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01-12-2012 | Original Paper

Hyperoxaluric rats do not exhibit alterations in renal expression patterns of Slc26a1 (SAT1) mRNA or protein

Authors: Robert W. Freel, Marguerite Hatch

Published in: Urolithiasis | Issue 6/2012

Abstract

Little is known about oxalate transport in renal epithelia under basal conditions, let alone in hyperoxaluria when the capacity for renal oxalate excretion is increased. Sulfate anion transporter 1 (SAT1, Slc26a1) is considered to be a major basolateral anion-oxalate exchanger in the proximal tubule and we hypothesized its expression may correlate with urinary oxalate excretion. We quantified changes in the renal expression of SAT1 mRNA and protein in two rat models, one with hyperoxaluria (HYP) and one with renal insufficiency (HRF) induced by hyperoxaluria. The hyperoxaluria observed in the HYP group could not simply be ascribed to changes in SAT1 mRNA or protein abundance. However, when hyperoxaluria was accompanied by renal insufficiency, significant reductions in SAT1 mRNA and protein were detected in medullary and papillary tissue. Together, the results indicate that transcriptional modulation of the SAT1 gene is not a significant component of the hyperoxaluria observed in these rat models.

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Title: Hyperoxaluric rats do not exhibit alterations in renal expression patterns of Slc26a1 (SAT1) mRNA or protein
Authors: Robert W. Freel
Marguerite Hatch
Publication date: 01-12-2012
Publisher: Springer-Verlag
Published in: Urolithiasis / Issue 6/2012
Print ISSN: 2194-7228
Electronic ISSN: 2194-7236
DOI: https://doi.org/10.1007/s00240-012-0480-4

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Hyperoxaluric rats do not exhibit alterations in renal expression patterns of Slc26a1 (SAT1) mRNA or protein

Abstract

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Abstract

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