Title : Flavopiridol induces G1 arrest with inhibition of cyclin-dependent kinase (CDK) 2 and CDK4 in human breast carcinoma cells.

Pub. Date : 1996 Jul 1

PMID : 8674031






14 Functional Relationships(s)
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Protein Name
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1 Flavopiridol induces G1 arrest with inhibition of cyclin-dependent kinase (CDK) 2 and CDK4 in human breast carcinoma cells. alvocidib cyclin dependent kinase 2 Homo sapiens
2 Flavopiridol induces G1 arrest with inhibition of cyclin-dependent kinase (CDK) 2 and CDK4 in human breast carcinoma cells. alvocidib cyclin dependent kinase 4 Homo sapiens
3 Flavopiridol (L86-8275), a N-methylpiperidinyl, chlorophenyl flavone, can inhibit cell cycle progression in either G1 or G2 and is a potent cyclin-dependent kinase (CDK) 1 inhibitor. alvocidib cyclin dependent kinase 1 Homo sapiens
4 Recombinant CDK4-cyclin D1 was inhibited potently by Flavopiridol (Kiapp, 65 nM), competitive with respect to ATP. alvocidib cyclin dependent kinase 4 Homo sapiens
5 Recombinant CDK4-cyclin D1 was inhibited potently by Flavopiridol (Kiapp, 65 nM), competitive with respect to ATP. alvocidib cyclin D1 Homo sapiens
6 Surprisingly, CDK4 immunoprecipitates derived from Flavopiridol-treated MCF-7 cells (3 h, 300 nM Flavonolpiridol) had an approximately 3-fold increased kinase activity compared with untreated cells. alvocidib cyclin dependent kinase 4 Homo sapiens
7 Flavopiridol inhibited the in vitro kinase activity of CDK2 using an immune complex kinase assay (IC50, 100 nM at 400 microM ATP). alvocidib cyclin dependent kinase 2 Homo sapiens
8 Immunoprecipitated CDK2 kinase activity from either MCF-7 or MDA-MB-468 cells exposed to Flavopiridol (300 nM) for increasing time showed an initial increased activity (approximately 1.5-fold at 3 h) compared with untreated cells, followed by a loss of kinase activity to immeasurable levels by 24 h. This increased immunoprecipitated kinase activity was dependent on the Flavopiridol concentration added to intact cells and was associated with a reduction of CDK2 tyrosine phosphorylation. alvocidib cyclin dependent kinase 2 Homo sapiens
9 Immunoprecipitated CDK2 kinase activity from either MCF-7 or MDA-MB-468 cells exposed to Flavopiridol (300 nM) for increasing time showed an initial increased activity (approximately 1.5-fold at 3 h) compared with untreated cells, followed by a loss of kinase activity to immeasurable levels by 24 h. This increased immunoprecipitated kinase activity was dependent on the Flavopiridol concentration added to intact cells and was associated with a reduction of CDK2 tyrosine phosphorylation. alvocidib cyclin dependent kinase 2 Homo sapiens
10 Immunoprecipitated CDK2 kinase activity from either MCF-7 or MDA-MB-468 cells exposed to Flavopiridol (300 nM) for increasing time showed an initial increased activity (approximately 1.5-fold at 3 h) compared with untreated cells, followed by a loss of kinase activity to immeasurable levels by 24 h. This increased immunoprecipitated kinase activity was dependent on the Flavopiridol concentration added to intact cells and was associated with a reduction of CDK2 tyrosine phosphorylation. alvocidib cyclin dependent kinase 2 Homo sapiens
11 Inhibition of the CDK4 and/or CDK2 kinase activity by Flavopiridol can therefore account for the G1 arrest observed after exposure to Flavopiridol. alvocidib cyclin dependent kinase 4 Homo sapiens
12 Inhibition of the CDK4 and/or CDK2 kinase activity by Flavopiridol can therefore account for the G1 arrest observed after exposure to Flavopiridol. alvocidib cyclin dependent kinase 2 Homo sapiens
13 Inhibition of the CDK4 and/or CDK2 kinase activity by Flavopiridol can therefore account for the G1 arrest observed after exposure to Flavopiridol. alvocidib cyclin dependent kinase 4 Homo sapiens
14 Inhibition of the CDK4 and/or CDK2 kinase activity by Flavopiridol can therefore account for the G1 arrest observed after exposure to Flavopiridol. alvocidib cyclin dependent kinase 2 Homo sapiens