Cited by 105interferon and immune responsesImmune Response and InflammationNF-κB Signaling Pathways

TBK1, a central kinase in innate immune sensing of nucleic acids and beyond

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Zhou, Ruyuan, Zhang, Qian, Xu, Pinglong·2020·Acta Biochimica et Biophysica Sinica

Abstract

Sensing of intracellular and extracellular environments is one of the fundamental processes of cell. Surveillance of aberrant nucleic acids, derived either from invading pathogens or damaged organelle, is conducted by pattern recognition receptors (PRRs) including RIG-I-like receptors, cyclic GMP-AMP synthase, absent in melanoma 2, and a few members of toll-like receptors. TANK-binding kinase 1 (TBK1), along with its close analogue I-kappa-B kinase epsilon, is a central kinase in innate adaptor complexes linking activation of PRRs to mobilization of transcriptional factors that transcribe proinflammatory cytokines, type I interferon (IFN-α/β), and myriads interferon stimulated genes. However, it still remains elusive for the precise mechanisms of activation and execution of TBK1 in signaling platforms formed by innate adaptors mitochondrial antiviral signaling protein (MAVS), stimulator of interferon genes protein (STING), and TIR-domain-containing adapter-inducing interferon-β (TRIF), as well as its complex regulations. An atlas of TBK1 substrates is in constant expanding, setting TBK1 as a key node of signaling network and a dominant player in contexts of cell biology, animal models, and human diseases. Here, we review recent advancements of activation, regulations, and functions of TBK1 under these physiological and pathological contexts.

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  • TBK1 plays a central role in coordinating the innate immune response to cytosolic nucleic acids (cGAS-STING-TBK1-IRF3-IFN type I pathway), and enhanced sensitivity to TNFα has been shown to drive cGAS-STING-dependent interferon response and impact cell viability.

    “TBK1 plays a central role in coordinating the innate immune response in response to cytosolic nucleic acids (e.g. cGAS-STING-TBK1-IRF3-IFN type I pathway) 3 , and enhanced sensitivity to TNF α has been shown to drive cGAS-STING-dependent interferon response and impact cell viability 42 .”

    From Targeting TBK1 to overcome resistance to cancer immunotherapy (2023) · cites this paper as [3]

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  • TBK1 integrates upstream signals from pattern recognition receptors and cytosolic nucleic acid sensors to regulate activation of IRF3 and induction of type I interferons and ISGs critical to host immune response.

    “TBK1 integrates upstream signals from pattern recognition receptors and cytosolic nucleic acid sensors to regulate the activation of interferon regulatory factor 3 (IRF3) and consequent induction of type I interferons (IFNα / β ) and interferon-stimulated genes (ISGs) critical to the host immune response 3 .”

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Authors
Zhou, R., Zhang, Q., & Xu, P.
Affiliations
  • Zhejiang University (CN)
  • First Affiliated Hospital Zhejiang University (CN)
Venue
Acta Biochimica et Biophysica Sinica
Published
2020-05-01
Volume
52
Issue
7
Pages
757-767
ISSN
1672-9145 (ISSN-L)
OpenAlex
W3032346199
Cited by
104
References
155
Citations by year
2026: 21 · 2025: 9 · 2024: 28 · 2023: 18 · 2022: 11 · 2021: 15 · 2020: 2
FWCI
1.15
Type
journal article
Language
en
Open access
Locations
  • Acta Biochimica et Biophysica Sinica (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Initiative Postdocs Supporting Program
  • National Natural Science Foundation of China (81902915, 31830052)
  • National Natural Science Foundation of China Distinguished Young Scholars Program (31725017)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › interferon and immune responses
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › NF-κB Signaling Pathways
Keywords
TBK1, innate immunity, nucleic acid sensing, pattern recognition receptors, RIG-I-like receptors, STING, MAVS, TRIF, type I interferon, inflammatory cytokines, interferon-stimulated genes, kinase activation, kinase substrates, antiviral signaling
MeSH terms
Animals, Humans, Nucleic Acids, Transcription, Genetic, Signal Transduction, Interferon-alpha, Interferon-beta, Protein Serine-Threonine Kinases, Receptors, Pattern Recognition

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