Relationship between structure and P-glycoprotein inhibitory activity of dimeric peptides related to the Dmt-Tic pharmacophore

被引:3
作者
Ambo, Akihiro [1 ]
Ohkatsu, Hiromichi [1 ]
Minamizawa, Motoko [1 ]
Watanabe, Hideko [1 ]
Sugawara, Shigeki [1 ]
Nitta, Kazuo [1 ]
Tsuda, Yuko [2 ]
Okada, Yoshio [2 ]
Sasaki, Yusuke [1 ]
机构
[1] Tohoku Pharmaceut Univ, Aoba Ku, Sendai, Miyagi 9818558, Japan
[2] Kobe Gakuin Univ, Chuo Ku, Kobe, Hyogo 6508586, Japan
关键词
Dimeric peptide analogs; P-glycoprotein inhibitory activity; Structure-activity relationship; Dmt-Tic pharmacophore; BLOOD-BRAIN-BARRIER; MULTIDRUG-RESISTANCE; D-PENICILLAMINE(2,5) ENKEPHALIN; ANALOGS; ANTINOCICEPTION; TRANSPORTER; BINDING; CANCER; POTENT; DRUGS;
D O I
10.1016/j.bmcl.2012.01.107
中图分类号
R914 [药物化学];
学科分类号
100701 ;
摘要
To develop novel inhibitors of P-glycoprotein (P-gp), dimeric peptides related to an opioid peptide containing the Dmt-Tic pharmacophore were synthesized and their P-gp inhibitory activities were analyzed. Of the 30 analogs synthesized, N-alpha,N-epsilon-[(CH3)(2)Mle-Tic](2)Lys-NH2 and its D-Lys analog were found to exhibit potent P-gp inhibitory activity, twice that of verapamil, in doxorubicin-resistant K562 cells. Structure-activity studies indicated that the correct hydrophobicity and spacer length between two aromatic rings are important structural elements in this series of analogs for inhibition of P-gp. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2192 / 2194
页数:3
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