A NEW APPROACH TO ENHANCE BIOAVAILABILITY OF BIOLOGICALLY-ACTIVE PEPTIDES - CONJUGATION OF A DELTA-OPIOID AGONIST TO BETA-CYCLODEXTRIN

被引:23
作者
HRISTOVAKAZMIERSKI, MK
HORAN, P
DAVIS, P
YAMAMURA, HI
KRAMER, T
HORVATH, R
KAZMIERSKI, WM
PORRECA, F
HRUBY, VJ
机构
[1] UNIV ARIZONA,DEPT CHEM,TUCSON,AZ 85721
[2] UNIV ARIZONA,DEPT PHARMACOL,TUCSON,AZ 85721
关键词
D O I
10.1016/S0960-894X(00)80675-7
中图分类号
R914 [药物化学];
学科分类号
100701 ;
摘要
The cyclic delta opioid agonist [p-I-Phe4]DPDPE, 1, was conjugated to mono-6-amino-permethyl-beta-cyclodextrin at the C-terminus to improve the bioavailability of 1. In the rat brain binding assay, the conjugate 8 showed an IC50 = 134 nM vs. a delta ligand and IC50 > 10 muM at the mu receptor, making it less potent and selective than 1. However, 8 shows antinociceptive properties (i.v.) in the mouse tail flick test and prolonged activity.
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页码:831 / 834
页数:4
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