A De Novo Mutation in TEAD1 Causes Non-X-Linked Aicardi Syndrome.

Autor:	Schrauwen I; Dorrance Center for Rare Childhood Disorders, Translational Genomics Research Institute, Phoenix, Arizona, United States 2Neurogenomics Division, Translational Genomics Research Institute, Phoenix, Arizona, United States 3Department of Medical Genetics, U., Szelinger S; Dorrance Center for Rare Childhood Disorders, Translational Genomics Research Institute, Phoenix, Arizona, United States 2Neurogenomics Division, Translational Genomics Research Institute, Phoenix, Arizona, United States., Siniard AL; Dorrance Center for Rare Childhood Disorders, Translational Genomics Research Institute, Phoenix, Arizona, United States 2Neurogenomics Division, Translational Genomics Research Institute, Phoenix, Arizona, United States., Corneveaux JJ; Dorrance Center for Rare Childhood Disorders, Translational Genomics Research Institute, Phoenix, Arizona, United States 2Neurogenomics Division, Translational Genomics Research Institute, Phoenix, Arizona, United States., Kurdoglu A; Dorrance Center for Rare Childhood Disorders, Translational Genomics Research Institute, Phoenix, Arizona, United States 2Neurogenomics Division, Translational Genomics Research Institute, Phoenix, Arizona, United States., Richholt R; Dorrance Center for Rare Childhood Disorders, Translational Genomics Research Institute, Phoenix, Arizona, United States 2Neurogenomics Division, Translational Genomics Research Institute, Phoenix, Arizona, United States., De Both M; Dorrance Center for Rare Childhood Disorders, Translational Genomics Research Institute, Phoenix, Arizona, United States 2Neurogenomics Division, Translational Genomics Research Institute, Phoenix, Arizona, United States., Malenica I; Dorrance Center for Rare Childhood Disorders, Translational Genomics Research Institute, Phoenix, Arizona, United States 2Neurogenomics Division, Translational Genomics Research Institute, Phoenix, Arizona, United States., Swaminathan S; Dorrance Center for Rare Childhood Disorders, Translational Genomics Research Institute, Phoenix, Arizona, United States 2Neurogenomics Division, Translational Genomics Research Institute, Phoenix, Arizona, United States., Rangasamy S; Dorrance Center for Rare Childhood Disorders, Translational Genomics Research Institute, Phoenix, Arizona, United States 2Neurogenomics Division, Translational Genomics Research Institute, Phoenix, Arizona, United States., Kulkarni N; Phoenix Children's Hospital, Phoenix, Arizona, United States., Bernes S; Phoenix Children's Hospital, Phoenix, Arizona, United States., Buchhalter J; Alberta Children's Hospital, University of Calgary, Alberta, Canada., Ramsey K; Dorrance Center for Rare Childhood Disorders, Translational Genomics Research Institute, Phoenix, Arizona, United States 2Neurogenomics Division, Translational Genomics Research Institute, Phoenix, Arizona, United States., Craig DW; Dorrance Center for Rare Childhood Disorders, Translational Genomics Research Institute, Phoenix, Arizona, United States 2Neurogenomics Division, Translational Genomics Research Institute, Phoenix, Arizona, United States., Narayanan V; Dorrance Center for Rare Childhood Disorders, Translational Genomics Research Institute, Phoenix, Arizona, United States 2Neurogenomics Division, Translational Genomics Research Institute, Phoenix, Arizona, United States., Huentelman MJ; Dorrance Center for Rare Childhood Disorders, Translational Genomics Research Institute, Phoenix, Arizona, United States 2Neurogenomics Division, Translational Genomics Research Institute, Phoenix, Arizona, United States.
Jazyk:	angličtina
Zdroj:	Investigative ophthalmology & visual science [Invest Ophthalmol Vis Sci] 2015 Jun; Vol. 56 (6), pp. 3896-904.
DOI:	10.1167/iovs.14-16261
Abstrakt:	Purpose: Aicardi syndrome (AIC) is a congenital neurodevelopmental disorder characterized by infantile spasms, agenesis of the corpus callosum, and chorioretinal lacunae. Variation in phenotype and disease severity is well documented, but chorioretinal lacunae represent the most constant pathological feature. Aicardi syndrome is believed to be an X-linked-dominant disorder occurring almost exclusively in females, although 46, XY males with AIC have been described. The purpose of this study is to identify genetic factors and pathways involved in AIC. Methods: We performed exome/genome sequencing of 10 children diagnosed with AIC and their parents and performed RNA sequencing on blood samples from nine cases, their parents, and unrelated controls. Results: We identified a de novo mutation in autosomal gene TEAD1, expressed in the retina and brain, in a patient with AIC. Mutations in TEAD1 have previously been associated with Sveinsson's chorioretinal atrophy, characterized by chorioretinal degeneration. This demonstrates that TEAD1 mutations can lead to different chorioretinal complications. In addition, we found that altered expression of genes associated with synaptic plasticity, neuronal development, retinal development, and cell cycle control/apoptosis is an important underlying potential pathogenic mechanism shared among cases. Last, we found a case with skewed X inactivation, supporting the idea that nonrandom X inactivation might be important in AIC. Conclusions: We expand the phenotype of TEAD1 mutations, demonstrate its importance in chorioretinal complications, and propose the first putative pathogenic mechanisms underlying AIC. Our data suggest that AIC is a genetically heterogeneous disease and is not restricted to the X chromosome, and that TEAD1 mutations may be present in male patients.
Databáze:	MEDLINE
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