A 52-kb deletion in the SOST-MEOX1 intergenic region on 17q12-q21 is associated with van Buchem disease in the Dutch population.
Van Buchem disease is an autosomal recessive sclerosing bone dysplasia characterized by skeletal hyperostosis, overgrowth of the mandible, and a liability to entrapment of the seventh and eighth cranial nerves. The genetic determinant maps to chromosome 17q12-q21. We refined the critical interval to the < 1-Mb region between D17S2250 and D17S2253 in 15 affected individuals, all of whom shared a common disease haplotype. Furthermore, we report here the identification of a 52-kb deletion located within the interval and encompassing D17S1789 that is 100% concordant with the disorder. Although the deletion itself does not appear to disrupt the coding region of any known or novel gene(s), the closest flanking genes are MEOX1 on the proximal side, and SOST on the distal side of the deletion. MEOX1 is known to be important for the development of the axial skeleton, whereas the SOST gene is the determinant of sclerosteosis, a disorder that shares many features with van Buchem disease, thus raising the possibility that van Buchem disease results from dysregulation of the expression of one or both of these genes.
Celltech R&D Inc., Bothell, Washington 98021, USA.
Karen
K
Staehling-Hampton
Sean
S
Proll
Bryan W
BW
Paeper
Lei
L
Zhao
Patrick
P
Charmley
Analisa
A
Brown
Jessica C
JC
Gardner
David
D
Galas
Randall C
RC
Schatzman
Peter
P
Beighton
Socrates
S
Papapoulos
Herman
H
Hamersma
Mary E
ME
Brunkow
D048868:Adaptor Proteins, Signal Transducing; D000349:Africa; D001483:Base Sequence; D019485:Bone Morphogenetic Proteins; D002872:Chromosome Deletion; D002886:Chromosomes, Human, Pair 17 / Q000235:genetics*; D021901:DNA, Intergenic / Q000235:genetics; D005260:Female; D005819:Genetic Markers; D020022:Genetic Predisposition to Disease / Q000235:genetics; D006239:Haplotypes; D006801:Humans; D008297:Male; D018895:Microsatellite Repeats; D009426:Netherlands; D010009:Osteochondrodysplasias / Q000235:genetics* / Q000473:pathology; D010026:Osteosclerosis / Q000235:genetics; D020641:Polymorphism, Single Nucleotide; D011506:Proteins / Q000235:genetics
D048868:Adaptor Proteins, Signal Transducing; D019485:Bone Morphogenetic Proteins; D021901:DNA, Intergenic; D005819:Genetic Markers; D011506:Proteins; C422903:SOST protein, human