Browsing by Author "Uitti, Ryan J."

Now showing 1 - 3 of 3
  • Thumbnail Image
    Item
    Common Variants Near ZIC1 and ZIC4 in Autopsy-Confirmed Multiple System Atrophy
    (Wiley, 2022-10) Hopfner, Franziska; Tietz, Anja K.; Ruf, Viktoria C.; Ross, Owen A.; Koga, Shunsuke; Dickson, Dennis; Aguzzi, Adriano; Attems, Johannes; Beach, Thomas; Beller, Allison; Cheshire, William P.; van Deerlin, Vivianna; Desplats, Paula; Deuschl, Günther; Duyckaerts, Charles; Ellinghaus, David; Evsyukov, Valentin; Flanagan, Margaret Ellen; Franke, Andre; Frosch, Matthew P.; Gearing, Marla; Gelpi, Ellen; van Gerpen, Jay A.; Ghetti, Bernardino; Glass, Jonathan D.; Grinberg, Lea T.; Halliday, Glenda; Helbig, Ingo; Höllerhage, Matthias; Huitinga, Inge; Irwin, David John; Keene, Dirk C.; Kovacs, Gabor G.; Lee, Edward B.; Levin, Johannes; Martí, Maria J.; Mackenzie, Ian; McKeith, Ian; Mclean, Catriona; Mollenhauer, Brit; Neumann, Manuela; Newell, Kathy L.; Pantelyat, Alex; Pendziwiat, Manuela; Peters, Annette; Porcel, Laura Molina; Rabano, Alberto; Matěj, Radoslav; Rajput, Alex; Rajput, Ali; Reimann, Regina; Scott, William K.; Seeley , William; Selvackadunco, Sashika; Simuni, Tanya; Stadelmann, Christine; Svenningsson, Per; Thomas, Alan; Trenkwalder, Claudia; Troakes, Claire; Trojanowski, John Q.; Uitti, Ryan J.; White, Charles L.; Wszolek, Zbigniew K.; Xie, Tao; Ximelis, Teresa; Justo, Yebenes; Alzheimer’s Disease Genetics Consortium; Müller, Ulrich; Schellenberg, Gerard D.; Herms, Jochen; Kuhlenbäumer, Gregor; Höglinger, Günter; Pathology and Laboratory Medicine, School of Medicine
    Background: Multiple System Atrophy is a rare neurodegenerative disease with alpha-synuclein aggregation in glial cytoplasmic inclusions and either predominant olivopontocerebellar atrophy or striatonigral degeneration, leading to dysautonomia, parkinsonism, and cerebellar ataxia. One prior genome-wide association study in mainly clinically diagnosed patients with Multiple System Atrophy failed to identify genetic variants predisposing for the disease. Objective: Since the clinical diagnosis of Multiple System Atrophy yields a high rate of misdiagnosis when compared to the neuropathological gold standard, we studied only autopsy-confirmed cases. Methods: We studied common genetic variations in Multiple System Atrophy cases (N = 731) and controls (N = 2898). Results: The most strongly disease-associated markers were rs16859966 on chromosome 3, rs7013955 on chromosome 8, and rs116607983 on chromosome 4 with P-values below 5 × 10−6, all of which were supported by at least one additional genotyped and several imputed single nucleotide polymorphisms. The genes closest to the chromosome 3 locus are ZIC1 and ZIC4 encoding the zinc finger proteins of cerebellum 1 and 4 (ZIC1 and ZIC4). Interpretation: Since mutations of ZIC1 and ZIC4 and paraneoplastic autoantibodies directed against ZIC4 are associated with severe cerebellar dysfunction, we conducted immunohistochemical analyses in brain tissue of the frontal cortex and the cerebellum from 24 Multiple System Atrophy patients. Strong immunohistochemical expression of ZIC4 was detected in a subset of neurons of the dentate nucleus in all healthy controls and in patients with striatonigral degeneration, whereas ZIC4-immunoreactive neurons were significantly reduced inpatients with olivopontocerebellar atrophy. These findings point to a potential ZIC4-mediated vulnerability of neurons in Multiple System Atrophy.
