title: Three-Dimensional Morphology by Multiphoton Microscopy with Clearing in a Model of Cisplatin-Induced CKD.
abstract: Traditional histologic methods are limited in their ability to detect pathologic changes of CKD, of which cisplatin therapy is an important cause. In addition, poor reproducibility of available methods has limited analysis of the role of fibrosis in CKD. Highly labor-intensive serial sectioning studies have demonstrated that three-dimensional perspective can reveal useful morphologic information on cisplatin-induced CKD. By applying the new technique of multiphoton microscopy (MPM) with clearing to a new mouse model of cisplatin-induced CKD, we obtained detailed morphologic and collagen reconstructions of millimeter-thick renal sections that provided new insights into pathophysiology. Quantitative analysis revealed that a major long-term cisplatin effect is reduction in the number of cuboidal cells of the glomerular capsule, a change we term the "uncapped glomerulus lesion." Glomerulotubular disconnection was confirmed, but connection remnants between damaged tubules and atubular glomeruli were observed. Reductions in normal glomerular capsules corresponded to reductions in GFR. Mild increases in collagen were noted, but the fibrosis was not spatially correlated with atubular glomeruli. Glomerular volume and number remained unaltered with cisplatin exposure, but cortical tubulointerstitial mass decreased. In conclusion, new observations were made possible by using clearing MPM, demonstrating the utility of this technique for studies of renal disease. This technique should prove valuable for further characterizing the evolution of CKD with cisplatin therapy and of other conditions.
authors: Department of Laboratory Medicine, robert.safirstein@yale.edu richard.torres@yale.edu.
authors: Richard
authors: R
authors: Torres
authors: Department of Nephrology, Veterans Affairs Connecticut Healthcare System, West Haven, Connecticut; and Department of Internal Medicine, and.
authors: Heino
authors: H
authors: Velazquez
authors: Department of Nephrology, Veterans Affairs Connecticut Healthcare System, West Haven, Connecticut; and Department of Internal Medicine, and.
authors: John J
authors: JJ
authors: Chang
authors: Applikate Technologies, LLC, East Haven, Connecticut.
authors: Michael J
authors: MJ
authors: Levene
authors: Department of Pathology, Yale University School of Medicine, New Haven, Connecticut;
authors: Gilbert
authors: G
authors: Moeckel
authors: Department of Nephrology, Veterans Affairs Connecticut Healthcare System, West Haven, Connecticut; and Department of Internal Medicine, and.
authors: Gary V
authors: GV
authors: Desir
authors: Department of Nephrology, Veterans Affairs Connecticut Healthcare System, West Haven, Connecticut; and Department of Internal Medicine, and robert.safirstein@yale.edu richard.torres@yale.edu.
authors: Robert
authors: R
authors: Safirstein
mesh_terms: D000818:Animals; D002945:Cisplatin / Q000008:administration & dosage; D004195:Disease Models, Animal; D021621:Imaging, Three-Dimensional; D051379:Mice; D036641:Microscopy, Fluorescence, Multiphoton; D051436:Renal Insufficiency, Chronic / Q000139:chemically induced / Q000473:pathology*
chemical_list: D002945:Cisplatin
keywords: chronic renal failure; cisplatin nephrotoxicity; histopathology; pathology; renal microscopy; renal pathology