Delivery of functional protein sequences by translocating...

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/87 (2006.01) A61K 47/48 (2006.01) A61K 48/00 (2006.01) C07K 14/035 (2006.01) C12N 15/62 (2006.01) C12N 15/85 (2006.01)

Patent

CA 2368998

The invention provides methods for modulating a cellular process by contacting a cell in culture with a cell process-modifying molecule attached to a translocating polypeptide. For example, in one embodiment, a cell in culture is transfected with a target gene by contacting the cell in culture with a polynucleotide (that contains the target gene) attached to a translocating polypeptide. In another embodiment, expression of a target gene product in a cell in culture that contains a target gene under control of one or more regulatory elements is modulated by contacting the cell in culture with one or more regulatory agents attached to a translocating polypeptide. The one or more regulatory agents are translocated into the cell in culture and interact therein with the one or more regulatory elements to modulate expression of the target gene product by the cell.

La présente invention concerne des procédés de modulation d'un processus cellulaire par le contact d'une cellule en culture avec une molécule de modification de processus cellulaire fixée à un polypeptide de translocation. Par exemple, dans un mode de réalisation, une cellule en culture est transfectée avec un gène cible par le contact d'une cellule en culture avec un polynucléotide (contenant un gène cible) fixé à un polypeptide de translocation. Dans un autre mode de réalisation, l'expression d'un produit génique cible dans une cellule contenant un gène cible sous le contrôle d'un ou de plusieurs éléments de régulation est modulée par le contact de la cellule en culture avec un ou plusieurs agents de régulation fixés à un polypeptide de translocation. Ledit un ou lesdits plusieurs agents de régulation sont transloqués dans la cellule en culture et interagissent en son sein avec ledit un ou lesdits plusieurs éléments de régulation pour moduler l'expression du produit génique cible par la cellule.

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