Current Medicinal Chemistry - Online First
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181 - 200 of 204 results
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The Role of MicroRNAs in Mitochondrial Homeostasis and their Involvement in the Pathogenesis of Obesity and Metabolic Syndrome: A Focus on MicroRNAs
Available online: 07 March 2025More LessThe maintenance of the functional potential of mitochondria is directly related to epigenetic factors, microRNAs (miRs), and mitomicroRNAs (mitomiRs). An important role in the development of metabolic syndrome (MetS)/obesity is attributed to miRs, which have pro-inflammatory or anti-inflammatory potential and can penetrate the mitochondrial matrix. Deciphering the mechanisms responsible for the transport of miRs into the mitochondria would, we believe, allow us to use the knowledge obtained to build designs for the transport of drugs/mitomiRs into cells/mitochondria with low toxicity. A thorough understanding of the polyfunctionality/versatility of individual mitomiRs in specific cells (cell cultures, tissues: adipocytes, brain cells) will allow targeting cellular metabolism to comprehensively block the central link in disease pathogenesis with low potential side effects of this treatment. In this review, we have attempted to identify the key miRs/mitomiRs associated with MetS that affect mitochondrial function. In our opinion, further research should focus specifically on the miR/mitomiRs described here and further investigate their potential in the development of MetS and its components.
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Development of an Inflammation-related Gene-based Diagnostic Risk Model and Immune Infiltration Analysis in Bipolar Disorder
Available online: 05 March 2025More LessObjectiveThis study aimed to construct a diagnostic risk model for Bipolar Disorder (BD) using inflammation-related genes (IRGs) and to explore the role of immune cell infiltration in BD pathogenesis.
MethodsBD datasets (GSE23848, GSE124326, GSE39653, and GSE46449) were retrieved from the Gene Expression Omnibus (GEO) database. Differentially expressed genes (DEGs) were identified using the edgeR package. The intersection of DEGs and IRGs was defined as differentially expressed IRGs. A LASSO regression model was used to identify optimal biomarkers, which were then utilized to construct a diagnostic risk model. Receiver operating characteristic (ROC) curves were used to evaluate the diagnostic accuracy of the biomarkers. Internal validation was performed with GSE124326, while external validation utilized GSE23848, GSE39653, and GSE46449. The xCell module in the IOBR package was employed to assess immune cell infiltration proportions. The relationship between IRGs, the diagnostic risk model, and immune cell dynamics was further analyzed.
ResultsA total of 2345 DEGs were identified in GSE124326. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses indicated that inflammatory pathways are critically involved in BD pathogenesis. A total of 69 BD-related IRGs were identified. Six key IRGs (IL33, DNASE1L3, IL2RA, CD70, CLEC5A, and SLPI) were identified through LASSO regression analysis and used to develop a diagnostic risk model. Internal and external validations confirmed the robust diagnostic performance of the risk model. Immuno-infiltration analysis showed significant differences in immune cell infiltration between BD patients and healthy controls. The diagnostic risk model and four potential biomarkers (DNASE1L3, IL2RA, CD70, and SLPI) showed strong correlations with various immune cell types.
ConclusionA diagnostic risk model for BD was constructed based on IRGs, highlighting the critical role of immune cell infiltration in BD pathogenesis.
