Abstract | PURPOSE: METHODS: A normal prostate epithelial cell line P69 and two prostate cancer cell lines PC3 and DU145 were used in this study. The mRNA levels of miR-19a and CUL5 were measured using qRT-PCR assay. Transwell and Western blot assays were conducted to calculate cell metastasis and epithelial-mesenchymal transition (EMT) properties in PC3 cells. Luciferase reporter assay was applied to validate that miR-19a targeted to CUL5. RESULTS: The expression of miR-19a was high in prostate cancer and its overexpression predicted poor outcome of prostate cancer patients. miR-19a regulated the expression of CUL5 by directly targeting its mRNA 3'-UTR in PC3 cells. The expression of CUL5 was lower in prostate cancer tissues and cell lines than in non- tumor tissues and normal cells. Downregulation of CUL5 predicted worse outcome of prostate cancer patients. miR-19a promoted cell migration, invasion and EMT in prostate cancer by directly binding to CUL5 mRNA 3'-UTR. CUL5 partially reversed the roles of miR-19a on the metastasis in prostate cancer. CONCLUSION: miR-19a promoted migratory, invasive and EMT abilities by binding to CUL5 in prostate cancer. The newly identified miR-19a/CUL5 axis provides novel insight into the pathogenesis of prostate cancer.
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Authors | Yong Wang, Jinding Hu, Guanyun Qi, Shenghui Wang, Jianjun Gao |
Journal | Journal of B.U.ON. : official journal of the Balkan Union of Oncology
(J BUON)
2020 Jul-Aug
Vol. 25
Issue 4
Pg. 2028-2035
ISSN: 2241-6293 [Electronic] Cyprus |
PMID | 33099949
(Publication Type: Journal Article)
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Chemical References |
- CUL5 protein, human
- Cullin Proteins
- MIRN19 microRNA, human
- MicroRNAs
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Topics |
- Cell Proliferation
(physiology)
- Cullin Proteins
(genetics, metabolism)
- Epithelial-Mesenchymal Transition
- Humans
- Male
- MicroRNAs
(genetics, metabolism)
- Neoplasm Metastasis
- PC-3 Cells
- Prostatic Neoplasms
(genetics, metabolism, pathology)
- Transfection
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