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. 2021 Jul 27;12:4546. doi: 10.1038/s41467-021-24784-4

Fig. 9. WNK4 knockout does not increase NLRP3 inflammasome activation in vitro or in vivo.

Fig. 9

IL-1β (a) and LDH (b) release of culture supernatant of LPS-primed (4 h) primary Wnk1flox/flox LysMCre+ (WNK1 KO) and Wnk1flox/flox LysMCre+ Wnk4−/− BMDMs (WNK1/4/ DKO) treated with ATP, dAdT transfection, imiquimod, MSU, and nigericin as indicated. P values in a are 0.3684, 0.1465, 0.5583, 0.0642, 0.1596, and 0.2239; b are 0.8798, 0.3554, 0.0879, 0.1037, 0.8199, and 0.2771. c Immunoblots of caspase-1 p20 released in culture supernatants (Sup) and procaspase-1 in cell lysates (Lys) of LPS-primed (4 h) primary Wnk1flox/flox LysMCre+ (WNK1 KO) and Wnk1flox/flox LysMCre+ Wnk4−/− BMDMs (WNK1/4/ DKO) treated with ATP, dAdT transfection, imiquimod, MSU, and nigericin as indicated. Percentage of neutrophils (d), number of infiltrating neutrophils (e), and IL-1β release (f) were measured from peritoneal exudate of Wnk1flox/flox LysMCre+ (WNK1 KO) and Wnk1flox/flox LysMCre+ Wnk4−/− BMDMs (WNK1/4/ DKO) mice injected with 1 mg MSU for 6 h; n = 8 mice per group. n = 8 mice per group. P value d is 0.5569, e is 0.5483, and f is 0.4089. 3 mice per experiment were injected with PBS as a negative control. Error bars in a, b, df are presented as mean values ± standard deviation (S.D.), with n = 3. Two-sided Student’s t test, n.s. not significant.