Abstract：
:Taxol-induced mitotic block and apoptosis were investigated using taxol-sensitive human leukemia HL-60 cells at submicromolar concentrations of the drug. Cells exposed to either 20 nM taxol for 1 hr or 10 nM taxol for 12 hr were able to resume normal growth, whereas cells exposed to 60 nM taxol for 1 hr or 10 nM taxol for 24 hr failed to proliferate after drug removal. Progressive changes in the percentage of mitotic block and apoptosis induced by these four treatment protocols were monitored continuously for 3-5 days after drug removal. Cells treated with 20 nM taxol for 1 hr showed a mitotic block without a subsequent increase in apoptosis, whereas cells treated with 10 nM taxol for 12 hr showed an increase in apoptotic ratio within several hours without an increase in mitotic block. These results indicate that apoptosis does not necessarily result from mitotic block and that these two phenomena can occur independently of each other. Drug sensitivity at progressive stages of the cell cycle was also investigated. The results showed that, in addition to the cells in G2/M phase, the cells in S phase were also sensitive to the drug, especially to a prolonged treatment. These results suggest that, in HL-60 cells, the apoptotic programs can be initiated in either the G2/M or S phase and represent two different cytotoxic mechanisms of taxol.
journal_name
Biochem Pharmacoljournal_title
Biochemical pharmacologyauthors
Lieu CH,Chang YN,Lai YKdoi
10.1016/s0006-2952(97)82450-1subject
Has Abstractpub_date
1997-06-01 00:00:00pages
1587-96issue
11eissn
0006-2952issn
1873-2968pii
S0006-2952(97)82450-1journal_volume
53pub_type
杂志文章abstract：:Under certain modulating conditions the liver of the male Syrian golden hamster is a target organ for the carcinogenic effect of the synthetic estrogen diethylstilbestrol (DES). As a basis for mechanistic studies aimed at elucidating the role of metabolic activation in the process of DES-induced neoplasia, the metabol...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(87)90623-x
更新日期：1987-10-01 00:00:00
abstract：:Estrogen receptor (ER), antiestrogen binding sites (AEBS) and calmodulin (CaM) are potential targets of antiestrogen (AE) action. To analyse further which of these targets are primarily involved in the antiproliferative activity of these drugs against human breast cancers, two cell clones, namely the RTx6 and LY-2 var...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(94)90500-2
更新日期：1994-11-29 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/s0006-2952(00)00487-1
更新日期：2000-12-15 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/j.bcp.2008.02.019
更新日期：2008-05-15 00:00:00
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pub_type： 杂志文章
doi：10.1016/s0006-2952(02)01072-9
更新日期：2002-07-15 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/j.bcp.2004.05.016
更新日期：2004-09-01 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章
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更新日期：1987-07-15 00:00:00
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pub_type： 杂志文章
doi：10.1016/0006-2952(82)90312-4
更新日期：1982-12-01 00:00:00
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journal_title：Biochemical pharmacology
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更新日期：1994-05-18 00:00:00
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pub_type： 杂志文章
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更新日期：2002-05-01 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章
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更新日期：1984-01-01 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(88)90282-1
更新日期：1988-08-01 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/j.bcp.2015.11.019
更新日期：2016-01-15 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(86)90159-0
更新日期：1986-04-01 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章,评审
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更新日期：1999-07-15 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(92)90123-z
更新日期：1992-09-01 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/j.bcp.2010.09.024
更新日期：2011-01-15 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/j.bcp.2010.06.027
更新日期：2010-10-15 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/j.bcp.2013.12.011
更新日期：2014-02-15 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(89)90095-6
更新日期：1989-08-01 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(94)90524-x
更新日期：1994-04-29 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(90)90242-d
更新日期：1990-11-01 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(87)90070-0
更新日期：1987-04-15 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(90)90119-6
更新日期：1990-06-01 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/s0006-2952(99)00269-5
更新日期：1999-12-01 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章,评审
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更新日期：2020-07-01 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.bcp.2011.06.005
更新日期：2011-11-15 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/s0006-2952(00)00364-6
更新日期：2000-08-15 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.bcp.2020.113819
更新日期：2020-06-01 00:00:00
abstract：:The antiinflammatory effect of superoxide dismutase was studied in rats with kidney intoxication induced by the injection of nephrotoxic serum. The urinary excretion of protein was increased significantly by the administration of an intravenous injection of nephrotoxic serum. The daily injection of superoxide dismutas...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(86)90536-8
更新日期：1986-01-15 00:00:00
