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. 2019 Dec 3;9:1358. doi: 10.3389/fonc.2019.01358

Figure 3.

Figure 3

CAR design and expression; the expansion of CART123. (A) The structure of retroviral vectors encoding anti-CD123 CARs (32). The 41BB CAR consisted of anti-CD123 scFv FMC32716, a CD8a hinge region, CD8 transmembrane and cytoplasmic regions, and a CD3ζ cytoplasmic region. tEGFR was connected with the anti-CD123 CAR via the P2A peptide in this investigation. (B) CAR expression and CD3, CD4, CD8, CD45RO, and CD62L on T cells was detected by flow cytometry. CAR expression on T cells was detected by anti-EGFR antibodies. (C) Changes in the proportion of T lymphocytes in PB after CART123 infusion. (D) Changes in CAR copies in PB after CART123 infusion by qPCR. CAR, chimeric antigen receptor; CART123, CD123-targeted CAR T cell; PB, peripheral blood; qPCR, quantitative polymerase chain reaction; EGFR, human Epidermal Growth Factor Receptor.