Delivery of bioactive compounds to an organism

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 5/10 (2006.01) C12N 5/071 (2010.01) C12N 5/077 (2010.01) A61K 35/12 (2006.01) A61K 35/34 (2006.01) A61K 38/18 (2006.01) C12M 3/00 (2006.01) C12N 15/85 (2006.01) A61K 48/00 (2006.01)

Patent

CA 2242711

Disclosed herein is a method of delivering a bioactive compound to an organism that involves growing individual cells in vitro under conditions that allow the formation of an organized tissue, at least a subset of the cells containing a foreign DNA sequence which mediates the production of the bioactive compound; and implanting to organized tissue into the organism, whereby the bioactive compound is produced and delivered to the organism. Also disclosed herein is an in vitro method for producing a issue having in vivo- like gross and cellular morphology that involves providing precursor cells of the tissue; mixing the cells with a solution of extracellular matrix components to create a suspension; placing the suspension in a vessel having a three-dimensional geometry approximating the in vivo gross and cellular morphology of the tissue and having attachment surfaces coupled thereto, allowing the suspension to coalesce; and culturing the cells under conditions in which the cells form an organized tissue connected to the attachment surfaces. Also disclosed herein is an apparatus for producing in vitro a tissue having in vivo-like gross and cellular morphology. This apparatus includes a vessel having a three-dimensional geometry approximating the in vivo morphology of the tissue and tissue attachment surfaces coupled thereto.

Méthode d'administration d'un composé bioactif à un organisme qui consiste dans les étapes suivantes: culture de cellules individuelles in vitro dans des conditions permettant la formation d'un tissu organisé, un sous-ensemble au moins de ces cellules présentant un séquence d'ADN étrangère qui assure la médiation de la production du composé bioactif; et implantation du tissu organisé dans l'organisme, de sorte que le composé bioactif se trouve produit et administré à l'organisme. L'invention porte également sur une méthode in vitro de production d'un tissu présentant une morphologie cellulaire et générale analogue à une morphologie in vivo qui consiste à obtenir des cellules précuseurs du tissu; mélanger ces cellules avec une solution de composants extra-cellulaires pour obtenir une suspension; placer la suspension dans un récipient dont la géométrie en trois dimensions est approximativement celle de la morphologie cellulaire et générale in vivo des tissus et comportant des surfaces de fixation accouplées; laisser la suspension subir une coalescence; cultiver les cellules dans des conditions telles qu'elles forment un tissu organisé relié aux surfaces de fixation. L'invention porte également sur un dispositif d'obtention in vitro d'un tissu présentant une morphologie cellulaire et générale analogue à une morphologie in vivo. Le dispositif comprend un récipient dont la configuration en trois dimensions est approximativement celle de la morphologie in vivo du tissu, pourvu de surfaces de fixation du tissu accouplées.

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