Histone deacetylase inhibitor BL1521 induces a G1-phase arrest in neuroblastoma cells through altered expression of cell cycle proteins

Autor: Annemieke J.M. de Ruijter, Chris van Bree, André B.P. van Kuilenburg, Huib N. Caron, Krista Ouwehand
Přispěvatelé: Cancer Center Amsterdam, Radiotherapy, Amsterdam Public Health, Paediatric Oncology, Amsterdam Gastroenterology Endocrinology Metabolism, Laboratory Genetic Metabolic Diseases
Jazyk: angličtina
Předmět:
Zdroj: FEBS letters, 579(6), 1523-1528. Wiley-Blackwell
ISSN: 0014-5793
DOI: 10.1016/j.febslet.2005.01.058
Popis: Histone deacetylase inhibitors (HDACi) have been discovered as potential drugs for cancer treatment. The effect of BL1521, a novel HDACi, on the cell cycle distribution and the induction of apoptosis was investigated in a panel of MYCN single copy and MYCN amplified neuroblastoma cell lines. BL1521 arrested neuroblastoma cells in the G1 phase and induced up to 30% apoptosis. Downregulation of CDK4, upregulation of p21(WAF1/CIP1) and an increase of hypophosphorylated retinoblastoma protein were observed, indicating a possible mechanism for the cell-cycle arrest. BL1521 also induced down-regulation of p27, which may underlie the observed induction of apoptosis. (C) 2005 Published by Elsevier B.V. on behalf of the Federation of European Biochemical Societies
Databáze: OpenAIRE