Gene expression in pluripotent and TSKM-iPS induction cells.

We found that Tet1 (T) can substitute Oct4 and initiates somatic cell reprogramming in combination with Sox2 (S), Klf4 (K) and c-Myc (M). Moreover, the TSKM secondary reprogramming can proceed rapidly with widespread accompanying increase of 5hmC and 5mC at TSS and ES-active regulation regions followed by 5mC-5hmC pattern switchand, and the activation of endogenous Oct4 and Nanog was Tet1 and 5hmC involved in this process.

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Gao Y, Chen J, Li K, Wu T, Huang B, Liu W, Kou X, Zhang Y, Huang H, Jiang Y, Yao C, Liu X, Lu Z, Xu Z, Kang L, Chen J, Wang H, Cai T, Gao S