摘要:
A hybrid compound (DO3A-BP) featuring a radiometal bifunctional chelator (1,4,7,10-tetraazacyclotetradecane-N,N',N '',N '',N'"-tetraacetic acid, DOTA) and an osteoclast-targeting moiety ( bisphosphonate) was designed and synthesized. The In-111-labeled complex of DO3A-BP showed significantly elevated uptake in osteoclasts compared to the undifferentiated adherent bone marrow derived cells. Biodistribution studies revealed a favorable tissue distribution pro. le in normal mice with high bone uptake and long retention, and low or negligible accumulation in non-target organs. (C) 2008 Elsevier Ltd. All rights reserved.