Dong Soo LEE,Do Won HWANG,Hongyoon CHOI,Yun-Sang LEE,Jae Min JEONG,Yong Song GHO,Su Chul JANG
申请号：
US15313274
公开号：
US20170143856A1
申请日:
2015.05.13
申请国别(地区):
US
年份:
2017
代理人:
摘要：
A method for labeling exosomes with a radioactive substance using an amine group on surfaces of the exosomes includes providing a cell-derived exosome, treating a surface of the exosome with N-hydroxysuccinimide-azadibenzocyclooctyne (NHS-ADIBO), and mixing the treated exosome with N3-introduced chelator-radioactive substance to conduct a reaction between the chelator and an amine group present on the surface of the exosome, wherein the radioactive substance is introduced inside the exosome by the above reaction. The exosomes can be stably labeled at high labeling efficiency, and the exosomes can be favorably used as an agent for nuclear medicine imaging and therapeutic imaging for confirming the biological distribution of exosomes and whether the exosomes move to target organs and target diseases in animals including a human being.
