Recent years have seen an upsurge of significant interest in cell-based technologies. A range of productive and lively debate have taken place relating to tissue engineering, namely the construction of tissues and whole organs using molecularly-designed resorbable biomaterials to create tissue de novo, the potential use of human embryonic stem cells for transplantation and regenerative medicine, with similar potential for adult-derived stem cells, and gene therapy, in relation to cell transplantation. New findings in biomimetic materials, cell signalling pathways, extracellular matrix receptors and ligands, growth factors, and the human genome project, all present particularly motivating sources for the development of research in the evergrowing biomedical field. The purpose of this book is to stimulate further the work in biomedicine and to make the issues of related scientific disciplines accessible to a wider readership by characterising the current state of research in the biomedical field. The lectures and a selection of the presentations from BlOMED 200- th The 9 International Symposium on Biomedical Science and Technology, held in September 2002 in Turkey- constitute the basis for the volume. Tissue engineering, stem cells, cell and gene therapies were the major topics presented and discussed in the symposium. This book is intended to serve as an up-to-date synopsis of the major developments of our area through the work reflected in BlOMED 2002, though not covering all aspects of the topics, due to the natural restrictions within a volume of this kind.