Induced G2/M arrest and apoptosis in human epidermoid carcinoma cell lines by semisynthetic drug Ukrain
| Autor: | I N, Roublevskaia, B V, Polevoda, J W, Ludlow, A R, Haake |
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| Rok vydání: | 2000 |
| Předmět: |
G2 Phase
Keratinocytes Berberine Alkaloids Mitosis Muscle Proteins Antineoplastic Agents Apoptosis Cyclin A Cyclin B Protein Serine-Threonine Kinases Alkaloids CDC2 Protein Kinase CDC2-CDC28 Kinases Tumor Cells Cultured Humans Cyclin B1 Cells Cultured Dose-Response Relationship Drug Cell Cycle Cyclin-Dependent Kinase 2 Microfilament Proteins Cyclin-Dependent Kinases Growth Inhibitors Phenanthridines Carcinoma Squamous Cell Cell Division |
| Zdroj: | Anticancer research. 20(5A) |
| ISSN: | 0250-7005 |
| Popis: | Exposure of ME180 and A431 carcinoma cells to Ukrain (NSC-631570), a novel semisynthetic drug from Chelidonium majus L, results in cell growth inhibition which is concomitant with reversible G2/M cell cycle arrest and apoptosis at doses as low as 7 microM. In contrast, the same drug concentrations were not affective towards normal human keratinocytes. In order to investigate whether cell cycle control mechanisms are effected in response to Ukrain, we analyzed cell cycle distribution and levels of cyclins and cyclin-dependent kinases in drug treated carcinoma cells. We found alterations in levels of mitotic cyclins A and B1, and cyclin-dependent kinases CDK1 and CDK2, after treatment. We also observed an upregulation of CDK inhibitor p27 in both cancer cell lines which may lead to the G2/M cells accumulation. |
| Databáze: | OpenAIRE |
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