Evidence map›Paper›PMID 34155215›Full record

ArticleNature communications2021

Intracellular localisation of Mycobacterium tuberculosis affects efficacy of the antibiotic pyrazinamide.

Pierre Santucci, Daniel J Greenwood, Antony Fearns, Kai Chen, Haibo Jiang, Maximiliano G Gutierrez

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
3.6field-weighted citation impact, top 6% 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

43 citing papers in PubMed, 87 citations in OpenAlex.

  1. MakingCell insight · 2026
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  16. Pyrazinamide killsbioRxiv : the preprint server for biology · 2025
    Article
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  18. Review
  19. Chemical genetic interactions elucidate pathways controlling tuberculosis antibiotic efficacy during infection.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 5 countries.

Pierre SantucciHost-Pathogen Interactions in Tuberculosis Laboratory, The Francis Crick Institute, London, UK.
Daniel J GreenwoodHost-Pathogen Interactions in Tuberculosis Laboratory, The Francis Crick Institute, London, UK.ORCID 0000-0002-7407-506X
Antony FearnsHost-Pathogen Interactions in Tuberculosis Laboratory, The Francis Crick Institute, London, UK.
Kai ChenSchool of Molecular Sciences, University of Western Australia, Perth, AU, Australia.
Haibo JiangSchool of Molecular Sciences, University of Western Australia, Perth, AU, Australia. hbjiang@hku.hk.ORCID 0000-0002-2384-4826
Maximiliano G GutierrezHost-Pathogen Interactions in Tuberculosis Laboratory, The Francis Crick Institute, London, UK. max.g@crick.ac.uk.ORCID 0000-0003-3199-0337
The Francis Crick Institute · GBThe University of Western Australia · AU

Funding

Cancer Research UK FC001092Medical Research Council FC001092Wellcome Trust FC001092
6 · The paper itself

Abstract

To be effective, chemotherapy against tuberculosis (TB) must kill the intracellular population of the pathogen, Mycobacterium tuberculosis. However, how host cell microenvironments affect antibiotic accumulation and efficacy remains unclear. Here, we use correlative light, electron, and ion microscopy to investigate how various microenvironments within human macrophages affect the activity of pyrazinamide (PZA), a key antibiotic against TB. We show that PZA accumulates heterogeneously among individual bacteria in multiple host cell environments. Crucially, PZA accumulation and efficacy is maximal within acidified phagosomes. Bedaquiline, another antibiotic commonly used in combined TB therapy, enhances PZA accumulation via a host cell-mediated mechanism. Thus, intracellular localisation and specific microenvironments affect PZA accumulation and efficacy. Our results may explain the potent in vivo efficacy of PZA, compared to its modest in vitro activity, and its critical contribution to TB combination chemotherapy.

Indexed as

Antitubercular AgentsCytosolDiarylquinolinesDrug SynergismHumansHydrogen-Ion ConcentrationMacrophagesMicroscopy, ElectronMutationMycobacterium tuberculosisPyrazinamideType VII Secretion SystemsAntitubercular AgentsbedaquilineDiarylquinolinesPyrazinamideType VII Secretion Systems

Identifiers

PMID34155215
PMCPMC8217510
OpenAlexW3173364861

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.