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. 2017 Jun 13;7:3409. doi: 10.1038/s41598-017-03257-z

Figure 5.

Figure 5

JNK inhibition by TCSJNK6o suppresses LPS-mediated NETosis. (A–C) NETosis kinetics was assessed by Sytox Green plate reader assay after activation with 25 nM PMA and 25 μg/ml LPS in the presence or absence of TCSJNK6o. As shown in the %DNA release analysis, TCSJNK6o (TCS; 5, 10, 20 μM) suppresses LPS mediated NETosis, while not in PMA mediated NETosis (n = 3–4; *p value < 0.05; Two-way ANOVA with Bonferroni’s post test conducted at each time point). Error bars in all the panels represent SEM. (D) Neutrophils were activated by PMA and LPS with and without TCSJNK6o for 4 hours, immunostained, and imaged for myeloperoxidase (MPO) and DNA. MPO is visible around the nuclei in media control with or without TCSJNK6o. MPO co-localizes to NET DNA generated by LPS, PMA, and PMA with TCSJNK6o. Treating neutrophils with LPS in the presence of TCSJNK6o does not result in NETosis, and the nuclear morphology of these cells remains the same as that of the unstimulated control neutrophils (Blue, DAPI staining for DNA; Red, MPO; n = 3; scale bar 20 μm). See Supplementary Fig. S5 for low magnification images.