These anti-CD19 CAR-T cells were incubated with CD19+ A20 B-cell lymphoma in vitro, either in the presence or absence of mCTRP9; then we evaluated target cell apoptosis, cytokine production in CAR-T cells, and cytotoxicity (Fig. 7B; Appendix Fig. S11). Here, CD19 is linked to B-cell non-Hodgkin lymphoma.