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. 2022 Aug 8;13(8):693. doi: 10.1038/s41419-022-05138-4

Fig. 8. Specific deletion of Casp11 in neutrophils inhibited NETs formation and renal fibrosis after UUO.

Fig. 8

A Western blot showing caspase11 activation in the kidneys after UUO. Kidney tissue lysates were isolated on day 0, 2, 5, and 10 after UUO. n = 4. B Representative images of Masson trichrome staining of kidney sections from Casp11wt/wtMrp8cre and Casp11fl/flMrp8cre mice on day 13 after UUO. Scale bar: 100 μm. n = 6. C, D Representative images of immunofluorescence staining of kidney sections from Casp11wt/wtMrp8cre and Casp11fl/flMrp8cre mice, showing the expression of α-SMA C and Col I D. DAPI (blue) was used for nuclear staining. Scale bar: 100 μm. E Representative images of immunofluorescence staining of kidney sections from Casp11wt/wtMrp8cre and Casp11fl/flMrp8cre mice on day 10 after UUO, showing the expression of Histone-H3 and MPO. Scale bar: 100μm. F, G Representative images of immunofluorescence staining of Cit-H3 and MPO and quantification of neutrophils undergoing NETs formation. The neutrophils were isolated from Casp11+/+ and Casp11-/- mice and treated as described in Fig. 7A. n = 6. Scale bar: 50 μm. H Schematic model of GSDMD-dependent NETs promoting MMT and renal fibrosis in obstructive nephropathy.