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INVITED REVIEW

Untraditional methods for targeting the kidney in transgenic mice

Departments of Internal Medicine and Physiology and Biophysics, University of Iowa, Iowa City, Iowa 52242

With the completion of the human genome project and the sequencing of many genomes of experimental models, there is a pressing need to determine the physiological relevance of newly identified genes. Gene-targeting approaches have become an important tool in our arsenal to dissect the significance of genes expressed in many tissues. A wealth of experimental models has been made to assess the role of gene expression in renal function and development. The development of new and informative models is presently limited by the anatomic complexity of the kidney and the lack of cell-specific promoters to target the numerous diverse cell types in that organ. Because of this, new approaches may have to be developed. In this review, we will discuss several untraditional methods to target gene expression to the kidney. These approaches should provide some additional tricks and tools to help in developing additional informative models for studying renal physiology.

kidney androgen-regulated protein promoter; P1 artificial chromosome; bacterial artificial chromosome

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