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J Biol Chem. 2013 Sep 6;288(36):26157-66. doi: 10.1074/jbc.M113.502492. Epub 2013 Jul 23.

Naive-like conversion overcomes the limited differentiation capacity of induced pluripotent stem cells.

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Organization for Promotion of Tenure Track, University of Miyazaki, 5200, Kibara, Kiyotake, Miyazaki 889-1692, Japan.


Although induced pluripotent stem (iPS) cells are indistinguishable from ES cells in their expression of pluripotent markers, their differentiation into targeted cells is often limited. Here, we examined whether the limited capacity of iPS cells to differentiate into neural lineage cells could be mitigated by improving their base-line level of pluripotency, i.e. by converting them into the so-called "naive" state. In this study, we used rabbit iPS and ES cells because of the easy availability of both cell types and their typical primed state characters. Repeated passages of the iPS cells permitted their differentiation into early neural cell types (neural stem cells, neurons, and glial astrocytes) with efficiencies similar to ES cells. However, unlike ES cells, their ability to differentiate later into neural cells (oligodendrocytes) was severely compromised. In contrast, after these iPS cells had been converted to a naive-like state, they readily differentiated into mature oligodendrocytes developing characteristic ramified branches, which could not be attained even with ES cells. These results suggest that the naive-like conversion of iPS cells might endow them with a higher differentiation capacity.


Cell Culture; Embryonic Stem Cell; Induced Pluripotent Stem (iPS) Cell; Naive; Neurodifferentiation; Oligodendrocytes; Primed; Rabbit

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