TLR mRNA expression in T cells. (A) Expression of TLR mRNA in Jurkat cells. Total RNA was extracted from Jurkat cells and used for RT-PCR. (B) CD4+ T cells were infected without or with Corby (MOI of 50) for 3 h. Total RNA was extracted from CD4+ T cells and used for RT-PCR. Representative examples of three experiments with similar results.