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Related Experiment Video

Updated: May 18, 2026

Generation of Transgenic Hydra by Embryo Microinjection

Generation of Transgenic Hydra by Embryo Microinjection

Published on: September 11, 2014

Migration of multipotent interstitial stem cells in Hydra.

Anna-Marei Boehm¹, Thomas C G Bosch

¹Zoological Institute, Christian Albrechts University, Olshausenstrasse 40, D-24098 Kiel, Germany. amboehm@zoologie.uni-kiel.de

Zoology (Jena, Germany)

|September 7, 2012

Summary

Hydra stem cells are stationary, not migratory, challenging previous assumptions. Microenvironmental cues can trigger their migration to repopulate depleted niches, revealing new insights into stem cell behavior.

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Generation and Long-term Maintenance of Nerve-free Hydra

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Last Updated: May 18, 2026

Generation of Transgenic Hydra by Embryo Microinjection

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Published on: September 11, 2014

Generation and Long-term Maintenance of Nerve-free Hydra

Generation and Long-term Maintenance of Nerve-free Hydra

Published on: July 7, 2017

Area of Science:

Developmental Biology
Stem Cell Biology
Evolutionary Biology

Background:

Stem cells in Hydra offer insights into ancient stem cell control mechanisms.
Interstitial stem cells are multipotent, differentiating into somatic and germ cells.
The migratory potential of these stem cells in vivo remains largely unexplored.

Purpose of the Study:

To investigate the in vivo migratory behavior of multipotent interstitial stem cells in Hydra.
To determine if interstitial stem cells are inherently migratory or responsive to environmental cues.

Main Methods:

In vivo tracing of genetically labeled interstitial stem cells.
Tissue transplantation experiments in Hydra.
Analysis of stem cell distribution and behavior in response to niche depletion.

Main Results:

Multipotent interstitial stem cells in Hydra are predominantly stationary.
Stem cell migration is initiated only when the tissue is depleted of interstitial cells.
Interstitial stem cells actively repopulate emptied stem cell niches.

Conclusions:

Multipotent interstitial stem cells in Hydra exhibit static behavior.
Microenvironmental cues, including signals from the interstitial cell lineage or niche cells, can induce stem cell migration.
This suggests a dynamic regulation of stem cell positioning based on niche availability.