A competitive protein interaction network buffers Oct4-mediated differentiation to promote pluripotency in embryonic stem cells

Silvia Muñoz Descalzo, Pau Rué, Fernando Faunes, Penelope Hayward, Lars Martin Jakt, Tina Balayo, Jordi Garcia-Ojalvo, Alfonso Martinez Arias

Resultado de la investigación: Article

28 Citas (Scopus)

Resumen

Pluripotency in embryonic stem cells is maintained through the activity of a small set of transcription factors centred around Oct4 and Nanog, which control the expression of 'self-renewal' and 'differentiation' genes. Here, we combine single-cell quantitative immunofluorescence microscopy and gene expression analysis, together with theoretical modelling, to investigate how the activity of those factors is regulated. We uncover a key role for post-translational regulation in the maintenance of pluripotency, which complements the well-established transcriptional regulatory layer. Specifically, we find that the activity of a network of protein complexes involving Nanog, Oct4, Tcf3, and β-catenin suffices to account for the behavior of ES cells under different conditions. Our results suggest that the function of the network is to buffer the transcriptional activity of Oct4, which appears to be the main determinant to exit pluripotency. The protein network explains the mechanisms underlying the gain and loss of function in different mutants, and brings us closer to a full understanding of the molecular basis of pluripotency.

Idioma originalEnglish
Número de artículo694
PublicaciónMolecular Systems Biology
Volumen9
N.º1
DOI
EstadoPublished - 2013

Huella dactilar

Protein Interaction Maps
Stem Cells
Protein Interaction Networks
embryonic stem cells
Embryonic Stem Cells
Stem cells
Buffer
Buffers
buffers
Proteins
Catenins
Transcription factors
fluorescence microscopy
Fluorescence Microscopy
Gene expression
Microscopic examination
complement
Transcription Factors
transcription factors
proteins

ASJC Scopus subject areas

  • Medicine(all)
  • Information Systems
  • Immunology and Microbiology(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)
  • Computational Theory and Mathematics
  • Applied Mathematics

Citar esto

Muñoz Descalzo, Silvia ; Rué, Pau ; Faunes, Fernando ; Hayward, Penelope ; Jakt, Lars Martin ; Balayo, Tina ; Garcia-Ojalvo, Jordi ; Martinez Arias, Alfonso. / A competitive protein interaction network buffers Oct4-mediated differentiation to promote pluripotency in embryonic stem cells. En: Molecular Systems Biology. 2013 ; Vol. 9, N.º 1.
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abstract = "Pluripotency in embryonic stem cells is maintained through the activity of a small set of transcription factors centred around Oct4 and Nanog, which control the expression of 'self-renewal' and 'differentiation' genes. Here, we combine single-cell quantitative immunofluorescence microscopy and gene expression analysis, together with theoretical modelling, to investigate how the activity of those factors is regulated. We uncover a key role for post-translational regulation in the maintenance of pluripotency, which complements the well-established transcriptional regulatory layer. Specifically, we find that the activity of a network of protein complexes involving Nanog, Oct4, Tcf3, and β-catenin suffices to account for the behavior of ES cells under different conditions. Our results suggest that the function of the network is to buffer the transcriptional activity of Oct4, which appears to be the main determinant to exit pluripotency. The protein network explains the mechanisms underlying the gain and loss of function in different mutants, and brings us closer to a full understanding of the molecular basis of pluripotency.",
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Muñoz Descalzo, S, Rué, P, Faunes, F, Hayward, P, Jakt, LM, Balayo, T, Garcia-Ojalvo, J & Martinez Arias, A 2013, 'A competitive protein interaction network buffers Oct4-mediated differentiation to promote pluripotency in embryonic stem cells', Molecular Systems Biology, vol. 9, n.º 1, 694. https://doi.org/10.1038/msb.2013.49

A competitive protein interaction network buffers Oct4-mediated differentiation to promote pluripotency in embryonic stem cells. / Muñoz Descalzo, Silvia; Rué, Pau; Faunes, Fernando; Hayward, Penelope; Jakt, Lars Martin; Balayo, Tina; Garcia-Ojalvo, Jordi; Martinez Arias, Alfonso.

En: Molecular Systems Biology, Vol. 9, N.º 1, 694, 2013.

Resultado de la investigación: Article

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AU - Muñoz Descalzo, Silvia

AU - Rué, Pau

AU - Faunes, Fernando

AU - Hayward, Penelope

AU - Jakt, Lars Martin

AU - Balayo, Tina

AU - Garcia-Ojalvo, Jordi

AU - Martinez Arias, Alfonso

PY - 2013

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N2 - Pluripotency in embryonic stem cells is maintained through the activity of a small set of transcription factors centred around Oct4 and Nanog, which control the expression of 'self-renewal' and 'differentiation' genes. Here, we combine single-cell quantitative immunofluorescence microscopy and gene expression analysis, together with theoretical modelling, to investigate how the activity of those factors is regulated. We uncover a key role for post-translational regulation in the maintenance of pluripotency, which complements the well-established transcriptional regulatory layer. Specifically, we find that the activity of a network of protein complexes involving Nanog, Oct4, Tcf3, and β-catenin suffices to account for the behavior of ES cells under different conditions. Our results suggest that the function of the network is to buffer the transcriptional activity of Oct4, which appears to be the main determinant to exit pluripotency. The protein network explains the mechanisms underlying the gain and loss of function in different mutants, and brings us closer to a full understanding of the molecular basis of pluripotency.

AB - Pluripotency in embryonic stem cells is maintained through the activity of a small set of transcription factors centred around Oct4 and Nanog, which control the expression of 'self-renewal' and 'differentiation' genes. Here, we combine single-cell quantitative immunofluorescence microscopy and gene expression analysis, together with theoretical modelling, to investigate how the activity of those factors is regulated. We uncover a key role for post-translational regulation in the maintenance of pluripotency, which complements the well-established transcriptional regulatory layer. Specifically, we find that the activity of a network of protein complexes involving Nanog, Oct4, Tcf3, and β-catenin suffices to account for the behavior of ES cells under different conditions. Our results suggest that the function of the network is to buffer the transcriptional activity of Oct4, which appears to be the main determinant to exit pluripotency. The protein network explains the mechanisms underlying the gain and loss of function in different mutants, and brings us closer to a full understanding of the molecular basis of pluripotency.

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