Current Medicinal Chemistry - Online First

Sepsis remains a leading cause of global morbidity and mortality.

To identify candidate biomarkers that may be mechanistically related to the pathogenesis of sepsis.

The Gene Expression Omnibus database was leveraged to identify differentially expressed genes (DEGs) between the healthy control and septicemia groups. Genes causally related to sepsis were probed through the integration of GWAS and expression quantitative trait loci (eQTL) data in a two-sample Mendelian randomization (MR) analysis. A set of key sepsis-related genes was then selected based on the overlap between these putative causal genes and the DEGs. These genes were then subjected to enrichment analyses, testing set validation, and analyses of their expression dynamics in clinical samples.

An examination of the overlap between 228 sepsis-related DEGs identified in the training dataset and 275 candidate causal genes linked to sepsis derived from the MR analysis led to the selection of four overlapping (SLC22A15, IL5RA, HDC, and SLC46A2) that may play a key role in sepsis. Enrichment analyses indicated that these genes were involved in the regulation of histidine metabolism and immune/inflammatory responses. In immune cell infiltration analyses, these genes were positively correlated with inflammatory response activation and the suppression of adaptive immunity. Consistent findings were obtained through qPCR verification in clinical samples.

These results offer potential insight into the mechanisms that govern septicemia and thus suggest a promising series of candidates that may be amenable to targeting to prevent or treat sepsis more effectively.

The emergence of the monkeypox virus (MPXV) as a zoonotic threat has necessitated the development of effective treatments, particularly after it spread to regions outside of Central and Western Africa, such as the 2003 outbreak in the United States. Our groundbreaking study identifies CDK1 and TOP2A as key proteins in the pathogenesis of MPXV infection, utilizing network pharmacology to target these proteins for the first time. CDK1 and TOP2A, previously known for their roles in cell reprogramming, emerge as critical targets in our strategy to combat the virus.

By targeting CDK1 and TOP2A, proteins integral to cell reprogramming, with small molecules identified in our study, such as carnosic acid, rosmarinic acid, and coclaurine, we propose a novel method not only to inhibit the replication of the monkeypox virus but also to harness cellular plasticity for therapeutic purposes. The identification and targeting of these proteins with specific compounds disrupt the virus's life cycle and simultaneously enhance the efficiency of cell reprogramming.

This dual-action approach leverages the inherent plasticity of cellular reprogramming processes to combat the virus, showcasing a pioneering step in the use of regenerative medicine principles for antiviral strategies. Moreover, molecular docking and dynamic simulations strengthen our findings by demonstrating a strong binding affinity between TOP2A and CDK1, validating the synergistic effects of our identified small molecules.

Our research thus opens new avenues for addressing viral threats like monkeypox, utilizing the convergence of virology, network pharmacology, and cellular reprogramming to pave the way for innovative treatments.

Type 2 diabetes (T2D) is a disease of high prevalence that is expected to continue increasing despite the pharmacological treatments available; in most cases, it is difficult to control. Therefore, more research on experimental drugs is necessary to propose better treatments.

This study aimed to identify the molecular alterations of pancreatic islets in type 2 diabetes through multi-omics data integration and possible pharmacological targets using bioinformatics methods.

In this study, the OmicsNet tool was used to integrate the multi-omics data associated with T2D, and the protein-protein interaction was visualized. Then, gene ontology and KEGG pathways analyses were carried out. Using the DrugRep server, the hub genes obtained underwent a virtual screening with experimental drugs, and twelve experimental drugs were selected to execute the molecular docking by CB-Dock2. Finally, the interactions were displayed in BIOVIA software.

Our results showed that the main molecular alterations of pancreatic islets in T2D were enzyme binding, mitochondrial metabolism, transcription factors, etc. They were involved in glucose uptake, receptor insulin signaling, and secretion. The molecular docking showed that SRC, AKT1, CREBBP, and HSP90AA1 were therapeutic targets for DB02729, DB04877, DB07970, DB07789, and DB03373.

We identified some alterations in the pancreas of patients with T2D, ten hub genes, and five experimental drugs that could potentially correct gene expression abnormalities. However, further studies are required to validate these results.

The rise of drug-resistant strains of Mycobacterium tuberculosis (Mtb) represents a substantial public health challenge. Current TB treatments involve the combination of several antibiotics and other agents. However, the development of drug resistance, reduced bioavailability, and elevated toxicity have rendered most of the drugs less effective.

