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The antimetabolite 5-fluorouracil (5-FU) is one of the more prominent clinical antitumor agents available for the treatment of stomach and colorectal cancers. In the present study, we characterized the effects of 5-FU on nitric oxide (NO) production by cells from the stomach cancer cell line NCI-N87. A cytokine mixture [interleukin (IL)-1β/interferon (IFN)-γ] increased the production of NO by stomach...
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