Current Pharmaceutical Biotechnology - Online First
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Spray Drying: A Promising Technique for Inhalable Vaccine Development
Available online: 29 July 2025More LessIn the pursuit of innovative vaccine delivery methods, this review explores the potential of spray drying for formulating inhalable vaccines. Traditional vaccine approaches face challenges in administration, storage, and accessibility, especially in resource-limited settings. Inhalable vaccines, utilizing techniques like spray drying, offer a promising solution. By bypassing systemic circulation and directly targeting the respiratory mucosa, inhalable vaccines can induce robust mucosal and systemic immune responses. Spray drying, a versatile technique, is particularly well-suited for formulating inhalable vaccines. It transforms liquid vaccine formulations into finely dispersed powders, enabling efficient delivery to the lungs. This review delves into the unique characteristics of spray-dried particles, their impact on immune system activation, and their role in overcoming traditional vaccine limitations. The exploration emphasizes the potential for spray drying to revolutionize vaccine development, providing a comprehensive overview of its applications and contributions to improving global public health.
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Emerging Protein Therapeutics as a Strategy for Cervical Cancer Treatment
Available online: 25 July 2025More LessCervical cancer continues to be a critical public health concern globally, with increasing mortality rates, particularly in Low- and Middle-Income Countries (LMICs) where healthcare resources remain limited. With more than 300,000 fatalities each year, it is the fourth most frequent cancer in women globally. Long-term infection with carcinogenic Human Papillomavirus (HPV) variants, which cause cancer through viral proteins including E5, E6, and E7, is the leading cause of cervical cancer. These proteins interfere with host cellular functions, which promote the development and spread of cancer. Conventional treatment strategies, including chemotherapeutics and immunotherapies, have achieved varying degrees of success. However, protein-based therapeutics have recently emerged as a promising class of agents in oncology due to their ability to modulate specific molecular targets with high precision and specificity. These biologics interact with cell surface receptors and orchestrate essential signalling cascades, such as the NF-κB, MAPK, and PI3K/AKT pathways. Notably, new classes of protein therapeutics, such as toxin-based agents and Bromodomain and Extra-Terminal (BET) domain inhibitors, have shown effectiveness in disrupting tumor-promoting pathways. In addition to their direct antitumor activities, protein therapeutics also modify the tumor microenvironment, affecting stromal elements and lymphatic architecture, and ultimately promoting apoptosis. This review critically examines the landscape of protein-based therapeutic approaches for cervical cancer, delineating their mechanisms of action and highlighting their role in targeting inflammatory pathways—such as inflammasomes and cytokine networks—that contribute to tumor progression and immune modulation.
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Formulation and Assessment of Broccoli Extract-infused Hydrogel for Targeted Breast Cancer Therapy
Authors: Kajal Parashar, Mohammad Rashid Khan, Minhaj Ahmad Khan, Pratibha Pandey and Fahad KhanAvailable online: 21 July 2025More LessIntroductionThe most prevalent kind of cancer among women is breast cancer. Consequently, the development of novel, potent medications with fewer adverse effects is required to treat it. Breast cancer is frequently treated clinically with chemotherapy and surgery. However, there are still significant challenges to be addressed in the treatment of breast cancer, including inadequate therapeutic results, inevitable side effects, and the surgical excision of breast tissue. The objective of the study is to develop broccoli extract-based Hydrogel to overcome the challenges in breast cancer treatment.
MethodsThe developed Hydrogel was characterized by certain techniques to check its stability and drug release abilities. Swelling studies and drug release behavior were checked; the porosity of Hydrogel was checked by SEM EDX Analysis. Furthermore, in vitro studies were done to check the anti-breast cancer activity of the developed Hydrogel.
ResultsThe hydrogel was a highly porous structure with and compressive modulus, which makes it good for biological use in drug delivery. The in vitro studies showed that, developed Hydrogel inhibits the growth of breast cancer cells (MCF-7) at different concentrations and time intervals of 24 and 48 Hrs and was compatible with the non-cancerous cell line 3T3-L1. The results indicate the tolerability of Hydrogel at the level of cells.
DiscussionsNumerous investigations have demonstrated the anticancer effects of SFN by influencing the various biological processes that tumor cells engage in. In breast cancer cell lines, SFN functions as an HDAC inhibitor and reduces the expression of ER, EGFR, & HER-2 proteins. SFN also triggers apoptosis and cell cycle halt. Both Hydrogel and SFN inhibit the cells growth in MCF-7 breast cancer cells and agree with the previous studies.
ConclusionIn conclusion, we synthesized a hydrogel using broccoli extract to treat breast cancer with better stability, tolerance, and effectiveness through sustained local drug delivery. It was determined that this new hydrogel was a simple and affordable way to accomplish the continuous gene release feature, which would enhance the therapeutic efficacy in anti-cancer treatment while reducing the likelihood of potentially fatal side effects.
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Exploring Immunogenetic Mechanisms in Parkinson’s Disease Using Single-cell Transcriptomics and Mendelian Randomization
Authors: Dongyuan Xu, Yu Lei, Ji Wu, Keyu Chen, Songshan Chai and Nanxiang XiongAvailable online: 21 July 2025More LessIntroductionParkinson’s disease (PD) is a prevalent neurodegenerative disorder characterized by the progressive loss of dopaminergic neuron. Although the role of immunity in PD has been increasingly recognized, the immunogenetic mechanisms underpinning its progression remain largely unresolved.
MethodsWe employed an integrative approach combining Mendelian randomization (MR), expression quantitative trait loci analysis, and single-cell RNA sequencing to investigate immune cell infiltration and transcriptional regulation in PD. Immune cell composition, pathway activation, and gene regulatory networks were assessed through single-cell gene set enrichment analysis and transcriptional correlation analyses.
ResultsImmune profiling revealed significant increases in naive B cells (1.22-fold), plasma cells (3.00-fold), switched memory B cells (2.85-fold), and unswitched memory B cells (6.70-fold) in PD patients compared to controls (p < 0.001). MR analysis identified five causal genes- CYTH4, FGR, LRRK2, RIN3, and SAT1- associated with monocyte, neutrophil, and B cell infiltration. SAT1 (OR: 1.529; 95% CI: 1.018–2.297) and RIN3 (OR: 1.222; 95% CI: 1.039–1.437) showed strong associations with PD risk (p < 0.01). SAT1 positively correlated with PARK7 and regulated reactive oxygen species signaling, while FGR negatively correlated with ABCA4, influencing lipid metabolism and immune responses.
DiscussionThese findings highlight distinct immunogenetic mechanisms driving PD progression. The SAT1-PARK7 axis appears to modulate oxidative stress and neuroinflammation, whereas the FGR-ABCA4 interaction may affect metabolic and immune pathways. While the study is limited by population heterogeneity and the challenges of inferring causality, it provides mechanistic insights into immune contributions to PD.
ConclusionOur integrative genomic analysis identified novel regulatory networks involving immune-related genes in PD, offering potential targets for mechanistic understanding and therapeutic development.
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Potential of the β-Myrcene Rich Essential Oil from Astronium Urundeuva (M.Allemão) Engl. (Anacardiaceae) to Potentiate Fluconazole Activity and Inhibit Morphological Transition in Candida Species
Authors: José Thyálisson da Costa Silva, Saulo Almeida Menezes, Maria Hellena Garcia Novais, Naiza Saraiva Farias, Adrielle Rodrigues Costa, Francisco Sydney Henrique Félix, Ademar Maia Filho, Murilo Felipe Felício, Nadilânia Oliveira da Silva, Ginna Gonçalves Pereira, Cicero dos Santos Leandro, Alison Honorio de Oliveira, Lariza Leisla Leandro Nascimento, Luiz Filipi Teles Feitosa, Julimery Gonçalves Ferreira Macedo, Maria Flaviana Bezerra Morais-Braga, Henrique Douglas Melo Coutinho, Natália Cruz-Martins and José Weverton Almeida-BezerraAvailable online: 11 July 2025More LessBackgroundIn view of the increasing resistance of Candida species, it is necessary to explore alternative strategies. In this context, essential oils have emerged as promising options, among which the essential oil of Astronium urundeuva (M. Allemão) Engl. has shown potential, as it is traditionally used in folk medicine for the treatment of inflammation and multiple infections. Thus, the aim of this study was to evaluate the chemical profile, anti-Candida activity, and Fluconazole (FCZ) potentiating effect of the essential oil extracted from the leaves of A. urundeuva (EOAU) and its ability to inhibit the virulence mechanism in Candida species.
MethodsThe essential oil was obtained via hydrodistillation and characterized using gas chromatography-mass spectrometry. To evaluate the antifungal effects and the modulating activity of Fluconazole (FCZ), the essential oil was diluted in DMSO (1 mL) and SDB medium (9 mL) and tested on 3 Candida strains using the serial microdilution method. In addition, a morphological transition assay was used to evaluate its capacity to inhibit fungal virulence.
ResultsThe major constituent of EOAU was the monoterpene β-myrcene (71.07%). The results indicate that the essential oil exhibits an antifungal effect, with C. tropicalis being the most susceptible species. At subinhibitory concentrations (MC/8), the EOAU enhanced the action of fluconazole against C. krusei and C. tropicalis. The EOAU strongly inhibited the morphological transition in C. tropicalis.
ConclusionEOAU is rich in β-myrcene and exhibits an interesting fungistatic effect, making it a great natural candidate for inhibiting Candida spp. virulence.
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Advances in Polymer-based Nanoparticles for Biomedical and Industrial Applications
Available online: 11 July 2025More LessPolymeric nanoparticles (PNPs) are considered to be a revolutionary method for drug delivery and offer significantly more advantages than conventional drug delivery systems. This review synthesizes recent research on biodegradable polymers in drug delivery, emphasizing their properties, modifications, toxicity, and applications in drug absorption. It consolidates key insights from 193 research papers to offer a comprehensive overview of the field, addressing existing research gaps and highlighting various applications. Polymers can be classified based on their structure, source, and biodegradability, which are crucial for assessing their environmental impact and suitability for various applications. Polymers are categorized into two main groups based on biodegradability: biodegradable and non-biodegrad-able. The primary aim of this review is to elucidate the diverse applications of natural and synthetic biodegradable polymeric nanoparticles, which include cancer treatment, diabetes management, pulmonary drug delivery, and the treatment of ocular infections, all of which are thoroughly explored in this review. Additionally, the role of polymer-based hydrogels is explored as a promising solution in drug delivery. These hydrogels address issues such as poor stability and enhance treatment efficacy by ensuring the sustained release of drugs.
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Growth of Chloroquine Crystals and Their Properties as a Beta-hematin Inhibitor
Available online: 10 July 2025More LessIntroductionThe crystallization of heme into β-hematin and its subsequent conversion to hemozoin has garnered significant interest as a promising target for the development of novel antimalarial therapies, particularly through the heme detoxification pathway. Furthermore, the therapeutic efficacy of chloroquine (CQ) has been widely recognized, with several studies highlighting its role as an inhibitor of β-hematin and hemozoin formation.
Materials and MethodsThis study reports the synthesis of two novel CQ-derived compounds, 7-chloroquinolin-4-amine (CQC1) and 7-chloro-4-(1-oxidaneyl)-3,4-dihydroquinoline (CQC2), and evaluates their individual inhibitory effects on β-hematin formation.
