
In this Essay, we argue that pluripotent epiblast founder cells in the embryo and embryonic stem (ES) cells in culture represent the ground state for a mammalian cell, signified by freedom from developmental specification or epigenetic restriction and capacity for autonomous self-replication. We speculate that cell-to-cell variation may be integral to the ES cell condition, safe-guarding self-renewal while continually presenting opportunities for lineage specification.
Pluripotent Stem Cells, Biochemistry, Genetics and Molecular Biology(all), Essay, Embryo, Mammalian, Mice, Animals, Humans, Cell Lineage, Extracellular Signal-Regulated MAP Kinases, Embryonic Stem Cells, Transcription Factors
Pluripotent Stem Cells, Biochemistry, Genetics and Molecular Biology(all), Essay, Embryo, Mammalian, Mice, Animals, Humans, Cell Lineage, Extracellular Signal-Regulated MAP Kinases, Embryonic Stem Cells, Transcription Factors
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