Attenuation of Mycobacterium species through direct and macrophage mediated pathway by unsymmetrical diaryl urea.

Abstract:

:Tuberculosis is a major threat for mankind and the emergence of resistance strain of Mycobacterium tuberculosis (Mtb) against first line antibiotics makes it lethal for human civilization. In this study, we have synthesized different diaryl urea derivatives targeting the inhibition of mycolic acid biosynthesis. Among the 39 synthesized molecules, compounds 46, 57, 58 and 86 showed MIC values ≤ 10 μg/ml against H37Rv and mc26030 strains. The best molecule with a methyl at ortho position of the first aromatic ring and prenyl group at the meta position of the second aromatic ring showed the MIC value of 5.2 μg/ml and 1 μg/ml against H37Rv and mc26030 respectively, with mammalian cytotoxicity of 163.4 μg/ml. The effective compounds showed selective inhibitory effect on mycolic acid (epoxy mycolate) biosynthesis in 14C-radiolabelled assay. At the same time these molecules also executed their potent immunomodulatory activity by up-regulation of IFN-γ and IL-12 and down-regulation of IL-10.

journal_name

Eur J Med Chem

authors

Velappan AB,Charan Raja MR,Datta D,Tsai YT,Halloum I,Wan B,Kremer L,Gramajo H,Franzblau SG,Kar Mahapatra S,Debnath J

doi

10.1016/j.ejmech.2016.09.083

subject

Has Abstract

pub_date

2017-01-05 00:00:00

pages

825-841

eissn

0223-5234

issn

1768-3254

pii

S0223-5234(16)30817-0

journal_volume

125

pub_type

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