期刊
CANCER LETTERS
卷 247, 期 1, 页码 122-129出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.canlet.2006.03.025
关键词
prostate cancer; docetaxel; 1 alpha,25-vitamin D-3; growth inhibition; multidrug resistance proteins
类别
Pre-treatment with high-dose 1 alpha,25-dihydroxyvitamin D-3 (1,25-VD) enhanced the antitumor activity of docetaxel in the androgen-independent prostate cancer cell line, PC-3. The effect manifested as an increasing population of apoptotic cells and amount of pro-apoptotic protein, Bax, under combined treatment compared with single treatment of either 1,25-VD or docetaxel alone. We further demonstrated that pre-treatment with 1,25-VD reduced the expression of multidrug resistance-associated protein-1 at both the mRNA and protein levels. This suggests pre-treatment with 1,25-VD can potentiate cytotoxicity of docetaxel in PC-3 due to 1,25-VD reducing multidrug resistance-associated protein-1 expression. (c) 2006 Elsevier Ireland Ltd. All rights reserved.
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