转化生长因子受体Ⅱ与去神经性肌萎缩的相关性研究
Space Medicine & Medical Engineering(2012)
Abstract
目的研究去神经致肌萎缩和纤维类型转化的分子机制,探讨TβRII-SMAD信号通路在此过程中的相关性。方法取10只C57BL/6小鼠,右后肢坐骨神经离断,左后肢假手术对照。Real Time PCR(RT-PCR)检测术后14 d比目鱼肌和跖肌萎缩基因MAFbx,MuRF-1,及PGC-1α,MHCIIb,TβRII的表达变化。结果去坐骨神经后萎缩基因MAFbx,MuRF-1及MHCIIb在比目鱼肌和跖肌明显上调;PGC-1α,TβRII的表达在比目鱼肌和跖肌呈现差异性变化。结论 MAFbx,MuRF-1和PGC-1α在肌萎缩过程中发挥重要作用,TβRII可能参与了对肌萎缩的调节。
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Key words
molecular mechanisms,muscle atrophy,denervation,TβRII
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