A recurrent mutation in type II collagen gene causes Legg-Calvé-Perthes disease in a Japanese family.
Legg-Calvé-Perthes disease (LCPD) is a common childhood hip disorder characterized by sequential stages of involvement of the capital femoral epiphyses, including subchondral fracture, fragmentation, re-ossification and healing with residual deformity. Most cases are sporadic, but familial cases have been described, with some families having multiple affected members. Genetic factors have been implicated in the etiology of LCPD, but the causal gene has not been identified. We have located a missense mutation (p.G1170S) in the type II collagen gene (COL2A1) in a Japanese family with an autosomal dominant hip disorder manifesting as LCPD and showing considerable intra-familial phenotypic variation. This is the first report of a mutation in hereditary LCPD. COL2A1 mutations may be more common in LCPD patients than currently thought, particularly in familial and/or bilateral cases.
Miyamoto
Yoshinari
Y
Laboratory for Bone and Joint Diseases, SNP Research Center, RIKEN, 4-6-1 Shirokanedai, Minato-ku, Tokyo 108-8639, Japan.
Matsuda
Tatsuo
T
Kitoh
Hiroshi
H
Haga
Nobuhiko
N
Ohashi
Hirofumi
H
Nishimura
Gen
G
Ikegawa
Shiro
S
D000293:Adolescent; D044466:Asian People / Q000235:genetics*; D024043:Collagen Type II / Q000235:genetics*; D005260:Female; D006801:Humans; D007873:Legg-Calve-Perthes Disease / Q000235:genetics*; D008297:Male; D009154:Mutation; D010375:Pedigree
D024043:Collagen Type II