PROCESS FOR OBTAINING ANTIGEN-PRESENTING VESICLES (APV) THAT ENABLES THE COUPLING OF ONE OR MORE ANTIGENS

    公开(公告)号:EP4173634A1

    公开(公告)日:2023-05-03

    申请号:EP21758042.2

    申请日:2021-06-28

    IPC分类号: A61K39/00 C12N1/00 A61K39/095

    摘要: The present invention refers to a process for obtaining antigen-presenting vesicles (APV) that enables the coupling of one or more antigens, wherein such APV comprises (i) an outer membrane vesicle of gram-negative bacteria (OMV); (ii) at least one antigenic protein or peptide; and (iii) at least a pair of molecules with complementary affinities comprising a first affinity molecule that associates with the vesicle, and a complementary affinity molecule that associates with the protein or peptide. Thus, the process for obtaining the APV of the present invention is essential to achieve a form of presentation that consists of a vesicle that makes it possible to attach one or more proteins, or a plurality of different protein or peptide antigens. In that regard, such process comprises the following steps: (a) conjugating the first affinity molecule to the vesicle (OMV); (b) obtaining the antigen protein(s) or peptide(s) in fusion with the complementary affinity molecule; and (c) coupling the fusion protein obtained in step "b" with the product obtained in step "a".