Author： Chassin C. Bens M. Vandewalle A.
Publisher： Springer Publishing Company
ISSN： 0742-2091
Source： Cell Biology and Toxicology, Vol.23, Iss.4, 2007-07, pp. : 257-266
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Abstract
This review summarizes the strategy of cellular immortalization based on the principle of targeted oncogenesis in transgenic mice, used to establish models of transimmortalized renal proximal tubule cells, referred to as PKSV-PCT and PKSV-PR-cells, and collecting duct principal cells, referred to as mpkCCDcl4 cells. These cell lines have maintained for long-term passages the main biochemical and functional properties of the parental cells from which they were derived. Proximal tubule PKSV-PCT and PKSV-PR cells have been proved to be suitable cell systems for toxicological and pharmacological studies. They also permitted the establishment of a model of multidrug-resistant (MDR) renal epithelial tubule cells, PKSV-PRcol50, which have served for the study of both MDR-dependent extrusion of chemotherapeutic drugs and inappropriate accumulation of weak base anthracyclines in intracellular acidic organelles. The novel collecting duct cell line mpkCCDcl4, which has maintained the characteristics of tight epithelial cells, in particular Na+ absorption stimulated by aldosterone, has been extensively used for pharmacological studies related to the regulation of ion transport. These cells have permitted the identification of several aldosterone-induced proteins playing a key role in the regulation of Na+ absorption mediated by the epithelial Na+ channel ENaC. Recent studies have also provided evidence that these cell lines represent valuable cell systems for the study of host–pathogen interactions and the analysis of the role of renal tubule epithelial cells in the induction of inflammatory response caused by uropathogens that may lead to severe renal damage.
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