[EN] MULTIFUNCTIONAL CHELATORS, COMPLEXES, AND COMPOSITIONS THEREOF, AND METHODS OF USING SAME [FR] CHÉLATEURS MULTIFONCTIONNELS, COMPLEXES, ET COMPOSITIONS DE CEUX-CI, ET LEURS PROCÉDÉS D'UTILISATION
MULTIFUNCTIONAL CHELATORS, COMPLEXES, AND COMPOSITIONS THEREOF, AND METHODS OF USING SAME
申请人:ILLINOIS INSTITUTE OF TECHNOLOGY
公开号:US20160235870A1
公开(公告)日:2016-08-18
Multifunctional chelators, metal complexes thereof, compositions thereof, and methods of making and use in diagnostic imaging and treatment of cellular disorders.
Multifunctional chelators, complexes, and compositions thereof, and methods of using same
申请人:Chong Hyun-Soon
公开号:US10842893B2
公开(公告)日:2020-11-24
Multifunctional chelators, metal complexes thereof, compositions thereof, and methods of making and use in diagnostic imaging and treatment of cellular disorders.
Novel hexadentate and pentadentate chelators for 64Cu-based targeted PET imaging
作者:Inseok Sin、Chi Soo Kang、Nilantha Bandara、Xiang Sun、Yongliang Zhong、Buck E. Rogers、Hyun-Soon Chong
DOI:10.1016/j.bmc.2014.02.041
日期:2014.4
A series of new hexadentate and pentadentate chelators were designed and synthesized as chelators of Cu-64. The new pentadentate and hexadentate chelators contain different types of donor groups and are expected to form neutral complexes with Cu(II). The new chelators were evaluated for complex kinetics and stability with Cu-64. The new chelators instantly bound to Cu-64 with high labeling efficiency and maximum specific activity. All Cu-64-radiolabeled complexes in human serum remained intact for 2 days. The Cu-64-radiolabeled complexes were further challenged by EDTA in a 100-fold molar excess. Among the Cu-64-radiolabeled complexes evaluated, Cu-64-complex of the new chelator E was well tolerated with a minimal transfer of Cu-64 to EDTA. Cu-64-radiolabeled complex of the new chelator E was further evaluated for biodistribution studies using mice and displayed rapid blood clearance and low organ uptake. Cu-64-chelator E produced a favorable in vitro and in vivo complex stability profiles comparable to Cu-64 complex of the known hexadentate NOTA chelator. The in vitro and in vivo data highlight strong potential of the new chelator E for targeted PET imaging application. (C) 2014 Published by Elsevier Ltd.