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Genetic architectureof sporadicfrontotemporaldementia and overlapwith Alzheimer's andParkinson's diseases Raffaele FerrariYunpeng WangJana Vandrovcová2016 год

Genetic architecture of sporadic frontotemporal dementia and overlap with Alzheimer's and Parkinson's diseases
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Аннотация: Clinical, pathological and genetic overlap between sporadic frontotemporal dementia (FTD), Alzheimer's disease (AD) and Parkinson's disease (PD) has been suggested; however, the relationship between these disorders is still not well understood. Here we evaluated genetic overlap between FTD, AD and PD to assess shared pathobiology and identify novel genetic variants associated with increased risk for FTD.Summary statistics were obtained from the International FTD Genomics Consortium, International PD Genetics Consortium and International Genomics of AD Project (n>75 000 cases and controls). We used conjunction false discovery rate (FDR) to evaluate genetic pleiotropy and conditional FDR to identify novel FTD-associated SNPs. Relevant variants were further evaluated for expression quantitative loci.We observed SNPs within the HLA, MAPT and APOE regions jointly contributing to increased risk for FTD and AD or PD. By conditioning on polymorphisms associated with PD and AD, we found 11 loci associated with increased risk for FTD. Meta-analysis across two independent FTD cohorts revealed a genome-wide signal within the APOE region (rs6857, 3'-UTR=PVRL2, p=2.21×10-12), and a suggestive signal for rs1358071 within the MAPT region (intronic=CRHR1, p=4.91×10-7) with the effect allele tagging the H1 haplotype. Pleiotropic SNPs at the HLA and MAPT loci associated with expression changes in cis-genes supporting involvement of intracellular vesicular trafficking, immune response and endo/lysosomal processes.Our findings demonstrate genetic pleiotropy in these neurodegenerative diseases and indicate that sporadic FTD is a polygenic disorder where multiple pleiotropic loci with small effects contribute to increased disease risk.
Год издания: 2016
Авторы: Raffaele Ferrari, Yunpeng Wang, Jana Vandrovcová, Sebastian Guelfi, Aree Witeolar, Celeste M. Karch, Andrew J. Schork, Chun Fan, James B. Brewer, Parastoo Momeni, Gerard D. Schellenberg, William P. Dillon, Leo P. Sugrue, Christopher P. Hess, Jennifer S. Yokoyama, Luke W. Bonham, Gil D. Rabinovici, Bruce L Miller, Ole A. Andreassen, Anders M. Dale, John Hardy, Rahul S. Desikan
Издательство: BMJ
Источник: Journal of Neurology Neurosurgery & Psychiatry
Ключевые слова: Amyotrophic Lateral Sclerosis Research, Alzheimer's disease research and treatments, Neurological diseases and metabolism
Другие ссылки: Journal of Neurology Neurosurgery & Psychiatry (HTML)
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