November 2025 in “Journal of Investigative Dermatology” BTNL2 helps protect hair follicles from immune attacks.
November 2025 in “The Journal of Immunology” This study observed that in human scalp hair follicles, BTNL2 expression is lower in stressed conditions, which correlates with increased cytotoxic activity by gamma/delta and CD8+ T cells, suggesting a possible role for BTNL2 in controlling immune responses relevant to alopecia areata.
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September 2023 in “Science” This study found that the restoration of CD103⁺γδ T cells in humans is associated with sustained remission in inflammatory bowel disease, suggesting a conserved role for these cells in limiting disease progression.
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January 2013 in “PLoS ONE” This study identified several significant genetic variants associated with alopecia universalis, including a novel association with HLA-DRB5, which may play a hidden role in the disease.