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Takahashi T, Nishihara T, Ishihara Y, et al. Murine macrophage interleukin-1 release by capsularlike serotype-specific polysaccharide antigens of Actinobacillus actinomycetemcomitans. Infect Immun. 1991;59(1):18-23doi: 10.1128/iai.59.1.18-23.1991.
Takahashi, T., Nishihara, T., Ishihara, Y., Amano, K., Shibuya, N., Moro, I., & Koga, T. (1991). Murine macrophage interleukin-1 release by capsularlike serotype-specific polysaccharide antigens of Actinobacillus actinomycetemcomitans. Infection and immunity, 59(1), 18-23. https://doi.org/10.1128/iai.59.1.18-23.1991
Takahashi, T, et al. "Murine macrophage interleukin-1 release by capsularlike serotype-specific polysaccharide antigens of Actinobacillus actinomycetemcomitans." Infection and immunity vol. 59,1 (1991): 18-23. doi: https://doi.org/10.1128/iai.59.1.18-23.1991
Takahashi T, Nishihara T, Ishihara Y, Amano K, Shibuya N, Moro I, Koga T. Murine macrophage interleukin-1 release by capsularlike serotype-specific polysaccharide antigens of Actinobacillus actinomycetemcomitans. Infect Immun. 1991 Jan;59(1):18-23. doi: 10.1128/iai.59.1.18-23.1991. PMID: 1987032; PMCID: PMC257699.
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Infect Immun. 1991 Jan;59(1):18-23. doi: 10.1128/iai.59.1.18-23.1991.

Murine macrophage interleukin-1 release by capsularlike serotype-specific polysaccharide antigens of Actinobacillus actinomycetemcomitans.

Infection and immunity

T Takahashi, T Nishihara, Y Ishihara, K Amano, N Shibuya, I Moro, T Koga

Affiliations

  1. Department of Dental Research, National Institute of Health, Tokyo, Japan.

PMID: 1987032 PMCID: PMC257699 DOI: 10.1128/iai.59.1.18-23.1991
Free PMC Article

Abstract

Serotype-specific polysaccharide antigens (SPAs) were extracted from whole cells of Actinobacillus actinomycetemcomitans ATCC 29523 (serotype a), Y4 (serotype b), and NCTC 9710 (serotype c) by autoclaving and purified by chromatography on DEAE-Sephadex A-25 and Sephacryl S-300 columns. Y4 SPA induced interleukin-1 (IL-1) release by P388D1 murine macrophages. Polymyxin B had virtually no effect on the release of IL-1. Rabbit anti-murine IL-1 serum strongly suppressed the proliferation of C3H/HeJ mouse thymocytes induced with the culture supernatants of Y4 SPA-stimulated P388D1 cells and a submitogenic dose of concanavalin A. Gel filtration of the culture supernatants of Y4 SPA-stimulated macrophages on Sephacryl S-200 showed that an IL-1 peak at a point corresponding to approximately 16.5 kDa was eluted. The ability of SPAs from strains ATCC 29523 and NCTC 9710 to induce the release of IL-1 was lower than that of Y4 SPA. The IL-1-releasing ability of serotype a and c antigens was enhanced by deacetylation of both polysaccharides, suggesting that acetyl groups of these antigens might hinder the interaction between the antigens and macrophages.

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