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Ref Type Journal Article
PMID (27693384)
Authors Vartak SV, Hegde M, Iyer D, Gaikwad S, Gopalakrishnan V, Srivastava M, Karki SS, Choudhary B, Ray P, Santhoshkumar TR, Raghavan SC
Title A novel inhibitor of BCL2, Disarib abrogates tumor growth while sparing platelets, by activating intrinsic pathway of apoptosis.
Journal Vol Issue Date Pages Journal Short Title
Biochemical pharmacology 122 2016 Dec 15 10-22 Biochem Pharmacol
URL
Abstract Text Antiapoptotic protein BCL2, serves as an excellent target for anticancer therapy owing to its increased level in cancers. Previously, we have described characterization of a novel BCL2 inhibitor, Disarib, which showed selective cytotoxicity in BCL2 'high' cancer cells and CLL patient cells. Here, we have investigated the mechanism of Disarib-induced cytotoxicity, and compared its efficacy with a well-established BCL2 inhibitor, ABT199. We show that Disarib administration caused tumor regression in mouse allograft and xenograft models, exhibited platelet sparing property and did not exhibit significant side effects. Importantly, comparison between Disarib and ABT199, revealed higher efficacy for Disarib in mouse tumor model and cancer cell lines. Disarib induced cell death by activating intrinsic apoptotic pathway. Interestingly, Disarib showed synergism with paclitaxel, suggesting its potential for combination therapy. Thus, we provide mechanistic insights into the cell death pathways induced by Disarib, report that Disarib exhibited better effect than currently used ABT199 and demonstrate its combinatorial potential with paclitaxel.

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Molecular Profile Treatment Approach
Gene Name Source Synonyms Protein Domains Gene Description Gene Role
Therapy Name Drugs Efficacy Evidence Clinical Trials
Drug Name Trade Name Synonyms Drug Classes Drug Description
Gene Variant Impact Protein Effect Variant Description Associated with drug Resistance
Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References