Human TBK1 deficiency leads to autoinflammation driven by TNF-induced cell death.
In: Cell, Jg. 184 (2021-08-19), Heft 17, S. 4447
Online
academicJournal
Zugriff:
TANK binding kinase 1 (TBK1) regulates IFN-I, NF-κB, and TNF-induced RIPK1-dependent cell death (RCD). In mice, biallelic loss of TBK1 is embryonically lethal. We discovered four humans, ages 32, 26, 7, and 8 from three unrelated consanguineous families with homozygous loss-of-function mutations in TBK1. All four patients suffer from chronic and systemic autoinflammation, but not severe viral infections. We demonstrate that TBK1 loss results in hypomorphic but sufficient IFN-I induction via RIG-I/MDA5, while the system retains near intact IL-6 induction through NF-κB. Autoinflammation is driven by TNF-induced RCD as patient-derived fibroblasts experienced higher rates of necroptosis in vitro, and CC3 was elevated in peripheral blood ex vivo. Treatment with anti-TNF dampened the baseline circulating inflammatory profile and ameliorated the clinical condition in vivo. These findings highlight the plasticity of the IFN-I response and underscore a cardinal role for TBK1 in the regulation of RCD.
Competing Interests: Declaration of interests D.B. is the founder of Lab11 Therapeutics.
(Copyright © 2021 Elsevier Inc. All rights reserved.)
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Human TBK1 deficiency leads to autoinflammation driven by TNF-induced cell death.
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Autor/in / Beteiligte Person: | Taft, J ; Markson, M ; Legarda, D ; Patel, R ; Chan, M ; Malle, L ; Richardson, A ; Gruber, C ; Martín-Fernández, M ; Mancini, GMS ; van Laar JAM ; van Pelt P ; Buta, S ; Wokke, BHA ; Sabli, IKD ; Sancho-Shimizu, V ; Chavan, PP ; Schnappauf, O ; Khubchandani, R ; Cüceoğlu, MK ; Özen, S ; Kastner, DL ; Ting, AT ; Aksentijevich, I ; Hollink, IHIM ; Bogunovic, D |
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Zeitschrift: | Cell, Jg. 184 (2021-08-19), Heft 17, S. 4447 |
Veröffentlichung: | Cambridge, Ma : Cell Press ; <i>Original Publication</i>: Cambridge, MIT Press., 2021 |
Medientyp: | academicJournal |
ISSN: | 1097-4172 (electronic) |
DOI: | 10.1016/j.cell.2021.07.026 |
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