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Consensus statement on standards and guidelines for the molecular diagnostics of Alport syndrome: refining the ACMG criteria

J. Savige, H. Storey, E. Watson, JM. Hertz, C. Deltas, A. Renieri, F. Mari, P. Hilbert, P. Plevova, P. Byers, A. Cerkauskaite, M. Gregory, R. Cerkauskiene, DG. Ljubanovic, F. Becherucci, C. Errichiello, L. Massella, V. Aiello, R. Lennon, L....

. 2021 ; 29 (8) : 1186-1197. [pub] 20210415

Jazyk angličtina Země Velká Británie

Typ dokumentu časopisecké články

Perzistentní odkaz   https://www.medvik.cz/link/bmc22012312
E-zdroje Online Plný text

NLK Free Medical Journals od 2009
PubMed Central od 2009 do Před 1 rokem
Europe PubMed Central od 2009 do Před 1 rokem
ProQuest Central od 2000-01-01 do Před 1 rokem
Open Access Digital Library od 1998-01-01
Health & Medicine (ProQuest) od 2000-01-01 do Před 1 rokem

The recent Chandos House meeting of the Alport Variant Collaborative extended the indications for screening for pathogenic variants in the COL4A5, COL4A3 and COL4A4 genes beyond the classical Alport phenotype (haematuria, renal failure; family history of haematuria or renal failure) to include persistent proteinuria, steroid-resistant nephrotic syndrome, focal and segmental glomerulosclerosis (FSGS), familial IgA glomerulonephritis and end-stage kidney failure without an obvious cause. The meeting refined the ACMG criteria for variant assessment for the Alport genes (COL4A3-5). It identified 'mutational hotspots' (PM1) in the collagen IV α5, α3 and α4 chains including position 1 Glycine residues in the Gly-X-Y repeats in the intermediate collagenous domains; and Cysteine residues in the carboxy non-collagenous domain (PP3). It considered that 'well-established' functional assays (PS3, BS3) were still mainly research tools but sequencing and minigene assays were commonly used to confirm splicing variants. It was not possible to define the Minor Allele Frequency (MAF) threshold above which variants were considered Benign (BA1, BS1), because of the different modes of inheritances of Alport syndrome, and the occurrence of hypomorphic variants (often Glycine adjacent to a non-collagenous interruption) and local founder effects. Heterozygous COL4A3 and COL4A4 variants were common 'incidental' findings also present in normal reference databases. The recognition and interpretation of hypomorphic variants in the COL4A3-COL4A5 genes remains a challenge.

Alport UK Gloucester UK

Birmingham Children's Hospital Birmingham UK

Bristol Genetics Laboratory Pathology Sciences Southmead Hospital Bristol UK

Bristol Renal Unit Bristol Medical School University of Bristol Bristol UK

Center for Human Genetics University Hospitals and KU Leuven Leuven Belgium

Center of Excellence in Biobanking and Biomedical Research and Molecule Medicine Center University of Cyprus Nicosia Cyprus

Centre for Nephrology and Metabolic Disorders Weisswasser Germany

Centre for Rare Diseases and Clinical Genetics Unit Medical University of Gdansk Gdansk Poland

Clinic of Pediatrics Institute of Clinical Medicine Faculty of Medicine Vilnius University Vilnius Lithuania

Department of Biology School of Medicine University of Zagreb Zagreb Croatia

Department of Clinical Genetics Maastricht University Medical Center Maastricht The Netherlands

Department of Experimental Diagnostic and Specialty Medicine Nephrology Dialysis and Renal Transplant Unit S Orsola Hospital University of Bologna Bologna Italy

Department of Medical Genetics and Department of Biomedical Sciences University Hospital of Ostrava Ostrava Czech Republic

Department of Medicine The University of Melbourne Parkville VIC Australia

Department of Nephrology and Renal Transplantation University Hospitals Leuven Leuven Belgium

Department of Pathology University of Zagreb School of Medicine Dubrava University Hospital Zagreb Croatia

Department of Physiology Radboud Institute for Molecular Life Sciences Radboud University Medical Center Nijmegen The Netherlands

Departments of Genetics and Center for Molecular Medicine University Medical Center Utrecht University Utrecht The Netherlands

Departments of Pathology and Medicine University of Washington Seattle WA USA

Division of Nephrology and Dialysis Bambino Gesù Children's Hospital IRCCS Rome Italy

Division of Nephrology and Dialysis University Hospital of Verona Verona Italy

Division of Nephrology Department of Medicine University of Utah Health Salt Lake City UT USA

Elizabeth Watson South West Genomic Laboratory Hub North Bristol Trust Bristol UK

Fundeni Clinical Institute Pediatric Nephrology Department Bucharest Romania

Health Sciences Centre University of UTAH Salt Lake City UT USA

Inherited Kidney Disorders Fundacio Puigvert Universitat Autonoma de Barcelona Barcelona Spain

Institute de Pathologie et de Genetique ASBL Departement de Biologie Moleculaire Gosselies Belgium

Institute of Biomedical Sciences Faculty of Medicine Vilnius University Vilnius Lithuania

Institute of Human Genetics Technical University of Munich München Germany

Jens Michael Hertz Department of Clinical Genetics Odense University Hospital Odense Denmark

Medical Genetics Unit Department of Clinical and Experimental Biomedical Sciences Mario Serio University of Florence Florence Italy

Medical Genetics Unit Meyer Children's University Hospital Florence Italy

Medical Genetics University of Siena Siena Italy

Molecular Genetics Viapath Laboratories Guy's Hospital London UK

Nephrology Unit and Meyer Children's University Hospital Firenze Italy

Nephrology Unit University of Campania Naples Italy

North East Thames Regional Genetics Laboratory Great Ormond Street Hospital London UK

School of Immunology and Microbial Sciences Faculty of Life Sciences King's College London London UK

Wellcome Centre for Cell Matrix Research Division of Cell Matrix Biology and Regenerative Medicine School of Biological Sciences Faculty of Biology Medicine and Health The University of Manchester Manchester UK

Citace poskytuje Crossref.org

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