基于超分支的多化层次组合作为疫苗载体,用于级联抗原输送和增强免疫反应
Xiaolan Ye1, Jie Jiang1, Mingming Deng1
1Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Engineering Technology Research Center of Drug Carrier of Guangdong, Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China.
Colloids and surfaces. B, Biointerfaces
|February 6, 2026
概括
这项研究引入了一种用于癌症免疫治疗的新型多阶段疫苗载体. "级联方法"增强了抗原递送和免疫激活,证明了对瘤的显著预防效果.
科学领域:
- 生物材料科学 生物材料科学
- 免疫学 免疫学 免疫学
- 纳米技术 纳米技术
背景情况:
- 癌症免疫疗法依赖于多步骤的免疫反应,但由于不同阶段的不同要求,传递系统面临挑战.
- 克服有效的抗原递送和免疫激活的生物障碍仍然是瘤疫苗开发中的关键障碍.
研究的目的:
- 为提高瘤疫苗疗效,开发一种基于高分支聚的多阶段输送载体.
- 在癌症免疫疗法中研究一种"级联方法"来增强抗原递送和免疫激活.
主要方法:
- 在以聚乙烯胺为基础的高分支聚合物 (HPAP) 中封装卵胺 (OVA) 抗原.
- 将HPAP/OVA与一个电荷逆转聚合物 (mPEG-PEI-DMMA,PPD) 组装在一起,形成PPD@HPAP/OVA.
- 评估纳米粒子特性,包括淋巴结排水,pH响应性溶酶体逃逸和谷氨触发的抗原释放.
主要成果:
- 携带PPD@HPAP/OVA的携带者证明了有效的淋巴结排水和溶酶体逃逸.
- 谷氨触发的载体降解促进了抗原的快速释放,并增强了交叉呈现.
- 该疫苗配方显著增强了细胞和幽默免疫力,并在皮下瘤模型中显示出显著的预防疗效.
结论:
- 开发的多阶段载体有效地克服了生物障碍,改善了抗原递送和免疫反应.
- "级联方法"为设计先进的预防性瘤疫苗提供了一个有希望的策略.
- 这项工作为开发有效的癌症免疫疗法提供了新的范式.
更多相关视频
相关概念视频
Humoral Immune Responses
84.0K
Overview
84.0K
Vaccinations
51.8K
Overview
51.8K
Electron Carriers
91.9K
Electron carriers can be thought of as electron shuttles. These compounds can easily accept electrons (i.e., be reduced) or lose them (i.e., be oxidized). They play an essential role in energy production because cellular respiration is contingent on the flow of electrons.
Over the many stages of cellular respiration, glucose breaks down into carbon dioxide and water. Electron carriers pick up electrons lost by glucose in these reactions, temporarily storing and releasing them into the electron...
Over the many stages of cellular respiration, glucose breaks down into carbon dioxide and water. Electron carriers pick up electrons lost by glucose in these reactions, temporarily storing and releasing them into the electron...
91.9K
Antigens Involved in Adaptive Immunity
1.6K
An antigen is any substance the immune system identifies as foreign and potentially harmful to the body, prompting an immune response. Antigens have two functional properties: immunogenicity and reactivity. Immunogenicity is the ability of an antigen to stimulate a specific immune response. At the same time, reactivity describes the antigen's ability to react with the cells and antibodies produced in response to it.
Complete Antigens
Complete antigens possess both immunogenicity and...
Complete Antigens
Complete antigens possess both immunogenicity and...
1.6K
Intracellular Signaling Cascades
53.7K
Once a ligand binds to a receptor, the signal is transmitted through the membrane and into the cytoplasm. The continuation of a signal in this manner is called signal transduction. Signal transduction only occurs with cell-surface receptors, which cannot interact with most components of the cell, such as DNA. Only internal receptors can interact directly with DNA in the nucleus to initiate protein synthesis. When a ligand binds to its receptor, conformational changes occur that affect the...
53.7K
Cell-mediated Immune Responses
84.2K
Overview
84.2K


