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A Two-way Cruise Nanosatellite Promotes Metastasis Inhibition by Immuno-chemotherapy.

08:00 EDT 11th June 2019 | BioPortfolio

Summary of "A Two-way Cruise Nanosatellite Promotes Metastasis Inhibition by Immuno-chemotherapy."

Currently, immuno-chemotherapy based on tumor-associated macrophages (TAMs) is mainly used for elimination of M2 macrophages. However, these methods cannot make full use of the positive immune-modulatory effects of macrophages. This study explores a two-way cruise strategy for combining immunotherapy based on TAM phenotype reversal with classical chemotherapy, the nanosatellites (DOX@HFn-PGZL@Res) is proposed to accurately deliver the chemotherapeutic agents and immune activators to their respective target cells. When the delivery system is recruited to tumor microenvironment, the nanosatellites are separated into DOX@HFn and Res@GZL nanoparticles, which can enter cancer cells and M2-TAMs, respectively. The data show that DOX@HFn-PGZL@Res successfully re-educate M2 to M1 macrophages, resulting in an activated immune response and effective inhibition of tumor invasion and metastasis in vitro and in vivo. In general, this work describes a two-way homing nanoplatform for the integration of immunotherapy and chemotherapy, which provides a new idea for the "attack-defense" integrated treatment of tumor.

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Name: Biomacromolecules
ISSN: 1526-4602
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