ResultsNotably, comparative analysis of the experimental data revealed significant variability in the IC50 values for these compounds, which correspond to the concentration required to inhibit 50% of β-hematin synthesis. The impact of incubation time and compound concentration on IC50 values was also investigated.
ConclusionThe findings suggest that increasing the concentration and incubation time of both CQ derivatives led to a reduction in their IC50 values, with both compounds demonstrating enhanced inhibitory activity relative to commercial chloroquine (CQ).
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Unveiling the Influence of Culture Conditions on Mesenchymal Stem Cells: A Transcriptome Sequencing Study
Authors: Bin Wang, Jiang Xie, Bo Pang, Fang Dong, Junna Zhou and Huanzhang ZhuAvailable online: 10 July 2025More LessAimsTo optimize the culture process of Mesenchymal Stem Cells (MSCs) and enhance their biological functions.
BackgroundMSCs have shown great potential in treating various diseases due to their low immunogenicity and potent paracrine effects. However, the inherent heterogeneity of MSC populations, which can vary depending on the culture conditions, may challenge large-scale clinical application.
ObjectiveThis study investigates the inconsistency of MSCs cultured in different media, from the transcriptional level to biological functions.
MethodRNA sequencing was used to identify different expressed genes of MSCs separated and expanded in three media, which were then validated with qPCR. In vitro assays, including proliferation, tube formation, wound healing, multilineage differentiation, paracrine secretome and injured hepatocyte protection assay, were performed to verify the potential differences among three groups.
ResultMSCs cultured in platelet lysate-containing medium exhibited high expression of genes involved in extracellular matrix regulation, collagen metabolic processes, and angiogenesis, whereas those cultured in serum-free medium demonstrated high expression of genes associated with DNA replication and chromosome segregation. MSCs cultured under serum-containing medium indicated high levels of genes associated with extracellular matrix regulation, cartilage development, and chemotaxis. The results of functional comparative experiments were consistent with the differences in their gene expression patterns. Notably, MSCs cultured in the serum-containing system exhibited greater protective effect against hepatocyte activity.
ConclusionDifferent culture conditions affect the biological functions of MSCs. Optimal conditions should be investigated for applications. Next, an in vivo model should be established to evaluate differences in MSC tissue repair function under various culture conditions.
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Wound Dressing Potential of Bacterial Cellulose Produced by Acetobacter tropicalis NBRC 16470 Strain Isolated from Rotten Fruits
By Halil BalAvailable online: 08 July 2025More LessBackgroundBacterial cellulose, which is used in many fields from biomedicine to electronics, is promising as an alternative wound dressing instead of traditional gauze in wound treatment.
ObjectivesThe objective of this study was to evaluate the potential use of cellulose produced by acetic acid bacteria isolated from rotten fruits as a wound dressing.
MethodsIn our study, rotten fruit samples were incubated in Hestrin-Schramm (HS) Broth medium. Then, a loopful of the pellicle-forming samples was taken and inoculated onto Hestrin-Schramm (HS) agar using the streak culture method and bacteria were isolated. Identification of bacteria was performed using the BLAST program after 16S rRNA sequence analysis. Physicochemical properties and morphological characterization of bacterial cellulose produced by static culture were examined using Fourier transform infrared (FTIR) and scanning electron microscopy (SEM), respectively, and the swelling ratio was investigated. Antibiotic susceptibilities of bacterial cellulose membranes impregnated with different concentrations of gentamicin (50 µg/mL, 100 µg/mL, 200 µg/mL) against Staphylococcus aureus ATCC 29213 and Escherichia coli ATCC 25922 were determined by the disk diffusion method.
ResultsThe bacteria isolated from rotten fruits were identified as Acetobacter tropicalis NBRC 16470. The structure of cellulose produced by static culture was confirmed by a peak at 3,240 cm−1 in FTIR analysis and fibril structures in SEM analysis. Bacterial cellulose had a swelling ratio of 27.37± 2 .99 fold. The zone diameters formed by bacterial cellulose disk (50 µg/mL gentamicin) and gentamicin (10 µg) disk against Staphylococcus aureus ATCC 29213 and Escherichia coli ATCC 25922 were almost the same.
ConclusionThe production of bacterial cellulose, which has the potential to be used as a wound dressing from rotten fruits, is important in terms of recycling and low cost.
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Flavonoids as Antimicrobial Agents: A Comprehensive Review of Mechanisms and Therapeutic Potential
Available online: 03 July 2025More LessFlavonoids, plant-derived polyphenolic compounds, have garnered significant attention for their broad-spectrum antimicrobial potential, encompassing antibacterial, antifungal, and antiviral activities. These bioactive molecules exert their effects through multiple mechanisms, including disruption of microbial cell membranes, inhibition of nucleic acid synthesis, suppression of biofilm formation, and interference with key bacterial enzymes. Notable flavonoids such as quercetin, apigenin, and kaempferol exhibit potent activity against bacterial pathogens like Escherichia coli, Staphylococcus aureus, and Pseudomonas aeruginosa, as well as fungal pathogens such as Aspergillus fumigatus and Candida albicans. Furthermore, flavonoids can potentiate the efficacy of conventional antibiotics by inhibiting bacterial efflux pumps, a critical mechanism contributing to antibiotic resistance. Recent advancements in structure-activity relationship (SAR) studies have underscored the influence of structural modifications—such as prenylation, hydroxylation, and methoxylation—on the antimicrobial potency of flavonoids. By highlighting these insights, this review provides a unique perspective on flavonoid-based antimicrobial strategies, particularly their synergistic potential with existing antibiotics. These findings position flavonoids as promising candidates for novel antimicrobial therapies, particularly in the face of increasing antibiotic-resistant pathogens. However, further research is needed to elucidate their precise mechanisms and optimize their therapeutic applications.
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Green Synthesis of Silver Nanoparticles Using Grewia tiliaefolia Vahl Leaf Extract: Characterisation, Process Optimisation, and Hepatoprotective Activity Against Paracetamol-induced Liver Toxicity in Rats
Available online: 02 July 2025More LessIntroductionScientists around the world are focusing on ‘green,’ environment-friendly, and cost-effective green synthesis of nanometals using various plant extracts to combat various ailments. Among nanometals, Silver (Ag) is one of the most commercialised nano-materials due to its wide applications in biotechnology and biomedical fields. The present study reports the first facile synthesis, characterization, and process optimisation of Ag nanoparticles (NPs) using aqueous Grewia tiliaefolia leaf extract (Gt) as a reducing and surface functionalising agent.
MethodsCharacterisation of Gt-mediated Ag-NPs was performed using FTIR. The morphology and microstructures of Gt-derived Ag-NPs were analysed using TEM and FE-SEM. In vitro, antioxidant activity was evaluated against DPPH radicals, hydrogen peroxide radicals, and ferric ions. In vitro, anticancer activity was assessed on MCF-7 and HepG2 cell lines. In vivo, hepatoprotective activity was tested against paracetamol-induced liver toxicity in rats.
ResultsFTIR analysis confirmed the interaction between Ag-NPs and Gt. The optimal conditions for Gt-derived Ag-NPs were found to be 4 mM AgNO3, 5% Gt, at 90°C for 60 minutes, at pH 9. UV-Visible spectroscopy, XRD, FE-SEM, and TEM revealed the phase formation, spherical morphology, and surface functionalisation of Gt-derived Ag-NPs, which were stable (-28.3 mV) with an average particle size of 14.5±0.05 nm. The Gt-derived Ag-NPs were found to be highly effective in significantly inhibiting DPPH radical, ferric ions, and hydroxyl radicals. Additionally, the cytotoxicity of Gt-derived Ag-NPs was more effective against MCF-7 cells compared to HepG2 cells. They also exhibited dose-dependent protection against hepatoprotective activity in albino rats.
DiscussionThe hepatoprotective effects of Gt-mediated Ag-NPs likely result from the combined action of bioactive phytochemicals (such as α/β-amyrin, γ-lactones, betulin, and lupeol), and their ability to scavenge ROS, reduce oxidative stress, and modulate inflammatory pathways. These mechanisms, supported by reduced lipid peroxidation and increased antioxidant activity in paracetamol-induced hepatotoxicity, suggest their therapeutic potential in liver protection and regeneration.
ConclusionOverall, Gt proves to be an eco-friendly and non-toxic source for synthesizing bioactive Ag-NPs at optimal conditions.
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HIV Co-infected with Asymptomatic Visceral Leishmaniasis Exhibited a High Prevalence of the B type HBV Genotype
Authors: Shiril Kumar, Ganesh Chandra Sahoo, Krishna Pandey and Ashish KumarAvailable online: 23 June 2025More LessBackgroundMultiple organisms infect the host simultaneously in the case of co-infection. This study intended to determine the prevalence of viral hepatitis B in HIV/Asymptomatic VL co-infected patients and to identify the HBV genotype circulating in these patients in Bihar, India.
MethodsThere were 96 archived samples with co-infection with HIV and asymptomatic VL-positivity included in this study. A real-time PCR test was performed to measure the load of HBV DNA, and a chemiluminescent immunoassay was performed to determine the level of HBsAg.
ResultsOur study evaluated HIV and AVL co-infected patients with two coexisting genotypes of HBV and observed the expression of the B, C, and D genotypes. HBsAg levels correlated directly with HBV DNA levels in almost every case.
ConclusionFor a better understanding of this disease, authors need approaches and strategies for improving the current diagnostic techniques, as well as studies focusing on vector control procedures and other operational tools.
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Elucidating the Role of Gardeniae Fructus and Scutellariae Radix Herb Pair in Alzheimer’s Disease via Network Pharmacology: Emphasis on Oxidative Stress, and the PI3K/Akt Pathway
Authors: Jia Xi Ye, Jia Ying Wu, Min Zhu, Liang Ai and Qihui HuangAvailable online: 23 June 2025More LessBackgroundThe combination of Gardeniae Fructus (ZZ) and Scutellariae Radix (HQ) is a traditional Chinese medicine used for Alzheimer’s disease (AD). However, the molecular mechanisms underlying its anti-dementia effects, particularly its multi-component synergy and pathway modulation, remain poorly understood.
ObjectiveOur study employed an integrated systems pharmacology approach to mechanistically decode the anti-AD properties of ZZ-HQ, combining network pharmacology predictions, molecular docking simulations, and experimental validation to identify critical bioactive components, molecular targets, and therapeutic pathways.
MethodsA comprehensive network pharmacology analysis was performed to identify bioactive compounds within the ZZ-HQ complex and their potential protein targets associated with AD. Molecular docking was utilized to predict and assess the binding interactions between key bioactive compounds and AD-related protein targets. Experimental validation focused on baicalin, a major active compound in the ZZ-HQ complex, evaluating its effects on cell viability, apoptosis regulation, oxidative stress reduction, and the activation of the PI3K/Akt signaling pathway.
ResultsFifty-four bioactive compounds were identified in the ZZ-HQ complex, interacting with 258 AD-associated proteins. Key compounds, such as baicalein and norwogonin, demonstrated strong binding affinities with pivotal proteins, including SRC and PIK3R1. Experimental studies further confirmed that baicalin significantly improved cell viability by activating the PI3K/Akt pathway, reducing apoptosis, and alleviating oxidative stress.
