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Renal transfer of genetically engineered cells Kitamura MJ Am Soc Nephrol 2000[Nov]; 11 Suppl 16 (�): S154-8For many years, ex vivo gene transfer has been used for genetic manipulation of various organs. In the kidney, ex vivo gene transfer was reported using mesangial cells and macrophages. In rats, cultured cells injected into the renal artery are accumulated selectively in the glomerulus. With this approach, it is possible to transfer genetically engineered cells to normal and diseased glomeruli. The transfer of genetically engineered cells to glomeruli can be used for several purposes. With the use of resident glomerular cells engineered in vitro, it is possible to examine how the cells that overexpress certain genes behave differently in normal and diseased glomeruli. Both gain-of-function and loss-of-function strategies are useful for this purpose. For the latter, stable expression of antisense cDNA, ribosomes, or dominant-negative mutants is available. By transfer of engineered cells producing secretory, recombinant proteins, it is possible to modify glomerular microenvironment in vivo. Transfer of genes encoding therapeutically relevant molecules could be useful for therapeutic intervention. Transfer of engineered leukocytes to the glomerulus also allows investigation of cross talk between leukocytes and resident cells. Transfer of stimulated leukocytes is useful for investigation of the pathologic actions of infiltrating cells on glomerular structure and function. Leukocytes in which certain gene functions are selectively reinforced or deleted would be useful for elucidation of the exact functions of leukocyte-associated genes in glomerular diseases. This article summarizes current experience with the adoptive transfer of engineered cells to the glomerulus for investigation of and therapy for glomerular diseases.|*Cell Transplantation[MESH]|*Genetic Engineering[MESH]|Animals[MESH]|Glomerular Mesangium/cytology/physiology[MESH]|Kidney/*surgery[MESH]|Macrophages/physiology/transplantation[MESH] |