Ocular Genomics
243 Charles Street Boston, MA 02114 Contact us
Diagnostic Testing
Support our research
Explore our labs
Ocular Genomics MENU
Ocular Genomics
  • Meet the Team
  • Services
    • Biobank Core Services
    • Bioinformatics and Statistics Core
    • Functional Genomics (Zebrafish) Core
    • Gene Transfer Vector
      • Rates
      • Order Information
      • Contact Us
    • Genetic Diagnostic Testing Service
      • Pricing
    • Genomics Core Services
      • Additional Genomics Services
      • Sanger Sequencing
      • Array Analysis
      • Next-Generation Sequencing (NGS)
  • Labs
    • Biobank Core
    • Bujakowska Lab
      • Lab Members
      • Publications
    • Comander Lab
      • Lab Members
      • Publications
    • Engle Lab
      • Lab Members
    • Fernandez-Godino Lab
      • Lab Members
      • Macular Degeneration
      • Publications
    • Functional Genomics Core (Zebrafish Facility)
      • Lab Members
    • Genetic Counseling Team
      • Team Members
    • Genomics Core Lab
      • Lab Members
    • Liu Lab
      • Lab Members
      • Publications
      • Projects
    • MEEI Bioinformatics Center (MBC)
      • Lab Members
    • Pierce Lab
      • Lab Members
      • Publications
      • Projects
    • Segrè Lab
      • Selected Publications
    • Vandenberghe Lab
      • Lab Members
    • Wiggs Lab
      • Lab Members
  • News & Publications
    • RETINAL Transcriptome
  • Affiliates
  • Careers
  • Home
  • News
  • GED-i Findings Published

Featured Posts

  • Work by Caitlin Collin & Qin Liu highlighted at ARVO 2021 meeting
  • Ground-breaking study to restore vision uses CRISPR technology
  • Licensing Agreement with Biogen to Develop Treatment for Inherited Retinal Disorder

Recent Posts

  • Precision Medicine at Work
  • Work by Caitlin Collin & Qin Liu highlighted at ARVO 2021 meeting
  • Ground-breaking study to restore vision uses CRISPR technology
  • Ocular Genomics Institute Scientists publish large Gene-Wide Association Study of Glaucoma
  • AAVCOVID Vaccine developed by Luk Vandenberghe to start Clinical trials

Archives

  • June 2021
  • May 2021
  • March 2021
  • February 2021
  • November 2020
  • October 2020
  • September 2020
  • August 2020
  • June 2020
  • August 2019
  • May 2019
  • April 2019
  • May 2018
  • April 2018
  • March 2018
  • November 2017
  • September 2017
  • June 2017
  • May 2017
  • April 2017
  • March 2017

Categories

  • News
  • Publication
  • Uncategorized

GED-i Findings Published
May 1, 2017

Mass. Eye and Ear Researchers Report that Panel-based Genetic Diagnostic Testing for Inherited Eye Diseases is Highly Accurate and More Sensitive than Exome Sequencing

Findings published online in Genetics in Medicine 

BOSTON (November 20, 2014) Investigators at Massachusetts Eye and Ear and Harvard Medical School Department of Ophthalmology and colleagues reported the development and characterization of a comprehensive genetic test for inherited eye disorders in the online version of the Nature journal Genetics In Medicine today. The Genetic Eye Disease (GEDi) test includes all of the genes known to harbor mutations that cause inherited retinal degenerations, optic atrophy and early onset glaucoma. These disorders are important causes of vision loss, and genetic treatments such as gene therapy hold promise for preserving vision in affected individuals. The GEDi test is offered on a CLIA-certified basis through the Ocular Genomics Institute (OGI) at Mass. Eye and Ear.

The retina is the neural tissue in the back of the eye that initiates vision. It is responsible for receiving light signals and converting them into neurologic signals, which are then transmitted via the optic nerve to the brain so that we can see. Mutations that disrupt vision by damaging the retina and optic nerve have been identified in more than 200 genes. This genetic diversity made genetic diagnostic testing difficult until the recent development of high throughput genomic techniques. The GEDi test uses targeted capture and next generation sequencing techniques to sequence 226 genes known to cause inherited eye disorders. Future versions of the test will also include genes responsible for eye movement disorders (strabismus) and other inherited eye conditions.

