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Fig. 3. Immunohistochemical localization of Nek8. Confocal
immunofluorescence microscopy using affinity-purified anti-Nek8
revealed strong expression in the apical cytoplasm of two-week-old wild-type
inner medullary collecting duct cells (A) shown in cross-section. Similar
sections from jck-/- kidneys (B) show diffuse cytoplasmic
Nek8 staining, often appearing as a perinuclear ring. Wild-type
cortical collecting ducts also showed strong apical expression of
Nek8 (C), while cystic collecting duct epithelia in
jck-/- tissue (D) show a diffuse pattern of cytoplasmic
expression.