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Near-infrared (NIR) photothermal therapy has developed very quickly in recent years. However, its clinical applications are hindered by many practical problems, such as low accumulation in tumors, high laser power density and high biotoxicity in vivo . Herein, a versatile system combining chemotherapy with photothermal therapy for cancer therapy using ultrasmall Pd nanosheets (SPNS) has been developed. The SPNS can serve as pH-responsive drug carriers to efficiently deliver DOX into cancer cells and tumors. On the other hand, the coordinative loading of DOX on SPNS enhances its accumulation in tumor tissue. So we can efficiently ablate tumor using low-intensity laser radiation. Importantly, with ultrasmall size (~4.4 nm), SPNS surface-functionalized with reduced glutathione (GSH) can be cleared from the body through the renal system into the urine. This cancer therapeutic nanosystem, which exhibits a significant synergistic effect and low systemic toxicity, has great potential for clinical applications.
FullText for HTML:https://doi.org/10.1007/s12274-014-0605-x
We thank Prof. Xuan Zhu and Ms. Meiqin Su at Xiamen University for helping with the animal experiments. This work was supported by the Ministry of Science and Technology of China (2011CB932403, 2014CB932004), and the National Natural Science Foundation of China (21131005).
Reprints and Permission requests may be sought directly from editorial office.
Email: nanores@tup.tsinghua.edu.cn