title: Comparison of Mycoplasma gallisepticum subunit and whole organism vaccines containing different adjuvants by western immunoblotting.
abstract: Chickens were vaccinated with subunit (adhesin protein) or whole organisms of Mycoplasma gallisepticum (MG) adjuvanted with multilamellar positively charged liposomes or oil-emulsion. Sera were collected before and following the first (13 weeks of age) and second (17 weeks of age) vaccination. The chicken sera were used in western immunoblotting against whole MG polypeptides. Vaccination with the subunit (MG-adhesin) bacterin containing positively charged liposomes resulted in antibody response specific to adhesin band (75 kD) at 3 weeks post the first and second vaccination; however, crossreactions of the same antibodies occurred to MG proteins of 85 kD (3 weeks after the first vaccination) and 56 kD (3 weeks after the second vaccination). Vaccination with whole MG proteins containing positively charged liposomes resulted in significant immunopotentiation of antibodies against low molecular weight polypeptides of MG (less than 48.0 kD). The addition of Salmonella typhimurium cell wall proteins mitogens (STP) to the different bacterins suppressed the antibody responses to some MG polypeptides.
authors.affiliation: Brinton Laboratories, Inc. Department of Research and Development, Willmar, MN 56201.
authors.forename: E K
authors.initials: EK
authors.lastname: Barbour
authors.forename: J A
authors.initials: JA
authors.lastname: Newman
mesh_terms: D000276:Adjuvants, Immunologic / Q000494:pharmacology*; D000818:Animals; D000907:Antibodies, Bacterial / Q000096:biosynthesis / Q000276:immunology; D001426:Bacterial Proteins / Q000276:immunology; D001428:Bacterial Vaccines / Q000276:immunology*; D015153:Blotting, Western; D002645:Chickens / Q000276:immunology*; D004591:Electrophoresis, Polyacrylamide Gel; D008081:Liposomes / Q000494:pharmacology; D009174:Mycoplasma / Q000276:immunology; D009175:Mycoplasma Infections / Q000517:prevention & control*; D011201:Poultry Diseases / Q000276:immunology / Q000517:prevention & control*; D012486:Salmonella typhimurium / Q000276:immunology
chemical_list: D000276:Adjuvants, Immunologic; D000907:Antibodies, Bacterial; D001426:Bacterial Proteins; D001428:Bacterial Vaccines; D008081:Liposomes