A Phase I vaccine trial using dendritic cells pulsed with autologous oxidized lysate for recurrent ovarian cancer
Trinitrophenyl (TNP)-specific humoral response was tested after immunization with TNP-protein conjugates composed of either native proteins or proteins modified by chlorination. Significant enhancement of the hapten-specific response was observed as a result of carrier chlorination. This effect was dose dependent and affected mainly T-helper-cell activation. Since stimulated neutrophils chlorinate in vivo proteins, we propose that they take part in the induction phase of immune response by facilitation of antigen processing and/or presentation.