Method for obtaining antigenic aggregates and the use thereof in formulations

摘要

The present invention is related to the method for obtaining aggregated antigenic structures that are able to enhance the immune response to antigens, administered by systemic and/or mucosal routes, to generate potent immune responses, as well as chemical structures resulting from the application of this method, the formulations obtained from such structures and their use. The method describes the preparation of new aggregated antigenic structures by using aggregating, delipidating or oxidizing compounds allowing the release of lipids from the particle and its aggregation in a heterogeneous fashion, selecting afterwards particle aggregates with sizes between 30 and 500 nm by a molecular exclusion process. The aggregation state may also be induced inside the yeast by varying the incubation conditions. The resulting structures may be conveniently used adjuvanted or in a formulation together with several antigens, to produce a synergistic effect of these components regarding the immunogenicity of the response obtained. The preparation may also contain stabilizing and preserving substances. The resulting antigenic structures may be applied in the pharmaceutical industry as preventive or therapeutic vaccine formulations for human or veterinary use and as a part of diagnostic systems.