Volume 44 Issue 8
Aug.  2023
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Shan YU, Lin XIAO, Dongping GONG, Loufeng LIANG, Anwei LIANG, Xiayi XU, Jie LIN, Huaxin LIANG. The Regulatory Mechanism of miR-153-3p on Lumbar Degeneration[J]. Journal of Kunming Medical University, 2023, 44(8): 53-58. doi: 10.12259/j.issn.2095-610X.S20230807
Citation: Shan YU, Lin XIAO, Dongping GONG, Loufeng LIANG, Anwei LIANG, Xiayi XU, Jie LIN, Huaxin LIANG. The Regulatory Mechanism of miR-153-3p on Lumbar Degeneration[J]. Journal of Kunming Medical University, 2023, 44(8): 53-58. doi: 10.12259/j.issn.2095-610X.S20230807

The Regulatory Mechanism of miR-153-3p on Lumbar Degeneration

doi: 10.12259/j.issn.2095-610X.S20230807
  • Received Date: 2023-05-13
    Available Online: 2023-09-06
  • Publish Date: 2023-08-30
  •   objective  To investigate the effect of H2O2 on lumbar nucleus pulposus cells and the regulatory mechanism of miR-153-3p on lumbar degeneration.   Methods  CCK8 was used to detect cell viability in control group and H2O2 group, and flow cytometry was used to detect reactive oxygen species and mitochondrial membrane potential in the two groups, and qPCR was used to detect the expression levels of matrix metalloproteinase 3 (MMP3), Nrf2, miR-153-3p and type II collagen (COL-Ⅱ) in the above two groups. Results Compared with the control group, the H2O2-treated lumbar nucleus pulposus cells showed reduced viability and mitochondrial membrane potential. The expression levels of miR-153-3p, COL-Ⅱ, MMP3 and Nrf2 in the control group and the H2O2 group were detected by qPCR, and the results showed that there was no significant difference in Nrf2 expression levels in the control group and the H2O2 group (P < 0.05). The expression levels of miR-153-3p and MMP3 in the H2O2 group were lower than those in the control group, while the expression of COL-Ⅱ was lower than that in the control group and there was a statistical difference (P < 0.05). Western blot showed that the expression of Nrf2 in the control group, inhibitor-NC group and the inhibitor group was significantly higher than that in the control group and inhibitor-NC group (P < 0.05). The expression of Nrf2 in the cytoplasm and nucleus of inhibitor-NC group was not significantly different from that of control group (P > 0.05).   Conclusion  Inhibition of miR-153-3p expression can up-regulate the expression level of Nrf2 in lumbar nucleus pulposus cells, suggesting that miR-153-3p's involvement in the process of LDD may be related to its regulation of Nrf2 expression and mitochondrial autophagy.
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