Evidence map›Paper›PMID 17196657›Full record

ArticleMolecular immunology2007

Evidence for preferential Ig gene usage and differential TdT and exonuclease activities in human naïve and memory B cells.

Cuixia Tian, Grace K Luskin, Kevin M Dischert, James N Higginbotham, Bryan E Shepherd, James E Crowe

Abstract read
In one paragraph

Article in Molecular immunology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

28 citing papers in PubMed, 46 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Human memory B cells.Leukemia · 2016
    Review
  7. Large-scale sequence and structural comparisons of human naive and antigen-experienced antibody repertoires.Proceedings of the National Academy of Sciences of the United States of America · 2016
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Mouse marginal zone B cells harbor specificities similar to human broadly neutralizing HIV antibodies.Proceedings of the National Academy of Sciences of the United States of America · 2013
    Article
  15. Article
  16. Article
  17. Article
  18. Naive antibody gene-segment frequencies are heritable and unaltered by chronic lymphocyte ablation.Proceedings of the National Academy of Sciences of the United States of America · 2011
    Article
  19. Article
  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

6 authors at 1 institution in 1 country.

Cuixia TianDepartment of Pediatrics, Vanderbilt University Medical Center, 21st Avenue South, Nashville, TN 37232, USA.
Grace K Luskin
Kevin M Dischert
James N Higginbotham
Bryan E Shepherd
James E Crowe
Vanderbilt University Medical Center · US

Funding

Tumor Immunology and Microenvironment Research ProgramP30CA068485 · NCI · VANDERBILT UNIVERSITY MEDICAL CENTER · PI MATTHEW J TYSKA · 1995 to 2026
$172.8M
YOHIMBINE AS A MODEL OF ORTHOSTATIC INTOLERANCEM01RR000095 · NCRR · VANDERBILT UNIVERSITY · PI DRAKE, WONDER P. · 1985 to 2008
$38.3M
Vanderbilt Infection Pathogenesis and Epidemiology Research Training ProgramT32AI007474 · NIAID · VANDERBILT UNIVERSITY MEDICAL CENTER · PI KALAMS, SPYROS A · 1995 to 2025
$6.9M
Human Antibody Responses to RotavirusR01AI057933 · NIAID · VANDERBILT UNIVERSITY · PI CROWE, JAMES E · 2004 to 2007
$1.5M
NCI NIH HHS P30 CA068485NCI NIH HHS P30 CA68485NCRR NIH HHS M01 RR000095NCRR NIH HHS M01 RR-00095NIAID NIH HHS R01 AI057933NIAID NIH HHS R01 AI-57933NIAID NIH HHS T32 AI007474NIAID NIH HHS T32 AI-07474
6 · The paper itself

Abstract

Memory B cells and the antibodies they encode are important for protective immunity against infectious pathogens. Characterization of naïve and memory B cell antibody repertoires will elucidate the molecular basis for the generation of antibody diversity in human B cells and the optimization of antibody structures that bind microbial antigens. In this study we aimed to investigate the influence of antigenic selection on the antibody genes of the two CD27+ memory B cell subsets, comparing them with the naïve repertoire in CD27- cells. We analyzed and compared the Ig heavy chain gene transcripts in three recently defined circulating naïve and memory B cell subsets (CD19+IgD+CD27- [naïve], CD19+IgD+CD27+ [un-class-switched memory] or CD19+IgD- CD27+ [class-switched memory]) at the single cell level. We found similar biased patterns of variable, diversity and joining heavy chain gene usages in all three groups of cells. CD19+IgD+CD27+ memory B cells harbored as diverse an antibody gene repertoire as CD19+IgD-CD27+ memory B cells. Interestingly, CD19+IgD+CD27+ memory B cells possessed a lower frequency of somatic mutations, a higher incidence of exonuclease activity at the 3' end of D regions, and a lower frequency of N and P nucleotide additions at both VH-D and D-JH junctions of CDR3 regions compared to CD19+IgD-CD27+ memory B cells. These data suggest distinct functional mechanisms underlying selection of this unique subset of un-class-switched memory B cells.

Indexed as

AdultAmino Acid MotifsAnimalsAntigens, CD19Blood DonorsB-LymphocytesCell SeparationClone CellsComplementarity Determining RegionsDNA NucleotidylexotransferaseExonucleasesFlow CytometryGene Expression RegulationGenes, ImmunoglobulinHumansImmunoglobulin Heavy ChainsAntigens, CD19Complementarity Determining RegionsDNA NucleotidylexotransferaseExonucleasesImmunoglobulin Heavy ChainsImmunoglobulin IsotypesImmunoglobulin Variable RegionNucleotidesTumor Necrosis Factor Receptor Superfamily, Member 7

Identifiers

PMID17196657
PMCPMC1859862
OpenAlexW2007977124

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.