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Protective effects of HLA-DRB1*04 subtypes in Parkinson's and Alzheimer's diseases implicate acetylated Tau PHF6 sequences

By Yann Le Guen, Guo Luo, Aditya Ambati, Vincent Damotte, Iris Jansen, Eric Yu, Aude Nicolas, Itziar de Rojas, Thiago Peixoto Leal, Akinori Miyashita, Celine Bellenguez, Michelle Mulan Lian, Kayenat Parveen, Takashi Morizono, Hyeonseul Park, Benjamin Grenier-Boley, Tatsuhiko Naito, Fahri Kucukali, Seth D. Talyansky, Selina Maria Yogeshwar, Vicente Sempere, Satake Wataru, Victoria Alvarez, Beatrice Arosio, Michael E Belloy, Luisa Benussi, Anne Boland, Barbara Borroni, Maria J Bullido, Paolo Caffarra, Jordi Clarimon, Antonio Daniele, Daniel Darling, Stephanie Debette, Jean-Francois Deleuze, Martin Dichgans, Carole Dufouil, Emmanuel H. During, Emrah Duzel, Daniela Galimberti, Guillermo Garcia-Ribas, Jose Maria Garcia-Alberca, Pablo Garcia-Gonzalez, Vilmantas Giedraitis, Oliver Goldhardt, Caroline Graff, Edna Grunblatt, Olivier Hanon, Lucrezia Hausner, Stefanie Heilmann-Heimbach, Henne Holstege, Jakub Hort, Yoo Jin Jung, Deckert Jurgen, Silke Kern, Teemu Kuulasmaa, Ling Ling, Carlo Masullo, Patrizia Mecocci, Shima Mehrabian, Alexandre de Mendonca, Merce Boada, Pablo Mir, Susanne Moebus, Fermin Moreno, Benedetta Nacmias, Gael Nicolas, Borge G Nordestgaard, Goran Papenberg, Janne M. Papma, Lucilla Parnetti, Florence Pasquier, Pau Pastor, Oliver Peters, Yolande A.L. Pijnenburg, Gerard Pinol-Ripoll, Julius Popp, Laura Molina Porcel, Raquel Puerta, Jordi Perez-Tur, Innocenzo Rainero, Inez Ramakers, Luis M. Real, Steffi Riedel-Heller, Eloy Rodriguez-Rodriguez, Jose Luis Royo, Dan Rujescu, Nikolaos Scarmeas, Philip Scheltens, Norbert Scherbaum, Anja Schneider, Davide Seripa, Ingmar Skoog, Vincenzo Solfrizzi, Gianfranco Spalletta, Alessio Squassina, John van Swieten, Raquel Sanchez-Valle, Eng-King Tan, Thomas Tegos, Charlotte Teunissen, Jesper Qvist Thomassen, Lucio Tremolizzo, Martin VYHNALEK, Frans Verhey, Margda Waern, Jens Wiltfang, Jing Zhang, Henrik Zetterberg, EADB, GR@ACE, DEGESCO, Demgene, EADI, GERAD, Asian Parkinson Disease Genetics, Kaj Blennow, Julie Williams, Philippe Amouyel, Frank Jessen, Patrick G. Kehoe, Ole Andreassen, Cornelia Van Duin, Tsolaki Magda, Pascual Sanchez-Juan, Ruth Frikke-Schmidt, Kristel Sleegers, Tatsushi Toda, Anna Zettergren, Martin Ingelsson, Yukinori Okada, Giacomina Rossi, Mikko Hiltunen, Jungsoo Gim, Kouichi Ozaki, Rebecca Sims, Jia Nee Foo, Wiesje M. van der Flier, Takeshi Ikeuchi, Alfredo F Ramirez, Ignacio Mata, Agustin Ruiz, Ziv Gan-Or, Jean-Charles D. Lambert, Michael Greicius, Emmanuel Mignot

Posted 30 Dec 2021
medRxiv DOI: 10.1101/2021.12.26.21268354

Using genome-wide association data, we analyzed Human Leukocyte Antigen (HLA) associations in over 176,000 individuals with Parkinson's (PD) or Alzheimer's (AD) disease versus controls across ancestry groups. A shared genetic association was observed across diseases at rs601945 (PD: odds ratio (OR)=0.84; 95% confidence interval, [0.80; 0.88]; p=2.2x10-13; AD: OR=0.91[0.89; 0.93]; p=1.8x10-22), and with a protective HLA association recently reported in amyotrophic lateral sclerosis (ALS). Hierarchical protective effects of HLA-DRB1*04 subtypes best accounted for the association, strongest with HLA-DRB1*04:04 and HLA-DRB1*04:07, intermediary with HLA-DRB1*04:01 and HLA-DRB1*04:03, and absent for HLA-DRB1*04:05. The same signal was associated with decreased neurofibrillary tangles (but not neuritic plaque density) in postmortem brain and was more strongly associated with Tau levels than A{beta}42 levels in the cerebrospinal fluid. Finally, protective HLA-DRB1*04 subtypes strongly bound aggregation-prone Tau PHF6 sequence, but only when acetylated at K311, a modification central to aggregation. A HLA-DRB1*04-mediated adaptive immune response, potentially against Tau, decreases PD, AD and ALS risk, offering the possibility of new therapeutic avenues.

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