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Updated: Aug 23, 2025
10:04
Patterning the Geometry of Human Embryonic Stem Cell Colonies on Compliant Substrates to Control Tissue-Level Mechanics
Published on: September 28, 2019
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Virtual cells in a virtual microenvironment recapitulate early development-like patterns in human pluripotent stem
Himanshu Kaul1, Nicolas Werschler2, Ross D Jones3
1School of Engineering, University of Leicester, Leicester, UK; Department of Respiratory Sciences, University of Leicester, Leicester, UK.
Stem Cell Reports
|November 4, 2022
Summary
We developed a gene regulatory network (GRN) model to understand early embryonic development. Simulations revealed non-intuitive effects of GRN wiring on tissue patterning, validated by experiments showing OCT4
Area of Science:
- Computational biology
- Developmental biology
- Stem cell biology
Background:
- Mechanisms linking morphogenetic signals to embryonic tissue patterning remain unclear.
- Understanding gene regulatory networks (GRNs) in early development is crucial.
Purpose of the Study:
- To model human pluripotent stem cell (hPSC) lineage commitment using a minimal GRN.
- To investigate how GRN wiring influences tissue pattern formation in response to signaling environments.
Main Methods:
- Developed a minimal GRN model of hPSC lineage commitment.
- Embedded the GRN into agent-based simulations within a dynamic microenvironment.
- Performed experimental perturbations of GRN connectivities.
Main Results:
- GRN wiring significantly impacted tissue pattern order, composition, and dynamics in simulations.
- Experimental validation supported model predictions.
- Identified OCT4 as a key regulator of peri-gastrulation fates.
Conclusions:
- The GARMEN strategy offers a multiscale computational platform for studying tissue development.
- This approach can simulate how single-cell regulatory interactions scale to tissue domains.
- Provides insights into normal and aberrant tissue development by analyzing network motifs.
Keywords:
agent-based modeldevelopmentdigital twinectodermendodermgastrulationgene regulatory networkmesodermmultiscale modelreaction diffusionMore Related Videos
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