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http://purl.uniprot.org/citations/31539134http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/31539134http://www.w3.org/2000/01/rdf-schema#comment"

Objective

Studies showed that microRNAs (miRs) play an important role in the development of breast cancer. It has been shown that there were significant differences between the expression levels of serum miR-214-3p in breast cancer patients and healthy controls. Since survivin is involved in cell cycle and apoptosis, this study aims to investigate the effect of miR-214-3p on the proliferation and apoptosis of breast cancer cells.

Materials and methods

Dual-Luciferase reporter system was used to validate the cell cycle-related target gene survivin. miRanda and TargetScan were used to predict miR-214-3p target genes. Lipofectamine 2000 was used to transfect the miR-214-3p mimics, miR-NC into the MCF-7 cells. The quantitative Real Time-PCR (qRT-PCR) was used to detect the expression levels of miR-214-3p and survivin. The 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide (MTT) assay was used to examine the cell proliferation of breast cancer cells. The flow cytometry assay was used to evaluate the apoptosis of breast cancer cells.

Results

Dual-Luciferase reporter assay showed that cells co-transfected with wild-type vector and miR-214-3p mimics had significant lower ratios of hRluc/Luc fluorescence compared to that of the control group (p<0.05). The expression level of miR-214-3p was increased along with the increase of time after transfection, whereas the expression level of survivin mRNA was decreased along with the increase of time post transfection. This result suggests that miR-214-3p regulates the mRNA expression of survivin. Transfection of miR-214-3p inhibitor increased the proliferation of MCF-7 cells and transfection of miR-214-3p mimics decreased the proliferation of MCF-7 cells compared to control group (p<0.05).

Conclusions

Survivin gene is a downstream target of miR-214-3p in breast cancer cells. The expression of miR-214-3p and survivin is correlated with the proliferation and apoptosis of breast cancer cells."xsd:string
http://purl.uniprot.org/citations/31539134http://purl.org/dc/terms/identifier"doi:10.26355/eurrev_201909_18856"xsd:string
http://purl.uniprot.org/citations/31539134http://purl.uniprot.org/core/author"Wang H."xsd:string
http://purl.uniprot.org/citations/31539134http://purl.uniprot.org/core/author"Han L.C."xsd:string
http://purl.uniprot.org/citations/31539134http://purl.uniprot.org/core/author"Yan J.Y."xsd:string
http://purl.uniprot.org/citations/31539134http://purl.uniprot.org/core/author"Cai H.F."xsd:string
http://purl.uniprot.org/citations/31539134http://purl.uniprot.org/core/author"Niu F.L."xsd:string
http://purl.uniprot.org/citations/31539134http://purl.uniprot.org/core/date"2019"xsd:gYear
http://purl.uniprot.org/citations/31539134http://purl.uniprot.org/core/name"Eur Rev Med Pharmacol Sci"xsd:string
http://purl.uniprot.org/citations/31539134http://purl.uniprot.org/core/pages"7469-7474"xsd:string
http://purl.uniprot.org/citations/31539134http://purl.uniprot.org/core/title"Effect miR-214-3p on proliferation and apoptosis of breast cancer cells by targeting survivin protein."xsd:string
http://purl.uniprot.org/citations/31539134http://purl.uniprot.org/core/volume"23"xsd:string
http://purl.uniprot.org/citations/31539134http://www.w3.org/2004/02/skos/core#exactMatchhttp://purl.uniprot.org/pubmed/31539134
http://purl.uniprot.org/citations/31539134http://xmlns.com/foaf/0.1/primaryTopicOfhttps://pubmed.ncbi.nlm.nih.gov/31539134
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