DNASE1 and granulomatosis with polyangiitis: Moreover, Dnase1 staining in a biopsy of a Wegener's granulomatosis patient with severe pauci-immune glomerulonephritis was comparable to that of normal kidneys (Figure S4D), suggesting that the observed reduction in Dnase1 staining is specific for lupus nephritis, and not a general element of particular patterns of nephritis.