Oxygen dependence for chemosensitization by misonidazole.
Oxygen dependence for chemosensitization by misonidazole.
复制标题
米索硝唑化疗增敏的氧依赖性。
DOI:
10.1038/bjc.1986.262
复制
发表时间:
1986
影响因子:
8.8
通讯作者:
Pirro,JP
中科院分区:
文献类型:
--
作者:
Roizin-Towle,L;Hall,EJ;Pirro,JP
Misonidazole (MISO) potentiates the cell killing effect of certain chemotherapy agents, but only under hypoxic conditions. The purpose of the present study was to define the range of oxygen concentrations over which chemosensitization by MISO takes place using mammalian cells cultured in vitro, and to compare this with the oxygen levels required for radiosensitization. V-79 hamster cells, attached to permanox dishes, were gassed with known concentrations of oxygen (less than 10 to 200,000 ppm) and treated with 1 and 5 mM MISO for 4 h previous to exposure to the chemotherapy agent, melphalan. In a parallel series of experiments, under the same gassing conditions, cells were irradiated with graded doses of X-rays at various oxygen concentrations. The K factor ie the oxygen concentration which defined half the maximum effect was found to be approximately 4776 ppm for radiosensitization and approximately 400 ppm for chemosensitization by MISO. It is evident that a significantly more stringent level of hypoxia is required for chemosensitization by MISO to take place than for radiosensitization.
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DOI:
10.1016/0360-3016(84)90510-8
发表时间:
1984
期刊:
International journal of radiation oncology, biology, physics
影响因子:
--
作者:
Roizin-Towle,L;Hall,EJ;Costello,T;Biaglow,JE;Varnes,ME
通讯作者:
Varnes,ME
DOI:
--
发表时间:
1985
期刊:
Journal of the National Cancer Institute
影响因子:
--
作者:
Roizin-Towle,L
通讯作者:
Roizin-Towle,L
DOI:
10.1016/0360-3016(84)90342-0
发表时间:
1984
期刊:
International journal of radiation oncology, biology, physics
影响因子:
--
作者:
C. Koch;C. Stobbe;K. A. Baer
通讯作者:
K. A. Baer
影响因子:
3.4
作者:
Roizin-Towle,L;Biaglow,JE;Meltzer,HL;Varnes,ME
通讯作者:
Varnes,ME
影响因子:
8.8
作者:
Roizin-Towle,LA;Hall,EJ
通讯作者:
Hall,EJ