Distinct Signaling Requirements for the Establishment of ESC Pluripotency in Late-Stage EpiSCs

Autor: Damir Jacob Illich, Miao Zhang, Andrei Ursu, Rodrigo Osorno, Kee-Pyo Kim, Juyong Yoon, Marcos J. Araúzo-Bravo, Guangming Wu, Daniel Esch, Davood Sabour, Douglas Colby, Kathrin S. Grassme, Jiayu Chen, Boris Greber, Susanne Höing, Wiebke Herzog, Slava Ziegler, Ian Chambers, Shaorong Gao, Herbert Waldmann, Hans R. Schöler
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Cell Reports, Vol 15, Iss 4, Pp 787-800 (2016)
Druh dokumentu: article
ISSN: 2211-1247
DOI: 10.1016/j.celrep.2016.03.073
Popis: It has previously been reported that mouse epiblast stem cell (EpiSC) lines comprise heterogeneous cell populations that are functionally equivalent to cells of either early- or late-stage postimplantation development. So far, the establishment of the embryonic stem cell (ESC) pluripotency gene regulatory network through the widely known chemical inhibition of MEK and GSK3beta has been impractical in late-stage EpiSCs. Here, we show that chemical inhibition of casein kinase 1alpha (CK1alpha) induces the conversion of recalcitrant late-stage EpiSCs into ESC pluripotency. CK1alpha inhibition directly results in the simultaneous activation of the WNT signaling pathway, together with inhibition of the TGFbeta/SMAD2 signaling pathway, mediating the rewiring of the gene regulatory network in favor of an ESC-like state. Our findings uncover a molecular mechanism that links CK1alpha to ESC pluripotency through the direct modulation of WNT and TGFbeta signaling.
Databáze: Directory of Open Access Journals