基于 B 细胞和 T 细胞表位的 SARS-CoV-2 肽疫苗的免疫信息学设计。

Immunoinformatics design of B and T-cell epitope-based SARS-CoV-2 peptide vaccination.

机构信息

Anhui Province Key Laboratory of Embryo Development and Reproduction Regulation, Anhui Province Key Laboratory of Environmental Hormone and Reproduction, School of Biological and Food Engineering, Fuyang Normal University, Fuyang, China.

Department of Physics, College of Science, City University of Hong Kong, Kowloon, Hong Kong SAR, China.

出版信息

Front Immunol. 2023 Jan 4;13:1001430. doi: 10.3389/fimmu.2022.1001430. eCollection 2022.

Abstract

SARS-COV-2 is a virulent respiratory virus, first identified in China (Wuhan) at the end of 2019. Scientists and researchers are trying to find any possible solution to this deadly viral disease. Different drug source agents have been identified, including western medicine, natural products, and traditional Chinese medicine. They have the potential to counteract COVID-19. This virus immediately affects the liver and causes a decrease in oxygen levels. In this study, multiple vacciome approaches were employed for designing a multi-epitope subunit vaccine for battling against SARS-COV-2. Vaccine designing, immunogenicity, allergenic, and physico-chemical assessment were performed by using the vacciome approach. The vaccine design is likely to be antigenic and produce potent interactions with ACE2 and NSP3 receptors. The developed vaccine has also been given to in-silico cloning models and immune response predictions. A total number of 12 CTL and 12 HTL antigenic epitopes were predicted from three selected covid-19 virulent proteins (spike protein, nucleocapsid protein, and membrane proteins, respectively) based on C-terminal cleavage and MHC binding scores. These predicted epitopes were amalgamated by AYY and GPGPG linkers, and a β-defensins adjuvant was inserted into the N-terminus of this vaccine. This analysis shows that the recommended vaccine can produce immune responses against SARS-COV-2. Designing and developing of the mentioned vaccine will require further experimental validation.

摘要

SARS-COV-2 是一种烈性呼吸道病毒,于 2019 年底在中国(武汉)首次被发现。科学家和研究人员正在努力寻找针对这种致命病毒性疾病的任何可能解决方案。已经确定了不同的药物来源,包括西药、天然产品和中药,它们有可能对抗 COVID-19。这种病毒会立即影响肝脏,导致氧气水平下降。在这项研究中,采用了多种疫苗组方法来设计针对 SARS-COV-2 的多表位亚单位疫苗。使用疫苗组方法进行疫苗设计、免疫原性、变应原性和物理化学评估。该疫苗设计可能具有抗原性,并与 ACE2 和 NSP3 受体产生强大的相互作用。所开发的疫苗也已被用于计算机模拟克隆模型和免疫反应预测。从三种选定的新冠病毒(分别是刺突蛋白、核衣壳蛋白和膜蛋白)中预测了 12 个 CTL 和 12 个 HTL 抗原表位,基于 C 末端切割和 MHC 结合评分。这些预测的表位通过 AYY 和 GPGPG 接头进行合并,并在疫苗的 N 端插入了 β-防御素佐剂。该分析表明,建议的疫苗可以针对 SARS-COV-2 产生免疫反应。该疫苗的设计和开发需要进一步的实验验证。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2f7e/9846236/1df70267839c/fimmu-13-1001430-g001.jpg

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