Patent ID: 7923244

Claim:
An artificial cartilage tissue to which no bovine serum or plasma has been added and which does not contain an exogenous scaffold derived from non-cartilage-derived cells, but contains mammalian cartilage-derived cells and an extracellular matrix formed by the cartilage-derived cells, and has at least one of the following properties (1), (2), and (3): (1) a water retention per mg of tissue dry weight of 17.8 mg or less; (2) collagen of 5.57 μg or more per mg of tissue wet weight is contained; and (3) proteoglycan of 9.22 μg or more per mg of tissue wet weight is contained, wherein the mammalian cartilage-derived cells are only those obtained by culturing under the presence of serum or plasma derived from a mammal of the same species, wherein, the artificial cartilage tissue is obtained by culturing in a medium containing a growth factor belonging to the transforming growth factor-β superfamily.