Hepatology:乙醛脱氢酶2通过调节AMPK通路抑制肝细胞癌进展

2017-04-01 MedSci MedSci原创

背景:对于肝细胞癌患者而言,迫切需要可预测预后且可作为治疗靶点的潜在生物标记物。方法:为满足这一需求,我们通过筛查来识别在转录组学和蛋白组学水平同肝细胞癌发生及进展相关的功能基因。结果:乙醛脱氢酶-2(ALDH2)被作为兴趣基因进行进一步研究。同正常组织相比,肿瘤组织的ALDH2的mRNA和蛋白水平显着降低,在迁徙能力更强的组织中其水平更低。临床相关性研究提示ALDH2同存活率及多发迁徙相关的临床

背景:对于肝细胞癌患者而言,迫切需要可预测预后且可作为治疗靶点的潜在生物标记物。

方法:为满足这一需求,我们通过筛查来识别在转录组学和蛋白组学水平同肝细胞癌发生及进展相关的功能基因。

结果:乙醛脱氢酶-2(ALDH2)被作为兴趣基因进行进一步研究。同正常组织相比,肿瘤组织的ALDH2的mRNA和蛋白水平显着降低,在迁徙能力更强的组织中其水平更低。临床相关性研究提示ALDH2同存活率及多发迁徙相关的临床病理学特征相关,包括肿瘤转移和门脉癌栓。通过ALDH2过表达或敲除的方法,在体内实验和体外实验研究发现该基因抑制肿瘤细胞迁徙和侵袭。我们同样也发现ALDH2通过调节乙醛水平改变氧化还原状态,进一步激活AMP激活的蛋白激酶(AMPK)信号通路。

结论:ALDH2水平降低可能预示肝细胞癌患者预后不良。体外及小鼠研究中,提高ALDH2在肝细胞癌细胞中表达主要通过调节ALDH2-乙醛和氨-氧化还原-AMPK轴抑制其侵袭性。因而,识别肝细胞癌中ALDH2的表达水平可作为肝细胞癌患者分类的方法,并可针对转移性肝细胞癌研究可能的治疗策略。

原始出处:

Guojun Hou,Lei Chen,Gang Liu,et al. Aldehyde dehydrogenase-2 (ALDH2) opposes hepatocellular carcinoma progression by regulating AMP-activated protein kinase signaling in mice. Hepatology,31 March 2017,DOI: 10.1002/hep.29006.

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    2018-03-01 xjy02
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    2017-07-27 qiaoyingli

    榜样的力量,学习的榜样。

    0

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    2017-04-04 卡圣

    谢谢分享,学习了

    0

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    2017-04-03 gwc384