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Amelioration of Cisplatin-Induced Acute Renal Injury by Renal Progenitor-Like Cells Derived From the Adult Rat Kidney

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The replacement of a necrotic tubular epithelium with functional tubular epithelial cells is required for recovery from acute renal failure (ARF). A rat renal progenitor-like (rKS56) cell line was recently established derived from the S3 segment of renal proximal tubules. The therapeutic efficacy of rKS56 cells was examined in a rat model of cisplatin-induced ARF. rKS56-lacZ cells expressing -galactosidase were injected into SD rats either at the subcapsule of the left kidney (rKS-SC) or via the left renal artery (rKS-IA) 2 days after the injection of cisplatin. Bluo-gal(+) rKS56-lacZ cells were observed in the subcapsule in the rKS-SC group on day 5, and were further increased in number on day 9, accompanied by partial distribution in the corticomedullary junction, but not in the rKS-IA group. A portion of Bluo-gal(+) cells coexpressed Ki-67, aquaporin-1, hepatocyte growth factor (HGF), and c-Met. rKS-SC treatment significantly improved the tubular injury scores, ameliorated tubular cell apoptosis, and induced cell proliferation. The renal function also significantly improved in the rKS-SC group on day 5. These results demonstrate that locally implanted rKS56 cells could differentiate into tubular epithelial cells, thereby accelerating the recovery from tubular injury, most likely by producing tubular trophic factors. These results suggest the therapeutic potential of this novel approach for patients with end-stage renal failure.
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Keywords: Apoptosis; Cisplatin; Proliferation; Renal progenitor cell; Tubular epithelium

Document Type: Research Article

Affiliations: 1: Department of Medicine and Clinical Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan 2: Center for Chronic Kidney Disease and Peritoneal Dialysis, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan 3: Corneal Transplant Center, Tokyo Dental College, Chiba, Japan

Publication date: 2008-01-01

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  • Cell Transplantation publishes original, peer-reviewed research and review articles on the subject of cell transplantation and its application to human diseases. To ensure high-quality contributions from all areas of transplantation, separate section editors and editorial boards have been established. Articles deal with a wide range of topics including physiological, medical, preclinical, tissue engineering, and device-oriented aspects of transplantation of nervous system, endocrine, growth factor-secreting, bone marrow, epithelial, endothelial, and genetically engineered cells, among others. Basic clinical studies and immunological research papers are also featured. To provide complete coverage of this revolutionary field, Cell Transplantation will report on relevant technological advances, and ethical and regulatory considerations of cell transplants. Cell Transplantation is now an Open Access journal starting with volume 18 in 2009, and therefore there will be an inexpensive publication charge, which is dependent on the number of pages, in addition to the charge for color figures. This will allow work to be disseminated to a wider audience and also entitle the corresponding author to a free PDF, as well as prepublication of an unedited version of the manuscript.

    Cell Transplantation is now being published by SAGE. Please visit their website for the most recent issues.

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