Journal
NANOSCALE
Volume 14, Issue 6, Pages 2304-2315Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1nr06518a
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Funding
- National Key Research and Development Program of China (China) [2021YFE0103100, 2021YFC2400600]
- NFSC [81925035, 8201101172, 81803736, 81521005]
- Shanghai SciTech Innovation Initiative [19431903100, 18430740800]
- Shanghai Collaborative Innovation Group of Early Diagnosis and Precise Treatment of Hemangiomas and Vascular Malformations [SSMU-ZDCX20180701]
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Lung cancer is a leading cause of cancer death globally, with abdominal metastasis being particularly difficult to treat. Macrophages are being explored as a promising strategy for cell therapy in oncology. A novel approach using celastrol nanoparticle-containing M1-like macrophages shows potential as a therapeutic system for incurable abdominal metastasis of lung cancer.
Lung cancer is the top cause of cancer mortality in the world. Distant metastasis leads to high mortality. Abdominal metastasis of lung cancer is characterized by very poor prognosis and the median survival time is usually less than two months. Therefore, it is of clinical significance to develop a new effective method for the treatment of abdominal metastasis of lung cancer. Cell therapy has promoted the development of new technology and strategy in oncology. Macrophages, as an important component of solid tumors, have also attracted great attention as a promising strategy of cell therapy in oncology. However, the reinfusion of autologous macrophages would be easily re-educated by the tumor microenvironment into a phenotype that promotes tumor development. This work developed a potential therapy using celastrol nanoparticle-containing M1-like macrophages (NP@M1) as a combinatory therapeutic system. M1-like macrophages (M1 phi) not only can serve as a drug delivery carrier for celastrol but also as a biotherapeutic agent. In turn, the celastrol nanoparticles (NPs) can maintain an anticancer polarized status of M1 phi, and subsequently, the exocytosed NPs can also execute the tumor cell-killing effect. Such a system thus provides a two-birds-one-stone therapeutic strategy and a proof of concept for the currently incurable abdominal metastasis of lung cancer.
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