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乙醇通过HepG2细胞的ERK-FoxO3a轴增强蛋白P表达

Jian Chen¹, Yuichiro Mita¹, Noriko Noguchi¹

¹The Systems Life Sciences Laboratory, Department of Medical Life Systems, Faculty of Life and Medical Sciences, Doshisha University, 1-3 Tatara-Miyakodani, Kyotanabe 610-0394, Japan.

Journal of clinical biochemistry and nutrition

|September 30, 2024

概括

乙醇摄入量通过增加SePmRNA转录来提高蛋白P (SeP) 水平. 这通过DUSP5/6-ERK1-FoxO3a通路发生,独立于AMPK和JNK信号传递.

科学领域:

生物化学生物化学
分子生物学分子生物学
细胞生物学细胞生物学

背景情况:

饮酒是糖尿病的一个危险因素.
乙醇摄入量与增加的蛋白P (SeP) 水平有关.
乙醇诱导的SeP升高的确切机制尚不清楚.

研究的目的:

阐明乙醇增加蛋白P表达的分子机制.
调查特定信号通路在以乙醇为媒介的SeP调节中的作用.

主要方法:

用不同度和持续时间的乙醇治疗人类肝脏衍生的HepG2细胞.
对蛋白P蛋白和mRNA表达水平的分析.
对关键信号蛋白质的评估,包括AMPK,JNK,ERK1/2,FoxO3a,MEK,DUSP5和DUSP6.

主要成果:

乙醇以剂量和时间依赖的方式增加了SeP蛋白和mRNA.
乙醇没有改变AMPK或JNK蛋白水平.
乙醇通过DUSP5/6激活去化ERK1增加了核FOXO3a,但没有影响MEK化.

结论:

乙醇诱导的SeP水平的增加是由增强的SePmRNA转录介导的.
在这个过程中,DUSP5/6-ERK1-FoxO3a通路具有关键作用.
这一途径代表了一种新的机制,将乙醇消耗与改变的SeP表达联系起来.

关键词:

在DUSP6中,我们可以使用DUSP6.在ERK1上.据说FoxO3a是因为它.乙醇乙醇是一种单蛋白 P 是一种单蛋白 P.

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