ヤマモト　トシユキ   Toshiyuki Yamamoto   山本　俊至    所属   医学部 医学科（東京女子医科大学病院）    職種   教授
論文種別	症例報告
言語種別	英語
査読の有無	査読なし
表題	West syndrome associated with mosaic duplication of FOXG1 in a patient with maternal uniparental disomy of chromosome 14.
掲載誌名	正式名：American Journal of Medical Genetics
巻・号・頁	155(10),pp.2584-2588
著者・共著者	Jun Tohyama, Toshiyuki Yamamoto, Kana Hosoki, Keisuke Nagasaki, Noriyuki Akasaka, Tsukasa Ohashi, Yu Kobayashi, Shinji Saitoh
発行年月	2011/10
概要	FOXG1 on chromosome 14 has recently been suggested as a dosage-sensitive gene. Duplication of this gene could cause severe epilepsy and developmental delay, including infantile spasms. Here, we report on a female patient diagnosed with maternal uniparental disomy of chromosome 14 and West syndrome who carried a small supernumerary marker chromosome. A chromosomal analysis revealed mosaicism of 47,XX, + mar[8]/46,XX[18]. Spectral karyotyping multicolor fluorescence in situ hybridization analysis confirmed that the marker chromosome was derived from chromosome 14. A DNA methylation test at MEG3 in 14q32.2 and microsatellite analysis using polymorphic markers on chromosome 14 confirmed that the patient had maternal uniparental disomy 14 as well as a mosaic small marker chromosome of paternal origin containing the proximal long arm of chromosome 14. Microarray-based comparative genomic hybridization analysis conclusively defined the region of the gain of genomic copy numbers at 14q11.2-q12, encompassing FOXG1. The results of the analyses of our patient provide further evidence that not only duplication but also a small increase in the dosage of FOXG1 could cause infantile spasms.
DOI	10.1002