Journal
ASIAN PACIFIC JOURNAL OF TROPICAL MEDICINE
Volume 9, Issue 5, Pages 456-459Publisher
WOLTERS KLUWER MEDKNOW PUBLICATIONS
DOI: 10.1016/j.apjtm.2016.03.025
Keywords
Breast cancer; Micro RNA; Proliferation; Invasion
Funding
- National Natural Science Foundation of China [81560269]
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Objective: To study the regulatory effects of miR-2 I on breast cancer cell line proliferation and invasion as well as the downstream target genes. Methods: Breast cancer cell lines MCF-7 were cultured and transfected with miR-21 mimics and the corresponding negative control mimics (NC mimics), and then MTS kits were used to detect cell viability. Transwell experiment was used to detect cell invasion ability, and fluorescence quantitative PCR was used to detect the expression of proliferation and invasion-related genes in cells. Results: 24h after transfection of miR-21 mimics and NC mimics, cell OD value and the number of invasive cells of miR-21 group were significantly higher than those of NC group, and mRNA contents of PDCD-4, FasL, PTEN, RhoB, Maspin, TIMP3 and RECK in cells were significantly lower than those of NC group. Conclusion: miR-2 I can promote the proliferation and invasion of breast cancer cell lines, and its downstream target genes include PDCD-4, FasL, PTEN, RhoB, Maspin, TIMP3 and RECK.
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