期刊
THERANOSTICS
卷 11, 期 5, 页码 2034-2047出版社
IVYSPRING INT PUBL
DOI: 10.7150/thno.51344
关键词
biocompatible nanoparticles; cancer imaging; theranostic agents; drug delivery; fluorescence
资金
- AIRC [24914]
- MIUR [232]
- post doc pool foundation [0116947-3]
Research has shown that nano- and microsized extracellular vesicles (EVs) play a significant role in intercellular communication and can be used for targeted cancer therapy. By labeling EVs with indocyanine green (ICG) and tracking their distribution, it was found that nanoparticles with cancer tropism exist in the blood of colorectal cancer (CRC) patients. In mouse models, it was demonstrated that transplanted EVs were able to recognize tumors and deliver tumor-interfering molecules, indicating the therapeutic potential of autologous EVs for cancer treatment.
Nano- and microsized extracellular vesicles (EVs) are naturally occurring cargo-bearing packages of regulatory macromolecules, and recent studies are increasingly showing that EVs are responsible for physiological intercellular communication. Nanoparticles encapsulating anti-tumor theranostics represent an attractive exosome-interfering strategy for cancer therapy. Methods: Herein, by labeling plasma-derived EVs with indocyanine green (ICG) and following their biodistribution by in vivo and ex vivo imaging, we demonstrate the existence of nanoparticles with a highly selective cancer tropism in the blood of colorectal cancer (CRC) patients but not in that of healthy volunteers. Results: In CRC patient-derived xenograft (PDX) mouse models, we show that transplanted EVs recognize tumors from the cognate nanoparticle-generating individual, suggesting the theranostic potential of autologous EVs encapsulating tumor-interfering molecules. In large canine breeds bearing spontaneous malignant skin and breast tumors, the same autologous EV transplantation protocol shows comparable safety and efficacy profiles. Conclusions: Our data show the existence of an untapped resource of intercellular communication present in the blood of cancer patients, which represents an efficient and highly biocompatible way to deliver molecules directly to the tumor with great precision. The novel EV-interfering approach proposed by our study may become a new research direction in the complex interplay of modern personalized cancer therapy.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据