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Bras J, Guerreiro R, Darwent L, Parkkinen L, Ansorge O, Escott-Price V, Hernandez DG, Nalls MA, Clark LN, Honig LS, Marder K, Van Der Flier WM, Lemstra A, Scheltens P, Rogaeva E, St George-Hyslop P, Londos E, Zetterberg H, Ortega-Cubero S, Pastor P, Ferman TJ, Graff-Radford NR, Ross OA, Barber I, Braae A, Brown K, Morgan K, Maetzler W, Berg D, Troakes C, Al-Sarraj S, Lashley T, Compta Y, Revesz T, Lees A, Cairns N, Halliday GM, Mann D, Pickering-Brown S, Dickson DW, Singleton A, Hardy J. Genetic analysis implicates APOE, SNCA and suggests lysosomal dysfunction in the etiology of dementia with Lewy bodies. Hum Mol Genet 2014; 23:6139-46. [PMID: 24973356 PMCID: PMC4222357 DOI: 10.1093/hmg/ddu334] [Citation(s) in RCA: 158] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Revised: 05/15/2014] [Accepted: 06/24/2014] [Indexed: 01/28/2023] Open
Abstract
Clinical and neuropathological similarities between dementia with Lewy bodies (DLB), Parkinson's and Alzheimer's diseases (PD and AD, respectively) suggest that these disorders may share etiology. To test this hypothesis, we have performed an association study of 54 genomic regions, previously implicated in PD or AD, in a large cohort of DLB cases and controls. The cohort comprised 788 DLB cases and 2624 controls. To minimize the issue of potential misdiagnosis, we have also performed the analysis including only neuropathologically proven DLB cases (667 cases). The results show that the APOE is a strong genetic risk factor for DLB, confirming previous findings, and that the SNCA and SCARB2 loci are also associated after a study-wise Bonferroni correction, although these have a different association profile than the associations reported for the same loci in PD. We have previously shown that the p.N370S variant in GBA is associated with DLB, which, together with the findings at the SCARB2 locus, suggests a role for lysosomal dysfunction in this disease. These results indicate that DLB has a unique genetic risk profile when compared with the two most common neurodegenerative diseases and that the lysosome may play an important role in the etiology of this disorder. We make all these data available.
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Affiliation(s)
- Jose Bras
- Department of Molecular Neuroscience,
| | | | | | - Laura Parkkinen
- Nuffield Department of Clinical Neurosciences, Oxford Parkinson's Disease Centre, University of Oxford, Oxford, UK
| | - Olaf Ansorge
- Nuffield Department of Clinical Neurosciences, Oxford Parkinson's Disease Centre, University of Oxford, Oxford, UK
| | - Valentina Escott-Price
- MRC Centre for Neuropsychiatric Genetics and Genomics, School of Medicine, Cardiff University, Cardiff, UK
| | - Dena G Hernandez
- Laboratory of Neurogenetics, National Institutes on Aging, NIH, Bethesda, USA
| | - Michael A Nalls
- Laboratory of Neurogenetics, National Institutes on Aging, NIH, Bethesda, USA
| | - Lorraine N Clark
- Taub Institute for Alzheimer Disease and the Aging Brain, Department of Pathology and Cell Biology, and
| | - Lawrence S Honig
- Taub Institute for Alzheimer Disease and the Aging Brain, Department of Neurology, Columbia University, New York, NY, USA
| | - Karen Marder
- Taub Institute for Alzheimer Disease and the Aging Brain, Department of Neurology, Columbia University, New York, NY, USA
| | - Wiesje M Van Der Flier
- Department of Neurology and Alzheimer Center, Neuroscience Campus Amsterdam, VU University Medical Center, Amsterdam, the Netherlands
| | - Afina Lemstra
- Department of Neurology and Alzheimer Center, Neuroscience Campus Amsterdam, VU University Medical Center, Amsterdam, the Netherlands
| | - Philip Scheltens
- Department of Neurology and Alzheimer Center, Neuroscience Campus Amsterdam, VU University Medical Center, Amsterdam, the Netherlands
| | - Ekaterina Rogaeva
- Department of Medicine, Tanz Centre for Research in Neurodegenerative Diseases, University of Toronto, Toronto, Ontario, Canada
| | - Peter St George-Hyslop
