MiR-27a Targeting PIK3R3 Regulates the Proliferation and Apoptosis of Sheep Hair Follicle Stem Cells

    December 2022 in “ Animals
    Min Yu, Lanlan Li, Meng Li, Lei Wang, Xiaoxiao Gao, Lisheng Zhou, Nan Liu, Jianning He
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    TLDR Blocking miR-27a increases sheep hair follicle stem cell growth and decreases cell death, which could help improve wool quality and treat hair loss.
    The study "miR-27a Targeting PIK3R3 Regulates the Proliferation and Apoptosis of Sheep Hair Follicle Stem Cells" found that miR-27a, a type of microRNA, plays a significant role in the proliferation and apoptosis of hair follicle stem cells (HFSCs) in sheep. This is achieved by miR-27a targeting and downregulating the PIK3R3 gene, which subsequently reduces the activity of the AKT/MTOR pathway, leading to decreased HFSC proliferation and increased apoptosis. Conversely, inhibiting miR-27a led to increased PIK3R3, AKT, and MTOR expression, enhancing HFSC proliferation and reducing apoptosis. These findings suggest that miR-27a could be a crucial regulator of sheep HFSC proliferation and apoptosis, potentially providing insights for improving wool quality and developing new treatments for hair loss conditions.
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