QSAR and Docking Studies on Capsazepine Derivatives for Immunomodulatory and Anti-Inflammatory ActivityReportar como inadecuado

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Capsazepine, an antagonist of capsaicin, is discovered by the structure and activity relationship. In previous studies it has been found that capsazepine has potency for immunomodulation and anti-inflammatory activity and emerging as a favourable target in quest for efficacious and safe anti-inflammatory drug. Thus, a 2D quantitative structural activity relationship QSAR model against target tumor necrosis factor-α TNF-α was developed using multiple linear regression method MLR with good internal prediction r2 = 0.8779 and external prediction r2pred = 0.5865 using Discovery Studio v3.5 Accelrys, USA. The predicted activity was further validated by in vitro experiment. Capsazepine was tested in lipopolysaccharide LPS induced inflammation in peritoneal mouse macrophages. Anti-inflammatory profile of capsazepine was assessed by its potency to inhibit the production of inflammatory mediator TNF-α. The in vitro experiment indicated that capsazepine is an efficient anti-inflammatory agent. Since, the developed QSAR model showed significant correlations between chemical structure and anti-inflammatory activity, it was successfully applied in the screening of forty-four virtual derivatives of capsazepine, which finally afforded six potent derivatives, CPZ-29, CPZ-30, CPZ-33, CPZ-34, CPZ-35 and CPZ-36. To gain more insights into the molecular mechanism of action of capsazepine and its derivatives, molecular docking and in silico absorption, distribution, metabolism, excretion and toxicity ADMET studies were performed. The results of QSAR, molecular docking, in silico ADMET screening and in vitro experimental studies provide guideline and mechanistic scope for the identification of more potent anti-inflammatory and immunomodulatory drug.

Autor: Aparna Shukla, Pooja Sharma, Om Prakash, Monika Singh, Komal Kalani, Feroz Khan , Dnyaneshwar Umrao Bawankule, Suaib Luqman, Sant

Fuente: http://plos.srce.hr/


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