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

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Abstract

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 p21WAF1/CIP1 and an increase of hypophosphorylated retinoblastoma protein were observed, indicating a possible mechanism for the cell-cycle arrest. BL1521 also induced downregulation of p27, which may underlie the observed induction of apoptosis. © 2005 Published by Elsevier B.V. on behalf of the Federation of European Biochemical Societies.

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Ouwehand, K., De Ruijter, A. J. M., Van Bree, C., Caron, H. N., & Van Kuilenburg, A. B. P. (2005). Histone deacetylase inhibitor BL1521 induces a G1-phase arrest in neuroblastoma cells through altered expression of cell cycle proteins. FEBS Letters, 579(6), 1523–1528. https://doi.org/10.1016/j.febslet.2005.01.058

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