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HER3-targeting Antibody-drug Conjugates Therapy for Solid Tumors: Recent Advances and Future Potentials
Authors: Xuerui Wang, Linlin Zhao, Fangfang Gao, Yuan Meng, Jie Yang, Meiying Zhu, Dongying Liao, Yingjie Jia and Fanming KongAvailable online: 24 February 2025More LessIn most advanced cancers, standard medical treatments are generally employed. With the emergence of Antibody-Drug Conjugates (ADCs), more optimal therapeutic methods have become available for treating tumors. ADC is composed of a monoclonal antibody that targets a specific antigen and a cytotoxic payload, which conjugates via the synthetic linkers. Therefore, ADC combines the accurate targeting of monoclonal antibodies with the potent efficacy of cytotoxic chemotherapy drugs while circumventing systemic toxicity. Besides, the epidermal growth factor receptor (EGFR) family, expressing differently between tumors and normal tissues, is one of the most frequently targeted antigens for ADC therapy, which mainly encompasses EGFR1/ERBB1, human epidermal growth factor receptor 2/ epidermal growth factor receptor 2 (HER2/ERBB2), HER3/ERBB3, and HER4/ERBB4. In contrast to other targets, HER3 stands out as a promising one, closely associated with the pathogenesis of treatment resistance in several cancers. Moreover, solid tumors, which are more prevalent than hematological malignancies, present a vast field of opportunities for the development of HER3-targeting ADCs. However, research on HER3-targeting ADCs treating solid tumors remains insufficient. Therefore, it is imperative for researchers to gather more clinical trial data and continue to elucidate the efficacy and safety of HER3-ADCs in solid tumors. This review summarizes recent advances and future potentials, aiming to provide insights into targeted therapy. We hope that this review will provide useful information to physicians in the field.
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DDX59-AS1: A Novel Prognostic Biomarker and Immunotherapy Predictor in Lung Adenocarcinoma
Authors: Yanli Wang, Wei Li, Su Wei, Lixi Zhang, Dongbing Li and Xu QiAvailable online: 18 February 2025More LessBackgroundThe precise function of DDX59 Antisense RNA 1 (DDX59-AS1) in lung adenocarcinoma (LUAD) has yet to be fully elucidated.
ObjectiveThis study uses bioinformatics analysis and experimental validation to investigate the association between DDX59-AS1 and LUAD.
MethodsThis study uses statistical analysis and database interrogation to investigate the potential association between DDX59-AS1 expression and various clinical characteristics, prognostic factors, regulatory networks, and immune infiltration in LUAD. The quantification of DDX59-AS1 expression in LUAD cell lines is conducted through the use of quantitative real-time polymerase chain reaction (qRT-PCR).
ResultsDDX59-AS1 showed significantly elevated levels of expression in patients with LUAD. High levels of DDX59-AS1 expression were found to be significantly associated with poorer overall survival (OS) in patients with LUAD (p = 0.024). Furthermore, an independent correlation was observed between high DDX59-AS1 expression (p = 0.037) and OS in LUAD patients. DDX59-AS1 was found to be involved in various pathways, including glutathione metabolism, proteasome function, and the cytosolic DNA sensing pathway, among others. A significant correlation was observed between the expression levels of DDX59-AS1 and immune cell infiltration in the context of LUAD. Notably, elevated expression of DDX59-AS1 was observed in LUAD cell lines compared to the non-cancerous Beas-2B cell line.
ConclusionA significant correlation was observed between elevated DDX59-AS1 expression in patients with LUAD and adverse prognosis, alongside increased immune infiltration. These results indicate that DDX59-AS1 may function as a prognostic marker for LUAD and a potential predictor of immunotherapy response.
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The Pathophysiological Role of Mitochondria-associated Membranes in Coronary Artery Disease and Atherosclerosis
Authors: Junyan Zhang, Zhongxiu Chen, Li Rao and Yong HeAvailable online: 12 February 2025More LessMitochondria-associated membranes (MAMs) are pivotal in cellular homeostasis, mediating communication between the endoplasmic reticulum and mitochondria. They are increasingly recognized for their role in atherosclerosis and coronary artery disease (CAD). This review delves into the cellular perspective of MAMs' impact on atherosclerosis and CAD, highlighting their influence on disease progression and the potential for therapeutic intervention. MAMs are implicated in key pathophysiological processes such as the generation of reactive oxygen species, calcium homeostasis, myocardial ischemia-reperfusion injury, autophagy, lipid synthesis and transport, and energy metabolism—fundamental to the development and progression of atherosclerosis and CAD. The complex interplay of MAMs with these pathological processes underscores their potential as therapeutic targets. This review synthesizes current understanding and emphasizes the need for further research to elucidate the multifaceted roles of MAMs in atherosclerosis and CAD, offering avenues for developing novel strategies aimed at improving mitochondrial health and mitigating the impact of these conditions.
