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Chemotaxis of human articular chondrocytes and mesenchymal stem cells

✍ Scribed by Yasunori Mishima; Martin Lotz

Publisher
Elsevier Science
Year
2008
Tongue
English
Weight
117 KB
Volume
26
Category
Article
ISSN
0736-0266

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✦ Synopsis

Abstract

Migration of chondrocytes and mesenchymal stem cells (MSCs) may be important in cartilage development, tissue response to injury, and in tissue engineering. This study analyzed growth factors and cytokines for their ability to induce migration of human articular chondrocytes and bone marrow‐derived mesenchymal stem cells in Boyden chamber assays.In human articular chondrocytes serum induced dose‐ and time‐dependent increases in cell migration. Among a series of growth factors and cytokines tested only PDGF induced a significant increase in cell migration. The PDGF isoforms AB and BB were more potent than AA. There was an aging‐related decline in the ability of chondrocytes to migrate in response to serum and PDGF. Human bone marrow MSC showed significant chemotaxis responses to several factors, including FBS, PDGF, VEGF, IGF‐1, IL‐8, BMP‐4, and BMP‐7. In summary, these results demonstrate that directed cell migration is inducible in human articular chondrocytes and MSC. PDGF is the most potent factor analyzed, and may be useful to promote tissue integration during cartilage repair or tissue engineering. © 2008 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 26:1407–1412, 2008

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