Title : Inhibition of p34cdc2 kinase activation, p34cdc2 tyrosine dephosphorylation, and mitotic progression in Chinese hamster ovary cells exposed to etoposide.

Pub. Date : 1992 Apr 1

PMID : 1551112






6 Functional Relationships(s)
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1 Inhibition of p34cdc2 kinase activation, p34cdc2 tyrosine dephosphorylation, and mitotic progression in Chinese hamster ovary cells exposed to etoposide. Etoposide cyclin dependent kinase 1 Homo sapiens
2 Inhibition of p34cdc2 kinase activation, p34cdc2 tyrosine dephosphorylation, and mitotic progression in Chinese hamster ovary cells exposed to etoposide. Etoposide cyclin dependent kinase 1 Homo sapiens
3 p34cdc2 kinase, an enzyme essential for mitosis in mammalian cells, may play a role in etoposide-induced G2 phase arrest of Chinese hamster ovary cells. Etoposide cyclin dependent kinase 1 Homo sapiens
4 In this study, etoposide is shown to cause inhibition of a specific p34cdc2 kinase activation pathway, that of tyrosine dephosphorylation. Etoposide cyclin dependent kinase 1 Homo sapiens
5 Exposure of asynchronously dividing cells to etoposide caused a simultaneous rapid decline of both mitotic index and p34cdc2 kinase activity, suggesting that the kinase was not activated and that the arrest point was in late G2 phase. Etoposide cyclin dependent kinase 1 Homo sapiens
6 A 1-h exposure to etoposide during early G2 phase inhibited p34cdc2 kinase activation, its shift in electrophoretic mobility, and its tyrosine dephosphorylation, all of which correlated with a delay in mitotic progression. Etoposide cyclin dependent kinase 1 Homo sapiens