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Plakoglobin is a mechanoresponsive regulator of naive pluripotency.

Accepted version
Peer-reviewed

Type

Article

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Authors

De Jonghe, Joachim 
Yanagida, Ayaka 
Herger, Michael 

Abstract

Biomechanical cues are instrumental in guiding embryonic development and cell differentiation. Understanding how these physical stimuli translate into transcriptional programs will provide insight into mechanisms underlying mammalian pre-implantation development. Here, we explore this type of regulation by exerting microenvironmental control over mouse embryonic stem cells. Microfluidic encapsulation of mouse embryonic stem cells in agarose microgels stabilizes the naive pluripotency network and specifically induces expression of Plakoglobin (Jup), a vertebrate homolog of β-catenin. Overexpression of Plakoglobin is sufficient to fully re-establish the naive pluripotency gene regulatory network under metastable pluripotency conditions, as confirmed by single-cell transcriptome profiling. Finally, we find that, in the epiblast, Plakoglobin was exclusively expressed at the blastocyst stage in human and mouse embryos - further strengthening the link between Plakoglobin and naive pluripotency in vivo. Our work reveals Plakoglobin as a mechanosensitive regulator of naive pluripotency and provides a paradigm to interrogate the effects of volumetric confinement on cell-fate transitions.

Description

Keywords

Animals, Mice, Humans, gamma Catenin, Cell Differentiation, Germ Layers, Embryonic Development, Gene Expression Profiling, Blastocyst, Mammals

Journal Title

Nat Commun

Conference Name

Journal ISSN

2041-1723
2041-1723

Volume Title

Publisher

Springer Science and Business Media LLC
Sponsorship
Wellcome Trust (108438/C/15/Z)
Wellcome Trust (108438/E/15/Z)
Biotechnology and Biological Sciences Research Council (1795140)
European Commission Horizon 2020 (H2020) ERC (695664)
European Commission Horizon 2020 (H2020) Marie Sk?odowska-Curie actions (721613)
Wellcome WT108438/C/15/Z, Studentships for KaFi (MRC), JdJ(BBSRC)
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