The present invention provides for the development of endocytosis-sensitive probes, and a remote method for measuring cellular endocytosis. These probes are based on the reduced water permeability of a nanoparticle or liposomal delivery system, and inherent degradability or disruption of barrier integrity upon endocytosis. The invention also provides for liposomes having combined therapeutic and diagnostic utilities by co-encapsulating ionically coupled diagnostic and therapeutic agents, in one embodiment, by a method using anionic chelators to prepare electrochemical gradients for loading of amphipathic therapeutic bases into liposomes already encapsulating an imaging agent. The invention provides for imaging of therapeutic liposomes by inserting a lipopolymer anchored, remotely sensing reporter molecules into liposomal lipid layer. The invention allows for an integrated delivery system capable of imaging molecular fingerprints in diseased tissues, treatment, and treatment monitoring.
本发明提供了一种用于开发内吞敏感探针的方法,以及一种测量细胞内吞的远程方法。这些探针基于纳米颗粒或脂质体递送系统的降低
水透性,以及内吞时固有的可降解性或屏障完整性破坏。该发明还提供了一种具有联合治疗和诊断功能的脂质体,通过共包埋离子耦合的诊断和治疗剂,其中一种实施方式是使用阴离子
螯合剂的方法,为脂质体内已包埋成像剂的脂质体加载两性治疗碱。该发明通过将脂质体脂质层插入脂质
聚合物锚定的远程感测报告分子来成像治疗脂质体。该发明允许集成递送系统成像疾病组织中的分子指纹,治疗和治疗监测。