Modified vaccinia virus ankara for the vaccination of neonates

Details Modified vaccinia virus ankara for the vaccination of neonates Modified vaccinia virus ankara for the vaccination of neonates

A - Human Necessities

61

K

A61K 39/285 (2006.01) A61K 39/245 (2006.01) C12N 7/00 (2006.01)

Patent

CA 2478009

The invention concern the use of a virus for the preparation of a medicament for the vaccination or treatment of a neonatal or prenatal animal, including a human, wherein the virus is capable of infecting the cells of the neonatal or prenatal animal, including a human, but not capable of being replicated to infectious progeny virus in the neonatal or prenatal animal, including a human. The virus is preferably a Modified Vaccinia Virus Ankara. In particular, the invention concerns the vaccination of neonates against infections with viruses belonging the same virus group than the virus used for vaccination. Moreover, the invention concerns the vaccination of neonates against antigens selected from foreign antigens and tumour antigens, wherein the tumour antigen and/or the foreign antigen are different from the antigens associated with the virus. The invention further concerns the use of viruses as defined above to increase the level of factors which activate dendritic cells or their precursor cells and/or to increase the number of dendritic cells or their precursor cells and/or to increase the production and/or cellular content of an interferon (IFN) or IL-12.

L'invention concerne l'utilisation d'un virus dans la préparation d'un médicament servant à la vaccination ou au traitement d'un animal néonatal ou prénatal, notamment un humain. Ledit virus est capable d'infecter des cellules de l'animal néonatal ou prénatal, notamment un humain, mais n'est pas capable d'être répliqué à un virus de descendance infectieuse chez l'animal néonatal ou prénatal, notamment un humain. Le virus est de préférence un virus de la vaccine Ankara modifiée (MVA). L'invention concerne en particulier la vaccination des nouveau-nés contre les infections virales appartenant au même groupe de virus que le virus utilisé pour la vaccination. L'invention concerne, de plus, la vaccination des nouveau-nés contre des antigènes sélectionnés parmi des antigènes étrangers et des antigènes tumoraux, ledit antigène tumoral et/ou ledit antigène étranger étant différents des antigènes associés au virus. L'invention concerne également l'utilisation de virus tels que définis ci-dessus pour augmenter le taux de facteurs qui activent des cellules dendritiques ou leurs cellules précurseurs et/ou pour augmenter la production et/ou le contenu cellulaire d'un interféron (IFN) ou de l'IL-12.

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