ConclusionOur study uncovered the therapeutic potential of the ZZ-HQ combination in addressing AD through multi-target mechanisms, particularly via modulation of the PI3K/Akt pathway and oxidative stress. These findings provide a scientific basis for the pharmacological effects of ZZ-HQ and offer valuable insights for further research on its potential application in AD treatment.
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Challenges and Progress of Orphan Drug Development for Rare Diseases
Authors: Abhijit Debnath, Rupa Mazumder, Avijit Mazumder, Pankaj Kumar Tyagi and Rajesh Kumar SinghAvailable online: 23 June 2025More LessRare diseases, defined as conditions affecting fewer than 200,000 people in the United States or less than 1 in 2,000 people in Europe, pose significant challenges for healthcare systems and pharmaceutical research. This comprehensive review examines the evolving landscape of orphan drug development, analyzing scientific, economic, and regulatory challenges while highlighting recent technological breakthroughs and innovative approaches. We explore how artificial intelligence, next-generation sequencing, and personalized medicine are revolutionizing rare disease research and treatment development. The review details key advances in therapeutic approaches, including gene therapy, cell-based treatments, and drug repurposing strategies, which have led to breakthrough treatments for previously untreatable conditions. We analyze the impact of international collaborations, such as the International Rare Diseases Research Consortium, and discuss how regulatory frameworks worldwide have evolved to accelerate orphan drug development. The paper highlights the growing market for orphan drugs, projected to reach $242 billion by 2024 while examining the complex challenges of ensuring treatment accessibility and economic sustainability. We assess innovative clinical trial designs, patient registry development, and emerging strategies in personalized medicine that are transforming the field. Despite notable advancements, significant gaps remain in diagnosis, treatment accessibility, and sustainable funding for rare disease research. The review concludes by proposing specific actions for enhancing international collaboration, improving patient registries, and aligning incentives to address the unmet medical needs of rare disease patients, emphasizing the critical role of continued public-private partnerships and technological innovation in advancing orphan drug development.
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A Novel Weight Loss Mechanism of Hydroxysafflor Yellow A in Obese Mice: Involvement of Immune Inflammation via Prkcd, Btk, and Vav1 Genes in Adipose Tissue
Authors: Ruizhen Hou, Wenjing Hu, Kemin Yan, Xiaorui Lyu, Yuchen Jiang, Xiaonan Guo, Yuxing Zhao, Linjie Wang, Hongbo Yang, Huijuan Zhu, Hui Pan and Fengying GongAvailable online: 22 May 2025More LessIntroductionHydroxysafflor Yellow A (HSYA), known for its anti-inflammatory effects in cardiovascular diseases, has also been shown to reduce adiposity and improve metabolic disorders in diet-induced obese (DIO) mice. However, the molecular mechanisms underlying its anti-obesity effects, particularly whether they are mediated through immune-inflammatory pathways, remain unclear. This study aims to identify the key molecular mechanisms involved in HSYA's anti-obesity action.
MethodsMale C57BL/6J mice were divided into three groups: Standard Feed (SF), High-Fat Diet (HFD), and HFD with HSYA treatment (250 mg/kg/day for 9 weeks). Whole transcriptome sequencing of White Adipose Tissue (WAT) identified Differentially Expressed Genes (DEGs), which were integrated with network pharmacology predictions to identify key molecular targets of HSYA. RT-qPCR in WAT, 3T3-L1 adipocytes, and RAW264.7 macrophages validated the core genes, and molecular docking assessed HSYA’s binding affinity with these targets.
ResultsHSYA treatment significantly reduced body weight (35.27 ± 1.27g vs. 45.46 ± 1.68g, p < 0.05) and WAT mass (3.38±0.21g vs. 1.86±0.27g, p < 0.05) in DIO mice and ameliorated glucose and lipid metabolism abnormalities. Transcriptome analysis revealed 739 DEGs, with 21 overlapping genes identified between sequencing and network pharmacology analyses. Experimental validation highlighted Prkcd, Btk, and Vav1 as core genes within immune-inflammatory pathways, including chemokine and B cell receptor signaling, which are implicated in obesity-related inflammation. RT-qPCR confirmed the downregulation of Prkcd, Btk, and Vav1 after HSYA treatment, consistent with transcriptomic findings. Molecular docking analysis demonstrated strong binding affinities between HSYA and VAV1 (-8.5 kcal/mol), BTK (-6.9 kcal/mol), and PRKCD (-6.6 kcal/mol).
ConclusionHSYA demonstrates the therapeutic potential for obesity by modulating immune-inflammatory pathways in WAT, specifically targeting Prkcd, Btk, and Vav1 in mice. Given its clinical use in cardiovascular disease, these findings suggest that HSYA may offer broader therapeutic benefits, including obesity management, though further studies are needed to clarify the mechanisms and assess its applicability to humans.
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Naringin Alleviates Digoxin-induced Nephrotoxicity via Regulating Nrf2/ HO-1 and PI3K/ AKT/TGF-β Cascades in Rats’ Renal Tissues
Available online: 20 May 2025More LessBackgroundNephrotoxicity limits the clinical application of digoxin. One area that might be useful is the mechanical knowledge of altered renal function and renal impairment. We hypothesized that co-administration of naringin would affect digoxin nephrotoxicity by alleviating the altered renal oxidative/ antioxidant redox and apoptotic cascade.
Method40 male Wistar Albino rats (200 ± 50 g) were grouped into 4, every group included (n= 7), control, Nar., Dig. and Nar. + dig. Groups. Colorimetric estimation of kidney functions and renal oxidative/ antioxidant redox were done.
ResultsComparing digoxin alone, the concomitant administration of digoxin and naringin restored renal antioxidant/ oxidative redox, redistributed Nrf2, HO-1 mRNA exposure with a concomitant down-regulation of NF-κB, AKT and PI3K mRNA expressions. Moreover, a significant decrease of Smad3 and transforming growth factor-β (TGF- β) protein concentrations with a simultaneous rise of Smad7 were noticed in Nar. + dig. Arm when compared to Dig. group.
ConclusionThe co-administration of naringin and digoxin can mitigate digoxin-mediated nephrotoxicity by introducing antioxidant action. This is done by maintaining effects on renal oxidative/antioxidant cycle and lethality via regulating AKT/ PI3k/ Smad3/ Smad7 signaling pathways.
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Causal Relationships Between Specific Gut Microbiota Taxa, Plasma Metabolites, and Cerebral Small Vessel Disease Risk: A Mendelian Randomization Analysis
Available online: 20 May 2025More LessAimsThis study investigates causal relationships between gut microbiota (GM), plasma metabolites, and cerebral small vessel disease (CSVD), with a focus on identifying GM taxa and metabolites that mediate disease risk.
MethodsSummary data from genome-wide association studies on GM (MiBioGen), 1,400 plasma metabolites, and CSVD were analyzed using a two-step Mendelian randomization (MR) approach. The primary analysis utilized inverse-variance weighting, complemented by weighted median, weighted mode, and MR-Egger methods for robustness.
ResultsThe MR analysis identified 12 GM taxa associated with CSVD risk, including 7 taxa linked to increased risk (Veillonellaceae, Hungatella, Ruminococcus2, Lachnospiraceae UCG010, Streptococcus, Cyanobacteria, Verrucomicrobia) and 5 taxa linked to decreased risk (Faecalibacterium, Alphaproteobacteria, Eubacterium nodatum group, Fusicatenibacter, Rhodospirillales). Additionally, 10 plasma metabolites were causally associated with CSVD risk, with sphingomyelin (d18:2/14:0, d18:1/14:1), nicotinamide, 3-ethylcatechol sulfate (2), sphingosine, and phenylpyruvate-to-4 hydroxyphenylpyruvate ratio linked to increased risk, while phosphate-to-uridine ratio, adenosine 5'-diphosphate (ADP)-toflavin adenine dinucleotide (FAD) ratio, arginine, caffeine-to-theobromine ratio and N-succinylphenylalanine were linked to decreased risk. Mediation analysis identified 8 causal pathways through which plasma metabolites connect GM taxa to CSVD.
ConclusionThese findings underscore the substantial influence of GM and plasma metabolites on CSVD risk, highlighting potential therapeutic targets. Further investigation is needed to elucidate the biological mechanisms underlying these associations.
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Analysis of the Mechanism of PGLP-1 Inhibiting Gluconeogenesis Based on Whole Transcriptome Sequencing
Authors: Huashan Gao, Hao Yu, Weishuang Tong, Weiwei Fan, Yanqun Mai, Wenpo Feng and Yuanhao QiuAvailable online: 16 May 2025More LessObjectiveThrough comprehensive transcriptome sequencing of liver RNA in mice induced with streptozotocin (STZ) to develop hyperglycemia, we uncovered crucial genes associated with hyperglycemic processes, shedding light on their respective functions. Furthermore, we delved deeply into a discussion surrounding the mechanism behind plasma glucagon-like peptide 1 (PGLP-1) and its role in inhibiting gluconeogenesis.
MethodsLiver tissues from mice induced with STZ to develop hyperglycemia (M group), as well as those treated with PGLP-1 (P11 group) and Exendin-4 (E group), were collected. RNA extraction was performed for comprehensive transcriptome sequencing. Differentially expressed mRNA, microRNA (miRNA), and long-chain non-coding RNA (lncRNA) were identified and subjected to analysis of their respective GO and KEGG pathways. An association network involving mRNA-miRNA-lncRNA was constructed to pinpoint target molecules associated with gluconeogenesis. Furthermore, personalized analysis focused on eight gluconeogenesis-related signal pathways obtained from KEGG.
ResultsA total of 289 differentially expressed mRNA (dif-mRNA), 21 differentially expressed miRNA (dif-miRNA), and 463 differentially expressed lncRNA (dif-lncRNA) were screened from the M group and P11 group. 182 dif-mRNA, 239 dif-miRNA, and 384 dif-lncRNA were screened from the M group and E group. A total of 427 dif-mRNA, 261 dif-miRNA, and 525 dif-lncRNA were screened from the E group and the P11 group. Among them, mRNA was enriched to the PI3K-Akt signaling pathway, Type ll diabetes mellitus, the Insulin signaling pathway, and the PPAR signaling pathway, while lncRNA was mainly enriched in PI3K-Akt signaling pathway. Similar to the whole transcriptome sequencing, the results of gluconeogenesis personalized analysis showed that the PI3K-Akt signaling pathway was the key pathway, and Gck and Cyp7a1 were highly expressed after PGLP-1 was administered.
ConclusionAccording to our findings, we believe that PGLP-1 is a potential regulator of non-coding RNAs, including miRNAs and lncRNAs. Additionally, it modulates the PI3K-Akt signaling pathway, resulting in the upregulation of GcK and Cyp7a1. In this way, it effectively inhibits gluconeogenesis.
