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Promotive role of microRNA‑150 in hippocampal neurons apoptosis in vascular dementia model rats

  • Authors:
    • Chengqun Wei
    • Xiuzhi Xu
    • Hongyan Zhu
    • Xiuyan Zhang
    • Zhan Gao
  • View Affiliations / Copyright

    Affiliations: Department of General Practice, Heilongjiang Provincial Hospital, Harbin, Heilongjiang 150001, P.R. China, Department of Neurology, Heilongjiang Provincial Hospital, Harbin, Heilongjiang 150001, P.R. China
    Copyright: © Wei et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Article Number: 257
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    Published online on: February 5, 2021
       https://doi.org/10.3892/mmr.2021.11896
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Abstract

Cognitive impairment is one of the primary features of vascular dementia (VD). However, the specific mechanism underlying the regulation of cognition function in VD is not completely understood. The present study aimed to explore the effects of microRNA (miR)‑150 on VD. To determine the effects of miR‑150 on cognitive function and hippocampal neurons in VD model rats, rats were subjected to intracerebroventricular injections of miR‑150 antagomiR. The Morris water maze test results demonstrated that spatial learning ability was impaired in VD model rats compared with control rats. Moreover, compared with antagomiR negative control (NC), miR‑150 antagomiR alleviated cognitive impairment and enhanced memory ability in VD model rats. The triphenyltetrazolium chloride, Nissl staining and immunohistochemistry results further demonstrated that miR‑150 knockdown improved the activity of hippocampal neurons in VD model rats compared with the antagomiR NC group. To validate the role of miR‑150 in neurons in vitro, the PC12 cell line was used. The flow cytometry and Hoechst 33342/PI double staining results indicated that miR‑150 overexpression significantly increased cell apoptosis compared with the mimic NC group. Moreover, the dual‑luciferase reporter gene assay results indicated that miR‑150 targeted HOXA1 and negatively regulated HOXA1 expression. Therefore, the present study indicated that miR‑150 knockdown ameliorated VD symptoms by upregulating HOXA1 expression in vivo and in vitro.
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Copy and paste a formatted citation
Spandidos Publications style
Wei C, Xu X, Zhu H, Zhang X and Gao Z: Promotive role of microRNA‑150 in hippocampal neurons apoptosis in vascular dementia model rats. Mol Med Rep 23: 257, 2021.
APA
Wei, C., Xu, X., Zhu, H., Zhang, X., & Gao, Z. (2021). Promotive role of microRNA‑150 in hippocampal neurons apoptosis in vascular dementia model rats. Molecular Medicine Reports, 23, 257. https://doi.org/10.3892/mmr.2021.11896
MLA
Wei, C., Xu, X., Zhu, H., Zhang, X., Gao, Z."Promotive role of microRNA‑150 in hippocampal neurons apoptosis in vascular dementia model rats". Molecular Medicine Reports 23.4 (2021): 257.
Chicago
Wei, C., Xu, X., Zhu, H., Zhang, X., Gao, Z."Promotive role of microRNA‑150 in hippocampal neurons apoptosis in vascular dementia model rats". Molecular Medicine Reports 23, no. 4 (2021): 257. https://doi.org/10.3892/mmr.2021.11896
Copy and paste a formatted citation
x
Spandidos Publications style
Wei C, Xu X, Zhu H, Zhang X and Gao Z: Promotive role of microRNA‑150 in hippocampal neurons apoptosis in vascular dementia model rats. Mol Med Rep 23: 257, 2021.
APA
Wei, C., Xu, X., Zhu, H., Zhang, X., & Gao, Z. (2021). Promotive role of microRNA‑150 in hippocampal neurons apoptosis in vascular dementia model rats. Molecular Medicine Reports, 23, 257. https://doi.org/10.3892/mmr.2021.11896
MLA
Wei, C., Xu, X., Zhu, H., Zhang, X., Gao, Z."Promotive role of microRNA‑150 in hippocampal neurons apoptosis in vascular dementia model rats". Molecular Medicine Reports 23.4 (2021): 257.
Chicago
Wei, C., Xu, X., Zhu, H., Zhang, X., Gao, Z."Promotive role of microRNA‑150 in hippocampal neurons apoptosis in vascular dementia model rats". Molecular Medicine Reports 23, no. 4 (2021): 257. https://doi.org/10.3892/mmr.2021.11896
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