Evidence map›Paper›PMID 30500421›Full record

ArticleFree radical biology & medicine2019

Mycobacterium tuberculosis WhiB3 maintains redox homeostasis and survival in response to reactive oxygen and nitrogen species.

Mansi Mehta, Amit Singh

Erratum issuedOpen access · hybridAbstract read
In one paragraph

Article in Free radical biology & medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 40 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 1 pooled it
3.2field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

40 citing papers in PubMed, 1 synthesis or guideline pooled it, 65 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Review
  5. Article
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  7. IFN-γ-Driven macrophage responses in the immunity toFrontiers in cellular and infection microbiology · 2025
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  8. WhiB-like proteins: Diversity of structure, function and mechanism.Biochimica et biophysica acta. Molecular cell research · 2024
    Review
  9. Review
  10. Article
  11. Review
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  13. Diversification of gene content in theMicrobiology spectrum · 2024
    Article
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  15. Article
  16. Article
  17. Frontiers in cellular and infection microbiology · 2023
    Review
  18. The rate and role of pseudogenes of theMicrobial genomics · 2022
    Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

Mansi MehtaMicrobiology and Cell Biology, Centre for Infectious Disease Research (CIDR), Indian Institute of Science (IISc), CV Raman Av, Bangalore 12, India.
Amit SinghMicrobiology and Cell Biology, Centre for Infectious Disease Research (CIDR), Indian Institute of Science (IISc), CV Raman Av, Bangalore 12, India. Electronic address: asingh@iisc.ac.in.
Indian Institute of Science Bangalore · IN

Funding

DBT-Wellcome Trust India Alliance IA/S/16/2/502700Wellcome Trust
6 · The paper itself

Abstract

Mycobacterium tuberculosis (Mtb) survives under oxidatively and nitosatively hostile niches inside host phagocytes. In other bacteria, adaptation to these stresses is dependent upon the redox sensitive two component systems (e.g., ArcAB) and transcription factors (e.g., FNR/SoxR). However, these factors are absent in Mtb. Therefore, it is not completely understood how Mtb maintains survival and redox balance in response to reactive oxygen species (ROS) and reactive nitrogen species (RNS). Here, we present evidences that a 4Fe-4S-cofactor containing redox-sensitive transcription factor (WhiB3) is exploited by Mtb to adapt under ROS and RNS stress. We show that MtbΔwhiB3 is acutely sensitive to oxidants and to nitrosative agents. Using a genetic biosensor of cytoplasmic redox state (Mrx1-roGFP2) of Mtb, we show that WhiB3 facilitates recovery from ROS (cumene hydroperoxide and hydrogen peroxide) and RNS (acidified nitrite and peroxynitrite). Also, MtbΔwhiB3 displayed reduced survival inside RAW 264.7 macrophages. Consistent with the role of WhiB3 in modulating host-pathogen interaction, we discovered that WhiB3 coordinates the formation of early human granulomas during interaction of Mtb with human peripheral blood mononuclear cells (PBMCs). Altogether, our study provides empirical proof that WhiB3 is required to mitigate redox stress induced by ROS and RNS, which may be important to activate host/bacterial pathways required for the granuloma development and maintenance.

Indexed as

Gene Expression Regulation, BacterialAnimalsBenzene DerivativesBiosensing TechniquesGene DeletionHomeostasisHost-Pathogen InteractionsHumansHydrogen PeroxideIron-Sulfur ProteinsLeukocytes, MononuclearMiceMicrobial ViabilityMycobacterium tuberculosisNitritesOxidation-ReductionBenzene Derivativescumene hydroperoxideHydrogen PeroxideIron-Sulfur ProteinsNitritesPeroxynitrous AcidReactive Nitrogen SpeciesReactive Oxygen SpeciesTranscription Factors

Identifiers

PMID30500421
PMCPMC6635127
OpenAlexW2902696432

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.