1. Artificial Mini Dendritic Cells Boost T Cell–Based Immunotherapy for Ovarian Cancer
- Author
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Yu Li, Jiani Yang, Shanshan Cheng, Zhiyou Yang, Cheng Zhong, Yue Jin, Yu Wang, Jun Ma, Yuan Li, Nan Zhang, Chao Wang, and Cong Xu
- Subjects
General Chemical Engineering ,T cell ,medicine.medical_treatment ,Antigen presentation ,T cells ,General Physics and Astronomy ,Medicine (miscellaneous) ,02 engineering and technology ,010402 general chemistry ,01 natural sciences ,Biochemistry, Genetics and Molecular Biology (miscellaneous) ,Metastasis ,Immune system ,Cancer immunotherapy ,Medicine ,General Materials Science ,dendritic cells ,lcsh:Science ,Full Paper ,business.industry ,General Engineering ,Cancer ,Immunotherapy ,Dendritic cell ,Full Papers ,021001 nanoscience & nanotechnology ,medicine.disease ,0104 chemical sciences ,medicine.anatomical_structure ,ovarian cancer ,Cancer research ,lcsh:Q ,immunotherapy ,0210 nano-technology ,business ,nanovaccines - Abstract
Ovarian cancer is the most lethal gynecological malignancy with high recurrence rates and low survival rates, remaining a disease of high unmet need. Cancer immunotherapy, which harnesses the potential of the immune system to attack tumors, has emerged as one of the most promising treatment options in recent years. As an important form of immunotherapy, dendritic cell (DC)–based vaccines have demonstrated the ability to induce an immune response, while clinical efficacy of DC vaccines remains unsubstantiated as long‐term benefit is only reported in a restricted proportion of patients. Here, a biomimetic nanovaccine derived from DCs is developed through cell membrane coating nanotechnology. This nanovaccine, denoted “mini DC,” inherits the ability of antigen presentation and T cells' stimulation from DCs and is shown to elicit enhanced activation of T cells both in vitro and in vivo. In a mouse model of ovarian cancer, mini DCs exhibit superior therapeutic and prophylactic efficacy against cancer including delayed tumor growth and reduced tumor metastasis compared with DC vaccine. These findings suggest that mini DCs may serve as a facile and potent vaccine to boost anticancer immunotherapy., This work reports a biomimetic nanovaccine derived from dendritic cells (DCs). This nanovaccine possesses abilities of antigen presentation and T cells' stimulation and is shown to elicit enhanced activation of T cells both in vitro and in vivo. It also exhibits superior therapeutic and prophylactic efficacy against tumors compared with DC vaccine in a mouse model of ovarian cancer.
- Published
- 2020