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SIGNR1 Ligation on Murine Peritoneal Macrophages Induces IL-12 Production Through NFkappaB Activation

Overview
Journal Glycoconj J
Publisher Springer
Date 2010 Jul 1
PMID 20589530
Citations 3
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Abstract

We have previously shown that murine resident peritoneal macrophages (PEMs) are activated in response to uptake of oligomannose-coated liposomes (OMLs), leading to production of interleukin (IL)-12. To understand the mechanism of activation of PEMs by OMLs, in the present study we investigated the role of a mannose-binding C-type lectin receptor, SIGNR1, in production of proinflammatory cytokines by PEMs, in which SIGNR1 acts as a physiological receptor for OMLs. Engagement of SIGNR1 on PEMs with an anti-SIGNR1-specific rat IgM antibody, ERTR9, induced production of IL-12 and tumor necrosis factor (TNF)-alpha from PEMs, while secretion of IL-6 and IL-1beta was not detected with the same treatment. The level of phosphorylated IkappaB kinase in PEMs also increased in response to ERTR9 treatment of the cells. Treatment of PEMs with a specific nuclear factor kappa-B (NFkappaB) inhibitor, BAY11-7082, reduced ERTR9-dependent IL-12 production. Intraperitoneal treatment with BAY11-7082 also led to reduction of subsequent OML-induced IL-12 production from PEMs. These results indicate that SIGNR1-mediated intercellular signaling may induce production of cytokines such as IL-12 through NFkappaB activation.

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References
1.
Nagaoka K, Takahara K, Tanaka K, Yoshida H, Steinman R, Saitoh S . Association of SIGNR1 with TLR4-MD-2 enhances signal transduction by recognition of LPS in gram-negative bacteria. Int Immunol. 2005; 17(7):827-36. PMC: 1343522. DOI: 10.1093/intimm/dxh264. View

2.
Kawai T, Akira S . Pathogen recognition with Toll-like receptors. Curr Opin Immunol. 2005; 17(4):338-44. DOI: 10.1016/j.coi.2005.02.007. View

3.
Avrameas A, McIlroy D, Hosmalin A, Autran B, Debre P, Monsigny M . Expression of a mannose/fucose membrane lectin on human dendritic cells. Eur J Immunol. 1996; 26(2):394-400. DOI: 10.1002/eji.1830260219. View

4.
Geijtenbeek T, Torensma R, van Vliet S, van Duijnhoven G, Adema G, van Kooyk Y . Identification of DC-SIGN, a novel dendritic cell-specific ICAM-3 receptor that supports primary immune responses. Cell. 2000; 100(5):575-85. DOI: 10.1016/s0092-8674(00)80693-5. View

5.
Ishii M, Kojima N . Mucosal adjuvant activity of oligomannose-coated liposomes for nasal immunization. Glycoconj J. 2009; 27(1):115-23. DOI: 10.1007/s10719-009-9263-8. View