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In this review, researchers conclude that immune imbalance between regulatory and cytotoxic T cells, along with activation of IFN-γ–MHC and IL-15–NK pathways, disrupts hair follicle immune privilege, suggesting pivotal mechanisms in alopecia areata development and potential targets for immunotherapeutic interventions.

This paper discusses the evolving understanding of psoriasis pathogenesis with no new clinical findings; the authors highlight the role of T-cell plasticity and regulatory cells, calling for further clinical applications using single-cell technologies.

This study found that CD44 and CD49d together enhance signaling pathways in lymphocytes in mice with alopecia areata, influencing their activation and function.

Hair loss may link to weaker COVID-19 immunity, suggesting possible need for extra vaccine boost.

People with acne have more CD4+ immune cells in their skin than healthy people.