Burdon, Tom

Savatier, Pierre

Smith, Austin

English

Burdon, T.

Smith, A.

HAL-ENS-LYON

Signalling, cell cycle and pluripotency in embryonic stem cells

Pluripotent mouse embryonic stem (ES) cells can be expanded in large numbers in vitro owing to a process of symmetrical self-renewal. Self-renewal entails proliferation with a concomitant suppression of differentiation. Here we describe how the cytokine leukaemia inhibitory factor (LIF) sustains self-renewal through activation of the transcription factor STAT3, and how two other signals - extracellular-signal-related kinase (ERK) and phosphatidylinositol-3-OH kinase (PI3K) - can influence differentiation and propagation, respectively. We relate these observations to the unusual cell-cycle properties of ES cells and speculate on the role of the cell cycle in maintaining pluripotency

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Signalling, cell cycle and pluripotency in embryonic stem cells

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