Identification of Potential Lead Compounds against BCL-2 through in-silico Screening of Phytochemicals of Nigella sativa and Cuscuta reflexa for Oral Squamous Cell Carcinoma Management

Significance of the study: The present study has attempted to assess Bcl2 the efficacy of combination of the Nigella sativa and Cuscuta reflexa to target BCL-2 for anticancer treatment through computer aided drug designing approach.Insilico analysis is frequently used in physicochemical characterisation, the discovery and improvement of novel compounds with affinity to a target, and the elucidation of absorption, distribution, metabolism, excretion, and toxicity features. Aim: The aim of this study is to assess the efficacy of Nigella sativa and Cuscuta reflexa in targeting Bcl2-antiapoptotic protein in Oral Squamous Cell Carcinoma through Insilico analysis. Materials and Methods: The present study was designed to formulate a drug against Oral Squamous cell carcinoma against the target protein Bcl-2. Protein Database (PDB) was used to select and analyse the protein. Based on the literature search, the original molecules selected were thymoquinone, tannin pyrogallol, Cuscutin, kaempferol, nigellicine and the ligand structures were obtained ZINC15 database. Target protein structure was recognised through Protein sequence from PB (Protein Data Bank). Swiss ADME was used for assessing the properties of the molecules. Twenty new molecules were identified from zinc pharmer and docking was done for all the 20 using Swiss dock. Binding energy was assessed and compared with the original molecules.ZINC73690300 and ZINC73690304 had better binding energy than that of original molecules. Both molecules can be potential candidates for Bcl2 inhibition to prevent OSCC. Results: ZINC73690300 and ZINC73690304 had better binding energy than that of the original molecules. Both molecules can be potential candidates for Bcl-2 inhibition to prevent OSCC. Conclusion: The present study evaluated the binding energy and bioavailability of the combined extract, thus attempting to predict the target ligand binding between the compounds in OSCC before attempting in vitro studies.-