Cited by 170Tuberculosis Research and EpidemiologyBacterial Genetics and BiotechnologyMicrobial Natural Products and Biosynthesis

Inhibitors of Mycobacterium tuberculosis DosRST signaling and persistence

Zheng, Huiqing, Colvin, Christopher J, Johnson, Benjamin K, Kirchhoff, Paul D, Wilson, Michael, Jorgensen-Muga, Katriana, Larsen, Scott D, Abramovitch, Robert B·2017·Nature Chemical Biology

Abstract

The Mycobacterium tuberculosis (Mtb) DosRST two-component regulatory system promotes the survival of Mtb during non-replicating persistence (NRP). NRP bacteria help drive the long course of tuberculosis therapy; therefore, chemical inhibition of DosRST may inhibit the ability of Mtb to establish persistence and thus shorten treatment. Using a DosRST-dependent fluorescent Mtb reporter strain, a whole-cell phenotypic high-throughput screen of a ∼540,000 compound small-molecule library was conducted. The screen discovered novel inhibitors of the DosRST regulon, including three compounds that were subject to follow-up studies: artemisinin, HC102A and HC103A. Under hypoxia, all three compounds inhibit Mtb-persistence-associated physiological processes, including triacylglycerol synthesis, survival and antibiotic tolerance. Artemisinin functions by disabling the heme-based DosS and DosT sensor kinases by oxidizing ferrous heme and generating heme-artemisinin adducts. In contrast, HC103A inhibits DosS and DosT autophosphorylation activity without targeting the sensor kinase heme.

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Crossref · 10.1038/nchembio.2259

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Authors
Zheng, H., Colvin, C. J., Johnson, B. K., Kirchhoff, P. D., Wilson, M., Jorgensen-Muga, K., Larsen, S. D., & Abramovitch, R. B.
Affiliations
  • Michigan State University (US)
  • University of Michigan (US)
  • Sweet Briar College (US)
Corresponding author
Abramovitch, Robert B
Venue
Nature Chemical Biology
Published
2016-12-19
Volume
13
Issue
2
Pages
218-225
ISSN
  • 1552-4450 (ISSN-L)
  • 1552-4469
OpenAlex
W2563595958
Cited by
169
References
56
Citations by year
2026: 7 · 2025: 16 · 2024: 20 · 2023: 19 · 2022: 27 · 2021: 17 · 2020: 15 · 2019: 24 · 2018: 15 · 2017: 9
FWCI
14.76
Type
journal article
Language
en
Open access
closed
Locations
  • Nature Chemical Biology (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Allergy and Infectious Diseases (U54AI057159, R21AI105867)
Topics
  • Health Sciences › Medicine › Infectious Diseases › Tuberculosis Research and Epidemiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Bacterial Genetics and Biotechnology
  • Health Sciences › Medicine › Pharmacology › Microbial Natural Products and Biosynthesis
Keywords
Mycobacterium tuberculosis, non-replicating persistence, dormancy regulation, artemisinin, triglyceride synthesis, antibiotic tolerance, hypoxia, tuberculosis drug discovery, small molecule inhibitors
MeSH terms
Histidine Kinase, Dose-Response Relationship, Drug, Mycobacterium tuberculosis, Structure-Activity Relationship, Molecular Structure, Signal Transduction, Artemisinins, Protein Kinase Inhibitors, Drug Discovery

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