國家衛生研究院 NHRI:Item 3990099045/3982
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    題名: Matriptase/epithin participates in mammary epithelial cell growth and morphogenesis through HGF activation
    作者: Lee, SL;Huang, PY;Roller, P;Cho, EG;Park, D;Dickson, RB
    貢獻者: Institute of Cellular and Systems Medicine
    摘要: The epithelial-derived, type II transmembrane serine protease matriptase, the mouse homologue of which is epithin, has been shown to be involved in epidermal differentiation, hair formation, and thymus function. We show in this study that epithin/matriptase (Epi/MTP) plays a significant role in mammary epithelial cell growth and morphogenesis. Epi/MTP is expressed at low level in the mouse mammary epithelium of young animals and it accumulates at the terminal end-bud of the growing ducts. The level of Epi/MTP is elevated in the mammary glands at stages when epithelial proliferation and modeling occur. It is primarily present in the luminal epithelial cells of mouse mammary ducts and lobules. Using an ex vivo three-dimensional culture system for mammary epithelial functional assays, we show that mammary epithelial growth and morphogenesis in the presence of the latent form hepatocyte growth factor (pro-HGF) are blocked either by an inhibitor of the Epi/MTP protease activity or by siRNA knockdown of the Epi/MTP expression. These studies demonstrate that Epi/MTP participates in mammary epithelial growth and modeling through activation of pro-HGF. Our findings reveal an important pathway in normal mammary epithelial morphogenesis which may participate in breast cancer progression.
    日期: 2010-01
    關聯: Mechanisms of Development. 2010 Jan;127(1-2):82-95.
    Link to: http://dx.doi.org/10.1016/j.mod.2009.10.004
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000274722700008
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=73649147998
    顯示於類別:[李小玲] 期刊論文

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