Abstract:
:Vitamin C, a micronutrient known for its anti-scurvy activity in humans, promotes the generation of induced pluripotent stem cells (iPSCs) through the activity of histone demethylating dioxygenases. TET hydroxylases are also dioxygenases implicated in active DNA demethylation. Here we report that TET1 either positively or negatively regulates somatic cell reprogramming depending on the absence or presence of vitamin C. TET1 deficiency enhances reprogramming, and its overexpression impairs reprogramming in the context of vitamin C by modulating the obligatory mesenchymal-to-epithelial transition (MET). In the absence of vitamin C, TET1 promotes somatic cell reprogramming independent of MET. Consistently, TET1 regulates 5-hydroxymethylcytosine (5hmC) formation at loci critical for MET in a vitamin C-dependent fashion. Our findings suggest that vitamin C has a vital role in determining the biological outcome of TET1 function at the cellular level. Given its benefit to human health, vitamin C should be investigated further for its role in epigenetic regulation.
journal_name
Nat Genetjournal_title
Nature geneticsauthors
Chen J,Guo L,Zhang L,Wu H,Yang J,Liu H,Wang X,Hu X,Gu T,Zhou Z,Liu J,Liu J,Wu H,Mao SQ,Mo K,Li Y,Lai K,Qi J,Yao H,Pan G,Xu GL,Pei Ddoi
10.1038/ng.2807subject
Has Abstractpub_date
2013-12-01 00:00:00pages
1504-9issue
12eissn
1061-4036issn
1546-1718pii
ng.2807journal_volume
45pub_type
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