Abstract

Regulatory γδ T cells (γδTregs) may exert therapeutic effects under some experimental autoimmune disease (AID) conditions. This encouraged us to explore whether this this also applies to alopecia areata (AA), one of the most common human AIDs. Triple immunofluorescence (IF) staining was performed to determine the distribution of γδTregs in human skin presence of γδTregs on skin sections of AA patients. Autologous circulating human γδ Tregs were expanded and either co-cultured with organ-cultured, stressed human scalp hair follicles (HFs) ex vivo or injected into experimentally induced AA lesions on human scalp skin xenotransplants on SCID mice.

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