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AIF knockdown induce apoptosis and mitochondrial dysfunction in cochlear spiral ganglion neurons in vitro

  • Authors:
    • Liang Zong
    • Jiandong Zhao
    • Wenming Wu
    • Jialing Wang
    • Deliang Huang
    • Mingbo Liu
  • View Affiliations / Copyright

    Affiliations: Department of Otolaryngology‑Head and Neck Surgery, Institute of Otolaryngology, PLA General Hospital, Beijing 100853, P.R. China
    Copyright: © Zong et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Pages: 1910-1920
    |
    Published online on: January 31, 2020
       https://doi.org/10.3892/mmr.2020.10970
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Abstract

The underlying mechanism involved in auditory neuropathy spectrum disorder (ANSD) remains largely unclear. It has been previously reported that mutations in the apoptosis‑inducing factor (AIF) gene are associated with auditory neuropathy and delayed peripheral neuropathy, which can eventually cause ANSD. In the present study, the regulatory effects of AIF knockdown on the cellular functions of spiral ganglion neurons (SNGs) and the molecular mechanism(s) of AIF knockdown in inducing cell apoptosis in SGNs were further investigated. The results showed that the AIF knockdown via siRNA transfection resulted in high levels of oxidative stress, and impaired mitochondrial respiration activity and membrane potential in SGNs. Western blotting further proved that the knockdown of AIF can decrease the content of anti‑apoptotic and anti‑oxidative proteins, as well as mitochondrial respiratory chain Complex I proteins. The present experimental data suggested that the abnormal expression of AIF may affect SGNs cellular function, and may contribute to the progress of ANSD.
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Copy and paste a formatted citation
Spandidos Publications style
Zong L, Zhao J, Wu W, Wang J, Huang D and Liu M: AIF knockdown induce apoptosis and mitochondrial dysfunction in cochlear spiral ganglion neurons in vitro. Mol Med Rep 21: 1910-1920, 2020.
APA
Zong, L., Zhao, J., Wu, W., Wang, J., Huang, D., & Liu, M. (2020). AIF knockdown induce apoptosis and mitochondrial dysfunction in cochlear spiral ganglion neurons in vitro. Molecular Medicine Reports, 21, 1910-1920. https://doi.org/10.3892/mmr.2020.10970
MLA
Zong, L., Zhao, J., Wu, W., Wang, J., Huang, D., Liu, M."AIF knockdown induce apoptosis and mitochondrial dysfunction in cochlear spiral ganglion neurons in vitro". Molecular Medicine Reports 21.4 (2020): 1910-1920.
Chicago
Zong, L., Zhao, J., Wu, W., Wang, J., Huang, D., Liu, M."AIF knockdown induce apoptosis and mitochondrial dysfunction in cochlear spiral ganglion neurons in vitro". Molecular Medicine Reports 21, no. 4 (2020): 1910-1920. https://doi.org/10.3892/mmr.2020.10970
Copy and paste a formatted citation
x
Spandidos Publications style
Zong L, Zhao J, Wu W, Wang J, Huang D and Liu M: AIF knockdown induce apoptosis and mitochondrial dysfunction in cochlear spiral ganglion neurons in vitro. Mol Med Rep 21: 1910-1920, 2020.
APA
Zong, L., Zhao, J., Wu, W., Wang, J., Huang, D., & Liu, M. (2020). AIF knockdown induce apoptosis and mitochondrial dysfunction in cochlear spiral ganglion neurons in vitro. Molecular Medicine Reports, 21, 1910-1920. https://doi.org/10.3892/mmr.2020.10970
MLA
Zong, L., Zhao, J., Wu, W., Wang, J., Huang, D., Liu, M."AIF knockdown induce apoptosis and mitochondrial dysfunction in cochlear spiral ganglion neurons in vitro". Molecular Medicine Reports 21.4 (2020): 1910-1920.
Chicago
Zong, L., Zhao, J., Wu, W., Wang, J., Huang, D., Liu, M."AIF knockdown induce apoptosis and mitochondrial dysfunction in cochlear spiral ganglion neurons in vitro". Molecular Medicine Reports 21, no. 4 (2020): 1910-1920. https://doi.org/10.3892/mmr.2020.10970
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