基因组测序用于诊断罕见疾病
Monica H Wojcik1, Gabrielle Lemire1, Eva Berger1
1From the Division of Newborn Medicine (M.H.W., P.B.A.), the Manton Center for Orphan Disease Research (M.H.W., W.W., S.L.S., J.A.M., J.L., C.A.G., H.T.G., A.H.B., P.B.A., A.O.-L.), Division of Genetics and Genomics (M.H.W., G.L., S.L.S., L.P., E.G., H.T.G., V.S.G., A.H.B., P.B.A., A.O.-L.), Department of Pediatrics (S. Shril, R.S., F.H., W.K.C.), and the Division of Hematology and Oncology (M.W., J.M.V., V.G.S., L.D.C.), Boston Children's Hospital, Harvard Medical School, the Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School (M.W., J.M.V., V.G.S., L.D.C.), the Center for Genomic Medicine (A.S.-J., J.G., J.M.F., H.B., M.T., C.A.-T., H.L.R., A.O.-L.) and the Pediatric Surgical Research Laboratories (H.B.), Massachusetts General Hospital, the Department of Neurology, Harvard Medical School (A.S.-J., V.S.G., J.M.F., H.B., M.T.), the Ocular Genomics Institute, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School (E.A.P., E.M.P., K.M.B.), and the Department of Neurology, Brigham and Women's Hospital (V.S.G.), Boston, the Broad Center for Mendelian Genomics (M.H.W., G.L., B.W., G.E.V., S.L.S., H.S., M.S.-B., E.G.S., A.S.-J., K.A.R., L.P., I.O.-O., M.O., E.O., B.E.M., D.M., A.L., E.G., J.G., V.S.G., J.M.F., E. Evangelista, E. England, S. DiTroia, K.R.C., H.B., A.H.B., S.M.B., M.T., C.A.-T., H.L.R., A.O.-L.), Program in Medical and Population Genetics (M.W., J.M.V., V.G.S., L.D.C., A.H.B., P.B.A.), and the Stanley Center for Psychiatric Research (M.T.), Broad Institute of MIT and Harvard, and the Harvard Stem Cell Institute (V.G.S., L.D.C.), Cambridge - all in Massachusetts; the Institute of Human Genetics, University of Leipzig Medical Center (E.B., V. Strehlow, M.R., D.P., K.P., H.O., J.H., T.B., R.A.J.), and the Division of Neuropediatrics, Hospital for Children and Adolescents, University Hospital Leipzig (A.M., J.G.-A.), Leipzig, the Institute of Human Genetics, Medical Faculty and University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf (D.W.), Heidelberg University, Medical Faculty of Heidelberg, Center for Child and Adolescent Medicine, Division of Pediatric Epileptology, Heidelberg (S. Syrbe), and the Department of Epileptology, Krankenhaus Mara, Bethel Epilepsy Center, Medical School OWL, Bielefeld University, Bielefeld (T.P.) - all in Germany; the Clinical Genetics Department, Human Genetics and Genome Research Institute, National Research Center, Cairo (M.S.Z.); the Victorian Clinical Genetics Service (S.M.W., T.Y.T., L.G., J.C.), the Centre for Population Genomics (D.M.), and the Brain and Mitochondrial Research Group (J.C.), Murdoch Children's Research Institute, Parkville, VIC, the Department of Paediatrics, University of Melbourne, Melbourne (S.M.W., T.Y.T., L.G., J.C.), the Kids Neuroscience Centre, Kids Research, Children's Hospital at Westmead (L.B.W., R.G.M., S.T.C., S.J.B.), the Discipline of Child and Adolescent Health, Faculty of Medicine and Health, University of Sydney (L.B.W., R.G.M., S.T.C., S.J.B.), and Functional Neuromics, Children's Medical Research Institute (R.G.M., S.T.C., S.J.B.), Westmead, NSW, the Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, WA (G.R., N.L.), the Centre for Population Genomics, Garvan Institute of Medical Research, Sydney (D.M.), and the Department of Neurology, Central Adelaide Local Health Network/Royal Adelaide Hospital, Adelaide Medical School, University of Adelaide, and the Department of Genetics and Molecular Pathology, SA Pathology, Adelaide, SA (R.G.) - all in Australia; the John Walton Muscular Dystrophy Research Centre, Translational and Clinical Research Institute, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom (A.T., V. Straub); the Fred A. Litwin Family Centre in Genetic Medicine, University Health Network (J.S., C.F.M.), the Department of Molecular Genetics (J.S.), the Faculty of Medicine (C.F.M.), and the Department of Laboratory Medicine and Pathobiology (J.P.L.-E.), University of Toronto, and Pathology and Laboratory Medicine and the Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Sinai Health (J.P.L.-E.) - all in Toronto; the Department of Clinical Genetics, Genetics and Personalized Medicine Clinic, Tartu University Hospital, and the Department of Genetics and Personalized Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia (K.R., S.P., K.Õ., K.T.O.); Molecular Diagnostics, New York Genome Center (V.O.), and the Department of Pathology and Cell Biology, Columbia University Irving Medical Center (M.G.) - both in New York; the Department of Neurosciences, University of California, San Diego, La Jolla, and Rady Children's Institute for Genomic Medicine, San Diego - both in California (J.G.G.); and the Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD (S. Donkervoort, C.G.B.).
基因组测序显著改善罕见疾病的诊断,识别遗传变异错过了外基因组测序. 这种先进的基因测试为以前未被诊断的病例提供了大约8%的诊断收益率.
科学领域:
- 基因组学就是基因组学.
- 罕见疾病 罕见疾病
- 遗传诊断 遗传诊断 遗传诊断 是一个
背景情况:
- 尽管进行了广泛的基因测试,如外基因测序,但罕见的单一性疾病往往仍未被诊断出来.
- 在先前的负面遗传评估后,全基因组测序 (WGS) 的诊断实用性尚未得到充分证实.
研究的目的:
- 评估在以前有负遗传检测结果的罕见单基因疾病的家庭中全基因组测序 (WGS) 的诊断产量.
- 为了确定WGS可以检测到的基因变异类型,而它们被外体序列测序遗漏.
主要方法:
- 进行了对822个怀疑罕见单基因疾病和未诊断的表型的家庭进行全基因组测序.
- 分析了来自744个家庭的初始队列和78个家庭的复制队列的数据.
- 之前的外体序列数据被重新分析,并应用了额外的分析方法.
主要成果:
- 在初始队列 (218/744 个家庭) 的29.3%中实现了分子诊断.
- 基因组测序对于在初始队列的8.2%中识别致病变体至关重要,包括复杂的重组和重复扩张,而不是外基因组测序.
- 对外体数据的重新分析或应用额外的方法在63.5%的确诊病例中发现了变异.
结论:
- 全基因组测序在以前通过其他方法测试的罕见疾病患者中提供了大约8%的显著诊断产量.
- WGS识别了多样化的致病变体,包括结构变体和重复扩张,无法通过外基因组测序检测到.
- 这些发现支持WGS在诊断罕见遗传疾病方面的临床实用性.
相关概念视频
Next-generation Sequencing
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features....
Genome-wide Association Studies-GWAS
GWAS does not require the identification of the target gene involved in...
Sanger Sequencing
RNA-seq
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while...
Genomics


