3 years ago

Efficient Cancer Regression by a Thermosensitive Liposome for Photoacoustic Imaging-Guided Photothermal/Chemo Combinatorial Therapy

Efficient Cancer Regression by a Thermosensitive Liposome for Photoacoustic Imaging-Guided Photothermal/Chemo Combinatorial Therapy
Yanxin Huang, Xiaoguang Yang, Jingwen Yi, Yongli Bao, Yuxin Li, Yue Cao, Luguo Sun, Chunlei Yu, Lei Liu
The capacity to specifically destroy cancer cells while avoiding normal tissue is urgently desirable in cancer treatment. Herein, a photothermal-trigger-released system serves as a photoacoustic imaging agent constructed by entrapping diketopyrrolopyrrole-based conjugated polymers and curcumin in a poly(ethylene glycol) (PEG)-protected thermoresponsive liposomal phospholipid bilayer. This lipid nanostructure can improve the bioavailability of hydrophobic agents for photothermal treatment with high efficiency and deliver the anticancer drug curcumin to the tumor site actuated by near-infrared (NIR) irradiation. A significantly enhanced combined therapeutic effect to HepG2 tumor-bearing mice was acquired in contrast to the result of single therapy alone. These liposomes with the capability of photoacoustic imaging, greater EPR-induced accumulation in tumor sites, and hyperthermia ablation for photothermal chemotherapy show potential for photoacoustic imaging-guided photothermal/chemo combined therapeutic applications.

Publisher URL: http://dx.doi.org/10.1021/acs.biomac.7b00464

DOI: 10.1021/acs.biomac.7b00464

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