Publication
Title
Identification of copy number variants associated with BPES-like phenotypes
Author
Abstract
Blepharophimosis-Ptosis-Epicanthus inversus syndrome (BPES) is a well-characterized rare syndrome that includes an eyelid malformation associated with (type I) or without premature ovarian failure (type II). Patients with typical BPES have four major characteristics: blepharophimosis, ptosis, epicanthus inversus and telecanthus. Mutations in the FOXL2 gene, encoding a forkhead transcription factor, are responsible for the majority of both types of BPES. However, many patients with BPES-like features, i.e., having at least two major characteristics of BPES, have an unidentified cause. Here, we report on a group of 27 patients with BPES-like features, but without an identified genetic defect in the FOXL2 gene or flanking region. These patients were analyzed with whole-genome high-density arrays in order to identify copy number variants (CNVs) that might explain the BPES-like phenotype. In nine out of 27 patients (33%) CNVs not previously described as polymorphisms were detected. Four of these patients displayed psychomotor retardation as an additional clinical characteristic. In conclusion, we demonstrate that BPES-like phenotypes are frequently caused by CNVs, and we emphasize the importance of whole-genome copy number screening to identify the underlying genetic causes of these phenotypes.
Language
English
Source (journal)
Human genetics. - Berlin
Publication
Berlin : 2008
ISSN
0340-6717
Volume/pages
124:5(2008), p. 489-498
ISI
000261178900006
Full text (Publisher's DOI)
UAntwerpen
Publication type
Subject
External links
Web of Science
Record
Identification
Creation 05.11.2018
Last edited 06.07.2021