Abstract:
:Cockayne syndrome (CS) is a human premature aging disorder associated with neurological and developmental abnormalities, caused by mutations mainly in the CS group B gene (ERCC6). At the molecular level, CS is characterized by a deficiency in the transcription-couple DNA repair pathway. To understand the role of this molecular pathway in a pluripotent cell and the impact of CSB mutation during human cellular development, we generated induced pluripotent stem cells (iPSCs) from CSB skin fibroblasts (CSB-iPSC). Here, we showed that the lack of functional CSB does not represent a barrier to genetic reprogramming. However, iPSCs derived from CSB patient's fibroblasts exhibited elevated cell death rate and higher reactive oxygen species (ROS) production. Moreover, these cellular phenotypes were accompanied by an up-regulation of TXNIP and TP53 transcriptional expression. Our findings suggest that CSB modulates cell viability in pluripotent stem cells, regulating the expression of TP53 and TXNIP and ROS production.
journal_name
Hum Mol Genetjournal_title
Human molecular geneticsauthors
Andrade LN,Nathanson JL,Yeo GW,Menck CF,Muotri ARdoi
10.1093/hmg/dds211subject
Has Abstractpub_date
2012-09-01 00:00:00pages
3825-34issue
17eissn
0964-6906issn
1460-2083pii
dds211journal_volume
21pub_type
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