Cited by 137NF-κB Signaling PathwaysT-cell and B-cell ImmunologyImmune Response and Inflammation

The kinase TBK1 controls IgA class switching by negatively regulating noncanonical NF-κB signaling

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Jin, Jin, Xiao, Yichuan, Chang, Jae-Hoon, Yu, Jiayi, Hu, Hongbo, Starr, Robyn, Brittain, George C, Chang, Mikyoung +2 more·2012·Nature Immunology

Abstract

Immunoglobulin class switching is crucial for the generation of antibody diversity in humoral immunity and, when deregulated, also has severe pathological consequences. How the magnitude of immunoglobulin isotype switching is controlled is still poorly understood. Here we identify the kinase TBK1 as a pivotal negative regulator of class switching to the immunoglobulin A (IgA) isotype. B cell-specific ablation of TBK1 in mice resulted in uncontrolled production of IgA and the development of nephropathy-like disease signs. TBK1 negatively regulated IgA class switching by attenuating noncanonical signaling via the transcription factor NF-κB, an action that involved TBK1-mediated phosphorylation and subsequent degradation of the NF-κB-inducing kinase NIK. Our findings establish TBK1 as a pivotal negative regulator of the noncanonical NF-κB pathway and identify a unique mechanism that controls IgA production.

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  • Recent studies have demonstrated critical roles for TBK1 and/or IKKε in regulation of activity of numerous immune cell types, including T cells, B cells, dendritic cells, and macrophages.

    “Recent studies have demonstrated critical roles for TBK1 and/or IKK ε in regulation of activity of numerous immune cell types, including T cells 21 , B cells 22,23 , dendritic cells 24 , and macrophages 25,26 .”

    From Targeting TBK1 to overcome resistance to cancer immunotherapy (2023) · cites this paper as [23]

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Authors
Jin, J., Xiao, Y., Chang, J.-H., Yu, J., Hu, H., Starr, R., Brittain, G. C., Chang, M., Cheng, X., & Sun, S.-C.
Affiliations
  • The University of Texas MD Anderson Cancer Center (US)
  • St Vincents Institute of Medical Research (AU)
Corresponding author
Sun, Shao-Cong
Venue
Nature Immunology
Published
2012-09-30
Volume
13
Issue
11
Pages
1101-1109
ISSN
  • 1529-2908 (ISSN-L)
  • 1529-2916
OpenAlex
W2461505078
Cited by
136
References
53
Citations by year
2026: 8 · 2025: 6 · 2024: 8 · 2023: 10 · 2022: 15 · 2021: 12 · 2020: 12 · 2019: 12 · 2018: 15 · 2017: 7 · 2016: 6 · 2015: 10 · 2014: 5 · 2013: 8 · 2012: 2
FWCI
2.65
Type
journal article
Language
en
Open access
Locations
  • Nature Immunology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Amgen
  • National Cancer Institute (T32CA009598, P30CA016672)
  • National Institute of General Medical Sciences (R01GM084459, GM084459)
  • National Institute of Allergy and Infectious Diseases (AI064639, R01AI057555, R37AI064639, R01AI064639, AI057555)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › NF-κB Signaling Pathways
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
Keywords
TBK1, IgA class switching, non-canonical NF-κB signaling, NIK, B cells, humoral immunity, antibody isotype switching
MeSH terms
NF-kappaB-Inducing Kinase, Animals, B-Lymphocytes, Gene Expression Regulation, Glomerulonephritis, IGA, Immunoglobulin A, Phosphorylation, Signal Transduction, NF-kappa B, Protein Serine-Threonine Kinases, Gene Deletion, Immunoglobulin Class Switching, Mice, Knockout, Mice, Proteolysis

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