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VEGF and IP10 expression in the IFN-β treated and control tumor tissues. (A) Western blot analysis shows IFN-β high dose treatment inhibited VEGF protein expression and induced IP10 protein expression in the tumor tissues. (B) RT-PCR analysis shows IFN-β induction of IP10 mRNA expression in 2 of 4 low dose group and in all of the high dose group.
