Dissecting the Impact of α-MSH-MC1R-cAMP Signaling on UVA-Induced Stress in Fibroblasts: Implications for Regulation of Cutaneous Photoaging

    January 2026 in “ Aging and Disease ”
    Markus Böhm, Agatha Stegemann, Agnieszka Wolnicka-Głubisz … Lionel Larue
    Studysummary This study found that, despite confirming MC1R expression and functional cAMP signalling, α-MSH treatment did not alleviate UVA-induced stress in adult dermal fibroblasts, suggesting that α-MSH-MC1R may not directly protect against UVA-induced photoaging in these cells.
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