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Cartilage repair is a very successful pioneering area of regenerative medicine in which techniques of in situ regeneration and cell and tissue transplantation dominate over cell-free approaches to generate durable neocartilage. This review concentrates on advantages and limitations of mesenchymal stem cell (MSC)-based cartilage repair strategies induced by marrow stimulation. Detailed knowledge on the biology of MSC will be discussed in light of the requirements for MSC recruitment, retention, proliferation and chondrogenic differentiation. An improved microenvironment with timely correlated signals from biomaterials, growth factors, proteases, adjacent cartilage and subchondral bone may be key to a third generation of techniques to regenerate hyaline cartilage.
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Wiltrud Richter (2009) studied this question.
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