CD44 is a transmembrane receptor protein, belonging to the family of adhesion molecules, which is involved in cell-cell and cell-matrix interactions.
CD 44是一种跨膜受体蛋白，属于黏附分子家族，介导细胞与细胞、细胞与基质之间的黏附。
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FN splice variants play important roles in regulating cell-matrix and matrix-matrix interactions in skeletogenesis and skeletal function in limbs and other sites.
The past decade has seen an extensive investigation of this receptor owing to its importance in mediating cell-cell and cell-matrix interactions in both normal and disease states.