Major components of ECM: 1. fibrous structural proteins: collagen胶原蛋白 elastin弹性蛋白 2. adhesive glycoproteins: fibronectin纤连蛋白 laminin层连蛋白 3. proteoglycans and hyaluronan glycosaminoglycan:粘多糖 heparan sulfate, dermatan sulfateMajor components of ECM: 1.fibrous structural proteins: collagen 胶原蛋白 elastin 弹性蛋白 2.adhesive glycoproteins: fibronectin 纤连蛋白 laminin 层连蛋白 3.proteoglycans and hyaluronan glycosaminoglycan:粘多糖 heparan sulfate、dermatan sulfate