  • Thumbnail Image
    Item
    Genome-wide analyses as part of the international FTLD-TDP whole-genome sequencing consortium reveals novel disease risk factors and increases support for immune dysfunction in FTLD
    (Springer, 2019-02-09) Pottier, Cyril; Ren, Yingxue; Perkerson, Ralph B.; Baker, Matt; Jenkins, Gregory D.; van Blitterswijk, Marka; DeJesus-Hernandez, Mariely; van Rooij, Jeroen G. J.; Murray, Melissa E.; Christopher, Elizabeth; McDonnell, Shannon K.; Fogarty, Zachary; Batzler, Anthony; Tian, Shulan; Vicente, Cristina T.; Matchett, Billie; Karydas, Anna M.; Hsiung, Ging-Yuek Robin; Seelaar, Harro; Mol, Merel O.; Finger, Elizabeth C.; Graff, Caroline; Öijerstedt, Linn; Neumann, Manuela; Heutink, Peter; Synofzik, Matthis; Matthis, Carlo; Prudlo, Johannes; Rizzu, Patrizia; Simon-Sanchez, Javier; Edbauer, Dieter; Roeber, Sigrun; Diehl-Schmid, Janine; Evers, Bret M.; King, Andrew; Mesulam, M. Marsel; Weintraub, Sandra; Geula, Changiz; Bieniek, Kevin F.; Petrucelli, Leonard; Ahern, Geoffrey L.; Reiman, Eric M.; Woodruff, Bryan K.; Caselli, Richard J.; Huey, Edward D.; Farlow, Martin R.; Grafman, Jordan; Mead, Simon; Grinberg, Lea T.; Spina, Salvatore; Grossman, Murray; Irwin, David J.; Lee, Edward B.; Suh, EunRan; Snowden, Julie; Mann, David; Ertekin-Taner, Nilufer; Uitti, Ryan J.; Wszolek, Zbigniew K.; Josephs, Keith A.; Parisi, Joseph E.; Knopman, David S.; Petersen, Ronald C.; Hodges, John R.; Piguet, Olivier; Geier, Ethan G.; Yokoyama, Jennifer S.; Rissman, Robert A.; Rogaeva, Ekaterina; Keith, Julia; Zinman, Lorne; Tartaglia, Maria Carmela; Cairns, Nigel J.; Cruchaga, Carlos; Ghetti, Bernardino; Kofler, Julia; Lopez, Oscar L.; Beach, Thomas G.; Arzberger, Thomas; Herms, Jochen; Honig, Lawrence S.; Vonsattel, Jean Paul; Halliday, Glenda M.; Kwok, John B.; White, Charles L.; Gearing, Marla; Glass, Jonathan; Rollinson, Sara; Pickering-Brown, Stuart; Rohrer, Jonathan D.; Trojanowski, John Q.; Van Deerlin, Vivianna; Bigio, Eileen H.; Troakes, Claire; Al-Sarraj, Safa; Asmann, Yan; Miller, Bruce L.; Graff-Radford, Neill R.; Boeve, Bradley F.; Seeley, William W.; Mackenzie, Ian R. A.; van Swieten, John C.; Dickson, Dennis W.; Biernacka, Joanna M.; Rademakers, Rosa; Neurology, School of Medicine
    Frontotemporal lobar degeneration with neuronal inclusions of the TAR DNA-binding protein 43 (FTLD-TDP) represents the most common pathological subtype of FTLD. We established the international FTLD-TDP whole genome sequencing consortium to thoroughly characterize the known genetic causes of FTLD-TDP and identify novel genetic risk factors. Through the study of 1,131 unrelated Caucasian patients, we estimated that C9orf72 repeat expansions and GRN loss-of-function mutations account for 25.5% and 13.9% of FTLD-TDP patients, respectively. Mutations in TBK1 (1.5%) and other known FTLD genes (1.4%) were rare, and the disease in 57.7% of FTLD-TDP patients was unexplained by the known FTLD genes. To unravel the contribution of common genetic factors to the FTLD-TDP etiology in these patients, we conducted a two-stage association study comprising the analysis of whole-genome sequencing data from 517 FTLD-TDP patients and 838 controls, followed by targeted genotyping of the most associated genomic loci in 119 additional FTLD-TDP patients and 1653 controls. We identified three genome-wide significant FTLD-TDP risk loci: one new locus at chromosome 7q36 within the DPP6 gene led by rs118113626 (pvalue=4.82e-08, OR=2.12), and two known loci: UNC13A, led by rs1297319 (pvalue=1.27e-08, OR=1.50) and HLA-DQA2 led by rs17219281 (pvalue=3.22e-08, OR=1.98). While HLA represents a locus previously implicated in clinical FTLD and related neurodegenerative disorders, the association signal in our study is independent from previously reported associations. Through inspection of our whole genome sequence data for genes with an excess of rare loss-of-function variants in FTLD-TDP patients (n≥3) as compared to controls (n=0), we further discovered a possible role for genes functioning within the TBK1-related immune pathway (e.g. DHX58, TRIM21, IRF7) in the genetic etiology of FTLD-TDP. Together, our study based on the largest cohort of unrelated FTLD-TDP patients assembled to date provides a comprehensive view of the genetic landscape of FTLD-TDP, nominates novel FTLD-TDP risk loci, and strongly implicates the immune pathway in FTLD-TDP pathogenesis.
