Mutation of KCNJ8 in a patient with Cantu syndrome with unique vascular abnormalities - Support for the role of K(ATP) channels in this condition

被引:76
|
作者
Brownstein, Catherine A. [1 ]
Towne, Meghan C. [1 ]
Luquette, Lovelace J. [2 ]
Harris, David J. [1 ]
Marinakis, Nicholas S. [1 ]
Meinecke, Peter [3 ]
Kutsche, Kerstin [3 ]
Campeau, Philippe M. [4 ]
Yu, Timothy W. [1 ]
Margulies, David M. [1 ]
Agrawal, Pankaj B. [1 ]
Beggs, Alan H. [1 ]
机构
[1] Harvard Univ, Div Genet & Gen, Boston Childrens Hosp, Sch Med,Manton Ctr Orphan Dis Res, Boston, MA USA
[2] Harvard Univ, Sch Med, Ctr Biomed Informat, Boston, MA USA
[3] Univ Med Ctr Hamburg Eppendorf, Inst Human Genet, Hamburg, Germany
[4] Baylor Coll Med, Dept Mol & Human Genet, Houston, TX 77030 USA
基金
美国国家卫生研究院;
关键词
Cantu syndrome; Mutation; Exome; Potassium channel; K-ATP CHANNELS; POTASSIUM CHANNELS; SULFONYLUREA RECEPTOR; SUBUNIT; CLONING; MUSCLE; ABCC9;
D O I
10.1016/j.ejmg.2013.09.009
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
KCNJ8 (NM_004982) encodes the pore forming subunit of one of the ATP-sensitive inwardly rectifying potassium (K-ATP) channels. KCNJ8 sequence variations are traditionally associated with J-wave syndromes, involving ventricular fibrillation and sudden cardiac death. Recently, the K-ATP gene ABCC9 (SUR2, NM_020297) has been associated with the multi-organ disorder Cantu syndrome or hypertrichotic osteochondrodysplasia (MIM 239850) (hypertrichosis, macrosomia, osteochondrodysplasia, and cardiomegaly). Here, we report on a patient with a de novo nonsynonymous KCNJ8 SNV (p.V65M) and Cantu syndrome, who tested negative for mutations in ABCC9. The genotype and multi-organ abnormalities of this patient are reviewed. A careful screening of the K-ATP genes should be performed in all individuals diagnosed with Cantu syndrome and no mutation in ABCC9. (C) 2013 Elsevier Masson SAS. All rights reserved.
引用
收藏
页码:678 / 682
页数:5
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