Evidence map›Paper›PMID 20300064›Full record

ArticleThe EMBO journal2010

A bacterial effector targets host DH-PH domain RhoGEFs and antagonizes macrophage phagocytosis.

Na Dong, Liping Liu, Feng Shao

Open access · bronzeAbstract read
In one paragraph

Article in The EMBO journal, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed, 1 pooled it
7.1field-weighted citation impact, top 3% 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

53 citing papers in PubMed, 1 synthesis or guideline pooled it, 95 citations in OpenAlex.

  1. Effects of theInternational journal of molecular sciences · 2021
    Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Review
  8. Attaching and effacing pathogens modulate host mitochondrial structure and function.International review of cell and molecular biology · 2023
    Review
  9. Article
  10. Pathophysiology of enteropathogenicJournal of veterinary science · 2022
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. Review
  19. Article
  20. Article
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.

Na DongCollege of Life Science, Peking University, Beijing, China.
Liping Liu
Feng Shao
National Institute of Biological Sciences, Beijing · CN

Funding

Harm reduction with pharmacotherapy for homeless adults with alcohol dependenceR01AA022309 · NIAAA · UNIVERSITY OF WASHINGTON · PI COLLINS, SUSAN E · 2013 to 2017
$3.3M
NIAAA NIH HHS R01 AA022309
6 · The paper itself

Abstract

Bacterial pathogens often harbour a type III secretion system (TTSS) that injects effector proteins into eukaryotic cells to manipulate host processes and cause diseases. Identification of host targets of bacterial effectors and revealing their mechanism of actions are crucial for understating bacterial virulence. We show that EspH, a type III effector conserved in enteric bacterial pathogens including enteropathogenic Escherichia coli (EPEC), enterohaemorrhagic E. coli and Citrobacter rodentium, markedly disrupts actin cytoskeleton structure and induces cell rounding up when ectopically expressed or delivered into HeLa cells by the bacterial TTSS. EspH inactivates host Rho GTPase signalling pathway at the level of RhoGEF. EspH directly binds the DH-PH domain in multiple RhoGEFs, which prevents their binding to Rho and thereby inhibits nucleotide exchange-mediated Rho activation. Consistently, infection of mouse macrophages with EPEC harbouring EspH attenuates phagocytosis of the bacteria as well as FcgammaR-mediated phagocytosis. EspH represents the first example of targeting RhoGEFs by bacterial effectors, and our results also reveal an unprecedented mechanism used by enteric pathogens to counteract the host defence system.

Indexed as

PhagocytosisActinsAnimalsBacterial ToxinsCell LineCytoskeletonEscherichia coliEscherichia coli ProteinsGuanine Nucleotide Exchange FactorsHeLa CellsHost-Pathogen InteractionsHumansMacrophagesProtein BindingProtein Structure, TertiaryReceptors, G-Protein-CoupledActinsBacterial Toxinscytotoxic necrotizing factor type 1Escherichia coli ProteinsEspH protein, E coliGuanine Nucleotide Exchange FactorsReceptors, G-Protein-Coupledrho GTP-Binding ProteinsRho Guanine Nucleotide Exchange Factors

Identifiers

PMID20300064
PMCPMC2868573
OpenAlexW2099174500

What OpenQuestion holds

Textmetadata
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.