Photodynamic inactivation of viruses in cell-containing...

A - Human Necessities – 61 – K

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A61K 35/14 (2006.01) A61K 41/00 (2006.01) A61L 2/00 (2006.01) A61L 2/08 (2006.01) A61L 2/16 (2006.01) C12N 7/06 (2006.01)

Patent

CA 2042494

The present invention concerns the product produced by inactivating extracellular lipid enveloped pathogenic virus or intracellular pathogenic virus in a composition containing >1 X 10 9 cells/ml and said virus without incurring substantial disruption or inactivation of such cells, the inactivation process comprising contacting the composition with a virucidally effective amount of at least one photoreactive compound having an absorption maximum of ~ 630 nm, light and an oxidizer, thereby substantially to inactivate the virus with retention of cell functionality, greater than 80%. The present invention also concerns the product produced by inactivating virus in a biological composition without incurring substantial disruption or inactivation thereof, the inactivation process comprising contacting said composition with a virucidally effective amount of at least one photoreactive compound, light, and a quencher thereby to inactivate said virus while retaining functionality of said substance.

La présente invention concerne le produit obtenu en inactivant un virus pathogène extracellulaire enveloppé dans un lipide ou un virus pathogène intracellulaire dans une composition contenant >1 X 10 9 cellules/mL et ledit virus sans entraîner une perturbation ou une inactivation substantielle de ces cellules; le procédé d'inactivation consiste à mettre la composition en contact avec une quantité virocide d'au moins un composé photoréactif affichant un maximum d'absorption de 630 nm, avec de la lumière et avec un oxydant, ce qui inactive substantiellement le virus en conservant la fonction cellulaire à plus de 80 %. L'invention concerne aussi le produit obtenu en inactivant un virus dans une composition biologique sans entraîner une perturbation ou une inactivation de celle-ci, le procédé d'inactivation consistant à mettre en contact la composition en question avec une quantité virocide d'au moins un composé photoréactif, avec de la lumière et avec un agent d'extinction afin d'inactiver le virus tout en conservant la fonction de la substance.

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