Abstract
An extracellular polysaccharide was purified from culture supernatants of Capnocytophaga ochracea 25, a gram-negative bacillus associated with human periodontal disease. The extracellular polysaccharide suppressed in vitro mitogenic responses of murine splenic lymphocytes to concanavalin A and lipopolysaccharide. This suppression wad dose dependent, persisted up to 120 h, and was not caused by direct toxicity of the extracellular polysaccharide.
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- Battisto J. R., Pappas F. Regulation of immunoglobulin synthesis by dextran. J Exp Med. 1973 Jul 1;138(1):176–193. doi: 10.1084/jem.138.1.176. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Bolton R. W. Modulation of murine lymphocyte mitogen responses by glycerol-teichoic acid. Immunol Commun. 1981;10(7):631–640. doi: 10.3109/08820138109050715. [DOI] [PubMed] [Google Scholar]
- Celesk R. A., McCabe R. M., London J. Colonization of the cementum surface of teeth by oral Gram-negative bacteria. Infect Immun. 1979 Oct;26(1):15–18. doi: 10.1128/iai.26.1.15-18.1979. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Chisari F. V., Northrup R. S., Chen L. C. The modulating effect of cholera enterotoxin on the immune response. J Immunol. 1974 Sep;113(3):729–739. [PubMed] [Google Scholar]
- Franzl R. E., McMaster P. D. The primary immune response in mice. I. The enhancement and suppression of hemolysin production by a bacterial endotoxin. J Exp Med. 1968 Jun 1;127(6):1087–1107. doi: 10.1084/jem.127.6.1087. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kabir S., Rosenstreich D. L. Binding of bacterial endotoxin to murine spleen lymphocytes. Infect Immun. 1977 Jan;15(1):156–164. doi: 10.1128/iai.15.1.156-164.1977. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Leadbetter E. R., Holt S. C., Socransky S. S. Capnocytophaga: new genus of gram-negative gliding bacteria. I. General characteristics, taxonomic considerations and significance. Arch Microbiol. 1979 Jul;122(1):9–16. doi: 10.1007/BF00408040. [DOI] [PubMed] [Google Scholar]
- McGhee J. R., Kiyono H., Michalek S. M., Babb J. L., Rosenstreich D. L., Mergenhagen S. E. Lipopolysaccharide (LPS) regulation of the immune response: T lymphocytes from normal mice suppress mitogenic and immunogenic responses to LPS. J Immunol. 1980 Apr;124(4):1603–1611. [PubMed] [Google Scholar]
- Norcross M. A., Smith R. T. Regulation of B-cell proliferative responses to lipopolysaccharide by a subclass of thymus T cells. J Exp Med. 1977 May 1;145(5):1299–1315. doi: 10.1084/jem.145.5.1299. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Page R. C., Schroeder H. E. Current status of the host response in chronic marginal periodontitis. J Periodontol. 1981 Sep;52(9):477–491. doi: 10.1902/jop.1981.52.9.477. [DOI] [PubMed] [Google Scholar]
- Rosenstreich D. L., Farrar J. J., Dougherty S. Absolute macrophage dependency of T lymphocyte activation by mitogens. J Immunol. 1976 Jan;116(1):131–139. [PubMed] [Google Scholar]
- Schwab J. H. Suppression of the immune response by microorganisms. Bacteriol Rev. 1975 Jun;39(2):121–143. doi: 10.1128/br.39.2.121-143.1975. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Shenker B. J., McArthur W. P., Tsai C. C. Immune suppression induced by Actinobacillus actinomycetemcomitans. I. Effects on human peripheral blood lymphocyte responses to mitogens and antigens. J Immunol. 1982 Jan;128(1):148–154. [PubMed] [Google Scholar]
- Socransky S. S., Holt S. C., Leadbetter E. R., Tanner A. C., Savitt E., Hammond B. F. Capnocytophaga: new genus of gram-negative gliding bacteria. III. Physiological characterization. Arch Microbiol. 1979 Jul;122(1):29–33. doi: 10.1007/BF00408042. [DOI] [PubMed] [Google Scholar]
- Stevens R. H., Sela M. N., McArthur W. P., Nowotny A., Hammond B. F. Biological and chemical characterization of endotoxin from Capnocytophaga sputigena. Infect Immun. 1980 Jan;27(1):246–254. doi: 10.1128/iai.27.1.246-254.1980. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Unanue E. R. The regulatory role of macrophages in antigenic stimulation. Part Two: symbiotic relationship between lymphocytes and macrophages. Adv Immunol. 1981;31:1–136. doi: 10.1016/s0065-2776(08)60919-0. [DOI] [PubMed] [Google Scholar]