Oncotarget:Beclin 1和LC3可作为预测转移性结直肠癌的生物标志物

2017-09-25 MedSci MedSci原创

自噬是一种高度保守的代谢过程,表现为细胞对不正常的或不需要的细胞成分的“自食”。自噬在癌症转移中扮演著着重要的角色,而转移性疾病是结直肠癌导致相关死亡的主要原因。

自噬是一种高度保守的代谢过程,表现为细胞对不正常的或不需要的细胞成分的“自食”。自噬在癌症转移中扮演著着重要的角色,而转移性疾病是结直肠癌导致相关死亡的主要原因。研究者在结直肠癌手术标本中研究了免疫组化表达自噬相关蛋白Beclin 1和微管相关蛋白1A/1B-轻链3(LC3)。首先在一个包含205例患者的训练队列中得到初步结果,然后在内部验证队列(160例)和独立的队列(161例)中验证结果。相比非转移性CRC,转移性CRC标本中Beclin 1和LC3的表达较低。此外,我们开发了一种基于自噬的转移预测分类器。在训练队列中,这种分类器通过检测包括Beclin 1、LC3和CEA水平在内的生物指标,预测结直肠癌转移的敏感性达到了82.9%,特异性达到89.8%。在独立队列中,预测结直肠癌转移的敏感性为77.9%,特异性为90.3%。这些结果表明,LC3和Beclin 1低表达与更具侵略性的癌细胞表型有关。并且,本研究中的自噬分类器是预测CRC转移的可靠工具。原始出处:Hong Zhao,Maopeng Yang,Bin Zhao,et al.Beclin 1 and LC3 as pre

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    2017-12-30 仁医06
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