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Integrative analysis reveals the autoantibodyome neuroimmune signature of neurodegeneration

Júlia Nakanishi Usuda*, Adriel Leal Nóbile, Fernando Yuri Nery do Vale, Yohan Lucas G. Corrêa, Anny Silva Adri, Roseane Galdioli Nava, Débora Gomes de Albuquerque Freitas, Ronaldy Santana Santos, Lena F. Schimke, Dennyson Leandro M. Fonseca, Gustavo Cabral-Miranda, Taj Ali Khan, Niels Olsen Câmara, Guido Moll, Alexandre H.C. Marques, Rodrigo J.S. Dalmolin, Helder I. Nakaya, Gabriela Riemekasten, Igor Salerno Filgueiras, Haroldo Dutra DiasOtavio Cabral-Marques*

*Korrespondierende/r Autor/-in für diese Arbeit

Abstract

Neurodegenerative disorders, including Alzheimer's disease (AD), Parkinson's disease (PD), and multiple sclerosis (MS), are complex conditions driven by systemic dysregulation that transcends the central nervous system. An integrative systems immunology framework was applied to characterize the neuroimmune “autoantibodyome” across neurodegeneration through an individual participant data meta-analysis of five protein microarray datasets, comprising 596 samples from patients with AD, PD, or MS and healthy controls. We mapped differentially reactive autoantibodies stratified by their targets, unveiling shared features among diseases, such as blood-brain barrier impairment and amplified pro-inflammatory activation, alongside disease-specific perturbations in neuroimmune processes, including short-term memory (AD), skeletal muscle contraction (PD), and pain perception (MS). We identified convergent dysregulation of various autoantibodies targeting diverse synaptic transmission pathways, including gamma-aminobutyric acid (GABA)ergic and glutamatergic signaling. These results indicate the potential of the autoantibodyome to interact with and report on central alterations, suggesting that neurodegeneration may be better understood as a systemic dyshomeostasis.

OriginalspracheEnglisch
Aufsatznummer114781
Zeitschrift iScience
Jahrgang29
Ausgabenummer2
ISSN2589-0042
DOIs
PublikationsstatusVeröffentlicht - 20.02.2026

Fördermittel

We thank the São Paulo Research Foundation (grants 2023/14417-2 to J.N.U., 2024/08016-8 to A.L.N., 2025/07090-2 to F.Y.N.d.V., 2024/22162-7 to R.G.N., 2025/02768-0 to D.G.d.A.F., 2023/13356-0 to D.L.M.F., 2019/14526-0 and 2020/04667-3 to G.C.-M., 2018/149332 to H.I.N., 2020/16246-2 to I.S.F., and 2018/18886-9 to O.C.-M.) for financial support. We also thank the National Council for Scientific and Technological Development (CNPq) (grants 140013/2025-3 to A.S.A., 130027/2023-5 to Y.L.G.C., 102430/2022-5 to L.F.S., and 309482/2022-4 to O.C.-M.) and the Coordination for the Improvement of Higher Education Personnel (CAPES) (CAPES/PROEX grants 88887.917898/2023-00 to J.N.U., 88887.801068/2023-00 to A.L.N., 88887.699840/2022-00 to F.Y.N.d.V., 88887.082794/2024-00 to R.S.S., and 88887.196113/2025-00 to I.S.F.) for financial support. J.N.U. was further supported by Charité, the Medizinische Hochschule Brandenburg Theodor Fontane , and the German Academic Exchange Service (DAAD; Ref. No. 91898528 ). G.M. was supported by grants from the German Federal Ministry of Education and Research (BMBF) and the German Research Foundation (DFG: EXPAND-PD project #CA2816/1 ) and through the BIH Center for Regenerative Therapies (BCRT) and the Berlin-Brandenburg School for Regenerative Therapies (BSRT: GSC203 ), respectively, and in part by the European Union’s Horizon 2020 Research and Innovation Program and the grant agreements no. 733006 (PACE), 779293 (HIPGEN), 754995 (EU-TRAIN), and 101095635 (PROTO). We thank DeMarshall and Nagele et al. for the rich data made publicly available, which was utilized in this study.

TrägerTrägernummer
Bundesministerium für Forschung, Technologie und Raumfahrt
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Medizinische Hochschule Brandenburg Theodor Fontane
Conselho Nacional de Desenvolvimento Científico e Tecnológico102430/2022-5, 309482/2022-4, 140013/2025-3, 130027/2023-5
Deutscher Akademischer Austauschdienst91898528
Horizon 2020 Framework Programme754995, 101095635, 733006, 779293
Fundação de Amparo à Pesquisa do Estado de São Paulo2023/13356-0, 2018/149332, 2018/18886-9, 2025/07090-2, 2024/08016-8, 2019/14526-0, 2024/22162-7, 2020/04667-3, 2025/02768-0, 2020/16246-2, 2023/14417-2
PROEX88887.801068/2023-00, 88887.917898/2023-00, 88887.082794/2024-00, 88887.196113/2025-00, 88887.699840/2022-00
Berlin-Brandenburg School for Regenerative TherapiesGSC203

    UN SDGs

    Dieser Output leistet einen Beitrag zu folgendem(n) Ziel(en) für nachhaltige Entwicklung

    1. SDG 3 – Gesundheit und Wohlergehen
      SDG 3 – Gesundheit und Wohlergehen

    Strategische Forschungsbereiche und Zentren

    • Forschungsschwerpunkt: Infektion und Entzündung - Zentrum für Infektions- und Entzündungsforschung Lübeck (ZIEL)

    DFG-Fachsystematik

    • 2.21-05 Immunologie
    • 2.22-18 Rheumatologie
    • 2.23-05 Experimentelle Modelle zum Verständnis von Erkrankungen des Nervensystems

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