通过糖基工程制造通用疫苗和抗体
Larissa Krasnova1, Chi-Huey Wong2
1Department of Chemistry, The Scripps Research Institute, La Jolla, CA, USA.
Methods in molecular biology (Clifton, N.J.)
|April 23, 2025
概括
病毒的糖化工程可以暴露保存的表位,提高疫苗的疗效. 修改抗体Fc-glycans也可以提高免疫反应,以更广泛地保护对病毒变异的保护.
科学领域:
- 生物化学和分子生物学
- 免疫学 免疫学 免疫学
- 疫苗学 疫苗学 疫苗学
背景情况:
- 生物糖化调节生物分子的结构和功能,对细胞表面糖蛋白至关重要.
- 病毒利用宿主糖化形成一种保护性糖层,帮助感染和免疫逃避.
- 关键的病毒免疫原体,如流感和COVID病毒中的免疫原体,受到这种糖化保护.
研究的目的:
- 探索甘化工程对病毒结构的影响.
- 通过改变病毒糖基化来研究开发通用疫苗的潜力.
- 评估通过Fc-glycan工程来增强抗体介导杀死.
主要方法:
- 对生物糖化和病毒结构的现有文献的综述.
- 对删除或修改病毒表面甘氨酸的策略的分析.
- 对抗体Fc-甘氨酸工程技术的检查.
主要成果:
- 病毒糖层的删除暴露了保存的表位,引发了更广泛的抗体和T细胞反应.
- 低糖疫苗会诱导更多多样化的抗体,对保存的表位产生更高的抗体位数.
- 针对抗体的工程Fc-glycans可以改善抗体依赖细胞细胞毒性 (ADCC).
结论:
- 糖基化工程是开发广泛保护的通用疫苗的一个有前途的战略.
- 抗体Fc-glycan修饰可以增强治疗性抗体功能,包括免疫细胞介导的杀死.
- 向病毒糖化提供了一种新的方法来对抗病毒感染和病毒变异.
相关概念视频
Hybridoma Technology
13.8K
Hybridoma technology is used for the large-scale production of monoclonal antibodies. Monoclonal antibodies bind to only a single antigenic determinant or epitope. Such antibodies are used in research, diagnostics, and disease therapy. The hybridoma technology established in 1975 by Georges Köhler and Cesar Milstein was awarded the Nobel Prize in Medicine in 1984 for revolutionizing research and therapy.
Hybridoma Selection
Commonly used fusion techniques — electroporation,...
Hybridoma Selection
Commonly used fusion techniques — electroporation,...
13.8K
Cross-reactivity
30.9K
Overview
30.9K
Conjugated Proteins
18.1K
Simple proteins and protein complexes contain only amino acids. In contrast, many other proteins, called conjugated proteins, covalently bond with non-protein moieties.
Nucleoproteins are protein complexes that contain nucleic acids, categorized as deoxyribonucleoproteins (DNPs) or ribonucleoproteins (RNPs) respectively. The nucleosome is a typical example of a DNP where nuclear DNA is associated with histone proteins. The major antigen for the Covid-19 virus SARS-CoV is an RNP that is critical...
Nucleoproteins are protein complexes that contain nucleic acids, categorized as deoxyribonucleoproteins (DNPs) or ribonucleoproteins (RNPs) respectively. The nucleosome is a typical example of a DNP where nuclear DNA is associated with histone proteins. The major antigen for the Covid-19 virus SARS-CoV is an RNP that is critical...
18.1K
Vaccinations
43.0K
Overview
43.0K
The Central Dogma
19.3K
The central dogma explains the flow of genetic information from DNA nucleotides to the amino acid sequence of proteins.
RNA is the Missing Link Between DNA and Proteins
In the early 1900s, scientists discovered that DNA stores all the information needed for cellular functions and that proteins perform most of these functions. However, the mechanisms of converting genetic information into functional proteins remained unknown for many years. Initially, it was believed that a single gene is...
RNA is the Missing Link Between DNA and Proteins
In the early 1900s, scientists discovered that DNA stores all the information needed for cellular functions and that proteins perform most of these functions. However, the mechanisms of converting genetic information into functional proteins remained unknown for many years. Initially, it was believed that a single gene is...
19.3K
Active versus Passive Immunity
381
Immunity, along with the ability to limit pathogen growth to prevent significant body tissue damage, can be gained either by (1) actively developing an immune response within the individual after exposure to a pathogen or after getting vaccinated or (2) passively transferring immune components from an immune individual to one who is nonimmune. Both these forms of immunity can be found naturally and in medical practices.
Active Immunity
Active immunity refers to the resistance one develops...
Active Immunity
Active immunity refers to the resistance one develops...
381