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The Role and Molecular Mechanism of Icaritin in the Treatment of Alzheimer's Disease
Authors: Chong-Bo Zheng, Li-Zhen Wu, Wan-Ying Song, Liang Luo, Jia-Ting Cai, Zhi-Hua Huang and Ke-Qiang TianAvailable online: 07 February 2025More LessAlzheimer's disease (AD), a degenerative disease of the central nervous system, affects approximately 70 million individuals worldwide. As the number of elderly in the population increases, the prevalence and incidence of AD are increasing annually. Although the drugs are currently used to alleviate certain cognitive symptoms, their overall therapeutic efficacy remains unclear. Consequently, there is significant societal demand for safe and effective therapeutic options. Icaritin (ICT), a bioactive compound derived from Epimedium brevicornu Maxim, has anti-apoptotic, antioxidant, anti-neuroinflammatory, anti-aging, and neuroprotective properties. In recent years, it has garnered significant interest because of its potential preventative and therapeutic effects in the context of AD. In this review, we analyze the therapeutic effects of ICT on AD, namely the inhibition of neuroinflammation, effects against oxidative stress and apoptosis, and promotion of cellular autophagy. The aim of this review was to provide a general reference for the research and development of new drugs, in particular ICT, for the prevention and treatment of AD.
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Achievements and Approaches in the Search for Small-Molecule Dengue NS2B/NS3 Inhibitors
Available online: 27 January 2025More LessWith the escalation of viral infections in recent decades, including the COVID-19 pandemic, viral infectious diseases have increasingly become a global concern, attracting significant attention. Among many viral epidemics, the dengue virus, an RNA virus from the Flaviviridae family, has been reported by the WHO as one of the most prevalent mosquito-borne diseases, infecting roughly 400 million people yearly and spreading across all continents worldwide. In the last two decades, researchers from academia and industry have diligently studied many aspects of the virus, including its structure, life cycle, potential therapeutic agents, and vaccines. Dengvaxia® and Qdenga®, approved vaccines for DENV-4, have been a milestone in dengue prevention and treatment. However, these vaccines have some noticeable drawbacks, including Dengvaxia® being a monovalent vaccine against DENV-4 with a risk of severe dengue infection following the first use, Qdenga® being mainly effective for all 4 serotypes only in the cases of previously infected patients while being effective against only DENV-1 and DENV-2 in dengue-naïve patients. Additionally, no drug against dengue has been approved. Thus, numerous screening campaigns have been conducted on both natural and synthesized substances to search for anti-dengue agents, especially those affing the virus's key protease (NS2B/NS3), to mitigate the dengue fever epidemic. As hit screening is only the first step in the drug discovery and development cycle, subsequent in-depth analyses (using a wide range of approaches from computational simulations to protein-ligand co-crystallization) have been conducted to provide more insights into the characteristics of optimal DENV NS2B/NS3 protease inhibitors. This review discusses recent discoveries in the search for novel inhibitors and highlights the importance of understanding the structural relationship between hits and the NS2B/NS3 protease for effective lead optimization.
