Synthesis and biological evaluation of cyclic and branched peptide analogues as ligands for cholecystokinin type 1 receptor(511 views) De Luca S, De Capua A, Saviano M, Della Moglie R, Aloj L, Tarallo L, Pedone C, Morelli G
Istituto di Biostrutture e Bioimmagini CNR, & Centro Interuniversitario per la Ricerca sui Peptidi Bioattivi (CIRPeB), via Mezzocannone, Napoli, Italy.
Department of Nuclear Medicine, Unit of Animal Experimentation, Istituto Nazionale per lo Studio e la Cura dei Tumori, via M. Semmola, 80131 Napoli, Italy
References: Not available.
Synthesis and biological evaluation of cyclic and branched peptide analogues as ligands for cholecystokinin type 1 receptor
A library of cyclic CCK8 analogues, containing unnatural amino acids in the peptide sequence, is prepared using solid-phase synthesis. The structure of these cyclic peptides is based on a previously synthesised compound, cyclo-CCK8, selective for CCK(1) receptor. Structure-activity investigations are performed by evaluating the binding properties of the new analogues. In particular, the binding ability of the cyclic CCK8 analogues is tested by nuclear medicine studies on cell line transfected with CCK(1) receptor. Compounds named cyclo-A4-cyclo-A7 show binding constant in the range 6.0-8.0 microM, with an improved affinity over the previous described cyclo-CCK8, but almost comparable IC(50) values among new analogues towards CCK(1) were obtained.
Synthesis and biological evaluation of cyclic and branched peptide analogues as ligands for cholecystokinin type 1 receptor
Kállay C, Dávid A, Timári S, Nagy EM, Sanna D, Garribba E, Micera G, De Bona P, Pappalardo G, Rizzarelli E, Sóvágó I * Copper(II) complexes of rat amylin fragments(483 views) Dalton T (ISSN: 1477-9234, 1477-9226, 1477-9234electronic), 2011 Oct 14; 40(38): 9711-9721. Impact Factor:3.838 ViewExport to BibTeXExport to EndNote
Aloj L, Aurilio M, Rinaldi V, D'Ambrosio L, Tesauro D, Peitl PK, Maina T, Mansi R, Von Guggenberg E, Joosten L, Sosabowski JK, Breeman WA, De Blois E, Koelewijn S, Melis M, Waser B, Beetschen K, Reubi JC, De Jong M * The EEE project(532 views) Proc Int Cosm Ray Conf Icrc Universidad Nacional Autonoma De Mexico, 2007; 5(HEPART2): 977-980. Impact Factor:0 ViewExport to BibTeXExport to EndNote