Fig. 3From: CAR T cell therapy for breast cancer: harnessing the tumor milieu to drive T cell activationCombining 4/7ICR with a 2G CAR preserves T cell function even under suppressive conditions. a Serial bioluminescence imaging of eGFP-FFLuc+ MDA MB 468 cells co-cultured with 1G, 1G.4/7ICR, 2G, or 2G.4/7ICR T cells in the presence of IL4 [representative images - left, quantitative data - right (n = 6)]. b Representative dot plots and summary FACS data quantifying tumor cells and T cells after 21 days of co-culture. c Surface expression of PD-1 and TIM3 on transgenic T cells analyzed on day 21 after co-culture (representative data - left, summary data - right). d CD25 expression on 1G.4/7ICR, 2G, and 2G.4/7ICR cells on day 21 of coculture. e In vitro cytolytic function of 1G.4/7ICR, 2G, and 2G.4/7ICR cells isolated on day 21 after co-culture (mean ± SEM, n = 4–6). Significance was determined by two-way ANOVA. p < 0.05, p < 0.01, p < 0.001Back to article page