A. Relative mRNA expression levels of SAA1-3 genes by real-time RT-PCR in the terminal ileum of IQI GF mice (GF) colonized with fecal homogenates from SFB-mono mice (SFB), Jackson B6 mice (Jackson), or a mixture of both (Jackson+SFB).
B. Splenic naïve CD4+ T cells were cocultured with or without LP CD11c+ cells in the presence of an anti-CD3 antibody with the indicated concentration of recombinant Apo-SAA for 4 days. T cells were collected, restimulated with PMA and ionomycin, and real-time RT-PCR performed. Results were normalized to expression of GAPDH mRNA. The data are representative of four independent experiments with similar results.