The invention relates to novel multi-modality probes for imaging, tracking and analyzing stem cells and related biological samples, and methods of preparation and use thereof. The molecular probes of the invention are constructed, for example, by utilizing (a) the high selectivity of long hydrocarbon chains for binding to plasma membranes of cells, (b) a near-infrared (NIR) dye for optical imaging, and (c) a radionuclide for PET or SPECT imaging. The in vitro and in vivo data of the optical and radiolabeled probes demonstrated their utility for detecting the presence of stem cells with multiple imaging modalities.
本发明涉及一种新型的多模态探针,用于成像、跟踪和分析干细胞及相关
生物样品,以及其制备和使用方法。本发明的分子探针是通过利用(a)长
碳链对细胞质膜的高选择性结合,(b)近红外(NIR)
染料进行光学成像,以及(c)放射性核素进行PET或
SPECT成像,构建而成的。光学和放射性标记探针的体外和体内数据证明了它们在多种成像模式下检测干细胞存在的实用性。