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Monnakgotla NR, Mahungu AC, Heckmann JM, Botha G, Mulder NJ, Wu G, Rampersaud E, Myers J, Van Blitterswijk M, Rademakers R, Taylor JP, Wuu J, Benatar M, Nel M. Analysis of Structural Variants Previously Associated With ALS in Europeans Highlights Genomic Architectural Differences in Africans. Neurol Genet 2023; 9:e200077. [PMID: 37346932 PMCID: PMC10281237 DOI: 10.1212/nxg.0000000000200077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 04/03/2023] [Indexed: 06/23/2023]
Abstract
Background and Objectives Amyotrophic lateral sclerosis (ALS) is a degenerative condition of the brain and spinal cord in which protein-coding variants in known ALS disease genes explain a minority of sporadic cases. There is a growing interest in the role of noncoding structural variants (SVs) as ALS risk variants or genetic modifiers of ALS phenotype. In small European samples, specific short SV alleles in noncoding regulatory regions of SCAF4, SQSTM1, and STMN2 have been reported to be associated with ALS, and several groups have investigated the possible role of SMN1/SMN2 gene copy numbers in ALS susceptibility and clinical severity. Methods Using short-read whole genome sequencing (WGS) data, we investigated putative ALS-susceptibility SCAF4 (3'UTR poly-T repeat), SQSTM1 (intron 5 AAAC insertion), and STMN2 (intron 3 CA repeat) alleles in African ancestry patients with ALS and described the architecture of the SMN1/SMN2 gene region. South African cases with ALS (n = 114) were compared with ancestry-matched controls (n = 150), 1000 Genomes Project samples (n = 2,336), and H3Africa Genotyping Chip Project samples (n = 347). Results There was no association with previously reported SCAF4 poly-T repeat, SQSTM1 AAAC insertion, and long STMN2 CA alleles with ALS risk in South Africans (p > 0.2). Similarly, SMN1 and SMN2 gene copy numbers did not differ between South Africans with ALS and matched population controls (p > 0.9). Notably, 20% of the African samples in this study had no SMN2 gene copies, which is a higher frequency than that reported in Europeans (approximately 7%). Discussion We did not replicate the reported association of SCAF4, SQSTM1, and STMN2 short SVs with ALS in a small South African sample. In addition, we found no link between SMN1 and SMN2 copy numbers and susceptibility to ALS in this South African sample, which is similar to the conclusion of a recent meta-analysis of European studies. However, the SMN gene region findings in Africans replicate previous results from East and West Africa and highlight the importance of including diverse population groups in disease gene discovery efforts. The clinically relevant differences in the SMN gene architecture between African and non-African populations may affect the effectiveness of targeted SMN2 gene therapy for related diseases such as spinal muscular atrophy.
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Affiliation(s)
- Nomakhosazana R Monnakgotla
- From the Neurology Research Group (N.R.M., A.C.M., J.M.H., M.N.), Division of Neurology, Department of Medicine; Neuroscience Institute (N.R.M., A.C.M., J.M.H., M.N.); Computational Biology Division (G.B., N.J.M.), Institute of Infectious Disease and Molecular Medicine, University of Cape Town, South Africa; Center for Applied Bioinformatics (G.W., E.R., J.M.), St. Jude Children's Research Hospital, Memphis, TN; Department of Neuroscience (M.V.B.), Mayo Clinic, Jacksonville, FL; Center for Molecular Neurology (R.R.), University of Antwerp, Belgium; Department of Cell and Molecular Biology (J.P.T.), St. Jude Children's Research Hospital, Memphis, TN; and Department of Neurology (J.W., M.B.), University of Miami, FL
| | - Amokelani C Mahungu
- From the Neurology Research Group (N.R.M., A.C.M., J.M.H., M.N.), Division of Neurology, Department of Medicine; Neuroscience Institute (N.R.M., A.C.M., J.M.H., M.N.); Computational Biology Division (G.B., N.J.M.), Institute of Infectious Disease and Molecular Medicine, University of Cape Town, South Africa; Center for Applied Bioinformatics (G.W., E.R., J.M.), St. Jude Children's Research Hospital, Memphis, TN; Department of Neuroscience (M.V.B.), Mayo Clinic, Jacksonville, FL; Center for Molecular Neurology (R.R.), University of Antwerp, Belgium; Department of Cell and Molecular Biology (J.P.T.), St. Jude Children's Research Hospital, Memphis, TN; and Department of Neurology (J.W., M.B.), University of Miami, FL
