Article (Scientific journals)
Fifteen years of research on oral-facial-digital syndromes: from 1 to 16 causal genes.
Bruel, Ange-Line; Franco, Brunella; Duffourd, Yannis et al.
2017In Journal of Medical Genetics, 54 (6), p. 371-380
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Keywords :
ciliopathies; oral-facial-digital syndromes
Abstract :
[en] Oral-facial-digital syndromes (OFDS) gather rare genetic disorders characterised by facial, oral and digital abnormalities associated with a wide range of additional features (polycystic kidney disease, cerebral malformations and several others) to delineate a growing list of OFDS subtypes. The most frequent, OFD type I, is caused by a heterozygous mutation in the OFD1 gene encoding a centrosomal protein. The wide clinical heterogeneity of OFDS suggests the involvement of other ciliary genes. For 15 years, we have aimed to identify the molecular bases of OFDS. This effort has been greatly helped by the recent development of whole-exome sequencing (WES). Here, we present all our published and unpublished results for WES in 24 cases with OFDS. We identified causal variants in five new genes (C2CD3, TMEM107, INTU, KIAA0753 and IFT57) and related the clinical spectrum of four genes in other ciliopathies (C5orf42, TMEM138, TMEM231 and WDPCP) to OFDS. Mutations were also detected in two genes previously implicated in OFDS. Functional studies revealed the involvement of centriole elongation, transition zone and intraflagellar transport defects in OFDS, thus characterising three ciliary protein modules: the complex KIAA0753-FOPNL-OFD1, a regulator of centriole elongation; the Meckel-Gruber syndrome module, a major component of the transition zone; and the CPLANE complex necessary for IFT-A assembly. OFDS now appear to be a distinct subgroup of ciliopathies with wide heterogeneity, which makes the initial classification obsolete. A clinical classification restricted to the three frequent/well-delineated subtypes could be proposed, and for patients who do not fit one of these three main subtypes, a further classification could be based on the genotype.
Disciplines :
Genetics & genetic processes
Author, co-author :
Bruel, Ange-Line
Franco, Brunella
Duffourd, Yannis
Thevenon, Julien
Jego, Laurence
Lopez, Estelle
Deleuze, Jean-Francois
Doummar, Diane
Giles, Rachel H.
Johnson, Colin A.
Huynen, Martijn A.
Chevrier, Veronique
Burglen, Lydie
Morleo, Manuela
Desguerres, Isabelle
PIERQUIN, Geneviève ;  Centre Hospitalier Universitaire de Liège - CHU > Service de génétique
Doray, Berenice
Gilbert-Dussardier, Brigitte
Reversade, Bruno
Steichen-Gersdorf, Elisabeth
Baumann, Clarisse
Panigrahi, Inusha
Fargeot-Espaliat, Anne
Dieux, Anne
David, Albert
Goldenberg, Alice
Bongers, Ernie
Gaillard, Dominique
Argente, Jesus
Aral, Bernard
Gigot, Nadege
St-Onge, Judith
Birnbaum, Daniel
Phadke, Shubha R.
Cormier-Daire, Valerie
Eguether, Thibaut
Pazour, Gregory J.
Herranz-Perez, Vicente
Goldstein, Jaclyn S.
Pasquier, Laurent
Loget, Philippe
Saunier, Sophie
Megarbane, Andre
Rosnet, Olivier
Leroux, Michel R.
Wallingford, John B.
Blacque, Oliver E.
Nachury, Maxence V.
Attie-Bitach, Tania
Riviere, Jean-Baptiste
Faivre, Laurence
Thauvin-Robinet, Christel
More authors (42 more) Less
Language :
English
Title :
Fifteen years of research on oral-facial-digital syndromes: from 1 to 16 causal genes.
Publication date :
2017
Journal title :
Journal of Medical Genetics
ISSN :
0022-2593
eISSN :
1468-6244
Publisher :
BMJ Publishing Group, United Kingdom
Volume :
54
Issue :
6
Pages :
371-380
Peer reviewed :
Peer Reviewed verified by ORBi
Commentary :
(c) Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2017. All rights reserved. No commercial use is permitted unless otherwise expressly granted.
Available on ORBi :
since 15 June 2017

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