Evidence map›Paper›PMID 17658280›Full record

ArticleImmunity2007

Class switch recombination and somatic hypermutation in early mouse B cells are mediated by B cell and Toll-like receptors.

Jin-Hwan Han, Shizuo Akira, Kathryn Calame, Bruce Beutler, Erik Selsing, Thereza Imanishi-Kari

Open access · bronzeAbstract read
In one paragraph

Article in Immunity, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 85 papers.

0numbers the graph read from it
0cells of the map it votes in
85citing papers in PubMed
3.2field-weighted citation impact, top 7% 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

85 citing papers in PubMed, 135 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
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  7. The mechanisms of human lymphoid chromosomal translocations and their medical relevance.Critical reviews in biochemistry and molecular biology · 2022
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  9. Recurrent NovelFrontiers in oncology · 2022
    Article
  10. Article
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  12. Article
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  14. Review
  15. Review
  16. Article
  17. Article
  18. Article
  19. The Plasticity of Newly Formed B Cells.Journal of immunology (Baltimore, Md. : 1950) · 2019
    Review
  20. Article

25 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 4 institutions in 2 countries.

Jin-Hwan HanProgram in Immunology and Department of Pathology, Sackler School of Graduate Biomedical Sciences and Tufts University School of Medicine, Boston, MA 02111, USA.
Shizuo Akira
Kathryn Calame
Bruce Beutler
Erik Selsing
Thereza Imanishi-Kari
Tufts University · USColumbia University · USOsaka University · JPScripps Research Institute · US

Funding

TLR4 AS AN LPS SENSOR AND SUSCEPTIBILITY LOCUSR01GM060031 · NIGMS · SCRIPPS RESEARCH INSTITUTE, THE · PI BEUTLER, BRUCE A · 2000 to 2007
$4.5M
IMMUNITY IN TRANSGENIC MICER01AI024465 · NIAID · TUFTS UNIVERSITY BOSTON · PI SELSING, ERIK · 1987 to 2010
$3.8M
B LYMPHOCYTE INDUCED MATURATION PROTEINR01AI043576 · NIAID · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI CALAME, KATHRYN L. · 1998 to 2007
$2.7M
B CELL DEVELOPMENT AND SELECTIONR01AI045104 · NIAID · TUFTS UNIVERSITY BOSTON · PI IMANISHI-KARI, THEREZA · 2000 to 2004
$1.5M
NIAID NIH HHS R01 AI024465NIAID NIH HHS R01 AI045104NIAID NIH HHS R01AI24465NIAID NIH HHS R01AI43576NIAID NIH HHS R01AI45104NIGMS NIH HHS R01GM060031
6 · The paper itself

Abstract

Activation-induced cytidine deaminase (AID) is required for immunoglobulin (Ig) gene class switch recombination (CSR), somatic hypermutation (SHM), and somatic hyperconversion. In general, high AID expression is found in mature B cells that are responding to antigens. However, AID expression and SHM have also been detected in developing B cells from transgenic mice that have a limited Ig repertoire. Here we demonstrate that AID expression, ongoing CSR, and active SHM occur in developing B cells from wild-type mice. Further, our results suggest that somatic variants arising from developing B cells in the bone marrow further diversify in the spleen of unimmunized mice. AID expression in developing B cells is T cell independent but involves engagement of B cell receptors and Toll-like receptors. Early AID expression can increase the preimmune repertoire of developing B cells, may provide an innate population of IgG- and IgA-expressing cells, and could be involved in receptor editing of self-reactive immature B cells.

Indexed as

AnimalsB-LymphocytesCytidine DeaminaseImmunoglobulin Class SwitchingMiceMice, Inbred BALB CMice, Inbred C57BLMice, Inbred CBAMice, KnockoutMice, NudeReceptors, Antigen, B-CellRecombination, GeneticSomatic Hypermutation, ImmunoglobulinToll-Like ReceptorsCytidine DeaminaseReceptors, Antigen, B-CellToll-Like Receptors

Identifiers

PMID17658280
PMCPMC2082107
OpenAlexW2124571174

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.