We also performed a dynamic observation of a monolayer of H522(Kat+CD19+), PC-3M(Kat+CD19+), A431(Kat+CD19+), and MDA-MD-231(Kat+C19+) cells to assess the efficacy of CAR-T cells, and showed a significant progressive decrease in the confluence of CD19+ tumor cells. Here, CD19 is linked to neoplasm.