Author: Wuyts W.
Publisher: Oxford University Press
ISSN: 1460-2083
Source: Human Molecular Genetics, Vol.11, Iss.22, 2002-10, pp. : 2735-2739
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
Paget's disease of bone (PDB) is a common disorder characterized by focal abnormalities of increased and disorganized bone turnover. Genetic factors are important in the pathogenesis of PDB, and in previous studies, we and others identified a locus for familial PDB by genome-wide search on 5q35-qter (PDB3). The gene encoding sequestosome 1 (SQSTM1/p62) maps to within the PDB3 critical region, and recent studies have identified a proline–leucine amino acid change at codon 392 of SQSTM1 (P392L) in French-Canadian patients with PDB. We conducted mutation screening of positional candidate genes in the PDB3 locus in patients with PDB, and also identified mutations in the gene encoding SQSTM1 as a common cause of familial and sporadic PDB. Three different mutations were found, all affecting the highly conserved ubiquitin-binding domain. The most common mutation was the P392L change in exon 8, which was found in 13 of 68 families (19.1%). Another mutation—a T insertion that introduces a stop codon at position 396 in exon 8—was found in four (5.8%) families. A third mutation affecting the splice donor site in intron 7 was found in one (1.5%) family. The P392L mutation was also found in 15 of 168 (8.9%) of patients with sporadic PDB and 0 of 160 of age- and sex-matched controls (P<0.0001). these="" studies="" confirm="" that="" mutations="" affecting="" the="" ubiquitin-binding="" domain="" of="">SQSTM1 are a common cause of familial and sporadic Paget's disease of bone.
Related content
By Daroszewska Anna van 't Hof Robert J. Rojas Javier A. Layfield Robert Landao-Basonga Euphemie Rose Lorraine Rose Ken Ralston Stuart H.
Human Molecular Genetics, Vol. 20, Iss. 14, 2011-07 ,pp. :
By Hiruma Yuko Kurihara Noriyoshi Subler Mark A. Zhou Hua Boykin Christina S. Zhang Heju Ishizuka Seiichi Dempster David W. Roodman G. David Windle Jolene J.
Human Molecular Genetics, Vol. 17, Iss. 23, 2008-12 ,pp. :