Cited by 125Marine Invertebrate Physiology and EcologyDevelopmental Biology and Gene RegulationPlanarian Biology and Electrostimulation

Transgenic stem cells in Hydra reveal an early evolutionary origin for key elements controlling self-renewal and differentiation

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Khalturin, Konstantin, Anton-Erxleben, Friederike, Milde, Sabine, Plötz, Christine, Wittlieb, Jörg, Hemmrich, Georg, Bosch, Thomas C.G.·2007·Developmental Biology

Abstract

Little is known about stem cells in organisms at the beginning of evolution. To characterize the regulatory events that control stem cells in the basal metazoan Hydra, we have generated transgenics which express eGFP selectively in the interstitial stem cell lineage. Using them we visualized stem cell and precursor migration in real-time in the context of the native environment. We demonstrate that interstitial cells respond to signals from the cellular environment, and that Wnt and Notch pathways are key players in this process. Furthermore, by analyzing polyps which overexpress the Polycomb protein HyEED in their interstitial cells, we provide in vivo evidence for a role of chromatin modification in terminal differentiation. These findings for the first time uncover insights into signalling pathways involved in stem cell differentiation in the Bilaterian ancestor; they demonstrate that mechanisms controlling stem cell behaviour are based on components which are conserved throughout the animal kingdom.

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Crossref · 10.1016/j.ydbio.2007.06.013

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Research works printed but not linked: 2

  1. Lindgens, D., Holstein, T.W., Technau, U., 2004. Hyzic, the Hydra homolog of the zic/odd-paired gene, is involved in the early specification of the sensory nematocytes. Development 131 (1), 191-201.
  2. U. S. A. 104 (3), 852-857.

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Authors
Khalturin, K., Anton-Erxleben, F., Milde, S., Plötz, C., Wittlieb, J., Hemmrich, G., & Bosch, T. C. G.
Affiliations
Christian-Albrechts-Universität zu Kiel (DE)
Corresponding author
Bosch, Thomas C.G.
Venue
Developmental Biology
Publisher
Elsevier BV
Published
2007-09
Volume
309
Issue
1
Pages
32-44
ISSN
0012-1606 (ISSN-L)
OpenAlex
W2157147630
Cited by
125
References
70
Citations by year
2026: 1 · 2025: 4 · 2024: 1 · 2023: 2 · 2022: 6 · 2021: 3 · 2020: 3 · 2019: 8 · 2018: 6 · 2017: 6 · 2016: 6 · 2015: 6 · 2014: 7 · 2013: 6 · 2012: 16
FWCI
9.64
Type
journal article
Language
en
Open access
Locations
  • Developmental Biology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Deutsche Forschungsgemeinschaft
Topics
  • Physical Sciences › Earth and Planetary Sciences › Paleontology › Marine Invertebrate Physiology and Ecology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Planarian Biology and Electrostimulation
Keywords
Hydra, interstitial stem cells, stem cell self-renewal, stem cell differentiation, Wnt signaling, Notch signaling, Polycomb group proteins, chromatin modification, terminal differentiation, stem cell migration, transgenic reporter, basal metazoans
MeSH terms
Animals, Cell Differentiation, Biological Evolution, Hydra, Stem Cells, Signal Transduction, Animals, Genetically Modified, Extracellular Fluid, Wnt Proteins, Receptors, Notch

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