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Trojan Horses: A Secret Route for Nanomedicines
Authors: Zoya Amin, Daniya Nadeem, Huzaifa Shakil, Munsif Ali Jatoi, Rabail Baloch and Raahim AliAvailable online: 16 May 2025More LessThe nanoparticles are widely used in various drug delivery applications due to their versatility to encapsulate cargo loading and transport of therapeutic agents. Numerous studies have explored the use of nanomedicine-based drug delivery systems for treating various diseases. This research provides a smart and precise review of one of the nanoparticles-based drug delivery approaches i.e. the Trojan horse strategy which is employed for delivering the drug to the target efficiently and reliably. Furthermore the applicability of nanomedicines to cancer treatment is discussed with examples drawn from various systematic studies. The use of different nanomedicine platforms such as liposomes nanoparticles spherical nucleic acids extracellular vesicles and immune cells acting as Trojan horses is also explored in the context of cancer therapy. Finally a precise conclusion and future recommendations are provided for future researchers in the field of applied nanotechnology for the pharmaceutical domain.
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Circ-LRP6 Inhibits the Development and Progression of AAA Via miR-29a-3p/HIF-1α Axis
Authors: Fang Wang, Zhijian Sun, Wenke Yan and Haiqing WangAvailable online: 12 May 2025More LessBackgroundAt present, the research on the potential molecular mechanism of abdominal aortic aneurysm (AAA) is limited, which hinders the treatment of aneurysm and the development of drugs. CircRNA has been identified as a potential therapeutic target for diagnostic biomarkers in a variety of diseases. The purpose of this study was to explore the molecular mechanism of circLRP6 in AAA and to provide a theoretical basis for further clinical optimization of treatment.
MethodsThe animal model and cell model of AAA were constructed, and the circLRP6 expression was verified by in situ hybridization and qRT-PCR. The effect of circLRP6 on cell viability was determined using CCK-8 and BrdU. The effects of circLRP6 on the cell cycle and apoptosis were determined by flow cytometry. In addition, the interaction of circLRP6 with miR-29a-3p and HIF-1α was verified by the luciferase reporter gene and RIP. HIF-1α or caspase 3 expression was detected by immunofluorescence or western blot analysis.
ResultsOur previous results showed that the circLRP6 had reduced expression in AAA, and its overexpression significantly inhibited AngII-induced hAoSMC cell viability. In addition, bioinformatics prediction showed that there was a binding site between miR-29a-3p and circLRP6, showing a negative regulatory relationship in hAoSMC. In addition, the results of the luciferase reporter gene and RIP showed that the circLRP6 interacted with HIF-1α, and achieved effective treatment of AAA by inhibiting the miR-29a-3p/HIF-1α.
ConclusionCircLRP6 effectively inhibited the development of AAA by inhibiting the miR-29a-3p/HIF-1α, providing a theoretical basis for further clinical optimization of treatment.
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Antifungal Resistance in Vaginal Candidiasis Among Reproductive-age Women: A Review
Available online: 08 May 2025More LessCandida is a type of fungus that can cause infections in humans. Sometimes, these infections become tough to treat because the Candida fungus resists antifungal drugs. This resistance depends on both the specific type of Candida and how it interacts with the human body. For instance, Candida can change its genetic makeup or produce proteins that pump out the drugs, making them less effective. Additionally, Candida can form a protective layer called a biofilm, which shields it from the drugs. Candida can cause a variety of diseases, and vaginal candidiasis is among the most troublesome. Nearly every woman experiences this infection at least once in her lifetime. Higher rates of treatment failures and recurrent infections result from the developing issue of antifungal resistance, underscoring the need for a more thorough understanding of resistance mechanisms. Changes in hormonal levels and immune responses can significantly influence the effectiveness of antifungal treatments. Hormonal fluctuations can alter vaginal pH and immune functions, which in turn affects Candida colonization and persistence. Moreover, an imbalance in the vaginal microbiome can lead to an overgrowth of Candida and lead to the drug resistance candidiasis. This review delves into the molecular pathways that contribute to the resistance of vaginal candidiasis to antifungal treatments, focusing on both acquired and intrinsic resistance mechanisms. Acquired resistance develops due to genetic alterations following antifungal exposure, including mutations in genes encoding drug targets, overexpression of efflux pumps, and increased biofilm formation. In contrast, intrinsic resistance refers to the innate traits of the Candida species that inherently reduce the efficacy of antifungal agents. These characteristics include changes in membrane sterols, genetic mutations in target enzymes, and the presence of efflux pumps that remove antifungal medications. Understanding these complex mechanisms can inform future therapeutic strategies and improve clinical outcomes.
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Optimization and Characterization of Khellin Loaded Nanogels for the Potential Use in Psoriasis Management
Available online: 05 May 2025More LessBackgroundPsoriasis is a chronic skin disease that affects patients' quality of life. Treating psoriasis remains a significant challenge due to various factors, including individual response variability, drug resistance, and the range of side effects associated with currently available medications. Nowadays, numerous research efforts are being made aiming at overcoming the obstacles of the available psoriasis treatments are still taking place.
ObjectiveThis research aims to develop and evaluate a nanogel formulation loaded with khellin for the effective treatment of psoriasis.
MethodsKhellin nanogel was prepared using the self-assembly method with a synthesized gelatin-pluronic copolymer. The novel formulation was characterized via size, size distribution, encapsulation efficiency, in vitro release, and ex vivo skin deposition.
ResultsThe final nanogel formulation had an average size of 119.6 nm, a polydispersity index of 0.248 and an excellent encapsulation efficiency of 88%. In vitro drug release study demonstrated that nanogels showed a great accelerated drug release profile by releasing khellin within 2 hours, which is suitable for photochemotherapy applications. In addition, khellin-loaded nanogel formulation had 1.7 times better skin deposition potential than the control gel formulation.
ConclusionThe prepared nanogel formulation provides a high potential to be an ideal drug delivery system of khellin in combination with phototherapy for more efficient psoriasis treatment.
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The Biological Effects of Nano-curcumins against Drugs and Chemicals-Induced Nephrotoxicity: A Systematic Review
Available online: 30 April 2025More LessIntroduction/ObjectiveDrug and chemical nephrotoxicity is a common cause of kidney disorders. This systematic review aimed to evaluate the recent progress in applying nano-curcumins (nano-CURs) to prevent and mitigate drug and chemical-induced nephrotoxicity, highlighting their underlying protective mechanisms and therapeutic potential.
MethodsA comprehensive search of experimental and clinical studies was conducted in various databases, including Web of Science, PubMed/MEDLINE, Scopus, Embase, and Cochrane Library. The studies were analyzed for improvements in bioavailability, mechanisms of action, and outcomes in reducing kidney damage. After extracting the data and entering it into an Excel sheet, the essential information and the related knowledge on consequences and mechanisms were collected. The collected information was discussed and analyzed.
ResultsThe antioxidant property of nano-CURs in dealing with nephrotoxicity is one of their most critical nephroprotective properties. They also exhibit potent anti-inflammatory, anti-apoptotic, and anti-pyroptotic effects. Moreover, nano-CURs improve mitochondrial function, modulate kidney biochemical markers, modulate electrolyte imbalance, reduce endoplasmic reticulum (ER) stress, and improve kidney histopathological changes and autophagy, offering protection against nephrotoxicity induced by various drugs and chemicals. Nano-CURs significantly improve histopathological changes. Animal models have demonstrated reduced oxidative stress, inflammation, and apoptosis, causing improved renal function and histological outcomes.
ConclusionNano-CURs have shown promising nephroprotective effects in experimental studies. However, these results have not been significant in clinical trial studies. Future research should focus on clinical trials and optimizing formulations for broader therapeutic applications.
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Clinical Diagnosis and Treatment System for Neurological Psychological Gastrointestinal Diseases Based on Multimodal Artificial Intelligence and Immunology
Authors: Liangyu Li, Jun Jiang, Lizhong Guo, Javier Santos, Ana María González, Siyi Li and Yi QinAvailable online: 29 April 2025More LessObjectiveTo predict and assist in the treatment of colorectal cancer.
BackgroundPrecision medicine systems can provide strategy optimization for the diagnosis and treatment of colorectal cancer to meet the needs of clinical pricing institutions.
AimTo design an artificial intelligence multimodal gastrointestinal disease clinical information system based on neuroimmune gene regulation.
MethodsThe system includes the use of cell gene expression levels to predict the 5-year survival rate of cancer patients, and the development of disease incidence rate prediction models based on immune cell status and living habits in somatic cell testing. The biological mechanism of feature selection in survival prediction systems was elucidated using single-cell sequencing technology, and this mechanism was analyzed in depth using molecular simulation techniques. Based on NCAM1 and CADM1 genes, biological activation pathway analysis was conducted to explore the biological mechanism of their synergistic immune genome regulation of gastrointestinal tumor proliferation.
ResultsThe accuracy of each model is higher than 0.70. The experimental credibility is high.
ConclusionThe research team conducted a detailed analysis of the biological characteristics of AI algorithms and reached a consensus with clinical experts. The ethical approval number of Chifeng Cancer Hospital is 202401, which has been reported by the World Health Organization.
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Sirtuins in Osteosarcoma: Cracking the Code and Opening Up New Treatment Options
Authors: Yushi Zhao, Yong Han, Baichuan Wang and Ting WangAvailable online: 25 April 2025More LessOsteosarcoma (OS) is a frequent primary malignant bone tumor that primarily affects adolescents and the elderly, and it is prone to metastasis and recurrence. The prognostic status of metastatic and recurrent OS has remained stagnant over the past decades despite the availability of an extensive range of chemotherapy drugs in the clinic. To increase the overall survival and quality of life of patients with osteosarcoma, new therapeutic approaches must be developed immediately. In recent years, sirtuins (SIRT1–7) have garnered a lot of attention as researchers investigate the mechanisms underlying OS development and look for efficient treatment approaches. The nicotinamide adenine dinucleotide (NAD+)-dependent histone deacetylases (HDACs) that make up the sirtuin family are engaged in several biologically controlled processes, including proliferation, invasion, metastasis, apoptosis, autophagy, and chemotherapy resistance. Despite their significance in cancer having been avidly studied for decades, their specific functions and mechanisms of action are not yet clear due to limited reports. This review will summarize the current research status and look forward to the directions and prospects of its application in osteosarcoma research, aiming to open up new avenues for the treatment and study of osteosarcoma.
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A Baicalin-targeted ZHX2/MMP14 Axis Attenuates Cirrhotic Portal
Authors: Hui Wang, Jiawei Ma, Jinghe Liu, Xiao Liu, Xiao Cai and Yufei ChangAvailable online: 24 April 2025More LessBackgroundGiven the high mortality associated with Cirrhotic Portal Hypertension (CPH) worldwide, this study investigates the mechanism by which baicalin (BA), known for its beneficial effects on cirrhosis, alleviates CPH.
MethodsThe CPH model was established in Sprague-Dawley (SD) rats, followed by 4-week oral administration of 30 and 60 mg/kg/day BA. SD rats were randomly assigned to four groups (n=6/group): Con, Model, BA-30, and BA-60. Portal vein smooth muscle cells (PVSMCs, extracted from SD rats, n=6) were incubated with 5, 10 and 20 μmol/L BA. The levels of liver function indicators and von Willebrand factor (vWF) were determined by biochemical and immunohistochemical analyses, respectively. The portal pressure (PP) was examined. The liver fibrosis was detected by Sirius red staining. The levels of fibrosis-, angiogenesis- and proliferation-related indicators, zinc fingers and homeoboxes 2 (ZHX2), and matrix metallopeptidase 14 (MMP14) were quantified by Western blot. The levels of and interaction between ZHX2 and MMP14 were separately measured by quantitative real-time polymerase chain reaction (qRT-PCR) and luciferase reporter assay. The proliferation and migration of PVSMCs were assessed by EdU staining and scratch test, respectively.
