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Almeida LS, Pereira C, Aanicai R, Schröder S, Bochinski T, Kaune A, Urzi A, Spohr TCLS, Viceconte N, Oppermann S, Alasel M, Ebadat S, Iftikhar S, Jasinge E, Elsayed SM, Tomoum H, Marzouk I, Jalan AB, Cerkauskaite A, Cerkauskiene R, Tkemaladze T, Nadeem AM, El Din Mahmoud IG, Mossad FA, Kamel M, Selim LA, Cheema HA, Paknia O, Cozma C, Juaristi-Manrique C, Guatibonza-Moreno P, Böttcher T, Vogel F, Pinto-Basto J, Bertoli-Avella A, Bauer P. An integrated multiomic approach as an excellent tool for the diagnosis of metabolic diseases: our first 3720 patients. Eur J Hum Genet 2022; 30:1029-1035. [PMID: 35614200 PMCID: PMC9437014 DOI: 10.1038/s41431-022-01119-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 04/11/2022] [Accepted: 05/05/2022] [Indexed: 11/09/2022] Open
Abstract
To present our experience using a multiomic approach, which integrates genetic and biochemical testing as a first-line diagnostic tool for patients with inherited metabolic disorders (IMDs). A cohort of 3720 patients from 62 countries was tested using a panel including 206 genes with single nucleotide and copy number variant (SNV/CNV) detection, followed by semi-automatic variant filtering and reflex biochemical testing (25 assays). In 1389 patients (37%), a genetic diagnosis was achieved. Within this cohort, the highest diagnostic yield was obtained for patients from Asia (57.5%, mainly from Pakistan). Overall, 701 pathogenic/likely pathogenic unique SNVs and 40 CNVs were identified. In 620 patients, the result of the biochemical tests guided variant classification and reporting. Top five diagnosed diseases were: Gaucher disease, Niemann-Pick disease type A/B, phenylketonuria, mucopolysaccharidosis type I, and Wilson disease. We show that integrated genetic and biochemical testing facilitated the decision on clinical relevance of the variants and led to a high diagnostic yield (37%), which is comparable to exome/genome sequencing. More importantly, up to 43% of these patients (n = 610) could benefit from medical treatments (e.g., enzyme replacement therapy). This multiomic approach constitutes a unique and highly effective tool for the genetic diagnosis of IMDs.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Solaf M Elsayed
- Medical Genetics Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Hoda Tomoum
- Department of Pediatrics, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Iman Marzouk
- Alexandria University Children Hospital, Alexandria, Egypt
| | - Anil B Jalan
- Navi Mumbai Institute of Research In Mental And Neurological Handicap (NIRMAN) / Pediatric Geneticist, Navi Mumbai, India
| | | | | | - Tinatin Tkemaladze
- Department of Molecular and Medical Genetics, Tbilisi State Medical University, Tbilisi, Georgia
| | - Anjum Muhammad Nadeem
- Pediatric Gastroenterology, Hepatology and Nutrition, the Children's Hospital and Institute of Child Health, Lahore, Pakistan
| | - Iman Gamal El Din Mahmoud
- Cairo University Children Hospital (Abu El Reesh Children's Hospital), Metabolic, Neurology, Cairo, Egypt
| | - Fawzia Amer Mossad
- Cairo University Children Hospital (Abu El Reesh Children's Hospital), Metabolic, Neurology, Cairo, Egypt
| | - Mona Kamel
- Cairo University Children Hospital (Abu El Reesh Children's Hospital), Metabolic, Neurology, Cairo, Egypt
| | - Laila Abdel Selim
- Cairo University Children Hospital (Abu El Reesh Children's Hospital), Metabolic, Neurology, Cairo, Egypt
| | - Huma Arshad Cheema
- Pediatric Gastroenterology, Hepatology and Nutrition, the Children's Hospital and Institute of Child Health, Lahore, Pakistan
| | | | | | | | | | | | | | | | | | - Peter Bauer
- CENTOGENE GmbH, 18055, Rostock, Germany.,Department of Oncology, University Medical Center Rostock, Rostock, Germany
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