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大鼠脊髓损伤修复相关69号蛋白与内质网应激关系的研究 被引量:2

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摘要 目的探究大鼠脊髓损伤修复相关69号蛋白(SCIRR69)在内质网应激中的表达变化,为研究其生物功能打下基础。方法采用免疫印迹、免疫荧光和激光共聚焦方法检测内质网应激诱导剂作用下SCIRR69的表达和分布变化,双荧光素酶实验验证SCIRR69分子与内质网应激的关键分子BIP基因启动子的相互作用。结果免疫印迹结果显示在内质网应激诱导剂Tg、Tm作用下,PC12细胞中SCIRR69全长分子的表达明显增高,但其剪切体形式仅在Tg作用下有所增加。在免疫荧光的结果中,在转染pEGFP-C1-SCIRR69后正常培养的细胞中,SCIRR69几乎全部分布于胞浆,当Tg存在时,SCIRR69向细胞核的转位增强。双荧光素酶报告基因检测结果显示SCIRR69对BIP基因上游的顺式作用元件没有明显的转录激活作用。结论SCIRR69很可能作为与内质网应激相关的转录因子发挥作用,但是其作用的顺式作用元件不在BIP基因启动子序列-457/-29范围内。
出处 《广东医学》 CAS CSCD 北大核心 2010年第3期303-306,共4页 Guangdong Medical Journal
基金 国家高技术研究发展计划资助项目(编号:2007AA02Z100)
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同被引文献43

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