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Effect of Mmu-circRNA_016901 on the Radiosensitivity of Bone Marrow Mesenchymal Stem Cells / 中国实验血液学杂志
Journal of Experimental Hematology ; (6): 1032-1037, 2020.
Article in Chinese | WPRIM | ID: wpr-827166
ABSTRACT
OBJECTIVE@#To explore the effect of mmu-circRNA_016901 on the regulation of radiation injury of bone marrow stem cells and its mechanism.@*METHODS@#Bone marrow stem cells were exposed to different dose of X-ray, then the expression level of mmu-circRNA_016901 in bone marrow cells treated with different doses of X-ray was detected. The luciferase reporter gene assay was used to confirm that miRNA1249-5p is the target of mmu-circRNA_016901, and RNA Binding Protein Immunoprecipitation was used to confirm that TGF-β3 is the targeted on miRNA1249-5p,the expression of TGF-β3 and cell proliferation were detected after the expression of mmu-circRNA_01690 was regulated.@*RESULTS@#When the irradiation dose<6 Gy, there were significant difference in the expression of mmn-circRNA-016901 after the bone marrow mesenchymal stem cells were treated by different doses of irradiation, which showed a statistically significant (P<0.05). The luciferase reporter gene detection and co-immunoprecipitation experiments confirmed that Mmu-circRNA_016901 could binds to miRNA1249-5p specifically, and overexpression of mmu-circRNA_016901 could regulate miRNA1249-5p negatively, which resulted in a significant increase in TGF-β3 expression and promoting of cell proliferation.@*CONCLUSION@#mmu-circRNA_016901 affects the expression of TGF-β3 through miRNA1249-5p, and thus participates in the regulation of the radiation damage mechanism of bone marrow mesenchymal stem cells.
Subject(s)
Full text: Available Index: WPRIM (Western Pacific) Main subject: Radiation Tolerance / Bone Marrow Cells / Mesenchymal Stem Cells / RNA, Circular / Genetics Language: Chinese Journal: Journal of Experimental Hematology Year: 2020 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Radiation Tolerance / Bone Marrow Cells / Mesenchymal Stem Cells / RNA, Circular / Genetics Language: Chinese Journal: Journal of Experimental Hematology Year: 2020 Type: Article