Cited by 58Autophagy in Disease and TherapyPluripotent Stem Cells ResearchFOXO transcription factor regulation

High autophagic flux guards ESC identity through coordinating autophagy machinery gene program by FOXO1

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Liu, Pinglei, Liu, Kun, Gu, Haifeng, Wang, Weixu, Gong, Jiaqi, Zhu, Yingjie, Zhao, Qian, Cao, Jiani +8 more·2017·Cell Death & Differentiation

Abstract

Although much is known about transcriptional networks that control embryonic stem cell (ESC) self-renewal and differentiation, the metabolic regulation of ESC is less clear. Autophagy is a catabolic process that is activated under both stress and normal conditions to degrade damaged organelles and aggregated proteins, and thus plays pivotal roles in somatic and adult stem cell function. However, if and how ESCs harness autophagy to regulate stemness remains largely unknown. Recently, we have defined that autophagy is essential for mitochondrial homeostasis regulation in pluripotency acquirement and maintenance. Here we identified high autophagic flux as an essential mechanism to maintain ESC identity. We show that mouse ESCs exhibit a high autophagic flux that is maintained by coordinating expression of autophagy core molecular machinery genes through FOXO1, a forkhead family transcription factor. Tapering autophagic flux by manipulating either Atg3 or Foxo1 expression compromised ESC self-renewal, pluripotency, and differentiation that could be restored by gain of wild-type but not function-deficient Atg3 or Foxo1 mutants, respectively. Our results define a newly recognized role of autophagic flux in mouse ESC identity maintenance that links cellular catabolism to ESC fate regulation.

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Crossref · 10.1038/cdd.2017.90

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  • Proficient autophagic responses most often mediate cytoprotective rather than cytotoxic effects in adaptation to stress.

    “Proficient autophagic responses (which are under tight transcriptional and post-translational regulation) [509 799–805] most often operate at the hub of adaptation to stress, hence mediating cytoprotective (rather than cytotoxic) effects [806–811].”

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  1. Kim J, Kundu M, Viollet B, Guan KL. AMPK and mTOR regulate autophagy through direct phosphorylation of Ulk1. Nat Cell Biol 2013; 13: 132-141.

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Authors
Liu, P., Liu, K., Gu, H., Wang, W., Gong, J., Zhu, Y., Zhao, Q., Cao, J., Han, C., Gao, F., Chen, Q., Li, W., Jiao, J., Hu, B., Zhou, Q., & Zhao, T.
Affiliations
Chinese Academy of Sciences (CN)
Corresponding author
Zhao, Tongbiao
Venue
Cell Death & Differentiation
Published
2017-06-16
Volume
24
Issue
10
Pages
1672-1680
ISSN
  • 1350-9047 (ISSN-L)
  • 1476-5403
OpenAlex
W2626062067
Cited by
58
References
52
Citations by year
2026: 2 · 2025: 2 · 2024: 5 · 2023: 1 · 2022: 12 · 2021: 10 · 2020: 9 · 2019: 6 · 2018: 7 · 2017: 2
FWCI
5.14
Type
journal article
Language
en
Open access
Locations
  • Cell Death and Differentiation (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Natural Science Foundation of China (31271592, 31621004, 31570995)
  • Chinese Academy of Sciences (XDA01040108, 31621004)
  • National Key Research and Development Program of China (2013CB966901, 31621004)
  • Thousand Young Talents Program of China
Topics
  • Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Pluripotent Stem Cells Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › FOXO transcription factor regulation
Keywords
autophagic flux, embryonic stem cells, FOXO1, ATG3, stem cell self-renewal, pluripotency, mitochondrial homeostasis, stem cell fate regulation
MeSH terms
Mouse Embryonic Stem Cells, Cell Self Renewal, Forkhead Box Protein O1, Animals, Autophagy, Cell Differentiation, Cell Line, Gene Expression Regulation, Pluripotent Stem Cells, Mice, Gene Regulatory Networks

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