Novel Genetic Diagnoses in Septo-Optic Dysplasia. Genes (Basel) 2022 Jun 28;13(7)
Date
07/28/2022Pubmed ID
35885948Pubmed Central ID
PMC9320703DOI
10.3390/genes13071165Scopus ID
2-s2.0-85133527590 (requires institutional sign-in at Scopus site) 4 CitationsAbstract
Septo-optic dysplasia (SOD) is a developmental phenotype characterized by midline neuroradiological anomalies, optic nerve hypoplasia, and pituitary anomalies, with a high degree of variability and additional systemic anomalies present in some cases. While disruption of several transcription factors has been identified in SOD cohorts, most cases lack a genetic diagnosis, with multifactorial risk factors being thought to play a role. Exome sequencing in a cohort of families with a clinical diagnosis of SOD identified a genetic diagnosis in 3/6 families, de novo variants in SOX2, SHH, and ARID1A, and explored variants of uncertain significance in the remaining three. The outcome of this study suggests that investigation for a genetic etiology is warranted in individuals with SOD, particularly in the presence of additional syndromic anomalies and when born to older, multigravida mothers. The identification of causative variants in SHH and ARID1A further expands the phenotypic spectra associated with these genes and reveals novel pathways to explore in septo-optic dysplasia.
Author List
Reis LM, Seese S, Maheshwari M, Basel D, Weik L, McCarrier J, University Of Washington Center For Mendelian Genomics, Semina EVAuthors
Donald Basel MD Chief, Professor in the Pediatrics department at Medical College of WisconsinMohit Maheshwari MD Professor in the Radiology department at Medical College of Wisconsin
Elena V. Semina PhD Chief, Professor in the Ophthalmology and Visual Sciences department at Medical College of Wisconsin
MESH terms used to index this publication - Major topics in bold
HumansPhenotype
Septo-Optic Dysplasia
Superoxide Dismutase
