Compounds useful as contrast agents in image-guided surgery are provided. The compounds comprise a latent cationic lysosomotropic fragment that is detectable upon cleavage by lysosomal proteases within treated tissues, particularly within tumors and other diseased tissues. Also provided are compositions comprising the compounds and methods for using the compounds, for example in dynamically monitoring protease activity in vivo during image-guided tumor resection surgery.
提供了作为影像引导手术对比剂有用的化合物。这些化合物包括一种潜在的阳离子溶酶体靶向片段,在治疗组织内被溶酶体
蛋白酶裂解后可检测到,特别是在肿瘤和其他患病组织内。还提供了包含这些化合物的组合物和使用这些化合物的方法,例如在影像引导肿瘤切除手术期间动态监测体内
蛋白酶活性。