- Department of Medicine, Tanz Centre for Research in Neurodegenerative Diseases, University of Toronto, Toronto, Ontario, Canada, Cambridge Institute for Medical Research, and Cambridge National Institute of Health Research Biomedical Research Unit in Dementia, University of Cambridge, Cambridge CB2 0XY, UK
| | - Elisabet Londos
- Clinical Memory Research Unit, Institute Clinical Sciences Malmö, Lund University, Sweden
| | - Henrik Zetterberg
- Department of Molecular Neuroscience, Clinical Neurochemistry Laboratory, Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden
| | - Sara Ortega-Cubero
- Neurogenetics Laboratory, Division of Neurosciences, Center for Applied Medical Research, University of Navarra, Pamplona, Spain, Department of Neurology, Clínica Universidad de Navarra, University of Navarra School of Medicine, Pamplona, Spain, CIBERNED, Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas, Instituto de Salud Carlos III, Madrid, Spain
| | - Pau Pastor
- Neurogenetics Laboratory, Division of Neurosciences, Center for Applied Medical Research, University of Navarra, Pamplona, Spain, Department of Neurology, Clínica Universidad de Navarra, University of Navarra School of Medicine, Pamplona, Spain, CIBERNED, Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas, Instituto de Salud Carlos III, Madrid, Spain
| | | | | | - Owen A Ross
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
| | - Imelda Barber
- Translation Cell Sciences - Human Genetics, School of Life Sciences, Queens Medical Centre, University of Nottingham, Nottingham, UK
| | - Anne Braae
- Translation Cell Sciences - Human Genetics, School of Life Sciences, Queens Medical Centre, University of Nottingham, Nottingham, UK
| | - Kristelle Brown
- Translation Cell Sciences - Human Genetics, School of Life Sciences, Queens Medical Centre, University of Nottingham, Nottingham, UK
| | - Kevin Morgan
- Translation Cell Sciences - Human Genetics, School of Life Sciences, Queens Medical Centre, University of Nottingham, Nottingham, UK
| | - Walter Maetzler
- Hertie Institute for Clinical Brain Research, Department of Neurodegeneration, Center of Neurology, University of Tuebingen, and DZNE, German Center for Neurodegenerative Diseases, Tuebingen, Germany
| | - Daniela Berg
- Hertie Institute for Clinical Brain Research, Department of Neurodegeneration, Center of Neurology, University of Tuebingen, and DZNE, German Center for Neurodegenerative Diseases, Tuebingen, Germany
| | - Claire Troakes
- MRC London Neurodegenerative Diseases Brain Bank, Department of Clinical Neuroscience, King's College London, Institute of Psychiatry, London, UK
| | - Safa Al-Sarraj
- MRC London Neurodegenerative Diseases Brain Bank, Department of Clinical Neuroscience, King's College London, Institute of Psychiatry, London, UK
| | - Tammaryn Lashley
- Queen Square Brain Bank, Department of Molecular Neuroscience, and
| | - Yaroslau Compta
- Queen Square Brain Bank, Department of Molecular Neuroscience, and Parkinson's disease and Movement Disorders Unit, Neurology Service, IDIBAPS, CIBERNED, Hospital Clínic, Barcelona, Catalonia, Spain
| | - Tamas Revesz
- Queen Square Brain Bank, Department of Molecular Neuroscience, and
| | - Andrew Lees
- Queen Square Brain Bank, Department of Molecular Neuroscience, and
| | - Nigel Cairns
- Knight Alzheimer's Disease Research Center and Department of Neurology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Glenda M Halliday
- Neuroscience Research Australia, Sydney, Australia, School of Medical Sciences, Faculty of Medicine, University of New South Wales, Sydney, Australia
| | - David Mann
- Institute of Brain, Behaviour and Mental Health, Faculty of Medical and Human Sciences, University of Manchester, Manchester, UK and
| | - Stuart Pickering-Brown
- Institute of Brain, Behaviour and Mental Health, Faculty of Medical and Human Sciences, University of Manchester, Manchester, UK and
| | | | - Andrew Singleton
- Laboratory of Neurogenetics, National Institutes on Aging, NIH, Bethesda, USA
| | - John Hardy
- Reta Lila Weston Research Laboratories, Department of Molecular Neuroscience, UCL Institute of Neurology, London WC1N 3BG, UK
