相关实验视频

Updated: Jul 6, 2025

Analysis of Simian Immunodeficiency Virus-specific CD8+ T-cells in Rhesus Macaques by Peptide-MHC-I Tetramer Staining

Analysis of Simian Immunodeficiency Virus-specific CD8+ T-cells in Rhesus Macaques by Peptide-MHC-I Tetramer Staining

Published on: December 23, 2016

在中诱导CD4模仿HIV-1广泛中和抗体前体

Kevin O Saunders¹, James Counts², Bhishem Thakur²

¹Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC 27710, USA; Department of Surgery, Duke University School of Medicine, Durham, NC 27710, USA; Department of Immunology, Duke University School of Medicine, Durham, NC 27710, USA; Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC 27710, USA.

|January 5, 2024

概括

这项研究表明,一种新的HIV-1疫苗免疫原可以产生针对CD4结合部位的前体广泛中和抗体 (bnAbs). 这是开发有效的HIV-1疫苗的关键一步.

科学领域:

免疫学
病毒学
疫苗学

背景情况:

艾滋病毒-1包裹上的CD4结合部位 (CD4bs) 是广泛中和抗体 (bnAbs) 的关键目标.
目前的HIV-1疫苗难以引起CD4bs bnAbs,这是由于糖屏蔽和B细胞限制等因素.

研究的目的:

研究一种针对CD4bs的免疫原是否能在非人类灵长类动物中引起保护性bnAbs.
描述产生的抗体的结构和遗传特征.

主要方法:

用针对CD4bs的免疫原体对进行免疫.
对抗体-Env复合物的结构分析.
抗体变量和连接基因段的遗传序列.

主要成果:

免疫基因成功地在中引起了bnAb前体的中和.
引起的bnAb前体与人类CD4模仿的bnAbs具有共同的结构和遗传特征.
抗体表现出与HIV-1 Env具有特征的结合角度和重链相互作用.

结论:

这项研究成功启动了灵长类动物中CD4bs bnAb前体的开发.
这代表了开发针对CD4bs的有效HIV-1疫苗的重大进展.

关键词:

CD4结合部位 CD4模拟性抗体电磁多克隆表位映射在EMPEM 艾滋病毒疫苗广泛中和抗体化电磁场冷电子显微镜类

更多相关视频

Multicolor Flow Cytometry Analyses of Cellular Immune Response in Rhesus Macaques

Multicolor Flow Cytometry Analyses of Cellular Immune Response in Rhesus Macaques

Published on: April 22, 2010

Single-cell Quantitation of mRNA and Surface Protein Expression in Simian Immunodeficiency Virus-infected CD4+ T Cells Isolated from Rhesus macaques

Single-cell Quantitation of mRNA and Surface Protein Expression in Simian Immunodeficiency Virus-infected CD4+ T Cells Isolated from Rhesus macaques

Published on: September 25, 2018

相关概念视频

Immune Response Against Viral Pathogens

Immune Response Against Viral Pathogens

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...