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Advanced Pain Management in Patients with Terminal Cancer
Authors: Kamilla Khojayeva, Mina Aubakirova and Dmitriy VidermanAvailable online: 24 January 2025More LessUnderstanding and managing pain in patients with terminal cancer is a vital aspect of palliative care, aimed at relieving suffering and improving quality of life in the final stages of illness. Studies indicate that approximately 50% of patients with stage 4 cancer report moderate to severe pain, with a quarter experiencing severe cancer-related pain. Despite opioid prescriptions in 97% of cases, a significant portion of patients continues to suffer unresolved pain during the last week of life. Cancer-related pain is multifaceted, often involving nociceptive, neuropathic, and mixed elements, necessitating a thorough, multidimensional approach to both assessment and treatment. The challenge of opioid tolerance and the potential for addiction demands careful monitoring. Interventional therapies, including nerve blocks and spinal cord stimulation, are gaining attention as valuable complements or alternatives to opioid use. Additionally, alternative methods like yoga, special diets, and food supplements provide diverse options for managing pain. Psychological therapies, including cognitive-behavioral techniques and mindfulness, address the mental and emotional dimensions of pain. Emerging technologies, including artificial intelligence, hold promise for optimizing pain management in terminal cancer care. This review explores advanced pain management strategies, focusing on traditional opioid therapies, modern pharmaceutical innovations, and non-pharmacological approaches such as alternative medicine, massage, dietary interventions, and psychological therapy.
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Role of Glycolysis and Nitric Oxide Pathway Crosstalk in Macrophages in Atherosclerosis
Available online: 24 January 2025More LessAtherosclerosis is a complex multifactorial process that occurs in the vascular wall over many years and is responsible for a number of major diseases that affect quality of life and prognosis. A growing body of evidence supports the notion that immune mechanisms underlie atherogenesis. Macrophages are considered one of the key participants in atherogenesis, but their role in this process is multifaceted, which is largely due to the peculiarities of their cellular metabolism. Glycolysis is not only an important metabolic pathway in macrophages, but is also associated with their immune functions. Glycolysis in macrophages has complex regulatory pathways and is cross-linked with nitric oxide, which together determine the immune function of these cells. Thus, the immune and metabolic links underlying atherogenesis are of research and clinical interest in terms of their potential therapeutic opportunities.
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Recent Progress in Curcumin: Extraction, Purification, and Bioactivity
Authors: Hong-Mei Cao, Pei-Hong Zhao, Yi-Tao Zhao, Jiao-Jiao Fang, Ya-Nan Wang and Xin ChenAvailable online: 24 January 2025More LessCurcumin is a natural plant pigment that has been widely used in food production, drug development, and textile engineering. Gaining a deep understanding of the biological activities of curcumin and obtaining high-purity curcumin are of vital importance for basic research and applications of curcumin. In this review, we summarize recent advances in curcumin, mainly focusing on the methods of extracting and purifying curcumin from turmeric as well as applications based on biological activity. We systematically describe the advantages and disadvantages of traditional and modern extraction technologies. The usual purification methods include conventional methods (such as macroporous resin column chromatography and silica gel column chromatography, etc.) and auxiliary modern technologies (such as high-speed countercurrent chromatography and supercritical fluid chromatography). In terms of biological activity, the phenolic hydroxy group and methoxy group of curcumin are closely related to its antioxidant activity, endowing it with strong antibacterial, anti-inflammatory, and antitumor properties. Moreover, the development direction based on its multiple biological activities is also discussed.
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Gold Nanoparticles and Chitosan as Innovative Compounds in Medicine and Cosmetology: A Review of Current Applications
Available online: 06 January 2025More LessThe medical and cosmetic industries have developed in recent years, and there has been a growing demand for new materials. Gold nanoparticles (Au NPs) and chitosan (CS) have been known and used for many years. Unfortunately, despite their numerous advantages and possible applications, such materials may possess certain disadvantages and limitations that constitute a problem in medical or cosmetic applications. Au NPs may have potential toxicity depending on their size, shape, charge, surface coatings, and tendency to agglomerate into larger clusters. On the other hand, the CS production process requires strict control due to the possibility of uncontrolled hydrolysis or chemical modifications during polymer isolation. The combination of Au NPs and CS that differ in chemical and phase in one composite (Au NPs/CS) allows for acquiring of new material with many advantages. The obtained composite has good mechanical properties and is biocompatible due to the presence of CS and the antibacterial properties of Au NPs. Therefore, it can be successfully used in many branches of medicine, including gene delivery, cell encapsulation, wound healing process, or as a preservative ingredient of cosmetics. Moreover, Au/CS nanocomposites are used in the food industry and environmental protection. This review highlights the preparation routes, properties, and applications of Au NPs and CS as separate materials. Moreover, the last part presents the advantages of combining these two materials into one nanocomposite. Specifically, we described the role of CS in the synthesis of Au NPs and possible subsequent applications of such nanomaterials as an element of biosensors, scaffolds, and an intelligent drug release system or tissue engineering.
