Roles of the Hedgehog Signaling Pathway in Epidermal and Hair Follicle Development, Homeostasis, and Cancer

    November 2017 in “ Journal of developmental biology
    Yoshinori Abe, Nobuyuki Tanaka
    TLDR The Hedgehog signaling pathway is important for skin and hair growth and can lead to cancer if it doesn't work right.
    The document discussed the critical roles of the Hedgehog (HH) signaling pathway in the development, maintenance, and pathology of the epidermis and hair follicles. It highlighted the pathway's essential functions in hair follicle morphogenesis, homeostasis, and stem cell maintenance, with disruptions leading to conditions like alopecia and epidermal hyperplasia. The pathway's dysregulation was linked to skin cancers, particularly basal cell carcinoma, with mutations in components like PTCH1, SMO, and SUFU driving tumorigenesis. The study emphasized the complex interplay between HH signaling and other pathways, such as Wnt, BMP, and Notch, and underscored the potential for targeting HH signaling in therapeutic strategies for skin-related conditions.
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