Kozlov MV, Konduktorov KA, Malikova AZ, Kamarova KA, Shcherbakova AS, Solyev PN, Kochetkov SN. Structural isomers of cinnamic hydroxamic acids block HCV replication via different mechanisms.
Eur J Med Chem 2019;
183:111723. [PMID:
31557613 DOI:
10.1016/j.ejmech.2019.111723]
[Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Accepted: 09/19/2019] [Indexed: 02/07/2023]
Abstract
A set of ortho-, meta- and para-substituted cinnamic hydroxamic acids (CHAs) was synthesized. In each series of structural isomers, a phenyl substituent was linked to an aromatic ring of the parent cinnamic acid via a linker of one to four atoms in length. Using a cell test system with the full-length replicon of hepatitis C virus (HCV), we established a relationship between the suppression of HCV replicon propagation and the inhibition of class I/IIb histone deacetylases (HDACs). Anti-HCV activity correlated with the inhibition of HDAC8 in the case of ortho-CHAs, while in the case of meta-CHAs it correlated with the inhibition of HDAC1/2/3 and HDAC6. The antiviral activity of para-CHAs was many times stronger than that of meta-CHAs with about the same efficiency of HDAC1/2/3/6 inhibition, which indicated the existence of an additional cell target that does not belong to the studied group of HDACs.
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