ResultsBA up-regulated ZHX2 and down-regulated MMP14 (P<0.001). BA concentration-dependently suppressed liver fibrosis, PP, and angiogenesis in the liver tissue, as well as PVSMC proliferation and migration, while enhancing liver function (P<0.05). Further, according to the GRNdb database and luciferase reporter assay, ZHX2 is bound with the promoter of MMP14. ZHX2 could suppress the MMP14 level (P<0.001). ZHX2 silencing reversed the effects of BA treatment on the proliferation and migration of PVSMCs, whereas MMP14 silencing could further offset the role of ZHX2 silencing in the BA-treated PVSMCs (P<0.05).
ConclusionBA up-regulates ZHX2 to reduce the level of MMP14 and alleviate CPH. Understanding the mechanisms of BA in CPH may provide a foundation for novel interventions to attenuate CPH.
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Anti-Cancer Properties and Mechanistic Insights of Dihydroquercetin
Authors: Cheng Zhang, Yuqiao Zeng, Bing Wu, Li Wang, Pengfei Wu, Ao Shen and Likun WangAvailable online: 24 April 2025More LessDihydroquercetin (DHQ), also known as taxifolin, is a naturally occurring flavonoid compound that serves as an active pharmaceutical ingredient. It is commercially available in the form of dietary supplements. As the reduced form of quercetin, DHQ contains five phenolic hydroxyl groups. This compound is capable of chelating transition metal ions, thereby effectively scavenging free radicals and detoxifying harmful substances while modulating enzyme activities. Consequently, DHQ exhibits potent antioxidant, anti-inflammatory, antiviral, and antibacterial properties. Given its significant pharmacological potential, DHQ exhibits anti-tumor activity against various malignant tumors, including breast cancer, gastric cancer, hepatocellular carcinoma, colonic neoplasms, melanoma, and prostate cancer. DHQ inhibits tumor occurrence and progression by regulating multiple signaling pathways, such as wnt/β-catenin, phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt), mammalian target of rapamycin (mTOR), transforming growth factor-beta (TGF-β), nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB), and mitogen-activated protein kinase (MAPK). The anti-tumor mechanisms of DHQ include inhibition of cell proliferation, invasion, and migration; induction of cell cycle arrest, activation of autophagy, apoptosis, epigenetic modification, suppression of epithelial-mesenchymal transition (EMT), enhancement of chemotherapy efficacy, and augmentation of immune function. In particular, DHQ potentiates the efficacy of chemotherapy drugs and augments immune function. Based on a systematic review of the pharmacological properties and anti-tumor mechanisms of DHQ across multiple malignant tumors, we conclude DHQ to be a promising natural compound with significant potential for anti-tumor therapy.
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Selenium Alleviates Oxidative Stress and Inflammation to Promote Postpartum Uterine Recovery via GPX1/GPX4/NRF2 Pathway in Mice
Authors: Xiangping Li, Peng Li and Pingzhi WangAvailable online: 24 April 2025More LessBackgroundSelenium is an important trace element that plays crucial roles in metabolism, immune function, and antioxidant defense. As an antioxidant, selenium helps to alleviate postpartum uterine inflammation and promotes uterine recovery. However, the exact mechanism underlying the role of selenium in postpartum uterine recovery is not fully understood.
ObjectiveThis study aimed to identify the underlying mechanism and examine how selenium enhances postpartum uterine healing.
MethodsFemale ICR mice aged 8 weeks were classified into five groups: control, postpartum model, low-dose selenium (100 nm), medium-dose selenium (200 nm), and high-dose selenium (400 nm). Endometrial morphology was evaluated by hematoxylin and eosin (H&E) staining. Oxidative stress markers, including superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPX), and malondialdehyde (MDA), and inflammatory factors, including tumor necrosis factor-alpha (TNF-α) and interleukin-1 beta (IL-1β), were measured using commercially available kits. GPX1, GPX4, and nuclear factor erythroid 2-related factor 2 (NRF2) expression were determined using real-time PCR and WB.
ResultsWe found damage and bleeding points in the endometrium and destruction of the ultrastructure of endometrial cells in the postpartum model group; however, mice treated with a high dose (400 nm) of selenium showed alleviated levels of pathological alteration in the endometrium. In addition, the levels of MDA in the postpartum mice group increased, while the SOD, CAT, and GPX levels decreased; however, changes in these oxidative stress markers were reversed after selenium treatment. For inflammatory factors, high levels of TNF-α and IL-1β were observed in postpartum mice, whereas they were decreased in selenium-treated groups. GPX1, GPX4, and NRF2 expression were reduced in postpartum model mice, but upregulated in selenium-treated mice.
ConclusionSelenium supplementation ameliorated postpartum uterine oxidative stress and inflammation and promoted uterine recovery via the GPX1/GPX4/NRF2 pathway in mice.
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Challenges and Pathways in Regulating Next-Gen Biological Therapies
Authors: Surendra Agrawal, Sunita Vaidya, Jitendra Patel, Pranita Jirvankar and Pravina GurjarAvailable online: 23 April 2025More LessBackgroundCurrent medicine could benefit from gene and cell therapies for genetic defects, cancer, and degenerative disorders. These therapies modify genetic material or biological components. CRISPR-Cas9 gene editing, stem cell, and CAR-T treatments are examples. Complex products need rigorous regulations to ensure quality, efficacy, and patient safety.
ObjectivesThis paper discusses international gene and cell-based treatment regulatory regimes, highlighting key issues and recent developments. It also includes gene and cell-based therapy classes and mechanisms.
MethodsThe publications on gene and cell therapy challenges and their regulatory approvals in the US, Europe, Japan, Australia, Brazil, Canada, and China were collected over the last 20 years from PubMed, Scopus, and Google Scholar and analyzed to determine the differences.
ResultsGene treatments correct genetic defects or disease processes by adding, removing, or changing cell genetic information. In contrast, cell-based therapies restore damaged tissues with modified or unmodified cells. Highly customized and patient-specific drugs make regulatory monitoring challenging. US FDA CBER controls gene and cell-based therapies. Before clinical trials, these biologic drugs must file BLAs for market approval and INDs.
DiscussionFDA's Breakthrough Therapy and Regenerative Medicine Advanced Therapy (RMAT) designations accelerate biological development. The EMA oversees EU Advanced Therapy Medicinal Products. ATMP quality, safety, and efficacy are CAT's top priorities. The Conditional Marketing Authorization process expedites access to life-threatening disease medicines while the MAA regulates them. Japan's PMDA's Conditional Time-Limited Approval for regenerative medicines provides early commercialization and rigorous post-market supervision. Similarly, each country has adopted some ways to expedite the approval of biologicals. Gene-editing drugs require specialized methods, long-term follow-up, and better safety to avoid off-target effects. GMPs ensure production uniformity, sterility, and safety, complicating manufacturing and quality control.
ConclusionThe review concludes that there is a need for worldwide regulatory harmonization and regulatory framework developments, including R.W.E., adaptive pathways, and personalization of biologics.
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A Comprehensive 4-Layered In Silico Pharmacogenomics Analysis of the Genetic Addiction Risk Severity (GARS) Test: Strong Genetic Evidence Supporting GARS as a Novel Personalized Pre-Addiction Assessment Tool in the Opioid Crisis Era
Authors: Alireza Sharafshah, Kai-Uwe Lewandrowski, Igor Elman, David Baron, Panayotis K. Thanos, Colin Hanna, Mark S. Gold, Rajendra D. Badgaiyan, Jean Lud Cadet, Edward J. Modestino, Eric R. Braverman, Catherine A. Dennen, Milan Makale, Keerthy Sunder, Kevin T. Murphy, Abdalla Bowirrat, Albert Pinhasov, Marjorie Gondre-Lewis, Eliot Gardner, Daniel Sipple, Nicole Jafari, Foojan Zeine, Jag Khalsa, Rossano Kepler, Alvim Fiorelli and Kenneth BlumAvailable online: 16 April 2025More LessBackgroundOverdose involving opioids is the black heart of the addiction crisis. “Pre-addiction,” as an encouraging concept by NIDA and NIAAA, seems best captured with the construct of dopamine dysregulation. Referring to the abundant publications on “Reward Deficiency Syndrome” (RDS), Genetic Addiction Risk Score (GARS) test, RDSQ29, and KB220, Pre-addiction can be referred to as “reward dysregulation” as a suitable suggestion. The hypothesis is that the true phenotype is RDS, and other behavioral disorders are endophenotypes where the genetic variants play important roles, specifically in the Brain Reward Cascade (BRC).
MethodsThis study tested the pharmacogenomics of the GARS panel by a multi-model in silico investigation in four layers: 1) Protein-Protein Interactions (PPIs); 2) Gene Regulatory Networks (GRNs); 3) Disease, drugs and chemicals (DDCs); and 4) Gene Coexpression Networks (GCNs).
ResultsAll in silico findings were combined in an Enrichment Analysis for 59 refined genes, which represented highly significant associations of dopamine pathways in the BRC and supported our hypothesis.
ConclusionThis paper provides scientific evidence for the importance of incorporating GARS as a predictive test to identify Pre-addiction, introduce unique therapeutic targets assisting in the treatment of pain, drug dosing of prescription pharmaceuticals, and identify the risk for subsequent addiction early in -life.
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Combating TB Pathology: Advanced Diagnostics, Innovative Therapies, and Public Health Strategies: A Review
Available online: 15 April 2025More LessTuberculosis (TB) continues to be a major global health challenge largely due to the complex nature of Mycobacterium tuberculosis. Its early detection and effective management are heavily reliant on advanced diagnostic methods. New drug delivery systems and repurposing existing drugs show great promise in improving TB treatment. This study explores the progress and hurdles in developing anti-TB drugs focusing on those currently in clinical trials. Additionally innovative approaches like immunotherapy combination therapy and adjunct therapy which include the use of phytochemicals are examined for their potential to enhance treatment outcomes and tackle drug resistance. These innovative approaches could be the key to the future of the fight against TB. It also highlights how these strategies could accelerate TB treatment. It incorporates public health strategies for preventing TB transmission and ensuring patients adhere to treatments. By addressing these key areas this work aims to contribute to the global fight against TB and improve the lives of those affected by the disease.
