Figure 3

mRNA transcripts constantly expressed over the course of 7 days by microarray and reverse transcription-polymerase chain reaction (RT-PCR). Signal intensity (SI) ratios of microarray (open bars) and gene expression levels as measured by quantitative real-time RT-PCR (hashed bars) of three mRNA transcripts encoding for macrophage inflammatory protein (MIP)-1-α, MIP-1-β, and interleukin-2 receptor-gamma (IL-2R-γ) expressed at 7 days post-infection (7 d pi). For both experiments, Chlamydia trachomatis-infected monocytes were used and compared with their mock-infected probes.