Heterologous carriers in the anamnestic antihapten response.
Anamnestic antihapten responses were obtained to trinitrophenyl (TNP) when rabbits sensitized to trinitrophenyl-hemocyanin (TNP-KLH) were challenged with TNP-heterologous protein conjugates. Hapten-heterologous carrier conjugates elicited antihapten titers similar in magnitude to those elicited by the homologous carrier conjugate. Hapten-heterologous carrier recall of antihapten was successful as early as 37 days and as late as 11 months after sensitization. There was no correlation between anti-TNP-precipitating antibody titer after sensitization and the ability to respond to challenge by hapten-heterologous carrier. The results are discussed in terms of immunogenicity of sensitization, suppressive effects of persisting postsensitization antibody, and submolecular haptenic environment as factors possibly affecting the heterologous recall process.
D000818:Animals; D000910:Antibodies, Heterophile; D000917:Antibody Formation; D000941:Antigens; D006241:Haptens; D006433:Hemocyanins; D007106:Immune Sera; D008297:Male; D009596:Nitrophenols; D011233:Precipitin Tests; D011234:Precipitins; D011817:Rabbits; D012710:Serum Albumin, Bovine; D005719:gamma-Globulins
D000910:Antibodies, Heterophile; D000941:Antigens; D006241:Haptens; D007106:Immune Sera; D009596:Nitrophenols; D011234:Precipitins; D005719:gamma-Globulins; D012710:Serum Albumin, Bovine; D006433:Hemocyanins