Wnt2 overexpression protects against PINK1 mutant‑induced mitochondrial dysfunction and oxidative stress

  • Authors:
    • Sui‑Rui Xia
    • Xue‑Yi Wen
    • Xiao‑Li Fan
    • Xiao‑Rong Chen
    • Zai‑Wa Wei
    • Qing‑Hua Li
    • Li Sun
  • View Affiliations

  • Published online on: April 8, 2020     https://doi.org/10.3892/mmr.2020.11066
  • Pages: 2633-2641
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Abstract

The PTEN induced putative kinase 1 (PINK1) mutation is the second most common cause of autosomal recessive adolescent Parkinson's disease (PD). Furthermore, mitochondrial disorders and oxidative stress are important mechanisms in the pathogenesis of PD. Numerous members of the Wnt family have been found to be associated with neurodegenerative diseases. Therefore, the present study investigated the role of the Wnt2 gene in PINK1B9 transgenic flies, which is a PD model, and its underlying mechanism. It was identified that overexpression of Wnt2 reduced the abnormality rate of PD transgenic Drosophila and improved their flight ability, while other intervention groups had no significant effect. Furthermore, an increase in ATP concentration normalized mitochondrial morphology, and increased the mRNA expression levels of NADH‑ubiquinone oxidoreductase chain 1 (ND1), ND42, ND75, succinate dehydrogenase complex subunits B, Cytochrome b and Cyclooxygenase 1, which are associated with Wnt2 overexpression. Moreover, overexpression of Wnt2 in PD transgenic Drosophila resulted in the downregulation of reactive oxygen species and malondialdehyde production, and increased manganese superoxide dismutase (MnSOD), while glutathione was not significantly affected. It was found that overexpression of Wnt2 did not alter the protein expression of β‑catenin in PINK1B9 transgenic Drosophila, but did increase the expression levels of PPARG coactivator 1α (PGC‑1α) and forkhead box sub‑group O (FOXO). Collectively, the present results indicated that the Wnt2 gene may have a protective effect on PD PINK1B9 transgenic Drosophila. Thus, it was speculated that the reduction of oxidative stress and the restoration of mitochondrial function via Wnt2 overexpression may be related to the PGC‑1α/FOXO/MnSOD signaling pathway in PINK1 mutant transgenic Drosophila.
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June-2020
Volume 21 Issue 6

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

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Spandidos Publications style
Xia SR, Wen XY, Fan XL, Chen XR, Wei ZW, Li QH and Sun L: Wnt2 overexpression protects against PINK1 mutant‑induced mitochondrial dysfunction and oxidative stress. Mol Med Rep 21: 2633-2641, 2020
APA
Xia, S., Wen, X., Fan, X., Chen, X., Wei, Z., Li, Q., & Sun, L. (2020). Wnt2 overexpression protects against PINK1 mutant‑induced mitochondrial dysfunction and oxidative stress. Molecular Medicine Reports, 21, 2633-2641. https://doi.org/10.3892/mmr.2020.11066
MLA
Xia, S., Wen, X., Fan, X., Chen, X., Wei, Z., Li, Q., Sun, L."Wnt2 overexpression protects against PINK1 mutant‑induced mitochondrial dysfunction and oxidative stress". Molecular Medicine Reports 21.6 (2020): 2633-2641.
Chicago
Xia, S., Wen, X., Fan, X., Chen, X., Wei, Z., Li, Q., Sun, L."Wnt2 overexpression protects against PINK1 mutant‑induced mitochondrial dysfunction and oxidative stress". Molecular Medicine Reports 21, no. 6 (2020): 2633-2641. https://doi.org/10.3892/mmr.2020.11066