Upconversion nanocomposite for programming combination cancer therapy by precise control of microscopic temperature.
Upconversion nanocomposite for programming combination cancer therapy by precise control of microscopic temperature.
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DOI：
10.1038/s41467-018-04571-4
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发表时间：
2018-06-05
影响因子：
16.6
通讯作者：
Li F
中科院分区：
文献类型：
--
作者：
Zhu X;Li J;Qiu X;Liu Y;Feng W;Li F
Combinational administration of chemotherapy (CT) and photothermal therapy (PTT) has been widely used to treat cancer. However, the scheduling of CT and PTT and how it will affect the therapeutic efficacy has not been thoroughly investigated. The challenge is to realize the sequence control of these two therapeutic modes. Herein, we design a temperature sensitive upconversion nanocomposite for CT-PTT combination therapy. By monitoring the microscopic temperature of the nanocomposite with upconversion luminescence, photothermal effect can be adjusted to achieve thermally triggered combination therapy with a sequence of CT, followed by PTT. We find that CT administered before PTT results in better therapeutic effect than other administration sequences when the dosages of chemodrug and heat are kept at the same level. This work proposes a programmed method to arrange the process of combination cancer therapy, which takes full advantage of each therapeutic mode and contributes to the development of new cancer therapy strategies. The combination of chemo and photothermal therapy is widely used to treat cancer but control of chemo and thermal effects is needed for optimized treatment. Here, the authors describe an upconversion nanoparticle which can be used for controlled sequential treatment by controlling laser power.
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