RADIOSENSITIVITY OF FLUOROPHORES AND USE OF RADIOPROTECTIVE AGENTS FOR DUAL-MODALITY IMAGING
申请人:Immunomedics, Inc.
公开号:US20160199524A1
公开(公告)日:2016-07-14
The present application discloses compositions and methods of use of dual-labeled molecules comprising a fluorescent probe and a radionuclide. The labeled molecules are of use for detection, imaging and/or diagnosis of diseased tissues, such as tumors. In preferred embodiments, the dual-labeled molecules are of use in pre-operative and/or intraoperative imaging, for example to detect margins of malignant tissues to facilitate surgical resectioning. In more preferred embodiments, a radioprotective agent such as an oxygen radical scavenger is used to decrease radiolysis of the fluorescent signal. The labeled molecules bind to a disease-associated antigen, such as a tumor-associated antigen. Exemplary molecules include antibodies, antibody fragments, bispecific antibodies, targetable constructs and targeting peptides, such as bombesin analogues.
本申请公开了一种包含荧光探针和放射性核素的双标记分子的组合物及其使用方法。这些标记分子可用于检测、成像和/或诊断疾病组织,如肿瘤。在优选实施例中,双标记分子可用于术前和/或术中成像,例如检测恶性组织的边缘以便于手术切除。在更优选的实施例中,使用放射保护剂,如氧自由基清除剂,以减少荧光信号的辐解。标记分子结合到与疾病相关的抗原,如肿瘤相关抗原。示例分子包括抗体、抗体片段、双特异性抗体、可靶向构建物和靶向肽,如炸弹素类似物。