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Molecular Mechanisms of Immune Resistance in Pancreatic Cancer: An Update
Authors: Wei Ming Pang, Wei Meng Lim, Zi Ni Ngai and Rhun Yian KohAvailable online: 15 April 2025More LessPancreatic cancer is an exceptionally aggressive form of cancer with a poor prognosis, primarily due to several factors, one of which is the significant development of immune resistance. Despite new medical perceptions of the interaction between the immune system and tumour, experts have continually explored the molecular mechanisms of immune resistance in pancreatic cancer over the years but have not yet reached a complete understanding. Studying immune resistance is also fundamental because it gives us a better understanding of how to develop highly effective, individualised immunotherapeutic approaches. However, various characteristics can be used to describe the degree of immunological resistance. In the case of pancreatic cancer, the Tumour Microenvironment (TME) is specially structured in a way that it consists of stroma abundantly. Concurrently, it can regulate the secretion and expression of various immunosuppressants, like programmed death-ligand 1 (PD-L1), indoleamine 2,3-dioxygenase (IDO), adenosine, and inosine that impairs the anti-tumour response attributed from the immune system, along with growth factors that contributes to the development of tumour growth. Besides, oncogenic pathways, such as TP53 and KRAS mutation and immunosuppressive cell populations, including T-regulating cells and myeloid-derived suppressor cells collaboratively suppress the immune activity, thereby inducing immune resistance. These complexities present significant challenges in designing effective treatments. Immune checkpoints and mechanisms such as PD-L1-mediated MHC-1 downregulation, galectins, autophagy, TP53, and P2RX1-negative neutrophils also contribute to immune resistance. Hence, this review summarises the current knowledge regarding the underlying molecular mechanisms of immune resistance in pancreatic cancer, along with several existing molecular therapeutics and approaches to overcome these barriers.
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Interaction Between Staphylococcus aureus and Microbiota: Invasion or Commensalism
Authors: Ahmad Nasser and Shiva JahanbakhshiAvailable online: 14 April 2025More LessThe term “Microbiota” refers to the vast array of symbiotic microorganisms that coexist with their hosts in practically all organs. However, the microbiota must obtain nutrition and minerals from its host to survive; instead, they produce beneficial compounds to protect the host and regulate the immune system. Conversely, pathogenic bacteria utilize their enzymes to independently gain sustenance through an invasive process without almost any beneficial compound production. One of the fully equipped pathogens, Staphylococcus aureus, is present in nearly every organ and possesses a variety of defense and invasion systems including an enzyme, a mineral collection system, a system for detecting environmental conditions, and broad toxins. The microbiota properly can defend its kingdom against S. aureus; however, if necessary, the host immune system is alerted against the pathogen, so this system also acts against the pathogen, a game that can ultimately lead to the death of the pathogen. However, S. aureus can change the host's conditions in its favor by changing the host's conditions and causing inflammation, a condition that cannot be tolerated by the microbiota. In this review, we will explain how microbiota defend against S. aureus.
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Protective Role of Coffee in Thioacetamide-induced Nephrotoxicity: A Study in Rats
Available online: 09 April 2025More LessObjectiveThe purpose of the present research was to assess the protective role of coffee in thioacetamide-induced nephrotoxicity.
MethodsThe experimental period consisted of 18 weeks, divided into two phases. Four experimental groups were designed, each consisting of six rats. Group I was considered an untreated control group. Groups II and III were intraperitoneally injected with thioacetamide at a dose of 200 mg/kg body weight twice a week for twelve weeks during the first phase of the study. In the second phase, group II received saline, and group III and group IV received 0.4 mg/Kg of coffee daily for six weeks. The biochemical analysis was evaluated by the estimation of plasma urea, uric acid, creatinine, Malondialdehyde (MDA), Superoxide Dismutase (SOD), and catalase.
ResultsThiocetamide-induced nephrotoxicity resulted in the reduction of body weight, superoxide dismutase, and catalase activities, and an increase in kidney weight, plasma urea, uric acid, creatinine, and tissue malondialdehyde. Supplementation with coffee effectively increased body weight while reducing elevated levels of urea, uric acid, creatinine, and MDA. It also restored SOD and catalase activities in Group III (TAA + Coffee-treated).
ConclusionThis work shows that coffee can protect the kidneys against thioacetamide-induced nephrotoxicity in a rat model. It highlights the antioxidant potential of coffee by its ability to restore enzymatic antioxidant activity (SOD and catalase), lower oxidative stress markers (MDA), and enhance renal function measures (urea, creatinine, and uric acid). The study fills a significant gap by demonstrating coffee as a viable natural therapeutic agent for oxidative stress-induced kidney impairment, providing an alternative to conventional treatments with fewer side effects.
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Bioactive Phytochemicals: Unlocking the Promise of Natural Remedies for Diabetes Mellitus
Authors: Diksha Gulati, Ajmer Singh Grewal and Balraj SainiAvailable online: 03 April 2025More LessBackgroundMetabolic syndrome encompasses conditions such as diabetes mellitus (DM), which has become increasingly prevalent. Chemically synthesized medications are commonly used to mitigate the effects of DM and its complications; however, these often result in undesirable side effects, including weight gain, digestive issues, and heart failure.
ObjectiveThis review highlights the therapeutic potential of bioactive compounds and anti-diabetic plants that possess proven anti-diabetic properties. Focusing on phytomedicines also explores their possible mechanisms of action and positions this work relative to current reviews in the field.
MethodsA comprehensive literature analysis was conducted, emphasizing the therapeutic potential of bioactive compounds in anti-diabetic plants. Databases such as PubMed, Scopus, and Google Scholar were thoroughly searched to identify studies investigating the anti-diabetic properties and mechanisms of action of plant-derived bioactive compounds. Inclusion criteria focused on studies evaluating the pharmacological effects of herbal medicines, plant extracts, and isolated bioactive compounds on diabetes management.
ResultsTherapeutic plants, as sources of anti-diabetic compounds, offer significant advantages. They are affordable, exhibit minimal or no adverse effects, and do not necessitate strict dietary restrictions or intense exercise regimens. The integrated insights underscore the potential of phytomedicines to address limitations in current diabetes management strategies.
ConclusionThe unique focus on phytomedicines positions this review as a valuable resource for researchers and clinicians. Detailing mechanisms and evidence supporting the efficacy of these compounds, guides the development of innovative strategies for identifying and utilizing bioactive compounds in effective diabetes management.
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Unraveling the Mechanism of Tangmaikang Granules in Treating Diabetic Kidney Disease Based On UPLC-MS/MS, Network Pharmacology, Molecular Docking, Molecular Dynamics Simulations, and Experimental Validation
Authors: Zhixin Wang, Shuqin Liu, Ying Zhang, Huaming Xian, Xinzhu Yuan, Changwei Lin and Xisheng XieAvailable online: 27 March 2025More LessBackgroundDiabetic Kidney Disease (DKD) is a major cause of End-Stage Renal Disease (ESRD) and lacks effective treatments. Tangmaikang Granules (TMK), a multi-herb traditional Chinese medicine formulation, have shown potential in managing DKD. However, the precise active components, molecular mechanisms, and therapeutic advantages of TMK remain unclear.
ObjectiveThis study tests the hypothesis that TMK granules exert protective effects on DKD by targeting multiple pathways involved in oxidative stress, inflammation, and apoptosis in podocytes through a multi-targeted approach. The aim was to identify TMK’s bioactive components, evaluate its therapeutic potential, and uncover its molecular mechanisms in DKD.
MethodsThe bioactive constituents in TMK were determined through ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). Drug targets were identified using SwissTargetPrediction and SuperPred, whereas DKD-associated targets were obtained from the GeneCards, DisGeNET, OMIM, and TTD databases. A Protein-Protein Interaction (PPI) network was constructed, and key targets were identified via topological analysis. Molecular docking and dynamics simulations were performed to evaluate stable binding interactions. GO and KEGG pathway enrichment analyses were conducted to uncover relevant signaling pathways. TMK's effects on oxidative stress, inflammation, and apoptosis in podocytes were assessed using CCK-8, flow cytometry, RT-qPCR, ELISA, and Western blot assays.
ResultsThirty active compounds and 384 potential therapeutic targets were identified, with eight key targets. Pathway enrichment analysis revealed TMK’s involvement in AGE-RAGE, EGFR, HIF-1, and apoptosis pathways, affecting inflammatory cytokine responses and oxidative stress. In vitro experiments demonstrated that TMK significantly reduced oxidative stress, inflammation, and apoptosis in podocytes by inhibiting the MAPK and NF-κB pathways.
ConclusionTMK granules target DKD through a multi-component, multi-target strategy, effectively mitigating oxidative stress and suppressing inflammatory and apoptotic pathways. This study integrates advanced computational and experimental methods, demonstrating TMK’s unique therapeutic potential and providing a robust foundation for its clinical application in DKD management.
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Tumor Image Segmentation: A Bibliometric Analysis from 2003 to Now
Authors: Zhenghao Chen, Zhongqing Wang and He MaAvailable online: 19 March 2025More LessBackgroundBibliometrics has been applied to the study of tumor image segmentation, which can indicate the current research hotspots and trends.
MethodsIn this study, bibliometric analyses were performed on data retrieved from the Web of Science database. A total of 3,377 articles on the application of tumor image segmentation from January 1, 2003, to October 9, 2024, were analyzed for the characteristics of the articles, including the number of yearly publications, country/region, institution, journal, author, keywords, and references. Visualising co-authorship, co-citation, and co-occurrence analysis with VOSviewer.
ResultsThe annual publication volume of tumor image segmentation literature shows that from the first time of more than 100 articles in 2016, the publication volume of literature in this field has surged, reaching 576 articles by 2023. Mainland China is ranked first in terms of publication volume (n=1,356). Saudi Arabia ranks first in average publication year (n=2021.96). IEEE Transactions on Medical Imaging was the journal with the highest average number of citations. The Chinese Academy of Sciences (n=78) was the most prolific institution, while Harvard University was the most prestigious, with a total number of citations and an average number of citations of 3,190 and 213, respectively. In terms of keywords, co-occurrence analysis of 107 keywords with a frequency of more than 30 times produced four clusters: (1) methods of image segmentation, (2) applications of image segmentation, (3) image segmentation modelled on CT, (4) image segmentation modelled on MRI. Transformer, Attention Mechanism, and U-Net are the latest keywords. The analysis of keywords helps scholars understand and identify the current research hotspots and research directions.
ConclusionWithin the last 20 years, the number of articles on the application of tumor image segmentation has increased steadily. From U-Net to MAMBA, many methods for tumor image segmentation have been proposed, and the limitations of models and algorithms are becoming increasingly smaller, which demonstrates the importance of advances in tumor image segmentation technology for disease prevention and monitoring. It presents a strong connection between countries/regions and authors, which reflects the global interest and labelport for the development of this field. This study shows global trends, research hotspots, and emerging topics in this field and reviews some of the knowledge about tumor image segmentation applications from past studies. And it will provide good research guidelines for researchers in this field.
