Bioluminescence in TAX-LUC mice correlates with inflammatory response. Representative data are shown from groups of 3 mice each inoculated intraperitoneally with saline, con A, CFA, poly (I:C), or LPS. A) FACS histograms for CD16lo cells (red curve) and CD16hi cells (black curve) in liver and spleen 6 hrs after treatment. B) Representative BrdU IHC results from the spleen and liver. C) Bioluminescent images obtained 2 hrs after treatment. Bar = 1 mm.