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Urol Res. 2009 Jun;37(3):127-32. doi: 10.1007/s00240-009-0185-5. Epub 2009 Mar 13.

Primary cultures of renal proximal tubule cells derived from individuals with primary hyperoxaluria.

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Institute of Urology and Nephrology, University College London, London, UK.


The primary hyperoxalurias, PH1 and PH2, are inherited disorders caused by deficiencies of alanine:glyoxylate aminotransferase and glyoxylate reductase, respectively. Mutations in either of these enzymes leads to endogenous oxalate overproduction primarily in the liver, but most pathological effects are exhibited in the kidney ultimately leading to end-stage renal failure and systemic oxalosis. To provide a non-invasive means of accessing kidney cells from individuals with primary hyperoxaluria, we have derived primary cultures of renal proximal tubule cells from the urine of these patients. The cells stain positively for the epithelial markers pan-cytokeratin and zonula occludens 1 and the proximal tubule marker gamma-glutamyl transpeptidase. Mutation analysis confirmed that the cultured cells had the same genotype as the leucocytes of the patients and also expressed glyoxylate reductase at the mRNA level, illustrating their potential value as a source of renal material from these individuals.

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