Certain short peptide sequences in fibronectin, such as RGD peptide in the type III domain, the LDV sequence in the CS1 region, the REDV peptide sequence in the CS5 region produced by the alternative splicing of the IIICS region of the fibronectin and the peptides I and II in the heparin -binding domain of the fibronectin contribute to the process of tumor cell adhesion and migration [28-34]. Here, FN1 is linked to neoplasm.