Renal cysts of inv/inv mice resemble early infantile nephronophthisis

Carrie Phillips, Karen J. Miller, Adele J. Filson, Jens Nürnberger, Jeffrey L. Clendenon, Gregory W. Cook, Kenneth Dunn, Paul A. Overbeek, Vincent H. Gattone, Robert Bacallao

Research output: Contribution to journalArticle

55 Citations (Scopus)

Abstract

Cystic kidney disease has been linked to mutations in the Invs gene in mice with inversion of embryonic turning (inv/inv) and the INVS (NPHP2) gene in infants with nephronophthisis type 2 (NPHP2). The inv mouse model features multiorgan defects including renal cysts, altered left-right laterality, and hepatobiliary duct malformations transmitted in an autosomal recessive manner. Affected mice usually die of renal and liver failure by postnatal day 7. Although cardiopulmonary and liver anomalies have been carefully detailed, renal cysts have yet to be fully characterized in inv/inv. By use of three-dimensional visualization by two-photon microscopy, this study provides the first comprehensive analysis of in situ cyst formation and progression in inv/inv kidneys. At embryonic day 15, there is dilatation of Bowman's capsule followed temporally by corticomedullary cysts involving collecting ducts, proximal tubules, and thick ascending limbs. Collecting ducts of newborn inv/inv mice are uniformly and diffusely cystic from medulla to cortex, with normal diameters found only at their most proximal tips. Proximal tubules form fusiform cysts that alternate with segments of normal or narrowed caliber along torturous convolutions. Because defective cilia have been linked to situs inversus and cystogenesis, we examined inv/inv cilia by scanning and transmission electron microscopy. The former detected monocilia of expected length in cystic collecting ducts and proximal tubules; the latter demonstrated the usual 9 + 2 pattern in respiratory cilia. The inv mutant mouse has renal cysts resembling infantile NPHP2 and will provide broader insight into the role cilia play in renal cystogenesis.

Original languageEnglish
Pages (from-to)1744-1755
Number of pages12
JournalJournal of the American Society of Nephrology
Volume15
Issue number7
DOIs
StatePublished - Jul 2004

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Cysts
Cilia
Kidney
Bowman Capsule
Cystic Kidney Diseases
Situs Inversus
Cystic Duct
Scanning Transmission Electron Microscopy
Liver Failure
Photons
Genes
Renal Insufficiency
Nephronophthisis 2
Dilatation
Microscopy
Extremities
Newborn Infant
Mutation
Liver

ASJC Scopus subject areas

  • Nephrology

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Renal cysts of inv/inv mice resemble early infantile nephronophthisis. / Phillips, Carrie; Miller, Karen J.; Filson, Adele J.; Nürnberger, Jens; Clendenon, Jeffrey L.; Cook, Gregory W.; Dunn, Kenneth; Overbeek, Paul A.; Gattone, Vincent H.; Bacallao, Robert.

In: Journal of the American Society of Nephrology, Vol. 15, No. 7, 07.2004, p. 1744-1755.

Research output: Contribution to journalArticle

Phillips, C, Miller, KJ, Filson, AJ, Nürnberger, J, Clendenon, JL, Cook, GW, Dunn, K, Overbeek, PA, Gattone, VH & Bacallao, R 2004, 'Renal cysts of inv/inv mice resemble early infantile nephronophthisis', Journal of the American Society of Nephrology, vol. 15, no. 7, pp. 1744-1755. https://doi.org/10.1097/01.ASN.0000131520.07008.B3
Phillips, Carrie ; Miller, Karen J. ; Filson, Adele J. ; Nürnberger, Jens ; Clendenon, Jeffrey L. ; Cook, Gregory W. ; Dunn, Kenneth ; Overbeek, Paul A. ; Gattone, Vincent H. ; Bacallao, Robert. / Renal cysts of inv/inv mice resemble early infantile nephronophthisis. In: Journal of the American Society of Nephrology. 2004 ; Vol. 15, No. 7. pp. 1744-1755.
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