Evidence map›Paper›PMID 22430734›Full record

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

C5aR expression in a novel GFP reporter gene knockin mouse: implications for the mechanism of action of C5aR signaling in T cell immunity.

Jason Dunkelberger, Lin Zhou, Takashi Miwa, Wen-Chao Song

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 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
2.0field-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

29 citing papers in PubMed, 60 citations in OpenAlex.

  1. Article
  2. Uncovering mechanisms underlying complement-mediated cancer immune evasion.Molecular therapy : the journal of the American Society of Gene Therapy · 2024
    Article
  3. Blockade of C5a receptor unleashes tumor-associated macrophage antitumor response and enhances CXCL9-dependent CD8Molecular therapy : the journal of the American Society of Gene Therapy · 2024
    Article
  4. Article
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  6. Article
  7. Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Complement and the Regulation of T Cell Responses.Annual review of immunology · 2018
    Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
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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.

Jason DunkelbergerDepartment of Pharmacology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
Lin Zhou
Takashi Miwa
Wen-Chao Song
University of Pennsylvania · US

Funding

BIOLOGY OF DECAY ACCELERATING FACTORR01AI044970 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI SONG, WENCHAO · 2000 to 2014
$4.9M
Complement Regulatory Proteins and Autoimmune DiseaseR01AI049344 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI SONG, WENCHAO · 2002 to 2011
$3.3M
Regulation of Toll-like receptor signaling by complementR01GM092108 · NIGMS · UNIVERSITY OF PENNSYLVANIA · PI SONG, WENCHAO · 2009 to 2012
$1.3M
Complement Regulatory Proteins and Autoimmune DiseaseR21AI049344 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI SONG, WENCHAO · 2001 to 2001
$302k
NIAID NIH HHS AI44970NIAID NIH HHS AI49344NIAID NIH HHS R01 AI044970NIAID NIH HHS R01 AI049344NIAID NIH HHS R21 AI049344NIGMS NIH HHS GM92108NIGMS NIH HHS R01 GM092108
6 · The paper itself

Abstract

C5aR is a G protein-coupled receptor for the anaphylatoxin C5a and mediates many proinflammatory reactions. C5aR signaling also has been shown to regulate T cell immunity, but its sites and mechanism of action in this process remain uncertain. In this study, we created a GFP knockin mouse and used GFP as a surrogate marker to examine C5aR expression. GFP was knocked into the 3'-untranslated region of C5ar1 by gene targeting. We show that GFP is expressed highly on Gr-1(+)CD11b(+) cells in the blood, spleen, and bone marrow and moderately on CD11b(+)F4/80(+) circulating leukocytes and elicited peritoneal macrophages. No GFP is detected on resting or activated T lymphocytes or on splenic myeloid or plasmacytoid dendritic cells. In contrast, 5-25% cultured bone marrow-derived dendritic cells expressed GFP. Interestingly, GFP knockin prevented cell surface but not intracellular C5aR expression. We conclude that C5aR is unlikely to play an intrinsic role on murine T cells and primary dendritic cells. Instead, its effect on T cell immunity in vivo may involve CD11b(+)F4/80(+) or other C5aR-expressing leukocytes. Further, our data reveal a surprising role for the 3'-untranslated region of C5aR mRNA in regulating C5aR protein targeting to the plasma membrane.

Indexed as

3' Untranslated RegionsAnimalsBone Marrow CellsCD11b AntigenCell MovementFemaleGene ExpressionGene Knock-In TechniquesGenes, ReporterGreen Fluorescent ProteinsImmunity, CellularMacrophagesMaleMiceMice, TransgenicReceptor, Anaphylatoxin C5a3' Untranslated RegionsCD11b AntigenGreen Fluorescent ProteinsReceptor, Anaphylatoxin C5a

Identifiers

PMID22430734
PMCPMC3324670
OpenAlexW2103577441

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.