Evidence map›Paper›PMID 22859611›Full record

ArticleBlood2012

Defective regulatory B-cell compartment in patients with immune thrombocytopenia.

Xiaojuan Li, Hui Zhong, Weili Bao, Nayla Boulad, Jessie Evangelista, Muhammad Anis Haider, James Bussel, Karina Yazdanbakhsh

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Blood, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed, 1 pooled it
8.7field-weighted citation impact, top 2% 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

66 citing papers in PubMed, 1 synthesis or guideline pooled it, 192 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Expansion of B10 cellsInternational journal of molecular medicine · 2025
    Review
  7. Article
  8. Article
  9. Review
  10. Review
  11. How we treat primary immune thrombocytopenia in adults.Journal of hematology & oncology · 2023
    Review
  12. Article
  13. Article
  14. Article
  15. Immune Status and Chemokine C Receptor 7 Expression in Primary in Patients with Immune ThrombocytopeniaTurkish journal of haematology : official journal of Turkish Society of Haematology · 2022
    Article
  16. Review
  17. Article
  18. Post-therapy B Regulatory Cells Might early Predict Relapse in Hodgkin Lymphoma.Mediterranean journal of hematology and infectious diseases · 2022
    Article
  19. Increasing numbers of CD19 + CD24International journal of hematology · 2021
    Article
  20. Article

6 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 2 countries.

Xiaojuan LiLaboratory of Complement Biology, New York Blood Center, NY, USA.
Hui Zhong
Weili Bao
Nayla Boulad
Jessie Evangelista
Muhammad Anis Haider
James Bussel
Karina Yazdanbakhsh
Cornell University · USNew York Blood Center · USSouthern Medical University · CN

Funding

Immunoregulatory responses in patients with ITPR01HL096497 · NHLBI · NEW YORK BLOOD CENTER · PI YAZDANBAKHSH, KARINA · 2009 to 2012
$1.6M
NHLBI NIH HHS HL096497-01NHLBI NIH HHS R01 HL096497
6 · The paper itself

Abstract

B lymphocytes producing antiplatelet autoantibodies play a major role in autoimmune thrombocytopenia (ITP). However, certain B cells, including the human CD19(+)CD24(hi)CD38(hi) subpopulation, possess regulatory functions mediated partly by IL-10. In a cohort of chronic ITP patients with low platelet counts who consisted of patients off treatment, we found a lower frequency of CD19(+)CD24(hi)CD38(hi) in the peripheral compartment of nonsplenectomized patients (P = .03). IL-10 expression after activation was decreased in all ITP circulating CD19(+) subpopulations (P < .03), and inhibition of monocyte TNF-α expression by activated B cells was reduced in patients with platelet numbers of < 50 × 10(9) cells/L (P = .001), indicating that regulatory B cells of patients with ITP are functionally impaired in their ability to dampen monocyte activation. Interestingly, in nonsplenectomized patients whose platelet counts were elevated after treatment with thrombopoietic agents, the frequency of CD19(+)CD24(hi)CD38(hi) B cells was increased compared with those before treatment (P = .02). Altogether, these data indicate a compromised regulatory B-cell compartment as an additional defect in immune regulation in patients with chronic ITP that may be restored in responders to thrombopoietic treatment.

Indexed as

AdolescentAdultAgedAged, 80 and overAntigen PresentationAntigens, CDBlood PlateletsB-Lymphocytes, RegulatoryCase-Control StudiesCells, CulturedFemaleFlow CytometryHumansInterleukin-10MaleMiddle AgedAntigens, CDInterleukin-10

Identifiers

PMID22859611
PMCPMC3476542
OpenAlexW2011497626

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.