| | - Jeannine M Heckmann
- From the Neurology Research Group (N.R.M., A.C.M., J.M.H., M.N.), Division of Neurology, Department of Medicine; Neuroscience Institute (N.R.M., A.C.M., J.M.H., M.N.); Computational Biology Division (G.B., N.J.M.), Institute of Infectious Disease and Molecular Medicine, University of Cape Town, South Africa; Center for Applied Bioinformatics (G.W., E.R., J.M.), St. Jude Children's Research Hospital, Memphis, TN; Department of Neuroscience (M.V.B.), Mayo Clinic, Jacksonville, FL; Center for Molecular Neurology (R.R.), University of Antwerp, Belgium; Department of Cell and Molecular Biology (J.P.T.), St. Jude Children's Research Hospital, Memphis, TN; and Department of Neurology (J.W., M.B.), University of Miami, FL
| | - Gerrit Botha
- From the Neurology Research Group (N.R.M., A.C.M., J.M.H., M.N.), Division of Neurology, Department of Medicine; Neuroscience Institute (N.R.M., A.C.M., J.M.H., M.N.); Computational Biology Division (G.B., N.J.M.), Institute of Infectious Disease and Molecular Medicine, University of Cape Town, South Africa; Center for Applied Bioinformatics (G.W., E.R., J.M.), St. Jude Children's Research Hospital, Memphis, TN; Department of Neuroscience (M.V.B.), Mayo Clinic, Jacksonville, FL; Center for Molecular Neurology (R.R.), University of Antwerp, Belgium; Department of Cell and Molecular Biology (J.P.T.), St. Jude Children's Research Hospital, Memphis, TN; and Department of Neurology (J.W., M.B.), University of Miami, FL
| | - Nicola J Mulder
- From the Neurology Research Group (N.R.M., A.C.M., J.M.H., M.N.), Division of Neurology, Department of Medicine; Neuroscience Institute (N.R.M., A.C.M., J.M.H., M.N.); Computational Biology Division (G.B., N.J.M.), Institute of Infectious Disease and Molecular Medicine, University of Cape Town, South Africa; Center for Applied Bioinformatics (G.W., E.R., J.M.), St. Jude Children's Research Hospital, Memphis, TN; Department of Neuroscience (M.V.B.), Mayo Clinic, Jacksonville, FL; Center for Molecular Neurology (R.R.), University of Antwerp, Belgium; Department of Cell and Molecular Biology (J.P.T.), St. Jude Children's Research Hospital, Memphis, TN; and Department of Neurology (J.W., M.B.), University of Miami, FL
| | - Gang Wu
- From the Neurology Research Group (N.R.M., A.C.M., J.M.H., M.N.), Division of Neurology, Department of Medicine; Neuroscience Institute (N.R.M., A.C.M., J.M.H., M.N.); Computational Biology Division (G.B., N.J.M.), Institute of Infectious Disease and Molecular Medicine, University of Cape Town, South Africa; Center for Applied Bioinformatics (G.W., E.R., J.M.), St. Jude Children's Research Hospital, Memphis, TN; Department of Neuroscience (M.V.B.), Mayo Clinic, Jacksonville, FL; Center for Molecular Neurology (R.R.), University of Antwerp, Belgium; Department of Cell and Molecular Biology (J.P.T.), St. Jude Children's Research Hospital, Memphis, TN; and Department of Neurology (J.W., M.B.), University of Miami, FL
| | - Evadnie Rampersaud
- From the Neurology Research Group (N.R.M., A.C.M., J.M.H., M.N.), Division of Neurology, Department of Medicine; Neuroscience Institute (N.R.M., A.C.M., J.M.H., M.N.); Computational Biology Division (G.B., N.J.M.), Institute of Infectious Disease and Molecular Medicine, University of Cape Town, South Africa; Center for Applied Bioinformatics (G.W., E.R., J.M.), St. Jude Children's Research Hospital, Memphis, TN; Department of Neuroscience (M.V.B.), Mayo Clinic, Jacksonville, FL; Center for Molecular Neurology (R.R.), University of Antwerp, Belgium; Department of Cell and Molecular Biology (J.P.T.), St. Jude Children's Research Hospital, Memphis, TN; and Department of Neurology (J.W., M.B.), University of Miami, FL
| | - Jason Myers
