Genome-wide association study identifies risk variants for sporadic Creutzfeldt-Jakob disease in STX6 and GAL3ST1
| Autor: | Anna Poleggi, John Collinge, Carla A. Ibrahim-Verbaas, Jean-Philippe Brandel, Emma Jones, Dimitriadis A, Anna Bartoletti-Stella, James Uphill, Christiane Stehmann, Mok Th, Gerard H. Jansen, Tracy Campbell, Zafar S, Holger Hummerich, van Duijn C, Jiri G. Safar, Ewa Golanska, Martinón-Torres F, Aili Golubjatnikov, Michael B. Coulthart, Zane Jaunmuktane, Beata Sikorska, Giuseppe Matullo, Miguel Calero, Jerome Whitfield, Sabina Capellari, Jean-Louis Laplanche, Kathleen Glisic, Gabor G. Kovacs, Richard Knight, Helen Speedy, Juan Ps, Olga Calero, Jean-Charles Lambert, Stéphane Haïk, Anna Ladogana, Akin Nihat, Stephanie A. Booth, Serena Aneli, Herbert Budka, Pawel P. Liberski, Piero Parchi, Shannon Sarros, Jacqueline M. Linehan, Sebastian Brandner, Maurizio Pocchiari, Ahmed P, Michael D. Geschwind, Fronztek K, Antonio Salas, Inga Zerr, Janis Blevins, Elodie Bouaziz-Amar, Brian S. Appleby, Steven J. Collins, P. Gambetti, Hata Karamujić-Čomić, Adriano Aguzzi, Philippe Amouyel, van der Lee S, Penny Norsworthy, Parmjit S. Jat, Liam Quinn, Emmanuelle Viré, Simon Mead |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Genetics
0303 health sciences biology animal diseases Tau protein STX6 Single-nucleotide polymorphism Genome-wide association study medicine.disease 3. Good health Progressive supranuclear palsy PRNP nervous system diseases 03 medical and health sciences 0302 clinical medicine medicine biology.protein Gene 030217 neurology & neurosurgery Exome sequencing 030304 developmental biology |
| DOI: | 10.1101/2020.04.06.20055376 |
| Popis: | Mammalian prions are lethal pathogens composed of fibrillar assemblies of misfolded prion protein. Human prion diseases are rare and usually rapidly fatal neurodegenerative disorders, the most common being sporadic Creutzfeldt-Jakob disease (sCJD). Variants in the gene that encodes prion protein (PRNP) are strong risk factors for sCJD, but although the condition has heritability similar to other neurodegenerative disorders, no other risk loci have yet been confirmed. By genome-wide association in European ancestry populations, we found three replicated loci (cases n=5208, within PRNP, STX6, and GAL3ST1) and two further unreplicated loci were significant in gene-wide tests (within PDIA4, BMERB1). Exome sequencing in 407 sCJD cases, conditional and transcription analyses suggest that associations at PRNP and GAL3ST1 are likely to be caused by common variants that alter the protein sequence, whereas risk variants in STX6 and PDIA4 associate with increased expression of the major transcripts in disease-relevant brain regions. Alteration of STX6 expression does not modify prion propagation in a neuroblastoma cell model of mouse prion infection. We went on to analyse the proteins histologically in diseased tissue and examine the effects of risk variants on clinical phenotypes using deep longitudinal clinical cohort data. Risk SNPs in STX6, a protein involved in the intracellular trafficking of proteins and vesicles, are shared with progressive supranuclear palsy, a neurodegenerative disease associated with the misfolded protein tau. We present the first evidence of statistically robust associations in sporadic human prion disease that implicate intracellular trafficking and sphingolipid metabolism. |
| Databáze: | OpenAIRE |
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