精品文档---下载后可任意编辑MAGE-3 多肽纳米疫苗的制备及其对小鼠胃癌种植瘤的抑瘤效应的开题报告【摘要】MAGE-3 属于肿瘤抗原基因家族，其在多种肿瘤中的表达率高，是一种非常重要的癌症免疫治疗靶点。本讨论旨在制备 MAGE-3 多肽纳米疫苗，并讨论其对小鼠胃癌种植瘤的抑瘤效应。本实验通过化学合成方法合成了 MAGE-3 多肽，并利用 PVA 聚合物作为载体，制备了 MAGE-3 多肽纳米疫苗。接下来，通过免疫学实验，评估疫苗的免疫原性和免疫保护效果。实验结果表明，MAGE-3 多肽纳米疫苗可以有效地刺激小鼠的免疫系统产生细胞免疫和体液免疫反应，显著提高小鼠体内的 MAGE-3 特异性 T淋巴细胞和 B 淋巴细胞的数量和活性水平。同时，在小鼠胃癌种植瘤模型实验中，MAGE-3 多肽纳米疫苗可以显著延长小鼠的生存时间，减少肿瘤生长速度。本讨论结果表明，MAGE-3 多肽纳米疫苗具有良好的免疫原性和免疫保护效果，可作为一种新型癌症免疫治疗工具。【关键词】MAGE-3；多肽纳米疫苗；胃癌；抑瘤效应【Abstract】MAGE-3 belongs to the tumor antigen gene family, and its expression is high in many tumors. It is a very important cancer immunotherapy target. The aim of this study was to prepare MAGE-3 peptide nano-vaccine and study its anti-tumor effect on gastric cancer xenografts in mice. In this experiment, MAGE-3 peptide was synthesized by chemical synthesis, and PVA polymer was used as a carrier to prepare MAGE-3 peptide nano-vaccines. Then, the immunogenicity and immune protection effect of the vaccine were evaluated by immunology experiments. The results showed that MAGE-3 peptide nano-vaccine can effectively stimulate the mouse immune system to produce cellular and humoral immune responses, significantly increase the number and activity of MAGE-3 specific T lymphocytes and B lymphocytes in mice. At the same time, in the gastric cancer xenograft model experiment, MAGE-3 peptide nano-vaccine can significantly prolong the survival time of mice and reduce the tumor growth rate. The results of this study showed that MAGE-3 peptide nano-vaccine has good immunogenicity and immune protection effect, and can be used as a new cancer immunotherapy tool.【Keywords】MAGE-3; peptide nano-vaccine; gastric cancer; anti-tumor effect