- From the Neurology Research Group (N.R.M., A.C.M., J.M.H., M.N.), Division of Neurology, Department of Medicine; Neuroscience Institute (N.R.M., A.C.M., J.M.H., M.N.); Computational Biology Division (G.B., N.J.M.), Institute of Infectious Disease and Molecular Medicine, University of Cape Town, South Africa; Center for Applied Bioinformatics (G.W., E.R., J.M.), St. Jude Children's Research Hospital, Memphis, TN; Department of Neuroscience (M.V.B.), Mayo Clinic, Jacksonville, FL; Center for Molecular Neurology (R.R.), University of Antwerp, Belgium; Department of Cell and Molecular Biology (J.P.T.), St. Jude Children's Research Hospital, Memphis, TN; and Department of Neurology (J.W., M.B.), University of Miami, FL
| | - Marka Van Blitterswijk
- From the Neurology Research Group (N.R.M., A.C.M., J.M.H., M.N.), Division of Neurology, Department of Medicine; Neuroscience Institute (N.R.M., A.C.M., J.M.H., M.N.); Computational Biology Division (G.B., N.J.M.), Institute of Infectious Disease and Molecular Medicine, University of Cape Town, South Africa; Center for Applied Bioinformatics (G.W., E.R., J.M.), St. Jude Children's Research Hospital, Memphis, TN; Department of Neuroscience (M.V.B.), Mayo Clinic, Jacksonville, FL; Center for Molecular Neurology (R.R.), University of Antwerp, Belgium; Department of Cell and Molecular Biology (J.P.T.), St. Jude Children's Research Hospital, Memphis, TN; and Department of Neurology (J.W., M.B.), University of Miami, FL
| | - Rosa Rademakers
- From the Neurology Research Group (N.R.M., A.C.M., J.M.H., M.N.), Division of Neurology, Department of Medicine; Neuroscience Institute (N.R.M., A.C.M., J.M.H., M.N.); Computational Biology Division (G.B., N.J.M.), Institute of Infectious Disease and Molecular Medicine, University of Cape Town, South Africa; Center for Applied Bioinformatics (G.W., E.R., J.M.), St. Jude Children's Research Hospital, Memphis, TN; Department of Neuroscience (M.V.B.), Mayo Clinic, Jacksonville, FL; Center for Molecular Neurology (R.R.), University of Antwerp, Belgium; Department of Cell and Molecular Biology (J.P.T.), St. Jude Children's Research Hospital, Memphis, TN; and Department of Neurology (J.W., M.B.), University of Miami, FL
| | - J Paul Taylor
- From the Neurology Research Group (N.R.M., A.C.M., J.M.H., M.N.), Division of Neurology, Department of Medicine; Neuroscience Institute (N.R.M., A.C.M., J.M.H., M.N.); Computational Biology Division (G.B., N.J.M.), Institute of Infectious Disease and Molecular Medicine, University of Cape Town, South Africa; Center for Applied Bioinformatics (G.W., E.R., J.M.), St. Jude Children's Research Hospital, Memphis, TN; Department of Neuroscience (M.V.B.), Mayo Clinic, Jacksonville, FL; Center for Molecular Neurology (R.R.), University of Antwerp, Belgium; Department of Cell and Molecular Biology (J.P.T.), St. Jude Children's Research Hospital, Memphis, TN; and Department of Neurology (J.W., M.B.), University of Miami, FL
| | - Joanne Wuu
- From the Neurology Research Group (N.R.M., A.C.M., J.M.H., M.N.), Division of Neurology, Department of Medicine; Neuroscience Institute (N.R.M., A.C.M., J.M.H., M.N.); Computational Biology Division (G.B., N.J.M.), Institute of Infectious Disease and Molecular Medicine, University of Cape Town, South Africa; Center for Applied Bioinformatics (G.W., E.R., J.M.), St. Jude Children's Research Hospital, Memphis, TN; Department of Neuroscience (M.V.B.), Mayo Clinic, Jacksonville, FL; Center for Molecular Neurology (R.R.), University of Antwerp, Belgium; Department of Cell and Molecular Biology (J.P.T.), St. Jude Children's Research Hospital, Memphis, TN; and Department of Neurology (J.W., M.B.), University of Miami, FL
| | - Michael Benatar
- From the Neurology Research Group (N.R.M., A.C.M., J.M.H., M.N.), Division of Neurology, Department of Medicine; Neuroscience Institute (N.R.M., A.C.M., J.M.H., M.N.); Computational Biology Division (G.B., N.J.M.), Institute of Infectious Disease and Molecular Medicine, University of Cape Town, South Africa; Center for Applied Bioinformatics (G.W., E.R., J.M.), St. Jude Children's Research Hospital, Memphis, TN; Department of Neuroscience (M.V.B.), Mayo Clinic, Jacksonville, FL; Center for Molecular Neurology (R.R.), University of Antwerp, Belgium; Department of Cell and Molecular Biology (J.P.T.), St. Jude Children's Research Hospital, Memphis, TN; and Department of Neurology (J.W., M.B.), University of Miami, FL
