Evidence map›Paper›PMID 23230296›Full record

ArticleInfection and immunity2013

Bruton's tyrosine kinase regulates Shigella flexneri dissemination in HT-29 intestinal cells.

Ana-Maria Dragoi, Arthur M Talman, Hervé Agaisse

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.0field-weighted citation impact, top 25% 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

20 citing papers in PubMed, 28 citations in OpenAlex.

  1. Article
  2. RACK1 promotesiScience · 2023
    Article
  3. Article
  4. Article
  5. Article
  6. Effects of BTK signalling in pathogenic microorganism infections.Journal of cellular and molecular medicine · 2019
    Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Review
  13. Molecular and Cellular Mechanisms of Shigella flexneri Dissemination.Frontiers in cellular and infection microbiology · 2016
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. The inside story of Shigella invasion of intestinal epithelial cells.Cold Spring Harbor perspectives in medicine · 2013
    Review
  19. Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Ana-Maria DragoiDepartment of Microbial Pathogenesis, Boyer Center for Molecular Medicine, Yale University School of Medicine, New Haven, CT, USA.
Arthur M Talman
Hervé Agaisse
Yale University · US

Funding

Mechanisms of intracellular pathogen disseminationR01AI073904 · NIAID · YALE UNIVERSITY · PI AGAISSE, HERVE F · 2007 to 2022
$5.5M
Regulation of bacterial pathogen actin-based motility by host cell kinasesR21AI094228 · NIAID · YALE UNIVERSITY · PI AGAISSE, HERVE F · 2011 to 2012
$455k
NIAID NIH HHS R01 AI073904NIAID NIH HHS R01-AI073904NIAID NIH HHS R21 AI094228NIAID NIH HHS R21-AI094228
6 · The paper itself

Abstract

Shigella flexneri is a Gram-negative intracellular pathogen that infects the intestinal epithelium and utilizes actin-based motility to spread from cell to cell. S. flexneri actin-based motility has been characterized in various cell lines, but studies in intestinal cells are limited. Here we characterized S. flexneri actin-based motility in HT-29 intestinal cells. In agreement with studies conducted in various cell lines, we showed that S. flexneri relies on neural Wiskott-Aldrich Syndrome protein (N-WASP) in HT-29 cells. We tested the potential role of various tyrosine kinases involved in N-WASP activation and uncovered a previously unappreciated role for Bruton's tyrosine kinase (Btk) in actin tail formation in intestinal cells. We showed that Btk depletion led to a decrease in N-WASP phosphorylation which affected N-WASP recruitment to the bacterial surface, decreased the number of bacteria displaying actin-based motility, and ultimately affected the efficiency of spread from cell to cell. Finally, we showed that the levels of N-WASP phosphorylation and Btk expression were increased in response to infection, which suggests that S. flexneri infection not only triggers the production of proinflammatory factors as previously described but also manipulates cellular processes required for dissemination in intestinal cells.

Indexed as

ActinsAgammaglobulinaemia Tyrosine KinaseCell Line, TumorCytosolDysentery, BacillaryHT29 CellsHumansIntestinal MucosaPhosphorylationProtein-Tyrosine KinasesShigella flexneriWiskott-Aldrich Syndrome Protein, NeuronalActinsAgammaglobulinaemia Tyrosine KinaseBTK protein, humanProtein-Tyrosine KinasesWASL protein, humanWiskott-Aldrich Syndrome Protein, Neuronal

Identifiers

PMID23230296
PMCPMC3553807
OpenAlexW2100438695

What OpenQuestion holds

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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.