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. 2021 Aug 21;15(1):74–83. doi: 10.1038/s41385-021-00441-3

Fig. 6. Addition of soluble IL-6Rα restores the capacity of PTPN2-knockout macrophages to respond to IL-6.

Fig. 6

ac THP-1 cells expressing non-targeting control (shCtr) or PTPN2-specific (shPTPN2) shRNA were differentiated into macrophages and treated with IL-6 in combination with or without recombinant sIL-6Rα for 30 min (A) or 24 h (B + C). Depicted are a representative Western blot pictures for the indicated proteins, b mRNA expression levels of IL4A normalized to GAPDH and untreated control cells, c flow cytometry histograms for surface expression of IL-4Rα (CD124). d, e: THP-1 cells expressing non-targeting control (shCtr) or PTPN2-specific (shPTPN2) shRNA were differentiated into macrophages and treated with IL-6 in combination with recombinant sIL-6Rα for 6 h prior to stimulation with IL-4 for 30 min (D) or 24 h (e, f). The graphs show d representative Western blot images and e mRNA expression of MRC1 (encoding CD206), IL10, and TGFB normalized to GAPDH and untreated control cells. * = p < 0.05, ** = p < 0.01, *** = p < 0.001, ANOVA with Dunnett’s multiple comparisons test. Representative results from three independent experiments with 5 independent replicates (n = 5).