Targeted sequencing of 351 candidate genes for epileptic encephalopathy in a large cohort of patients

Autor: de Kovel, Carolien G.F., Brilstra, Eva H., van Kempen, Marjan J.A., van‘t Slot, Ruben, Nijman, Isaac J., Afawi, Zaid, De Jonghe, Peter, Djémié, Tania, Guerrini, Renzo, Hardies, Katia, Helbig, Ingo, Hendrickx, Rik, Kanaan, Moine, Kramer, Uri, Lehesjoki, Anna‐Elina E., Lemke, Johannes R., Marini, Carla, Mei, Davide, Møller, Rikke S., Pendziwiat, Manuela, Stamberger, Hannah, Suls, Arvid, Weckhuysen, Sarah, Koeleman, Bobby P.C., R, Balling, N, Barisic, S, Baulac, HS, Caglayan, DC, Craiu, C, Depienne, P, Gormley, H, Hjalgrim, D, Hoffman‐Zacharska, J, Jähn, KM, Klein, V, Komarek, E, LeGuern, H, Lerche, P, May, H, Muhle, D, Pal, A, Palotie, F, Rosenow, K, Selmer, JM, Serratosa, SM, Sisodiya, U, Stephani, K, Sterbova, P, Striano, T, Talvik, M, van Haelst, N, Verbeek, S, von Spiczak, YG, Weber
Přispěvatelé: Other departments, Amsterdam Reproduction & Development (AR&D), Human genetics, Amsterdam Neuroscience - Complex Trait Genetics, EuroEPINOMICS RES Consortium, Neuroscience Center, Research Programs Unit, Department of Medical and Clinical Genetics, Anna-Elina Lehesjoki / Principal Investigator, Research Programme for Molecular Neurology
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Molecular genetics and genomic medicine, 4(5), 568-580. John Wiley and Sons Inc.
Molecular Genetics and Genomic Medicine, 4(5), 568-580. John Wiley and Sons Inc.
de Kovel, C G F, Brilstra, E H, van Kempen, M J A, Van't Slot, R, Nijman, I J, Afawi, Z, De Jonghe, P, Djémié, T, Guerrini, R, Hardies, K, Helbig, I, Hendrickx, R, Kanaan, M, Kramer, U, Lehesjoki, A-E E, Lemke, J R, Marini, C, Mei, D, Møller, R S, Pendziwiat, M, Stamberger, H, Suls, A, Weckhuysen, S, Koeleman, B P C & EuroEPINOMICS RES Consortium 2016, ' Targeted sequencing of 351 candidate genes for epileptic encephalopathy in a large cohort of patients ', Molecular Genetics & Genomic Medicine, vol. 4, no. 5, pp. 568-580 . https://doi.org/10.1002/mgg3.235
EuroEPINOMICS RES Consortium 2016, ' Targeted sequencing of 351 candidate genes for epileptic encephalopathy in a large cohort of patients ', Molecular Genetics and Genomic Medicine, vol. 4, no. 5, pp. 568-580 . https://doi.org/10.1002/mgg3.235
Molecular genetics & genomic medicine
Molecular Genetics & Genomic Medicine
Molecular Genetics & Genomic Medicine, 4(5), 568. John Wiley and Sons Inc.
ISSN: 2324-9269
DOI: 10.1002/mgg3.235
Popis: BACKGROUND: Many genes are candidates for involvement in epileptic encephalopathy (EE) because one or a few possibly pathogenic variants have been found in patients, but insufficient genetic or functional evidence exists for a definite annotation.METHODS: To increase the number of validated EE genes, we sequenced 26 known and 351 candidate genes for EE in 360 patients. Variants in 25 genes known to be involved in EE or related phenotypes were followed up in 41 patients. We prioritized the candidate genes, and followed up 31 variants in this prioritized subset of candidate genes.RESULTS: Twenty-nine genotypes in known genes for EE (19) or related diseases (10), dominant as well as recessive or X-linked, were classified as likely pathogenic variants. Among those, likely pathogenic de novo variants were found in EE genes that act dominantly, including the recently identified genes EEF1A2, KCNB1 and the X-linked gene IQSEC2. A de novo frameshift variant in candidate gene HNRNPU was the only de novo variant found among the followed-up candidate genes, and the patient's phenotype was similar to a few recent publications.CONCLUSION: Mutations in genes described in OMIM as, for example, intellectual disability gene can lead to phenotypes that get classified as EE in the clinic. We confirmed existing literature reports that de novo loss-of-function HNRNPUmutations lead to severe developmental delay and febrile seizures in the first year of life.
Databáze: OpenAIRE
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