极简主义纳米疫苗与优化的两共聚物用于癌症免疫疗法
Le Niu1, Yu Miao1, Zhiqin Cao1
1Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China.
ACS nano
|January 17, 2024
概括
研究人员开发了一种新型纳米疫苗,使用简约的共聚合物 (C-25) 进行有效的癌症免疫治疗. 这种纳米疫苗增强了免疫反应,并显示出延迟瘤生长的潜力,即使与抗PD-L1疗法结合使用.
科学领域:
- 聚合物化学 聚合物化学
- 免疫学 免疫学 免疫学
- 纳米技术纳米技术
背景情况:
- 癌症疫苗的目的是引起针对瘤的免疫反应,以进行免疫治疗.
- 有效的癌症疫苗需要时空共递抗原和辅助剂.
- 开发这样的系统在癌症治疗中是一个重大挑战.
研究的目的:
- 为了合成和选新的移植共聚合物作为纳米疫苗载体.
- 评估选择的纳米疫苗在激活免疫细胞和控制瘤生长方面的有效性.
- 研究纳米疫苗与免疫治疗结合的潜力.
主要方法:
- 一个共聚物库 (PEGMA-co-BMA-co-C7AMA) 的合成,其组成不同.
- 对树突细胞 (DC) 成熟诱导的共聚物的选.
- RNA测序 (RNA-Seq) 分析以了解DC激活通路.
- 封装一个模型抗原 (OVA257-280) 形成纳米疫苗.
- 在预防和治疗瘤模型中对纳米疫苗疗效的评估.
主要成果:
- 确定C-25共聚物作为有效的纳米疫苗载体,促进小鼠骨髓衍生树突细胞 (BMDC) 的成熟.
- RNA-Seq揭示了C-25通过多个信号通路激活DC,引发强大的免疫效应.
- 在没有额外的辅助剂的情况下,C-25/OVA257-280纳米疫苗促进了DC成熟和抗原交叉呈现.
- 在B16F10-OVA瘤模型中证明了预防疗效.
- 与抗PD-L1联合治疗显著延迟了先前存在的瘤生长.
结论:
- 开发了一种极简,高效的纳米疫苗 (C-25/OVA257-280) 用于癌症免疫治疗.
- 纳米疫苗有效地激活瘤特异性免疫反应.
- 显示出治疗现有瘤的巨大潜力,特别是与免疫检查点抑制剂结合使用时.
更多相关视频
07:33Preparation, Characteristics, Toxicity, and Efficacy Evaluation of the Nasal Self-Assembled Nanoemulsion Tumor Vaccine In Vitro and In Vivo
Published on: September 28, 2022
1.8K
08:27Synthesis and Characterization of mRNA-Loaded PolyBeta Aminoesters Nanoparticles for Vaccination Purposes
Published on: August 13, 2021
4.5K
相关概念视频
Cancer Vaccines
368
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...
368
Tumor Immunotherapy
527
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.
527
Targeted 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
Combination Therapies and Personalized Medicine
4.9K
Combining two or more treatment methods increases the life span of cancer patients while reducing damage to vital organs or tissue from the overuse of a single treatment. Combination therapy also targets different cancer-inducing pathways, thus reducing the chances of developing resistance to treatment.
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
4.9K
