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. 2024 Jul 11;111(7):1316-1329.
doi: 10.1016/j.ajhg.2024.05.017. Epub 2024 Jun 17.

Genome-wide analyses reveal a potential role for the MAPT, MOBP, and APOE loci in sporadic frontotemporal dementia

Claudia Manzoni  1 Demis A Kia  2 Raffaele Ferrari  2 Ganna Leonenko  3 Beatrice Costa  2 Valentina Saba  4 Edwin Jabbari  2 Manuela Mx Tan  5 Diego Albani  6 Victoria Alvarez  7 Ignacio Alvarez  8 Ole A Andreassen  9 Antonella Angiolillo  10 Andrea Arighi  11 Matt Baker  12 Luisa Benussi  13 Valentina Bessi  14 Giuliano Binetti  15 Daniel J Blackburn  16 Merce Boada  17 Bradley F Boeve  18 Sergi Borrego-Ecija  19 Barbara Borroni  20 Geir Bråthen  21 William S Brooks  22 Amalia C Bruni  23 Paola Caroppo  24 Sara Bandres-Ciga  25 Jordi Clarimon  26 Rosanna Colao  23 Carlos Cruchaga  27 Adrian Danek  28 Sterre Cm de Boer  29 Itziar de Rojas  17 Alfonso di Costanzo  10 Dennis W Dickson  12 Janine Diehl-Schmid  30 Carol Dobson-Stone  31 Oriol Dols-Icardo  32 Aldo Donizetti  33 Elise Dopper  34 Elisabetta Durante  35 Camilla Ferrari  14 Gianluigi Forloni  6 Francesca Frangipane  23 Laura Fratiglioni  36 Milica G Kramberger  37 Daniela Galimberti  38 Maurizio Gallucci  39 Pablo García-González  17 Roberta Ghidoni  13 Giorgio Giaccone  24 Caroline Graff  40 Neill R Graff-Radford  41 Jordan Grafman  42 Glenda M Halliday  31 Dena G Hernandez  43 Lena E Hjermind  44 John R Hodges  45 Guy Holloway  46 Edward D Huey  47 Ignacio Illán-Gala  32 Keith A Josephs  18 David S Knopman  18 Mark Kristiansen  48 John B Kwok  31 Isabelle Leber  49 Hampton L Leonard  50 Ilenia Libri  20 Alberto Lleo  32 Ian R Mackenzie  51 Gaganjit K Madhan  48 Raffaele Maletta  23 Marta Marquié  17 Ales Maver  52 Manuel Menendez-Gonzalez  53 Graziella Milan  54 Bruce L Miller  55 Christopher M Morris  56 Huw R Morris  2 Benedetta Nacmias  57 Judith Newton  46 Jørgen E Nielsen  44 Christer Nilsson  58 Valeria Novelli  59 Alessandro Padovani  20 Suvankar Pal  46 Florence Pasquier  60 Pau Pastor  61 Robert Perneczky  62 Borut Peterlin  52 Ronald C Petersen  18 Olivier Piguet  63 Yolande Al Pijnenburg  64 Annibale A Puca  65 Rosa Rademakers  66 Innocenzo Rainero  67 Lianne M Reus  68 Anna Mt Richardson  69 Matthias Riemenschneider  70 Ekaterina Rogaeva  71 Boris Rogelj  72 Sara Rollinson  73 Howard Rosen  74 Giacomina Rossi  24 James B Rowe  75 Elisa Rubino  67 Agustin Ruiz  17 Erika Salvi  76 Raquel Sanchez-Valle  19 Sigrid Botne Sando  21 Alexander F Santillo  77 Jennifer A Saxon  69 Johannes Cm Schlachetzki  78 Sonja W Scholz  79 Harro Seelaar  34 William W Seeley  74 Maria Serpente  11 Sandro Sorbi  57 Sabrina Sordon  70 Peter St George-Hyslop  80 Jennifer C Thompson  81 Christine Van Broeckhoven  82 Vivianna M Van Deerlin  83 Sven J Van der Lee  84 John Van Swieten  34 Fabrizio Tagliavini  24 Julie van der Zee  82 Arianna Veronesi  35 Emilia Vitale  85 Maria Landqvist Waldo  86 Jennifer S Yokoyama  87 Mike A Nalls  88 Parastoo Momeni  89 Andrew B Singleton  90 John Hardy  91 Valentina Escott-Price  92
Affiliations

Genome-wide analyses reveal a potential role for the MAPT, MOBP, and APOE loci in sporadic frontotemporal dementia

Claudia Manzoni et al. Am J Hum Genet. .

