Comparison of CIK cells trafficking between major- and minor-mismatched recipients. Balb/c (H-2^d, major mismatch, n = 5) and Balb/b (H-2^b, minor mismatch, n = 5) recipients were lethally irradiated, and then injected with 5 × 10⁶ C57BL/6 (H-2^b) wild-type BM with 10 × 10⁶ CIK cells generated from B6-L2G85 (H-2^b) luc⁺ mice. (A) CIK subpopulations. (B) BLI images and (C) quantitative analysis of BLI over time. (D) Percent body weight change over time. Error bars represent SD.