Evidence map›Paper›PMID 35320810›Full record

ArticleJournal of innate immunity2022

The Capsule of Acinetobacter baumannii Protects against the Innate Immune Response.

Lavoisier Akoolo, Silvia Pires, Jisun Kim, Dane Parker

Open access · goldAbstract read
In one paragraph

Article in Journal of innate immunity, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.0field-weighted citation impact, top 12% 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

25 citing papers in PubMed, 32 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Capsule Regulation ShapesInternational journal of molecular sciences · 2026
    Article
  5. Review
  6. Review
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. The Evolution of Antimicrobial Resistance inAntibiotics (Basel, Switzerland) · 2025
    Review
  14. Article
  15. Article
  16. Article
  17. Unveiling the Secrets ofInternational journal of molecular sciences · 2024
    Review
  18. Genomic Surveillance Uncovers a 10-Year Persistence of an OXA-24/40International journal of molecular sciences · 2024
    Article
  19. Phage-encoded depolymerases as a strategy for combating multidrug-resistantFrontiers in cellular and infection microbiology · 2024
    Review
  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

4 authors at 1 institution in 1 country.

Lavoisier AkooloDepartment of Pathology, Immunology and Laboratory Medicine, Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, New Jersey, USA.
Silvia PiresDepartment of Pathology, Immunology and Laboratory Medicine, Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, New Jersey, USA.
Jisun KimDepartment of Pathology, Immunology and Laboratory Medicine, Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, New Jersey, USA.
Dane ParkerDepartment of Pathology, Immunology and Laboratory Medicine, Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, New Jersey, USA.
Rutgers, The State University of New Jersey · US

Funding

ROLE OF TYPE III INTERFERONS IN STAPHYLOCOCCUS AUREUS RESPIRATORY TRACT INFECTIONR01HL134870 · NHLBI · RBHS-NEW JERSEY MEDICAL SCHOOL · PI PARKER, DANE · 2017 to 2020
$1.8M
Humanized lung implant mouse model to study Staphylococcus aureus airway interactionsR21AI153646 · NIAID · RBHS-NEW JERSEY MEDICAL SCHOOL · PI PARKER, DANE · 2020 to 2021
$430k
NHLBI NIH HHS R01 HL134870NIAID NIH HHS R21 AI153646
6 · The paper itself

Abstract

Acinetobacter baumannii is an opportunistic pathogen that has recently emerged as a global threat associated with high morbidity, mortality, and antibiotic resistance. We determined the role of type I interferon (IFN) signaling in A. baumannii infection. We report that A. baumannii can induce a type I IFN response that is dependent upon TLR4-TRIF-IRF3 and phagocytosis of the bacterium. Phase variants of A. baumannii that have a reduced capsule, lead to enhanced TLR4-dependent type I IFN induction. This was also observed in a capsule-deficient strain. However, we did not observe a role for this pathway in vivo. The enhanced signaling could be accounted for by increased phagocytosis in capsule-deficient strains that also lead to enhanced host cell-mediated killing. The increased cytokine response in the absence of the capsule was not exclusive to type I IFN signaling. Several cytokines, including the proinflammatory IL-6, were increased in cells stimulated with the capsule-deficient strain, also observed in vivo. After 4 h in our acute pneumonia model, the burden of a capsule-null strain was significantly reduced, yet we observed increases in innate immune cells and inflammatory markers compared to wild-type A. baumannii. This study underscores the role of phase variation in the modulation of host immune responses and indicates that the capsule of A. baumannii plays an important role in protection against host cell killing and evasion from activation of the innate immune response.

Indexed as

Acinetobacter baumanniiAcinetobacter InfectionsCytokinesHumansImmunity, InnatePhagocytosisToll-Like Receptor 4CytokinesToll-Like Receptor 4Acinetobacter baumanniiCapsuleHost-pathogen interactionsInnate responseLungPneumoniaType III interferonType I interferon

Identifiers

PMID35320810
PMCPMC9485954
OpenAlexW4221105579

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.