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Title

CtIP-specific roles during cell reprogramming have long-term consequences in the survival and fitness of induced pluripotent stem cells

AuthorsGómez-Cabello, Daniel ; Checa-Rodriguez, Cintia; Abad, María; Serrano, Manuel; Huertas Sánchez, Pablo
KeywordsGenetic instability
iPSC
Cell reprogramming
DNA resection
Issue Date2017
PublisherElsevier
CitationStem Cell Reports 8(2): 432-445 (2017)
AbstractAcquired genomic instability is one of the major concerns for the clinical use of induced pluripotent stem cells (iPSCs). All reprogramming methods are accompanied by the induction of DNA damage, of which double-strand breaks are the most cytotoxic and mutagenic. Consequently, DNA repair genes seem to be relevant for accurate reprogramming to minimize the impact of such DNA damage. Here, we reveal that reprogramming is associated with high levels of DNA end resection, a critical step in homologous recombination. Moreover, the resection factor CtIP is essential for cell reprogramming and establishment of iPSCs, probably to repair reprogramming-induced DNA damage. Our data reveal a new role for DNA end resection in maintaining genomic stability during cell reprogramming, allowing DNA repair fidelity to be retained in both human and mouse iPSCs. Moreover, we demonstrate that reprogramming in a resection-defective environment has long-term consequences on stem cell self-renewal and differentiation
Publisher version (URL)https://doi.org/10.1016/j.stemcr.2016.12.009
URIhttp://hdl.handle.net/10261/165491
Identifiersdoi: 10.1016/j.stemcr.2016.12.009
e-issn: 2213-6711
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