Validation Data
Figure 1. Detection of CD19 expression in peripheral blood and spleen cells of humanized CD19 mice. The FACS results of blood and spleen cells collected from homozygous humanized CD19 mice and wild-type mice showed that the active expression of humanized CD19 was detected in live cells collected from homozygous humanized CD19 mice, and its expression level was similar to that of murine Cd19 expression in wild-type mice.