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Jicha GA, Abner EL, Schmitt FA, Kryscio RJ, Riley KP, Cooper GE, Stiles N, Mendiondo MS, Smith CD, Van Eldik LJ, Nelson PT. Preclinical AD Workgroup staging: pathological correlates and potential challenges. Neurobiol Aging 2011; 33:622.e1-622.e16. [PMID: 21507528 DOI: 10.1016/j.neurobiolaging.2011.02.018] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2010] [Revised: 02/15/2011] [Accepted: 02/24/2011] [Indexed: 01/19/2023]
Abstract
The National Institute on Aging Preclinical Alzheimer's disease Workgroup (PADW) has issued a preliminary report with recommendations for classifying preclinical Alzheimer's disease (pAD) according to 3 early disease stages. Here we examine the PADW recommendations in relation to neuropathological features in a large, consecutive series of cognitively intact elderly persons, autopsied within a year after cognitive testing (n = 126 cognitively intact patients with mean age 83.7 years at death). Subjects were grouped based on a hypothetical construct correlating pathological features with PADW stages. Many cognitively intact individuals were classifiable as pAD (53/126 or 43%), as expected based on epidemiological and biomarker studies. Of these, most (48%) were in "stage 3", which corresponds to amyloid pathology with early neurodegeneration. As with prior studies, our data indicate that the development of neocortical neurofibrillary tangles is the key pathological event that is not observed in pAD cases: Braak stages III or IV pathology are hence not truly a substrate for "intermediate likelihood" that cognitive impairment is due to Alzheimer's disease (AD). We also stress the importance of comorbid non-Alzheimer's disease brain pathologies (hippocampal sclerosis, neocortical alpha-synucleinopathy, cerebrovascular disease, and brains with hippocampal neurofibrillary tangles but no cortical amyloid plaques) that can contribute to the development of cognitive impairment, or which may serve as confounds in the application of the PADW recommendations. While the final recommendations from the PADW working group have not yet been released, this preliminary analysis provides a perspective on those recommendations from a neuropathological point of view.
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Affiliation(s)
- Gregory A Jicha
- Neurology, University of Kentucky College of Medicine, Lexington, KY 40536, USA
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Caudle WM, Pan S, Shi M, Quinn T, Hoekstra J, Beyer RP, Montine TJ, Zhang J. Proteomic identification of proteins in the human brain: Towards a more comprehensive understanding of neurodegenerative disease. Proteomics Clin Appl 2008; 2:1484-97. [PMID: 21136796 DOI: 10.1002/prca.200800043] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2008] [Indexed: 12/21/2022]
Abstract
Proteomics has revealed itself as a powerful tool in the identification and determination of proteins and their biological significance. More recently, several groups have taken advantage of the high-throughput nature of proteomics in order to gain a more in-depth understanding of the human brain. In turn, this information has provided researchers with invaluable insight into the potential pathways and mechanisms involved in the pathogenesis of several neurodegenerative disorders, e.g., Alzheimer and Parkinson disease. Furthermore, these findings likely will improve methods to diagnose disease and monitor disease progression as well as generate novel targets for therapeutic intervention. Despite these advances, comprehensive understanding of the human brain proteome remains challenging, and requires development of improved sample enrichment, better instrumentation, and innovative analytic techniques. In this review, we will focus on the most recent progress related to identification of proteins in the human brain under normal as well as pathological conditions, mainly Alzheimer and Parkinson disease, their potential application in biomarker discovery, and discuss current advances in protein identification aimed at providing a more comprehensive understanding of the brain.
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Affiliation(s)
- W Michael Caudle
- Department of Pathology, University of Washington School of Medicine, Seattle, WA, USA
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