Evidence map›Paper›PMID 21468222›Full record

ReviewGut microbes

Targeting of Helicobacter pylori VacA to mitochondria.

Antoine Galmiche, Joachim Rassow

Abstract readReview
In one paragraph

Review in Gut microbes. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

27 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Oxidative Phosphorylation System in Gastric Carcinomas and Gastritis.Oxidative medicine and cellular longevity · 2017
    Trial
  3. Review
  4. Review
  5. Review
  6. Review
  7. Decoding mitochondrial DNA damage and repair associated withFrontiers in cellular and infection microbiology · 2024
    Review
  8. Role of UPRFrontiers in cellular and infection microbiology · 2023
    Review
  9. Medical research archives · 2022
    Article
  10. Article
  11. Host miRNAs-microbiota interactions in gastric cancer.Journal of translational medicine · 2022
    Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Human Gut Microbiota and Gastrointestinal Cancer.Genomics, proteomics & bioinformatics · 2018
    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

2 authors.

Antoine GalmicheLaboratoire de Biochimie Inserm ERI12, Hopital Nord, CHU Amiens Picardie, Amiens Cedex 1, France.
Joachim Rassow

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

One of the major virulence factors of Helicobacter pylori is the vacuolating toxin vaca. It has been known for a long time that the toxin enters host cells by endocytosis. On the other hand there is ample evidence that vaca is able to trigger apoptosis and this effect has been attributed in part to interactions with mitochondria. However, for 10 years it was difficult to reconcile the obvious accumulation of vaca in endosomes with mitochondrial targeting. The accessibility of the mitochondria to the toxin was enigmatic. In our new study, we investigated the activities of p34, the toxic subunit of vaca, in more detail. We found that the p34 N-terminus carries a unique targeting sequence for import into mitochondria and for insertion into the mitochondrial inner membrane. By forming an anion channel in this membrane, the toxin has the ability to interfere directly with mitochondrial functions. Taking into account additional results from independent studies, we discuss the implications of our findings with respect to intracellular traffic, the remarkable possibility of a direct transfer of VacA from endosomes to mitochondria and vaca-dependent cell death.

Indexed as

AnimalsBacterial ProteinsCell LineHelicobacter pyloriHumansMembrane Transport ProteinsMitochondriaMitochondrial MembranesModels, BiologicalProtein Sorting SignalsProtein TransportVirulence FactorsBacterial ProteinsMembrane Transport ProteinsProtein Sorting SignalsVacA protein, Helicobacter pyloriVirulence FactorsapoptosisBakBaxendosomeHelicobacter pylorimitochondriaprotein importprotein targetingprotein transferVacA

Identifiers

PMID21468222
PMCPMC3056105

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.