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- W4361817545 abstract "<div>Abstract<p>Current treatments for liver metastases arising from primary breast and lung cancers are minimally effective. One reason for this unfavorable outcome is that liver metastases are poorly vascularized, limiting the ability to deliver therapeutics from the systemic circulation to lesions. Seeking to enhance transport of agents into the tumor microenvironment, we designed a system in which nanoparticle albumin-bound paclitaxel (nAb-PTX) is loaded into a nanoporous solid multistage nanovector (MSV) to enable the passage of the drug through the tumor vessel wall and enhance its interaction with liver macrophages. MSV enablement increased nAb-PTX efficacy and survival in mouse models of breast and lung liver metastasis. MSV-nAb-PTX also augmented the accumulation of paclitaxel and MSV in the liver, specifically in macrophages, whereas paclitaxel levels in the blood were unchanged after administering MSV-nAb-PTX or nAb-PTX. <i>In vitro</i> studies demonstrated that macrophages treated with MSV-nAb-PTX remained viable and were able to internalize, retain, and release significantly higher quantities of paclitaxel compared with treatment with nAb-PTX. The cytotoxic potency of the released paclitaxel was also confirmed in tumor cells cultured with the supernatants of macrophage treated with MSV-nAB-PTX. Collectively, our findings showed how redirecting nAb-PTX to liver macrophages within the tumor microenvironment can elicit a greater therapeutic response in patients with metastatic liver cancer, without increasing systemic side effects. <i>Cancer Res; 76(2); 429–39. ©2016 AACR</i>.</p></div>" @default.
- W4361817545 created "2023-04-05" @default.
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- W4361817545 date "2023-03-30" @default.
- W4361817545 modified "2023-09-27" @default.
- W4361817545 title "Data from Redirecting Transport of Nanoparticle Albumin-Bound Paclitaxel to Macrophages Enhances Therapeutic Efficacy against Liver Metastases" @default.
- W4361817545 doi "https://doi.org/10.1158/0008-5472.c.6507663.v1" @default.
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