The more production of matrices, the better formation of tissue-engineered cartiolage; The constructs of chondrocytes seeded onto PGA coating with PLA, LEC and PLYS can form tissue-engineerd cartilage in animals who have inherited immunity.

• 细胞支架复合物体外培养期间有基质产生，是组织工程化软骨生成的前提条件；以卵磷脂、多聚赖氨酸及聚乳酸共同修饰的聚羟基乙酸支架与软骨细胞复合培养后回植到有免疫力的动物体内可生成组织工程化软骨。