Journal: JCI Insight
Article Title: Role of cGAS/STING pathway in aging and sexual dimorphism in diabetic kidney disease
doi: 10.1172/jci.insight.174126
Figure Lengend Snippet: ( A ) Representative images of immunohistochemical staining of kidneys for STING in healthy and type 2 diabetic humans (left), nondiabetic (Wistar) rats, and rats with type 2 diabetic neuropathy (T2DN) (right). G, glomerulus. Scale bars: 150 μm. ( B ) Examination of CD68 and STING by immunofluorescence microscopy in diabetic human kidney. Scale bars: 50 μm (left) and 5 μm (right). ( C ) Immunohistochemical detection of CD68 in kidneys of old male Wistar and T2DN rats. Scale bar: 150 μm. ( D ) Representative 3D image from a human kidney stained for inactive and active STING molecules. Scale bar: 2 μm. ( E ) Immunohistochemical staining for mtTFA and TREX1 in renal cortical sections from healthy and diabetic human kidneys. Scale bars: 150 μm. ( F ) Western blot analysis of mtTFA and TREX1 in the kidneys of Wistar and T2DN old male rats. n = 6 rats in each group. β-Actin was used as a loading control. ( G ) Summary graphs of relative abundance for Western blots shown above. ( H and I ) Western blot analysis of the cGAS/STING pathway molecules (cGAS, STING, p-TBK1, TBK1, p-IRF3, and IRF3) in the kidneys of Wistar and T2DN old male rats. n = 6 rats in each group. Data presented as mean ± SEM. Statistical analysis was performed using unpaired, 2-tailed Student’s t test. * P < 0.05, ** P < 0.01, **** P < 0.0001. NS, nonsignificant; a.u., arbitrary units.
Article Snippet: Male Wistar rats (12 and 50 weeks, nondiabetic control) were purchased from Charles River Laboratories.
Techniques: Immunohistochemical staining, Staining, Immunofluorescence, Microscopy, Western Blot, Control