Zeitschrift für Infektionskrankheiten und Präventivmedizin
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Towards an HIV Vaccine Based on Immune Network Theory II

Geoffrey W. Hoffmann, Teri Otto, Michael Grant, Sybille Muller, Heinz Kohler

We have designed immunization protocols based on the co-section model to induce a broadening antigen antibody response against HIV1. As antigen were various antigen-antibody complexes used, including the monoclonal antibody 1F7 that is expressed on anti-HIV1 antibodies with different antigen specificities.

Rabbits were used to test this concept using. Antibodies that neutralized HIV-1 of the same strain as that of the gp120 used were detected, but they did not include broadly neutralizing antibodies (BnAbs). Immunization with gp120 in adjuvant induced antibodies binding to gp120, gp41, Nef and p24, a finding predicted by the immune network theory. Furthermore a complex of 1F7 and B12 induced antibodies against gp120 and gp41, demonstrating an antigen broadening response towards achieving the goal of inducing BnAbs through immunization.