Hiv-1 tat, or derivatives thereof for prophylactic and...

A - Human Necessities – 61 – K

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Details

A61K 39/21 (2006.01) C07K 14/16 (2006.01) C12N 5/10 (2006.01) C12N 15/49 (2006.01) C12N 15/86 (2006.01) A61K 39/00 (2006.01)

Patent

CA 2311647

The present invention refers to Tat as the active principale for a prophylactic and/or therapeutic vaccine against HIV infection, the progression towards AIDS and the development of tumors and other syndromes and symptoms in subjects infected by HIV. Tat is in biologically active form either as recombinant protein or peptide or as DNA. More particularly, the invention refers to a vaccine based on HIV-1 Tat as immunogen, inoculated as DNA and/or recombinant protein or as peptides, alone or in combination with other genes or viral gene products (Nef, Rev, Gag) or parts thereof, or in combination with various immuno modulant cytokines (IL-12, IL-15) or with the gene coding for an immuno modulant cytokine or part thereof. Tat, Nef, Rev, Gag and the immuno modulant cytokines are administrated both as a mixture of recombinant proteins, peptides or fusion proteins (Tat/Nef, Tat/Rev, Tat/Gag, Tat/IL-12, Tat/IL-15) or as plasmid DNA.

L'invention concerne Tat en tant que principe actif d'un vaccin prophylactique et/ou thérapeutique contre l'infection à VIH, l'évolution de la séropositivité vers le SIDA et le développement de tumeurs ou autres syndromes ou symptômes chez des sujets infectés par VIH. Tat se présente sous une forme bioactive soit comme protéine recombinante ou peptide soit comme ADN. Plus particulièrement, l'invention concerne un vaccin, basé sur Tat de VIH-1 comme immunogène, inoculé sous forme d'ADN et/ou de protéine recombinante ou comme peptides, seul ou en association avec d'autres gènes ou produits géniques viraux (Nef, Rev, Gag) ou des éléments desdits produits, ou en association avec diverses cytokines immunorégulatrices (IL-12, IL-15) ou avec le gène codant pour une cytokine immunorégulatrices ou un élément de ladite cytokine. Tat, Nef, Rev, Gag et les cytokines immunorégulatrices s'administrent à la fois comme mélange de protéines recombinantes, de peptides ou de protéines de fusion (Tat/Nef, Tat/Rev, Tat/Gag, Tat/IL-12, Tat/IL-15) et comme ADN plasmidique.

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