Japan Science and Technology Agency

Toru Oya

Akira Tsuji

Ikumi Tamai

Yoshimichi Sai

Noubuhiko Yui

Ken-ichi Miyamoto

The present invention is to provide a tissue-specific transporter inhibitor which is not absorbed through the digestive tract and can prevent deterioration in the QOL of a patient caused by diet therapy, and a therapeutic drug for tissue dysfunction diseases and a therapeutic drug for suppressing the progress of chronic renal failure containing the inhibitor as an active ingredient. A tissue-specific transporter inhibitor which is not absorbed through the digestive tract is constructed by introducing a dipeptide which is a ligand of an oligopeptide transporter 1 into a supramolecular structure polyrotaxane wherein its structurally modified active residue is expected to be excellent in the interaction with a transmembrane transporter.

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Ishikawa, Japan

Toru Oya