Increased Number of OKT6-Positive Dendritic Cells in the Hair Follicles of Patients with Alopecia Areata

    January 1985 in “ Dermatology
    Akira Kohchiyama, Atsushi Hatamochi, Hiroaki Ueki
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    Studysummary This study reports that OKT6-positive dendritic cells increase in hair follicles during progressive alopecia areata, suggesting a potential role in disease pathogenesis through interaction with T cells.
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    In a study involving 18 individuals, researchers found that patients with progressive alopecia areata had a significantly higher percentage (4.9 ± 0.3%) of OKT6-positive dendritic cells in both the upper portions and bulbar area of hair follicles compared to controls (1.0 ± 0.1%) and those in the stationary stage (1.1 ± 0.1%). This suggests that these dendritic cells, in cooperation with T cells, may play a crucial role in the pathogenesis of alopecia areata.
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