关于酸诱导免疫蛋白功能和构造变化的新证据:专注于细胞和分子方面
Shuqi Guo1, Falin He1, Shaoyang Hu1
1School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China.
The Science of the total environment
|December 16, 2023
概括
作为消毒副产品的酸 (IAA) 通过改变酶的结构和活性来损害免疫功能. 这导致小胞细胞活力下降和受影响生物体的细胞功能障碍.
科学领域:
- 环境化学环境化学
- 免疫毒理学 免疫毒理学
- 生物化学 生化学
背景情况:
- 原水中的化物可以在胺消毒过程中导致有害的化消毒副产品.
- 酸 (IAA) 是一种重要的副产品,其免疫毒性机制和生物分子作用尚不清楚.
研究的目的:
- 调查IAA的免疫毒性机制.
- 阐明IAA对生物分子,特别是酶的直接影响.
主要方法:
- 采用了细胞,生化和分子技术.
- 研究了IAA对大脑细胞活力和细胞内酶活性的影响.
- 分析了用光和颗粒大小减小测量对lyszyme的结构和构造变化.
- 利用分子对接来识别IAA的结合部位和与lyszyme的相互作用.
主要成果:
- IAA显著降低了小球体活力至70.8%,并降低了细胞内酶活性.
- 酶与IAA结合导致结构变化,包括延长和展开,以及光火.
- 分子对接表明IAA与lyszyme的活性部位的优先结合,由静电相互作用驱动.
结论:
- 结合IAA会诱导溶酶中的结构和形状变化.
- 这些变化会损害细胞内免疫蛋白的功能.
- 由此产生的细胞功能障碍凸显了IAA的免疫毒性潜力.
更多相关视频
相关概念视频
Immunocytochemistry and Immunohistochemistry
11.4K
Immunocytochemistry (ICC) and immunohistochemistry (IHC) are techniques that use antibodies to check for specific proteins or antigens in a sample. The technique was first published by Albert Coons in 1941 to detect the presence of pneumococcal antigen in tissue sections from mice infected with Pneumococcus. Immunocytochemistry helps localization of proteins or antigens in individual cells like blood cells, stem cells, etc., while immunohistochemistry does the same for tissue samples.
These...
These...
11.4K
B Cell Activation and Differentiation
1.7K
The adaptive immune response, a sophisticated defense mechanism, relies on the activation and differentiation of B lymphocytes, or B cells. These processes enable our bodies to mount a tailored response against specific pathogens such as bacteria, free virus particles, toxins, and parasites.
When naive B cells encounter a specific antigen that can bind to the B cell receptor (BCR) on their surface, they undergo sensitization to respond to the antigen's presence. Sensitization begins with...
When naive B cells encounter a specific antigen that can bind to the B cell receptor (BCR) on their surface, they undergo sensitization to respond to the antigen's presence. Sensitization begins with...
1.7K
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
Intrinsically Disordered Proteins
17.9K
Intrinsically disordered proteins are a group of proteins that do not fold into specific three-dimensional structures. Their structural flexibility allows them to complement ordered proteins to perform functions that are inaccessible to rigid structures. They are more common in eukaryotes than prokaryotes and may either be exclusively intrinsically disordered or hybrid proteins, consisting of a mix of ordered and disordered regions. The absence of a rigid structure in these proteins can be...
17.9K