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Recent Advancements in Nanoparticles-based Approaches for the Theranostics of Glioblastoma Multiforme
Authors: Jugal Mandan and Abhishek KanugoAvailable online: 18 March 2025More LessOne of the deadliest and most challenging tumors in the body is Glioblastoma Multiforme (GBM). The Most aggressive kinds of brain tumors pose multiple challenges in their treatment due to several barriers (BBB and BCSF). Conventional treatments show poor efficacy in the treatment owing to poor penetrability through the blood-brain barrier and extreme toxicity in the brain. Moreover, the prognosis and diagnosis of GBM are critical, as they can lead to a fatal outcome.The current state-of-the-art review emphasizes the novel theranostic nanoparticles, which are significantly effective in treating the GBM. The most effective nanocarriers are lipid-based (Liposomes, Solid lipid nanoparticles, nanostructured lipid carrier, nanoemulsion), polymeric (polymeric micelles, dendrimers, quantum dots, exosomes, and hydrogels), metallic (Gold, Silver, Platinum), inorganic (iron oxide, mesoporous silica, copper oxide, boron oxide, Gadolinium, Selenium, and Zinc oxide NPs), carbon-based (Carbon nanotubes and graphene oxide) and others (protein-based NPs, Cubosomes, Polymersosomes). These nanoparticle-loaded antitumor agents show good penetration across the barriers and improve survival rates compared to conventional ones. Lipid-based nanoparticles are preferred for providing high biocompatibility, biodegradability, and sustained release action. Polymeric nanocarriers are preferred for facilitating long-acting therapy, and patient comfort, mostly for their biosensing features. Carbon-based nanomaterials are gaining interest for their theranostic action. The most promising outcomes in clinical practices are shown in Liposomes, PLGA-based NPs, Gold NPs, hydrogels, iron oxide NPs, albumin-based NPs, etc.
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Construction and Validation of T‐cell Exhaustion‐related Gene Signature for Predicting Prognosis in Diffuse Large B-cell Lymphoma
Authors: Lixin Lv, Jie Zhou and Aibin LiangAvailable online: 18 March 2025More LessBackgroundT-cell exhaustion (TEX) is one reason for immunotherapy resistance among cancers, but the specific mechanism and influencing factors of TEX in diffuse large B-cell lymphoma (DLBCL) are not fully understood. This study aimed to establish a TEX signature for predicting the prognosis of DLBCL and investigate the immune characteristics related to the TEX signature.
MethodsThe gene expression data of DLBCL were obtained from The Cancer Genome Atlas and Gene Expression Omnibus databases. Prognostic TEX related genes were selected by Cox regression analysis for prognostic signature (TEX score) construction. The correlation of risk grouping with immune cell infiltration was analyzed by CIBERSORT and ssGSEA. Molecular mechanisms between high and low TEX score groups were explored by gene set enrichment analysis (GSEA).
ResultsA total of 115 differentially expressed TEX-related genes were selected, and 12 were prognosis-related after Cox regression. Following Ninesignature genes, including TRIM6, BIRC3, CTSC, GBP3, IRF3, TRIM22, IFI30, TRIM25 and BAG4 were identified to construct a TEX score. The receiver operator characteristic curve curves suggested that the model presented high predictive precision. A nomogram was established, which also had good prediction performance in survival prognosis. The composition of immune cells in the two risk groups was significantly different. GSEA identified 33 hallmarks between two risk groups, which were associated with immune cells infiltration and inflammation.
ConclusionThe TEX score has prognosis-predicting value for DLBCL and might be a valuable biomarker to guide clinical decision‐making for patients with DLBCL.
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Progress and Application of Multifunctional Ultrasound Theranostic Agents
Authors: Kejing Fang, Jincan Lei, Yi Zhao, Yujie Feng, Haiyun Huang and Changjun HouAvailable online: 07 March 2025More LessUltrasound is an indispensable technology in the biomedical field. With the continuous integration and development of ultrasound medical technology, its potential application value in disease diagnosis and treatment has become increasingly prominent. As the technical core, novel multifunctional ultrasound theranostic agents have been the main focus of research. Here, we summarized various types of multifunctional ultrasound agents, presented their latest applications in important areas, and discussed subsequent research priorities. We hope that with the combination of new technologies, multifunctional ultrasound agents can play a greater role in the diagnosis and treatment of diseases, further promoting the extensive and in-depth development of ultrasound medical technology.
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In-vitro, In-vivo and Molecular Docking Studies on Dietary Supplement Containing Polar and Non-polar fractions of Persea Americana for Management of Diet-related Chronic Diseases
Authors: Doha A. Mohamed, Gamil Ibrahim, Hoda B. Mabrok and Ibrahim HamedAvailable online: 05 March 2025More LessBackgroundDiet-related chronic diseases, such as cardiovascular diseases, obesity, diabetes, autoimmune diseases and cancer, are largely preventable with a healthy diet and lifestyle. Therefore, searching for dietary supplements rich in antioxidant and anti-inflammatory phytochemicals for the prevention and/or management of diet-related chronic diseases is an important strategy for controlling these diseases to reduce healthcare costs and sustain development.
ObjectiveThe aim of the current research was to prepare dietary supplements from avocado fruit pulp [AFPDS] and evaluate their potential against various diet-related chronic diseases through in-vitro , in-vivo , and molecular docking studies.
MethodsVolatile compounds of avocado pulp were evaluated, and the total phenolic compounds, fatty acids, and phytosterols profiles of the AFPDS were determined.
ResultsD-limonene, methyl propanoate, isobutyl propanoate and pentanol were the principal volatile compounds in the avocado pulp. Total phenolic and flavonoids were present in the AFPDS by 9.65 mg GAE/g and 6.87 mg CE/g, respectively. Chlorogenic acid and cinnamic acid were the major and minor identified phenolic compounds in AFPDS, respectively. Oleic acid [75.06%] and β-Sitosterol [2.19%] were the highest fatty acid and phytosterol present in AFPDS, respectively. AFPDS recorded anti-inflammatory activity against nitric oxide [NO] production in RAW264.7 macrophages by 98.2µg/ml [IC50] and 164.8µg/ml [IC90]. AFPDS showed significant anti-inflammatory activity against carrageenan-induced rat paw edema. AFPDS showed antioxidant activity against DPPH and ABTS by 8.67 mg TE/g and 6.14 mg TE/g. AFPDS possessed anti-cancer activity against MCF7 and HPG2 at10.8µg/ml and 40.5µg/ml, respectively. AFPDS exhibited anti-diabetic activity as an inhibitor of α-amylase and α-glucosidase by26.35±0.77μg/ml and 0.55±0.163mg/ml, respectively. Molecular docking studies revealed high binding affinity of different active compounds present in AFPDS with cyclooxygenase-2, glutathione peroxidase, α-glucosidase and B-cell lymphoma-extra-large proteins.
ConclusionAFPDS can be considered a new agent for the prevention and treatment of diet-related chronic diseases, such as diabetes and cancer, due to its anti-inflammatory, antioxidant, anticancer, and anti-diabetic activities, as demonstrated through in-vivo , in-vitro , and molecular docking studies.
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In vitro Antibiofilm Activity-directed In silico Identification of Natural Products Targeting Bacterial Biofilm Regulators SarA and LasR
Available online: 18 February 2025More LessBackgroundAntibiofilm agents serve as an essential tool in the fight against antibiotic resistance, and natural products provide a promising source for potential drug leads.
ObjectiveThis study investigates the activity of twenty Bangladeshi medicinal plants against Staphylococcus aureus and Pseudomonas aeruginosa biofilms and predicts the interactions of selected phytochemicals from five of the best performing plants with the active sites of transcriptional regulatory proteins SarA of S. aureus and LasR of P. aeruginosa.
MethodsThe plant extracts were tested by microtiter plate-based assay against S. aureus and P. aeruginosa biofilms. Molecular docking and molecular dynamics simulation (MD) were conducted using PyRx and GROMACS, respectively.
ResultsThe best activity was identified for Cassia fistula and Ananas comosus, showing ≥ 75% inhibition of biofilm formation. ent-Epicatechin-(4α→8)-epiafzelechin (EEE) of C. fistula, cyanidin-3,3',5-tri-O-β-D-glucopyranoside (CTG) of A. comosus, and 7-O-(4-hydroxy-E-cinnamoyl)-spinoside of A. spinosus showed the best predictive binding affinity (-7.6, -7.6 and -7.7 kcal/mol, respectively) for SarA. EEE was the only ligand to exhibit a stable ligand-protein complex with SarA in the MD simulation of 200 ns (binding energy of MMPBSA analysis -39.899 kJ/mol). Chrysophanol, epicatechin and physcion, of C. fistula (-10.5, -10.5, and -11.0 kcal/mol, respectively) and auraptene of F. limonia (-10.8 kcal/mol) showed the best predictive binding affinity for LasR. Epicatechin showed the most stable ligand-protein complex with LasR (binding energy of MMPBSA analysis -63.717 kJ/mol).
ConclusionEpicatechin and its derivative EEE could be used as scaffolds for the development of new antibiofilm agents against P. aeruginosa and S. aureus, respectively.
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The Role of Immunosenescence and Inflammaging in the Susceptibility of Older Adults to SARS-CoV-2 Infection
Available online: 13 February 2025More LessCOVID-19 is an ongoing pandemic caused by the SARS-CoV-2 coronavirus that is one of the most significant challenges to public health over the past few years. Most people are vulnerable to SARS-CoV-2, but older adults are more vulnerable. Aging is one of the major risk factors for the detrimental consequences of COVID-19, likely due to chronic inflammation and immunosenescence, both of which are the characteristics of old age. Immunosenescence refers to the weakening of the immune system with age while inflammaging describes the low-grade chronic inflammation seen in older individuals. One key aspect of human aging is immune deficiency. During aging, our body’s defense system weakens, resulting in decreased responses to infection by novel pathogens and a reduced ability to become immunized. The presence of chronic inflammation and viral infection in old age may cause several adverse unpredictable outcomes increasing the propensity and severity of the disease and requires to be considered, enabling people to better prepare for the potential consequences of this ongoing pandemic. This requires consideration so that individuals can better be prepared to address the potential consequences of this ongoing pandemic. In this review, we discuss the clinical characteristics of elderly COVID-19 patients and survey the associated molecular pathways that are pivotal for the interactions of the coronavirus and host cellular responses, including immunosenescence, inflammation, telomere attrition, impaired autophagy, mitochondrial dysfunction and alterations in major aging signaling pathways, which are crucial for the discovery of new therapeutic and preventive methods in the ongoing pandemic.
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Research on Neuroimmune Gastrointestinal Diseases Based on Artificial Intelligence: Molecular Dynamics Analysis of Caffeine and DRD3 Protein
Authors: Yi Qin, Shuran Huo, Ana María González, Lizhong Guo, Javier Sanots and Liangyu LiAvailable online: 04 February 2025More LessObjectiveThe aim of this study was to develop a clinical application model for the rational use of caffeine.
BackgroundCaffeine is related to the incidence of neuro immune gastrointestinal diseases. Coffee consumption needs to be optimized in order to reduce the incidence rate.
PurposeBy using KEEG analysis to explore potential molecular signaling pathways involved in the progression of neurological immune gastrointestinal diseases, and analyzing the details of this signaling Pathway using molecular simulation results, which can support AI system for doctor.
MethodThe research team designed a controlled experiment to analyze the differences in reward and reinforcement of Brain pleasure/addiction and dopamine related signaling pathways function between multiple groups of people with different coffee drinking habits and a blank control group. The study team used molecular dynamics methods to investigate the signaling route that links coffee with the binding of dopamine receptor D3.AI is used to predict the prevalence of gastric reflux disease.
ResultHuman experiments have shown a correlation between caffeine intake and gastroesophageal reflux disease. AI algorithm results can provide clinical support, and molecular simulation results are consistent with human experimental results. Caffeine and DRD3 protein have a stable interaction system.
