Evidence map›Paper›PMID 21372049›Full record

ArticleDisease models & mechanisms2011

Zebrafish embryo screen for mycobacterial genes involved in the initiation of granuloma formation reveals a newly identified ESX-1 component.

Esther J M Stoop, Tim Schipper, Sietske K Rosendahl Huber, Alexander E Nezhinsky, Fons J Verbeek, Sudagar S Gurcha, Gurdyal S Besra, Christina M J E Vandenbroucke-Grauls, Wilbert Bitter, Astrid M van der Sar

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In one paragraph

Article in Disease models & mechanisms, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed
6.6field-weighted citation impact, top 2% 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

71 citing papers in PubMed, 114 citations in OpenAlex.

  1. Journal of bacteriology · 2025
    Review
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  6. Dysregulation ofBiomolecules · 2023
    Article
  7. Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Modeling Tubercular ESX-1 Secretion Using Mycobacterium marinum.Microbiology and molecular biology reviews : MMBR · 2020
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review

11 more citing papers are in PubMed but not listed here.

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

10 authors at 3 institutions in 2 countries.

Esther J M StoopDepartment of Medical Microbiology and Infection Control, VU University Medical Center, van der Boechorststraat 7, 1081 BT Amsterdam, The Netherlands.
Tim Schipper
Sietske K Rosendahl Huber
Alexander E Nezhinsky
Fons J Verbeek
Sudagar S Gurcha
Gurdyal S Besra
Christina M J E Vandenbroucke-Grauls
Wilbert Bitter
Astrid M van der Sar
Amsterdam UMC Location VUmc · NLLeiden University · NLUniversity of Birmingham · GB

Funding

Medical Research Council G0901327
6 · The paper itself

Abstract

The hallmark of tuberculosis (TB) is the formation of granulomas, which are clusters of infected macrophages surrounded by additional macrophages, neutrophils and lymphocytes. Although it has long been thought that granulomas are beneficial for the host, there is evidence that mycobacteria also promote the formation of these structures. In this study, we aimed to identify new mycobacterial factors involved in the initial stages of granuloma formation. We exploited the zebrafish embryo Mycobacterium marinum infection model to study initiation of granuloma formation and developed an in vivo screen to select for random M. marinum mutants that were unable to induce granuloma formation efficiently. Upon screening 200 mutants, three mutants repeatedly initiated reduced granuloma formation. One of the mutants was found to be defective in the espL gene, which is located in the ESX-1 cluster. The ESX-1 cluster is disrupted in the Mycobacterium bovis BCG vaccine strain and encodes a specialized secretion system known to be important for granuloma formation and virulence. Although espL has not been implicated in protein secretion before, we observed a strong effect on the secretion of the ESX-1 substrates ESAT-6 and EspE. We conclude that our zebrafish embryo M. marinum screen is a useful tool to identify mycobacterial genes involved in the initial stages of granuloma formation and that we have identified a new component of the ESX-1 secretion system. We are confident that our approach will contribute to the knowledge of mycobacterial virulence and could be helpful for the development of new TB vaccines.

Indexed as

AnimalsBacterial ProteinsDNA Transposable ElementsEmbryo, NonmammalianGenes, BacterialGenetic Complementation TestGranulomaHumansIntracellular SpaceMutationMycobacterium marinumPhenotypeRNA, MessengerZebrafishBacterial ProteinsDNA Transposable ElementsRNA, Messenger

Identifiers

PMID21372049
PMCPMC3124061
OpenAlexW2138948319

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.