相关实验视频

Updated: Feb 14, 2026

Automated Analysis of Intracellular Phenotypes of Salmonella Using ImageJ

Automated Analysis of Intracellular Phenotypes of Salmonella Using ImageJ

Published on: August 9, 2022

一种广泛的蛋白质组分析,以设计一种有效的以表位素为基础的抗沙门氏菌疫苗:一种免疫信息学研究

Mahsa Beiranvand¹, Nemat Shams¹, Amin Jaydari¹

¹Faculty of Microbiology and Food Health, Department of Veterinary Medicine, Lorestan University, Iran.

Human immunology

|February 12, 2026

概括

一个新的伤寒疫苗候选人是使用沙门氏菌Typhi蛋白质设计的. 这种复合子单元疫苗表现出强烈的免疫性和稳定地与TLR4/MD2受体结合,显示出有效预防伤寒的潜力.

科学领域:

疫苗学疫苗学疫苗学
免疫学免疫学免疫学
蛋白质工程是指蛋白质工程.

背景情况:

由于沙门氏菌 (Salmonella enterica serovar Typhi) 引起的伤寒热,对全球健康构成重大威胁.
开发有效的疫苗对于控制伤寒发烧至关重要.
现有的疫苗有局限性,需要新的方法.

研究的目的:

设计一种针对伤寒的复合子单位疫苗.
在疫苗开发中利用来自沙门氏菌Typhi蛋白质的免疫性蛋白质.
评估设计的候选疫苗的免疫和结合性质.

主要方法:

从Salmonella Typhi中选择的高度抗原蛋白用于表位预测 (T细胞,B细胞,IFN-γ).
构建了一个重组蛋白质,包含预测的表位,链接器和辅助剂.
评估了物理化学性质,结构,抗原性和免疫刺激潜力.
利用分子对接和动力学模拟来研究与TLR4/MD2受体的结合.

主要成果:

从选定的蛋白质中设计了一个655氨基酸结构.
在分析显示了有利的物理化学性质和结构组成.
免疫模拟表明增强的幽默和细胞免疫反应.
候选疫苗表现出稳定的结合TLR4/MD2受体复合体,具有高亲和力 (-1019.1 kcal/mol).

结论:

设计的伤寒疫苗候选人具有显著的免疫原特性.
疫苗引起强大的幽默和细胞免疫反应.
证实了对TLR4/MD2受体的稳定和有效结合,表明了有希望的作用机制.

关键词:

免疫信息系统是一种免疫信息系统.蛋白质组是蛋白质组的组成部分.这是一种重组疫苗.这种类型的沙门氏菌.台风是什么? 台风是什么? 台风是什么?

更多相关视频

Laser Microdissection-Based Protocol for the LC-MS/MS Analysis of the Proteomic Profile of Neuromelanin Granules

Published on: December 16, 2021

Detection of Neutralization-sensitive Epitopes in Antigens Displayed on Virus-Like Particle VLP-Based Vaccines Using a Capture Assay

Detection of Neutralization-sensitive Epitopes in Antigens Displayed on Virus-Like Particle VLP-Based Vaccines Using a Capture Assay

Published on: February 10, 2022

相关概念视频

Vaccinations

Vaccinations

Genome-wide Association Studies-GWAS

Genome-wide Association Studies-GWAS

Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...

Proteomics

Proteomics

A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term...

Cancer Vaccines

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...

What is Genetic Engineering?

What is Genetic Engineering?

Heat Engines

Heat Engines

A heat engine is a device used to extract heat from a source and then convert it into mechanical work used for various applications. For example, a steam engine on an old-style train can produce the work needed for driving the train.
Whenever we consider heat engines (and associated devices such as refrigerators and heat pumps), we do not use the standard sign convention for heat and work. For convenience, we assume that the symbols Qh, Qc, and W represent only the amounts of heat transferred...