Identification of a de novo FOXP1 mutation and incidental discovery of inherited genetic variants contributing to a case of autism spectrum disorder and epilepsy

Kristy Jay, Amit Mitra, Taylor Harding, David Matthes, Brian G Van Ness

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Background: Autism spectrum disorder is commonly co-diagnosed intellectual disability, language disorder, anxiety, and epilepsy, however, symptom management is difficult due to the complex genetic nature of ASD. Methods: We present a next-generation sequencing-based case study with both de novo and inherited genetic variants and highlight the impact of structural variants on post-translational regulation of protein expression. Since management of symptoms has classically been through pharmaceutical therapies, a pharmacogenomics screen was also utilized to determine possible drug/gene interactions. Results: A de novo variant was identified within the FOXP1 3′ untranslated regulatory region using exome sequencing. Additionally, inherited variants that likely contribute to the current and potential future traits were identified within the COMT, SLC6A4, CYP2C19, and CYP2D6 genes. Conclusion: This study aims to elucidate how a collection of variant genotypes could potentially impact neural development resulting in a unique phenotype including ASD and epilepsy. Each gene's contribution to neural development is assessed, and the interplay of these genotypes is discussed. The results highlight the utility of exome sequencing in conjunction with pharmacogenomics screening when evaluating possible causes of and therapeutic treatments for ASD-related symptoms.

Original languageEnglish (US)
Article numbere00751
JournalMolecular Genetics and Genomic Medicine
Volume7
Issue number7
DOIs
StatePublished - Jul 2019

Bibliographical note

Funding Information:
Research supported by funds from the University of Minnesota‐Twin Cities, department of Genetics, Cell Biology, and Development.

Funding Information:
Funding information Research supported by funds from the University of Minnesota-Twin Cities, department of Genetics, Cell Biology, and Development. The authors thank the family for their involvement in this case study and The University of Minnesota Genomics Center.

Publisher Copyright:
© 2019 The Authors. Molecular Genetics & Genomic Medicine published by Wiley Periodicals, Inc.

Keywords

  • COMT
  • FOXP1
  • SLC6A4
  • structural variants
  • whole genome/exome sequencing

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