用类似病毒的颗粒向树突细胞:朝着更安全,更具免疫性的疫苗
Jonny Jonny1,2,3, Chairul A Nidom1,4,5,6, Terawan A Putranto2
1Doctoral Program of Medical Science, Faculty of Medicine, Airlangga University, Surabaya 60132, Indonesia.
Vaccines
|November 26, 2025
概括
这项研究发现,四值登革热病毒样颗粒 (VLP) 疫苗在急性或慢性毒性测试中没有在小鼠身上显示任何不良影响. 这些发现支持对这种有前途的登革热疫苗候选人的进一步临床评估.
科学领域:
- 病毒学 病毒学
- 免疫学 免疫学 免疫学
- 毒理学 毒理学 毒理学
背景情况:
- 登革热病毒是一个主要的全球健康威胁,在100多个国家流行,目前的管理仅限于支持性护理.
- 现有的登革热疫苗,如CYD-TDV和Qdenga有局限性,包括对血清阴性个体的安全性问题和可变的疗效.
- 病毒样颗粒 (VLP) 正在成为安全的,复制无能力的疫苗开发平台.
研究的目的:
- 在临床前小鼠模型中评估登革热基于VLP的抗原的毒性概况.
- 在急性和慢性暴露场景中评估四价登革热VLP疫苗的安全性.
主要方法:
- 80只BALB/c小鼠被分为急性和慢性小组,每个小组都有治疗和控制子组.
- 在28天的时间内,小鼠在第1天 (急性) 或第1天和第14天 (慢性) 接受了肌内VLP注射.
- 监测包括体温,体重,死亡率,临床症状和器官的组织病理学检查,以及血液学和生物化学分析.
主要成果:
- 在VLP治疗组和对照组之间,没有观察到死亡率,体温或体重的显著差异.
- 在器官的组织病理学检查中,没有发现不良的临床症状或病理变化.
- 血液学和血液生物化学参数保持在正常范围内,表明没有毒性.
结论:
- 在急性和慢性毒性评估中,四价登革热VLP疫苗在BALB/c小鼠中显示出良好的安全性.
- VLP疫苗没有引起不良反应,支持其向人类临床试验的进展.
- 由VLP平台激活的树突细胞为其作为登革热疫苗的进一步开发提供了额外的理由.
更多相关视频
05:15Detection of Neutralization-sensitive Epitopes in Antigens Displayed on Virus-Like Particle VLP-Based Vaccines Using a Capture Assay
Published on: February 10, 2022
4.1K
10:35Chemical Conjugation of a Purified DEC-205-Directed Antibody with Full-Length Protein for Targeting Mouse Dendritic Cells In Vitro and In Vivo
Published on: February 5, 2021
3.9K
相关概念视频
01:51Vaccinations
51.2K
Overview
51.2K
01:30Cancer Vaccines
936
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...
936
01:29Immune Response Against Viral Pathogens
1.7K
The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
1.7K