Transcriptomics

Dataset Information

0

Cell and chromatin transitions in intestinal stem cell regeneration


ABSTRACT: The progeny of intestinal stem cells (ISCs) dedifferentiate in response to ISC attrition. The precise cell sources, transitional states, and chromatin remodeling behind this activity remain unclear. In the skin, stem cell recovery after injury preserves an epigenetic memory of the damage response; whether similar memories arise and persist in regenerated ISCs is not known. We address these questions by examining gene activity and open chromatin at the resolution of single Neurog3-labeled mouse intestinal crypt cells, hence deconstructing forward and reverse differentiation of the intestinal secretory (Sec) lineage. We show that goblet, Paneth, and enteroendocrine cells arise by multilineage priming in common precursors, followed by selective access at thousands of cell-restricted cis-elements. Selective ablation of the ISC compartment elicits speedy reversal of chromatin and transcriptional features in large fractions of precursor and mature crypt Sec cells without obligate cell cycle re-entry. ISC programs decay and reappear along a cellular continuum lacking discernible discrete interim states. In the absence of gross tissue damage, Sec cells simply reverse their forward trajectories, without invoking developmental or other extrinsic programs, and starting chromatin identities are effectively erased. These findings identify strikingly plastic molecular frameworks in assembly and regeneration of a self-renewing tissue.

ORGANISM(S): Mus musculus

PROVIDER: GSE183299 | GEO | 2022/06/07

REPOSITORIES: GEO

Dataset's files

Source:
Action DRS
Other
Items per page:
1 - 1 of 1

Similar Datasets

2024-03-24 | GSE205229 | GEO
2024-10-18 | GSE233260 | GEO
2013-12-20 | E-GEOD-52402 | biostudies-arrayexpress
2011-03-14 | E-GEOD-27605 | biostudies-arrayexpress
2021-09-14 | GSE133691 | GEO
2023-03-01 | GSE212601 | GEO
2023-02-21 | GSE211275 | GEO
2011-03-14 | GSE27605 | GEO
2022-09-08 | GSE185354 | GEO
2022-09-08 | GSE185350 | GEO