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. 2018 Mar 13;9:447. doi: 10.3389/fimmu.2018.00447

Figure 5.

Figure 5

Cytokine mRNA expression after S100A8/A9 or S100A8/PhosphoA9 stimulation of differentiated HL-60 (dHL-60) cells. dHL-60 cells were stimulated for 30 min, 1, 2, and 4 h with 3 μg/mL of either S100A8/A9 or S100A8/PhosphoA9. Expression of interleukin (IL)-1α (A), IL-1β (B), IL-6 (C), tumor necrosis factor alpha (TNFα) (D), CCL2 (E), CCL3 (F), CCL4 (G), and CXCL8 (H) mRNA were measured by real-time PCR. Results were normalized to three reference genes (Actin-β, B2M, and Gusβ) according to the method of Vandesompele et al. (31) and expressed as fold induction compared to the non-stimulated control (22). Results are presented as mean ± SEM of three independent experiments. *p < 0.05; **p < 0.01; ***p < 0.001; ****p < 0.0001.