Abstract
In a comparative study, the enzyme-linked immunosorbent assay, using peroxidase labeled anti-rat immunoglobulin M and immunoglobulin G, and the passive hemagglutination test were applied to determine the primary and secondary antibody response to lipopolysaccharide and tetanus toxoid in rats. In the enzyme-linked immunosorbent assay, the antigens were bound to the wells of polystyrene microplates, tetanus toxoid directly, and lipopolysaccharide after complexing it with methylated bovine serum albumin. After incubation with dilutions of the rat sera, the amount of antibody bound to the solid phase was quantified by means of peroxidase-labeled anti-immunoglobulin. The specificity of the enzyme immunoassay was tested by absorption of the sera with their respective antigens. The enzyme-linked immunosorbent assay proved to be more sensitive than the hemagglutination reaction, except when titers were determined during the secondary response to tetanus toxoid. Besides its specificity and sensitivity, the enzyme-linked immunosorbent assay is a convenient method for measuring both immunoglobulin M and immunoglobulin G antibodies. At low serum dilutions of lipopolysaccharide antisera, inhibition of the reaction in the enzyme-linked immunosorbent assay occurred. This phenomenon could be prevented by heating the sera at 56°C for 30 min. Lipopolysaccharide was immunogenic in rats over an extremely wide dose range (from 10 pg to 1 mg); the optimal immunogenic dose of lipopolysaccharide for young adult rats was 0.1 to 1,000 μg when administered intravenously, and that of tetanus toxoid was 5 to 10 lines of flocculation, as determined by the Ramon flocculation test.
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- Andersson B., Blomgren H. Evidence for thymus-independent humoral antibody production in mice against polyvinylpyrrolidone and E. coli lipopolysaccharide. Cell Immunol. 1971 Oct;2(5):411–424. doi: 10.1016/0008-8749(71)90052-9. [DOI] [PubMed] [Google Scholar]
- Bullock S. L., Walls K. W. Evaluation of some of the parameters of the enzyme-linked immunospecific assay. J Infect Dis. 1977 Oct;136 (Suppl):S279–S285. doi: 10.1093/infdis/136.supplement_2.s279. [DOI] [PubMed] [Google Scholar]
- Carlsson H. E., Hurvell B., Lindberg A. A. Enzyme-linked immunosorbent assay (ELISA) for titration of antibodies against Brucella abortus and Yersinia enterocolitica. Acta Pathol Microbiol Scand C. 1976 Jun;84(3):168–176. doi: 10.1111/j.1699-0463.1976.tb00016.x. [DOI] [PubMed] [Google Scholar]
- Engvall E., Jonsson K., Perlmann P. Enzyme-linked immunosorbent assay. II. Quantitative assay of protein antigen, immunoglobulin G, by means of enzyme-labelled antigen and antibody-coated tubes. Biochim Biophys Acta. 1971 Dec 28;251(3):427–434. doi: 10.1016/0005-2795(71)90132-2. [DOI] [PubMed] [Google Scholar]
- Engvall E. Quantitative enzyme immunoassay (ELISA) in microbiology. Med Biol. 1977 Aug;55(4):193–200. [PubMed] [Google Scholar]
- Johnson K. J., Ward P. A., Goralnick S., Osborn M. J. Isolation from human serum of an inactivator of bacterial lipopolysaccharide. Am J Pathol. 1977 Sep;88(3):559–574. [PMC free article] [PubMed] [Google Scholar]
- Nakane P. K., Kawaoi A. Peroxidase-labeled antibody. A new method of conjugation. J Histochem Cytochem. 1974 Dec;22(12):1084–1091. doi: 10.1177/22.12.1084. [DOI] [PubMed] [Google Scholar]
- Ruitenberg E. J., Steerenberg P. A., Brosi B. J., Buys J. Reliability of the enzyme-linked immunosorbent assay (ELISA) for the serodiagnosis of Trichinella spiralis infections in conventionally raised pigs. J Immunol Methods. 1976;10(1):67–83. doi: 10.1016/0022-1759(76)90008-9. [DOI] [PubMed] [Google Scholar]
- Ruitenberg E. J., van Amstel J. A., Brosi B. J., Steerenberg P. A. Mechanization of the enzyme-linked immunosorbent assay (ELISA) for large scale screening of sera. J Immunol Methods. 1977;16(4):351–359. doi: 10.1016/s0022-1759(97)90005-3. [DOI] [PubMed] [Google Scholar]
- STAVITSKY A. B. Micromethods for the study of proteins and antibodies. I. Procedure and general applications of hemagglutination and hemagglutination-inhibition reactions with tannic acid and protein-treated red blood cells. J Immunol. 1954 May;72(5):360–367. [PubMed] [Google Scholar]
- Steinbuch M., Audran R. The isolation of IgG from mammalian sera with the aid of caprylic acid. Arch Biochem Biophys. 1969 Nov;134(2):279–284. doi: 10.1016/0003-9861(69)90285-9. [DOI] [PubMed] [Google Scholar]
- Vos J. G. Immune suppression as related to toxicology. CRC Crit Rev Toxicol. 1977 May;5(1):67–101. doi: 10.3109/10408447709101342. [DOI] [PubMed] [Google Scholar]
- Watson J., Riblet R. Genetic control of responses to bacterial lipopolysaccharides in mice. I. Evidence for a single gene that influences mitogenic and immunogenic respones to lipopolysaccharides. J Exp Med. 1974 Nov 1;140(5):1147–1161. doi: 10.1084/jem.140.5.1147. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Willcox H. N. Thymus dependence of the antibody response to tetanus toxoid in mice. Clin Exp Immunol. 1975 Nov;22(2):341–347. [PMC free article] [PubMed] [Google Scholar]
- Wisdom G. B. Enzyme-immunoassay. Clin Chem. 1976 Aug;22(8):1243–1255. [PubMed] [Google Scholar]

