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Identification of an irreversible PPAR? antagonist with potent anticancer activity.


ABSTRACT: Melanoma is responsible for most skin cancer deaths, and its incidence continues to rise year after year. Different treatment options have been developed for melanoma depending on the stage of the disease. Despite recent advances in immuno- and targeted therapies, advanced melanoma remains incurable and thus an urgent need persists for safe and more effective melanoma therapeutics. In this study, we demonstrate that a novel compound MM902 (3-(3-(bromomethyl)-5-(4-(tert-butyl) phenyl)-1H-1,2,4-triazol-1-yl) phenol) exhibited potent efficacies in inhibiting the growth of different cancer cells, and suppressed tumor growth in a mouse xenograft model of malignant melanoma. Beginning with MM902 instead of specific targets, computational similarity- and docking-based approaches were conducted to search for known anticancer drugs whose structural features match MM902 and whose pharmacological target would accommodate an irreversible inhibitor. Peroxisome proliferator-activated receptor (PPAR) was computationally identified as one of the pharmacological targets and confirmed by in vitro biochemical assays. MM902 was shown to bind to PPAR? in an irreversible mode of action and to function as a selective antagonist for PPAR? over PPAR? and PPAR?. It is hoped that MM902 will serve as a valuable research probe to study the functions of PPAR? in tumorigenesis and other pathological processes.

SUBMITTER: Peng Y 

PROVIDER: S-EPMC7719157 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature

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Identification of an irreversible PPARγ antagonist with potent anticancer activity.

Peng Youyi Y   Zhang Qiang Q   Zielinski Robert M RM   Howells Richard D RD   Welsh William J WJ  

Pharmacology research & perspectives 20201201 6


Melanoma is responsible for most skin cancer deaths, and its incidence continues to rise year after year. Different treatment options have been developed for melanoma depending on the stage of the disease. Despite recent advances in immuno- and targeted therapies, advanced melanoma remains incurable and thus an urgent need persists for safe and more effective melanoma therapeutics. In this study, we demonstrate that a novel compound MM902 (3-(3-(bromomethyl)-5-(4-(tert-butyl) phenyl)-1H-1,2,4-tr  ...[more]

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