Patent Document ID: 6143501
Application ID: 09268894
Patent Flag: 1

Claim One:
1. A method of producing new artificial tissues using cell interaction systems, comprising the steps of: preparing a first cell culture system, comprising the steps of: suspending cells chosen from one or more of the group consisting of differentiated, dedifferentiated and undifferentiated cells, to form a suspension in a solution which can be induced to polymerize, applying factors or components which promote the process of differentiation and tissue formation of said cells, and adding an inducer of polymerization to effect solidification thereof, preparing at least one second cell culture system, comprising the steps of: suspending a means for inducing differentiation of the cells of the first cell culture system, said means consisting of one or more chosen from the group consisting of differentiated cells, cells production factors of differentiation and genetically altered cells, to form a suspension in a solution which can be induced to polymerize, and adding an inducer of polymerization to effect solidification thereof; distributing, prior to the step of adding an inducer of polymerization, either one or both of the suspension of the first cell culture system and the suspension of the second cell culture system within an absorbable fleece; and contacting said first cell culture system with said second cell culture system wherein a new artificial tissue is produced.