A. CFSE-labeled donor B6 WT or AhR KO T cells were transplanted with T cell-depleted (TCD) BM cells to B6D2 recipients. 1 day and 3 days later, skin-draining LN (sLN), mesenteric LN (mLN), and spleens (Spl) were harvested and CFSE⁺ T cells were analyzed by flow cytometry. B-C. Donor WT or AhR KO T cells were transplanted with TCD BM cells. B. On day 7, B6D2 recipient mice were sacrificed and target organs were collected and homogenized. Cytokines were examined by ELISA. C. B6D2 recipient mice were observed over time for survival curve. The P-value between WT and AhR transplants survival curve was 0.0374 by Logrank test. * indicates statistically different by student t.