TY - JOUR
T1 - A comparative study of fibrous dysplasia and osteofibrous dysplasia with regard to GSα mutation at the Arg201 codon
T2 - Polymerase chain reaction-restriction fragment length polymorphism analysis of paraffin-embedded tissues
AU - Sakamoto, Akio
AU - Oda, Yoshinao
AU - Iwamoto, Yukihide
AU - Tsuneyoshi, Masazumi
N1 - Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2000/5
Y1 - 2000/5
N2 - Fibrous dysplasia and osteofibrous dysplasia are both benign fibro-osseous lesions of the bone and are generally seen during childhood or adolescence. Histologically, the features of these bone lesions sometimes look quite similar, but their precise nature remains controversial. Mutation of the α subunit of signal-transducing G proteins (GSα), with an increase in cyclic adenosine monophosphate (cAMP) formation, has been implicated in the development of multiple endocrinopathies of the Albright-McCune syndrome and in the development of fibrous dysplasia. We studied GSα mutation at the Arg201 codon in seven cases of fibrous dysplasia (six monostotic lesions and one polyostotic lesion) and seven cases of osteofibrous dysplasia using formalin-fixed, paraffin-embedded tissue, by means of polymerase chain reaction-restriction fragment length polymorphism and direct sequencing analysis. All of the seven cases of fibrous dysplasia showed missense point mutations in GSα at the Arg201 codon that resulted in Arg-to-His substitution in three cases and Arg-to-Cys substitution in four cases. On the other hand, the seven cases of osteofibrous dysplasia and the normal bone used as a control showed no such mutation. These data suggest that fibrous dysplasia and osteofibrous dysplasia have different pathogeneses and that the detection of GSα mutation at the Arg201 codon is quite useful for distinguishing between these lesions.
AB - Fibrous dysplasia and osteofibrous dysplasia are both benign fibro-osseous lesions of the bone and are generally seen during childhood or adolescence. Histologically, the features of these bone lesions sometimes look quite similar, but their precise nature remains controversial. Mutation of the α subunit of signal-transducing G proteins (GSα), with an increase in cyclic adenosine monophosphate (cAMP) formation, has been implicated in the development of multiple endocrinopathies of the Albright-McCune syndrome and in the development of fibrous dysplasia. We studied GSα mutation at the Arg201 codon in seven cases of fibrous dysplasia (six monostotic lesions and one polyostotic lesion) and seven cases of osteofibrous dysplasia using formalin-fixed, paraffin-embedded tissue, by means of polymerase chain reaction-restriction fragment length polymorphism and direct sequencing analysis. All of the seven cases of fibrous dysplasia showed missense point mutations in GSα at the Arg201 codon that resulted in Arg-to-His substitution in three cases and Arg-to-Cys substitution in four cases. On the other hand, the seven cases of osteofibrous dysplasia and the normal bone used as a control showed no such mutation. These data suggest that fibrous dysplasia and osteofibrous dysplasia have different pathogeneses and that the detection of GSα mutation at the Arg201 codon is quite useful for distinguishing between these lesions.
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U2 - 10.1016/S1525-1578(10)60618-6
DO - 10.1016/S1525-1578(10)60618-6
M3 - Article
C2 - 11272890
AN - SCOPUS:0034188969
VL - 2
SP - 67
EP - 72
JO - Journal of Molecular Diagnostics
JF - Journal of Molecular Diagnostics
SN - 1525-1578
IS - 2
ER -