Augmentation of organ function

A - Human Necessities – 61 – L

Patent

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A61L 27/38 (2006.01)

Patent

CA 2466487

The present invention provides methods and compositions for augmenting organ functions using small-scale matrix implants generated by seeding tissue- specific or undifferentiated cells onto a matrix materials (e.g., a wafer, sponge, or hydrogel). The seeded matrix composition can then be implanted and will develop into an organ-supplementing structure in vivo. Continued growth and differentiation of the seeded cells on the implanted matrix results in the formation of a primitive vascular system in the tissue. The primitive vascular system can then develop into a mature vascular system, and can also support the growth and development of additional cultured cell populations. The seeded matrix system can be used to introduce a variety of different cells and tissues in vivo.

L'invention concerne des procédés et des compositions destinés à augmenter les fonctions d'un organe au moyen d'implants de matrices de petite échelle générés par ensemencement de cellules spécifiques ou indifférenciées sur des matériaux matriciels (par exemple, plaquette, éponge ou hydrogel). La composition matricielle semée, qui peut alors être implantée, se développera dans une structure complémentaire d'organe in vivo. La croissance et la différentiation continues des cellules semées sur la matrice implantée donne lieu à la formation d'un système vasculaire primaire dans le tissu. Ledit système peut alors se développer en système vasculaire mûr et également supporter la croissance et le développement de populations cellulaires cultivées additionnelles. Le système matriciel semé peut servir à introduire une variété de cellules et de tissus différents in vivo.

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