Markedly different effects of hyaluronic acid and chondroitin sulfate‐A on the differentiation of human articular chondrocytes in micromass and 3‐D honeycomb rotation cultures
- 13 December 2006
- journal article
- Published by Wiley in Journal of Biomedical Materials Research Part A
- Vol. 80A (2), 257-267
- https://doi.org/10.1002/jbm.a.30931
Abstract
A source of morphologically and functionally available human cartilagenous tissue for implantation is required in the field of tissue engineering. To achieve this goal, we evaluated the effects of hyaluronic acid (HA‐810 and 1680 kDa), and chondroitin sulfate (CS‐A 16 and C‐34 kDa) on human articular chondrocytes (HC) in micromass and rotation culture conditions. Cell proliferation was increased by CS‐A 16 kDa under micromass and rotation cultures, while cell differentiation was increased under rotation but not micromass conditions. Proliferation and differentiation due to CS‐C 34 kDa were very similar to the control under both culture conditions. With HA, cell proliferation was increased depending on the molecular weight under micromass and rotation conditions. In contrast, chondrocyte differentiation was enhanced under rotation conditions, but decreased under micromass conditions depending on the molecular weight of HA. In both culture conditions, aggrecan gene was continuously expressed. However, the collagen type II gene was more weakly expressed in rotation than the micromass culture conditions. Thus, the chemical structures of polysaccharides, and the culture condition, rotation or micromass, caused differences in chondrogenesis. © 2006 Wiley Periodicals, Inc. J Biomed Mater Res, 2007Keywords
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