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Artificial Mini Dendritic Cells Boost T Cell–Based Immunotherapy for Ovarian Cancer
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Journal Article
Artificial Mini Dendritic Cells Boost T Cell–Based Immunotherapy for Ovarian Cancer
2020
Overview
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.
Publisher
John Wiley & Sons, Inc,John Wiley and Sons Inc,Wiley
Subject
