1
|
Ryu J, Statz JP, Chan W, Burch FC, Brigande JV, Kempton B, Porsov EV, Renner L, McGill T, Burwitz BJ, Hanna CB, Neuringer M, Hennebold JD. CRISPR/Cas9 editing of the MYO7A gene in rhesus macaque embryos to generate a primate model of Usher syndrome type 1B. Sci Rep 2022; 12:10036. [PMID: 35710827 PMCID: PMC9203743 DOI: 10.1038/s41598-022-13689-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 05/26/2022] [Indexed: 12/02/2022] Open
Abstract
Mutations in the MYO7A gene lead to Usher syndrome type 1B (USH1B), a disease characterized by congenital deafness, vision loss, and balance impairment. To create a nonhuman primate (NHP) USH1B model, CRISPR/Cas9 was used to disrupt MYO7A in rhesus macaque zygotes. The targeting efficiency of Cas9 mRNA and hybridized crRNA-tracrRNA (hyb-gRNA) was compared to Cas9 nuclease (Nuc) protein and synthetic single guide (sg)RNAs. Nuc/sgRNA injection led to higher editing efficiencies relative to mRNA/hyb-gRNAs. Mutations were assessed by preimplantation genetic testing (PGT) and those with the desired mutations were transferred into surrogates. A pregnancy was established from an embryo where 92.1% of the PGT sequencing reads possessed a single G insertion that leads to a premature stop codon. Analysis of single peripheral blood leukocytes from the infant revealed that half the cells possessed the homozygous single base insertion and the remaining cells had the wild-type MYO7A sequence. The infant showed sensitive auditory thresholds beginning at 3 months. Although further optimization is needed, our studies demonstrate that it is feasible to use CRISPR technologies for creating NHP models of human diseases.
Collapse
Affiliation(s)
- Junghyun Ryu
- Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR, 97006, USA
| | - John P Statz
- Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR, 97006, USA
- Division of Biological Sciences, University of Montana, Missoula, MT, 59812, USA
| | - William Chan
- Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR, 97006, USA
- University of Texas Southwestern Medical School, 5323 Harry Hines Blvd, Dallas, TX, 75390, USA
| | - Fernanda C Burch
- Assisted Reproductive Technologies Core, Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR, 97006, USA
| | - John V Brigande
- Department of Otolaryngology, Oregon Hearing Research Center, Oregon Health and Science University, Portland, OR, 97239, USA
| | - Beth Kempton
- Department of Otolaryngology, Oregon Hearing Research Center, Oregon Health and Science University, Portland, OR, 97239, USA
| | - Edward V Porsov
- Department of Otolaryngology, Oregon Hearing Research Center, Oregon Health and Science University, Portland, OR, 97239, USA
| | - Lauren Renner
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR, 97006, USA
| | - Trevor McGill
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR, 97006, USA
- Department of Ophthalmology, Casey Eye Institute, Oregon Health and Science University, Beaverton, OR, 97006, USA
| | - Benjamin J Burwitz
- Vaccine and Gene Therapy Institute, Oregon Health and Science University, Beaverton, OR, 97006, USA
| | - Carol B Hanna
- Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR, 97006, USA
- Assisted Reproductive Technologies Core, Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR, 97006, USA
| | - Martha Neuringer
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR, 97006, USA
- Department of Ophthalmology, Casey Eye Institute, Oregon Health and Science University, Beaverton, OR, 97006, USA
| | - Jon D Hennebold
- Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR, 97006, USA.
- Department of Obstetrics and Gynecology, Oregon Health and Science University, Portland, OR, 97239, USA.
| |
Collapse
|
2
|
Ambrosio L, Hansen RM, Moskowitz A, Oza A, Barrett D, Manganella J, Medina G, Kawai K, Fulton AB, Kenna M. Dark-adapted threshold and electroretinogram for diagnosis of Usher syndrome. Doc Ophthalmol 2021; 143:39-51. [PMID: 33511521 DOI: 10.1007/s10633-021-09818-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Accepted: 01/07/2021] [Indexed: 12/21/2022]
Abstract
PURPOSE To determine the utility of ophthalmology evaluation, dark-adapted threshold, and full-field electroretinogram for early detection of Usher syndrome in young patients with bilateral sensorineural hearing loss. METHODS We identified 39 patients with secure genetic diagnoses of Usher Syndrome. Visual acuity, spherical equivalent, fundus appearance, dark-adapted threshold, and full-field electroretinogram results were summarized and compared to those in a group of healthy controls with normal hearing. In those Usher patients with repeated measures, regression analysis was done to evaluate for change in visual acuity and dark-adapted threshold with age. Spherical equivalent and full-field electroretinogram responses from dark- and light-adapted eyes were evaluated as a function of age. RESULTS The majority of initial visual acuity and spherical equivalent results were within normal limits for age. Visual acuity and dark-adapted threshold worsened significantly with age in Usher type 1 but not in Usher type 2. At initial test, full-field electroretinogram responses from dark- and light-adapted eyes were abnormal in 53% of patients. Remarkably, nearly half of our patients (17% of Usher type 1 and 30% of Usher type 2) would have been missed by tests of retinal function alone if evaluated before age 10. CONCLUSIONS Although there is an association of abnormal dark-adapted threshold and full-field electroretinogram at young ages in Usher patients, it appears that a small but important proportion of patients would not be detected by tests of retinal function alone. Thus, genetic testing is needed to secure a diagnosis of Usher syndrome.
