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Cited by 344

The DOI matches its Crossref record; 63 of the 63 references it cites were found in a registry or an index.

NOD2/CARD15 Mediates Induction of the Antimicrobial Peptide Human Beta-defensin-2

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Voss, Eske, Wehkamp, Jan, Wehkamp, Kai, Stange, Eduard F., Schröder, Jens M., Harder, Jürgen·2006·Journal of Biological Chemistry

Abstract

Production of inducible antimicrobial peptides offers a first and rapid defense response of epithelial cells against invading microbes. Human beta-defensin-2 (hBD-2) is an antimicrobial peptide induced in various epithelia upon extracellular as well as intracellular bacterial challenge. Nucleotide-binding oligomerization domain protein 2 (NOD2/CARD15) is a cytosolic protein involved in intracellular recognition of microbes by sensing peptidoglycan fragments (e.g. muramyl dipeptide). We used luciferase as a reporter gene for a 2.3-kb hBD-2 promoter to test the hypothesis that NOD2 mediates the induction of hBD-2. Activation of NOD2 in NOD2-overexpressing human embryonic kidney 293 cells through its ligand muramyl dipeptide (MDP) induced hBD-2 expression. In contrast, overexpression of NOD2 containing the 3020insC frame-shift mutation, the most frequent NOD2 variant associated with Crohn disease, resulted in defective induction of hBD-2 through MDP. Luciferase gene reporter analyses and site-directed mutagenesis experiments demonstrated that functional binding sites for NF-kappaB and AP-1 in the hBD-2 promoter are required for NOD2-mediated induction of hBD-2 through MDP. Moreover, the NF-kappaB inhibitor Helenalin as well as a super-repressor form of the NF-kappaB inhibitor IkappaB strongly inhibited NOD2-mediated hBD-2 promoter activation. Expression of NOD2 was detected in primary keratinocytes, and stimulation of these cells with MDP induced hBD-2 peptide release. In contrast, small interference RNA-mediated down-regulation of NOD2 expression in primary keratinocytes resulted in a defective induction of hBD-2 upon MDP treatment. Together, these data suggest that NOD2 serves as an intracellular pattern recognition receptor to enhance host defense by inducing the production of antimicrobial peptides such as hBD-2.

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Metadata

Authors
Voss, E., Wehkamp, J., Wehkamp, K., Stange, E. F., Schröder, J. M., & Harder, J.
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2006-01
Volume
281
Issue
4
Pages
2005-2011
ISSN
0021-9258 (ISSN-L)
OpenAlex
W2042675697
Cited by
344
References
63
FWCI
19.86
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: NOD2/CARD15 Mediates Induction of the Antimicrobial Peptide Human Beta-defensin-2. https://app.cochat.ai/papers/10.1074/jbc.m511044200
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Voss, E., Wehkamp, J., Wehkamp, K., Stange, E. F., Schröder, J. M., & Harder, J. (2006). NOD2/CARD15 Mediates Induction of the Antimicrobial Peptide Human Beta-defensin-2. Journal of Biological Chemistry. https://doi.org/10.1074/jbc.m511044200

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