Abstract

Frontotemporal dementia (FTD) is the second most common cause of early-onset dementia after Alzheimer disease (AD). Efforts in the field mainly focus on familial forms of disease (fFTDs), while studies of the genetic etiology of sporadic FTD (sFTD) have been less common. In the current work, we analyzed 4,685 sFTD cases and 15,308 controls looking for common genetic determinants for sFTD. We found a cluster of variants at the MAPT (rs199443; p = 2.5 × 10-12, OR = 1.27) and APOE (rs6857; p = 1.31 × 10-12, OR = 1.27) loci and a candidate locus on chromosome 3 (rs1009966; p = 2.41 × 10-8, OR = 1.16) in the intergenic region between RPSA and MOBP, contributing to increased risk for sFTD through effects on expression and/or splicing in brain cortex of functionally relevant in-cis genes at the MAPT and RPSA-MOBP loci. The association with the MAPT (H1c clade) and RPSA-MOBP loci may suggest common genetic pleiotropy across FTD and progressive supranuclear palsy (PSP) (MAPT and RPSA-MOBP loci) and across FTD, AD, Parkinson disease (PD), and cortico-basal degeneration (CBD) (MAPT locus). Our data also suggest population specificity of the risk signals, with MAPT and APOE loci associations mainly driven by Central/Nordic and Mediterranean Europeans, respectively. This study lays the foundations for future work aimed at further characterizing population-specific features of potential FTD-discriminant APOE haplotype(s) and the functional involvement and contribution of the MAPT H1c haplotype and RPSA-MOBP loci to pathogenesis of sporadic forms of FTD in brain cortex.

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Conflict of interest statement

Declaration of interests O.A.A. has received speakers’ honoraria from Janssen, Lundbeck, and Sunovion and is a consultant to Cortechs.ai. C.C. received research support from GSK and EISAI. The funders of the study had no role in the collection, analysis, or interpretation of data; in the writing of the report; or in the decision to submit the paper for publication. C.C. is a member of the advisory board of Vivid Genomics and Circular Genomics. M.A.N. and H.L.L. hold part of a competitive contract awarded to Data Tecnica International LLC by the National Institutes of Health to support open science research. M.A.N. currently serves on the scientific advisory board for Character Bio Inc. and Neuron23 Inc. I.R.M. receives license royalties for patent related to PGRN therapy and is a member of the scientific advisory committee for Prevail Therapeutics. H.R.M. is employed by UCL. In the last 12 months he reports paid consultancy from Roche, Aprinoia, AI Therapeutics, and Amylyx; lecture fees/honoraria from BMJ, Kyowa Kirin, and Movement Disorders Society; and research grants from Parkinson’s UK, Cure Parkinson’s Trust, PSP Association, Medical Research Council, and the Michael J. Fox Foundation. H.R.M. is a co-applicant on a patent application related to C9ORF72—Method for diagnosing a neurodegenerative disease (PCT/GB2012/052140). R.P. has received honoraria for advisory boards and speaker engagements from Roche, EISAI, Eli Lilly, Biogen, Janssen-Cilag, Astra Zeneca, Schwabe, Grifols, Novo Nordisk, and Tabuk. R.S.-V. served in advisory board meetings for Wave Life Sciences, Ionis, and Novo Nordisk; has received personal fees for participating in educational activities from Janssen, Roche Diagnostics, and Neuraxpharm; and has received funding to her institution for research projects from Biogen and Sage Pharmaceuticals. S.W.S. received research support from Cerevel Therapeutics and is a member of the scientific advisory board of the Lewy Body Dementia Association and the Multiple System Atrophy Coalition. J.S.Y. serves on the scientific advisory board for the Epstein Family Alzheimer’s Research Collaboration. J.H. does consulting and gives talks for Eli-Lilly, Roche, and Eisai and is on the Ceracuity advisory board.

Figures

Figure 1
Figure 1
QC pipeline for the three cohorts contributing to discovery and replication The discovery and replication sets were further subdivided into Central/Nordic and Mediterranean Europeans (PCA-based genetically estimated ancestry) to assess potential population-specific disease risk loci.
Figure 2
Figure 2
Discovery phase: Manhattan plot Red arrows identify genome-wide-significant signals (chromosomes 17 and 19); yellow arrows identify suggestive towers (10−8 < p > 10−5) including at least 20 markers (chromosomes 3 and 9). The plot is cut at −log10(p) = 1. The gene symbols represent the locus and do not necessarily imply functional/biological relevance.
Figure 3
Figure 3
Manhattan plot for discovery-phase Central/Nordic European cohort Red arrow indicates the genome-wide significant signal (chromosome 17). The plot is cut at −log10(p) = 1. The gene symbols represent the locus and do not necessarily imply functional/biological relevance.
Figure 4
Figure 4
Risk allele frequencies of top marker (rs6857) at the chromosome 19 locus in the Central/Nordic and Mediterranean European discovery cohorts Uncorrected p values calculated via χ2 are reported; association p values (ap) are reported for the case-control comparisons.

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