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Updated: Jul 3, 2026
14:08
Blastomere Explants to Test for Cell Fate Commitment During Embryonic Development
Published on: January 26, 2013
Developmental autonomy and somatic niche construction promotes robust cell fate decisions
Anya K Bershad1, Miguel A Fuentes, David C Krakauer
1Department of Pathology, Stanford University Medical Center, Stanford, CA 94305, USA.
Journal of Theoretical Biology
|July 8, 2008
Summary
Cellular signals, like survival signals, can minimize differentiation errors during development by creating a supportive somatic niche. Tissue development becomes signal-independent only when errors or density regulation are extremely high.
Area of Science:
- Developmental biology
- Cell signaling
- Evolutionary developmental biology
Background:
- Cell proliferation and differentiation are crucial for development.
- Both genetic programs and environmental cues influence cell fate.
- Developmental errors, such as incorrect differentiation, can occur.
Purpose of the Study:
- To investigate the role of cellular signals in minimizing developmental errors.
- To understand how environmental cues impact cell differentiation.
- To explore the concept of somatic niche construction in tissue development.
Main Methods:
- Mathematical modeling of cellular signaling pathways.
- Analysis of parameter regimes for developmental error minimization.
- Simulation of cell proliferation, differentiation, and density regulation.
Main Results:
- Trophic factors acting as survival signals can compensate for increased differentiation error rates.
- Somatic niche construction, through signal production, influences developmental outcomes.
- Tissue development transitions to a signal-independent state under high error or strong density regulation.
Conclusions:
- Cellular signals, particularly survival signals within the somatic niche, are vital for accurate tissue development.
- The degree of niche dependence is influenced by error rates and density regulation.
- Understanding somatic niche construction provides insights into developmental robustness.
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