TIM-1 defines a human regulatory B cell population that is altered in frequency and function in systemic sclerosis patients

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• 作者：Octavio Aravena ; Ashley Ferrier ; Madhvi Menon…
• 关键词：Regulatory B cells ; TIM ; 1 ; Systemic sclerosis ; IL ; 10
• 刊名：Arthritis Research & Therapy
• 出版年：2017
• 出版时间：December 2017
• 年：2017
• 卷：19
• 期：1
• 全文大小：1513KB
• 刊物主题：Rheumatology; Orthopedics;
• 出版者：BioMed Central
• ISSN：1478-6362
• 卷排序：19

文摘

BackgroundSystemic sclerosis (SSc) is a systemic autoimmune disease characterized by excessive production of extracellular matrix by fibroblasts on skin and internal organs. Although Th2 cells have been involved in fibroblast stimulation, hyperactivated B cells may also play an important role. Regulatory B cells (Bregs) are cells capable of inhibiting inflammatory responses and controlling autoimmune diseases. Although many Breg populations have in common the ability to produce high amounts of IL-10, a unique surface marker defining most human Bregs is lacking. It has been described in mice that T cell Ig and mucin domain protein 1 (TIM-1) is an inclusive marker for Bregs, and that TIM-1+ B cells are able to prevent the development of autoimmunity. The aim of this work was to evaluate TIM-1 as a marker for human IL-10+ Bregs, and to determine whether TIM-1+ B cells are defective in SSc patients.