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Neuropeptide Y (NPY) Y4 receptor selective agonists based on NPY(32-36): development of an anorectic Y4 receptor selective agonist with picomolar affinity.

Abstract：

:We have previously shown [Cys-Trp-Arg-Nva-Arg-Tyr-NH(2)](2), 1, to be a moderately selective neuropeptide Y (NPY) Y(4) receptor agonist. Toward improving the selectivity and potency for Y(4) receptors, we studied the effects of dimerizing H-Trp-Arg-Nva-Arg-Tyr-NH(2) using various diamino-dicarboxylic acids containing either di-, tri-, or tetramethylene spacers. These parallel dimers, 2A, 2B, 3, 4A, and 4B, and the corresponding linear tandem dimer and trimer analogues, 5 and 6, had enhanced selectivity and affinity for Y(4) receptors compared to 1 (Table 1). Substitution of Trp and Nva with Tyr and Leu, respectively, as in 2,7-d/l-diaminosuberic acid derivatized dimer, 7, resulted in a superior Y(4) selective agonist with picomolar affinity. Intraperitoneal (ip) injection of 7 potently inhibited food intake in fasted mice. Moreover, 7 (ip) inhibited the food intake in wild-type mice and not in Y(4)(-/-) knock-out mice, confirming that the actions of 7 on food intake are not due to global effects, but specifically mediated Y(4) receptors.

journal_name

J Med Chem

journal_title

Journal of medicinal chemistry

authors

Balasubramaniam A,Mullins DE,Lin S,Zhai W,Tao Z,Dhawan VC,Guzzi M,Knittel JJ,Slack K,Herzog H,Parker EM

doi

10.1021/jm050907d

subject

Has Abstract

pub_date

2006-04-20 00:00:00

pages

2661-5

issue

8

eissn

0022-2623

issn

1520-4804

journal_volume

49

pub_type

杂志文章

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