Expansion of Circulating T Follicular Helper Cells in Children with Acute Henoch-Schönlein Purpura

Henoch-Schönlein purpura (HSP) is a common systemic small vessel vasculitis in children with disorder autoimmune responses. T follicular helper (TFH) cells play crucial roles in regulating immune responses. The aim of our study was to investigate the probable role of TFH cells in the pathogenesis of...

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Main Authors: Jue Xie, Yan Liu, Lei Wang, Guoxiang Ruan, Huiming Yuan, Hong Fang, Jianyong Wu, Dawei Cui
Format: Article
Language:English
Published: Wiley 2015-01-01
Series:Journal of Immunology Research
Online Access:http://dx.doi.org/10.1155/2015/742535
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author Jue Xie
Yan Liu
Lei Wang
Guoxiang Ruan
Huiming Yuan
Hong Fang
Jianyong Wu
Dawei Cui
author_facet Jue Xie
Yan Liu
Lei Wang
Guoxiang Ruan
Huiming Yuan
Hong Fang
Jianyong Wu
Dawei Cui
author_sort Jue Xie
collection DOAJ
description Henoch-Schönlein purpura (HSP) is a common systemic small vessel vasculitis in children with disorder autoimmune responses. T follicular helper (TFH) cells play crucial roles in regulating immune responses. The aim of our study was to investigate the probable role of TFH cells in the pathogenesis of children with HSP. In this study, the frequency of circulating CXCR5+CD4+TFH cells with inducible costimulator (ICOS) expression in the children with acute HSP was significantly higher than that in healthy controls (HCs) but not CXCR5+CD4+TFH cells with programmed death-1 (PD-1) expression. Moreover, serum levels of IL-21 and IL-6 cytokines, IgA, and C3 in HSP children were also significantly higher than those in HCs. A positive correlation was observed between the frequencies of circulating ICOS+CXCR5+CD4+TFH cells and the serum IL-21 or IgA levels of acute HSP children, respectively. Additionally, the mRNA expression levels of interleukin- (IL-) 21, IL-6, and transcriptional factors (B-cell lymphoma-6, Bcl-6) were also significantly increased in peripheral blood from acute HSP children compared to HCs. Taken together, these findings suggest that TFH cells and associated molecules might play critical roles in the pathogenesis of HSP, which are possible therapeutic targets in HSP children.
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institution Kabale University
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spelling doaj-art-9c3a337bb5c04dd3ac340fad54b9a49a2025-02-03T06:14:09ZengWileyJournal of Immunology Research2314-88612314-71562015-01-01201510.1155/2015/742535742535Expansion of Circulating T Follicular Helper Cells in Children with Acute Henoch-Schönlein PurpuraJue Xie0Yan Liu1Lei Wang2Guoxiang Ruan3Huiming Yuan4Hong Fang5Jianyong Wu6Dawei Cui7Department of Blood Transfusion, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, ChinaDepartment of Blood Transfusion, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, ChinaDepartment of Blood Transfusion, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, ChinaDepartment of Blood Transfusion, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, ChinaDepartment of Blood Transfusion, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, ChinaDepartment of Dermatology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, ChinaKidney Disease Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, ChinaDepartment of Clinical Laboratory, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, ChinaHenoch-Schönlein purpura (HSP) is a common systemic small vessel vasculitis in children with disorder autoimmune responses. T follicular helper (TFH) cells play crucial roles in regulating immune responses. The aim of our study was to investigate the probable role of TFH cells in the pathogenesis of children with HSP. In this study, the frequency of circulating CXCR5+CD4+TFH cells with inducible costimulator (ICOS) expression in the children with acute HSP was significantly higher than that in healthy controls (HCs) but not CXCR5+CD4+TFH cells with programmed death-1 (PD-1) expression. Moreover, serum levels of IL-21 and IL-6 cytokines, IgA, and C3 in HSP children were also significantly higher than those in HCs. A positive correlation was observed between the frequencies of circulating ICOS+CXCR5+CD4+TFH cells and the serum IL-21 or IgA levels of acute HSP children, respectively. Additionally, the mRNA expression levels of interleukin- (IL-) 21, IL-6, and transcriptional factors (B-cell lymphoma-6, Bcl-6) were also significantly increased in peripheral blood from acute HSP children compared to HCs. Taken together, these findings suggest that TFH cells and associated molecules might play critical roles in the pathogenesis of HSP, which are possible therapeutic targets in HSP children.http://dx.doi.org/10.1155/2015/742535
spellingShingle Jue Xie
Yan Liu
Lei Wang
Guoxiang Ruan
Huiming Yuan
Hong Fang
Jianyong Wu
Dawei Cui
Expansion of Circulating T Follicular Helper Cells in Children with Acute Henoch-Schönlein Purpura
Journal of Immunology Research
title Expansion of Circulating T Follicular Helper Cells in Children with Acute Henoch-Schönlein Purpura
title_full Expansion of Circulating T Follicular Helper Cells in Children with Acute Henoch-Schönlein Purpura
title_fullStr Expansion of Circulating T Follicular Helper Cells in Children with Acute Henoch-Schönlein Purpura
title_full_unstemmed Expansion of Circulating T Follicular Helper Cells in Children with Acute Henoch-Schönlein Purpura
title_short Expansion of Circulating T Follicular Helper Cells in Children with Acute Henoch-Schönlein Purpura
title_sort expansion of circulating t follicular helper cells in children with acute henoch schonlein purpura
url http://dx.doi.org/10.1155/2015/742535
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