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Advancements in Structural Basis of Covalent Inhibitors Targeting SARS-CoV-2 Essential Proteins
Available online: 03 January 2025More LessCovalent inhibitors play a pivotal role in the development of pharmaceutical therapies, as they form stable, irreversible bonds with target biomolecules, leading to prolonged therapeutic effects and enhanced efficacy. Since covalent inhibitors first appeared in the late 1800s, the field has become innovative rapidly, and covalent inhibitors now account for around 30% of all marketed therapeutics. The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes the pandemic of Coronavirus Disease 2019 (COVID-19). SARS-CoV-2 needs to be cured with a medicine that is beneficial and with the least side effects. It is necessary to formulate drug candidates to treat this pathogen. The predominance of covalent medications will be briefly discussed in this review, followed by an introduction to their methods of action, as well as more thorough discussions of the safe and effective covalent enzyme inhibitors against SARS-CoV-2. Our main concern is to study covalent inhibitors which are mainly involved in blocking the viral entry of the virus SARS-CoV-2 into the host cell along with its replication and translation process. In the development of anti-SARS-CoV-2 medicines researchers can use those reported drugs as prospective candidates.
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Interaction between microRNA and KRAS in Glioblastoma
Available online: 03 January 2025More LessGlioblastoma (GBM) characterized byits rapid progression and challenging prognosis, often featuring mutations in the Kirsten rat sarcoma virus (KRAS) gene, which is crucial for numerous cellular signaling mechanisms. Emerging research underscores a significant interaction between KRAS and microRNAs (miRNAs) in these cancers, with miRNAs playing key roles as both regulators and mediators within the KRAS signaling framework. The concept of oncogene-induced senescence (OIS) is explored as a protective mechanism against tumor development, examining how K-RAS signaling is meticulously adjusted to bypass senescence, thereby enhancing cell growth and survival. In this study, we identify certain miRNAs that directly impact KRAS through mRNA targeting or by influencing its downstream signaling cascades. In turn, pathways activated by KRAS can modify the levels of specific miRNAs, establishing a feedback loop that balances cell regulation and tumor progression. We propose a theoretical framework where these interactions are crucial for deciphering the molecular underpinnings of GBM, potentially paving the way for innovative treatment approaches that focus on the miRNA-KRAS connection.
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Anticancer and Cyclooxygenase Inhibitory Activity of Benzylidene Derivatives of Fenobam and its Thio Analogues
Available online: 16 December 2024More LessIntroductionA series of benzylidene derivatives of fenobam and its thio analogues (1-22) have been evaluated for their cytotoxicity against breast cancer (MCF-7, MDA-MB-231), ovarian cancer (A2780, SKOV-3) and cervical cancer (HELA) cell lines.
MethodThese compounds (1-22) exhibited 72-83% inhibition of Erk activity against the ovarian cancer cell line (A2780). Compounds 3 and 20 showed the highest DNA damage effect in Comet Assay against the A2780 cancer cell line as compared to the other tested analogues (4, 8, 11, 12, and 13) by using % Tail DNA and OTM. Compounds 3, 4, and 11 showed significant activities and selectivity towards COX-2 with 78%, 97%, and 89% inhibition, as compared to 17%, 57%, and 26% inhibition against COX-1 isoenzyme, respectively.
