Study on the mechanism of miRNA-143-3p-mediated proliferation, migration and invasion of human keloid fibroblasts through regulating ITGB5 expression / 中华微生物学和免疫学杂志
Chinese Journal of Microbiology and Immunology
;
(12): 844-851, 2020.
Article
in Chinese
| WPRIM
| ID: wpr-871365
ABSTRACT
Objective:
To investigate the effects of miRNA-143-3p on the proliferation, migration and invasion of keloid fibroblasts (KFB) and the possible mechanism.Methods:
KFB and normal skin fibroblasts (NFB) were isolated and cultured. The expression of miRNA-143-3p and integrin β5 (ITGB5) at mRNA level in KFB and NFB were detected by RT-qPCR. Western blot was performed to measure the expression of ITGB5 at protein level. After overexpressing miRNA-143-3p or suppressing ITGB5 expression in KFB cells, MTT assay, Transwell assay, RT-qPCR and Western blot were used to detect the effects on the proliferation, migration and invasion of KFB and the expression of related proteins. Dual-luciferase reporter gene assay was used to validate the targeting relationship between miRNA-143-3p and ITGB5.Results:
Compared with NFB, KFB showed down-regulated miRNA-143-3p expression and up-regulated expression of ITGB5 at both mRNA and protein levels. The proliferation, migration and invasion of KFB were inhibited after overexpressing miRNA-143-3p or suppressing ITGB5 expression. Moreover, miRNA-143-3p could negatively regulate ITGB5 expression and overexpression of ITGB5 reversed the effects of miRNA-143-3p overexpression on KFB proliferation, migration and invasion.Conclusions:
This study suggested that miRNA-143-3p could inhibit the proliferation, migration and invasion of KFB through down-regulating ITGB5 expression.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Journal of Microbiology and Immunology
Year:
2020
Type:
Article
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