Synthesis, Chemotherapeutic Screening and Docking Studies of NSAID Inserted Peptide‐Triazole Hybrid Molecules

1,2,3-Triazole-Containing Compounds as Anti-Lung Cancer Agents: Current Developments, Mechanisms of Action, and Structure-Activity Relationship

Lung cancer is the most common malignancy and leads to around one-quarter of all cancer deaths. Great advances have been achieved in the treatment of lung cancer with novel anticancer agents and improved technology. However, morbidity and mortality rates remain extremely high, calling for an urgent need to develop novel anti-lung cancer agents. 1,2,3-Triazole could be readily interact with diverse enzymes and receptors in organisms through weak interaction. 1,2,3-Triazole can not only be acted as a linker to tether different pharmacophores but also serve as a pharmacophore. This review aims to summarize the recent advances in 1,2,3-triazole-containing compounds with anti-lung cancer potential, and their structure-activity relationship (SAR) together with mechanisms of action is also discussed to pave the way for the further rational development of novel anti-lung cancer candidates.

RNR inhibitor binding studies of Chlamydia felis: insights from in silico molecular modeling, docking, and simulation studies

Chlamydia felis is the primary cause of chronic conjunctivitis without respiratory infections in cats, making conjunctiva as its primary target. It is a Gram-negative obligate intracellular bacterium that cannot survive outside the host cell. C. felis can be found worldwide and its zoonotic potential is a known phenomenon. The scope of zoonoses, its scale, and their impact experiencing today has no historical precedence. Among the identified 1415 human pathogens 868 have a zoonotic origin making it to 61%. Although with appropriate drug administration there are instances of re-occurrence of chlamydial infections, the emergence of heterotypic antimicrobial resistance to antibiotics targeting rRNA due to mutations has further complicated the diagnosis and treatment of chlamydial infections. Ribonucleotide-diphosphate reductase subunit beta (RNR) is one of the crucial target proteins of the bacterial pathogens essential in the synthesis of deoxyribonucleotides. Our current study primarily focuses on modeling the target structure through homology modeling. Further, the validated model is complexed with the specific inhibitor Cladribine through sequence-based ligand search. Docking of the identified ligand was performed to identify the different modes of interactions with amino acids present in the prioritized binding pockets. Validation of the binding modes is carried out through molecular dynamics (MD) simulations for the best binding pose with a high binding score. MD simulation study demonstrated the stability of the docked complex considered in this study. The findings from this study may be helpful in drug repurposing and novel drug research in the scenario of resistance to currently practiced antibiotics.Communicated by Ramaswamy H. Sarma.