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The study suggests that refractory chronic alopecia areata cases have more infiltrating skin resident memory T cells, and using a JAK inhibitor may be an effective treatment option.

Chronic refractory alopecia areata has more skin-resident memory T cells, and JAK inhibitors may help reduce them.

This review explored recent research on the immune mechanisms and potential therapeutic targets for alopecia areata, highlighting the roles of immune-related cells, autocrine and paracrine signaling, as well as factors like adipose-derived stem cells and gut microbiota in disease pathogenesis.

In this study, single-cell sequencing revealed clonal expansions of CD4+ and CD8+ T cells in murine and human alopecia areata, supporting the development of predictive models for human disease.

The study found that adipose-derived mesenchymal stem cells obtained via laser-assisted liposuction with selective photo-stimulation are comparable in differentiation potential and tumorigenic risk to those from conventional liposuction for cell therapy applications.