Cited by 37Developmental Biology and Gene RegulationFOXO transcription factor regulationReproductive Biology and Fertility

FOXO/Fringe is necessary for maintenance of the germline stem cell niche in response to insulin insufficiency

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Yang, Sheng-An, Wang, Wen-Der, Chen, Ciao-Ting, Tseng, Chen-Yuan, Chen, Yi-Ning, Hsu, Hwei-Jan·2013·Developmental Biology

Abstract

The stem cell niche houses and regulates stem cells by providing both physical contact and local factors that regulate stem cell identity. The stem cell niche also plays a role in integrating niche-local and systemic signals, thereby ensuring that the balance of stem cells meets the needs of the organism. However, it is not clear how these signals are merged within the niche. Nutrient-sensing insulin/FOXO signaling has been previously shown to directly control Notch activation in the Drosophila female germline stem cell (GSC) niche, which maintains the niche and GSC identity. Here, we demonstrate that FOXO directly activates transcription of fringe, a gene encoding a glycosyltransferase that modulates Notch glycosylation. Fringe facilitates Notch inactivation in the GSC niche when insulin signaling is low. We also show that the Notch ligand predominantly involved is GSC niche-derived Delta. These results reveal that FOXO-mediated regulation of fringe links the insulin and Notch signaling pathways in the GSC niche in response to nutrition, and emphasize that stem cells are regulated by complex interactions between niche-local and systemic signals.

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Crossref · 10.1016/j.ydbio.2013.07.018

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  • Nutrient-sensing pathways SIRT1, AMPK and FoxO may be molecular effectors of calorie restriction's benefits on stem cell activity.

    “Signaling pathways related to nutrient sensing and uptake, such as SIRT1, AMPK and FoxO, may represent molecular effectors of the benefits of CR on stem cell activity113,114, although a complete understanding of how CR affects stem cell function must await further studies.”

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Research works printed but not linked: 2

  1. Spradling, A.C., 1993. In: Martinez-Arias MBaA (Ed.), Developmental Genetics of Oogenesis, 1. Cold Spring Harbor Laboratory Press, New York, pp. 1-70.
  2. Westerfield, M., 1993. The Zebrafish Book. University of Oregon Press, Eugene.

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Authors
Yang, S.-A., Wang, W.-D., Chen, C.-T., Tseng, C.-Y., Chen, Y.-N., & Hsu, H.-J.
Affiliations
  • Institute of Cellular and Organismic Biology, Academia Sinica (TW)
  • National Chiayi University (TW)
  • Institute of Molecular Biology, Academia Sinica (TW)
Corresponding author
Hsu, Hwei-Jan
Venue
Developmental Biology
Publisher
Elsevier BV
Published
2013-10
Volume
382
Issue
1
Pages
124-135
ISSN
0012-1606 (ISSN-L)
OpenAlex
W2096373575
Cited by
37
References
55
Citations by year
2025: 2 · 2024: 2 · 2023: 6 · 2022: 1 · 2021: 1 · 2020: 4 · 2019: 4 · 2018: 6 · 2017: 5 · 2016: 1 · 2015: 2 · 2014: 3
FWCI
0.90
Type
journal article
Language
en
Open access
Locations
  • Developmental Biology (publishedVersion)
  • PubMed (publishedVersion)
Funders
the Institute of Cellular and Organismic Biology, Academia Sinica, Taiwan (NSC 99-2311-B-001-023, 100-2311-B-001-016)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › FOXO transcription factor regulation
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Reproductive Biology and Fertility
Keywords
FOXO, fringe, germline stem cells, stem cell niche, insulin signaling, Notch signaling, Delta ligand, Drosophila, transcriptional regulation
MeSH terms
Animals, Base Sequence, Cell Count, Cell Nucleus, Drosophila melanogaster, Female, Germ Cells, Glycosylation, Insulin, Models, Biological, Molecular Sequence Data, Mutation, Promoter Regions, Genetic, Protein Binding, Receptor, Insulin, Transcription, Genetic, Zebrafish, Signal Transduction, N-Acetylglucosaminyltransferases, Drosophila Proteins, Forkhead Transcription Factors, Stem Cell Niche

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