Influences of IGF-1 and EGF on Primary Hair Follicles of Liaoning Cashmere Goat In Vitro

    January 2010 in “ Shenyang Nongye Daxue xuebao ”
    Yao Y, Liu Haiying, Ying Yuan, Yuyan Cong
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    Studysummary This study found that combining IGF-1 and EGF in specific concentrations significantly stimulated hair follicle growth in vitro for primary follicles from Liaoning cashmere goats. Our plain-language summary of this paper — not a Tressless recommendation.
    The study investigated the effects of IGF-1 and EGF on the growth and morphology of primary hair follicles from Liaoning cashmere goats in vitro. It was found that IGF-1 promoted the proliferation of dermal papilla and matrix cells, while EGF regulated the differentiation of outer root sheath cells. The combination of IGF-1 and EGF stimulated the formation of larger hair bulbs. The optimal concentrations for promoting follicle growth were 10 ng/mL for IGF-1 and 20 ng/mL for EGF. The combined supplementation of IGF-1 and EGF significantly enhanced hair follicle growth compared to using either factor alone.
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