相关实验视频
Updated: Sep 16, 2025

10:17
Rapid Determination of Antibody-Antigen Affinity by Mass Photometry
Published on: February 8, 2021
7.7K
了解抗体-标抗原相互作用和使用数学建模的狂热效应
Luke Heirene1, Helen Byrne1, Armin Sepp2
1Mathematical Institute, University of Oxford, Oxford, UK.
Journal of the Royal Society, Interface
|July 8, 2025
概括
数学建模揭示了抗体-抗原相互作用如何影响单克隆抗体 (mAbs) 在癌症免疫治疗中的强度和疗效. 了解这些动态,包括狂热效应,可以提高mAb疗法的临床前开发.
科学领域:
- 免疫学 免疫学 免疫学
- 生物物理学的生物物理.
- 计算生物学 计算生物学
背景情况:
- 免疫疗法利用免疫系统对抗癌症等疾病.
- 单克隆抗体 (mAbs) 是具有抗瘤作用的关键免疫疗法.
- mAbs的成功取决于它们与抗原的相互作用,包括贪效应.
研究的目的:
- 从理论上分析抗体-抗原相互作用对mAb激烈度,功效和疗效的影响.
- 开发一个数学模型来研究这些相互作用.
- 为优化mAb疗法开发提供见解.
主要方法:
- 对与膜抗原结合的双价单特异IgG抗体的普通微分方程模型的分析.
- 对抗体-抗原结合动力学和欲效应的研究.
- 全球参数灵敏度分析以确定关键影响因素.
主要成果:
- 抗体对抗原数的比率显著影响mAb强度和抗原占用等疗效指标.
- 抗原占用率和结合抗体比率对结合率敏感,主要是在高抗体度下.
- 确定了特定的参数范围,预计狂热效应会很大.
结论:
- 数学建模为控制mAb性能的抗体-抗原相互作用提供了关键的见解.
- 了解这些相互作用可以指导临床前开发,以提高mAb的效能,有效性和激活度.
- 该研究强调了抗体度在调节这些影响中的重要性.
相关概念视频
Affinity and Avidity
36.7K
Overview
36.7K
Antibody Actions
1.4K
Antibodies, or immunoglobulins, are critical players in the immune system's arsenal against invading pathogens. Produced by B cells and plasma cells, their primary role is to detect and bind to specific antigens, molecules found on the surface of pathogens like bacteria or viruses. Beyond antigen recognition, antibodies perform several vital functions that contribute to immune defense.
Neutralization
Antibodies can bind to pathogens, preventing them from infecting host cells. This process...
Neutralization
Antibodies can bind to pathogens, preventing them from infecting host cells. This process...
1.4K
Physiological Pharmacokinetic Models: Assumption with Protein Binding
94
Physiological models with protein binding in pharmacokinetics offer a sophisticated approach to understanding drug disposition. These models consider drug-protein interactions, enabling them to effectively predict drug concentrations in different organs and tissues. This precision aids in accurate drug dosing, providing a significant advantage over conventional models. A key process within these models is equilibration, which ensures that drug concentrations achieve a steady state within the...
94
The Two-State Receptor Model
2.4K
The two-state receptor model explains a drug's interaction with receptors, such as G protein-coupled receptors and ligand-gated ion channels, to induce or inhibit a biological response. When no natural ligands are present, a receptor exists in an equilibrium of inactive (Ri) and active (Ra) conformations. The inactive form does not produce a response, while the active form generates a basal effect known as constitutive activity.
The binding affinity of a drug determines its interaction with...
The binding affinity of a drug determines its interaction with...
2.4K
B Cell Activation and Differentiation
6.5K
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...
6.5K
Antibody Structure
61.4K
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...
61.4K

