对免疫球蛋白G3的可开发性进行首次洞察:一种结合计算和实验方法
Georgina B Armstrong1,2, Alan Lewis3, Vidhi Shah4
1Drug Substance Development, GlaxoSmithKline, Gunnels Wood Road, Stevenage SG1 2NY, U.K.
ACS pharmacology & translational science
|August 15, 2024
概括
免疫球蛋白G3 (IgG3) 单克隆抗体显示出新疗法的潜力,但具有不充分描述的特性. 这项研究揭示了IgG3的存在.
科学领域:
- 生物制药的发展.
- 蛋白质工程是一种蛋白质工程.
- 免疫学 免疫学 免疫学
背景情况:
- 单克隆抗体 (mAbs) 是重要的治疗支架.
- 免疫球蛋白G3 (IgG3) mAbs具有治疗潜力,但缺乏表征.
- 高度mAb配方由于蛋白质与蛋白质相互作用而面临粘度,稳定性和可注射性方面的挑战.
研究的目的:
- 描述IgG3 mAbs.的分子描述和生物物理特性.
- 评估IgG3的可开发性和可制造性,用于高度配方.
- 了解IgG3物理化学性质的分子基础.
主要方法:
- 对抗IL-8的IgG1模型及其IgG3正义体的比较分析.
- 结合计算和实验框架的应用.
- 对影响mAb开发能力的分子描述物的测量.
主要成果:
- 与IgG1相比,IgG3 mAbs表现出较差的结构和体稳定性.
- 在IgG3配方中观察到溶液粘度升高.
- 确定了影响IgG3发育能力的关键分子描述因子.
结论:
- IgG3 mAbs具有独特的生物物理特征,需要对治疗开发进行仔细考虑.
- 这项研究为高度配方的IgG3可制造性提供了基础的见解.
- 控制表面潜力的序列工程提供了一种提高IgG3开发能力的策略.
相关概念视频
01:10Antibody Structure
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...
01:31Immunoglobulin-like Cell Adhesion Molecules
Immunoglobulin-like cell adhesion molecules or Ig-CAMs are a versatile group of cell surface glycoproteins belonging to the immunoglobulin protein superfamily. Ig-CAMs possess the characteristic immunoglobulin protein domains and other domains such as the fibronectin type III domain. The Ig domains are glycosylated to varying degrees in different Ig-CAMs.
Ig-CAMs exhibit either homophilic binding (to other Ig-CAMs) or heterophilic binding (to other ligands such as integrins). While most Ig-CAMs...
Ig-CAMs exhibit either homophilic binding (to other Ig-CAMs) or heterophilic binding (to other ligands such as integrins). While most Ig-CAMs...
01:25Antibody Structure and Classes
Antibodies, also known as immunoglobulins, are produced by B cells in response to foreign substances, such as bacteria and viruses. These proteins are critical for recognizing and neutralizing these substances, protecting the body from potential harm.
The basic structure of an antibody consists of four protein chains: two identical heavy chains and two identical light chains. These chains are held together by disulfide bonds and other non-covalent interactions, forming a Y-shaped structure.
The basic structure of an antibody consists of four protein chains: two identical heavy chains and two identical light chains. These chains are held together by disulfide bonds and other non-covalent interactions, forming a Y-shaped structure.