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Gruenheit, Nicole, Parkinson, Katie, Brimson, CA Christopher A, Kuwana, Satoshi, Johnson, EJ Edward J, Nagayama, Koki, Llewellyn, Jack, Salvidge, WM William M, Stewart, Balint, Keller, Thomas, van Zon, Wouter, Cotter, SL Simon L, Thompson, CRL Christopher R L, (2018) ' Cell Cycle Heterogeneity Can Generate Robust Cell Type Proportioning. ' Dev. Cell 47 494-508.e4

 

Abstract:Cell-cell heterogeneity can facilitate lineage choice during embryonic development because it primes cells to respond to differentiation cues. However, remarkably little is known about the origin of heterogeneity or whether intrinsic and extrinsic variation can be controlled to generate reproducible cell type proportioning seen in vivo. Here, we use experimentation and modeling in D. discoideum to demonstrate that population-level cell cycle heterogeneity can be optimized to generate robust cell fate proportioning. First, cell cycle position is quantitatively linked to responsiveness to differentiation-inducing signals. Second, intrinsic variation in cell cycle length ensures cells are randomly distributed throughout the cell cycle at the onset of multicellular development. Finally, extrinsic perturbation of optimal cell cycle heterogeneity is buffered by compensatory changes in global signal responsiveness. These studies thus illustrate key regulatory principles underlying cell-cell heterogeneity optimization and the generation of robust and reproducible fate choice in development.
Status:	ppublish	Type:	Journal article	Source:	PUBMED	PubMed ID:	30473004

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	Genes addressed in this paper
	gefE	rasC	rasD	rasG	rigA	rigB	rrgB	uduB
Topics in this paper
Strains/Constructs	X	X	X	X	X	X	X	X
Synonym					X	X	X	X
Function/Process	X	X	X	X	X	X	X	X
Cell Cycle	X	X	X	X	X	X	X	X
Genetic Interactions	X		X		X			X
RNA Levels and Processing					X	X	X	X
Cell Type Localization	X	X	X	X	X		X	X
Mutants/Phenotypes	X	X	X	X	X	X	X	X