肿瘤防治研究2024，Vol.51Issue(8)：655-666,12.DOI:10.3971/j.issn.1000-8578.2024.24.0167
miR-1-3p通过调控STC2抑制人食管鳞状细胞癌细胞的恶性生物学行为
miR-1-3p Inhibits Malignant Biological Behavior of Human Esophageal Squamous Cell Carcinoma Cells by Regulating STC2
摘要
Abstract
Objective To explore the effect of miR-1-3p on the malignant biological behavior of human esophageal squamous cell carcinoma cells and the potential mechanisms.Methods The Gene Expression Omnibus(GEO)database was analyzed to screen differentially expressed miRNAs in esophageal squamous cell carcinoma(ESCC).qRT-PCR was used to detect the expression of miR-1-3p in human ESCC cell lines(KYSE30,KYSE150,KYSE410,KYSE510,and Eca109)and normal esophageal epithelial cell line HET-1A.CCK-8,wound healing,Transwell assays,and flow cytometry were applied to detect the effect of miR-1-3p on the proliferation,migration,invasion,and apoptosis of ESCC cells.Bioinformatics tool was used to predict the target genes of miR-1-3p.A Kaplan-Meier survival curve was drawn to analyze the correlation between STC2 expression and overall survival of patients in the ESCC cohort of the TCGA database.Fluorescence in situ hybridization was performed to verify the subcellular location of miR-1-3p in ESCC cells,and dual-luciferase reporter gene assay was performed to validate the regulation of miR-1-3p on stanniocalcin 2(STC2).RNA immunoprecipitation assays were used to detect the binding of miR-1-3p and STC2.Western blot assay was performed to determine the effect of miR-1-3p on the expression of STC2 and endoplasmic reticulum stress pathway-related proteins,including p-PERK,p-eIF2α,and ATF4.CCK-8,wound healing,Transwell assays,and flow cytometry were applied to detect the effect of STC2 overexpression and knockdown on the proliferation,migration,invasion,and apoptosis of ESCC cells.Results The expression of miR-1-3p was lower in ESCC cell lines than in HET-1A cells(all P<0.05).The transfection of miR-1-3p mimic decreased the proliferation,invasion,and migration of ESCC cells(all P<0.05)and promoted the apoptosis of ESCC cells(all P<0.001).Bioinformatics tool showed that STC2 was a target gene of miR-1-3p.The expression of STC2 in ESCC tissues was higher than that in normal esophageal epithelial tissues in the ESCC cohort of TCGA database and was negatively correlated with prognosis(all P<0.05).miR-1-3p was located in the cytoplasm and can directly bind to STC2 mRNA.The transfection of miR-1-3p mimic downregulated the expression of STC2,p-PERK,p-eIF2α,and ATF4(all P<0.05).The overexpression of STC2 promoted the proliferation,invasion,and migration(all P<0.05)and inhibited the apoptosis of ESCC cells(all P<0.05).Knockdown of STC2 inhibited the proliferation,invasion,and migration(all P<0.05)and promoted the apoptosis of ESCC cells(all P<0.05).Conclusion miR-1-3p inhibits the malignant biological behavior and promotes the apoptosis of esophageal squamous cell carcinoma cells by regulating STC2 possibly by suppressing the endoplasmic reticulum stress.关键词
食管鳞状细胞癌/miR-1-3p/斯钙素2/内质网应激Key words
Esophageal squamous cell carcinoma/miR-1-3p/Stanniocalcin 2/Endoplasmic reticulum stress分类
医药卫生引用本文复制引用
于凡,王佳琪,高常林,司嘉鑫,吕微,贾云泷,刘丽华..miR-1-3p通过调控STC2抑制人食管鳞状细胞癌细胞的恶性生物学行为[J].肿瘤防治研究,2024,51(8):655-666,12.基金项目
国家自然科学基金青年基金(82203079) （82203079）
河北省自然科学基金青年科学基金(H2020206341) National Natural Science Foundation of China(No.82203079) （H2020206341）
Hebei Natural Science Fund for Young Scholars(No.H2020206341) （No.H2020206341）
