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. 2024 Jul 3;112(13):2142-2156.e5.
doi: 10.1016/j.neuron.2024.04.002. Epub 2024 May 2.

Genome sequence analyses identify novel risk loci for multiple system atrophy

Ruth Chia  1 Anindita Ray  2 Zalak Shah  2 Jinhui Ding  3 Paola Ruffo  4 Masashi Fujita  5 Vilas Menon  5 Sara Saez-Atienzar  1 Paolo Reho  2 Karri Kaivola  2 Ronald L Walton  6 Regina H Reynolds  7 Ramita Karra  1 Shaimaa Sait  2 Fulya Akcimen  1 Monica Diez-Fairen  8 Ignacio Alvarez  8 Alessandra Fanciulli  9 Nadia Stefanova  9 Klaus Seppi  9 Susanne Duerr  9 Fabian Leys  9 Florian Krismer  9 Victoria Sidoroff  9 Alexander Zimprich  10 Walter Pirker  11 Olivier Rascol  12 Alexandra Foubert-Samier  13 Wassilios G Meissner  14 François Tison  15 Anne Pavy-Le Traon  16 Maria Teresa Pellecchia  17 Paolo Barone  17 Maria Claudia Russillo  17 Juan Marín-Lahoz  18 Jaime Kulisevsky  19 Soraya Torres  20 Pablo Mir  21 Maria Teresa Periñán  22 Christos Proukakis  23 Viorica Chelban  24 Lesley Wu  25 Yee Y Goh  25 Laura Parkkinen  26 Michele T Hu  27 Christopher Kobylecki  28 Jennifer A Saxon  29 Sara Rollinson  30 Emily Garland  31 Italo Biaggioni  31 Irene Litvan  32 Ileana Rubio  32 Roy N Alcalay  33 Kimberly T Kwei  34 Steven J Lubbe  35 Qinwen Mao  36 Margaret E Flanagan  37 Rudolph J Castellani  38 Vikram Khurana  39 Alain Ndayisaba  40 Andrea Calvo  41 Gabriele Mora  42 Antonio Canosa  41 Gianluca Floris  43 Ryan C Bohannan  44 Anni Moore  3 Lucy Norcliffe-Kaufmann  45 Jose-Alberto Palma  45 Horacio Kaufmann  45 Changyoun Kim  46 Michiyo Iba  46 Eliezer Masliah  46 Ted M Dawson  47 Liana S Rosenthal  48 Alexander Pantelyat  48 Marilyn S Albert  48 Olga Pletnikova  49 Juan C Troncoso  50 Jon Infante  51 Carmen Lage  51 Pascual Sánchez-Juan  52 Geidy E Serrano  53 Thomas G Beach  53 Pau Pastor  54 Huw R Morris  55 Diego Albani  56 Jordi Clarimon  57 Gregor K Wenning  58 John A Hardy  59 Mina Ryten  60 Eric Topol  61 Ali Torkamani  61 Adriano Chiò  62 David A Bennett  63 Philip L De Jager  5 Philip A Low  64 Wolfgang Singer  64 William P Cheshire  65 Zbigniew K Wszolek  65 Dennis W Dickson  6 Bryan J Traynor  66 J Raphael Gibbs  3 Clifton L Dalgard  67 Owen A Ross  68 Henry Houlden  24 Sonja W Scholz  69
Affiliations

Genome sequence analyses identify novel risk loci for multiple system atrophy

Ruth Chia et al. Neuron. .

Abstract

Multiple system atrophy (MSA) is an adult-onset, sporadic synucleinopathy characterized by parkinsonism, cerebellar ataxia, and dysautonomia. The genetic architecture of MSA is poorly understood, and treatments are limited to supportive measures. Here, we performed a comprehensive analysis of whole genome sequence data from 888 European-ancestry MSA cases and 7,128 controls to systematically investigate the genetic underpinnings of this understudied neurodegenerative disease. We identified four significantly associated risk loci using a genome-wide association study approach. Transcriptome-wide association analyses prioritized USP38-DT, KCTD7, and lnc-KCTD7-2 as novel susceptibility genes for MSA within these loci, and single-nucleus RNA sequence analysis found that the associated variants acted as cis-expression quantitative trait loci for multiple genes across neuronal and glial cell types. In conclusion, this study highlights the role of genetic determinants in the pathogenesis of MSA, and the publicly available data from this study represent a valuable resource for investigating synucleinopathies.

Keywords: GWAS; MSA; TWAS; colocalization; gene-burden analysis; genome-wide association study; multiple system atrophy; pathway analysis; repeat expansion mapping; transcriptome-wide association study; whole genome sequencing.

