In vivo Drosophilia genetic model for calcium oxalate nephrolithiasis

Taku Hirata, Pablo Cabrero, Donald S. Berkholz, Daniel P. Bondeson, Erik L. Ritman, James R. Thompson, Julian A T Dow, Michael F Romero

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Nephrolithiasis is a major public health problem with a complex and varied etiology. Most stones are composed of calcium oxalate (CaOx), with dietary excess a risk factor. Because of complexity of mammalian system, the details of stone formation remain to be understood. Here we have developed a nephrolithiasis model using the genetic model Drosophila melanogaster, which has a simple, transparent kidney tubule. Drosophilia reliably develops CaOx stones upon dietary oxalate supplementation, and the nucleation and growth of microliths can be viewed in real time. The Slc26 anion transporter dPrestin (Slc26a5/6) is strongly expressed in Drosophilia kidney, and biophysical analysis shows that it is a potent oxalate transporter. When dPrestin is knocked down by RNAi in fly kidney, formation of microliths is reduced, identifying dPrestin as a key player in oxalate excretion. CaOx stone formation is an ancient conserved process across >400 My of divergent evolution (fly and human), and from this study we can conclude that the fly is a good genetic model of nephrolithiasis.

Original languageEnglish (US)
JournalAmerican Journal of Physiology - Renal Physiology
Volume303
Issue number11
DOIs
StatePublished - Dec 1 2012

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Nephrolithiasis
Calcium Oxalate
Oxalates
Genetic Models
Diptera
Kidney Tubules
Kidney
Dietary Supplements
RNA Interference
Drosophila melanogaster
Anions
Public Health
Growth
Calcium Oxalate Nephrolithiasis

Keywords

  • Cl transport
  • Gene knockdown
  • Malpighian tubules
  • Oxalate
  • Prestin;
  • Slc26

ASJC Scopus subject areas

  • Physiology
  • Urology

Cite this

In vivo Drosophilia genetic model for calcium oxalate nephrolithiasis. / Hirata, Taku; Cabrero, Pablo; Berkholz, Donald S.; Bondeson, Daniel P.; Ritman, Erik L.; Thompson, James R.; Dow, Julian A T; Romero, Michael F.

In: American Journal of Physiology - Renal Physiology, Vol. 303, No. 11, 01.12.2012.

Research output: Contribution to journalArticle

Hirata, T, Cabrero, P, Berkholz, DS, Bondeson, DP, Ritman, EL, Thompson, JR, Dow, JAT & Romero, MF 2012, 'In vivo Drosophilia genetic model for calcium oxalate nephrolithiasis', American Journal of Physiology - Renal Physiology, vol. 303, no. 11. https://doi.org/10.1152/ajprenal.00074.2012
Hirata, Taku ; Cabrero, Pablo ; Berkholz, Donald S. ; Bondeson, Daniel P. ; Ritman, Erik L. ; Thompson, James R. ; Dow, Julian A T ; Romero, Michael F. / In vivo Drosophilia genetic model for calcium oxalate nephrolithiasis. In: American Journal of Physiology - Renal Physiology. 2012 ; Vol. 303, No. 11.
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