It is an 11 kDa protein that is strongly expressed and subsequently exocytosed by melanoma cells but not benign melanocytes.[7] MIA interacts with MIA-interacting peptide ligands and fibronectin on the cell surface, which eventually induces migration of the melanoma cell.[8] So far, studies in many countries have been conducted to verify the relationship between MIA and melanoma. This evidence concerns the gene FN1 and melanoma.