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Tissue damages or loss of organs often result in structural and metabolic changes that can cause serious complications. The therapeutic objective of tissue engineering (TE) is to recreate, regenerate or restore function of damaged tissue. TE is based on the coalescence of three components: a scaffold or matrix from natural or synthetic origin biodegradable or not, reparative cells and signals (hypoxia, mechanical stress, morphogens…). Articular cartilage, bone and blood vessels are tissues for which TE has progressed significantly, from basic research to clinical trials. If biomaterials must exhibit different properties depending on the tissue to regenerate, the cellular component of TE is mostly represented by stem cells notably adult mesenchymal stem cells harvested from bone marrow or adipose tissue. In recent years, progress has been made in our understanding of the biological mechanisms that govern stem cell differentiation and in the development of materials with controlled physicochemical and biological properties. However, many technological barriers and regulations concerns have to be overcome before tissue engineering enters into the therapeutic arsenal of regenerative medicine. This review aims at highlighting the progress in the use of stem cells for engineering osteoarticular and vascular tissues.

Les cellules souches en ingénierie des tissus ostéoarticulaires et vasculaires