Oligodendrocyte precursor differentiation is perturbed in the absence of the cyclin-dependent kinase inhibitorp27Kip1

来自 NCBI

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作者：

P.，Casaccia-Bonnefil，R.，Tikoo，H.，Kiyokawa，V.，Friedrich，M.，V.

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摘要：

During development of the central nervous system, oligodendrocyte progenitor cells (O-2A) undergo an orderly pattern of cell proliferation and differentiation, culminating in the ability of oligodendrocytes to myelinate axons. Here we report that p27Kip1, a cyclin-dependent kinase inhibitor, is an important component of the decision of O-2A cells to withdraw from the cell cycle. In vitro, accumulation of p27 correlates with differentiation of oligodendrocytes. Furthermore, only a fraction of O-2A cells derived from p27-knockout mice differentiate successfully compared to controls. Inability to differentiate correlates with continued proliferation, suggesting that p27 is an important component of the machinery required for the G1/G0 transition in O-2A cells. In vivo, expansion of O-2A precursors before withdrawal, in part, leads to a greater number of oligodendrocytes. Together these data indicate a role for p27 during the decision to withdraw from the cell cycle in the oligodendrocyte lineage.

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关键词：

oligodendrocyte progenitor cells cell proliferation differentiation CKI p27(Kip1)]

DOI：

10.1101/gad.11.18.2335

被引量：

612

年份：

1997