局部导向的中和抗体向SARS-CoV-2尖端蛋白结构部位
Xiaofeng Li1, Liudmila Kulakova2, Kezzia Jones1
1Abbratech Inc., 25 Business Park Drive, Suite C, Branford, CT 06405, USA.
New biotechnology
|December 21, 2023
概括
埃皮沃尔夫技术精确地准SARS-CoV-2受体结合域上的特定位置,以产生中和抗体. 这种方法成功地产生了针对原始和Omicron菌株有效的泛变异抗体.
科学领域:
- 免疫学 免疫学 免疫学
- 病毒学 病毒学
- 生物技术是生物技术.
背景情况:
- SARS-CoV-2受体结合域 (RBD) 是中和抗体的关键目标.
- 开发对不断演变的病毒变体有效的抗体仍然是一个挑战.
研究的目的:
- 评估Epivolve技术用于产生针对SARS-CoV-2 RBD的局部导向中和抗体.
- 为了证明Epivolve能够产生泛变异抗体的能力.
主要方法:
- 采用了Epivolve技术,利用触角化免疫原来向SARS-CoV-2 RBD上的13个暴露于溶剂的部位.
- 子被免疫了特定的免疫原体.
- 通过B细胞分泌的IgG和重组IgG测试来评估免疫反应.
主要成果:
- 对所有13个向部位成功诱导了部位定向免疫反应.
- 埃皮沃尔夫证明了产生针对Y505残留物 (SL13) 的抗体的能力,这在Omicron变种中至关重要.
- 泛变体中和抗体被产生,对抗主要的SARS-CoV-2菌株和Omicron变体.
结论:
- 埃皮沃尔夫是一种有效的技术,用于开发针对SARS-CoV-2的局部中和抗体.
- 这项技术显示出产生有效抗击当前和未来病毒变异的抗体的前景.
- 埃皮沃尔夫可以精确地准特定的氨基酸残留物,以开发抗体.
相关概念视频
Conjugated Proteins
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...
Coronavirus
Coronaviruses, including the severe acute respiratory syndrome coronavirus (SARS-CoV), are enveloped viruses characterized by their single-stranded, positive-sense RNA genome and helical nucleocapsid structure. The hallmark of these viruses is their club-shaped spike (S) glycoproteins that protrude from the viral envelope, facilitating attachment to host cells. Typically, coronaviruses infect the upper respiratory tract, often causing mild or asymptomatic disease. However, certain strains like...


