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. 2021 Feb 9;12:877. doi: 10.1038/s41467-021-20893-2

Fig. 3. FRβ+ TAMs inhibit antigen-specific T cell function.

Fig. 3

a Expression of human mesothelin (hMeso) in engineered ID8.hMeso cells as detected by flow cytometry. Representative histogram (gray–isotype, blue—hMeso) is shown. hMeso-specific mouse CAR-T cells labeled with cell trace violet (a fluorescent dye that is diluted with cell proliferation) were cocultured with ID8 or ID8.hMeso target cells in the presence of flow-sorted FRβ or FRβ+ TAMs for 72 h. b Representative histograms looking at cell trace violet staining on CAR+ T cells (gated on live, CD3+GFP+, left panel) as well as mean percentage of divided cells ± SD of triplicates (right panel) are shown. c mIFN-γ levels in 72 h supernatants as detected by ELISA. Mean of technical duplicates ± SD is shown. b, c Representative data from two independent experiments. P values by a one-way ANOVA with Tukey’s multiple comparison test are indicated. Source data are provided in the Source Data file.