Open Access

MicroRNA-188-3p is involved in sevoflurane anesthesia-induced neuroapoptosis by targeting MDM2

  • Authors:
    • Lei Wang
    • Mengliang Zheng
    • Shuishui Wu
    • Zhiqiang Niu
  • View Affiliations

  • Published online on: January 16, 2018     https://doi.org/10.3892/mmr.2018.8437
  • Pages: 4229-4236
  • Copyright: © Wang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Sevoflurane is a commonly used inhalation anesthetic. Sevoflurane-induced neuroapoptosis and cognitive impairments in animals are widely reported, however, the underlying molecular mechanisms remain largely unknown. The results of the present study demonstrated that sevoflurane anesthesia induced spatial memory impairments in rats, as determined by the Morris water maze test. Mechanistically, the current study demonstrated that sevoflurane administration significantly enhanced the expression of microRNA (miR)‑188‑3p. Furthermore, inhibition of miR‑188‑3p using lentiviral miR‑188‑3p inhibitors attenuated sevoflurane‑induced cognitive impairments in rats. The present study also demonstrated that miR‑188‑3p targeted MDM2 proto‑oncogene (MDM2) and negatively regulated the expression of MDM2, as determined by luciferase assays, reverse transcription‑quantitative polymerase chain reaction and western blot analysis. Furthermore, decreased abundance of MDM2 following transfection with miR‑188‑3p mimics was associated with increased stability of p53 protein. Suppression of p53 activity using the specific p53 inhibitor pifithrin‑α alleviated sevoflurane‑induced neuroapoptosis. These results indicate that the miR‑188‑3p‑MDM2‑p53 axis may have a critical role in sevoflurane‑induced cognitive dysfunction. Therefore, miR‑188‑3p may be a potential target for the treatment of sevoflurane‑induced cognitive impairment.
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March-2018
Volume 17 Issue 3

Print ISSN: 1791-2997
Online ISSN:1791-3004

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Spandidos Publications style
Wang L, Zheng M, Wu S and Niu Z: MicroRNA-188-3p is involved in sevoflurane anesthesia-induced neuroapoptosis by targeting MDM2. Mol Med Rep 17: 4229-4236, 2018
APA
Wang, L., Zheng, M., Wu, S., & Niu, Z. (2018). MicroRNA-188-3p is involved in sevoflurane anesthesia-induced neuroapoptosis by targeting MDM2. Molecular Medicine Reports, 17, 4229-4236. https://doi.org/10.3892/mmr.2018.8437
MLA
Wang, L., Zheng, M., Wu, S., Niu, Z."MicroRNA-188-3p is involved in sevoflurane anesthesia-induced neuroapoptosis by targeting MDM2". Molecular Medicine Reports 17.3 (2018): 4229-4236.
Chicago
Wang, L., Zheng, M., Wu, S., Niu, Z."MicroRNA-188-3p is involved in sevoflurane anesthesia-induced neuroapoptosis by targeting MDM2". Molecular Medicine Reports 17, no. 3 (2018): 4229-4236. https://doi.org/10.3892/mmr.2018.8437