| | - Melissa Nel
- From the Neurology Research Group (N.R.M., A.C.M., J.M.H., M.N.), Division of Neurology, Department of Medicine; Neuroscience Institute (N.R.M., A.C.M., J.M.H., M.N.); Computational Biology Division (G.B., N.J.M.), Institute of Infectious Disease and Molecular Medicine, University of Cape Town, South Africa; Center for Applied Bioinformatics (G.W., E.R., J.M.), St. Jude Children's Research Hospital, Memphis, TN; Department of Neuroscience (M.V.B.), Mayo Clinic, Jacksonville, FL; Center for Molecular Neurology (R.R.), University of Antwerp, Belgium; Department of Cell and Molecular Biology (J.P.T.), St. Jude Children's Research Hospital, Memphis, TN; and Department of Neurology (J.W., M.B.), University of Miami, FL
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Pytte J, Flynn LL, Anderton RS, Mastaglia FL, Theunissen F, James I, Pfaff A, Koks S, Saunders AM, Bedlack R, Burns DK, Lutz MW, Siddique N, Siddique T, Roses AD, Akkari PA. Disease-modifying effects of an SCAF4 structural variant in a predominantly SOD1 ALS cohort. Neurol Genet 2020; 6:e470. [PMID: 32754644 PMCID: PMC7357414 DOI: 10.1212/nxg.0000000000000470] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 06/02/2020] [Indexed: 12/31/2022]
Abstract
OBJECTIVE To test the hypothesis that rs573116164 will have disease-modifying effects in patients with superoxide dismutase 1 (SOD1) familial amyotrophic lateral sclerosis (fALS), we characterized rs573116164 within a cohort of 190 patients with fALS and 560 healthy age-matched controls to assess the variant for association with various measures of disease. METHODS Using a previously described bioinformatics evaluation algorithm, a polymorphic short structural variant associated with SOD1 was identified according to its theoretical effect on gene expression. An 12-18 poly-T repeat (rs573116164) within the 3' untranslated region of serine and arginine rich proteins-related carboxy terminal domain associated factor 4 (SCAF4), a gene that is adjacent to SOD1, was assessed for disease association and influence on survival and age at onset in an fALS cohort using PCR, Sanger sequencing, and capillary separation techniques for allele detection. RESULTS In a North American cohort of predominantly SOD1 fALS patients (n =190) and age-matched healthy controls (n = 560), we showed that carriage of an 18T SCAF4 allele was associated with disease within this cohort (odds ratio [OR] 6.6; 95% confidence interval [CI] 3.9-11.2; p = 4.0e-11), but also within non-SOD1 cases (n = 27; OR 5.3; 95% CI 1.9-14.5; p = 0.0014). This finding suggests genetically SOD1-independent effects of SCAF4 on fALS susceptibility. Furthermore, carriage of an 18T allele was associated with a 26-month reduction in survival time (95% CI 6.6-40.8; p = 0.014), but did not affect age at onset of disease. CONCLUSIONS The findings in this fALS cohort suggest that rs573116164 could have SOD1-independent and broader relevance in ALS, warranting further investigation in other fALS and sporadic ALS cohorts, as well as studies of functional effects of the 18T variant on gene expression.
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Affiliation(s)
- Julia Pytte
- Centre for Neuromuscular and Neurological Disorders (J.P., L.L.F., R.S.A., F.L.M., F.T., A.P., S.K., P.A.A.), University of Western Australia, Crawley; Perron Institute for Neurological and Translational Science (J.P., L.L.F., R.S.A., F.L.M., F.T., A.P., S.K., P.A.A.), Nedlands; Centre for Molecular Medicine and Innovative Therapeutics (L.L.F., A.P., S.K., P.A.A.), Murdoch University; School of Health Sciences (R.S.A.), and Institute for Health Research (R.S.A.), University of Notre Dame Australia, Fremantle; Institute for Immunology and Infectious Diseases (I.J.), Murdoch University, Australia; Department of Neurology (A.M.S., R.B., M.W.L., A.D.R.), Duke University School of Medicine, Durham, NC; Zinfandel Pharmaceuticals, Inc. (A.M.S., D.K.B., A.D.R.), Durham, NC; ALS Clinic (R.B.), Duke University, Durham, NC; Departments of Neurology, Pathology and Cell and Molecular Biology (N.S., T.S.), the Les Turner ALS Center, Northwestern University Feinberg School of Medicine; and the Northwestern University Interdepartmental Neuroscience Program (N.S., T.S.), Chicago, IL
