Document Detail

TSG-6 produced by hMSCs delays the onset of autoimmune diabetes by suppressing Th1 development and enhancing tolerogenicity.
MedLine Citation:
PMID:  23349496     Owner:  NLM     Status:  Publisher    
Genetic and immunological screening for type 1 diabetes has led to the possibility of preventing disease in susceptible individuals. Here, we show that human Mesenchymal Stem/Stromal Cells (hMSCs) and TNF-α-stimulated gene 6 (TSG-6), a protein produced by hMSCs in response to signals from injured tissues, delayed the onset of spontaneous autoimmune diabetes in NOD mice by inhibiting insulitis and augmenting regulatory T cells (Tregs) within the pancreas. Importantly, hMSCs with a knockdown of tsg-6 were ineffective at delaying insulitis and the onset of diabetes in mice. TSG-6 inhibited the activation of both T cell and antigen presenting cells (APCs) in a CD44-dependent manner. Moreover, multiple treatments of TSG-6 rendered APCs more tolerogenic, capable of enhancing Treg generation and delaying diabetes in an adoptive transfer model. Therefore, these results could provide the basis for a novel therapy for the prevention of type 1 diabetes.
Daniel Jiro Kota; Lindsey L Wiggins; Nara Yoon; Ryanghwa Lee
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-24
Journal Detail:
Title:  Diabetes     Volume:  -     ISSN:  1939-327X     ISO Abbreviation:  Diabetes     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0372763     Medline TA:  Diabetes     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Texas A&M Health Science Center, College of Medicine, Temple, Texas, United States.
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