关键词: antibodies cholera lipopolysaccharide vaccine vibriocidal

Mesh : Animals Antibodies, Bacterial / immunology metabolism Antigens, Bacterial / immunology Cholera Vaccines / chemistry immunology Enzyme-Linked Immunosorbent Assay Female Hydrazines / immunology Lipopolysaccharides / immunology Mice Mice, Inbred BALB C Serum Albumin, Bovine / metabolism Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization Vaccines, Conjugate / chemistry immunology Vibrio cholerae / immunology Vibrio cholerae O139 / chemistry immunology

来  源:   DOI:10.1080/09168451.2014.942251

Abstract:
A glycoconjugate construct was based on attachment of V. cholerae O139 hydrazine-treated lipopolysaccharide (LPS) to carboxylated bovine serum albumin (CBSA) via its amino group. The immunological properties of the glycoconjugate were tested using BALB/c mice, injected subcutaneously without any adjuvant three times at 2 weeks interval. The immunogenicity of the conjugate was estimated by enzyme-linked immunosorbent assay, testing of anti-LPS IgG, IgM, and IgA antibodies. The conjugate elicited a statistically significant increase of LPS-specific IgG levels in mice (p < 0.001). The specific anti-LPS IgG and IgA response after the second booster dose was significantly higher compared with reference and unconjugated detoxified LPS response. Antibodies elicited by the dLPS-CBSA conjugate were vibriocidal.
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