Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
2004-6-23
pubmed:abstractText
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.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1046-6673
pubmed:author
pubmed:issnType
Print
pubmed:volume
15
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1744-55
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed-meshheading:15213262-Animals, pubmed-meshheading:15213262-Body Weight, pubmed-meshheading:15213262-Cysts, pubmed-meshheading:15213262-Heterozygote, pubmed-meshheading:15213262-Homozygote, pubmed-meshheading:15213262-Image Processing, Computer-Assisted, pubmed-meshheading:15213262-Immunohistochemistry, pubmed-meshheading:15213262-Kidney, pubmed-meshheading:15213262-Kidney Diseases, pubmed-meshheading:15213262-Kidney Tubules, pubmed-meshheading:15213262-Mice, pubmed-meshheading:15213262-Mice, Transgenic, pubmed-meshheading:15213262-Microscopy, Electron, Scanning, pubmed-meshheading:15213262-Microscopy, Fluorescence, pubmed-meshheading:15213262-Mutation, pubmed-meshheading:15213262-Organ Size, pubmed-meshheading:15213262-Phenotype, pubmed-meshheading:15213262-Photons, pubmed-meshheading:15213262-Time Factors, pubmed-meshheading:15213262-Transcription Factors
pubmed:year
2004
pubmed:articleTitle
Renal cysts of inv/inv mice resemble early infantile nephronophthisis.
pubmed:affiliation
Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana 46202-5188, USA. cphilli3@iupui.edu
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't