MSC-derived Extracellular Vesicles Attenuate Immune Responses in Two Autoimmune Murine Models: Type 1 Diabetes and Uveoretinitis

Stem Cell Reports
Taeko Shigemoto-KurodaRyang Hwa Lee

Abstract

Accumulating evidence shows that extracellular vesicles (EVs) produced by mesenchymal stem/stromal cells (MSCs) exert their therapeutic effects in several disease models. We previously demonstrated that MSCs suppress autoimmunity in models of type 1 diabetes (T1D) and experimental autoimmune uveoretinitis (EAU). Therefore, here, we investigated the therapeutic potential of MSC-derived EVs using our established mouse models for autoimmune diseases affecting the pancreas and the eye: T1D and EAU. The data demonstrate that MSC-derived EVs effectively prevent the onset of disease in both T1D and EAU. In addition, the mixed lymphocyte reaction assay with MSC-derived EVs indicated that EVs inhibit activation of antigen-presenting cells and suppress development of T helper 1 (Th1) and Th17 cells. These results raise the possibility that MSC-derived EVs may be an alternative to cell therapy for autoimmune disease prevention.

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Methods Mentioned

BETA
PCR
ELISAs
ELISA
flow cytometry

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