Abstract
Primary cultures of rabbit articular chondrocytes have been subcultured within three-dimensional (3D) collagen gels. Under these conditions, the cells remained viable and divided, but with a lower proliferation rate than that observed in control monolayer cultures. Flow cytometric analysis of progression of the cells into the cell cycle has confirmed and extended these findings. Also the cellular volume was decreased in 3D-culture, being in the same range as thein vivo size of cartilage cells. Specific staining for proteoglycans and type II collagen immunolocalization on sections of gels showed the expression of differentiated phenotypes and revealed the accumulation of these matrix components in the immediate surroundings of the cells. The use of Ultroser G (a serum substitute) improved the conditions for 3D- culture of rabbit articular chondrocytes.
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Dewilde, B., Benel, L., Hartmann, DJ. et al. Subculture of rabbit articular chondrocytes within a collagen gel: growth and analysis of differentiation. Cytotechnology 1, 123–132 (1988). https://doi.org/10.1007/BF00146812
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DOI: https://doi.org/10.1007/BF00146812