相关实验视频

Updated: May 3, 2026

Use of Interferon-γ Enzyme-linked Immunospot Assay to Characterize Novel T-cell Epitopes of Human Papillomavirus

Use of Interferon-γ Enzyme-linked Immunospot Assay to Characterize Novel T-cell Epitopes of Human Papillomavirus

Published on: March 8, 2012

在体外CD8T细胞原始化试验使型选择能够用于C型肝炎病毒疫苗

Georgia Koutsoumpli¹, Neringa Stasiukonyte¹, Baukje Nynke Hoogeboom¹

¹Department of Medical Microbiology and Infection Prevention, University Medical Center Groningen, University of Groningen, PO Box 30 001, HPC EB88, 9700RB Groningen, the Netherlands.

|July 4, 2024

概括

我们开发了一种体外方法来识别用于疫苗设计的功能性CD8T细胞表位. 这种测试有效地识别出来自型肝炎病毒 (HCV) 的免疫原性表位,并且可以应用于其他病毒感染和癌症.

科学领域:

免疫学免疫学免疫学
疫苗学疫苗学疫苗学
分子生物学分子生物学

背景情况:

准确识别T细胞表位对合理的疫苗设计至关重要.
预测CD8+T细胞表位的现有算法往往与实验确定表位存在差异.

研究的目的:

开发和验证一种体外CD8T细胞原始化协议,用于识别功能表达的HLA类I表位.
为了使免疫原性表位的选择能够用于治疗性疫苗开发,用于对抗持久性病毒感染和瘤抗原.

主要方法:

通过使用外周血液单核细胞 (PBMC) 和感染型肝炎病毒 (HCV) 的表达NS3蛋白的肝细胞建立了体外试验方案.
在10天的共同培养期内,利用增长因子和细胞因子的尾酒对天真的CD8T细胞进行了原始化.
通过IFN-γ ELISpot分析评估T细胞反应,在用长合成 (SLP) 进行复兴后,覆盖NS3蛋白序列.

主要成果:

在试验室中成功启动了原始的CD8T细胞,确定了11个含有12个HLA-A*02:01受限制表位的SLP.
发现了对3个的反应,标准算法没有预测它们是免疫原性的,这突显了该协议发现新型表位的能力.
证实,在用短进行再刺激时,CD8+ T细胞调解了反应.

结论:

开发的 in vitro 方法有效地识别出来自交叉呈现的抗原的 HLA I 类表位.
该协议允许选择高免疫性和低免疫性表位,这对于设计定制治疗疫苗至关重要.
该试验为推进针对持久性病毒感染和癌症的疫苗策略提供了宝贵的工具.

关键词:

CD8(+) T细胞原始化试验试验癌症疫苗疫苗癌症疫苗皮质体的识别皮质体的识别在C型肝炎病毒的感染中,

更多相关视频

Use of Single Chain MHC Technology to Investigate Co-agonism in Human CD8+ T Cell Activation

Use of Single Chain MHC Technology to Investigate Co-agonism in Human CD8+ T Cell Activation

Published on: February 28, 2019

Analysis of HBV-Specific CD4 T-cell Responses and Identification of HLA-DR-Restricted CD4 T-Cell Epitopes Based on a Peptide Matrix

Analysis of HBV-Specific CD4 T-cell Responses and Identification of HLA-DR-Restricted CD4 T-Cell Epitopes Based on a Peptide Matrix

Published on: October 20, 2021

相关概念视频

Cytotoxic T Cells-mediated Immune Response

Cytotoxic T Cells-mediated Immune Response

Cytotoxic T cells are a vital component of the immune system. They have the remarkable ability to identify and target antigens on infected or abnormal cells. These antigens often originate from intracellular pathogens such as viruses or abnormal proteins cancer cells produce.
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...