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  • Title: [Relationship between anti-tumor effects of melphalan and IFN-gamma].
    Author: Li ML, Li CG, Shu XH, Jia YJ, Qin ZH.
    Journal: Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi; 2006 Sep; 22(5):594-6. PubMed ID: 16948903.
    Abstract:
    AIM: To investigate the relationship between IFN-gamma and anti-tumor effects of melphalan in vivo. METHODS: Different gene-type mice (IFN-gamma(+/+), IFN-gamma(+/-) and IFN-gamma(-/-)), which had the same genetic background of C57BL/6, were used in this experiment. Murine lymphoma EL4 cells were inoculated subcutaneously into different gene-type mice simultaneously. Twelve days later, 7.5 mg/kg melphalan was used intraperitoneally to treat all these IFN-gamma(+/+), IFN-gamma(+/-) and IFN-gamma(-/-) tumor-bearing mice. Tumor size was observed and recorded every one to three days in these different gene-type mice subsequently. RESULTS: After melphalan (7.5 mg/kg) treatment, tumor size decreased at a similar rate in IFN-gamma(-/-), IFN-gamma(+/-) and IFN-gamma(+/+) mice within the first 3 d. Tumors shrank further or completely disappeared in most of IFN-gamma(+/-) and IFN-gamma(+/+) mice, whereas tumors grew gradually in all IFN-gamma(-/-) mice. CONCLUSION: 7.5 mg/kg melphalan has obvious anti-tumor effects on tumor-bearing IFN-gamma(+/+) and IFN-gamma(+/-) mice, but little effects on IFN-gamma(-/-) mice. These data suggest that IFN-gamma is required for the anti-tumor effects of melphalan on tumor-bearing mice in vivo.
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