Cited by 172FOXO transcription factor regulationRedox biology and oxidative stressCell death mechanisms and regulation

FOXO3a-dependent regulation of Pink1 (Park6) mediates survival signaling in response to cytokine deprivation

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Mei, Yang, Zhang, Yiru, Yamamoto, Kazuo, Xie, Wei, Mak, Tak W., You, Han·2009·Proceedings of the National Academy of Sciences

Abstract

Loss-of-function mutations of phosphatase/tensin homolog deleted on chromosome 10 (PTEN)-induced putative kinase 1 (Pink1) (also known as Park6) identified in familial forms of Parkinson's disease (PD) are associated with compromised mitochondrial function. Emerging data suggest that Pink1 is an essential pro-survival factor that is induced in response to oxidative stress. However, the mechanisms regulating Pink1 expression under stress conditions remain unknown. Forkhead box, subgroup O (FOXO) transcription factors carry out distinct biological functions in response to different extracellular signals. Notably, FOXO factors possess evolutionarily conserved roles in protecting cells from oxidative stress-induced death. Here we report that the FOXO family member FOXO3a controls Pink1 transcription in both mouse and human cells subjected to growth factor deprivation and that this regulation is exerted through evolutionarily conserved FOXO binding elements. Induction of Pink1 by FOXO3a is crucial for survival signals in lymphocytes, as depletion of Pink1 sensitizes these cells to death induced by deprivation of an essential growth factor. Our data reveal that the role of FOXO factors in protecting cells from growth factor deprivation-triggered apoptosis has been underestimated and that FOXOs mediate this protection by transactivating anti-apoptotic effectors like Pink1. Given the essential role of Pink1 in combating cell death, our findings may help to dissect the mechanisms by which FOXO proteins function as anti-oxidative stress factors.

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Crossref · 10.1073/pnas.0901104106

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  • FOXOs can act as critical regulators of mitochondrial homeostasis by regulating the expression of Mul1 and PINK1.

    “Interestingly, FOXOs can also act as critical regulators of mitochondrial homeostasis through, at least, two additional means: (i) by regulating the expression of Mul1, a mitochondrial E3 ubiquitin ligase that controls Mfn2 degradation rates (Lokireddy et al, 2012), and (ii) by regulating the expression of the PTEN-induced kinase 1 (PINK1), a key component of the mitophagy machinery (Mei et al, 2”

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Authors
Mei, Y., Zhang, Y., Yamamoto, K., Xie, W., Mak, T. W., & You, H.
Affiliations
  • Xiamen University (CN)
  • Princess Margaret Cancer Centre (CA)
Venue
Proceedings of the National Academy of Sciences
Published
2009-03-31
Volume
106
Issue
13
Pages
5153-5158
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2001469924
Cited by
172
References
30
Citations by year
2026: 11 · 2025: 5 · 2024: 3 · 2023: 11 · 2022: 11 · 2021: 15 · 2020: 9 · 2019: 8 · 2018: 13 · 2017: 13 · 2016: 9 · 2015: 7 · 2014: 10 · 2013: 7 · 2012: 12
FWCI
5.23
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Natural Science Foundation of China
  • School of Medicine, Stanford University
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › FOXO transcription factor regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
Keywords
FOXO3, PINK1, PARK6, transcriptional regulation, cytokine deprivation, growth factor deprivation, apoptosis, cell survival signaling, lymphocytes, oxidative stress, Parkinson's disease, mitochondrial function
MeSH terms
Forkhead Box Protein O3, PTEN-Induced Putative Kinase, Animals, Cell Line, Cell Survival, Humans, Lymphocytes, Protein Kinases, Transcriptional Activation, Conserved Sequence, Oxidative Stress, Regulatory Elements, Transcriptional, Mice, Forkhead Transcription Factors

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