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Synergistic chemical radiosensitization of hypoxic mammalian cells

Journal Article · · Int. J. Radiat. Oncol., Biol. Phys.; (United States)
A combination of two compounds, diamide and nifuroxime, which sensitize hypoxic mammalian cells to x-radiation by different mechanisms, was tested for sensitizing ability in vitro. Concentrations of these agents that did not sensitize hypoxic V79 Chinese hamster cells in vitro when the compounds were present separately during irradiation were extremely effective in reducing survival when they were present together. This result indicates that the combination of diamide plus nifuroxime sensitizes synergistically and suggests that radiosensitization of hypoxic tumor cells in vivo may be possible with much lower drug concentrations than presently required for single agents.
Research Organization:
Univ. of California, San Francisco
OSTI ID:
7118374
Journal Information:
Int. J. Radiat. Oncol., Biol. Phys.; (United States), Journal Name: Int. J. Radiat. Oncol., Biol. Phys.; (United States) Vol. 1:5-6; ISSN IOBPD
Country of Publication:
United States
Language:
English