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A, CD8+ T cell depletion treatment was initiated on day 3 and performed twice a week. NK cell depletion treatment was initiated 24 hours before Renca implantation and repeated on days 2, 4, 6 and 13 using anti-asGM1 antibody. B, Macrophages were depleted using i.v. injection of clodronate liposomes on day -1, 2, 6, 10, 14. PBS-containing liposomes were used as a control. Liver tumor nodules were counted on day 17.
