Development of Novel Melanocortin Receptor Agonists Based on the Cyclic Peptide Framework of Sunflower Trypsin Inhibitor-1.
Development of Novel Melanocortin Receptor Agonists Based on the Cyclic Peptide Framework of Sunflower Trypsin Inhibitor-1.
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DOI:
10.1021/acs.jmedchem.8b00170
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发表时间:
2018-04-26
影响因子:
7.3
通讯作者:
Craik DJ
中科院分区:
文献类型:
--
作者:
Durek T;Cromm PM;White AM;Schroeder CI;Kaas Q;Weidmann J;Ahmad Fuaad A;Cheneval O;Harvey PJ;Daly NL;Zhou Y;Dellsén A;Österlund T;Larsson N;Knerr L;Bauer U;Kessler H;Cai M;Hruby VJ;Plowright AT;Craik DJ
Ultrastable cyclic peptide frameworks offer great potential for drug design due to their improved bioavailability compared to their linear analogues. Using the sunflower trypsin inhibitor-1 (SFTI-1) peptide scaffold in combination with systematic N-methylation of the grafted pharmacophore led to the identification of novel subtype selective melanocortin receptor (MCR) agonists. Multiple bicyclic peptides were synthesized and tested toward their activity at MC1R and MC3–5R. Double N-methylated compound 18 showed a pKi of 8.73 ± 0.08 (Ki = 1.92 ± 0.34 nM) and a pEC50 of 9.13 ± 0.04 (EC50 = 0.75 ± 0.08 nM) at the human MC1R and was over 100 times more selective for MC1R. Nuclear magnetic resonance structural analysis of 18 emphasized the role of peptide bond N-methylation in shaping the conformation of the grafted pharmacophore. More broadly, this study highlights the potential of cyclic peptide scaffolds for epitope grafting in combination with N-methylation to introduce receptor subtype selectivity in the context of peptide-based drug discovery.
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影响因子:
4.8
作者:
Daly, Norelle L.;Chen, Yi-Kuang;Craik, David J.
通讯作者:
Craik, David J.
影响因子:
2.1
作者:
Biron, E;Chatterjee, J;Kessler, H
通讯作者:
Kessler, H
影响因子:
15
作者:
Doedens, Lucas;Opperer, Florian;Cai, Minying;Beck, Johannes G.;Dedek, Matt;Palmer, Erin;Hruby, Victor J.;Kessler, Horst
通讯作者:
Kessler, Horst
影响因子:
4.8
作者:
Eliasen, Rasmus;Daly, Norelle L.;Craik, David J.
通讯作者:
Craik, David J.
DOI:
10.1107/s0907444909042073
发表时间:
2010-01
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Chen VB;Arendall WB 3rd;Headd JJ;Keedy DA;Immormino RM;Kapral GJ;Murray LW;Richardson JS;Richardson DC
通讯作者:
Richardson DC