Evidence map›Paper›PMID 21304587›Full record

ArticlePloS one2011

Double-positive CD21+CD27+ B cells are highly proliferating memory cells and their distribution differs in mucosal and peripheral tissues.

Arpita Das, Huanbin Xu, Xiaolei Wang, Canddy L Yau, Ronald S Veazey, Bapi Pahar

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2011. 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
1.5field-weighted citation impact, top 20% 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, 35 citations in OpenAlex.

  1. Diverging in Vivo Immune Response Patterns After Oral Food Challenge in Peanut Allergic Adults.Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology · 2026
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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

6 authors at 1 institution in 1 country.

Arpita DasDivision of Microbiology, Tulane National Primate Research Center, Tulane University School of Medicine, Covington, Louisiana, United States of America.
Huanbin Xu
Xiaolei Wang
Canddy L Yau
Ronald S Veazey
Bapi Pahar
Tulane University · US

Funding

Tulane NPRC SPF Sheltered Outdoor Enclosure ExpansionP51OD011104 · OD · TULANE UNIVERSITY OF LOUISIANA · PI L Lee HAMM · 2012 to 2026
$142.4M
ZCM:A NOVEL BROAD-SPECTRUM MICROBICIDE FOR SEXUALLY TRANSMITTED INFECTIONSP51RR000164 · NCRR · TULANE UNIVERSITY OF LOUISIANA · PI VEAZEY, RONALD S. · 1985 to 2011
$100.1M
TNF AND MCP-1 IN RETROVIRUS-INDUCED BRAIN DISEASEP20RR020159 · NCRR · LOUISIANA STATE UNIV A&M COL BATON ROUGE · PI PAHAR, BAPI · 2004 to 2011
$16.1M
Importance of antigen specific immunoglobulin responses in controlling SIV/SHIV iR21AI080395 · NIAID · TULANE UNIVERSITY OF LOUISIANA · PI PAHAR, BAPI · 2009 to 2010
$454k
NCRR NIH HHS P20 RR020159NCRR NIH HHS P51 RR000164NCRR NIH HHS RR000164NIAID NIH HHS , R21 AI080395NIAID NIH HHS R21 AI080395
6 · The paper itself

Abstract

backgroundSeveral B-cell defects arise in HIV infected patients, particularly in patients with chronic infection and high viral load. Loss of memory B cells (CD27(+) B cells) in peripheral blood and lymphoid tissues is one of the major B cell dysfunctions in HIV and simian immunodeficiency virus (SIV) infection. Despite several studies, definitive identification of memory B cells based on CD27 surface expression has not been described. Similarly, the rates of cell turnover in different B cell subpopulation from lymphoid and mucosal tissues have not been well documented. In this study, we demonstrate the presence of memory B cell populations and define their distribution, frequency and immunophenotype with regards to activation, proliferation, maturation, and antibody production in normal rhesus macaques from different lymphoid tissues. METHODOLOGY/PRINCIPAL

findingsThirteen healthy, uninfected rhesus macaques were selected for this study. CD20(+) B cells were isolated from peripheral blood and sorted based on CD27 and CD21 surface markers to define memory B cell population. All the B cell subpopulation was further characterized phenotypically and their cell turnover rates were evaluated in vivo following bromodeoxyuridine (BrdU) inoculation. Double positive (DP) CD21(+)CD27(+) B cells in both peripheral and lymphoid tissues are memory B cells, able to produce antibody by polyclonal activation, and without T cell help. Peripheral and lymphoid DP CD21(+)CD27(+) B cells were also able to become activated and proliferate at higher rates than other B cell subpopulations. Increased turnover of tonsillar memory B cells were identified compared to other tissues examined. CONCLUSIONS/SIGNIFICANCE: We suggest that this DP memory B cells play a major role in the immune system and their function and proliferation might have an important role in HIV/SIV mediated B cell dysregulation and pathogenesis.

Indexed as

Cell ProliferationImmunologic MemoryReceptors, Complement 3dTumor Necrosis Factor Receptor Superfamily, Member 7AnimalsB-LymphocytesHaplorhiniHIVHIV InfectionsHumansMucous MembraneSimian Acquired Immunodeficiency SyndromeSimian Immunodeficiency VirusTissue DistributionReceptors, Complement 3dTumor Necrosis Factor Receptor Superfamily, Member 7

Identifiers

PMID21304587
PMCPMC3029363
OpenAlexW2042886209

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.