Chondrozyten – ein Zelltyp, verschiedene Subpopulationen |
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Authors: | S Grad PhD GM Salzmann |
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Institution: | 1. AO Forschungsinstitut Davos, Clavadelerstra?e 8, CH-7270, Davos, Schweiz 2. Department Orthop?die und Traumatologie, Universit?tsklinikum, Freiburg, Deutschland
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Abstract: | Chondrocytes represent the most important cell source for engineering of cartilaginous tissues. Depending on the tissue type and the localization within the tissue, these cells may behave differently. Numerous studies have been done to compare articular, nasal, auricular, and costal chondrocytes in order to evaluate differences between knee and ankle joint cartilage and to investigate topographical variations within an articular joint. Moreover, the zonal structure of articular cartilage needs to be considered because it leads to phenotypical differences between chondrocytes of the superficial and the deeper zones. Several studies indicate, however, that even differentiated chondrocytes demonstrate a certain plasticity and strive to adapt their phenotypes to a new mechanical and biochemical environment. The aim of this review is to report on similarities and differences of chondrocytes from different tissues, zones, and topographical locations. In particular, an overview of recent results from comparative studies is presented, and possible consequences for the design of tissue engineering models are discussed. |
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