Abstract
Autologous chondrocyte implantation (ACI) for the treatment of articular cartilage defects has been described by other workers, however, relatively few details of the in vitro growth of the cells have been published. Here we describe the release of cells from adult human articular cartilage and their growth characteristics in vitro.
Cultures were successfully established from 29 of 30 biopsies taken from patients aged 20–72 year. No significant relationship was found between donor age and initial cell yield following cartilage digest, however, the time to primary confluence increased in direct proportion to age. Thereafter the kinetics of cell proliferation was independent of donor age.
The proportion of apoptotic or necrotic cells in the cartilage digest was low and increased with time in culture only in those cells which remained non-adherent. Conversely, entry into cell cycle was restricted to those cells which had become adherent.
These results illustrate that previously reported techniques for isolating and culturing chondrocytes are reproducible, that adherent chondrocytes have considerable proliferative potential, and that concern about cell growth and viability need not, in itself, limit the clinical application of ACI to younger patients.
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Harrison, P., Ashton, I., Johnson, W. et al. The in Vitro Growth of Human Chondrocytes. Cell Tissue Banking 1, 255–260 (2000). https://doi.org/10.1023/A:1010131729208
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DOI: https://doi.org/10.1023/A:1010131729208