| | - Loren L Flynn
- Centre for Neuromuscular and Neurological Disorders (J.P., L.L.F., R.S.A., F.L.M., F.T., A.P., S.K., P.A.A.), University of Western Australia, Crawley; Perron Institute for Neurological and Translational Science (J.P., L.L.F., R.S.A., F.L.M., F.T., A.P., S.K., P.A.A.), Nedlands; Centre for Molecular Medicine and Innovative Therapeutics (L.L.F., A.P., S.K., P.A.A.), Murdoch University; School of Health Sciences (R.S.A.), and Institute for Health Research (R.S.A.), University of Notre Dame Australia, Fremantle; Institute for Immunology and Infectious Diseases (I.J.), Murdoch University, Australia; Department of Neurology (A.M.S., R.B., M.W.L., A.D.R.), Duke University School of Medicine, Durham, NC; Zinfandel Pharmaceuticals, Inc. (A.M.S., D.K.B., A.D.R.), Durham, NC; ALS Clinic (R.B.), Duke University, Durham, NC; Departments of Neurology, Pathology and Cell and Molecular Biology (N.S., T.S.), the Les Turner ALS Center, Northwestern University Feinberg School of Medicine; and the Northwestern University Interdepartmental Neuroscience Program (N.S., T.S.), Chicago, IL
| | - Ryan S Anderton
- Centre for Neuromuscular and Neurological Disorders (J.P., L.L.F., R.S.A., F.L.M., F.T., A.P., S.K., P.A.A.), University of Western Australia, Crawley; Perron Institute for Neurological and Translational Science (J.P., L.L.F., R.S.A., F.L.M., F.T., A.P., S.K., P.A.A.), Nedlands; Centre for Molecular Medicine and Innovative Therapeutics (L.L.F., A.P., S.K., P.A.A.), Murdoch University; School of Health Sciences (R.S.A.), and Institute for Health Research (R.S.A.), University of Notre Dame Australia, Fremantle; Institute for Immunology and Infectious Diseases (I.J.), Murdoch University, Australia; Department of Neurology (A.M.S., R.B., M.W.L., A.D.R.), Duke University School of Medicine, Durham, NC; Zinfandel Pharmaceuticals, Inc. (A.M.S., D.K.B., A.D.R.), Durham, NC; ALS Clinic (R.B.), Duke University, Durham, NC; Departments of Neurology, Pathology and Cell and Molecular Biology (N.S., T.S.), the Les Turner ALS Center, Northwestern University Feinberg School of Medicine; and the Northwestern University Interdepartmental Neuroscience Program (N.S., T.S.), Chicago, IL
| | - Frank L Mastaglia
- Centre for Neuromuscular and Neurological Disorders (J.P., L.L.F., R.S.A., F.L.M., F.T., A.P., S.K., P.A.A.), University of Western Australia, Crawley; Perron Institute for Neurological and Translational Science (J.P., L.L.F., R.S.A., F.L.M., F.T., A.P., S.K., P.A.A.), Nedlands; Centre for Molecular Medicine and Innovative Therapeutics (L.L.F., A.P., S.K., P.A.A.), Murdoch University; School of Health Sciences (R.S.A.), and Institute for Health Research (R.S.A.), University of Notre Dame Australia, Fremantle; Institute for Immunology and Infectious Diseases (I.J.), Murdoch University, Australia; Department of Neurology (A.M.S., R.B., M.W.L., A.D.R.), Duke University School of Medicine, Durham, NC; Zinfandel Pharmaceuticals, Inc. (A.M.S., D.K.B., A.D.R.), Durham, NC; ALS Clinic (R.B.), Duke University, Durham, NC; Departments of Neurology, Pathology and Cell and Molecular Biology (N.S., T.S.), the Les Turner ALS Center, Northwestern University Feinberg School of Medicine; and the Northwestern University Interdepartmental Neuroscience Program (N.S., T.S.), Chicago, IL
| | - Frances Theunissen
- Centre for Neuromuscular and Neurological Disorders (J.P., L.L.F., R.S.A., F.L.M., F.T., A.P., S.K., P.A.A.), University of Western Australia, Crawley; Perron Institute for Neurological and Translational Science (J.P., L.L.F., R.S.A., F.L.M., F.T., A.P., S.K., P.A.A.), Nedlands; Centre for Molecular Medicine and Innovative Therapeutics (L.L.F., A.P., S.K., P.A.A.), Murdoch University; School of Health Sciences (R.S.A.), and Institute for Health Research (R.S.A.), University of Notre Dame Australia, Fremantle; Institute for Immunology and Infectious Diseases (I.J.), Murdoch University, Australia; Department of Neurology (A.M.S., R.B., M.W.L., A.D.R.), Duke University School of Medicine, Durham, NC; Zinfandel Pharmaceuticals, Inc. (A.M.S., D.K.B., A.D.R.), Durham, NC; ALS Clinic (R.B.), Duke University, Durham, NC; Departments of Neurology, Pathology and Cell and Molecular Biology (N.S., T.S.), the Les Turner ALS Center, Northwestern University Feinberg School of Medicine; and the Northwestern University Interdepartmental Neuroscience Program (N.S., T.S.), Chicago, IL
