Hsp70 Promotes SUMO of HIF-1 alpha and Promotes Lung Cancer Invasion and Metastasis

Ling, Xiean1; Wan, Jun1; Peng, Bin1; Chen, Jing2

2021-11-26

10.1155/2021/7873085

Journal of Oncology   影响因子和分区

1687-8450

1687-8469

Objective. This study aims to investigate the effect of heat shock protein-70 (Hsp70) on epithelial-mesenchymal transition (EMT) of lung cancer cells under heat stimulation and to explore its possible molecular mechanism. Methods. qRT-PCR and immunohistochemistry assay were used to detect the expression of Hsp70 in lung cancer tissues and adjacent tissues. EdU assay was used to detect the cell activity. The effect of Hsp70 on the migration and invasion of A549 and NCI-H446 cells was detected by the wound-healing assay and Transwell assay. A tumor transplantation animal model was established to detect the effect of overexpression of Hsp70 on proliferation and metastasis of lung cancer cells. Western blot assay was used to detect the effect of thermal stimulation and overexpression of Hsp70 on SUMO modification of HIF-1 alpha. Results. The wound-healing rate of A549 and NCI-H446 cells under Hsp70 stimulation was significantly higher than blank control group. At the same time, the number of cells passing through the membrane increased significantly. Hypodermic tumor transplantation in nude mice proved that knockout Hsp70 can inhibit proliferation and metastasis of lung cancer cells. Thermal stimulation upregulated the expression of Hsp70 and promoted SUMO modification of HIF-1 alpha, ultimately promoting the proliferation and metastasis of lung cancer. Inhibition of Hsp70 reverses the effect of thermal stimulation on lung cancer by reducing the SUMO modification of HIF-1 alpha. Conclusion. Thermal stimulation can promote EMT in A549 and NCI-H446 cells and promote cell migration and invasion in vitro and in vivo by upregulation of Hsp70. This process is associated with the promotion of SUMO modification of HIF-1 alpha.

SCI

英语

第一 ; 通讯

Natural Science Foundation of Guangdong Province[2018A0303130247] ; Shenzhen Key Medical Discipline Construction Fund[SZXK018]

Oncology

Oncology

WOS:000802307200002

HINDAWI LTD

Web of Science

1.Jinan Univ, Dept Thorac Surg, Shenzhen Peoples Hosp, Affiliated Hosp 1,Southern Univ Sci & Technol,Cli, Guangzhou 518020, Guangdong, Peoples R China
2.Jinan Univ, Emergency Dept, Shenzhen Peoples Hosp, Affiliated Hosp 1,Southern Univ Sci & Technol,Cli, Guangzhou 518020, Peoples R China

Ling, Xiean,Wan, Jun,Peng, Bin,et al. Hsp70 Promotes SUMO of HIF-1 alpha and Promotes Lung Cancer Invasion and Metastasis[J]. Journal of Oncology,2021,2021.

Ling, Xiean,Wan, Jun,Peng, Bin,&Chen, Jing.(2021).Hsp70 Promotes SUMO of HIF-1 alpha and Promotes Lung Cancer Invasion and Metastasis.Journal of Oncology,2021.

Ling, Xiean,et al."Hsp70 Promotes SUMO of HIF-1 alpha and Promotes Lung Cancer Invasion and Metastasis".Journal of Oncology 2021(2021).