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Direct Induction of Hemogenic Endothelium and Blood by Overexpression of Transcription Factors in Human Pluripotent Stem Cells
Published on: December 3, 2015
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ETVs dictate hPSC differentiation by tuning biophysical properties
Natalia M Ziojła1, Magdalena Socha1, M Cecilia Guerra2
1Institute of Molecular Biology and Biotechnology, Adam Mickiewicz University, Poznan, Poland.
Nature Communications
|February 26, 2025
Summary
ETV transcription factors control stem cell biophysical properties and lineage commitment. Their loss disrupts cell adhesion and differentiation, impacting gastruloids and pancreatic development, offering insights for tissue engineering.
Area of Science:
- Stem cell biology
- Developmental biology
- Molecular genetics
Background:
- Stem cells interact dynamically with their microenvironment, integrating cues to control cellular behavior.
- Transcriptional networks governing stem cell biophysical properties are not well understood.
Purpose of the Study:
- To identify transcriptional regulators of human pluripotent stem cell (hPSC) biophysical properties and lineage commitment.
- To investigate the role of ETV transcription factors in hPSC morphogenesis and differentiation.
Main Methods:
- Utilized human pluripotent stem cells (hPSCs) in gastruloid and pancreatic differentiation models.
- Performed genetic ablation of ETV transcription factors (ETV1, ETV4, ETV5).
- Employed single-cell RNA sequencing and mechanotransduction assays.
Main Results:
- ETV transcription factors critically regulate hPSC biophysical parameters and lineage commitment.
- Genetic ablation of ETV1 or ETV1/ETV4/ETV5 increased cell-cell and cell-extracellular matrix adhesion.
- Loss of ETV1 disrupted gastruloid organization and abolished pancreatic progenitor formation, linked to dysregulated PI3K/AKT signaling.
Conclusions:
- Transcriptional control is crucial for regulating cell biophysical properties.
- ETV factors are essential for proper stem cell differentiation and tissue development.
- Modulating these biophysical properties holds potential for in vitro cell and tissue engineering.
