Bioluminescence imaging of T-cell receptor activation in TAX-LUC-DO mice. Image (A) and quantitation (B) of the bioluminescence time-course following injections, indicated by arrows in B. C) BL images taken 1 hour prior to and 7 hours after immunization. All animals were injected with CFA and OA except where indicated. The total tail tumors in each animal during the course of the experiment is enumerated at the bottom of the figure.