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Bantzi M, Augsburger F, Loup J, Berset Y, Vasilakaki S, Myrianthopoulos V, Mikros E, Szabo C, Bochet CG. Novel Aryl-Substituted Pyrimidones as Inhibitors of 3-Mercaptopyruvate Sulfurtransferase with Antiproliferative Efficacy in Colon Cancer. J Med Chem 2021; 64:6221-6240. [PMID: 33856792 DOI: 10.1021/acs.jmedchem.1c00260] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The enzyme 3-mercaptopyruvate sulfurtransferase (3-MST) is one of the more recently identified mammalian sources of H2S. A recent study identified several novel 3-MST inhibitors with micromolar potency. Among those, (2-[(4-hydroxy-6-methylpyrimidin-2-yl)sulfanyl]-1-(naphthalen-1-yl)ethan-1-one) or HMPSNE was found to be the most potent and selective. We now took the central core of this compound and modified the pyrimidone and the arylketone sides independently. A 63-compound library was synthesized; compounds were tested for H2S generation from recombinant 3-MST in vitro. Active compounds were subsequently tested to elucidate their potency and selectivity. Computer modeling studies have delineated some of the key structural features necessary for binding to the 3-MST's active site. Six novel 3-MST inhibitors were tested in cell-based assays: they exerted inhibitory effects in murine MC38 and CT26 colon cancer cell proliferation; the antiproliferative effect of the compound with the highest potency and best cell-based activity (1b) was also confirmed on the growth of MC38 tumors in mice.
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Affiliation(s)
- Marina Bantzi
- Department of Chemistry, University of Fribourg, 1700 Fribourg, Switzerland.,Chair of Pharmacology, Faculty of Science and Medicine University of Fribourg, 1700 Fribourg, Switzerland
| | - Fiona Augsburger
- Chair of Pharmacology, Faculty of Science and Medicine University of Fribourg, 1700 Fribourg, Switzerland
| | - Jérémie Loup
- Department of Chemistry, University of Fribourg, 1700 Fribourg, Switzerland
| | - Yan Berset
- Department of Chemistry, University of Fribourg, 1700 Fribourg, Switzerland
| | - Sofia Vasilakaki
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry, University of Athens, 15772 Athens, Greece
| | - Vassilios Myrianthopoulos
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry, University of Athens, 15772 Athens, Greece
| | - Emmanuel Mikros
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry, University of Athens, 15772 Athens, Greece
| | - Csaba Szabo
- Chair of Pharmacology, Faculty of Science and Medicine University of Fribourg, 1700 Fribourg, Switzerland
| | - Christian G Bochet
- Department of Chemistry, University of Fribourg, 1700 Fribourg, Switzerland
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Antiangiogenic and finasteride therapies: Responses of the prostate microenvironment in elderly mice. Life Sci 2014; 106:58-70. [DOI: 10.1016/j.lfs.2014.04.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Revised: 04/14/2014] [Accepted: 04/19/2014] [Indexed: 01/05/2023]
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TNP-470: The Resurrection of the First Synthetic Angiogenesis Inhibitor. Angiogenesis 2008. [DOI: 10.1007/978-0-387-71518-6_35] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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