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Issue 29, 2018
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Development of a thermosensitive protein conjugated nanogel for enhanced radio-chemotherapy of cancer

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Abstract

Although chemo-radiotherapy has been widely applied in clinics for cancer treatment, current strategies still face many challenges including serious side-effects and drug resistance. Herein, we develop a chemically cross-linked poly-N,N′-dimethyl aminoethyl methacrylate (PDMAEMA) smart nanogel as an excellent thermosensitive nanocarrier to load both an anticancer drug, doxorubicin (DOX) and a radioisotope, 131I-labeled albumin, for enhanced chemo-radioisotope therapy. Such a PDMAEMA nanogel in the solution form at room temperature can be easily injected into a tumor, in which it would be transformed into a gel at body temperature. Sustained drug release occurs in the tumor owing to the pH sensitive switching activity of the nanogel. In addition, the in situ thermogelling behavior of PDMAEMA leads to the long-term retention of 131I-labeled albumin within the tumor. In vivo chemo-radiotherapy is then conducted, achieving excellent therapeutic efficacy due to the sustained drug release and 131I retention for a long time in the cancer lesions. Our newly developed strategy of using a thermosensitive polymer for enhancing chemo-radiotherapy may be considered as a promising platform for combined cancer therapy without inducing obvious side-effects compared to the traditional chemo or radiotherapy.

Graphical abstract: Development of a thermosensitive protein conjugated nanogel for enhanced radio-chemotherapy of cancer

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Publication details

The article was received on 17 May 2018, accepted on 27 Jun 2018 and first published on 29 Jun 2018


Article type: Paper
DOI: 10.1039/C8NR03986K
Citation: Nanoscale, 2018,10, 13976-13985
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    Development of a thermosensitive protein conjugated nanogel for enhanced radio-chemotherapy of cancer

    D. Maiti, Y. Chao, Z. Dong, X. Yi, J. He, Z. Liu and K. Yang, Nanoscale, 2018, 10, 13976
    DOI: 10.1039/C8NR03986K

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