National Institute of Animal Biotechnology (NIAB), Gachibowli, Gopanpalli, Hyderabad, 500 032, Telangana, India.
Regional Centre for Biotechnology (RCB), Faridabad, 121 001, Haryana, India.
Sci Rep. 2022 Nov 12;12(1):19411. doi: 10.1038/s41598-022-23272-z.
Lumpy skin disease (LSD) is a transboundary viral disease of cattle that causes substantial economic loss globally. There is no specific treatment and subunit vaccine for this disease to date. Reports of the global spread of this disease are worrisome. We designed a multi-epitope protein using an immunoinformatics approach in this study. We analyzed the proteome of LSDV and found 32 structural/surface proteins. Four of these 32 proteins were predicted as antigenic and non-homologous to bovine and highly conserved in 26 LSDV isolates. The predicted B-cell epitopes and CTL epitopes were stitched together with the help of an AAY linker leading to the formation of a multi-epitope protein. The in silico study revealed that the modeled subunit vaccine candidate and TLR4 receptor interact with high affinity. This interaction was also found to be stable using a molecular dynamics simulation study. Our study demonstrates a leap towards developing a subunit vaccine against LSD.
牛结节疹病(LSD)是一种具有传染性的牛病毒性疾病,在全球范围内给养牛业造成了巨大的经济损失。目前针对这种疾病尚无特效疗法和亚单位疫苗。该疾病在全球范围内传播的报道令人担忧。本研究采用免疫信息学方法设计了一种多表位蛋白。我们分析了 LSDV 的蛋白质组,发现了 32 种结构/表面蛋白。这 32 种蛋白中的 4 种被预测为抗原性,与牛无同源性,在 26 株 LSDV 分离株中高度保守。预测的 B 细胞表位和 CTL 表位在 AAY 接头的帮助下拼接在一起,形成多表位蛋白。计算机模拟研究表明,所构建的亚单位疫苗候选物与 TLR4 受体具有高亲和力的相互作用。通过分子动力学模拟研究也发现了这种相互作用的稳定性。本研究为开发 LSD 的亚单位疫苗迈出了重要的一步。
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