Abstract
Conglutinin is a mammalian C-type lectin which shows anti-bacterial activity when tested in vivo and in vitro. This study concerns the effect of conglutinin on the respiratory burst of murine spleen cells, using a chemiluminescence assay for measurement of generated reactive oxygen metabolites. Conglutinin enhances, in a dose-dependent manner, the respiratory burst of spleen cells stimulated with serum-opsonized Escherichia coli. The enhancement was only demonstrable in the presence of a functional complement system. The conglutinin-mediated enhancement of the respiratory burst was inhibited in the presence of a N-acetyl-D-glucosamine, D-mannose and N-acetyl-D-mannosamine, monosaccharides reported to inhibit conglutinin-binding to zymosan and the complement factor iC3b. On the other hand, N-acetyl-D-galactosamine was non-inhibitory.
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Selected References
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- Baatrup G., Thiel S., Isager H., Svehag S. E., Jensenius J. C. Demonstration in human plasma of a lectin activity analogous to that of bovine conglutinin. Scand J Immunol. 1987 Oct;26(4):355–361. doi: 10.1111/j.1365-3083.1987.tb02267.x. [DOI] [PubMed] [Google Scholar]
- Bobak D. A., Gaither T. A., Frank M. M., Tenner A. J. Modulation of FcR function by complement: subcomponent C1q enhances the phagocytosis of IgG-opsonized targets by human monocytes and culture-derived macrophages. J Immunol. 1987 Feb 15;138(4):1150–1156. [PubMed] [Google Scholar]
- Bobak D. A., Washburn R. G., Frank M. M. C1q enhances the phagocytosis of Cryptococcus neoformans blastospores by human monocytes. J Immunol. 1988 Jul 15;141(2):592–597. [PubMed] [Google Scholar]
- Drickamer K. Two distinct classes of carbohydrate-recognition domains in animal lectins. J Biol Chem. 1988 Jul 15;263(20):9557–9560. [PubMed] [Google Scholar]
- Friis-Christiansen P., Thiel S., Svehag S. E., Dessau R., Svendsen P., Andersen O., Laursen S. B., Jensenius J. C. In vivo and in vitro antibacterial activity of conglutinin, a mammalian plasma lectin. Scand J Immunol. 1990 Apr;31(4):453–460. doi: 10.1111/j.1365-3083.1990.tb02792.x. [DOI] [PubMed] [Google Scholar]
- Hirani S., Lambris J. D., Müller-Eberhard H. J. Localization of the conglutinin binding site on the third component of human complement. J Immunol. 1985 Feb;134(2):1105–1109. [PubMed] [Google Scholar]
- Kuhlman M., Joiner K., Ezekowitz R. A. The human mannose-binding protein functions as an opsonin. J Exp Med. 1989 May 1;169(5):1733–1745. doi: 10.1084/jem.169.5.1733. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Lee Y. M., Leiby K. R., Allar J., Paris K., Lerch B., Okarma T. B. Primary structure of bovine conglutinin, a member of the C-type animal lectin family. J Biol Chem. 1991 Feb 15;266(5):2715–2723. [PubMed] [Google Scholar]
- Loveless R. W., Feizi T., Childs R. A., Mizuochi T., Stoll M. S., Oldroyd R. G., Lachmann P. J. Bovine serum conglutinin is a lectin which binds non-reducing terminal N-acetylglucosamine, mannose and fucose residues. Biochem J. 1989 Feb 15;258(1):109–113. doi: 10.1042/bj2580109. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Malhotra R., Thiel S., Reid K. B., Sim R. B. Human leukocyte C1q receptor binds other soluble proteins with collagen domains. J Exp Med. 1990 Sep 1;172(3):955–959. doi: 10.1084/jem.172.3.955. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Rasmussen J. M., Teisner B., Brandt J., Brandslund I., Gry H. Metabolism of C3 and factor B in patients with congenital factor I deficiency. J Clin Lab Immunol. 1990 Feb;31(2):59–67. [PubMed] [Google Scholar]
- Rest R. F., Farrell C. F., Naids F. L. Mannose inhibits the human neutrophil oxidative burst. J Leukoc Biol. 1988 Feb;43(2):158–164. doi: 10.1002/jlb.43.2.158. [DOI] [PubMed] [Google Scholar]
- Teisner B., Elling P., Svehag S. E., Poulsen L., Lamm L. U., Sjöholm A. C3 nephritic factor in a patient with recurrent Neisseria meningitidis infections. Acta Pathol Microbiol Immunol Scand C. 1984 Dec;92(6):341–349. doi: 10.1111/j.1699-0463.1984.tb00098.x. [DOI] [PubMed] [Google Scholar]
- Tenner A. J., Cooper N. R. Stimulation of a human polymorphonuclear leukocyte oxidative response by the C1q subunit of the first complement component. J Immunol. 1982 Jun;128(6):2547–2552. [PubMed] [Google Scholar]
- van Iwaarden F., Welmers B., Verhoef J., Haagsman H. P., van Golde L. M. Pulmonary surfactant protein A enhances the host-defense mechanism of rat alveolar macrophages. Am J Respir Cell Mol Biol. 1990 Jan;2(1):91–98. doi: 10.1165/ajrcmb/2.1.91. [DOI] [PubMed] [Google Scholar]
