相关实验视频
Updated: Jul 12, 2025

10:42
Flow Cytometric Analysis of Particle-bound Bet v 1 Allergen in PM10
Published on: November 19, 2016
7.6K
重组PreS融合蛋白疫苗用于树花粉和果过敏
Musa Khaitov1,2, Igor Shilovskiy1, Rudolf Valenta1,3,4,5
1NRC Institute of Immunology, FMBA of Russia, Moscow, Russian Federation.
Allergy
|October 19, 2023
概括
一种新的低过敏性疫苗,AB-PreS,有效地阻止IgE与树花粉和果过敏原结合. 这种重组蛋白质疫苗与现有的花粉食物过敏综合征治疗方法相比,显示出更高的疗效.
科学领域:
- 过敏原免疫疗法免疫疗法
- 疫苗的研发工作正在进行中.
- 免疫学 免疫学 免疫学
背景情况:
- 花粉食物过敏综合征是由IgE对白花粉过敏原Bet v 1和相关的PR10食物过敏原的交叉敏感化引起的.
- 贝特v1和马尔d1 (果过敏原) 是参与这种交叉反应的关键过敏原.
研究的目的:
- 开发和评估一种新的低过敏性重组蛋白疫苗,AB-PreS,用于花粉食物过敏综合征.
- 为了比较AB-PreS的疗效与现有的基于树花粉过敏原提取物的疫苗.
主要方法:
- 一种重组蛋白,AB-PreS,是使用来自Bet v 1和Mal d 1的非过敏性,与HBV表面蛋白PreS域融合而设计的.
- AB-PreS被表达为大肠杆菌和净化.
- 用患者的基和PBMCs来评估过敏和炎症潜力.
- 在子免疫接种后,通过ELISA评估了阻断IgE结合的抗体有效性.
主要成果:
- AB-PreS显示出低过敏性质,IgE结合和基细胞激活减少.
- 它诱导了患者PBMCs的较低的T细胞激活和炎症性细胞因子产生.
- 来自AB-PreS免疫接种的抗体比传统疫苗的抗体更有效地抑制了IgE与Bet v1和Mal d 1的结合.
- 用AB-PreS接种疫苗还诱导了具有保护性的HBV特异性抗体.
结论:
- 再组合的AB-PreS疫苗具有低过敏性,并且与当前的过敏原提取物疫苗相比,对Bet v1和Mal d 1的阻断抗体具有更强的诱导作用.
- AB-PreS代表了对花粉食物过敏综合征的有前途的新疗法策略.
相关概念视频
Cross-reactivity
31.2K
Overview
31.2K
Allergic Reactions
27.6K
Overview
27.6K
Allergic Drug Reactions
852
Allergic reactions related to drugs are hypersensitivity responses driven by the immune system and bear no connection to the drug's therapeutic action. While drugs in isolation do not trigger an immune response, they can interact with endogenous proteins to form antigens. These antigens stimulate lymphocytes to produce antibodies. IgE-type antibodies attach themselves to mast cells. Upon subsequent exposure to the same stimulus, the antigen-antibody interaction is initiated, unleashing...
852
Vaccinations
44.6K
Overview
44.6K
Antibody Structure
60.2K
Overview
Antibodies, also known as immunoglobulins (Ig), are essential players of the adaptive immune system. These antigen-binding proteins are produced by B cells and make up 20 percent of the total blood plasma by weight. In mammals, antibodies fall into five different classes, which each elicits a different biological response upon antigen binding.
The Y-Shaped Structure of Antibodies Consists of Four Polypeptide Chains
Antibodies consist of four polypeptide chains: two identical heavy...
Antibodies, also known as immunoglobulins (Ig), are essential players of the adaptive immune system. These antigen-binding proteins are produced by B cells and make up 20 percent of the total blood plasma by weight. In mammals, antibodies fall into five different classes, which each elicits a different biological response upon antigen binding.
The Y-Shaped Structure of Antibodies Consists of Four Polypeptide Chains
Antibodies consist of four polypeptide chains: two identical heavy...
60.2K

