Journal: Frontiers in Immunology
Article Title: IFNγ-induced antigen loss in chimeric antigen receptor-T cell therapy
doi: 10.3389/fimmu.2026.1772472
Figure Lengend Snippet: GucyCART induces GUCY2C loss in multiple low antigen models. (A) LS174T, SKCO1, and LoVo CRC cells were exposed to GucyCART for 48 hours. (B) Cytolysis kinetics were quantified over the 48 hour co-culture. AUCs were calculated for each condition, and one-way ANOVA was used to compare GucyCART and control CART at each E:T ratio. Each data point in (B) represents the mean ± SD from n ≥ 3 technical replicates in a single experiment that is representative of 3–5 experiments; **** p < 0.0001. (C, D) Following 48 hours of cytolysis, remaining cells were collected, and GUCY2C mRNA (C) and protein (D) were quantified relative to the epithelia-specific housekeeping control EPCAM. Each data point represents the average of biological replicates in separate experiments (N = 3–5 experiments). One-way ANOVA was used to compare each E:T of GucyCART to control CART; ** p < 0.01, *** p < 0.0001. Figure schematics were generated using BioRender.com .
Article Snippet: Membranes were probed using an anti-human GUCY2C antibody (37517, Cell Signaling Technology), anti-human GAPDH (2118S, Cell Signaling Technology), anti-human STAT1 (14994T, Cell Signaling Technology), anti-human phospho-STAT1 (9167S, Cell Signaling Technology), anti-human CHOP (2895S, Cell Signaling Technology), anti-human β-actin (2128S, Cell Signaling Technology), anti-human EpCAM (2929S, Cell Signaling Technology) anti-human CDH17 (88594T, Cell Signaling Technology), and anti-human HER2 (2165T, Cell Signaling Technology).
Techniques: Co-Culture Assay, Control, Generated