Induction of Pluripotent Stem Cells from Mouse Embryonic Fibroblasts by Jdp2, Glis1, Essrb and Sall4 [ATAC-seq]

Reprogramming somatic cells to pluripotency represents a paradigm for cell fate determination. A binary logic of closing and opening chromatin provides a simple way to understand iPSC reprogramming driven by both Yamanaka factors or chemicals. Here we apply this logic to the design a four factor combination, Jdp2, Glis1, Essrb and Sall4 (4F), that reprogram MEFs to chimera competent iPSCs efficiently. RNA- and ATAC-seq reveal differences between JGES and 7F induced pluripotency, 7IP and JGES IP, in transcriptomic and chromatin accessibility dynamics(CAD). Sall4 emerges as a dominant force that can close and open chromatin with the help of Jdp2 and Glis1 in resetting somatic chromatin to a pluripotent state. These results reveal a previously unknown path between somatic and pluripotent states, open a door for cell fate control. In total, we collected 5 reprogramming samples from D0, D1, D3,D5 and D7 and the data sequenced by illumina nextseq 500.