FN Archimer Export Format PT J TI Artefactual source of 2-hydroxypyridine BT AF Wilmes, Paul Trezzi, Jean-Pierre Aho, Velma Jäger, Christian Schade, Sebastian Janzen, Annette Hickl, Oskar Kunath, Benoit Thomas, Mélanie Schmit, Kristopher Garcia, Pierre Sciortino, Alessia Martin-Gallausiaux, Camille Halder, Rashi Huarte, Oihane Uriarte Heurtaux, Tony Heins-Marroquin, Ursula Gomez-Giro, Gemma Weidenbach, Katrin Delacour, Léa Laczny, Cédric Novikova, Polina Ramiro-Garcia, Javier Singh, Randolph Andújar, Begoña Talavera Lebrun, Laura Daujeumont, Annegrait Habier, Janine Dong, Xiangyi Gavotto, Floriane Heintz-Buschart, Anna Schneider, Jochen Jehmlich, Nico von Bergen, Martin Schymanski, Emma Schmitz, Ruth Schwamborn, Jens Glaab, Enrico Linster, Carole Kitami, Toshimori Buttini, Manuel May, Patrick Trenkwalder, Claudia Oertel, Wolfgang Mollenhauer, Brit AS 1:1,7;2:1,2;3:1;4:1;5:3,4;6:5;7:1;8:1;9:1,6;10:1,6;11:1,6;12:1,6;13:1;14:1;15:1,6;16:6,7;17:1;18:1;19:8;20:1;21:1;22:1;23:1;24:1,9;25:1;26:1;27:1;28:1;29:1;30:1;31:10;32:1,11;33:12;34:12;35:1;36:8;37:1;38:1;39:1;40:13;41:1,6;42:1;43:4,14;44:5;45:4,5; FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:;13:;14:;15:;16:;17:;18:;19:;20:;21:;22:;23:;24:;25:;26:;27:;28:;29:;30:;31:;32:;33:;34:;35:;36:;37:;38:;39:;40:;41:;42:;43:;44:;45:; C1 Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg Integrated Biobank of Luxembourg, Luxembourg Institute of Health, Dudelange, Luxembourg Department of Neurology, University Medical Center Göttingen, Göttingen, Germany Paracelsus-Elena-Klinik, Kassel, Germany Department of Neurology, Philipps-University Marburg, Marburg, Germany Luxembourg Center of Neuropathology (LCNP), Dudelange, Luxembourg Department of Life Sciences and Medicine, Faculty of Science, Technology and Medicine, University of Luxembourg, Belvaux, Luxembourg Institute for General Microbiology, Christian-Albrechts-Universität zu Kiel, Kiel, Germany Unité Contamination Chimique des Ecosystèmes Marins, IFREMER (Institut Français de Recherche pour l’Exploitation de la Mer), Nantes, France Biosystems Data Analysis, Swammerdam Institute for Life Sciences, Faculty of Science, University of Amsterdam, Amsterdam, The Netherlands Departments of Internal Medicine and Psychiatry and Psychotherapy, Saarland University Medical Center at Homburg/Saar, Homburg, Germany Helmholtz-Zentrum für Umweltforschung – UFZ GmbH, Department Molekulare Systembiologie, Leipzig, Germany RIKEN Center for Integrative Medical Sciences, Kanagawa, Japan Department of Neurosurgery, University Medical Center Göttingen, Göttingen, Germany C2 UNIV LUXEMBOURG, LUXEMBOURG LUXEMBOURG INST HEALTH, LUXEMBOURG UNIV GOTTINGEN, GERMANY PARACELSUS-ELENA-KLINIK, GERMANY UNIV MARBURG, GERMANY LCNP, LUXEMBOURG UNIV LUXEMBOURG, LUXEMBOURG UNIV KIEL, GERMANY Unité Contamination Chimique des Ecosystèmes Marins, IFREMER (Institut Français de Recherche pour l’Exploitation de la Mer), Nantes, France UNIV AMSTERDAM, NETHERLANDS UNIV SAARLAND, GERMANY HELMHOLTZ ZENTRUM, GERMANY RIKEN IMS, JAPAN UNIV GOTTINGEN, GERMANY TC 0 UR https://archimer.ifremer.fr/doc/00785/89741/95233.pdf https://archimer.ifremer.fr/doc/00785/89741/95234.pdf https://archimer.ifremer.fr/doc/00785/89741/95235.pdf https://archimer.ifremer.fr/doc/00785/89741/95236.xlsx https://archimer.ifremer.fr/doc/00785/89741/109629.pdf LA English DT Article AB Patients with Parkinson’s disease (PD) exhibit differences in their gut microbiomes compared to healthy individuals. Although differences have most commonly been described in the abundances of bacterial taxa, changes to viral and archaeal populations have also been observed. Mechanistic links between gut microbes and PD pathogenesis remain elusive but could involve molecules that promote α-synuclein aggregation. Here, we show that 2-hydroxypyridine (2-HP) represents a key molecule for the pathogenesis of PD. We observe significantly elevated 2-HP levels in faecal samples from patients with PD or its prodrome, idiopathic REM sleep behaviour disorder (iRBD), compared to healthy controls. 2-HP is correlated with the archaeal species Methanobrevibacter smithii and with genes involved in methane metabolism, and it is detectable in isolate cultures of M. smithii. We demonstrate that 2-HP is selectively toxic to transgenic α-synuclein overexpressing yeast and increases α-synuclein aggregation in a yeast model as well as in human induced pluripotent stem cell derived enteric neurons. It also exacerbates PD-related motor symptoms, α-synuclein aggregation, and striatal degeneration when injected intrastriatally in transgenic mice overexpressing human α-synuclein. Our results highlight the effect of an archaeal molecule in relation to the gut-brain axis, which is critical for the diagnosis, prognosis, and treatment of PD. PY 2022 PD JUN SO Preprint PU Research Square Platform LLC DI 10.21203/rs.3.rs-1827631/v2 ID 89741 ER EF