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Advancing research on regulatory autoantibodies targeting GPCRs: Insights from the 5th international symposium

Otavio Cabral-Marques*, Lena F. Schimke, Guido Moll, Igor Salerno Filgueiras, Adriel Leal Nóbile, Anny Silva Adri, Fernando Yuri Nery do Vale, Júlia Nakanishi Usuda, Yohan Lucas Gonçalves Corrêa, Débora Albuquerque, Roseane Galdioli Nava, Ronaldy Santana Santos, Haroldo Dutra Dias, Hélio Fernandes Silva, Pedro Batista Marconi, Rusan Catar, Michael Adu-Gyamfi, Pinchao Wang, Taj Ali Khan, Alexander M. HackelAnja Leheis, Anja Stähle, Antje Müller, Carolin Schmidt, Chiara Radunovic, El Baraa Adjailia, Hanna Grasshoff, Jens Y. Humrich, Jonas Menz, Konstantinos Fourlakis, Maike Winziers, Maj Jäpel, Manuel Vincent Wegner, Peter Lamprecht, Relana Nieberding, Reza Akbarzadeh, Sabrina Arnold, Sebastian Jendrek, Sebastian Klapa, Solveig Augustin, Sophie Biedermann, Susanne Schinke, Patrick Scheerer, Matthias Endres, Kai Schulze-Forster, Friedemann Paul, Xinhua Yu, Franziska Sotzny, Thomas P. Sakmar, Miroslaw Banasik, Aiden Haghikia, Markus H. Hoffmann, Dmitry Veprintsev, Torsten Witte, Rodrigo J.S. Dalmolin, Hans D. Ochs, Harald Heidecke, Carmen Scheibenbogen, Yehuda Shoenfeld, Gabriela Riemekasten*

*Korrespondierende/r Autor/-in für diese Arbeit

Abstract

The 5th International Symposium on Regulatory Autoantibodies Targeting GPCR (RAB-GPCRs) advanced the understanding of the significant role played by autoantibodies targeting G-protein-coupled receptors (GPCRs) in various human diseases. Once considered passive markers, RAB-GPCRs are now recognized as active modulators of cellular signaling, immune regulation, and inflammation. The symposium highlighted their involvement in multiple prominent pathologies, including autoimmune diseases, cardio- and cerebrovascular diseases, and neuroimmunologic disorders such as myalgic encephalomyelitis/chronic fatigue syndrome and post-COVID-19 syndrome (ME/CFS/PCS), as well as solid organ and hematopoietic stem cell transplantation (SOT/HSCT). Experts from rheumatology, immunology, and neurology presented interdisciplinary discussions on the potential of RAB-GPCRs as biomarkers and therapeutic targets. Advances in screening methods, biomarker identification, and therapeutic strategies were shared, emphasizing their diagnostic potential and application in novel therapeutic interventions. This report summarizes key insights from the symposium, particularly focusing on the modulatory properties of RAB-GPCRs and their relevance in both immune-mediated diseases and other pathologies (e.g., vascular, degenerative) that are traditionally not considered primarily immune-mediated. Ongoing research is expected to further establish these autoantibodies as crucial components in disease modulation and systems biology contexts, offering new opportunities for precision medicine and improved clinical outcomes in immune-related disorders.

OriginalspracheEnglisch
Aufsatznummer103855
ZeitschriftAutoimmunity Reviews
Jahrgang24
Ausgabenummer9
ISSN1568-9972
DOIs
PublikationsstatusVeröffentlicht - 29.08.2025

Fördermittel

G.M.’s and R.C.’s contributions were made possible by funding from the German Federal Ministry for Education and Research (BMBF) and the German Research Foundation (DFG; Projects NEPHROPROTECTION #394046635 , subproject A03, as part of CRC 1365; EXPAND-PD, #CA2816/1-1 ; and IMMME #01EJ2204A ) and through the BIH Center for Regenerative Therapies (BCRT) and the Berlin-Brandenburg School for Regenerative Therapies (BSRT, GSC203 ), respectively. They were also partially supported by the European Union’s Horizon 2020 Research and Innovation Program under grant agreements No 733006 (PACE) , 779293 (HIPGEN) , 754995 (EU-TRAIN) , and 101095635 (PROTO) . We gratefully acknowledge financial support from the São Paulo Research Foundation (FAPESP) through the following grants: 2018/18886-9 to O.C.M. ; 2020/16246-2 , 40013/2025-3 , 2023/07806-2 to I.S.F. ; 2024/08016-8 to A.L.N. ; 2023/12268-0 to A.S.A. ; and 2023/14417-2 to J.N.U. We also thank the National Council for Scientific and Technological Development (CNPq), Brazil , for grant 309482/2022-4 to O.C.M. , and the Coordination for the Improvement of Higher Education Personnel (CAPES) for the following support: CAPES/PROEX grant 130027/2023-5 to Y.L.G.C. ; and 40013/2025-3 to A.S.A. ; and 88887.699840/2022-00 to F.Y.N.V.

TrägerTrägernummer
Bundesministerium für Bildung und Forschung
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Berlin-Brandenburger Centrum für Regenerative Therapien
Berlin-Brandenburg School for Regenerative TherapiesGSC203
Horizon 2020 Framework Programme754995, 101095635, 733006, 779293
PROEX88887.699840/2022-00, 130027/2023-5
Deutsche Forschungsgemeinschaft394046635, #CA2816/1-1, 01EJ2204A
Fundação de Amparo à Pesquisa do Estado de São Paulo2018/18886-9, 2023/12268-0, 40013/2025-3, 2024/08016-8, 2020/16246-2, 2023/14417-2, 2023/07806-2
Conselho Nacional de Desenvolvimento Científico e Tecnológico309482/2022-4

    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

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