ResultsInterestingly, molecular docking scores were also in very good agreement with the experimental results regarding discriminating the selectivity index of the tested compounds against COX-1 & COX-2 enzymes. Further molecular dynamics (MD) simulation study revealed that the most selective compound, 13, binds with the COX-2 enzyme in a similar fashion to that of Rofecoxib, which was further supported by their MD-based free binding energies (MM-GBSA) of -49.76 ± 4.27 kcal/mol, and -44.84 ±3.78 kcal/mol, respectively.
ConclusionMoreover, in silico ADMET predictions showed adequate properties for these compounds, making them promising leads worthy of further optimization.
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The Risk Genes SIRP5, CMC1, and ASAH1 as Potential Targets for the Diagnosis, Immunotherapy, and Treatment of Colon Adenocarcinoma by Single-Cell and Bulk RNA Sequencing Analysis
Authors: Zipeng Xu, Jiantao Gong, Weidong Hu, Chen Ge, Genxi Tong, Fengjun Cai, Zhenghai Zhu, Yihang Yuan and Chaobo ChenAvailable online: 07 November 2024More LessObjectiveGlobally, one of the main causes of cancer-related mortality is Colon Adenocarcinoma (COAD). In this study, a new special Immune Cell Functions (ICF) risk model was constructed using single-cell and bulk RNA sequencing data to develop a new understanding and clinical applications for COAD.
MethodsThe immune function gene sets were downloaded from a literature reference, and the COAD single-cell dataset GSE146771 was downloaded from the Tumour Immune Single Cell Hub database. Using Lasso analysis, a multiple gene signature was made from the enrichment scores of immune function gene sets that were enriched in different ways. Robust validation of the signature was then performed in multiple independent cohorts. After that, we built the model using a 10-fold cross-test and evaluated its independence for clinical usage using a nomogram. We also investigated the connection between signature and immune function, genetic variation, immunotherapy, and the cancer immunological microenvironment. Lastly, we used qPCR and immunohistochemistry to examine the expression of the unreported model genes. To find the regulatory functions of unreported model genes, an EdU assay was employed.
ResultsFirst, 20 differentially enriched immune function gene sets were identified. Ten genes can be used as a risk profile to assess the prognosis of colon cancer, according to Lasso regression analysis. Signature performance was stable in both the training cohort and two independent GEO external cohorts, and risk scores were confirmed as independent prognostic factors. At the same time, our risk model continued to be highly predictive across various clinical clusters and clinical characteristics, such as immune checkpoints, tumour genome mutations, and chemotherapeutic drug resistance. Patients in the low-risk group have exhibited a higher chance of benefiting from immunotherapy, according to immunotherapy response research. qPCR and immunohistochemistry analysis have revealed SIRP5 expression as high in COAD tissues, while CMC1 and ASAH1 expression has been found to be low. According to the findings of the functional experiment, SIRP5, CMC1, and ASAH1 may control the ability of CRC cells to proliferate.
ConclusionIn this study, using scRNA-seq and bulk RNA-seq data, we created a risk model to predict the prognosis and effectiveness of immunotherapy in patients with COAD. In addition, we have discovered three model genes (SIRP5, CMC1, and ASAH1) that have not been reported before. These genes have the potential to be novel therapeutic targets in Colorectal Cancer (CRC). These findings suggest that this model could be used to evaluate the prognostic risk and identify potential targets for COAD patient treatment.
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Genome-wide Association Studies of Diabetic Kidney Disease in East Asians With Type 2 Diabetes: Achievements and Future Perspectives
Available online: 31 October 2024More LessDiabetic kidney disease is a devastating diabetic complication, affecting up to half of people suffering from diabetes. The global burden of diabetic kidney disease is steadily increasing worldwide along with the growing prevalence of type 2 diabetes. The epidemic rise of type 2 diabetes is primarily observed in Asia, including the East Asian regions. It is generally accepted that heredity is one of the main determinants in the pathogenesis of diabetic kidney disease. Since the advent of genome-wide association studies, numerous studies have been published to identify the genetic loci susceptible to diabetic kidney disease among diverse populations. Although genome-wide association studies exploring diabetic kidney disease susceptibility loci have focused primarily on populations of European descent, a number of novel genetic variants associated with diabetic kidney disease have also been successfully revealed among East Asians. A comprehensive analysis of the genetic architecture and pathophysiological pathways of diabetic kidney disease may allow the identification of new potential therapeutic targets. This review aimed to summarize genome-wide association studies examining genetic variants associated with diabetic kidney disease in the populations of East Asian ancestry with type 2 diabetes and presented our perspective on the future of this field.
