Discovery and Optimization of Two Eis Inhibitor Families as Kanamycin Adjuvants against Drug-Resistant M. tuberculosis

Atefeh Garzan, Melisa J. Willby, Keith D. Green, Oleg V. Tsodikov, James E. Posey, Sylvie Garneau-Tsodikova

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

Drug-resistant tuberculosis (TB) is a global threat and innovative approaches such as using adjuvants of anti-TB therapeutics are required to combat it. High-throughput screening yielded two lead scaffolds of inhibitors of Mycobacterium tuberculosis (Mtb) acetyltransferase Eis, whose upregulation causes resistance to the anti-TB drug kanamycin (KAN). Chemical optimization on these scaffolds resulted in potent Eis inhibitors. One compound restored the activity of KAN in a KAN-resistant Mtb strain. Model structures of Eis-inhibitor complexes explain the structure-activity relationship.

Original languageEnglish
Pages (from-to)1219-1221
Number of pages3
JournalACS Medicinal Chemistry Letters
Volume7
Issue number12
DOIs
StatePublished - Dec 8 2016

Bibliographical note

Funding Information:
This work was supported by a NIH Grant AI090048 (S.G.-T.), a grant from theCCGat the U. Michigan (S.G.-T.), a grant from the Firland Foundation (S.G.-T.), and by startup funds from the College of Pharmacy at the U. Kentucky (S.G.-T. and O.V.T.).We thank Steve Vander Roest, Martha Larsen, and Paul Kirchhoff (CCG, UM) for help with HTS.

Publisher Copyright:
© 2016 American Chemical Society.

Keywords

  • Aminoglycoside acetyltransferase
  • drug combination
  • enzyme inactivation
  • resistance
  • structure−activity relationship

ASJC Scopus subject areas

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

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