Abstract
In recent years, cell-based therapy is a promising strategy for repairing defect cartilage. However, in vitro expansion of articular chondrocytes (ACs) for collecting enough cell numbers eventually develops cell de-differentiation. In the present study, we choose the proliferative layer chondroctytes (PLCs) of growth plate as new candidate. The novel findings include (1) the higher proliferation potential of PLCs in comparison with the ACs, (2) PLCs produced more GAG than ACs, (3) the increased in GAG matrix production, (4) and lower senescence in PLCs. From these results, we found PLCs might be suitable as cell source for cartilage regeneration.
Keywords:
chondrocyte implantation; growth plate; proliferating layer chondrocytes; tissue engineering.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Animals
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Apoptosis / genetics
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Biomarkers / metabolism
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Cartilage, Articular / physiology*
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Cell Proliferation / genetics
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Cell Shape / genetics
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Cell Survival / genetics
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Cells, Cultured
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Cellular Senescence / genetics
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Chondrocytes / cytology*
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Chondrocytes / metabolism
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Chondrogenesis / genetics
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Gene Expression Regulation
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Glycosaminoglycans / metabolism
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Growth Plate / cytology*
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Hypertrophy
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Mice, Inbred BALB C
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Mice, Nude
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Phenotype
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Polylactic Acid-Polyglycolic Acid Copolymer / chemistry
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RNA Stability / genetics
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RNA, Messenger / genetics
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RNA, Messenger / metabolism
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Regeneration / physiology*
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Subcutaneous Tissue / physiology
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Swine
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Tissue Scaffolds / chemistry
Substances
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Biomarkers
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Glycosaminoglycans
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RNA, Messenger
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Polylactic Acid-Polyglycolic Acid Copolymer