Sci Rep:肾细胞癌中细胞自噬缺陷和相关的遗传变异研究

2018-07-10 AlexYang MedSci原创

细胞自噬与肿瘤之间的关系已经研究的很详细,但是肿瘤细胞形态的变化相关的细胞自噬缺陷却报道很少,尤其是在肾细胞癌中(RCC)。最近,有研究人员搜集了10个肾肿瘤样本,这些样本均具有特有的嗜酸性胞浆内包涵体(ECIs),并且研究人员发现这些ECIs主要是由sequestosome 1/P62组成,并且与BRCA1基因(NBR1)、PEX14和CATALASE1(CAT1)近邻。更进一步的是,透射电镜分

细胞自噬与肿瘤之间的关系已经研究的很详细,但是肿瘤细胞形态的变化相关的细胞自噬缺陷却报道很少,尤其是在肾细胞癌中(RCC)。

最近,有研究人员搜集了10个肾肿瘤样本,这些样本均具有特有的嗜酸性胞浆内包涵体(ECIs),并且研究人员发现这些ECIs主要是由sequestosome 1/P62组成,并且与BRCA1基因(NBR1)、PEX14和CATALASE1(CAT1)近邻。更进一步的是,透射电镜分析阐释了ECIs是蛋白类物质和过氧化物酶体的集合体。这些结果确认了RCCs中ECIs是细胞自噬缺陷的产物。ECIs的出现与RCCs高福尔曼等级组成相关。全外显子组测序(WES)和Sanger测序表明,具有ECIs的肿瘤具有体细胞突变或者细胞自噬相关(ATG)基因的高频率突变,比如ATG7, ATG5和ATG10。

最后,研究人员指出,这些结果表明了ATG基因中核苷酸的变化与细胞自噬缺陷、ECI的形成甚至RCCs肿瘤等级是相关的。

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    2018-07-13 一个字-牛

    学习了谢谢分享

    0

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    2018-07-11 kafei

    学习了谢谢

    0

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    2018-07-11 1209e435m98(暂无昵称)

    学习了.谢谢分享

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    2018-07-10 戒馋,懒,贪

    谢谢分享学习了

    0

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