Characteristics of the T-dependent alpha(1 leads to 6) glucosyl (dextran) antibody response induced in mice with isomaltohexaose coupled to chicken gamma-globulin.
Isomaltohexaose flavazole coupled to chicken gamma-globulin (IM6-CGG) induced T cell-dependent anti-alpha(1 leads to 6) dextran-specific IgM and IgG responses in CBA, BALB/c and A strain mice. The IgG responses were of restricted heterogeneity as judged by isoelectric focusing, and belonged mostly to the IgG1 subclass with a minor IgG3 component in the case of BALB/c and CBA mice. All four subclasses of IgG were produced in A strain mice. In contrast, native dextran B 512 induces exclusively T cell-independent IgM responses of the same specificity for all 3 strains. All BALB/c mice immunized with different doses of IM6-CGG either in Freund's adjuvant or with Al(OH)3 plus Bordetella pertussis showed the same spectrotypes by isoelectric focusing. Sera obtained at different times after immunization of BALB/c mice failed to show spectrotype variations. Late, but not early, bleedings from CBA mice showed a tendency towards more uniform isoelectric focusing patterns.
D000818:Animals; D000917:Antibody Formation; D000961:Antilymphocyte Serum / Q000494:pharmacology; D002645:Chickens; D003911:Dextrans / Q000276:immunology*; D004306:Dose-Response Relationship, Immunologic; D005620:Freund's Adjuvant / Q000494:pharmacology; D006462:Hemolytic Plaque Technique; D007122:Immunoelectrophoresis; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D007525:Isoelectric Focusing; D051379:Mice; D008805:Mice, Inbred A; D008807:Mice, Inbred BALB C; D008808:Mice, Inbred CBA; D009844:Oligosaccharides; D011817:Rabbits; D013601:T-Lymphocytes / Q000276:immunology*; D013997:Time Factors; D005719:gamma-Globulins / Q000276:immunology*
D000961:Antilymphocyte Serum; D003911:Dextrans; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D009844:Oligosaccharides; D005719:gamma-Globulins; C024046:isomaltohexose; D005620:Freund's Adjuvant