斯皮恩-Tec:一种基于T细胞的重组疫苗,它是安全的,具有免疫性,并且在与SARS-CoV-2变种有关的试验模型中显示出高疗效
Natália S Hojo-Souza1, Júlia T de Castro2, Graziella G Rivelli3
1Centro de Tecnologia de Vacinas, Universidade Federal de Minas Gerais, Brazil; Instituto René Rachou, Fundação Oswaldo Cruz-Minas, Brazil.
Vaccine
|October 5, 2024
概括
一个新的Spin-Tec疫苗候选人显示了增强对SARS-CoV-2变种免疫力的承诺. 这种嵌合式重组蛋白疫苗增强了中和抗体,并在动物模型中提供了对Delta和Omicron变异的保护.
科学领域:
- 免疫学 免疫学 免疫学
- 疫苗学 疫苗学 疫苗学
- 病毒学 病毒学
背景情况:
- 由于SARS-CoV-2变种和免疫力减弱,COVID-19大流行正在成为流行病.
- 补充疫苗对于加强保护和控制疾病至关重要.
- 需要新型疫苗平台来应对新出现的令人担忧的变种.
研究的目的:
- 评估Spin-Tec疫苗的免疫性,疗效和安全性.
- 评估Spin-Tec作为对抗SARS-CoV-2变种的助推剂的潜力.
- 在动物模型中研究Spin-Tec的免疫反应.
主要方法:
- 用Spin-Tec.对K18-hACE-2转基因小鼠和仓鼠进行免疫接种.
- 使用SpiN-Tec和紧急使用COVID-19疫苗 (ChAdOx1) 的异质原始/提升协议.
- 评估抗体标位,细胞免疫反应,中和抗体 (nAb),病毒载量和肺病理.
- 在老鼠中进行毒性和安全性测试.
主要成果:
- SpiN-Tec诱导高抗体标位和细胞免疫反应对Spin,RBD和N蛋白质.
- 异质原始/增强与SpiN-Tec增强循环中和抗体 (nAb).
- 通过减少病毒载量和肺病理学来证明对武汉,三角洲和Omicron变种的保护.
- 在毒性和安全性测试中,Spin-Tec疫苗被发现是安全的.
结论:
- 斯皮恩-特克疫苗具有免疫性,对SARS-CoV-2变种有效.
- 该疫苗在临床前研究中显示出安全性.
- 结果支持批准Spin-Tec I/II期临床试验.
更多相关视频
08:52Generation of Multivirus-specific T Cells to Prevent/treat Viral Infections after Allogeneic Hematopoietic Stem Cell Transplant
Published on: May 27, 2011
17.2K
10:13An Efficient In Vitro Transposition Method by a Transcriptionally Regulated Sleeping Beauty System Packaged into an Integration Defective Lentiviral Vector
Published on: January 12, 2018
8.9K
相关概念视频
Tumor Immunotherapy
Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.
Cancer Vaccines
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...
Vaccines
Vaccines are among the most effective tools in preventive medicine, designed to prepare the immune system to recognize and combat infectious agents. By introducing antigens—substances that the immune system identifies as foreign—vaccines stimulate an adaptive immune response that leads to immunological memory. This immunological memory enables the body to mount a faster and more effective response upon future exposures to the actual pathogen.Vaccines can be categorized based on the type of...
