Journal
MATERIALS SCIENCE AND ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
Volume 123, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.msec.2021.112014
Keywords
Nano-graphene oxide; Dacarbazine; Chitosan oligosaccharide; CD47; Chemo-photothermal therapy; Melanoma
Categories
Funding
- National Natural Science Foundation of China [31700825, 31872758]
- China Postdoctoral Science Foundation [2017M622907, 2018T110925]
- Science and Technology Project of Colleges and Universities in Shandong Province [J17KB067]
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Nano-graphene oxide (nGO) coated with chitosan oligosaccharide (COS) and CD47 antibody, loaded with dacarbazine (DTIC), shows excellent biocompatibility, photothermal conversion efficiency, high targeting efficiency, fast drug release under NIR irradiation, and tumor cell killing efficiency. The combination of nGO-COS-CD47/DTIC and NIR irradiation significantly enhances early cell apoptosis through the mitochondrial apoptosis pathway, demonstrating promising antitumor efficacy.
Nano-graphene oxide (nGO), an effective drug nanocarrier, is used for simultaneous photothermal therapy (PTT) and near-infrared fluorescence imaging. Dacarbazine (DTIC) is used in the treatment of melanoma with limited clinical efficacy. PTT shows promise in the treatment of skin cancer. Herein, chitosan oligosaccharide (COS)grafted nGO was further modified with CD47 antibody, and loaded DTIC was prepared using a versatile nanoplatform (nGO-COS-CD47/DTIC) for the treatment of melanoma as a synergistic targeted chemo-photothermal therapy. The in vitro results demonstrated that nGO-COS-CD47/DTIC nanocarriers have excellent biocompatibility, photothermal conversion efficiency, high targeting efficiency, fast drug release under NIR irradiation, and tumor cell killing efficiency. Notably, nGO-COS-CD47/DTIC plus NIR irradiation significantly promoted early cell apoptosis through the mitochondrial apoptosis pathway and exhibited a significant joint function of antitumor efficacy. The demonstrated nGO-COS-CD47/DTIC can provide a highly efficient malignant melanoma therapy using this multifunctional intelligent nanoplatform.
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