Poxvirus vector encoding retrovirus (eg hiv) and cytokine

C - Chemistry – Metallurgy – 12 – N

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C12N 15/48 (2006.01) A61K 39/21 (2006.01)

Patent

CA 2542155

In one embodiment, there is provided a method for treatment or prophylaxis of one or more symptoms of a retrovirus infection such as HIV infection, comprising the administration of a poxvirus vector encoding a retrovirus antigen and a cytokine, or a functional homolog, derivative, part or analog thereof, in conjunction with anti-retroviral drug therapy wherein said polypeptide and/or cytokine are expressed in a subject and are effective in maintaining a low viral load in a subject for a period of time, for example effectively preventing, reducing or delaying viral rebound during interruption of anti-retroviral drug treatment.

Dans un mode de réalisation, la présente invention concerne un procédé pour traiter ou prévenir un ou plusieurs symptôme(s) d'une infection par un rétrovirus telle qu'une infection par le VIH. Ce procédé consiste à administrer un vecteur de poxvirus codant un antigène de rétrovirus et une cytokine, ou un homologue fonctionnel, un dérivé, une partie ou analogue de l'antigène de rétrovirus et/ou de la cytokine, en association avec un traitement médicamenteux antirétroviral. Selon l'invention, l'antigène et/ou la cytokine est/sont exprimé(e)(s) dans le corps d'un sujet et servent à maintenir une charge virale faible chez ce sujet pendant un certain laps de temps, et ils peuvent en outre prévenir, réduire ou retarder efficacement un rebond viral, lorsque le traitement médicamenteux antirétroviral est interrompu.

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