Evidence map›Paper›PMID 24981453›Full record

ArticleJournal of immunology (Baltimore, Md. : 1950)2014

The receptor for the complement C3a anaphylatoxin (C3aR) provides host protection against Listeria monocytogenes-induced apoptosis.

Stacey L Mueller-Ortiz, John E Morales, Rick A Wetsel

Open access · bronzeAbstract read
In one paragraph

Article in Journal of immunology (Baltimore, Md. : 1950), 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.1field-weighted citation impact, top 14% 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

22 citing papers in PubMed, 35 citations in OpenAlex.

  1. Review
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  3. Article
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  5. Article
  6. Review
  7. Review
  8. Review
  9. Article
  10. Article
  11. Innate and Adaptive Immune Responses duringMicrobiology spectrum · 2019
    Article
  12. Intracellular C3 Protects Human Airway Epithelial Cells from Stress-associated Cell Death.American journal of respiratory cell and molecular biology · 2019
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Applying complement therapeutics to rare diseases.Clinical immunology (Orlando, Fla.) · 2015
    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

3 authors at 2 institutions in 1 country.

Stacey L Mueller-OrtizBrown Foundation Institute of Molecular Medicine, Research Center for Immunology and Autoimmune Diseases, University of Texas Medical School at Houston, Houston, TX 77030; and.
John E MoralesBrown Foundation Institute of Molecular Medicine, Research Center for Immunology and Autoimmune Diseases, University of Texas Medical School at Houston, Houston, TX 77030; and.
Rick A WetselBrown Foundation Institute of Molecular Medicine, Research Center for Immunology and Autoimmune Diseases, University of Texas Medical School at Houston, Houston, TX 77030; and Department of Biochemistry and Molecular Biology, University of Texas Medical School at Houston, Houston, TX 77030 Rick.A.Wetsel@uth.tmc.edu.
Brown Foundation · USTexas Medical Center · US

Funding

MURINE COMPLEMENT C5 DEFICIENCY--MOLECULAR BASISR01AI025011 · NIAID · WASHINGTON UNIVERSITY · PI WETSEL, RICK A. · 1987 to 2017
$4.6M
NIAID NIH HHS R01 AI025011
6 · The paper itself

Abstract

Listeria monocytogenes is a Gram-positive intracellular bacterium that is acquired through tainted food and may lead to systemic infection and possible death. Despite the importance of the innate immune system in fighting L. monocytogenes infection, little is known about the role of complement and its activation products, including the potent C3a anaphylatoxin. In a model of systemic L. monocytogenes infection, we show that mice lacking the receptor for C3a (C3aR(-/-)) are significantly more sensitive to infection compared with wild-type mice, as demonstrated by decreased survival, increased bacterial burden, and increased damage to their livers and spleens. The inability of the C3aR(-/-) mice to clear the bacterial infection was not caused by defective macrophages or by a reduction in cytokines/chemokines known to be critical in the host response to L. monocytogenes, including IFN-γ and TNF-α. Instead, TUNEL staining, together with Fas, active caspase-3, and Bcl-2 expression data, indicates that the increased susceptibility of C3aR(-/-) mice to L. monocytogenes infection was largely caused by increased L. monocytogenes-induced apoptosis of myeloid and lymphoid cells in the spleen that are required for ultimate clearance of L. monocytogenes, including neutrophils, macrophages, dendritic cells, and T cells. These findings reveal an unexpected function of C3a/C3aR signaling during the host immune response that suppresses Fas expression and caspase-3 activity while increasing Bcl-2 expression, thereby providing protection to both myeloid and lymphoid cells against L. monocytogenes-induced apoptosis.

Indexed as

AnimalsApoptosisApoptosis Regulatory ProteinsCaspase 3Caspase InhibitorsComplement C3aDisease Models, AnimalDown-Regulationfas ReceptorImmunosuppressive AgentsListeria monocytogenesListeriosisLymphocytesMaleMiceMice, Inbred C57BLApoptosis Regulatory ProteinsCaspase 3Caspase InhibitorsComplement C3acomplement C3a receptorFas protein, mousefas ReceptorImmunosuppressive AgentsProto-Oncogene Proteins c-bcl-2Receptors, Complement

Identifiers

PMID24981453
PMCPMC4122265
OpenAlexW1645772311

What OpenQuestion holds

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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.