Balancing Self-renewal Against Genome Preservation in Stem Cells: How Do They Manage to Have the Cake and Eat It Too?

Overview

Journal Cell Mol Life Sci

Publisher Springer

Specialty Biology

Date 2016 Feb 18

PMID 26886024

Citations 8

Authors

Robert Y L Tsai

Affiliations

Soon will be listed here.

Abstract

Stem cells are endowed with the awesome power of self-renewal and multi-lineage differentiation that allows them to be major contributors to tissue homeostasis. Owing to their longevity and self-renewal capacity, they are also faced with a higher risk of genomic damage compared to differentiated cells. Damage on the genome, if not prevented or repaired properly, will threaten the survival of stem cells and culminate in organ failure, premature aging, or cancer formation. It is therefore of paramount importance that stem cells remain genomically stable throughout life. Given their unique biological and functional requirement, stem cells are thought to manage genotoxic stress somewhat differently from non-stem cells. The focus of this article is to review the current knowledge on how stem cells escape the barrage of oxidative and replicative DNA damage to stay in self-renewal. A clear statement on this subject should help us better understand tissue regeneration, aging, and cancer.

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