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Curr Med Chem. 2018 Jan 28. doi: 10.2174/0929867325666180129093546. [Epub ahead of print]

Targeting DNA repair systems in antitubercular drug development.

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1
Institute of Medical Biology, Polish Academy of Sciences - Laboratory of Genetics and Physiology of Mycobacterium Lodz. Poland.

Abstract

Infections with Mycobacterium tuberculosis, the causative agent of tuberculosis, are difficult to treat using currently available chemotherapeutics. Clinicians agree on the urgent need for novel drugs to treat tuberculosis. In this mini review, we summarize data that prompts the consideration of DNA repair-associated proteins as targets for the development of new antitubercular compounds. We discuss data, including gene expression data, that highlight the importance of DNA repair genes during the pathogenic cycle as well as after exposure to antimicrobials currently in use. Specifically, we report experiments on determining the essentiality of DNA repair-related genes. We report the availability of protein crystal structures and summarize discovered protein inhibitors. Further, we describe phenotypes of available gene mutants of M. tuberculosis and model organisms Mycobacterium bovis and Mycobacterium smegmatis. We summarize experiments regarding the role of DNA repair-related proteins in pathogenesis and virulence performed both in vitro and in vivo during the infection of macrophages and animals. We detail the role of DNA repair genes in acquiring mutations, which influence the rate of drug resistance acquisition.

KEYWORDS:

DNA repair; Mycobacterium; crystal structure; inhibitor drug resistance; mutation rate.; tuberculosis

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