| | - Ian James
- Centre for Neuromuscular and Neurological Disorders (J.P., L.L.F., R.S.A., F.L.M., F.T., A.P., S.K., P.A.A.), University of Western Australia, Crawley; Perron Institute for Neurological and Translational Science (J.P., L.L.F., R.S.A., F.L.M., F.T., A.P., S.K., P.A.A.), Nedlands; Centre for Molecular Medicine and Innovative Therapeutics (L.L.F., A.P., S.K., P.A.A.), Murdoch University; School of Health Sciences (R.S.A.), and Institute for Health Research (R.S.A.), University of Notre Dame Australia, Fremantle; Institute for Immunology and Infectious Diseases (I.J.), Murdoch University, Australia; Department of Neurology (A.M.S., R.B., M.W.L., A.D.R.), Duke University School of Medicine, Durham, NC; Zinfandel Pharmaceuticals, Inc. (A.M.S., D.K.B., A.D.R.), Durham, NC; ALS Clinic (R.B.), Duke University, Durham, NC; Departments of Neurology, Pathology and Cell and Molecular Biology (N.S., T.S.), the Les Turner ALS Center, Northwestern University Feinberg School of Medicine; and the Northwestern University Interdepartmental Neuroscience Program (N.S., T.S.), Chicago, IL
| | - Abigail Pfaff
- Centre for Neuromuscular and Neurological Disorders (J.P., L.L.F., R.S.A., F.L.M., F.T., A.P., S.K., P.A.A.), University of Western Australia, Crawley; Perron Institute for Neurological and Translational Science (J.P., L.L.F., R.S.A., F.L.M., F.T., A.P., S.K., P.A.A.), Nedlands; Centre for Molecular Medicine and Innovative Therapeutics (L.L.F., A.P., S.K., P.A.A.), Murdoch University; School of Health Sciences (R.S.A.), and Institute for Health Research (R.S.A.), University of Notre Dame Australia, Fremantle; Institute for Immunology and Infectious Diseases (I.J.), Murdoch University, Australia; Department of Neurology (A.M.S., R.B., M.W.L., A.D.R.), Duke University School of Medicine, Durham, NC; Zinfandel Pharmaceuticals, Inc. (A.M.S., D.K.B., A.D.R.), Durham, NC; ALS Clinic (R.B.), Duke University, Durham, NC; Departments of Neurology, Pathology and Cell and Molecular Biology (N.S., T.S.), the Les Turner ALS Center, Northwestern University Feinberg School of Medicine; and the Northwestern University Interdepartmental Neuroscience Program (N.S., T.S.), Chicago, IL
| | - Sulev Koks
- Centre for Neuromuscular and Neurological Disorders (J.P., L.L.F., R.S.A., F.L.M., F.T., A.P., S.K., P.A.A.), University of Western Australia, Crawley; Perron Institute for Neurological and Translational Science (J.P., L.L.F., R.S.A., F.L.M., F.T., A.P., S.K., P.A.A.), Nedlands; Centre for Molecular Medicine and Innovative Therapeutics (L.L.F., A.P., S.K., P.A.A.), Murdoch University; School of Health Sciences (R.S.A.), and Institute for Health Research (R.S.A.), University of Notre Dame Australia, Fremantle; Institute for Immunology and Infectious Diseases (I.J.), Murdoch University, Australia; Department of Neurology (A.M.S., R.B., M.W.L., A.D.R.), Duke University School of Medicine, Durham, NC; Zinfandel Pharmaceuticals, Inc. (A.M.S., D.K.B., A.D.R.), Durham, NC; ALS Clinic (R.B.), Duke University, Durham, NC; Departments of Neurology, Pathology and Cell and Molecular Biology (N.S., T.S.), the Les Turner ALS Center, Northwestern University Feinberg School of Medicine; and the Northwestern University Interdepartmental Neuroscience Program (N.S., T.S.), Chicago, IL
| | - Ann M Saunders