  • Thumbnail Image
    Item
    Genome-wide association study of corticobasal degeneration identifies risk variants shared with progressive supranuclear palsy
    (Nature Publishing Group, 2015-06-16) Kouri, Naomi; Ross, Owen A.; Dombroski, Beth; Younkin, Curtis S.; Serie, Daniel J.; Soto-Ortolaza, Alexandra; Baker, Matthew; Finch, Ni Cole A.; Yoon, Hyejin; Kim, Jungsu; Fujioka, Shinsuke; McLean, Catriona A.; Ghetti, Bernardino; Spina, Salvatore; Cantwell, Laura B.; Farlow, Martin R.; Grafman, Jordan; Huey, Edward D.; Ryung Han, Mi; Beecher, Sherry; Geller, Evan T.; Kretzschmar, Hans A.; Roeber, Sigrun; Gearing, Marla; Juncos, Jorge L.; Vonsattel, Jean Paul G.; Van Deerlin, Vivianna M.; Grossman, Murray; Hurtig, Howard I.; Gross, Rachel G.; Arnold, Steven E.; Trojanowski, John Q.; Lee, Virginia M.; Wenning, Gregor K.; White, Charles L.; Höglinger, Günter U.; Müller, Ulrich; Devlin, Bernie; Golbe, Lawrence I.; Crook, Julia; Parisi, Joseph E.; Boeve, Bradley F.; Josephs, Keith A.; Wszolek, Zbigniew K.; Uitti, Ryan J.; Graff-Radford, Neill R.; Litvan, Irene; Younkin, Steven G.; Wang, Li-San; Ertekin-Taner, Nilüfer; Rademakers, Rosa; Hakonarsen, Hakon; Schellenberg, Gerard D.; Dickson, Dennis W.; Department of Pathology & Laboratory Medicine, IU School of Medicine
    Corticobasal degeneration (CBD) is a neurodegenerative disorder affecting movement and cognition, definitively diagnosed only at autopsy. Here, we conduct a genome-wide association study (GWAS) in CBD cases (n=152) and 3,311 controls, and 67 CBD cases and 439 controls in a replication stage. Associations with meta-analysis were 17q21 at MAPT (P=1.42 × 10−12), 8p12 at lnc-KIF13B-1, a long non-coding RNA (rs643472; P=3.41 × 10−8), and 2p22 at SOS1 (rs963731; P=1.76 × 10−7). Testing for association of CBD with top progressive supranuclear palsy (PSP) GWAS single-nucleotide polymorphisms (SNPs) identified associations at MOBP (3p22; rs1768208; P=2.07 × 10−7) and MAPT H1c (17q21; rs242557; P=7.91 × 10−6). We previously reported SNP/transcript level associations with rs8070723/MAPT, rs242557/MAPT, and rs1768208/MOBP and herein identified association with rs963731/SOS1. We identify new CBD susceptibility loci and show that CBD and PSP share a genetic risk factor other than MAPT at 3p22 MOBP (myelin-associated oligodendrocyte basic protein).