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    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/79548


    Title: Alpinia oxyphylla Miquel fruit extract activates MAPK-mediated signaling of PAs and MMP2/9 to induce Schwann cell migration and nerve regeneration
    Authors: Yung-Ming Chang;Chi-Xin Ye;Tsung-Jung Ho;Te-Neng Tsai;Ping-Ling Chiu;Chin-Chuan Tsai;Yueh-Min Lin;Chia-Hua Kuo;Fuu-Jen Tsai;Chang-Hai Tsai;Chih-Yang Huang
    Contributors: 生物科技學系
    Date: 2014
    Issue Date: 2014-06-04 10:15:05 (UTC+8)
    Abstract: OBJECTIVES:
    This study investigates the molecular mechanisms by which Alpiniae oxyphyllae fructus (AOF) promotes neuron regeneration.
    METHODS:
    A piece of silicone rubber was guided across a 15 mm gap in the sciatic nerve of a rat. This nerve gap was then filled with different concentrations of AOF extract (0-200 mg/ml). We investigated the role of MAPK (ERK1/2, JNK and p38) pathways for AOF-induced matrix-degrading proteolytic enzyme (PAs and MMP2/9) production in RSC96 Schwann cells.
    RESULTS:
    The results showed that AOF increased the expressions of uPA, tPA, MMP-9, and MAPKs in vivo. In vitro, our results show that treatment with AOF extract induces ERK1/2, JNK, and p38 phosphorylation to activate the downstream PAs and MMPs signaling expression. AOF-stimulated ERK1/2, JNK, and p38 phosphorylation attenuated by individual pretreatment with siRNAs or inhibitors (U0126, SP600125 and SB203580), resulting in migration and uPA-related signal pathway inhibition.
    CONCLUSIONS:
    Taken together our data suggests the MAPKs (ERK1/2, JNK and p38), PAs (uPA, tPA), MMP (MMP2, MMP9) regenerative and migration signaling pathway of Schwann cells regulated by AOF extract might play a major role in Schwann cell migration and damaged peripheral nerve regeneration.
    Relation: INTERNATIONAL JOURNAL OF ARTIFICIAL ORGANS,37(5):402-413.
    Appears in Collections:[生物科技學系] 期刊論文

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