Abstract:
:Although numerous miRNAs are reported to contribute to the carcinogenesis of malignant tumor, the specific role of miR-424 in endometrial carcinoma is seldom reported. To explore the effect of miR-424 on epithelial-mesenchymal transition and its underlying mechanism, we detected miR-424 expression in endometrial carcinoma tissue and cells. We found that miR-424 was significantly downregulated in endometrial carcinoma tissues and cells, especially in HEC-1B cells. To perform the functional analysis, we transfected HEC-1B with miR-424-mi, miR-424-inh, mi-control, and inh-control, respectively. We found that overexpression of miR-424 significantly decreases cell proliferation and migration, accompanied with the increased E-cadherin/Vimentin expression and the transition of mesenchymal to epithelial cell phenotype. We identified that insulin-like growth factor-1 receptor (IGF-1R) was a potential target of miR-424 by computational analysis followed by luciferase reporter assays. Of note, we found that the downregulation of miR-424 in HEC-1B cells enhanced endogenous IGF-1R expression. Further mechanistic analysis revealed that forced expression of IGF-1R in miR-424-mim transfected cells remedied the weakened migration resulting from overexpression of IGF-1R. Taken together, the results of the current study demonstrated that miR-424 was a tumor suppressor for endometrial carcinoma and a favorable factor against tumor progression through targeting IGF-1R, thus providing a target for the treatment of endometrial carcinoma.
journal_name
J Cell Biochemjournal_title
Journal of cellular biochemistryauthors
Shu S,Liu X,Xu M,Gao X,Fan J,Liu H,Li Rdoi
10.1002/jcb.27528subject
Has Abstractpub_date
2018-09-06 00:00:00eissn
0730-2312issn
1097-4644pub_type
杂志文章abstract::To elucidate the function of the odontogenic ameloblast-associated protein (ODAM) in ameloblasts, we identified more than 74 proteins that interact with ODAM using protoarray. Of the identified proteins, bone morphogenetic protein receptor type-IB (BMPR-IB) was physiologically relevant in differentiating ameloblasts. ...
journal_title:Journal of cellular biochemistry
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