The gene expression profile of cyst epithelial cells in autosomal dominant polycystic kidney disease patients.
Autosomal dominant polycystic kidney disease (ADPKD) is a common genetic disorder characterized by the formation of fluid-filled cysts in the kidney and progressive renal failure. Other manifestations of ADPKD include the formation of cysts in other organs (liver, pancreas, and spleen), hypertension, cardiac defects, and cerebral aneurysms. The loss of function of the polycystin -1 and -2 results in the formation of epithelium-lined cysts, a process that depends on initial epithelial proliferation. cDNA microarrays powerfully monitor gene expression and have led to the discoveries of pathways regulating complex biological processes. We undertook to profile the gene expression patterns of epithelial cells derived from the cysts of ADPKD patients using the cDNA microarray technique. Candidate genes that were differently expressed in cyst tissues were identified. 19 genes were up-regulated, and 6 down-regulated. Semi-quantitative RT-PCR results were consistent with the microarray findings. To distinguish between normal and epithelial cells, we used the hierarchical method. The results obtained may provide a molecular basis for understanding the biological meaning of cytogenesis.
Department of Biological Science, Sookmyung Womens University, Seoul 140-742, Korea.
Jae Eun
JE
Lee
Min Ha
MH
Park
Jong Hoon
JH
Park
D002478:Cells, Cultured; D015536:Down-Regulation; D004847:Epithelial Cells / Q000378:metabolism; D015870:Gene Expression; D020869:Gene Expression Profiling; D006801:Humans; D008565:Membrane Proteins / Q000235:genetics / Q000378:metabolism; D016891:Polycystic Kidney, Autosomal Dominant / Q000235:genetics* / Q000378:metabolism; D020133:Reverse Transcriptase Polymerase Chain Reaction; D050396:TRPP Cation Channels; D015854:Up-Regulation
D008565:Membrane Proteins; D050396:TRPP Cation Channels