B cell deficiency reduced intragraft transcript levels of IFNγ and IL-1β. A, IFNγ transcript levels were reduced in allografts of B−/− allogeneic recipients compared to allogeneic recipients at 3 months and compared to sensitized allogeneic recipients at 3 and 6 months. P=0.0007 by 1-way ANOVA. B, IL-1β transcript levels were decreased in allografts from B−/− recipients compared to sensitized recipients at 6 months. P=0.002 by 1-way ANOVA. C and D, There were no significant differences in IL-6 or MCP transcript levels among treatment groups. Data presented as mean ± standard deviation. Data points on graph represent individual animals. *P<0.05. Syn, syngeneic; Allo, allogeneic; Sens Allo, sensitized allogeneic; B−/− Allo, B cell deficient allogeneic; NS, not significant