RNA sequencing comparison of B7-H3.TMIGD2 and B7-H3.CD28.4-1BB CAR-T cells to CD19.CD28.4-1BB CAR-T cells in vitro
We generated a new B7-H3 CAR-T cell costimulatory domain using TMIGD2 and found it was as good or better than the CD28.4-1BB costimulatory domain. Little is known about TMIGD2 signaling, so we examined how each CAR signals individually compared to CD19.CD28.4-1BB control CAR-T cells. Overall design: We cocultured CAR-T cells with HCC827 tumor cells for 24 hours. We purified T cells, isolated T cell RNA, and finally performed RNA sequencing