title: Duplication and deletion of CFC1 associated with heterotaxy syndrome.
abstract: Heterotaxy syndrome, which causes significant morbidity and mortality, is a class of congenital disorders, in which normal left-right asymmetry cannot be properly established. To explore the role of copy number variants (CNVs) in the occurrence of heterotaxy syndrome, we recruited 93 heterotaxy patients and studied 12 of them by the Affymetrix Genome-Wide Human SNP 6.0 Array. The results were confirmed in the remaining 81 patients and 500 healthy children by quantitative real-time polymerase chain reaction (qPCR). The analysis of the SNP6.0 array showed a duplication of chromosome 2q21.1, which was verified by qPCR. The result of qPCR in the other 81 patients showed that 8/81 patients had the CNVs of 2q21.1 and the only overlapping gene in these patients is CFC1. However, in the 500 healthy children, only one carried the duplication of CFC1 (p=3.5×10(-7)). The duplication and deletion of CFC1 may play key roles in the occurrence of heterotaxy syndrome. Moreover, the transposed great arteries, double outlet right ventricle, single atrium, and single ventricle may share a common genetic etiology with the heterotaxy syndrome.
authors.affiliation: 1 Department of Pediatric Cardiology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai, People's Republic of China .
authors.forename: Ruixue
authors.initials: R
authors.lastname: Cao
authors.forename: Fei
authors.initials: F
authors.lastname: Long
authors.forename: Liping
authors.initials: L
authors.lastname: Wang
authors.forename: Yuejuan
authors.initials: Y
authors.lastname: Xu
authors.forename: Ying
authors.initials: Y
authors.lastname: Guo
authors.forename: Fen
authors.initials: F
authors.lastname: Li
authors.forename: Sun
authors.initials: S
authors.lastname: Chen
authors.forename: Kun
authors.initials: K
authors.lastname: Sun
authors.forename: Rang
authors.initials: R
authors.lastname: Xu
mesh_terms: D002648:Child; D002869:Chromosome Aberrations; D002889:Chromosomes, Human, Pair 2 / Q000235:genetics; D056915:DNA Copy Number Variations; D004252:DNA Mutational Analysis; D005260:Female; D017353:Gene Deletion; D020440:Gene Duplication; D020022:Genetic Predisposition to Disease / Q000235:genetics*; D055106:Genome-Wide Association Study / Q000379:methods; D059446:Heterotaxy Syndrome / Q000235:genetics*; D006801:Humans; D036341:Intercellular Signaling Peptides and Proteins / Q000235:genetics*; D008297:Male; D020641:Polymorphism, Single Nucleotide; D020133:Reverse Transcriptase Polymerase Chain Reaction
chemical_list: C491268:CFC1 protein, human; D036341:Intercellular Signaling Peptides and Proteins