Collapse
Affiliation(s)
- Lucia Ambrosio
- Department of Ophthalmology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA. .,Department of Ophthalmology, Harvard Medical School, 25 Shattuck Street, Boston, MA, 02115, USA.
| | - Ronald M Hansen
- Department of Ophthalmology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA.,Department of Ophthalmology, Harvard Medical School, 25 Shattuck Street, Boston, MA, 02115, USA
| | - Anne Moskowitz
- Department of Ophthalmology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA.,Department of Ophthalmology, Harvard Medical School, 25 Shattuck Street, Boston, MA, 02115, USA
| | - Andrea Oza
- Laboratory for Molecular Medicine, Partners HealthCare Personalized Medicine, 65 Landsdowne Street, Cambridge, MA, 02139, USA
| | - Devon Barrett
- Department of Otolaryngology and Communication Enhancement, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
| | - Juliana Manganella
- Department of Otolaryngology and Communication Enhancement, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
| | - Genevieve Medina
- Department of Otolaryngology and Communication Enhancement, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
| | - Kosuke Kawai
- Department of Otolaryngology and Communication Enhancement, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA.,Department of Otolaryngology, Harvard Medical School, 25 Shattuck Street, Boston, MA, 02115, USA
| | - Anne B Fulton
- Department of Ophthalmology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA.,Department of Ophthalmology, Harvard Medical School, 25 Shattuck Street, Boston, MA, 02115, USA
| | - Margaret Kenna
- Department of Otolaryngology and Communication Enhancement, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA.,Department of Otolaryngology, Harvard Medical School, 25 Shattuck Street, Boston, MA, 02115, USA
| |
Collapse
|
3
|
Abdalla Elsayed MEA, Hamweyah K, Al-Kharashi A, Schatz P. Multimodal imaging in serologically confirmed Rubella retinopathy. Graefes Arch Clin Exp Ophthalmol 2018; 256:1791-1794. [PMID: 29934649 DOI: 10.1007/s00417-018-4045-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 05/16/2018] [Accepted: 06/12/2018] [Indexed: 11/24/2022] Open
Affiliation(s)
| | - Karam Hamweyah
- King Khaled Eye Specialist Hospital, Riyadh, Kingdom of Saudi Arabia
| | - Abdulkarim Al-Kharashi
- King Khaled Eye Specialist Hospital, Riyadh, Kingdom of Saudi Arabia.,King Saud Medical City, Riyadh, Kingdom of Saudi Arabia
| | - Patrik Schatz
- King Khaled Eye Specialist Hospital, Riyadh, Kingdom of Saudi Arabia. .,Vitreoretinal Division, King Khaled Eye Specialist Hospital, Al- Oruba Street, PO Box 7191, Riyadh, 11462, Kingdom of Saudi Arabia. .,Department of Ophthalmology, Clinical Sciences, Skane County University Hospital, University of Lund, Lund, Sweden.
| |
Collapse
|
4
|
Kletke S, Batmanabane V, Dai T, Vincent A, Li S, Gordon KA, Papsin BC, Cushing SL, Héon E. The combination of vestibular impairment and congenital sensorineural hearing loss predisposes patients to ocular anomalies, including Usher syndrome. Clin Genet 2017; 92:26-33. [PMID: 27743452 DOI: 10.1111/cge.12895] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 10/05/2016] [Accepted: 10/12/2016] [Indexed: 11/29/2022]
Abstract
The co-occurrence of hearing impairment and visual dysfunction is devastating. Most deaf-blind etiologies are genetically determined, the commonest being Usher syndrome (USH). While studies of the congenitally deaf population reveal a variable degree of visual problems, there are no effective ophthalmic screening guidelines. We hypothesized that children with congenital sensorineural hearing loss (SNHL) and vestibular impairment were at an increased risk of having USH. A retrospective chart review of 33 cochlear implants recipients for severe to profound SNHL and measured vestibular dysfunction was performed to determine the ocular phenotype. All the cases had undergone ocular examination and electroretinogram (ERG). Patients with an abnormal ERG underwent genetic testing for USH. We found an underlying ocular abnormality in 81.81% (27/33) of cases; of which 75% had refractive errors, and 50% of those patients showed visual improvement with refractive correction. A total of 14 cases (42.42%; 14/33) had generalized rod-cone dysfunction on ERG suggestive of Usher syndrome type 1, confirmed by mutational analysis. This work shows that adding vestibular impairment as a criterion for requesting an eye exam and adding the ERG to detect USH increases the chances of detecting ocular anomalies, when compared with previous literature focusing only on congenital SNHL.
Collapse
Affiliation(s)
- S Kletke
- Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ontario, Canada
| | - V Batmanabane
- Department of Ophthalmology and Vision Sciences, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - T Dai
- Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ontario, Canada
| | - A Vincent
- Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ontario, Canada.,Department of Ophthalmology and Vision Sciences, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - S Li
- Program of Genetics and Genomic Biology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - K A Gordon
- Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ontario, Canada.,Department of Otolaryngology - Head & Neck Surgery, The Hospital for Sick Children, Toronto, Ontario, Canada.,Archie's Cochlear Implant Laboratory, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - B C Papsin
- Department of Otolaryngology - Head & Neck Surgery, The Hospital for Sick Children, Toronto, Ontario, Canada.,Archie's Cochlear Implant Laboratory, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - S L Cushing
- Department of Otolaryngology - Head & Neck Surgery, The Hospital for Sick Children, Toronto, Ontario, Canada.,Archie's Cochlear Implant Laboratory, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - E Héon
- Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ontario, Canada.,Department of Ophthalmology and Vision Sciences, The Hospital for Sick Children, Toronto, Ontario, Canada.,Program of Genetics and Genomic Biology, The Hospital for Sick Children, Toronto, Ontario, Canada
| |
Collapse
|