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Bittner, Zsófia Agnes; Liu, Xiao; Mateo Tortola, Maria; Tapia-Abellán, Ana; Shankar, Sangeetha; Andreeva, Liudmila; Mangan, Matthew; Spalinger, Marianne; Kalbacher, Hubert; Düwell, Peter; Lovotti, Marta; Bosch, Karlotta; Dickhöfer, Sabine; Marcu, Ana; Stevanović, Stefan; Herster, Franziska; Cardona Gloria, Yamel; Chang, Tzu-Hsuan; Bork, Francesca; Greve, Carsten L; Löffler, Markus W; Wolz, Olaf-Oliver; Schilling, Nadine A; Kümmerle-Deschner, Jasmin B; Wagner, Samuel; Delor, Anita; Grimbacher, Bodo; Hantschel, Oliver; Scharl, Michael; Wu, Hao; Latz, Eicke; Weber, Alexander N R
The Journal of experimental medicine, 11/2021, Letnik: 218, Številka: 11Journal Article
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.
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Vir: Osebne bibliografije
in: SICRIS
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