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Wnt/β-catenin signaling promotes self-renewal and inhibits the primed state transition in naïve human embryonic stem cells
- Source :
- Proceedings of the National Academy of Sciences. 113
- Publication Year :
- 2016
- Publisher :
- Proceedings of the National Academy of Sciences, 2016.
-
Abstract
- In both mice and humans, pluripotent stem cells (PSCs) exist in at least two distinct states of pluripotency, known as the naïve and primed states. Our understanding of the intrinsic and extrinsic factors that enable PSCs to self-renew and to transition between different pluripotent states is important for understanding early development. In mouse embryonic stem cells (mESCs), Wnt proteins stimulate mESC self-renewal and support the naïve state. In human embryonic stem cells (hESCs), Wnt/β-catenin signaling is active in naïve-state hESCs and is reduced or absent in primed-state hESCs. However, the role of Wnt/β-catenin signaling in naïve hESCs remains largely unknown. Here, we demonstrate that inhibition of the secretion of Wnts or inhibition of the stabilization of β-catenin in naïve hESCs reduces cell proliferation and colony formation. Moreover, we show that addition of recombinant Wnt3a partially rescues cell proliferation in naïve hESCs caused by inhibition of Wnt secretion. Notably, inhibition of Wnt/β-catenin signaling in naïve hESCs did not cause differentiation. Instead, it induced primed hESC-like proteomic and metabolic profiles. Thus, our results suggest that naïve hESCs secrete Wnts that activate autocrine or paracrine Wnt/β-catenin signaling to promote efficient self-renewal and inhibit the transition to the primed state.
- Subjects :
- Proteomics
0301 basic medicine
Human Embryonic Stem Cells
Fluorescent Antibody Technique
Apoptosis
Biology
Models, Biological
Colony-Forming Units Assay
03 medical and health sciences
Paracrine signalling
Humans
Secretion
Benzothiazoles
Cell Self Renewal
RNA, Small Interfering
Induced pluripotent stem cell
Autocrine signalling
Wnt Signaling Pathway
reproductive and urinary physiology
Cell Proliferation
Multidisciplinary
Cell growth
Gene Expression Profiling
Cell Cycle
Wnt signaling pathway
Gene Expression Regulation, Developmental
Cell Differentiation
Flow Cytometry
equipment and supplies
Embryonic stem cell
Cell biology
030104 developmental biology
PNAS Plus
embryonic structures
Immunology
biological phenomena, cell phenomena, and immunity
Heterocyclic Compounds, 3-Ring
Biomarkers
WNT3A
Subjects
Details
- ISSN :
- 10916490 and 00278424
- Volume :
- 113
- Database :
- OpenAIRE
- Journal :
- Proceedings of the National Academy of Sciences
- Accession number :
- edsair.doi.dedup.....e8def680d6e817d8f558de8095c4bbbe