Evidence map›Paper›PMID 22888139›Full record

ArticleJournal of immunology (Baltimore, Md. : 1950)2012

Protective role of commensals against Clostridium difficile infection via an IL-1β-mediated positive-feedback loop.

Mizuho Hasegawa, Nobuhiko Kamada, Yizu Jiao, Meng Zhen Liu, Gabriel Núñez, Naohiro Inohara

Open access · bronzeAbstract read
In one paragraph

Article in Journal of immunology (Baltimore, Md. : 1950), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 94 papers.

0numbers the graph read from it
0cells of the map it votes in
94citing papers in PubMed
5.3field-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

94 citing papers in PubMed, 130 citations in OpenAlex.

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  12. Mechanisms ofFrontiers in cellular and infection microbiology · 2025
    Review
  13. NKp46Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  14. Article
  15. Reviewing theMicroorganisms · 2024
    Review
  16. Article
  17. Host Immune Responses toTropical medicine and infectious disease · 2023
    Review
  18. Article
  19. Review
  20. Article

34 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

6 authors at 2 institutions in 1 country.

Mizuho HasegawaDepartment of Pathology, University of Michigan Medical School, Ann Arbor, MI 48109, USA.
Nobuhiko Kamada
Yizu Jiao
Meng Zhen Liu
Gabriel Núñez
Naohiro Inohara
University of Michigan–Ann Arbor · USMichigan Center for Translational Pathology · US

Funding

The Role of Inflammasomes in Mucosal Immunity to Intestinal Bacterial PathogensR01DK091191 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI NUNEZ, GABRIEL · 2010 to 2019
$3.1M
Regulation of Oral Bacteria by Pattern Recognition ReceptorsR01DE018503 · NIDCR · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI INOHARA, NAOHIRO · 2008 to 2012
$1.8M
NIDCR NIH HHS R01 DE018503NIDDK NIH HHS R01 DK091191
6 · The paper itself

Abstract

Clostridium difficile is a Gram-positive obligate anaerobic pathogen that causes pseudomembranous colitis in antibiotic-treated individuals. Commensal bacteria are known to have a significant role in the intestinal accumulation of C. difficile after antibiotic treatment, but little is known about how they affect host immunity during C. difficile infection. In this article, we report that C. difficile infection results in translocation of commensals across the intestinal epithelial barrier that is critical for neutrophil recruitment through the induction of an IL-1β-mediated positive-feedback loop. Mice lacking ASC, an essential mediator of IL-1β and IL-18 processing and secretion, were highly susceptible to C. difficile infection. ASC(-/-) mice exhibited enhanced translocation of commensals to multiple organs after C. difficile infection. Notably, ASC(-/-) mice exhibited impaired CXCL1 production and neutrophil influx into intestinal tissues in response to C. difficile infection. The impairment in neutrophil recruitment resulted in reduced production of IL-1β and CXCL1 but not IL-18. Importantly, translocated commensals were required for ASC/Nlrp3-dependent IL-1β secretion by neutrophils. Mice lacking IL-1β were deficient in inducing CXCL1 secretion, suggesting that IL-1β is the dominant inducer of ASC-mediated CXCL1 production during C. difficile infection. These results indicate that translocated commensals play a crucial role in CXCL1-dependent recruitment of neutrophils to the intestine through an IL-1β/NLRP3/ASC-mediated positive-feedback mechanism that is important for host survival and clearance of translocated commensals during C. difficile infection.

Indexed as

AnimalsBiological Transport, ActiveCell CommunicationCell Membrane PermeabilityClostridioides difficileEnterocolitis, PseudomembranousGastric MucosaInflammationInterleukin-1betaMiceMice, Inbred C57BLMice, KnockoutNeutrophilsSurvival AnalysisSymbiosisUp-RegulationInterleukin-1beta

Identifiers

PMID22888139
PMCPMC3752782
OpenAlexW2138818997

What OpenQuestion holds

Textmetadata
LicenceTDM
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.