基因工程细胞膜纳米疫苗用于癌症免疫疗法
Yuanwei Pan1,2, Xianjia Wu2, Lujie Liu2
1The Research and Application Center of Precision Medicine, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450014, China.
Advanced healthcare materials
|February 6, 2024
概括
基因工程癌症纳米疫苗共同表达CD40L和PD1,增强抗瘤免疫力. 这种方法改善了树突细胞激活和免疫检查点阻塞疗法.
科学领域:
- 生物医学工程 生物医学工程
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
背景情况:
- 癌症纳米疫苗旨在促进细胞毒性T细胞反应,以改善免疫检查点阻塞 (ICB) 疗法.
- 有限的共刺激分子表达阻碍了当前纳米疫苗的临床应用.
研究的目的:
- 开发一种基因工程癌症细胞膜纳米疫苗,同时过度表达CD40L和PD1.
- 增强抗瘤免疫力,提高癌症免疫疗法的疗效.
主要方法:
- 基因工程癌症细胞膜过度表达CD40L和PD1.
- 利用细胞膜中的瘤抗原和协同刺激分子进行DC激活.
- 评估了纳米疫苗淋巴结贩运,保留和DC成熟.
- 在乳腺瘤小鼠模型中评估治疗疗效.
主要成果:
- 工程纳米疫苗有效地刺激了树突细胞 (DC) 介导的免疫激活.
- 纳米疫苗中的PD1过度表达阻断了PD1/PD-L1信号通路,增强了抗瘤反应.
- 与原始细胞膜相比,已经证明加强了淋巴结的流通和保留.
- 在临床前乳腺癌模型中实现了DC成熟度的两倍增加和显著的治疗疗效.
结论:
- 结合CD40L和PD1的基因工程细胞膜纳米疫苗为癌症免疫治疗提供了一个有希望的策略.
- 这种方法通过刺激T细胞反应和克服免疫抑制来协同增强抗瘤免疫力.
- 开发的纳米疫苗为先进的癌症治疗提供了一个简单,安全和强大的平台.
更多相关视频
12:43Generation of a Novel Dendritic-cell Vaccine Using Melanoma and Squamous Cancer Stem Cells
Published on: January 6, 2014
11.9K
11:07Whole-animal Imaging and Flow Cytometric Techniques for Analysis of Antigen-specific CD8+ T Cell Responses after Nanoparticle Vaccination
Published on: April 29, 2015
13.3K
相关概念视频
01:30Cancer Vaccines
367
Cancer treatment vaccines are a rapidly evolving field that offers a promising approach to immunotherapy. Unlike traditional vaccines that prevent diseases, cancer treatment vaccines are designed to treat existing cancers by stimulating the immune system to recognize and attack cancer cells.
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...
367
01:27Tumor Immunotherapy
526
Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.
526
02:57Targeted Cancer Therapies
7.6K
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
7.6K