Effect of miR-302d-3p on Proliferation,Apoptosis and Migration of Human Umbilical Vein Endothelial Cells under High Glucose Environ-ment and Its Mechanism
10.11969/j.issn.1673-548X.2025.07.015
- VernacularTitle:miR-302d-3p对高糖环境下人脐静脉内皮细胞增殖、凋亡和迁移的影响及其机制
- Author:
Tao FENG
1
;
Jing LI
;
Hongyuan ZHANG
Author Information
1. 830000 新疆医科大学第四附属医院血管外科
- Publication Type:Journal Article
- Keywords:
Diabetic foot ulcer;
miRNA;
Proliferation;
Transfer;
Mechanism
- From:
Journal of Medical Research
2025;54(7):77-84
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the effect of miR-302d-3p on the proliferation,apoptosis and migration of human umbilical vein endothelial cell(HUVEC)in high glucose environment and its possible mechanism.Methods HUVEC were randomly divided into control group,high glucose group,miR-302d-3p mimics NC group,miR-302d-3p mimics group,miR-302d-3p inhibitor NC group and miR-302d-3p inhibitor NC group.Cell counting kit-8(CCK-8)was used to detect cell proliferation,flow cytometry was used to detect the apoptosis rate,cell scratch and Transwell were used to detect cell migration,real-time fluorescent quantitative poly-merase chain reaction(PCR)was used to detect the mRNA expression of miR-302d-3p and epidermal growth factor receptor(EGFR),Western blot was used to detect the phosphorylation level of ERK,and dual luciferase reporter gene assay was used to detect the binding of miR-302d-3p to EGFR.Results Compared with the control group,the proliferation activity,wound healing ability and the number of invasive cells in the high glucose group were significantly decreased,the apoptosis rate was significantly increased,the expression level of miR-302d-3p was significantly increased,and the expression levels of EGFR and p-ERK were significantly decreased in the high glucose group.Compared with high glucose group,miR-302d-3p mimics group had lower proliferation activity,wound healing ability,invasive cell number,p-ERK expression level,higher apoptosis rate,higher miR-302d-3p expression level,lower EGFR expression level,while miR-302d-3p inhibitor group had higher proliferation activity,wound healing ability,invasive cell number,p-ERK ex-pression level,lower apoptosis rate,lower miR-302d-3p expression level,and higher EGFR expression level.The fluorescence intensity ratio of miR-302d-3p mimics+egfr-wt group was significantly lower than that of mimicsnc+egfr-wt group,P＜0.05.Conclusion Up regulation of miR-302d-3p expression can inhibit the proliferation,migration and invasion of HUVEC under high glucose environ-ment and induce apoptosis,while the effect of inhibiting miR-302d-3p expression is opposite.The mechanism may be related to up reg-ulation of miR-302d-3p expression,which can target to reduce the expression of EGFR and down regulate the activity of EGFR/ERK pathway.
