Expression of mRNA for MIP-1α at day 6 after transfer of either MIP-1α^−/− or wild-type splenocytes.

Expression of MIP-1α was evaluated as given previously after transfer of splenocytes from C57BL/6 or MIP-1α^−/− B6 donors into bm1 recipients. The bm1 mice were killed on day 6 after the transfer, and RNA was isolated and quantitated as described. We evaluated 3 mice per condition, and the data were pooled from 2 separate experiments. P values were analyzed using the Student t test. *P < .001, which compares the difference of MIP-1α^−/− and MIP-1α^+/+ splenocytes in class I and class II.