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Journée Nationale des Neurosciences

Published on February 22, 2010


Campagne de sensibilisation grand public sur la place Antonin Poncet Samedi 13 Mars
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 Teams 

Embryonic Stem Cells: Self-renewal and Early Commitment

 

Our team examines the mechanisms of self-renewal and pluripotency in mouse and human embryonic stem cells. We aim to identify novel genes involved in the maintenance of the undifferentiated state and in the early commitment towards ectoderm, mesoderm and endoderm. Another aspect of our work focuses on the regulation of the cell cycle, which shows unusual characteristics both in mouse and primate ES cells. We study the role of regulators of the G1- to S-phase transition in the maintenance of the undifferentiated state. In collaboration with the Institute of Zoology in Beijing and Kunming, we develop technologies to create transgenic non-human primates.

Pierre Savatier

Our team examines the mechanisms of self-renewal and pluripotency in mouse and human embryonic stem cells. We aim to identify novel genes involved in the maintenance of the undifferentiated state and in the early commitment towards ectoderm, mesoderm and endoderm. Another aspect of our work focuses on the regulation of the cell cycle, which shows unusual characteristics both in mouse and primate ES cells. We study the role of regulators of the G1- to S-phase transition in the maintenance ...

Agnieszka Bernat-Wojtowski

Deriving iPS cells in the rhesus monkey and guiding their differentiation into dopaminergic precursors prior to grafting into MPTP monkeys. Producing transgenic monkeys using Simian Immunodeficiency Virus-based vectors.


Pierre-Yves Bourillot

Investigating the mechanisms of STAT3-dependant self-renewal, the hallmark of mouse ES cells, and understanding why this pathway does not operate in primate, human and non human ES cells.


Hongwei Chen

Research interests:

Transgenesis in the rhesus monkey

 


Diana Coronado PhD Student

Investigating the function of cyclin E and cycin E-associated kinase activity in self-renewal and pluripotency in mouse and human ES cells


Virginie Dolmazon PhD Student

Investigating the role of transcription factors Lmx1a and Lmx1b in the differentiation of mouse and rhesus ES/iPS cells toward dopaminergic and serotonergic fates.


Emeline Fontaine

Deriving human ES cell lines from surnumerary human embryos. In charge of quality control and follow-up of research activities on human ES cells in accordance with current legislation.


Vincent Giudice

Investigating the function of novel STAT3 target genes in the maintenance of mouse and human ES cells in the undifferentiated state


Pierre-Marie Gourmoud

Cloning novel STAT3 target genes


Magali Mure

Selected Publications of Team members :
Wianny F, Bernat A, Huissoud C, Marcy G, Markossian S, Cortay V, Giroud P, Leviel V, Kennedy H, Savatier P, Dehay C (2008) Derivation and cloning of a Novel Rhesus ES cell line stably expressing Tau-GFP Stem Cells 26(6):1444-53 download
Aksoy I, Sakabedoyan C, Bourillot PY, Malashicheva AB, Mancip J, Knoblauch K, Afanassieff M, Savatier P (2007) Self-renewal of murine embryonic stem cells is supported by the serine/threonine kinases pim-1 and pim-3. Stem Cells 25(12):2996-3004 download
Fluckiger AC, Marcy G, Marchand M, Negre D, Cosset FL, Mitalipov S, Wolf D, Savatier P, Dehay C (2006) Cell cycle features of Primate Embryonic Stem Cells Stem Cells 24(3):547-556 download
Lukaszewicz A, Savatier P, Cortay V, Giroud P, Huissoud C, Berland M, Kennedy H, Dehay C (2005) G1 phase regulation, Area-Specific cell cycle control, and Cytoarchitectonics in the Primate Cortex Neuron 47 (3):353-64 download
Jirmanova L, Afanassieff M, Gobert-Gosse S, Markossian S, Savatier P (2002) Differential contributions of ERK and PI3-kinase to the regulation of cyclin D1 expression and to the control of the G1/S transition in mouse embryonic stem cells. Oncogene 21:5515-28 download
Burdon T, Smith AG, Savatier P (2002) Signalling, cell cycle and pluripotency in embryonic stem cells. Trends Cell Biol 12:432-8 download
Bourillot PY, Garrett N, Gurdon JB (2002) A changing morphogen gradient is interpreted by continuous transduction flow. Development 129:2167-2180. download
Vallier L, Mancip J, Markossian S, Lukaszewicz A, Dehay C, Metzger D, Chambon P, Samarut J, Savatier P (2001) An efficient system for conditional gene expression in embryonic stem cells and their in vitro and in vivo differentiated derivatives. Proc Nat Acad Sci USA 98:2467-2472 download
Gurdon JB, Bourillot PY (2001) Morphogen gradient interpretation. Nature 413:797-803. download
Savatier P, Lapillonne H, van Grunsven LA, Rudkin BB, Samarut J (1996) Withdrawal of differentiation inhibitory activity/leukemia inhibitory factor up-regulates D-type cyclins and cyclin-dependent kinase inhibitors in mouse embryonic stem cells. Oncogene 12:309-322 download
Fraichard A, Chassande O, Bilbault G, Dehay C, Savatier P, Samarut J (1995) In vitro differentiation of ES cells into glial cells and functional neurons. J Cell Sci 108:3181-8 download