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Design, Synthesis, Molecular Docking, Pharmacokinetic Properties, and Molecular Dynamics Simulation of Sulfonyl Derivatives of Benzimidazole against Parkinson’s Disease
Available online: 24 October 2024More LessIntroductionThe disability and mortality related to Parkinson's disease (PD), a neurodegenerative disease, are increasing globally at a faster rate than other neurological disorders. With no permanent cure for PD, there is an urgent need to develop novel and effective anti-PD drugs.
MethodTargeting monoamine oxidases (MAO), which catalyze the breakdown of neurotransmitters, is one way to treat neurodegenerative diseases. In this context, an initial molecular docking of twenty designed sulfonyl derivatives of benzimidazole against monoamine oxidase B (MAO-B) associated with PD was conducted using AutoDock Vina.
ResultThe results were compared with those of the conventional inhibitors, selegiline and rasagiline. Based on the docking score, the in-silico pharmacokinetic properties (ADME), drug-likeness, and toxicity profiles of the newly synthesized molecules were examined using SwissADME, PreADMET, ProTox-3.0, vNN, and ADMETlab web tools. Then, twelve potential derivatives were synthesized and characterized by IR, 1H-NMR, 13C-NMR, 19F-NMR (for some compounds), and mass spectrometry. Derivatives 2cj and 1bj were the two molecules having the best binding affinity of -11.9 and -11.8 kcal/mol, respectively, against MAO-B, exhibiting a higher binding affinity compared to that of some commercially available drugs. A 50 ns MD simulation run was performed to observe the stability of the top two docked complexes, MAO-B-2cj and MAO-B-1bj, in order to further validate the efficacy of those two substances. Moreover, the MM-PBSA method was used to calculate the final, binding free energy of the simulated (MAO-B-2cj) complex.
ConclusionThis study indicates that the binding affinity of most of the hits was superior to that of known MAO inhibitors; therefore, these newly synthesized benzimidazole derivatives may be developed into essential drug candidates for the treatment of PD.
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Unraveling the Ferroptosis-inducing Potential of Methanol Leaves Extract of Prosopis Juliflora Via Downregulation of SLC7A11 and GPX4 mRNA Expression in A549 Lung Cancer Cells
Available online: 24 October 2024More LessIntroductionProsopis juliflora has been employed in many traditional treatments. As evidenced by our earlier research, Prosopis juliflora leaf methanol extract (PJME) has a promising future in the fight against lung cancer. It may also be used in conjunction with other treatments to effectively manage lung cancer. Aims and objective: The main objective of this study was to explore the potential of PJME to inhibit lung cancer in A549 cells, along with its underlying mechanisms of action.
MethodThe antiproliferative effects were determined using MTT and LDH tests. Apoptosis-inducing capacity was evaluated using the DAPI staining, caspase-3 test, cytochrome C assay, PARP cleavage, and qRT-PCR. To investigate the mechanism of action of PJME in lung cancer, the levels of ROS, MMP, GSH, MDA, and specific ferroptosis indicators were measured.
ResultsThe experimental data of the current study indicated that exposure of A549 cells to PJME reduced cell viability and increased cellular cytotoxicity. The apoptosis-inducing ability of PJME in A549 cells was validated by enhanced nuclear condensation, level of the caspase-3, cytochrome C, and PARP release. In addition, qRT-PCR investigations verified that the administration of PJME led to a decrease in the expression of anti-apoptotic gene Bcl2 while enhancing the mRNA level of pro-apoptotic genes, such as Bax and caspase-3, in A549 cells.
