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          Institute: MPI für molekulare Genetik     Collection: Sequencing Group     Display Documents



  history
ID: 173903.0, MPI für molekulare Genetik / Sequencing Group
Mutations in a novel gene, NPHP3, cause adolescent nephronophthisis, tapeto-retinal degeneration and hepatic fibrosis
Authors:Olbrich, Heike; Fliegauf, Manfred; Hoefele, Julia; Kispert, Andreas; Otto, Edgar; Volz, Andreas; Wolf, Matthias T.; Sasmaz, Gürsel; Trauer, Ute; Reinhardt, Richard; Sudbrak, Ralf; Antignac, Corinne; Gretz, Norbert; Walz, Gerd; Schermer, Bernhard; Benzing, Thomas; Hildebrandt, Friedhelm; Omran, Heymut
Language:English
Date of Publication (YYYY-MM-DD):2003-08
Title of Journal:Nature Genetics
Journal Abbrev.:Nature Genet.
Volume:34
Issue / Number:4
Start Page:455
End Page:459
Copyright:© 2003 Nature Publishing Group
Review Status:not specified
Audience:Experts Only
Abstract / Description:Nephronophthisis (NPHP), a group of autosomal recessive cystic kidney disorders, is the most common genetic cause of progressive renal failure in children and young adults1. NPHP may be associated with Leber congenital amaurosis, tapeto-retinal degeneration, cerebellar ataxia, cone-shaped epiphyses, congenital oculomotor apraxia and hepatic fibrosis2-6. Loci associated with an infantile type of NPHP on 9q22–q31 (NPHP2), juvenile types of NPHP on chromosomes 2q12–q13 (NPHP1) and 1p36 (NPHP4) and an adolescent type of NPHP on 3q21–q22 (NPHP3) have been mapped7-10. NPHP1 and NPHP4 have been identified11-13, and interaction of the respective encoded proteins nephrocystin and nephrocystin-4 has been shown13. Here we report the identification of NPHP3, encoding a novel 1,330-amino acid protein that interacts with nephrocystin. We describe mutations in NPHP3 in families with isolated NPHP and in families with NPHP with associated hepatic fibrosis or tapeto-retinal degeneration. We show that the mouse ortholog Nphp3 is expressed in the node, kidney tubules, retina, respiratory epithelium, liver, biliary tract and neural tissues. In addition, we show that a homozygous missense mutation in Nphp3 is probably responsible for the polycystic kidney disease (pcy) mouse phenotype14. Interventional studies in the pcy mouse have shown beneficial effects by modification of protein intake and administration of methylprednisolone15-17, suggesting therapeutic strategies for treating individuals with NPHP3.
Comment of the Author/Creator:Date: 2003, Aug
External Publication Status:published
Document Type:Article
Version Comment:Automatic journal name synchronization
Communicated by:Richard Reinhardt
Affiliations:MPI für molekulare Genetik
External Affiliations:Univ Hosp Freiburg, Dept Pediat & Adolescent Med, D-79106 Freiburg, Germany.; Univ Michigan, Dept Pediat, Ann Arbor, MI 48109 USA.; Univ Michigan, Dept Human Genet, Ann Arbor, MI 48109 USA.; Hannover Med Sch, Inst Mol Biol, Hannover, Germany.; Max Planck Inst Mol Genet, Berlin, Germany.; Univ Paris 05, Necker Hosp, Dept Genet, Paris, France.; Univ Heidelberg, Klinikum Mannheim, Med Res Ctr, D-68167 Mannheim, Germany.; Univ Hosp Freiburg, Div Renal, D-79106 Freiburg, Germany.; Univ Hosp Freiburg, Clin Res Ctr, D-79106 Freiburg, Germany
Identifiers:ISI:000184470500026 [ID No:1]
ISSN:1061-4036 [ID No:2]
DOI:10.1038/ng1216 [ID No:3]
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