Tumor cell invasion-inhibiting peptides, peptide complexes and cancer metastasis inhibitors

摘要

The present invention is a peptide having from 5 to 20 amino acid residues having tumor cell invasion-inhibiting activities. As such a peptide, a peptide represented by any one of the formulas (1) to (13) is preferred among peptides.PPFurther, the present invention is a cancer metastasis inhibitor comprising the above peptide as an active ingredient.PPFurthermore, the present invention is a peptide complex having a peptide having tumor cell invasion-inhibiting activities and a polymer derived from a vital body chemically bonded to each other. As such a peptide, a peptide represented by any one of the formulas (1) to (14) is preferred among peptides. As the polymer derived from a vital body, a protein such as albumin or globulin is preferred. PPStill further, the present invention is a cancer metastasis inhibitor comprising the above peptide complex as an active ingredient.