Abstract
Meniscal fibrochondrocytes from male and female New Zealand white rabbits, ages 6, 12, and 24 months, were grown in primary and secondary monolayer cell culture. Neither age nor sex affected the majority of their cell culture characteristics. Cells from young males (6 months old) synthesized greater amounts of sulfated proteoglycans than did those from young females, but by 2 years of age, this result was reversed. All age groups synthesized 2 classes of proteoglycans, based on hydrodynamic size, but the ratio of the 2 classes changed as a function of age. Overall, the meniscal fibrochondrocytes from both skeletally immature and skeletally mature rabbits of both sexes were capable of proliferation and matrix synthesis in vitro.
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