Effects of Apoptin-Induced Endoplasmic Reticulum Stress on Lipid Metabolism, Migration, and Invasion of HepG-2 Cells

被引：11

作者：

Zhu, Yilong ^{[1
]}

Li, Yiquan ^{[1
]}

Bai, Bing ^{[1
]}

Shang, Chao ^{[2
]}

Fang, Jinbo ^{[2
]}

Cong, Jianan ^{[2
]}

Li, Wenjie ^{[2
]}

Li, Shanzhi ^{[1
]}

Song, Gaojie ^{[2
]}

Liu, Zirui ^{[2
]}

Zhao, Jin ^{[2
]}

Li, Xiao ^{[1
,2
]}

Zhu, Guangze ^{[1
]}

Jin, Ningyi ^{[1
,2
,3
]}

机构：

[1] Changchun Univ Chinese Med, Acad Workstn Jilin Prov, Changchun, Peoples R China

[2] Acad Mil Med Sci, Inst Mil Vet Med, Changchun, Peoples R China

[3] Yangzhou Univ, Jiangsu Coinnovat Ctr Prevent & Control Important, Yangzhou, Jiangsu, Peoples R China

来源：

FRONTIERS IN ONCOLOGY | 2021年 / 11卷

关键词：

Apoptin; endoplasmic reticulum stress; lipid metabolism; migration; invasion;

D O I：

10.3389/fonc.2021.614082

中图分类号：

R73 [肿瘤学];

学科分类号：

100214 ;

摘要：

In this study, we investigated the effects of Apoptin-induced endoplasmic reticulum (ER) stress on lipid metabolism, migration and invasion of HepG-2 cells, and preliminarily explored the relationship between endoplasmic reticulum stress, lipid metabolism, migration, and invasion. The effects of Apoptin on ER function and structure in HepG-2 cells were determined by flow cytometry, fluorescence staining and western blotting by assessing the expression levels of ER stress related proteins. The effects of Apoptin on HepG-2 cells' lipid metabolism were determined by western blot analysis of the expression levels of triglyceride, cholesterol, and lipid metabolism related enzymes. The effects of Apoptin on HepG-2 cells' migration and invasion were studied using migration and invasion assays and by Western-blot analysis of the expression of proteins involved in migration and invasion. The in vivo effects of endoplasmic reticulum stress on lipid metabolism, migration and invasion of HepG-2 cells were also investigated by immunohistochemistry analysis of tumor tissues from HepG2 cells xenografted nude mice models. Both in vitro and in vivo experiments showed that Apoptin can cause a strong and lasting ER stress response, damage ER functional structure, significantly change the expression levels of lipid metabolism related enzymes and reduce the migration and invasion abilities of HepG-2 cells. Apoptin can also affect HepG-2 cells' lipid metabolism through endoplasmic reticulum stress and the abnormal expression of enzymes closely related to tumor migration and invasion. These results also showed that lipid metabolism may be one of the main inducements that reduce HepG-2 cells' migration and invasion abilities.

引用

页数：13

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