Mice were transplanted with B-cell depleted human PBMC and then received CD8-LVCD19CAR (filled circle) or PBS (open circle). As control, CD8-LVCD19CAR or PBS were injected into mice transplanted with non-depleted PBMC. Data represent mean ± SD for all groups (CD8-LVCD19CAR: n=6 in D, n=4 in G; CD8-LVRFP: n=4; PBS: n=4 in G, all others n=3). 