A respiratory syncytial virus with a genomic deficiency...

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 7/04 (2006.01) A61K 35/76 (2006.01) A61K 39/155 (2006.01) C07K 14/135 (2006.01)

Patent

CA 2551009

The present invention relates to pneumoviral virions comprising a viral genome that has a mutation in a gene coding for a protein that is essential for infectivity of the pneumovirus, whereby the mutation causes a virus produced from only the viral genome to lack infectivity, and whereby the virion comprises the protein in a form and in an amount that is required for infectivity of the virion. The invention for relates to methods for producing the pneumoviral virions and for using the virions in the treatment or prevention of pneumoviral infection and disease. A preferred pneumoviral virion is a virion of Respiratory Syncytial Virus in which preferably the gene for the G attachment protein is inactivated and complemented in trans.

Cette invention concerne des virions d'un pneumovirus comprenant un génome viral qui présente une mutation dans un gène codant une protéine qui est essentielle à l'infectiosité du pneumovirus, laquelle mutation fait en sorte qu'un virus produit uniquement à partir du génome viral ne soit pas infectieux. Selon cette invention, le virion comprend la protéine sous une forme et en une quantité requises pour que le virion soit infectieux. Cette invention concerne en outre des méthodes de production des virions de pneumovirus et d'utilisation de ces virions dans le traitement ou la prévention d'une infection et d'une maladie causées par un pneumovirus. Un virion de pneumovirus préféré de cette invention est un virion du virus respiratoire syncytial dans lequel le gène de la protéine G de fixation est de préférence inactivé et complémenté en trans.

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