ConclusionThe study also found that PJME has the ability to activate ferroptosis pathways, as evidenced by elevated reactive oxygen species (ROS) generation, changes in the levels of antioxidant markers (MDA and GSH), and decreased expression of SLC7A11 and GPX4. The results of the present study clearly showed that PJME inhibited the proliferation of A549 cells and induced ferroptosis by reducing the expression of the important targets SLC7A11 and GPX4. Further research is necessary to fully understand the clinical efficacy of PJME before it can be investigated as supplemental or adjuvant therapy for lung cancer.
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Structure-Activity Relationship of Substituted Pyrazoline Derivatives as Small Molecule Tyrosine Kinase Inhibitors
Authors: Saleem Akbar, Subham Das, Aman Kumar Mahto, Rikeshwer Prasad Dewangan and Bahar AhmedAvailable online: 17 October 2024More LessBackgroundTyrosine kinase inhibitors (TKIs) target certain cell signalling pathways, and have become a promising class of medications for the treatment of cancer in recent years. Because of their distinct structure and adaptable chemistry, pyrazolines have drawn a lot of interest from organic and medicinal chemists. Their exceptional TKI activity has prompted them to investigate chemotherapy for cancer.
ObjectiveWe aim to develop agents that inhibit tyrosine kinases highly effective with the least amount of harm possible, perhaps improving the course of cancer treatment.
MethodsThis review compiled current information from recent literature sources, including in vitro, in vivo, approved medications, active clinical trials, and the structure-activity relationships (SAR) linked to various pyrazoline analogues used as small-molecule Tyrosine Kinase Inhibitors in cancer treatment.
ResultsThis study focuses on SAR inside the pyrazoline ring and its derivatives as TKIs, and it emphasizes current developments, including patents, authorized medications, and compounds in clinical trials.
ConclusionBy enhancing our understanding of these compounds, our goal is to aid in making the roles of pharmacologists, scientists, and researchers who are designing and developing next-generation anticancer drugs with pyrazoline scaffolds easier. The future holds immense potential for the continued evolution of pyrazoline-based therapies, offering renewed hope in the ongoing battle against cancer.
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Impact of Obesity, Menopause, and Depression in Women’s Health: An Attempt to Decipher the Complex Relationship
Authors: Pervej Alom Barbhuiya and Manash Pratim PathakAvailable online: 16 October 2024More LessBackgroundMenopause symptoms may be distressing, especially when they appear at a time when women are expected to play significant responsibilities in society. Numerous biological systems are influenced by the hormonal changes that start during the menopausal transition. This review attempts to decipher the complex relationship between obesity, menopause, and depression, citing some recent longitudinal and cross-sectional studies. Additionally, this study provides a summary of the different phytoestrogens, their sources, and probable mechanisms of action in addition to available therapeutic alternatives.
MethodologyFor this review purpose, the authors have gone through a vast number of articles from various scientific databases like PubMed, Google Scholar, and Web of Science.
ResultsIt is becoming clear that the physiological basis for these menopausal symptoms is complicated and connected to estrogen deficiency, but not alone. Other hormones like FSH, LH, progesterone, and inhibin B are the major ones that are both directly and indirectly responsible for most of the menopausal symptoms. Numerous longitudinal and cross-sectional studies have found a direct relationship between the incidence of menopause and depression as well as obesity. Phytoestrogens like stilbene, lignans, isoflavone, and coumestan have been reported to be the alternatives to synthetic estrogen with lesser side effects, as reported in various studies.
ConclusionThe complex relationship between depression, menopause, and obesity presents a complex obstacle to women's health and overall well-being. There might be a lot of promising prospects for revolutionary advancements in women's health during the menopausal stage in the future. Promising drug development that targets not just one but also the three conditions -obesity, menopause, and depression - as well as more thorough research are needed to improve the healthcare system for women who suffer from these conditions.
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