- Centre for Neuromuscular and Neurological Disorders (J.P., L.L.F., R.S.A., F.L.M., F.T., A.P., S.K., P.A.A.), University of Western Australia, Crawley; Perron Institute for Neurological and Translational Science (J.P., L.L.F., R.S.A., F.L.M., F.T., A.P., S.K., P.A.A.), Nedlands; Centre for Molecular Medicine and Innovative Therapeutics (L.L.F., A.P., S.K., P.A.A.), Murdoch University; School of Health Sciences (R.S.A.), and Institute for Health Research (R.S.A.), University of Notre Dame Australia, Fremantle; Institute for Immunology and Infectious Diseases (I.J.), Murdoch University, Australia; Department of Neurology (A.M.S., R.B., M.W.L., A.D.R.), Duke University School of Medicine, Durham, NC; Zinfandel Pharmaceuticals, Inc. (A.M.S., D.K.B., A.D.R.), Durham, NC; ALS Clinic (R.B.), Duke University, Durham, NC; Departments of Neurology, Pathology and Cell and Molecular Biology (N.S., T.S.), the Les Turner ALS Center, Northwestern University Feinberg School of Medicine; and the Northwestern University Interdepartmental Neuroscience Program (N.S., T.S.), Chicago, IL
| | - Richard Bedlack
- Centre for Neuromuscular and Neurological Disorders (J.P., L.L.F., R.S.A., F.L.M., F.T., A.P., S.K., P.A.A.), University of Western Australia, Crawley; Perron Institute for Neurological and Translational Science (J.P., L.L.F., R.S.A., F.L.M., F.T., A.P., S.K., P.A.A.), Nedlands; Centre for Molecular Medicine and Innovative Therapeutics (L.L.F., A.P., S.K., P.A.A.), Murdoch University; School of Health Sciences (R.S.A.), and Institute for Health Research (R.S.A.), University of Notre Dame Australia, Fremantle; Institute for Immunology and Infectious Diseases (I.J.), Murdoch University, Australia; Department of Neurology (A.M.S., R.B., M.W.L., A.D.R.), Duke University School of Medicine, Durham, NC; Zinfandel Pharmaceuticals, Inc. (A.M.S., D.K.B., A.D.R.), Durham, NC; ALS Clinic (R.B.), Duke University, Durham, NC; Departments of Neurology, Pathology and Cell and Molecular Biology (N.S., T.S.), the Les Turner ALS Center, Northwestern University Feinberg School of Medicine; and the Northwestern University Interdepartmental Neuroscience Program (N.S., T.S.), Chicago, IL
| | - Daniel K Burns
- Centre for Neuromuscular and Neurological Disorders (J.P., L.L.F., R.S.A., F.L.M., F.T., A.P., S.K., P.A.A.), University of Western Australia, Crawley; Perron Institute for Neurological and Translational Science (J.P., L.L.F., R.S.A., F.L.M., F.T., A.P., S.K., P.A.A.), Nedlands; Centre for Molecular Medicine and Innovative Therapeutics (L.L.F., A.P., S.K., P.A.A.), Murdoch University; School of Health Sciences (R.S.A.), and Institute for Health Research (R.S.A.), University of Notre Dame Australia, Fremantle; Institute for Immunology and Infectious Diseases (I.J.), Murdoch University, Australia; Department of Neurology (A.M.S., R.B., M.W.L., A.D.R.), Duke University School of Medicine, Durham, NC; Zinfandel Pharmaceuticals, Inc. (A.M.S., D.K.B., A.D.R.), Durham, NC; ALS Clinic (R.B.), Duke University, Durham, NC; Departments of Neurology, Pathology and Cell and Molecular Biology (N.S., T.S.), the Les Turner ALS Center, Northwestern University Feinberg School of Medicine; and the Northwestern University Interdepartmental Neuroscience Program (N.S., T.S.), Chicago, IL
| | - Michael W Lutz
- Centre for Neuromuscular and Neurological Disorders (J.P., L.L.F., R.S.A., F.L.M., F.T., A.P., S.K., P.A.A.), University of Western Australia, Crawley; Perron Institute for Neurological and Translational Science (J.P., L.L.F., R.S.A., F.L.M., F.T., A.P., S.K., P.A.A.), Nedlands; Centre for Molecular Medicine and Innovative Therapeutics (L.L.F., A.P., S.K., P.A.A.), Murdoch University; School of Health Sciences (R.S.A.), and Institute for Health Research (R.S.A.), University of Notre Dame Australia, Fremantle; Institute for Immunology and Infectious Diseases (I.J.), Murdoch University, Australia; Department of Neurology (A.M.S., R.B., M.W.L., A.D.R.), Duke University School of Medicine, Durham, NC; Zinfandel Pharmaceuticals, Inc. (A.M.S., D.K.B., A.D.R.), Durham, NC; ALS Clinic (R.B.), Duke University, Durham, NC; Departments of Neurology, Pathology and Cell and Molecular Biology (N.S., T.S.), the Les Turner ALS Center, Northwestern University Feinberg School of Medicine; and the Northwestern University Interdepartmental Neuroscience Program (N.S., T.S.), Chicago, IL
| | - Nailah Siddique
