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09:07
Chemical Reversion of Conventional Human Pluripotent Stem Cells to a Naïve-like State with Improved Multilineage Differentiation Potency
Published on: June 10, 2018
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Naive Pluripotent Stem Cells Exhibit Phenotypic Variability that Is Driven by Genetic Variation
Daniel Ortmann1, Stephanie Brown1, Anne Czechanski2
1Wellcome Trust and MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, UK; Department of Surgery, University of Cambridge, Cambridge, UK.
Cell Stem Cell
|August 16, 2020
Summary
Genetic background significantly impacts pluripotent stem cell (PSC) differentiation, even under naive conditions. This variability, influenced by genetic variants and signaling pathways like Wnt, is a key challenge for stem cell applications.
Area of Science:
- Stem Cell Biology
- Genetics
- Epigenetics
Background:
- Pluripotent stem cell (PSC) line variability is a major obstacle for research reproducibility and therapeutic applications.
- Both epigenetic and genetic factors contribute to stem cell behavior and differentiation potential.
Purpose of the Study:
- To investigate the role of genetic background in PSC phenotypic variability under naive culture conditions.
- To determine if genetic factors override epigenetic influences on stem cell differentiation capacity.
Main Methods:
- Derivation of PSCs from distinct mouse strains under naive culture conditions.
- Assessment of differentiation capacity across genetically diverse PSC lines.
- Analysis of extracellular signaling pathways, including the Wnt pathway.
Main Results:
- PSC lines from different genetic backgrounds exhibited divergent differentiation capacities, confirming a significant role for genetics.
- Inconsistent Wnt pathway activity, modulated by specific genetic variants, partially explained the observed variability.
- Naive culture conditions did not fully eliminate genetic influences on PSC differentiation.
Conclusions:
- Genetic background is a dominant factor driving phenotypic variability in PSCs.
- Understanding genetic influences is crucial for overcoming challenges in stem cell research and therapy.
- Targeting genetic variants may be necessary to standardize PSC behavior for clinical use.
Keywords:
differentiationeQTLgeneticsground statemouse embryonic stem cellsnaïvepluripotent stem cellssignalingvariabilityMore Related Videos
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