BTK operates a phospho-tyrosine switch to regulate NLRP3 inflammasome activity

Author:

Bittner Zsófia Agnes1ORCID,Liu Xiao1ORCID,Mateo Tortola Maria1ORCID,Tapia-Abellán Ana1ORCID,Shankar Sangeetha1ORCID,Andreeva Liudmila23ORCID,Mangan Matthew45ORCID,Spalinger Marianne6ORCID,Kalbacher Hubert7ORCID,Düwell Peter4ORCID,Lovotti Marta4ORCID,Bosch Karlotta1ORCID,Dickhöfer Sabine1ORCID,Marcu Ana1ORCID,Stevanović Stefan1ORCID,Herster Franziska1ORCID,Cardona Gloria Yamel1ORCID,Chang Tzu-Hsuan1ORCID,Bork Francesca1ORCID,Greve Carsten L.1ORCID,Löffler Markus W.18910ORCID,Wolz Olaf-Oliver1ORCID,Schilling Nadine A.11ORCID,Kümmerle-Deschner Jasmin B.12ORCID,Wagner Samuel1314ORCID,Delor Anita15ORCID,Grimbacher Bodo1516171819ORCID,Hantschel Oliver20ORCID,Scharl Michael6ORCID,Wu Hao23ORCID,Latz Eicke421ORCID,Weber Alexander N.R.1101422ORCID

Affiliation:

1. Interfaculty Institute for Cell Biology, Department of Immunology, University of Tübingen, Tübingen, Germany

2. Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA

3. Program in Cellular and Molecular Medicine, Boston Children’s Hospital, Boston, MA

4. Institute of Innate Immunity, University Hospital Bonn, Bonn, Germany

5. German Center for Neurodegenerative Diseases, Bonn, Germany

6. Department for Gastroenterology and Hepatology, University Hospital Zürich and University of Zürich, Zürich, Switzerland

7. Interfaculty Institute of Biochemistry, University of Tübingen, Tübingen, Germany

8. Department of General, Visceral and Transplant Surgery, University Hospital Tübingen, Tübingen, Germany

9. Department of Clinical Pharmacology, University Hospital Tübingen, Tübingen, Germany

10. Cluster of Excellence 2180, Image-Guided and Functionally Instructed Tumor Therapies, University of Tübingen, Tübingen, Germany

11. Institute of Organic Chemistry, University of Tübingen, Tübingen, Germany

12. Division of Pediatric Rheumatology and Autoinflammation Reference Center Tübingen, Department of Pediatrics, University Hospital Tübingen, Tübingen, Germany

13. Interfaculty Institute of Microbiology and Infection Medicine, University of Tübingen, Tübingen, Germany

14. Cluster of Excellence 2124, Controlling Microbes to Fight Infection, University of Tübingen, Tübingen, Germany.

15. Centre of Chronic Immunodeficiency, University Hospital Freiburg, Freiburg, Germany

16. Institute for Immunodeficiency, Center for Chronic Immunodeficiency, Medical Center, Faculty of Medicine, Albert-Ludwigs University, Freiburg, Germany

17. German Center for Infection Research, Freiburg, Germany

18. Center for Integrative Biological Signaling Studies, Albert-Ludwigs University, Freiburg, Germany

19. Cluster of Excellence 2155, Resolving Infection Susceptibility, Hanover Medical School, Freiburg, Germany

20. Institute of Physiological Chemistry, Faculty of Medicine, Philipps University of Marburg, Marburg, Germany

21. Division of Infectious Diseases and Immunology, University of Massachusetts, Worcester, MA

22. German Cancer Consortium, Tübingen, Germany

Abstract

Activity of the NLRP3 inflammasome, a critical mediator of inflammation, is controlled by accessory proteins, posttranslational modifications, cellular localization, and oligomerization. How these factors relate is unclear. We show that a well-established drug target, Bruton’s tyrosine kinase (BTK), affects several levels of NLRP3 regulation. BTK directly interacts with NLRP3 in immune cells and phosphorylates four conserved tyrosine residues upon inflammasome activation, in vitro and in vivo. Furthermore, BTK promotes NLRP3 relocalization, oligomerization, ASC polymerization, and full inflammasome assembly, probably by charge neutralization, upon modification of a polybasic linker known to direct NLRP3 Golgi association and inflammasome nucleation. As NLRP3 tyrosine modification by BTK also positively regulates IL-1β release, we propose BTK as a multifunctional positive regulator of NLRP3 regulation and BTK phosphorylation of NLRP3 as a novel and therapeutically tractable step in the control of inflammation.

Funder

Else-Kröner-Fresenius Stiftung

Deutsche Forschungsgemeinschaft

University Hospital Tübingen

IFM Therapeutics

E-Rare program

German Research Foundation

Federal Ministry of Education and Research

Damon Runyon Cancer Research Foundation

University of Tübingen

Publisher

Rockefeller University Press

Subject

Immunology,Immunology and Allergy

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