JAK/STAT3 signalling is sufficient and dominant over antagonistic cues for the establishment of naive pluripotency
Open Access
- 1 January 2012
- journal article
- research article
- Published by Springer Science and Business Media LLC in Nature Communications
- Vol. 3 (1), 1-12
- https://doi.org/10.1038/ncomms1822
Abstract
Induced pluripotency depends on cooperativity between expression of defined factors and the culture environment. The latter also determines the pluripotent cell state, that is, naïve or primed. LIF-JAK/STAT3 signalling was recently shown to be a limiting factor for reprogramming to naïve pluripotency. Here we show that sufficient activation of JAK/STAT3 overcomes the reprogramming block of cell intermediates and enables somatic cell reprogramming in absence of otherwise essential pluripotency medium requisites. Activation of FGF-ERK signalling, which promotes exit of naïve pluripotent cells from self-renewal, does not prevent JAK/STAT3 induced post-implantation epiblast-derived stem cell conversion into naïve pluripotency. Moreover, even in the presence of FGF plus Activin, which instructs and maintains the primed state, JAK/STAT3 enforces naïve pluripotency in epiblast stem cells. We conclude that JAK/STAT3 signalling can be sufficient and dominant over antagonistic cues to enable the induction of a naïve pluripotent state.Keywords
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