O'Toole, J.F.* ; Liu, Y.J.* ; Davis, E.E.* ; Westlake, C.J.* ; Attanasio, M.* ; Otto, E.A.* ; Seelow, D.* ; Nurnberg, G.* ; Becker, C.* ; Nuutinen, M.* ; Kärppa, M.* ; Ignatius, J.* ; Uusimaa, J.* ; Pakanen, S.* ; Jaakkola, E.* ; van den Heuvel, L.P.* ; Fehrenbach, H.* ; Wiggins, R.* ; Goyal, M.B.* ; Zhou, W.* ; Wolf, M.T.F.* ; Wise, E.* ; Helou, J.* ; Allen, S.J.* ; Murga-Zamalloa, C.A.* ; Ashraf, S.* ; Chaki, M.* ; Heeringa, S.* ; Chernin, G.* ; Hoskins, B.E.* ; Chaib, H.* ; Gleeson, J.* ; Kusakabe, T.* ; Suzuki, T.* ; Isaac, R.E.* ; Quarmby, L.M.* ; Tennant, B.* ; Fujioka, H.* ; Tuominen, H.* ; Hassinen, I.* ; Lohi, H.* ; van Houten, J.L.* ; Rotig, A.* ; Sayer, J.A.* ; Rolinski, B.* ; Freisinger, P.* ; Madhavan, S.M.* ; Herzer, M. ; Madignier, F. ; Prokisch, H. ; Nürnberg, P.* ; Jackson, P.K.* ; Khanna, H.* ; Katsanis, N.* ; Hildebrandt, F.*
Individuals with mutations in XPNPEP3, which encodes a mitochondrial protein, develop a nephronophthisis-like nephropathy.
J. Clin. Invest. 120, 791-802 (2010)
The autosomal recessive kidney disease nephronophthisis (NPHP) constitutes the most frequent genetic cause of terminal renal failure in the first 3 decades of life. Ten causative genes (NPHP1-NPHP9 and NPHP11), whose products localize to the primary cilia-centrosome complex, support the unifying concept that cystic kidney diseases are "ciliopathies". Using genome-wide homozygosity mapping, we report here what we believe to be a new locus (NPHP-like 1 [NPHPL1]) for an NPHP-like nephropathy. In 2 families with an NPHP-like phenotype, we detected homozygous frameshift and splice-site mutations, respectively, in the X-prolyl aminopeptidase 3 (XPNPEP3) gene. In contrast to all known NPHP proteins, XPNPEP3 localizes to mitochondria of renal cells. However, in vivo analyses also revealed a likely cilia-related function; suppression of zebrafish xpnpep3 phenocopied the developmental phenotypes of ciliopathy morphants, and this effect was rescued by human XPNPEP3 that was devoid of a mitochondrial localization signal. Consistent with a role for XPNPEP3 in ciliary function, several ciliary cystogenic proteins were found to be XPNPEP3 substrates, for which resistance to N-terminal proline cleavage resulted in attenuated protein function in vivo in zebrafish. Our data highlight an emerging link between mitochondria and ciliary dysfunction, and suggest that further understanding the enzymatic activity and substrates of XPNPEP3 will illuminate novel cystogenic pathways.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Typ der Hochschulschrift
Herausgeber
Schlagwörter
Aminopeptidases/genetics; Aminopeptidases/metabolism*; Animals; Centrosome/enzymology; Centrosome/pathology; Chromosome Mapping/methods; Cilia/enzymology; Cilia/genetics; Cilia/pathology; Family; Female; Genetic Diseases, Inborn/enzymology*; Genetic Diseases, Inborn/genetics; Genetic Diseases, Inborn/pathology; Genome-Wide Association Study/methods; Humans; Kidney/enzymology*; Kidney/pathology; Kidney Failure/enzymology*; Kidney Failure/genetics; Kidney Failure/pathology; Male; Mitochondria/enzymology*; Mit; BARDET-BIEDL-SYNDROME; PLANAR CELL POLARITY; AMINOPEPTIDASE-P; JOUBERT-SYNDROME; RETINAL DEGENERATION; CENTROSOMAL PROTEIN; RESPIRATORY-CHAIN; MECKEL-SYNDROME; DOMAIN PROTEIN; KIDNEY-DISEASE
Keywords plus
Sprache
Veröffentlichungsjahr
2010
Prepublished im Jahr
HGF-Berichtsjahr
2010
ISSN (print) / ISBN
0021-9738
e-ISSN
1558-8238
ISBN
Bandtitel
Konferenztitel
Konferzenzdatum
Konferenzort
Konferenzband
Quellenangaben
Band: 120,
Heft: 3,
Seiten: 791-802
Artikelnummer: ,
Supplement: ,
Reihe
Verlag
American Society of Clinical Investigation
Verlagsort
Tag d. mündl. Prüfung
0000-00-00
Betreuer
Gutachter
Prüfer
Topic
Hochschule
Hochschulort
Fakultät
Veröffentlichungsdatum
0000-00-00
Anmeldedatum
0000-00-00
Anmelder/Inhaber
weitere Inhaber
Anmeldeland
Priorität
Begutachtungsstatus
Peer reviewed
POF Topic(s)
30501 - Systemic Analysis of Genetic and Environmental Factors that Impact Health
Forschungsfeld(er)
Genetics and Epidemiology
PSP-Element(e)
G-500700-001
Förderungen
Copyright
Erfassungsdatum
2010-10-15