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Abstract
In this study, four new adamantane thiadiazole derivatives (ATDs) were designed and theoretically tested for their binding affinities to a model of an apoptosis inhibitor protein using molecular modeling. ATD-4, that showed the highest binding affinity, was synthesized, characterized and screened for its cytotoxic activity against different cancer cell lines as well as normal cell line using 5-fluorouracil as a reference organic drug. Inducing apoptosis in lung carcinoma cell line was studied by various biochemical and morphological methods. Results indicate that ATD-4 exerted its cytotoxic activity against A549 cells through the induction of the intrinsic (mitochondrial) apoptotic pathway