The present invention relates generally to methods and materials for use in the production of implants, particularly luminal tissue implants, where the implants are engineered by seeding of an acellular scaffold or matrix with muscle cell precursors and fibroblasts, for example injection seeding using particular ratios of cells. The present invention provides methods for producing tissue engineered constructs for implantation into a subject which can utilise novel seeding processes described herein for improved cell engraftment and differentiation. In addition, the invention describes methods for treating an individual by implantation of the engineered constructs or tissues of the invention.
