in vivo and ex vivo MRI of popliteal lymph nodes (LNs) of mouse injected with dendritic cell (DC) and ferritin heavy chain-transduced DC (FTH-DC).

(A) Representative in vivo T₂*-weighted images of popliteal LNs (circle) of mouse before and at 48 h after injection of 1x10⁷ DCs and FTH-DCs. (B) Average R₂* values measured from in vivo popliteal LNs with DCs and FTH-DCs. (C) Representative ex vivo T₂*-weighted images of popliteal LNs isolated from mouse at 48 h after injection of DCs and FTH-DCs. (D) Average R₂* values measured from ex vivo popliteal LNs with DCs and FTH-DCs. All data are presented as the mean ± standard deviations of at least three independent experiments. *, p≤0.05