植物和关节动物IgE结合的类似帕帕因的氨酸蛋白酶:对过敏性有多种贡献
Ivana Giangrieco1, Maria Antonietta Ciardiello2, Maurizio Tamburrini1
1Institute of Biosciences and BioResources (IBBR), National Research Council of Italy (CNR), 80131 Naples, Italy.
Foods (Basel, Switzerland)
|March 13, 2024
概括
类似帕帕因的囊蛋白酶 (PLCPs) 是具有多种应用的必不可少的酶,但可以引发过敏. 它们的活性增加了组织的透性,促进过敏原的进入,导致呼吸道或职业过敏.
科学领域:
- 生物化学 生物化学
- 免疫学 免疫学 免疫学
- 生物技术是生物技术.
背景情况:
- 类似帕帕因的氨酸蛋白酶 (PLCPs) 是一种被保存的酶家族,在所有生命领域都能找到.
- 这些蛋白酶与帕帕因具有关键的结构和酶特征,并表现出广泛的基质特异性.
- PLCP是众多生物过程中不可或缺的组成部分,并具有重要的生物技术应用.
研究的目的:
- 为提供帕帕因类囊蛋白酶的一般性质的概述.
- 突出PLCPs在人类过敏反应中的作用.
- 区分PLCP诱导过敏的暴露来源和途径.
主要方法:
- 关于类似帕帕因的氨酸蛋白酶研究的文献综述.
- 报告的生物功能和生物技术应用的分析.
- 检查了PLCP介导过敏背后的机制.
主要成果:
- PLCPs可以增加组织透性,增强过敏原通过皮肤,肠道和呼吸道屏障的透.
- 经常观察到对吸入PLCP的过敏,例如虫过敏原Der p1和Der f1.
- 植物性PLCP通常在胃肠道中被消化,很少引起食物过敏,但可能导致职业病.
结论:
- 类似帕帕因的氨酸蛋白酶具有双重作用:有价值的生物技术工具和重要的过敏原.
- 暴露途径和蛋白质来源 (例如,吸入与摄入) 极大地影响了对PLCPs过敏反应的风险和类型.
- 了解PLCP的特性对于管理过敏和优化其生物技术用途至关重要.
相关概念视频
Allergic Reactions
27.4K
Overview
27.4K
Cross-reactivity
31.1K
Overview
31.1K
Antibody Structure
60.1K
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...
60.1K
Antigens Involved in Adaptive Immunity
491
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...
491
Antigen Processing Pathways
1.0K
MHC molecules are key players in the immune response, enabling T cells to recognize and respond to specific antigens. They are present on the surface of all nucleated cells in the body and are instrumental in presenting antigens to T cells and activating them. T cells recognize the MHC-antigen complex and initiate an immune response. MHC class I and MHC class II are two main types of MHC molecules, each associated with a distinct antigen processing pathway.
MHC Class I: Presenting Endogenous...
MHC Class I: Presenting Endogenous...
1.0K
Defenses Against Pathogens and Herbivores
23.7K
Plants present a rich source of nutrients for many organisms, making it a target for herbivores and infectious agents. Plants, though lacking a proper immune system, have developed an array of constitutive and inducible defenses to fend off these attacks.
23.7K


