Evidence map›Paper›PMID 34424963›Full record

ArticleBlood2022

T-follicular helper cell expansion and chronic T-cell activation are characteristic immune anomalies in Evans syndrome.

Deepak Kumar, Chengyu Prince, Carolyn M Bennett, Michael Briones, Laura Lucas, Athena Russell, Kiran Patel, Satheesh Chonat, Sara Graciaa, Holly Edington and 11 more

Open access · bronzeAbstract read
In one paragraph

Article in Blood, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 2 pooled it
1.6field-weighted citation impact, top 17% 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

24 citing papers in PubMed, 2 syntheses or guidelines pooled it, 33 citations in OpenAlex.

  1. Red flags to suspect inborn errors of immunity in patients with autoimmune diseasesBiomedica : revista del Instituto Nacional de Salud · 2024
    Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Review
  6. Article
  7. T follicular helper cells in primary immune regulatory disorders.The Journal of allergy and clinical immunology · 2025
    Review
  8. Article
  9. T-cell and autoantibody profiling for primary immune regulatory disorders.The Journal of allergy and clinical immunology · 2025
    Article
  10. Review
  11. Article
  12. Review
  13. Review
  14. Article
  15. Frequency of HLA-DRThe Journal of allergy and clinical immunology · 2024
    Article
  16. Article
  17. Article
  18. Clinical utility of measuring CD4Journal of autoimmunity · 2023
    Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

21 authors at 5 institutions in 1 country.

Deepak KumarAflac Cancer and Blood Disorder Center, Department of Pediatrics, Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA.
Chengyu PrinceAflac Cancer and Blood Disorder Center, Department of Pediatrics, Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA.
Carolyn M BennettAflac Cancer and Blood Disorder Center, Department of Pediatrics, Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA.
Michael BrionesAflac Cancer and Blood Disorder Center, Department of Pediatrics, Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA.
Laura LucasAflac Cancer and Blood Disorder Center, Children's Healthcare of Atlanta, Atlanta; GA.
Athena RussellGenetics and Molecular Biology Graduate Program, Laney Graduate School, Emory University, Atlanta, GA.ORCID 0000-0001-5478-921X
Kiran PatelAllergy/Immunology Section, Department of Pediatrics, Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA.
Satheesh ChonatAflac Cancer and Blood Disorder Center, Department of Pediatrics, Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA.ORCID 0000-0002-5909-0800
Sara GraciaaAflac Cancer and Blood Disorder Center, Children's Healthcare of Atlanta, Atlanta; GA.
Holly EdingtonAflac Cancer and Blood Disorder Center, Department of Pediatrics, Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA.ORCID 0000-0001-7315-5917
Michael H WhiteAflac Cancer and Blood Disorder Center, Department of Pediatrics, Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA.ORCID 0000-0002-8638-8741
Lisa KobrynskiAllergy/Immunology Section, Department of Pediatrics, Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA.
Manar AbdalganiChildren's Minnesota, Minneapolis, MN.
Suhag ParikhAflac Cancer and Blood Disorder Center, Department of Pediatrics, Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA.ORCID 0000-0002-6066-9852
Sharat ChandraDivision of Bone Marrow Transplantation and Immune Deficiency, University of Cincinnati, Cincinnati Children's Hospital Medical Center, Cincinnati, OH.ORCID 0000-0002-2933-814X
Jack BleesingDivision of Bone Marrow Transplantation and Immune Deficiency, University of Cincinnati, Cincinnati Children's Hospital Medical Center, Cincinnati, OH.
Rebecca MarshDivision of Bone Marrow Transplantation and Immune Deficiency, University of Cincinnati, Cincinnati Children's Hospital Medical Center, Cincinnati, OH.
Sunita ParkDepartment of Pathology, Children's Healthcare of Atlanta, Atlanta, GA.
Edmund K WallerDepartment of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, GA; and.ORCID 0000-0003-0816-6729
Sampath PrahaladDivision of Pediatric Rheumatology, Department of Pediatrics, Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA.ORCID 0000-0003-3489-1756
Shanmuganathan ChandrakasanAflac Cancer and Blood Disorder Center, Department of Pediatrics, Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA.ORCID 0000-0001-8007-9932
Emory University · USCincinnati Children's Hospital Medical Center · USAflac (United States) · USChildren's Healthcare of Atlanta · USMinnesota West Community & Technical College · US

Funding

Training of Clinical Investigators in Primary Immune DeficienciesU54AI082973 · NIAID · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI PUCK, JENNIFER M. · 2009 to 2023
$23.3M
Atlanta Pediatric Scholars ProgramK12HD072245 · NICHD · EMORY UNIVERSITY · PI Shari Barkin · 2012 to 2026
$5.5M
Targeted non-genotoxic hematopoietic stem cell transplant conditioning approachK08HL141635 · NHLBI · EMORY UNIVERSITY · PI CHANDRAKASAN, SHANMUGANATHAN · 2019 to 2023
$815k
NHLBI NIH HHS K08 HL141635NIAID NIH HHS U54 AI082973NICHD NIH HHS K12 HD072245
6 · The paper itself

Abstract

Pediatric Evans syndrome (pES) is increasingly identified as the presenting manifestation of several inborn errors of immunity. Despite an improved understanding of genetic defects in pES, the underlying immunobiology of pES is poorly defined, and characteristic diagnostic immune parameters are lacking. We describe the immune characteristics of 24 patients with pES and compared them with 22 patients with chronic immune thrombocytopenia (cITP) and 24 healthy controls (HCs). Compared with patients with cITP and HC, patients with pES had increased circulating T-follicular helper cells (cTfh), increased T-cell activation, and decreased naïve CD4+ T cells for age. Despite normal or high immunoglobulin G (IgG) in most pES at presentation, class-switched memory B cells were decreased. Within the cTfh subset, we noted features of postactivation exhaustion with upregulation of several canonical checkpoint inhibitors. T-cell receptor β chain (TCR-β) repertoire analysis of cTfh cells revealed increased oligoclonality in patients with pES compared with HCs. Among patients with pES, those without a known gene defect had a similar characteristic immune abnormality as patients with defined genetic defects. Similarly, patients with pES with normal IgG had similar T-cell abnormalities as patients with low IgG. Because genetic defects have been identified in less than half of patients with pES, our findings of similar immune abnormalities across all patients with pES help establish a common characteristic immunopathology in pES, irrespective of the underlying genetic etiology.

Indexed as

Lymphocyte ActivationAdolescentAdultAnemia, Hemolytic, AutoimmuneChildChild, PreschoolFemaleHumansInfantMalePurpura, Thrombocytopenic, IdiopathicThrombocytopeniaT-Lymphocytes, Helper-InducerYoung Adult

Identifiers

PMID34424963
PMCPMC8777200
OpenAlexW3195839423

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.