Cited by 288NF-κB Signaling PathwaysCell death mechanisms and regulationImmune Response and Inflammation

The DOI matches its Crossref record; 64 of the 65 references it cites were found in a registry or an index.

IKKβ Is Required for Prevention of Apoptosis Mediated by Cell-Bound but Not by Circulating TNFα

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Abstract

IkappaB kinase beta (IKKbeta) is required for NF-kappaB activation and suppression of TNFalpha-mediated liver apoptosis. To investigate how IKKbeta suppresses apoptosis, we generated hepatocyte-specific Ikkbeta knockout mice, Ikkbeta(Deltahep), which exhibit little residual NF- kappaB activity but are healthy with normal liver function. Unexpectedly, Ikkbeta(Deltahep) mice are slightly more sensitive than controls to LPS-induced liver apoptosis but are highly susceptible to liver destruction following concanavalin A (ConA)-induced T cell activation. Unlike LPS, a potent inducer of circulating TNFalpha, ConA exerts cytotoxic effects through cell-bound TNFalpha, which activates type 1 and 2 TNF receptors (TNFR). While TNFR2 does not contribute to NF-kappaB activation, it is important for ConA-induced JNK activation, which is augmented by the absence of IKKbeta. Using JNK-deficient mice we show that JNK is required for ConA-induced liver damage. Thus, the antiapoptotic function of IKKbeta, which is most critical in situations that involve cell-bound TNFalpha, is mediated partially through attenuation of JNK activity.

Overview

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Crossref · 10.1016/s1074-7613(03)00301-7

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64 of 64 references verified0 citation errors · 0 not checkable

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Research works printed but not linked: 1

  1. Gantner, 1995, Concanavalin A-induced T-cell-mediated hepatic injury in mice, Hepatology, 21, 190

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Metadata

Authors
Maeda, S., Chang, L., Li, Z.-W., Luo, J.-L., Leffert, H., & Karin, M.
Affiliations
University of California San Diego (US)
Corresponding author
Karin, Michael
Venue
Immunity
Publisher
Elsevier BV
Published
2003-11
Volume
19
Issue
5
Pages
725-737
ISSN
1074-7613 (ISSN-L)
OpenAlex
W2057942179
Cited by
286
References
65
Citations by year
2024: 3 · 2023: 3 · 2022: 4 · 2021: 7 · 2020: 7 · 2019: 4 · 2018: 6 · 2017: 11 · 2016: 12 · 2015: 9 · 2014: 9 · 2013: 12 · 2012: 16
FWCI
8.58
Type
journal article
Language
en
Open access
Locations
  • Immunity (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institute of Allergy and Infectious Diseases (AI 43477)
  • National Institute of Environmental Health Sciences (P42ES010337, ES10337, ES 06376, R01ES006376)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › NF-κB Signaling Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
Keywords
IκB kinase β, NF-κB activation, apoptosis, TNF receptor 2, JNK, concanavalin A, T cell activation, liver injury, hepatocyte-specific knockout mice, antiapoptotic function
MeSH terms
Animals, Concanavalin A, Lipopolysaccharides, Liver, Mice, Inbred C57BL, T-Lymphocytes, Tumor Necrosis Factor-alpha, Antigens, CD, Apoptosis, Protein Serine-Threonine Kinases, Receptors, Tumor Necrosis Factor, Mice, Knockout, Mitogen-Activated Protein Kinases, Receptors, Tumor Necrosis Factor, Type II, JNK Mitogen-Activated Protein Kinases, Mice, I-kappa B Kinase

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