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Conflict of interest statement

Declaration of interests T.G.B. is a consultant for Aprinoia Therapeutics, Vivid Genomics, and Avid Radiopharmaceutical and is a scientific advisory board member for Vivid Genomics. J.A.H., H.R.M., B.J.T., and H.R.M. hold US, EU, and Canadian patents on the clinical testing and therapeutic intervention for the hexanucleotide repeat expansion of C9orf72. B.J.T. and S.W.S. receive research support from Cerevel Therapeutics. B.J.T. is an editorial and advisory board member for Brain, eClinicalMedicine, Journal of Neurology, Neurosurgery, and Psychiatry, and Neurobiology of Aging. H.R.M. reports paid consultancy from Biogen, Biohaven, Lundbeck, UCB, and Denali as well as lecture fees and honoraria from the Wellcome Trust and the Movement Disorders Society. H.R.M. received research grants from Parkinson’s UK, Cure Parkinson’s Trust, PSP Association, CBD Solutions, the Drake Foundation, and the Medical Research Council. H.K. is editor-in-chief of Clinical Autonomic Research, serves as principal investigator (PI) of a clinical trial sponsored by Biogen MA Inc. (TRACK MSA, S19-01846), and received consultancy fees from Lilly USA LLC, Biohaven Pharmaceuticals Inc., Takeda Pharmaceutical Company Ltd., Ono Pharma UK Ltd., Lundbeck LLC, and Theravance Biopharma US Inc. A.F. reports royalties from Springer Verlag; speaker fees and honoraria from Theravance Biopharma, GE Health Care, Broadview Ventures, Austrian Autonomic Society, Stopp-HSP, and Elsevier; and research grants from the FWF-Austrian Science Fund, Medical University of Innsbruck, US MSA Coalition, Dr. Johannes and Hertha Tuba Foundation, and Austrian Exchange Program, outside of the present work. J.-A.P. is an editorial board member of Movement Disorders, Parkinsonism & Related Disorders, BMC Neurology, and Clinical Autonomic Research. I.B. received consultancy fees from Theravance Biopharma US Inc., Amenal Pharmaceutics, Regeneron Pharmaceuticals, Takeda Pharmaceuticals, and Neurawell Therapeutics. S.W.S. serves on the scientific advisory board of the Lewy Body Dementia Association and the Multiple System Atrophy Coalition. S.W.S. is an editorial board member for the Journal of Parkinson’s Disease and JAMA Neurology. A.P. serves on the board of directors for CurePSP, has received research grants from the National Institutes of Health and the Michael J. Fox Foundation, and has received consultancy fees from AbbVie Inc., Biogen Inc., SciNeuro Pharmaceuticals, Ono Pharma, and Ferrer Internacional, S.A. A.T. serves on the scientific advisory board for Vivid Genomics. R.H.R. is currently employed by CoSyne Therapeutics; all work performed for this publication was performed on her own time and not as a part of her duties as an employee. Z.K.W. is partially supported by the NIH/NIA and NIH/NINDS (1U19AG063911, FAIN: U19AG063911), the Mayo Clinic Center for Regenerative Medicine, the gifts from the Donald G. and Jodi P. Heeringa Family, the Haworth Family Professorship in Neurodegenerative Diseases fund, and the Albertson Parkinson's Research Foundation. He serves as PI or co-PI on Biohaven Pharmaceuticals Inc. (BHV4157-206) and Vigil Neuroscience Inc. (VGL101-01.002, VGL101-01.201, PET tracer development protocol, Csf1r biomarker and repository project, and ultra-high field MRI in the diagnosis and management of CSF1R-related adult-onset leukoencephalopathy with axonal spheroids and pigmented glia) projects/grants. He serves as co-PI of the Mayo Clinic APDA Center for Advanced Research, as an external advisory board member for Vigil Neuroscience Inc., and as a consultant on neurodegenerative medical research for Eli Lilli & Company. F.K. received personal fees from Institut de Recherches Internationales Servier, Takeda Pharmaceuticals, Sanofi, Teva, Vial, and the Austrian Society of Neurology in the past 12 months, and he has ongoing grant support from the Austrian Science Fund (FWF) and the National Institutes of Health outside of the submitted work. W.G.M. has received fees for editorial activities with Elsevier and has served as an advisor for Lundbeck, Biohaven, Roche, Alterity, Servier, Inhibikase, Takeda, and Teva.

