Epithelial transformation sequence 2 affecting the in vitro metastatic activity of esophageal squamous carcinoma cells by regulating the expression of p33 inhibitor growth-1&nbsp;

WANG Yang; WANG Yang Hong-Bo; LUO Dong-Bo; WU Zhen-Hua

doi:10.16098/j.issn.0529-1356.2024.02.011

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Acta Anatomica Sinica ›› 2024, Vol. 55 ›› Issue (2) : 203-209. DOI: 10.16098/j.issn.0529-1356.2024.02.011

Epithelial transformation sequence 2 affecting the in vitro metastatic activity of esophageal squamous carcinoma cells by regulating the expression of p33 inhibitor growth-1

WANG Yang¹ WU Zhen-hua^2* Lü Hong-bo¹ LUO Dong-bo¹

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Abstract

Objective To investigate the effects of epithelial transformation sequence 2 (ECT2) and p33ING1 on the metastatic activity of esophageal squamous cell carcinoma (ESCC) cells. Methods The expressions of ECT2 and p33ING1 in esophageal squamous cell carcinoma tissues and adjacent tissues were detected by immunohistochemistry and Western blotting. Human esophageal squamous carcinoma cell line KYSE140 cells were divided into 4 groups: blank group, negative control (pcDNA 3.1 NC) group, overexpression group (pcDNA 3.1 ECT2) and inhibited expression group (si ECT2). MTT assay and cell colony formation assay were used to study the proliferation and growth ability of cells, Transwell assay and scratch assay used to study the invasion and migration ability of cells, and flow cytometry used to detect apoptosis and cell cycle, Western blotting used to detect the effect of ECT2 on p33ING1 protein. Results ECT2 expression increased and p33ING1 expression decreased in esophageal squamous cell carcinoma tissues. Overexpression of ECT2 significantly increased the growth, colony formation, migration and invasion abilities of KYSE140 cells, and decreased the apoptosis rate and p33ING1 expression of KYSE140 cells. In addition, inhibition of ECT2 expression could reverse the above changes. Conclusion The high expression of ECT2 can promote the growth and metastasis of esophageal squamous cell carcinoma KYSE140 cells and inhibit their apoptosis. The mechanism may be related to the inhibition of p33ING1 expression by ECT2.

Key words

Epithelial cell transformation sequence 2 / p33 inhibitor of growth-1 / Esophageal squamous carcinoma / Metastasis / Western blotting

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WANG Yang WU Zhen-hua Lü Hong-bo LUO Dong-bo. Epithelial transformation sequence 2 affecting the in vitro metastatic activity of esophageal squamous carcinoma cells by regulating the expression of p33 inhibitor growth-1 [J]. Acta Anatomica Sinica. 2024, 55(2): 203-209 https://doi.org/10.16098/j.issn.0529-1356.2024.02.011

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