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Mitotic memories of gene activity
Inma Gonzalez1, Amandine Molliex1, Pablo Navarro1
1Epigenomics, Proliferation and the Identity of Cells, Department of Developmental and Stem Cell Biology, Institut Pasteur, CNRS, UMR3738, Paris, France.
Current Opinion in Cell Biology
|January 17, 2021
Summary
Cells must maintain their identity after division. Chromatin-associated inheritance mechanisms help daughter cells accurately re-establish gene activity post-mitosis, ensuring cell identity preservation.
Area of Science:
- Cell Biology
- Genetics
- Epigenetics
Background:
- Cell division (mitosis) involves significant cellular changes that disrupt gene regulation and transcription.
- Preserving cell identity across generations requires daughter cells to accurately replicate the parent cell's gene expression profile.
Purpose of the Study:
- To review evidence on how daughter cells re-establish gene activity after mitosis.
- To explore chromatin-associated mechanisms responsible for gene regulatory inheritance.
Main Methods:
- Review of recent scientific literature.
- Analysis of chromatin-associated gene regulatory inheritance.
Main Results:
- Mitosis disrupts normal gene regulation and transcription.
- Distinct chromatin-associated mechanisms facilitate gene regulatory inheritance.
- These mechanisms improve the fidelity of gene activity re-establishment in daughter cells.
Conclusions:
- Chromatin-associated mechanisms are crucial for maintaining cell identity through generations.
- Efficient post-mitotic gene activity re-establishment relies on inherited regulatory information.
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