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Liquid nitrogen frozen cells for chemotherapy drug delivery and vaccination of melanoma

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机构: [1]Naval Med Univ, Changhai Hosp, Dept Plast Surg, Shanghai 200433, Peoples R China [2]Tongji Univ, Shanghai East Hosp, Inst Regenerat Med, Inst Biomed Engn & Nano Sci,Sch Med, Shanghai 200092, Peoples R China [3]Naval Med Univ, Changhai Hosp, Dept Orthoped Trauma, Shanghai 200433, Peoples R China
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关键词: Liquid nitrogen frozen Drug delivery Chemotherapy Vaccine Melanoma

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Purpose: Cancer vaccine (CV) has thrived as a promising tool for cancer prevention and treatment. However, how to maintain the integrity and diversity of individualized vaccine antigens and activate the adaptive immune system is still challenging.Methods: Herein, a preventive and therapeutic vaccine platform for in situ effective multi-model synergistic therapy is developed. In our study, we process B16F10 cells by liquid nitrogen frozen (LNF) to obtain LNF cells, the characterization of LNF cells were conducted. Moreover, the anti-tumor effect and immune activation ability were studied, and the role as a CV were investigated.Results: The LNF cells preserve intact cellular structure and tumor-associated self-antigen gp100. Moreover, LNF cells have the ability of loading and releasing doxorubicin (DOX). Except for the anti-tumor effect of chemotherapy brought by DOX, the LNF cells can promote the maturation of dendritic cells (DCs) and induce immune response by activating CD4(+) and CD8(+) T cells, particularly with the existence of adjuvant, R848. Specifically, the CD8(+) T cells of mice in LNF-DOX/R848 group are 6 times of that in PBS group in tumor microenvironment, and twice in spleen. Therefore, LNF cells can also be utilized as a CV. Vaccination with LNF/R848 cells effectively suppress the tumor growth in mice by fivefold as compared to the control group.Conclusion: In this work, we obtain the LNF cells with a simple procedure. The LNF cells not only provides a tumor cells-based multi-modal system for cancer therapy but inspires new insights into future development of individualized CVs strategies.

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出版当年[2023]版:
大类 | 3 区 医学
小类 | 4 区 肿瘤学
最新[2023]版:
大类 | 3 区 医学
小类 | 4 区 肿瘤学
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出版当年[2023]版:
Q3 ONCOLOGY
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Q3 ONCOLOGY

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第一作者机构: [1]Naval Med Univ, Changhai Hosp, Dept Plast Surg, Shanghai 200433, Peoples R China
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