- Centre for Neuromuscular and Neurological Disorders (J.P., L.L.F., R.S.A., F.L.M., F.T., A.P., S.K., P.A.A.), University of Western Australia, Crawley; Perron Institute for Neurological and Translational Science (J.P., L.L.F., R.S.A., F.L.M., F.T., A.P., S.K., P.A.A.), Nedlands; Centre for Molecular Medicine and Innovative Therapeutics (L.L.F., A.P., S.K., P.A.A.), Murdoch University; School of Health Sciences (R.S.A.), and Institute for Health Research (R.S.A.), University of Notre Dame Australia, Fremantle; Institute for Immunology and Infectious Diseases (I.J.), Murdoch University, Australia; Department of Neurology (A.M.S., R.B., M.W.L., A.D.R.), Duke University School of Medicine, Durham, NC; Zinfandel Pharmaceuticals, Inc. (A.M.S., D.K.B., A.D.R.), Durham, NC; ALS Clinic (R.B.), Duke University, Durham, NC; Departments of Neurology, Pathology and Cell and Molecular Biology (N.S., T.S.), the Les Turner ALS Center, Northwestern University Feinberg School of Medicine; and the Northwestern University Interdepartmental Neuroscience Program (N.S., T.S.), Chicago, IL
| | - Teepu Siddique
- Centre for Neuromuscular and Neurological Disorders (J.P., L.L.F., R.S.A., F.L.M., F.T., A.P., S.K., P.A.A.), University of Western Australia, Crawley; Perron Institute for Neurological and Translational Science (J.P., L.L.F., R.S.A., F.L.M., F.T., A.P., S.K., P.A.A.), Nedlands; Centre for Molecular Medicine and Innovative Therapeutics (L.L.F., A.P., S.K., P.A.A.), Murdoch University; School of Health Sciences (R.S.A.), and Institute for Health Research (R.S.A.), University of Notre Dame Australia, Fremantle; Institute for Immunology and Infectious Diseases (I.J.), Murdoch University, Australia; Department of Neurology (A.M.S., R.B., M.W.L., A.D.R.), Duke University School of Medicine, Durham, NC; Zinfandel Pharmaceuticals, Inc. (A.M.S., D.K.B., A.D.R.), Durham, NC; ALS Clinic (R.B.), Duke University, Durham, NC; Departments of Neurology, Pathology and Cell and Molecular Biology (N.S., T.S.), the Les Turner ALS Center, Northwestern University Feinberg School of Medicine; and the Northwestern University Interdepartmental Neuroscience Program (N.S., T.S.), Chicago, IL
| | - Allen D Roses
- Centre for Neuromuscular and Neurological Disorders (J.P., L.L.F., R.S.A., F.L.M., F.T., A.P., S.K., P.A.A.), University of Western Australia, Crawley; Perron Institute for Neurological and Translational Science (J.P., L.L.F., R.S.A., F.L.M., F.T., A.P., S.K., P.A.A.), Nedlands; Centre for Molecular Medicine and Innovative Therapeutics (L.L.F., A.P., S.K., P.A.A.), Murdoch University; School of Health Sciences (R.S.A.), and Institute for Health Research (R.S.A.), University of Notre Dame Australia, Fremantle; Institute for Immunology and Infectious Diseases (I.J.), Murdoch University, Australia; Department of Neurology (A.M.S., R.B., M.W.L., A.D.R.), Duke University School of Medicine, Durham, NC; Zinfandel Pharmaceuticals, Inc. (A.M.S., D.K.B., A.D.R.), Durham, NC; ALS Clinic (R.B.), Duke University, Durham, NC; Departments of Neurology, Pathology and Cell and Molecular Biology (N.S., T.S.), the Les Turner ALS Center, Northwestern University Feinberg School of Medicine; and the Northwestern University Interdepartmental Neuroscience Program (N.S., T.S.), Chicago, IL
| | - P Anthony Akkari
- Centre for Neuromuscular and Neurological Disorders (J.P., L.L.F., R.S.A., F.L.M., F.T., A.P., S.K., P.A.A.), University of Western Australia, Crawley; Perron Institute for Neurological and Translational Science (J.P., L.L.F., R.S.A., F.L.M., F.T., A.P., S.K., P.A.A.), Nedlands; Centre for Molecular Medicine and Innovative Therapeutics (L.L.F., A.P., S.K., P.A.A.), Murdoch University; School of Health Sciences (R.S.A.), and Institute for Health Research (R.S.A.), University of Notre Dame Australia, Fremantle; Institute for Immunology and Infectious Diseases (I.J.), Murdoch University, Australia; Department of Neurology (A.M.S., R.B., M.W.L., A.D.R.), Duke University School of Medicine, Durham, NC; Zinfandel Pharmaceuticals, Inc. (A.M.S., D.K.B., A.D.R.), Durham, NC; ALS Clinic (R.B.), Duke University, Durham, NC; Departments of Neurology, Pathology and Cell and Molecular Biology (N.S., T.S.), the Les Turner ALS Center, Northwestern University Feinberg School of Medicine; and the Northwestern University Interdepartmental Neuroscience Program (N.S., T.S.), Chicago, IL
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