Novel immunogenic compositions comprising modified and...

A - Human Necessities – 61 – K

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A61K 48/00 (2006.01) C12N 5/078 (2010.01) A61K 39/00 (2006.01) A61K 39/12 (2006.01) C07K 14/025 (2006.01) C07K 19/00 (2006.01) C12N 15/33 (2006.01) C12N 15/62 (2006.01)

Patent

CA 2444048

The invention is directed to the use of (i) a first antigen corresponding to a target antigen of interest, together with (ii) a second antigen, corresponding to a modified form of the target antigen, whose rate of intracellular proteolytic degradation is increased, enhanced or otherwise elevated relative to the first antigen, in compositions and methods for inducing both humoral and cellular immunity in an individual. The ability to provide compositions, which are capable of inducing both host-protective antibody and cell-mediated immune responses, facilitates the generation of immunogenic compositions capable of combating, inter alia, conditions that have long latency periods and, therefore, benefit from the dual approach of prophylaxis and therapy in one delivery.

La présente invention concerne l'utilisation de (i) un premier antigène correspondant à un antigène cible d'intérêt, avec (ii) un second antigène correspondant à une forme modifiée de l'antigène cible, dont la vitesse de dégradation protéolytique intracellulaire est augmentée, améliorée ou élevée par rapport au premier antigène, dans des compositions et des procédés servant à induire une immunité à la fois humorale et cellulaire chez un individu. L'utilisation de compositions qui sont capables d'induire des réponses immunitaires à la fois par anticorps de protection de l'hôte et à médiation cellulaire, facilite la production de compositions immunogènes capables de lutter, entre autres, contre les états pathologiques qui ont des temps de latence importants, et qui, de ce fait, bénéficient d'une approche double de prévention et de thérapie en une simple administration.

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