Fig. 2. Secondary NETosis in nanowells.
a Schematic of the secondary NETosis assay in nanowells where naïve cells were incubated with cells pre-stimulated with ionomycin (6 µM) in clean media. The secondary NETosis was quantified by the measurement of NETs release in naïve cells: The NETs release was evaluated by Hoechst staining of naïve cells and measured as the percentage of cells undergoing NETosis. NETs release by (b) dHL-60 cells and (c) primary neutrophils after co-incubating with ionomycin-stimulated cells at varying cell densities. d Secondary NETosis in primary neutrophils after different treatments on stimulated cells: stimulated cells (no treatment), cell-free NETs isolation, ODA-A151 treatment, DNase I treatment, Proteinase K treatment. All statistical analyses were carried out using one-way ANOVA with Tukey’s post-hoc test *p < 0.05; **p < 0.01; ***p < 0.001. All the values shown were averaged from three individual experiments. Error bars represent standard deviation.
