Fibronectin is a macromolecular extracellular membrane protein present on the surface of various animal cells, and is the main non-collagenous glycoprotein in the extracellular matrix and basement membrane. It mainly regulates and activates the characteristics of cells through fibronectin, regenerates and repairs damaged cells, and repairs the cellular microenvironment.

Fibronectin is existed in large molecular cells on the surface of various animal cells. It is the main non -collagen protein in the outer cell matrix and the base membrane. Starting the central role in cell adhesion, regulating cell polarity, differentiation and growth.