Novel, potent, and radio-iodinatable somatostatin receptor 1 (sst1) selective analogues.
Novel, potent, and radio-iodinatable somatostatin receptor 1 (sst1) selective analogues.
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DOI:
10.1021/jm801314f
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发表时间:
2009-05-14
影响因子:
7.3
通讯作者:
Reubi JC
中科院分区:
文献类型:
--
作者:
Erchegyi J;Cescato R;Grace CR;Waser B;Piccand V;Hoyer D;Riek R;Rivier JE;Reubi JC
The proposed sst1 pharmacophore derived from the NMR structures of a family of mono- and dicyclic undecamers was used to design octa-, hepta- and hexamers with high affinity and selectivity for the somatostatin sst1 receptor. These compounds were tested for their in vitro binding properties to all five somatostatin (SRIF) receptors using receptor autoradiography; those with high SRIF receptor subtype 1 (sst1) affinity and selectivity were shown to be agonists when tested functionally in a luciferase reporter gene assay. Des-AA1,4-6,10,12,13-[DTyr2,DAgl(NMe,2naphthoyl)8,IAmp9]-SRIF-Thr-NH2 (25) was radio-iodinated (125I-25) and specifically labeled sst1-expressing cells and tissues. 3D NMR structures were calculated for des-AA1,4-6,10,12,13-[DPhe2,DTrp8,IAmp9]-SRIF-Thr-NH2 (16), des-AA1,2,4-6,10,12,13-[DAgl(NMe,2naphthoyl)8,IAmp9]-SRIF-Thr-NH2 (23) and des-AA1,2,4-6,10,12,13-[DAgl(NMe,2naphthoyl)8,IAmp9,Tyr11]-SRIF-NH2 (27) in DMSO. Though the analogues have the sst1 pharmacophore residues at the previously determined distances from each other, the positioning of the aromatic residues in 16, 23 and 27 is different from that described earlier suggesting an induced fit mechanism for sst1 binding of these novel, less constrained sst1-selective family members.
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影响因子:
7.3
作者:
Grace, CRR;Durrer, L;Riek, R
通讯作者:
Riek, R
影响因子:
7.3
作者:
Grace, CRR;Koerber, SC;Riek, R
通讯作者:
Riek, R
DOI:
10.1111/j.1365-2362.2007.01848.x
发表时间:
2007-09-01
影响因子:
5.5
作者:
Bocci, G.;Culler, M. D.;Del Tacca, M.
通讯作者:
Del Tacca, M.
影响因子:
2.9
作者:
Grace, Christy Rani R.;Erchegyi, Judit;Riek, Roland
通讯作者:
Riek, Roland
影响因子:
2.5
作者:
BASKIN, DG;WIMPY, TH
通讯作者:
WIMPY, TH