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PMID: 12202685 Published · ppublish English Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, P.H.S.

Macrophage apoptosis by anthrax lethal factor through p38 MAP kinase inhibition.

Science (New York, N.Y.) ·Vol. 297 ·No. 5589 ·2002-09-20 ·Pages 2048-51

Park JM, Greten FR, Li ZW, Karin M

Abstract

The bacterium Bacillus anthracis causes the death of macrophages, which may allow it to avoid detection by the innate immune system. We found that B. anthracis lethal factor (LF) selectively induces apoptosis of activated macrophages by cleaving the amino-terminal extension of mitogen-activated protein kinase (MAPK) kinases (MKKs) that activate p38 MAPKs. Because macrophages that are deficient in transcription factor nuclear factor kappaB (NF-kappaB) are also sensitive to activation-induced death and p38 is required for expression of certain NF-kappaB target genes, p38 is probably essential for synergistic induction of those NF-kappaB target genes that prevent apoptosis of activated macrophages. This dismantling of the p38 MAPK module represents a strategy used by B. anthracis to paralyze host innate immunity.

MeSH Terms
Animals Antigens, Bacterial Apoptosis Bacterial Toxins/toxicity Calcium-Calmodulin-Dependent Protein Kinases/genetics,metabolism Carrier Proteins/toxicity Cell Line Enzyme Activation Enzyme Inhibitors/pharmacology Gene Expression I-kappa B Kinase Imidazoles/pharmacology Lipopolysaccharides/pharmacology MAP Kinase Kinase 3 MAP Kinase Kinase 6 MAP Kinase Signaling System Macrophage Activation Macrophages/enzymology,immunology,physiology Mice Mice, Inbred C57BL Mitogen-Activated Protein Kinase Kinases/genetics,metabolism Mitogen-Activated Protein Kinases/antagonists & inhibitors,metabolism NF-kappa B/genetics,metabolism Necrosis Protein Serine-Threonine Kinases/genetics,metabolism Protein-Tyrosine Kinases/genetics,metabolism Pyridines/pharmacology Teichoic Acids/pharmacology Transcription Factor RelA p38 Mitogen-Activated Protein Kinases
Chemicals
Antigens, Bacterial Bacterial Toxins Carrier Proteins Enzyme Inhibitors Imidazoles Lipopolysaccharides NF-kappa B Pyridines Teichoic Acids Transcription Factor RelA anthrax toxin lipoteichoic acid Protein-Tyrosine Kinases Protein Serine-Threonine Kinases Chuk protein, mouse I-kappa B Kinase Ikbkb protein, mouse Ikbke protein, mouse Calcium-Calmodulin-Dependent Protein Kinases Mitogen-Activated Protein Kinases p38 Mitogen-Activated Protein Kinases MAP Kinase Kinase 3 MAP Kinase Kinase 6 Map2k3 protein, mouse Map2k6 protein, mouse Mitogen-Activated Protein Kinase Kinases 4-(4-fluorophenyl)-2-(4-hydroxyphenyl)-5-(4-pyridyl)imidazole
Authors & Affiliations
4 authors, click to expand affiliations / ORCID
Park Jin Mo
Laboratory of Gene Regulation and Signal Transduction, Department of Pharmacology, School of Medicine, University of California, San Diego, La Jolla, CA 92093-0636, USA.
Greten Florian R
Li Zhi-Wei
Karin Michael
Article Info
Journal
Science (New York, N.Y.)
Abbr.
Science
ISSN
1095-9203
Published
2002-09-20
Epub
2002-00-29
Pages
2048-51
Language
English
Region
United States
NLM ID
0404511
Subset
IM
Grants
NIAID NIH HHS · AI43477 · United States
NIEHS NIH HHS · ES04151 · United States
NIEHS NIH HHS · ES06376 · United States
NIEHS NIH HHS · ES10337 · United States
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