RRC ID 66753
Author Shimokawa C, Kato T, Takeuchi T, Ohshima N, Furuki T, Ohtsu Y, Suzue K, Imai T, Obi S, Olia A, Izumi T, Sakurai M, Arakawa H, Ohno H, Hisaeda H.
Title CD8+ regulatory T cells are critical in prevention of autoimmune-mediated diabetes.
Journal Nat Commun
Abstract Type 1 diabetes (T1D) is an autoimmune disease in which insulin-producing pancreatic β-cells are destroyed. Intestinal helminths can cause asymptomatic chronic and immunosuppressive infections and suppress disease in rodent models of T1D. However, the underlying regulatory mechanisms for this protection are unclear. Here, we report that CD8+ regulatory T (Treg) cells prevent the onset of streptozotocin -induced diabetes by a rodent intestinal nematode. Trehalose derived from nematodes affects the intestinal microbiota and increases the abundance of Ruminococcus spp., resulting in the induction of CD8+ Treg cells. Furthermore, trehalose has therapeutic effects on both streptozotocin-induced diabetes and in the NOD mouse model of T1D. In addition, compared with healthy volunteers, patients with T1D have fewer CD8+ Treg cells, and the abundance of intestinal Ruminococcus positively correlates with the number of CD8+ Treg cells in humans.
Volume 11(1)
Pages 1922
Published 2020-4-22
DOI 10.1038/s41467-020-15857-x
PII 10.1038/s41467-020-15857-x
PMID 32321922
PMC PMC7176710
MeSH Animals CD8-Positive T-Lymphocytes / immunology* Clostridiales Diabetes Mellitus, Experimental / immunology* Diabetes Mellitus, Experimental / prevention & control Diabetes Mellitus, Type 1 / immunology* Diabetes Mellitus, Type 1 / prevention & control Disease Models, Animal Faecalibacterium prausnitzii Female Gastrointestinal Microbiome Humans Immunosuppressive Agents Insulin-Secreting Cells / immunology* Male Mice Mice, Inbred C57BL Mice, Inbred NOD RNA, Ribosomal, 16S / metabolism Ruminococcus T-Lymphocytes, Regulatory / immunology* Trehalose / pharmacology
Resource
General Microbes JCM6515 JCM31915