相关实验视频

Updated: May 3, 2026

A High Throughput MHC II Binding Assay for Quantitative Analysis of Peptide Epitopes

A High Throughput MHC II Binding Assay for Quantitative Analysis of Peptide Epitopes

Published on: March 25, 2014

在中,针对Mycobacterium avium复杂物种的基于多个表位的疫苗设计

Leah Kashiri¹, Wonderful T Choga^2,3,4, Tinashe Musasa¹

¹Medical Microbiology Unit, Department of Laboratory Diagnostic and Investigative Sciences, Faculty of Medicine and Health Sciences, University of Zimbabwe, Harare, Zimbabwe.

Frontiers in immunology

|June 20, 2025

概括

一种新型多表位疫苗 (MEV) 候选人被设计使用in silico方法,以准Mycobacterium avium复合体 (MAC) 物种中保存的抗原. 这种MEV显示出强大的免疫性潜力和广泛适用于开发针对MAC感染的跨物种疫苗.

科学领域:

免疫学和疫苗学免疫学和疫苗学
基因组学和生物信息学
微生物学微生物学

背景情况:

飞菌复合体 (MAC) 包含机会性病原体,引起重大疾病,特别是在免疫功能低下的人群中.
目前的疫苗缺乏对MAC的跨物种保护,这凸显了对新型疫苗策略的需求.
在 silico 疫苗设计提供了一种有效的方法来识别和组装用于疫苗开发的免疫原性表位.

研究的目的:

设计一个候选的多表位疫苗 (MEV),针对多个MAC物种的保存抗原.
为了确定和评估潜在的广谱疫苗应用的免疫原性表位.

主要方法:

对Mycobacterium colombiense,M. avium和M. intracellulare进行基因组分析.
检查保存免疫主导蛋白 (85A,85B,85C) 的高亲和度T辅助淋巴细胞 (THL) 表位.
对抗原性,免疫原性,稳定性和人口覆盖率的表观体的in silico评估,随后进行免疫模拟.

主要成果:

确定了82个THL表位,与13个MHCII类等位基因结合,确保了广泛的人口覆盖.
整合了11个共识的表位,其中大多数来自85B蛋白质.
在模拟预测了强大的幽默和细胞免疫反应,包括高的IgG标位和细胞因子分泌 (IFN-γ,IL-2).

结论:

这种合理设计的MEV候选体显示出强大的免疫性潜力和跨物种适用性.
这种MEV值得进一步实验验证,作为一种针对MAC感染的宽谱疫苗.

关键词:

抗原85 抗原85 的使用方法剧情片 (Epitopes) 是一种表情片.菌复合体 (Mycobacterium avium) 是一种复杂的细菌.Th1辅助T细胞-T细胞疫苗疫苗疫苗疫苗免疫占主导地位.基转移酶 (mycolyltransferase) 是一种基转移酶.乱伦的表象乱伦的表象

更多相关视频

Expression of Exogenous Antigens in the Mycobacterium bovis BCG Vaccine via Non-genetic Surface Decoration with the Avidin-biotin System

Expression of Exogenous Antigens in the Mycobacterium bovis BCG Vaccine via Non-genetic Surface Decoration with the Avidin-biotin System

Published on: January 31, 2018

Author Spotlight: Adjuvant Activity of Mycobacterium paratuberculosis in Enhancing the Immunogenicity of Autoantigens During Experimental Autoimmune Encephalomyelitis

Author Spotlight: Adjuvant Activity of Mycobacterium paratuberculosis in Enhancing the Immunogenicity of Autoantigens During Experimental Autoimmune Encephalomyelitis

Published on: May 12, 2023

相关概念视频

Microorganisms in Medicine and Therapeutics

Microorganisms in Medicine and Therapeutics

Microorganisms play a fundamental role in vaccine development, gene therapy, and therapeutic production. Their biological properties are harnessed to advance medicine and public health. Beyond immunization, microorganisms contribute to gut health, antibiotic synthesis, and genetic disease treatment.Live Attenuated and Inactivated VaccinesLive attenuated vaccines, such as the measles, mumps, and rubella (MMR) vaccine, utilize weakened forms of pathogens to closely resemble natural infections.

Vaccines

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...