abstract |
Provided is an activity enhancer for an anticancer agent, containing, as an active ingredient, a D-amino acid residue-containing FNIII14 polypeptide, which is a polypeptide FNIII14 having an amino acid sequence represented by sequence No. 1, in which at least one of the amino acid residues at positions 1 to 13 is a D-amino acid residue. Also provided is an anticancer composition containing an anticancer agent and the activity enhancer for an anticancer agent. |