Pro-Inflammatory Cytokine Cascade in Human Plucked Hair

    Yann F. Mahé, Bruno Buan, Nelly Billoni, G. Loussouarn, Jean‐François Michelet, Brigitte Gautier, Brigitte Bernard
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    Studysummary Anti-IL-1 treatments might help with certain types of hair loss in people with high inflammation.
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    The study "FC053 Pro-inflammatory cytokine cascade in human plucked hair" demonstrated that freshly plucked human anagen hair expressed both type 1 and type 2 IL-1-Receptors mRNAs. The functional IL-1-Receptor type 1, when stimulated with IL-1a, induced mRNAs for inflammatory cytokines IL-1B, TNFα, IL-6, and chemokines MCAF, MCP-3, and IL-8. Additionally, IL-1a dose-dependently inhibited the growth of dissected human anagen hairs in vitro. A rapid assay identified that 33% of 116 volunteers had high inflammatory potential in their hair follicles. These findings suggested that anti-IL-1 strategies could be therapeutically relevant for treating Alopecia Areata and Alopecia Androgenetica in highly inflammatory individuals.
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