Department of Microbiology and Quality Operations Laboratory, University of Veterinary and Animal Sciences, Lahore, Pakistan.
China MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, China.
J Biomol Struct Dyn. 2020 Jul;38(10):3110-3122. doi: 10.1080/07391102.2019.1651673. Epub 2019 Aug 9.
Alkhurma hemorrhagic fever virus (ALKV) causes a fatal clinical disease in human beings of different tropical and sub-tropical regions. Recently, the ALKV epidemics have raised a great public health concern with the room for improvement in the essential therapeutic interventions. Despite increased realistic clinical cases of ALKV infection, the efficient vaccine or immunotherapy is not yet available to-date. Therefore, the current study aimed to analyze the envelope glycoprotein of ALKV for the development of B-cells and T-cells epitope-based peptide vaccine using the computational method. Utilizing various immunoinformatics approaches, a total of 5 B-cells and 25 T-cells (MHC-I = 17, MHC-II = 8) epitope-based peptides were predicted in the current study. All predicted peptides had highest antigenicity and immunogenicity scores along with high binding affinity to human leukocyte antigen (HLA) class II alleles. Among 25T-cell epitopes, three peptides were found alike to have affinity to bind both MHC-I and MHC-II alleles. These outcomes suggested that these predicted epitopes could potentially be used in the development of an efficient vaccine against ALKV, which may enable to elicit both humoral and cell-mediated immunity. Although, these predicted peptides could be useful in designing a candidate vaccine for the prevention of ALKV; however, it's and assessments are prerequisite.Communicated by Ramaswamy H. Sarma.
阿尔克马尔出血热病毒(ALKV)可导致不同热带和亚热带地区人类出现致命的临床疾病。最近,ALKV 疫情引起了极大的公共卫生关注,基本治疗干预措施有待改进。尽管 ALKV 感染的真实临床病例有所增加,但目前尚无有效的疫苗或免疫疗法。因此,本研究旨在利用计算方法分析 ALKV 的包膜糖蛋白,以开发基于 B 细胞和 T 细胞表位的肽疫苗。本研究利用多种免疫信息学方法,共预测了 5 个 B 细胞和 25 个 T 细胞(MHC-I=17,MHC-II=8)表位肽。所有预测的肽均具有最高的抗原性和免疫原性评分,以及与人白细胞抗原(HLA)Ⅱ类等位基因的高结合亲和力。在 25 个 T 细胞表位中,有 3 个肽被发现与 MHC-I 和 MHC-II 等位基因结合的亲和力相似。这些结果表明,这些预测的表位可能可用于开发针对 ALKV 的有效疫苗,从而可能引发体液和细胞介导的免疫。尽管这些预测的肽可用于设计预防 ALKV 的候选疫苗;但需要进行评估。由 Ramaswamy H. Sarma 交流。