Journal
TROPICAL JOURNAL OF PHARMACEUTICAL RESEARCH
Volume 19, Issue 9, Pages 1843-1849Publisher
PHARMACOTHERAPY GROUP
DOI: 10.4314/tjpr.v19i9.7
Keywords
MiR-379; Y-box binding protein 1; Multiple myeloma; Proliferation; Apoptosis
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Funding
- International Collaboration Fund from National Science and Technology Committee of China [2011DFA32820]
- National Natural Science Fund Project [81460037]
- Fund of Jiangxi Provincial Department of Education [GJJ160240]
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Purpose: To determine the effect of miR-379 in multiple myeloma. Methods: Quantitative reverse transcription-polymerase chain reaction (qRT-PCR) was used to evaluate the expression of miR-379 in multiple myeloma cells. The effect of miR-379 on multiple myeloma progression was investigated by cell counting, bromodeoxyuridine staining, flow cytometry and Western blot analysis. A potential target for miR-379 was determined using a luciferase reporter assay. Results: MiR-379 expression was reduced in multiple myeloma cells, while over-expression of miR-379 increased both cell viability and proliferation of these cells (p < 0.05). Moreover, miR-379 blocked cell cycle multiple myeloma cells and promoted apoptosis by decreasing Bcl-2 expression, and increasing the expression of cleaved caspase-3 and Bax. MiR-379 bound to Y-box binding protein 1 (YBX1) and reduced YBX1 mRNA and protein expression in multiple myeloma cells (p < 0.05). Conclusion: A YBX1-mediated tumor-suppressive role for miR-379 in multiple myeloma cells has been identified, suggesting a potential strategy for the treatment of multiple myeloma.y
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