To resolve this problem, the identification of novel anti-tuberculosis agents with novel mechanisms of action is the need of the hour. HsaA monooxygenase is an enzyme involved in cholesterol metabolism, particularly in certain strains of Mycobacterium bacteria. This research focuses on discovering new inhibitors for HsaA from a pool of 40 compounds using computational techniques like molecular docking and Molecular Dynamics (MD) simulations along with comparing it with GSK2556286.

Docking studies revealed that AK05 and AK13 showed good binding affinity as compared to GSK2556286. The docking scores of AK05, AK13, and GSK2556286 are -9.4, -9.0, and -8.9 kcal/mol, respectively. ADMET studies showed that these thiadiazole derivatives can be investigated as lead molecules for the development of novel antituberculosis drugs. MD simulation studies showed that both of the compounds AK05 and AK13 were stable at the binding site with RMSD below 0.25 nm.

All these findings demonstrated that AK05 and AK13 could be used as potent compounds for the development of HsaA monooxygenase inhibitors.

As the leading cause of cancer-related deaths globally, colorectal cancer (CRC) ranks third in prevalence. Gene Expression Omnibus (GEO) offers clinicians and bioinformaticians an accessible platform for genomic research across various cancer types, with a particular emphasis on CRC.

We aim to uncover key genes and pathways in the Chinese CRC population.

We identified differentially expressed genes (DEGs) in CRC utilizing four microarray datasets sourced from the GEO database, all specifically from the Chinese population. Functional enrichment analysis was conducted to uncover the molecular mechanisms at play in CRC. The PPI network and CytoHubba tools were employed to identify key genes linked to CRC, with further validation through databases such as Gene Expression Profiling Interactive Analysis (GEPIA), ONCOMINE, and the Human Protein Atlas (HPA).

Our analysis identified 188 DEGs with overlapping significance, comprising 97 up-regulated and 91 down-regulated genes. Gene Ontology (GO) analysis indicated that up-regulated DEGs were predominantly involved in the extracellular space. In contrast, the down-regulated ones were linked to bicarbonate transport and extracellular exosomes. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis highlighted the involvement of up-regulated DEGs in cytokine-cytokine receptor interactions and the TNF signaling pathway. In contrast, the down-regulated genes were associated with nitrogen metabolism and bicarbonate reclamation in the proximal tubule. Notably, the transcriptional levels of CCL20, CDC20, CXCL1, CXCL2, CXCL5, NEK2, and PPBP were elevated in CRC tissues compared to normal tissues. In addition, CXCL12 showed a decreased expression. Additionally, the translational levels of CDC20 and PPBP were found to be higher in CRC tissues.

Eight genes (CCL20, CDC20, CXCL1, CXCL12, CXCL2, CXCL5, NEK2, and PPBP) were identified as potential diagnostic indicators for CRC. The identified pathways, such as cytokine-cytokine receptor interactions and TNF signaling, along with nitrogen metabolism and bicarbonate reclamation in the proximal tubule, are hypothesized to have a role in the genesis and progression of CRC. This study provides unique insights into the etiology and progression of CRC within the Chinese population.

Intellectual disability (ID) is characterized by impairments in cognitive functioning and adaptive behavior. Globally, it affects 1-3% of the general population, with an increased prevalence in consanguineous families. It is a clinically heterogeneous disorder that can manifest as a variable phenotype. Intellectual developmental disorder and retinitis pigmentosa (IDDRP) is a rare syndrome in which patients present with both ID and retinitis pigmentosa.

This study examined a consanguineous family to identify disease-associated pathogenic mutations and elucidate their potential functional impact in patients with IDDRP.

Clinical assessment of the patients revealed characteristics consistent with both intellectual disability (ID) and retinitis pigmentosa. Individuals affected by IDDRP were subjected to whole exome sequencing (WES), and the identified candidate pathogenic variants were validated by Sanger sequencing. Computational analyses were conducted to evaluate the impact of these mutations on the protein structure and function.

WES identified a protein-truncating variant, c.2605A>T (p.Lys869Ter), in the S-phase cyclin A-associated protein in the endoplasmic reticulum (SCAPER) gene. SCAPER has previously been reported to cause IDDRP. In silico analyses revealed structural and interactional alterations in the SCAPER protein. This variant is novel in the Pakistani population and has not been previously reported. This variant exhibits an autosomal recessive mode of inheritance and segregates among the investigated affected and unaffected family members.

The present study expands the spectrum of disease-causing variants in SCAPER and will contribute to a better understanding of the genetic etiology of IDDRP.