莫诺苷对局灶性脑缺血再灌注大鼠Wnt7a和APC表达的影响
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国家自然科学基金(30973893,81173575,81373994);“重大新药创制”科技重大专项(2012ZX09102-201-016);北京市自然科学基金(7102077);北京市教委科研基地-科技创新平台(112219);北京市卫生系统高层次卫生技术人才(2011-3-097);第52批中国博士后资金(106455);北京市博士后资助(106455)。


Effects of morroniside on the expression of Wnt7a and APC in rat cortex of focal cerebral ischemia/reperfusion
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    摘要:

    目的 观察莫诺苷对局灶性脑缺血再灌注大鼠Wnt7a和APC表达的影响。方法 用线栓法制备大鼠局灶性脑缺血再灌注模型(MCAO)。将50只Sprague-Dawley 大鼠随机分为假手术组,模型组,莫诺苷小、中、大剂量组(30 mg/kg、90mg/kg、270 mg/kg)。利用蛋白免疫印迹法检测Wnt7a和APC表达变化。结果 造模7 d,模型组大鼠皮层Wnt7a的表达比假手术组显著升高,APC表达显著下降;与模型组相比,莫诺苷大剂量组Wnt7a表达明显升高;莫诺苷小、中、大剂量组APC的表达显著降低。结论 莫诺苷可以促进缺血性脑损伤后Wnt7a表达,抑制APC表达,从而激活Wnt信号通路。

    Abstract:

    Objective To investigate the effects of morroniside on the expression of Wnt7a and APC in rat cortex of focal cerebral ischemia/reperfusion. Methods After middle cerebral artery occlusion (MCAO) model was performed SD rats were divided into groups of sham, model, and morroniside (30 mg/kg, 90 mg/kg,270 mg/kg). The expression of Wnt7a and APC were evaluated by Western blot. Results Compared with the sham group, the expression of Wnt7a in rats of MCAO model was increased, and the expression of APC was decreased. Compared with model group, morroniside at the concentrations of 30 mg/kg, 90 mg/kg, 270 mg/kg decreased APC expression respectively, while 270 mg/kg morroniside-treatment obviously increased the expression of Wnt7a. Conclusion Morroniside could increase the expression of Wnt7a, and inhibit the expression of APC after ischemic injury, therefore activating the Wnt signaling pathway.

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薛金龙,孙芳玲,刘婷婷,侯虹丽,魏仁平,向本旭,艾厚喜,王玉兰,张丽,石淑先,王文.莫诺苷对局灶性脑缺血再灌注大鼠Wnt7a和APC表达的影响[J].中国比较医学杂志,2014,24(9):9~13.

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  • 最后修改日期:2014-08-26
  • 在线发布日期: 2014-10-10
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