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Curr Opin Cell Biol. 2014 Dec;31:39-45. doi: 10.1016/j.ceb.2014.07.002. Epub 2014 Sep 15.

Lineage selection and plasticity in the intestinal crypt.

Author information

1
Department of Oncology, University of Cambridge, Hutchison/Medical Research Council (MRC) Research Centre, Cambridge CB2 0XZ, UK.
2
Cancer Research UK Cambridge Institute, University of Cambridge, Li Ka Shing Centre, Robinson Way, Cambridge CB2 0RE, UK. Electronic address: djw@cruk.cam.ac.uk.

Abstract

We know more about the repertoire of cellular behaviours that define the stem and progenitor cells maintaining the intestinal epithelium than any other renewing tissue. Highly dynamic and stochastic processes define cell renewal. Historically the commitment step in differentiation is viewed as a ratchet, irreversibly promoting a given fate and corresponding to a programme imposed at the point of cell division. However, the emerging view of intestinal self-renewal is one of plasticity in which a stem cell state is easily reacquired. The pathway mediators of lineage selection are largely known but how they interface within highly dynamic populations to promote different lineages and yet permit plasticity is not. Advances in understanding gene regulation in the nervous system suggest possible mechanisms.

PMID:
25083805
PMCID:
PMC4238899
DOI:
10.1016/j.ceb.2014.07.002
[Indexed for MEDLINE]
Free PMC Article

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