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Proportion of T Follicular Helper Cells in Peripheral Blood of Rheumatoid Arthritis Patients: A Systematic Review and Meta-Analysis Publisher Pubmed



Bemani P1 ; Eklund KK2 ; Alihassanzadeh M3 ; Kabelitz D4 ; Schmidt RE5 ; Meri S6 ; Kalantar K7
Authors
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Authors Affiliations
  1. 1. Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
  2. 2. Department of Medicine, Division of Rheumatology, Helsinki University Central Hospital, Helsinki, Finland
  3. 3. Department of Immunology, School of Medicine, Jiroft University of Medical Sciences, Jiroft, Iran
  4. 4. Institute of Immunology, University of Kiel, Germany
  5. 5. Klinik Fur Immunologie Und Rheumatologie, Medizinische Hochschule Hannover (MHH), Hannover, Germany
  6. 6. Department of Bacteriology Immunology, Translational Immunology Research Program (TRIMM), University of Helsinki, Helsinki, Finland
  7. 7. Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran

Source: Expert Review of Clinical Immunology Published:2021


Abstract

Introduction:Alterations in the levels and activity of Tfh may lead to impaired immune tolerance and autoimmune diseases. The aim of this study was to investigate the proportion and types of Tfh cells in the peripheral blood (PB) of RA patients. Areas covered:Comprehensive databases were searched for studies evaluating the proportion of Tfh cells in the PB of patients with RA compared to healthy control (HCs). The proportion of Tfh cells in RA patients was significantly higher than in HCs (SMD 0.699, [0.513, 0.884], p < 0.0001). Furthermore, Tfh cells proportion in untreated-RA and early-RA patients was markedly greater than HCs, when comparisons done without considering the definition markers, and also when Tfh cells were defined by the specified definition markers. While the proportion of Tfh cells by all definitions was higher in active-RA compared to HCs, analysis of two definitions, CD4+CXCR5+ and CD4+CXCR5+ICOS+, didn’t show significant differences. Furthermore, higher proportion of Tfh cells defined by all definitions and a specified definition (CD4+CXCR5+PD-1high) was observed when S+RA compared to S−RA patients. Expert opinion:The results demonstrate that circulating Tfh are highly elevated in RA patients highlights its potential use as a biomarker and a target for RA therapy. © 2021 Informa UK Limited, trading as Taylor & Francis Group.
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