Evidence map›Paper›PMID 25156738›Full record

ArticleInfection and immunity2014

The Acinetobacter baumannii Omp33-36 porin is a virulence factor that induces apoptosis and modulates autophagy in human cells.

Carlos Rumbo, María Tomás, Esteban Fernández Moreira, Nelson Cruz Soares, Micaela Carvajal, Elena Santillana, Alejandro Beceiro, Antonio Romero, Germán Bou

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
69citing papers in PubMed, 1 pooled it
4.7field-weighted citation impact, top 5% 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

69 citing papers in PubMed, 1 synthesis or guideline pooled it, 136 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
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  5. Article
  6. Review
  7. Review
  8. Review
  9. Article
  10. Article
  11. Review
  12. Review
  13. mBio · 2025
    Article
  14. Exploring the Multifaceted GenusJournal of microbiology and biotechnology · 2025
    Review
  15. Multidrug resistantCurrent research in microbial sciences · 2025
    Review
  16. Signaling inComputational and structural biotechnology journal · 2025
    Review
  17. The intricacies ofFrontiers in microbiology · 2025
    Review
  18. Omp34-MediatedAnalytical cellular pathology (Amsterdam) · 2025
    Article
  19. Carbapenem-resistantiScience · 2024
    Review
  20. Article

9 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

9 authors at 3 institutions in 1 country.

Carlos RumboDepartment of Microbiology, Complejo Hospitalario Universitario A Coruña-INIBIC, La Coruña, Spain.
María TomásDepartment of Microbiology, Complejo Hospitalario Universitario A Coruña-INIBIC, La Coruña, Spain ma.del.mar.tomas.carmona@sergas.es german.bou.arevalo@sergas.es.
Esteban Fernández MoreiraDepartment of Microbiology, Complejo Hospitalario Universitario A Coruña-INIBIC, La Coruña, Spain.
Nelson Cruz SoaresDepartment of Microbiology, Complejo Hospitalario Universitario A Coruña-INIBIC, La Coruña, Spain.
Micaela CarvajalCEBAS-CSIC, Madrid, Spain.
Elena SantillanaCIB-CSIC, Madrid, Spain.
Alejandro BeceiroDepartment of Microbiology, Complejo Hospitalario Universitario A Coruña-INIBIC, La Coruña, Spain.
Antonio RomeroCIB-CSIC, Madrid, Spain.
Germán BouDepartment of Microbiology, Complejo Hospitalario Universitario A Coruña-INIBIC, La Coruña, Spain ma.del.mar.tomas.carmona@sergas.es german.bou.arevalo@sergas.es.
Complexo Hospitalario Universitario A Coruña · ESConsejo Superior de Investigaciones Científicas · ESInstituto de Investigación Biomédica de A Coruña · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Acinetobacter baumannii is an extracellular opportunistic human pathogen that is becoming increasingly problematic in hospitals. In the present study, we demonstrate that the A. baumannii Omp 33- to 36-kDa protein (Omp33-36) is a porin that acts as a channel for the passage of water. The protein is found on the cell surface and is released along with other porins in the outer membrane vesicles (OMVs). In immune and connective cell tissue, this protein induced apoptosis by activation of caspases and modulation of autophagy, with the consequent accumulation of p62/SQSTM1 (sequestosome 1) and LC3B-II (confirmed by use of autophagy inhibitors). Blockage of autophagy enables the bacterium to persist intracellularly (inside autophagosomes), with the subsequent development of cytotoxicity. Finally, we used macrophages and a mouse model of systemic infection to confirm that Omp33-36 is a virulence factor in A. baumannii. Overall, the study findings show that Omp33-36 plays an important role in the pathogenesis of A. baumannii infections.

Indexed as

Acinetobacter baumanniiAcinetobacter InfectionsAnimalsApoptosisAutophagyBacterial ProteinsCell LineDNA FragmentationHumansMacrophagesMaleMiceMice, Inbred BALB CPorinsProtein ConformationVirulence FactorsBacterial ProteinsPorinsVirulence Factors

Identifiers

PMID25156738
PMCPMC4249306
OpenAlexW2149249163

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.