Cost-effective sequence analysis of 113 genes in 1,192 probands with retinitis pigmentosa and Leber congenital amaurosis

Introduction: Retinitis pigmentosa (RP) and Leber congenital amaurosis (LCA) are two groups of inherited retinal diseases (IRDs) where the rod photoreceptors degenerate followed by the cone photoreceptors of the retina. A genetic diagnosis for IRDs is challenging since >280 genes are associated w...

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Detalles Bibliográficos
Autores: Panneman, Daan M., Hitti-Malin, Rebekkah J., Holtes, Lara K., Bruijn, Suzanne E. de, Reurink, Janine, Boonen, Erica G. M., Khan, Muhammad Imran, Ali, Manir, Andréasson, Sten, De Baere, Elfride, Banfi, Sandro, Bauwens, Miriam, Ben-Yosef, Tamar, Bocquet, Béatrice, De Bruyne, Marieke, Cerda, Berta de la, Coppieters, Frauke, Farinelli, Pietro, Guignard, Thomas, Inglehearn, Chris F., Karali, Marianthi, Kjellström, Ulrika, Koenekoop, Robert, Koning, Bart de, Leroy, Bart P., McKibbin, Martin, Meunier, Isabelle, Nikopoulos, Konstantinos, Nishiguchi, Koji M., Poulter, James A., Rivolta, Carlo, Rodríguez de la Rúa, Enrique, Saunders, Patrick, Simonelli, Francesca, Tatour, Yasmin, Testa, Francesco, Thiadens, Alberta A. H. J., Toomes, Carmel, Tracewska, Anna M., Tran, Hoai Viet, Ushida, Hiroaki, Vaclavik, Veronika, Verhoeven, Virginie J. M., Vorst, Maartje van de, Gilissen, Christian, Hoischen, Alexander, Cremers, Frans P. M., Roosing, Susanne
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/335920
Acceso en línea:http://hdl.handle.net/10261/335920
Access Level:acceso abierto
Palabra clave:Inherited retinal diseases
Targeted gene sequencing
Cost-effective
High-throughput
SmMIPs
Descripción
Sumario:Introduction: Retinitis pigmentosa (RP) and Leber congenital amaurosis (LCA) are two groups of inherited retinal diseases (IRDs) where the rod photoreceptors degenerate followed by the cone photoreceptors of the retina. A genetic diagnosis for IRDs is challenging since >280 genes are associated with these conditions. While whole exome sequencing (WES) is commonly used by diagnostic facilities, the costs and required infrastructure prevent its global applicability. Previous studies have shown the cost-effectiveness of sequence analysis using single molecule Molecular Inversion Probes (smMIPs) in a cohort of patients diagnosed with Stargardt disease and other maculopathies. Methods: Here, we introduce a smMIPs panel that targets the exons and splice sites of all currently known genes associated with RP and LCA, the entire RPE65 gene, known causative deep-intronic variants leading to pseudo-exons, and part of the RP17 region associated with autosomal dominant RP, by using a total of 16,812 smMIPs. The RP-LCA smMIPs panel was used to screen 1,192 probands from an international cohort of predominantly RP and LCA cases. Results and discussion: After genetic analysis, a diagnostic yield of 56% was obtained which is on par with results from WES analysis. The effectiveness and the reduced costs compared to WES renders the RP-LCA smMIPs panel a competitive approach to provide IRD patients with a genetic diagnosis, especially in countries with restricted access to genetic testing.

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