MHC class II antigen presentation by donor cDCs is not critical for Teff function in cGVHD. (A) Lethally irradiated B6D2F1 recipients were transplanted with 5 × 10⁶ TCD BM cells from CD11c Cre^neg or I-A^b CD11c Cre^pos donor mice with 0.5 × 10⁶ CD3⁺ T cells from B6.luc⁺ mice previously depleted in Tregs with the administration of the antibody PC61. (B) Representative images of the B6.luc⁺ CD3⁺ T cells are represented in the whole mice at day 23 after BMT. The BLI (ph s⁻¹ cm⁻² sr⁻¹) is represented and followed over time every week after BMT (n = 14-15, 3 experiments).