ConclusionThe research team elucidated the intermolecular interaction between caffeine and DRD3, and AI algorithms can predict the likelihood of disease occurrence, providing a new strategy for clinical practice. This study has passed ethical approval at Chifeng Cancer Hospital, and the ethical documents for this study have been submitted to the World Health Organization for filing.
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HYQTD Drug-containing Serum Alleviates H2O2-induced Endothelial Oxidative Damage by Increasing Mitochondrial ATP Synthesis and Inhibiting ROS
Authors: Jin Wu, Lijuan Chen, Ying Du, Xue Leng, Dongchao Yuan, Mingqian Yang, Yeyu Zhao, Bin Lv and Lianqun JiaAvailable online: 27 January 2025More LessBackgroundAtherosclerosis (AS) is caused by the endothelium injury associated with oxidative stress. Previous studies have shown that the Phlegm-Eliminating and Stasis-Transforming Decoction (Huayu Qutan Decoction, HYQTD) has mitochondrial protective function. The objective of this research was to explore how HYQTD drug-containing serum (HYQTD-DS) could potentially protect mitochondrial energy production in endothelial cells (ECs) from injury caused by hydrogen peroxide (H2O2)-induced oxidative damage in AS through SIRT1/PGC-1α/ Nrf2 pathway.
MethodsAfter preparation of containing serum, the cells were divided into various categories, such as control group, H2O2 group (an oxidative damage model), HYQTD group, Selisistat (EX527, a SIRT1 inhibitor) combined with H2O2 group, and EX527 combined with HYQTD group. The evaluation of oxidative stress involved measuring reactive oxygen species (ROS) and malondialdehyde (MDA) generation, as well as Superoxide Dismutase (SOD) activity. Mitochondrial function and ultrastructure were measured by Transmission electron microscopy (TEM), mitochondrial membrane potential (MMP), rate of oxygen consumption (OCR), respiratory chain complex activities, and ATP production. The key proteins and gene levels in the SIRT1/PGC-1α/Nrf2 pathway was quantified by quantitative real-time PCR (RT-PCR) and Western blotting analysis.
ResultsWe found oxidative stress, mitochondrial damage, and mitochondrial energy disorder in H2O2-induced ECs. However it indicated a marked reversal after pretreated with HYQTD-DS. Mechanistically, EX527 induced increased oxidative stress, worse mitochondrial dysfunction, and less ATP synthesis.
ConclusionWe demonstrated that HYQTD-DS attenuated oxidative stress, improved mitochondrial function, and up-regulated mitochondrial ATP synthesis by activating SIRT1/PGC-1α/Nrf2 pathway-induced mitochondrial biogenesis and its downstream NADH dehydrogenase (ubiquinone) flavoprotein 2 (NDV2).
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Harmony in Motion: The Role of Exercise in Orchestrating Neuroprotection for Individuals with Alzheimer's Disease and Diabetes Examined from a Psychological Perspective
Authors: Dongzi Zhang, Munir Ullah Khan and Safir UllahAvailable online: 24 January 2025More LessAccording to epidemiological studies, diabetes is more common in patients with AD, which suggests that diabetes is a significant risk factor for AD. Accelerating brain cell degeneration, worsening cognitive decline, and increasing susceptibility to AD can be attributed to pathogenic mechanisms linked to diabetes, such as impaired insulin signaling in the brain, neuroinflammation, oxidative stress, mitochondrial dysfunction, and vascular impairment. These factors can also lead to the accumulation of β-amyloid and tau protein phosphorylation. New research suggests that certain drugs used to manage diabetes have different levels of effectiveness in treating or preventing Alzheimer's disease. Exercise has numerous advantages, including the reduction of neuroinflammation, alleviation of oxidative stress and mitochondrial dysfunction, improvement of endothelial and cerebrovascular function, stimulation of neurogenesis, and prevention of pathological changes associated with diabetes-related Alzheimer's disease through various internal mechanisms. This study examined the development of Alzheimer's disease (AD) in relation to diabetes, evaluated the ability of specific antidiabetic drugs to prevent and treat AD, and investigated the impacts and underlying processes of exercise interventions in improving AD treatment for individuals with diabetes.
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A Therapeutic Approach of Chitosan-loaded p-Coumaric Acid Nanoparticles to Alleviate Diabetic Nephropathy in Wister Rats
Available online: 23 January 2025More LessObjectiveThis study evaluated the renoprotective effects of p-Coumaric acid nanoparticles (PCNPs) in nephropathic rats.
MethodsSix groups of male Albino Wistar rats were randomly assigned. Group 1 was the control, while Group 2 received 45 mg/kg of streptozotocin (STZ) to induce diabetic nephropathy. Groups 3, 4, and 5 received STZ (45 mg/kg) along with PCNPs at doses of 20, 40, and 80 mg/kg, respectively. Group 6 received 80 mg/kg of PCNPs without STZ. Body weight, blood glucose, insulin, hemoglobin (Hb), and glycosylated hemoglobin (HbA1c) levels were measured. Blood urea, serum creatinine, kidney antioxidant enzymes, and lipid peroxidation levels were also analyzed. Histological and immunohistochemical studies of kidney tissues were performed.
ResultsPCNPs (80 mg/kg) significantly reduced serum glucose, creatinine, and urea levels while increasing insulin levels and antioxidant activity in the kidneys. Histological analysis revealed that nephropathic rats exhibited cellular damage, including shrinkage of Bowman’s capsule and lesions in the kidneys, along with degeneration in the Islets of Langerhans in the pancreas. PCNPs treatment restored these morphological alterations in the pancreas, liver, and kidneys to near-normal. Furthermore, nephropathic rats had elevated IL-6 and TNF-α expression in the renal tubules and glomeruli, which was reduced following PCNPs treatment.
ConclusionThe findings suggest that PCNPs exhibit antihyperglycemic, antioxidant, anti-glycation, and renoprotective effects in STZ-induced diabetic nephropathy.
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A Fed-batch Process for the Production of Recombinant Adeno-Associated Virus (rAAV) Vectors Using the Sf9-Rhabdovirus-Negative Cell Line
Authors: Xinran Li, Jieyi Gu, Haoquan Wu and Yuanyuan XieAvailable online: 23 January 2025More LessBackgroundGene therapy has been effectively applied in many biological studies and for the treatment of many genetic or cancer diseases. Currently Recombinant Adeno-Associated Viruses (rAAVs) are one of the main types of delivery vectors used for gene therapy. rAAV vectors produced via the Sf9 cells have the advantages of high rAAV yields easy scale-up and low cost.
MethodHere we used Sf9 rhabdovirus-negative (Sf9-RVN) cells to validate and optimize the rAAV production process and the fed-batch process increased the rAAV production titre.
ResultsIn the fed-batch procedure the cell density reached 12.9×106 cells/mL which was approximately twice as high as in the batch culture process. The rAAV titre was also approximately 8-fold higher in the fed-batch process reaching 1.5×1012 VG/mL. The optimized process was validated by generating rAAVs with various serotypes and genes of interest (GOI) all of which gave production titres greater than 1×1012 VG/mL.
ConclusionWe used Sf9-RVN cells to develop a fed-batch rAAV production process that replaces Sf9 cells to meet regulatory standards. This process has good applicability and the rAAV titre can reach at least 1×1012 VG/mL which is higher than the level of 1011 VG/mL reported in the literature.
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Integrative Bioinformatics and Experimental Validation Reveal the Mechanistic Action of Patchouli Alcohol in Prostate Cancer Treatment
Authors: Songhui Zhai, Juan Zhao and Jian CaiAvailable online: 22 January 2025More LessIntroductionProstate cancer is an androgen-dependent malignancy, and the use of androgen deprivation therapies frequently results in treatment resistance, relapse, and the development of aggressive castration-resistant tumors. Patchouli alcohol, a tricyclic sesquiterpene derived from Pogostemon cablin of the Labiatae family, has demonstrated potential in modulating inflammatory responses and tumor progression. This study aimed to investigate the mechanisms through which patchouli alcohol influences inflammatory pathways associated with prostate cancer using bioinformatics and experimental validation.
MethodsDifferentially Expressed Genes (DEGs) were identified from the GSE46602 dataset, containing 36 prostate cancer and 14 normal prostate biopsy samples, using the GEO2R tool (adjusted P < 0.05). Functional annotation was performed using GO and KEGG databases, while PPI networks were constructed via STRING and Cytoscape. Key hub genes were identified. To validate the bioinformatics findings, qPCR and Western blotting were employed to confirm the differential expression of selected hub genes in DU145 prostate cancer cells treated with patchouli oil.
ResultsBioinformatic analysis revealed 71 DEGs, including 35 upregulated and 36 downregulated genes. Thirteen hub genes were identified (DCK, APRT, ADK, KCNK9, ADSL, PKM, KCNK3, S100A10, ENTPD2, PKLR, ARHGEF38, TPK1, and AK5), which were enriched in pathways, such as MAPK, PI3K-Akt, Ras, and Rap1. Experimental validation confirmed the upregulation of DCK, APRT, KCNK9, ADSL, PKM, S100A10, ENTPD2, PKLR, ARHGEF38, and AK5, and the downregulation of ADK, KCNK3, and TPK1 at both the mRNA and protein levels.
ConclusionPatchouli alcohol appears to influence multiple hub genes associated with prostate cancer progression through its modulation of key cellular signaling and metabolic pathways. These findings support its potential role as a therapeutic agent for prostate cancer.
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Identifying Novel Therapeutic Opportunities for Dilated Cardiomyopathy: A Bioinformatics Approach to Drug Repositioning and Herbal Medicine Prediction
Authors: Jiao Wang, Tianwei Meng, Na Si, Haihong Li, Yan Yan and Xinghua LiAvailable online: 15 January 2025More LessBackgroundDilated Cardiomyopathy (DCM) is a debilitating cardiovascular disorder that challenges current therapeutic strategies. The exploration of novel drug repositioning opportunities through gene expression analysis offers a promising avenue for discovering effective treatments.
ObjectiveThis study aims to identify potential drug repositioning opportunities and lead compounds for DCM treatment by optimizing gene expression characteristics using published data.
MethodsOur approach involved analyzing DCM expression profiles from the Gene Expression Omnibus database and identifying differentially expressed genes with GEO2R. A protein interaction network was constructed using the STRING database and visualized with Cytoscape. Enrichment analyses were conducted on these genes through the Omicshare platform, followed by the identification of candidate compounds via the Connectivity Map (CMAP) and validation through molecular docking. The Coremine Medical database was utilized to predict potential herbal medicines.
ResultsWe identified 29 differentially expressed genes, highlighting MYH6, NPPA, and NPPB as central to DCM pathology. Enrichment analyses indicated significant impacts on biological processes, such as organ morphogenesis and inflammatory responses. The AGE-RAGE signaling pathway was notably affected. From over 6,100 compounds analyzed, tenoxicam emerged as a promising candidate, with Radix Salviae Miltiorrhizae (Danshen) being suggested as a potential herbal treatment.
ConclusionThis study underscores the utility of bioinformatics in uncovering new therapeutic candidates for DCM, offering a foundational step towards novel drug development.
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