Gene panel-based tests for inherited eye disorders have been previously reported, but none of these have been as thoroughly characterized with regard to their performance in a diagnostic setting as the GEDi test. Stringent tests of accuracy and reproducibility showed that the GEDi test is both highly accurate and reproducible. This type of validation testing is recommended by the American College of Medical Genetics and Genomics, but few other genetic tests have been characterized in as much detail as the GEDi test. The results reported show that the GEDi test is 98 percent accurate at detecting spelling variations or mutations in the genetic code of inherited eye disease genes, and is highly reproducible between test runs. In contrast, the technique whole exome sequencing ― in which the coding regions of all genes are sequenced, and which is being employed commonly in clinical settings―was 88 percent accurate at detecting genetic variants in the same genes.

“The results we obtained for the GEDi test have broad implications and show that panel-based testing focused on the specific genes associated with genetic conditions offers important advantages over whole exome sequencing,” said Janey Wiggs, M.D., Ph.D., director of the Genetic Diagnostic Testing Service of the OGI, and the Paul Austin Chandler Associate Professor of Ophthalmology, Harvard Medical School.

Investigators in the OGI and other centers around the United States and the world are optimistic that treatments targeting the underlying genetic cause of inherited eye disorders can be applied broadly to preserve vision. One especially promising approach is gene therapy, in which a correct copy of the misspelled or mutant gene responsible for disease is added to the affected cells in the retina. Reports of early results from clinical trials of gene therapies for two inherited retinal degenerative disorders have shown that this treatment can be performed safely, and that subjects treated in these trials experienced significant improvements in or preservation of vision. Clinical trials of gene therapies for 3 additional genetic forms of inherited retinal degeneration are currently in progress, and more are on the way. Given the potential of gene and genetic therapies, improved genetic diagnostic testing for patients with genetic eye disorders such as that offered with the GEDi test is especially important.

About Massachusetts Eye and Ear
Mass. Eye and Ear clinicians and scientists are driven by a mission to find cures for blindness, deafness and diseases of the head and neck.  After uniting with Schepens Eye Research Institute in 2011, Mass. Eye and Ear in Boston became the world’s largest vision and hearing research center, offering hope and healing to patients everywhere through discovery and innovation.  Mass. Eye and Ear is a Harvard Medical School teaching hospital and trains future medical leaders in ophthalmology and otolaryngology, through residency as well as clinical and research fellowships.  Internationally acclaimed since its founding in 1824, Mass. Eye and Ear employs full-time, board-certified physicians who offer high-quality and affordable specialty care that ranges from the routine to the very complex.  U.S. News & World Report’s “Best Hospitals Survey” has consistently ranked the Mass. Eye and Ear Departments of Otolaryngology and Ophthalmology as among the top hospitals in the nation. Mass. Eye and Ear is home to the Ocular Genomics Institute which aims to translate the promise of precision medicine into clinical care for ophthalmic disorders. For more information about life-changing care and research, or to learn how you can help, please visit MassEyeAndEar.org.

Reference:

Consugar MB*, Navarro-Gomez D*, Place EM*, Bujakowska KM, Sousa ME, Fonseca-Kelly ZD, Taub DG, Janessian M, Wang DY, Au ED, Sims KB, Sweetser DA, Fulton AB, Liu Q, Wiggs JL,Gai X, Pierce EA. Panel-based Genetic Diagnostic Testing for Inherited Eye Diseases is Highly Accurate and Reproducible and More Sensitive for Variant Detection Than Exome Sequencing. Genetics In Medicine, In Press. (*Co-first authors).

Grant support:

This work was supported by grants from the National Institutes of Health (EY012910, and P30EY014104), the March of Dimes and the Foundation Fighting Blindness.

The full list of collaborators and organizations is available in the PDF.

Featured:

Contact Us

243 Charles Street
Boston, MA 02114

Labs

  • Engle Lab
  • Pierce Lab
  • Vandenberghe Lab
  • Wiggs Lab
  • Genomics Core Lab
  • Functional Genomics Core (Zebrafish Facility)
  • MEEI Bioinformatics Center (MBC)

Sitemap

  • Affiliates
  • Careers
  • Meet the Team
  • News & publications
  • Support Our Research
  • Services
  • Privacy
website-boston WebsiteBoston