Evidence map›Paper›PMID 25321481›Full record

ArticleCell death & disease2014

Mycobacterium tuberculosis ESAT-6 is a leukocidin causing Ca2+ influx, necrosis and neutrophil extracellular trap formation.

R J Francis, R E Butler, G R Stewart

Open access · goldAbstract read
In one paragraph

Article in Cell death & disease, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

52 citing papers in PubMed, 92 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Review
  5. Article
  6. Review
  7. Review
  8. A Putative Role for TRPC6 in Immune-Mediated Kidney Injury.International journal of molecular sciences · 2023
    Review
  9. International journal of molecular sciences · 2023
    Review
  10. Virulence Factors ofPathogens (Basel, Switzerland) · 2023
    Review
  11. Neutrophils inVaccines · 2023
    Review
  12. Frontiers in immunology · 2023
    Article
  13. Role of phagocyte extracellular traps duringFrontiers in microbiology · 2023
    Review
  14. Article
  15. Different modalities of host cell death and their impact onAmerican journal of physiology. Cell physiology · 2022
    Review
  16. Article
  17. Review
  18. Article
  19. 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

3 authors at 1 institution in 1 country.

R J FrancisDepartment of Microbial and Cellular Sciences and Bioimaging and Flow Cytometry Core Facility, Faculty of Health and Medical Sciences, University of Surrey, Guildford, GU2 7XH, UK.
R E ButlerDepartment of Microbial and Cellular Sciences and Bioimaging and Flow Cytometry Core Facility, Faculty of Health and Medical Sciences, University of Surrey, Guildford, GU2 7XH, UK.
G R StewartDepartment of Microbial and Cellular Sciences and Bioimaging and Flow Cytometry Core Facility, Faculty of Health and Medical Sciences, University of Surrey, Guildford, GU2 7XH, UK.
University of Surrey · GB

Funding

Wellcome TrustWellcome Trust WT090242MA
6 · The paper itself

Abstract

Mycobacterium tuberculosis infection generates pulmonary granulomas that consist of a caseous, necrotic core surrounded by an ordered arrangement of macrophages, neutrophils and T cells. This inflammatory pathology is essential for disease transmission and M. tuberculosis has evolved to stimulate inflammatory granuloma development while simultaneously avoiding destruction by the attracted phagocytes. The most abundant phagocyte in active necrotic granulomas is the neutrophil. Here we show that the ESAT-6 protein secreted by the ESX-1 type VII secretion system causes necrosis of the neutrophils. ESAT-6 induced an intracellular Ca(2+) overload followed by necrosis of phosphatidylserine externalised neutrophils. This necrosis was dependent upon the Ca(2+) activated protease calpain, as pharmacologic inhibition prevented this secondary necrosis. We also observed that the ESAT-6 induced increase in intracellular Ca(2+), stimulated the production of neutrophil extracellular traps characterised by extruded DNA and myeloperoxidase. Thus we conclude that ESAT-6 has a leukocidin function, which may facilitate bacterial avoidance of the antimicrobial action of the neutrophil while contributing to the maintenance of inflammation and necrotic pathology necessary for granuloma formation and TB transmission.

Indexed as

Antigens, BacterialBacterial ProteinsCalciumCalpainEnzyme ActivationExocytosisExtracellular TrapsHumansLeukocidinsMycobacterium tuberculosisNecrosisNeutrophilsPhosphatidylserinesAntigens, BacterialBacterial ProteinsCalciumCalpainESAT-6 protein, Mycobacterium tuberculosisLeukocidinsPhosphatidylserines

Identifiers

PMID25321481
PMCPMC4237235
OpenAlexW2014623764

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.