Immunogenicity of a Glycoconjugate from Hydrazine-Detoxified Lipopolysaccharide ofVibrio choleraeO139
| Autor: | Jana Korcová, Anna Fleischhackerová‐Slimáková, Slavomír Bystrický |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Lipopolysaccharides
0301 basic medicine Enzyme-Linked Immunospot Assay Lipopolysaccharide Glycoconjugate Immunology Immunization Secondary Biology medicine.disease_cause Vibrio cholerae O139 Microbiology Mice 03 medical and health sciences chemistry.chemical_compound Bacteriolysis Immune system Cholera medicine Animals Humans Th1-Th2 Balance Cells Cultured chemistry.chemical_classification B-Lymphocytes Mice Inbred BALB C Immunogenicity ELISPOT General Medicine Antibodies Bacterial Immunoglobulin Class Switching Hydrazines 030104 developmental biology chemistry Immunization Vibrio cholerae Immunoglobulin G biology.protein Cytokines Female Antibody Glycoconjugates |
| Zdroj: | Scandinavian Journal of Immunology. 86:444-451 |
| ISSN: | 0300-9475 |
| DOI: | 10.1111/sji.12623 |
| Popis: | A glycoconjugate (dLPS-CBSA) from hydrazine-detoxified lipopolysaccharide of Vibrio cholerae O139 and BSA was used for immunization of Balb/c mice. The immunogenicity (concentration of induced IgG antibodies) of the conjugate was determined by enzyme-linked immunosorbent assay. The highest level of lipopolysaccharide-specific IgGs were found in sera collected two weeks after the third immunization. Both IgM and IgG antibodies present in the anti V. cholerae O139-specific sera showed long-lasting vibriocidal activity. The glycoconjugate also stimulated production of IL-4, IL-6, IFNγ,TNFα and IL-10. Immunization with the conjugate induced significant production of both Th1 and Th2 cytokine sets, indicating balanced Th1/Th2 immune response polarization. The quantitative analysis of total and lipopolysaccharide-specific IgM and IgG antibodies production by B lymphocytes (from both the spleen and the bone marrow) was performed by ELISPOT assay. From the analysis of antibodies produced directly by B lymphocytes in the bone marrow (of dLPS-CBSA immunized mice), we were able to identify the IgMIgG switch in the antibodies produced. This article is protected by copyright. All rights reserved. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
| Nepřihlášeným uživatelům se plný text nezobrazuje | K zobrazení výsledku je třeba se přihlásit. |