SIRT7 Activates Quiescent Hair Follicle Stem Cells to Ensure Hair Growth in Mice

    July 2020 in “ EMBO journal
    Guo Li, Xiaolong Tang, Shuping Zhang, Meiling Jin, Ming Wang, Zhili Deng, Zuojun Liu, Minxian Qian, Wei Shi, Zimei Wang, Hongfu Xie, Ji Li, Baohua Liu
    TLDR SIRT7 protein is crucial for starting hair growth in mice.
    The study demonstrated that SIRT7 played a crucial role in activating quiescent hair follicle stem cells (HFSCs) to promote hair growth in mice. Mice lacking SIRT7 exhibited delayed hair growth and reduced HFSC activation, while overexpression of SIRT7 enhanced hair growth by promoting the degradation of NFATc1, a key regulator of HFSC quiescence. The findings suggested that SIRT7 could be a potential target for therapies aimed at treating hair loss and age-related hair dysfunction.
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