TY - JOUR
T1 - Three novel EXT1 and EXT2 gene mutations in Taiwanese patients with multiple exostoses
AU - Chen, Wen Chau
AU - Chi, Chih Hsien
AU - Chuang, Chia Chang
AU - Jou, I. Ming
N1 - Funding Information:
This study was supported by research grant NCK-UH 93-041 from National Cheng-Kung University Hospital, Tainan, Taiwan.
PY - 2006/5
Y1 - 2006/5
N2 - Multiple osteochondromatosis, also known as hereditary multiple exostoses (HME), is an inherited autosomal dominant disorder characterized by the presence of multiple exostoses on the long bones. These exostoses are benign cartilaginous tumors (enchondromata). Three different exostosis (EXT) loci on chromosomes 8q (exostosin 1, EXT1), 11p (exostosin 2, EXT2) and 19p (exostosin 3, EXT3) have been reported. Recently, the EXT1 and EXT2 genes were identified by positional cloning. Using polymerase chain reaction and direct sequencing, we analyzed the EXT1 and EXT2 genes in three familial cases and one sporadic case of HME in Taiwanese patients. We found three novel mutations (S277X in the EXT1 gene, and G194X and 939+ 1G>A in the EXT2 gene) and a known mutation (Q172X in the EXT2 gene). Mutation analysis in families with HME allows for genetic counseling and prenatal diagnosis.
AB - Multiple osteochondromatosis, also known as hereditary multiple exostoses (HME), is an inherited autosomal dominant disorder characterized by the presence of multiple exostoses on the long bones. These exostoses are benign cartilaginous tumors (enchondromata). Three different exostosis (EXT) loci on chromosomes 8q (exostosin 1, EXT1), 11p (exostosin 2, EXT2) and 19p (exostosin 3, EXT3) have been reported. Recently, the EXT1 and EXT2 genes were identified by positional cloning. Using polymerase chain reaction and direct sequencing, we analyzed the EXT1 and EXT2 genes in three familial cases and one sporadic case of HME in Taiwanese patients. We found three novel mutations (S277X in the EXT1 gene, and G194X and 939+ 1G>A in the EXT2 gene) and a known mutation (Q172X in the EXT2 gene). Mutation analysis in families with HME allows for genetic counseling and prenatal diagnosis.
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U2 - 10.1016/S0929-6646(09)60143-1
DO - 10.1016/S0929-6646(09)60143-1
M3 - Article
C2 - 16638657
AN - SCOPUS:33645902853
SN - 0929-6646
VL - 105
SP - 434
EP - 437
JO - Journal of the Formosan Medical Association
JF - Journal of the Formosan Medical Association
IS - 5
ER -