July 2024 in “Journal of Investigative Dermatology” This study found that in mice with alopecia areata, CD8+ T cells showed clonal expansion and specific regulatory networks, which might help identify new therapeutic targets for patients not responding to JAK inhibitors.
26 citations
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May 2020 in “JCI Insight” 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.
1 citations
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November 2018 in “immuneACCESS” This study found that in alopecia areata, treatment with the oral JAK-inhibitor tofacitinib decreased clonally expanded CD8⁺ T cells in the scalp, but many expanded clones did not completely disappear, potentially leading to relapse after stopping treatment.
33 citations
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October 2006 in “European Journal of Immunology” This study found that CD44 and CD49d together enhance signaling pathways in lymphocytes in mice with alopecia areata, influencing their activation and function.
November 2025 in “The Journal of Immunology” This study identified specific genes upregulated in skin γδ T cells involved in alopecia areata, with findings suggesting these cells contribute to disease pathogenesis through inflammatory and Th1 response mechanisms in mouse and possibly human skin.