Figures

Figure 1.
Figure 1.. Genome-wide and transcriptome-wide association study results in MSA
(A) Composite figure showing the additive MSA GWAS model (upper panel) with the corresponding TWAS results (lower panel) in 888 cases and 7,128 controls (MAF > 1%). The x-axis denotes the chromosomal position in hg38, and the y-axis shows the association p-values on a negative-log10 scale. Each dot represents a variant (GWAS) or a transcript (TWAS). The TWAS results were generated using GTEx gene expression data (version 8) for the hippocampus (additive model) and the caudate (recessive model). Red dots indicate genome-wide significant variants, while orange dots are sub-significant signals. A red dashed line indicates the Bonferroni threshold for genome-wide significance (5.0 × 10−8 for the GWAS, 1.38 × 10−5 for the TWAS in the hippocampus, and 6.77 × 10−6 for the TWAS in the caudate). The blue dashed line denotes the threshold for declaring variants to be subsignificant (5.0 × 10−7). The gene(s) closest to the index variant at each locus in the GWAS is listed. In the TWAS plot, the dot with a black diamond outline indicates a colocalization posterior prior probability hypothesis H4 > 0.80. Panel (B) shows the recessive MSA GWAS model with the corresponding TWAS results in the caudate.
Figure 2.
Figure 2.. Bulk RNA-sequencing and colocalization analyses of the MSA loci
(A) The effect of the 4q31.21 locus index variant, rs55894236-C allele, on USP38-DT expression in brain tissues from the GTEx Consortium is shown. Error bars indicate the standard error. (B) The effect of the 7q11.21 locus index variant, rs11766262-C allele, on KCTD7 expression is depicted. (C) Summary of significant colocalization signals (PPH4 > 0.80) for transcripts at the 4q31.21 and 7q11.21 loci across the GTEx brain tissues. (D) Schematic summary of the GWAS, TWAS, colocalization, and SKAT-O results at the four MSA risk loci. The red squares depict a significant analysis result for the listed gene. The numbers in the red squares show the number of tissues that had a significant colocalization PPH4 signal. Abbreviations: GWAS, genome-wide association study; TWAS, transcriptome-wide association study; coloc, colocalization analysis; PPH4, posterior probability of hypothesis four; and SKAT-O, sequence kernel association test – optimized.
Figure 3.
Figure 3.. Single-nucleus RNA-sequence analyses of common variants at the 4q31.21 and 7q11.21 loci
(A) Single-nucleus RNA-sequence analyses identified cis-eQTLs for rs55894236 for GAB1 in excitatory neurons, inhibitory neurons, and microglia (p-value threshold < 0.05). This SNP was also a cis-eQTL for INPP4B in astrocytes, oligodendrocytes, oligodendrocyte precursor cells, and inhibitory cells (B). Additionally, we identified a cis-eQTL for rs11766262 regulating KCTD7 expression in oligodendroglia, microglia, and excitatory neurons (C). Abbreviations: Ast, astrocytes; End, endocytes; Exc, excitatory neurons; Inh, inhibitory neurons; Mic, microglia; Oli, oligodendroglia; OPC, oligodendroglia precursor cells.

Comment in

References

    1. McCann H, Stevens CH, Cartwright H, and Halliday GM (2014). alpha-Synucleinopathy phenotypes. Parkinsonism Relat Disord 20 Suppl 1, S62–67. 10.1016/S1353-8020(13)70017-8. - DOI - PubMed
    1. Chia R, Sabir MS, Bandres-Ciga S, Saez-Atienzar S, Reynolds RH, Gustavsson E, Walton RL, Ahmed S, Viollet C, Ding J, et al. (2021). Genome sequencing analysis identifies new loci associated with Lewy body dementia and provides insights into its genetic architecture. Nat Genet 53, 294–303. 10.1038/s41588-021-00785-3. - DOI - PMC - PubMed
    1. Nalls MA, Blauwendraat C, Vallerga CL, Heilbron K, Bandres-Ciga S, Chang D, Tan M, Kia DA, Noyce AJ, Xue A, et al. (2019). Identification of novel risk loci, causal insights, and heritable risk for Parkinson's disease: a meta-analysis of genome-wide association studies. Lancet Neurol 18, 1091–1102. 10.1016/S1474-4422(19)30320-5. - DOI - PMC - PubMed
    1. Poewe W, Stankovic I, Halliday G, Meissner WG, Wenning GK, Pellecchia MT, Seppi K, Palma JA, and Kaufmann H (2022). Multiple system atrophy. Nat Rev Dis Primers 8, 56. 10.1038/s41572-022-00382-6. - DOI - PubMed
    1. Gilman S, Wenning GK, Low PA, Brooks DJ, Mathias CJ, Trojanowski JQ, Wood NW, Colosimo C, Durr A, Fowler CJ, et al. (2008). Second consensus statement on the diagnosis of multiple system atrophy. Neurology 71, 670–676. 10.1212/01.wnl.0000324625.00404.15. - DOI - PMC - PubMed

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