申请人:Northwestern University
公开号:US20130302258A1
公开(公告)日:2013-11-14
The present invention relates to MRI based imaging. In particular, the present invention provides MRI contrast agents targeted to a HaloTag protein with tunable relaxation properties thereby providing optimal relaxivity for low field strength imaging and the other optimal relaxivity for high field strength imaging. Moreover, the MRI contrast agents are used to detect gene expression (of a gene of interest) in real time in vivo, to detect changes in gene expression (of a gene of interest) over time in, for example, an individual organism, to detect gene expression changes (of a gene of interest) in response to therapeutics, in cell labeling for MR imaging, in clinical diagnostics, and in theranostics.
本发明涉及基于磁共振成像的成像技术。具体来说,本发明提供了针对HaloTag蛋白的MRI对比剂,具有可调节的松弛特性,从而为低场强成像提供最佳的弛豫率,另一方面为高场强成像提供最佳的弛豫率。此外,MRI对比剂用于实时检测体内基因表达(感兴趣基因)情况,用于检测随时间变化的基因表达(感兴趣基因)情况,例如在个体生物体中,用于检测对治疗反应中的基因表达变化(感兴趣基因),用于细胞标记进行MR成像,用于临床诊断和治疗学。