多价值的下一代流感病毒疫苗可以预防季节性和流行前病毒
Naoko Uno1,2, Ted M Ross3,4,5,6
1Center for Vaccines and Immunology, University of Georgia, Athens, GA, USA.
Scientific reports
|January 16, 2024
概括
一种新的通用流感疫苗候选人,使用计算优化广泛反应抗原 (COBRA) 方法,显示出对各种季节性和流行前流感菌株的长期保护的承诺.
科学领域:
- 病毒学 病毒学
- 免疫学 免疫学 免疫学
- 疫苗开发 疫苗开发
背景情况:
- 流感病毒不断发生突变,需要每年更新疫苗.
- 现有的疫苗对多种或未来的菌株提供有限的交叉保护.
- 存在普遍流感疫苗的需求,提供广泛的,持久的免疫力.
研究的目的:
- 使用计算优化广泛反应抗原 (COBRA) 方法设计和评估下一代流感疫苗.
- 评估疫苗能够引起针对多种流感亚型的广泛保护性免疫反应的能力.
- 为了确定疫苗是否能对季节性流感和流行前流感病毒菌株提供保护.
主要方法:
- 新的血凝素 (HA) 和神经氨基酶 (NA) 序列是使用COBRA方法设计的.
- 多层共识序列对齐用于多种流感亚型.
- 小鼠接种了HA和NA蛋白质 (H1-H3,H5,H7,N1-N2) 的多价值混合物.
主要成果:
- 科布拉疫苗引发了识别广泛流感菌株的抗体.
- 接种疫苗的小鼠证明了对多个亚型的流感病毒的保护.
- 多价值配方诱导了广泛的保护性免疫反应.
结论:
- 开发的多价值COBRA疫苗是通用流感疫苗的有希望的候选人.
- 这种方法有可能产生长期的交叉保护性免疫力,对抗季节性流感和流行前流感.
- 进一步开发可能会导致在多个季节有效的通用流感疫苗.
相关概念视频
Vaccinations
44.5K
Overview
44.5K
Cancer Vaccines
368
Cancer treatment vaccines are a rapidly evolving field that offers a promising approach to immunotherapy. Unlike traditional vaccines that prevent diseases, cancer treatment vaccines are designed to treat existing cancers by stimulating the immune system to recognize and attack cancer cells.
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...
368
Cross-reactivity
31.1K
Overview
31.1K
Viral Recombination
23.4K
Cells are sometimes infected by more than one virus at once. When two viruses disassemble to expose their genomes for replication in the same cell, similar regions of their genomes can pair together and exchange sequences in a process called recombination. Alternatively, viruses with segmented genomes can swap segments in a process called reassortment.
23.4K
Leaky Scanning
5.1K
During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA. Marilyn Kozak discovered that the sequence RCCAUGG (where R...
5.1K
Immunological Memory
616
Immunological memory, a pivotal pillar of the adaptive immune system, is responsible for the body's ability to remember and respond more swiftly and effectively to previously encountered pathogens. This remarkable feature is what makes vaccines so effective in preventing diseases.
What is Immunological Memory?
Immunological memory is an integral function of the immune system that allows it to recognize and react more rapidly and effectively to pathogens previously encountered. This feature...
What is Immunological Memory?
Immunological memory is an integral function of the immune system that allows it to recognize and react more rapidly and effectively to pathogens previously encountered. This feature...
616


