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IL-10-Producing Regulatory B10 Cells Ameliorate Collagen-Induced Arthritis via Suppressing Th17 Cell Generation.
MedLine Citation:
PMID:  22538089     Owner:  NLM     Status:  Publisher    
IL-10-producing CD1d(hi)CD5(+) B cells, also known as B10 cells, have been shown to possess a regulatory function in the inhibition of immune responses, but whether and how B10 cells suppress the development of autoimmune arthritis remain largely unclear. In this study, we detected significantly decreased numbers of IL-10-producing B cells, but increased Th17 cells in both spleen and draining lymph nodes of mice during the acute stage of collagen-induced arthritis when compared with adjuvant-treated control mice. On adoptive transfer of in vitro expanded B10 cells, collagen-immunized mice showed a marked delay of arthritis onset with reduced severity of both clinical symptoms and joint damage, accompanied by a substantial reduction in the number of Th17 cells. To determine whether B10 cells directly inhibit the generation of Th17 cells in culture, CFSE-labeled naive CD4(+) T cells were co-cultured with B10 cells. These B10 cells suppressed Th17 cell differentiation via the reduction of STAT3 phosphorylation and RORγt expression. Moreover, Th17 cells showed significantly decreased proliferation when co-cultured with B10 cells. Although adoptive transfer of Th17 cells triggered the development of collagen-induced arthritis in IL-17(-/-)DBA mice, co-transfer of B10 cells with Th17 cells profoundly delayed the onset of arthritis. Thus, our findings suggest a novel regulatory role of B10 cells in arthritic progression via the suppression of Th17 cell generation.
Min Yang; Jun Deng; Yang Liu; King-Hung Ko; Xiaohui Wang; Zhijun Jiao; Shengjun Wang; Zichun Hua; Lingyun Sun; Gopesh Srivastava; Chak-Sing Lau; Xuetao Cao; Liwei Lu
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-4-23
Journal Detail:
Title:  The American journal of pathology     Volume:  -     ISSN:  1525-2191     ISO Abbreviation:  -     Publication Date:  2012 Apr 
Date Detail:
Created Date:  2012-4-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370502     Medline TA:  Am J Pathol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 American Society for Investigative Pathology. Published by Elsevier Inc. All rights reserved.
Department of Pathology and Center of Infection and Immunology, University of Hong Kong, Hong Kong, China; Zhenjiang Key Laboratory of Medical Immunology, School of Medical Science and Laboratory Medicine, Jiangsu University, Zhenjiang, China.
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