Division of Vaccine Design and Development, Helix Biogen Institute, Ogbomoso, Oyo State, Nigeria.
Division of Genome Sciences, Helix Biogen Institute, Ogbomoso, Oyo State, Nigeria.
BMC Immunol. 2024 Nov 20;25(1):77. doi: 10.1186/s12865-024-00668-2.
The Mokola Virus belongs to the family Rhabdoviridae and is genotype 3 of the Lyssavirus genera. A small number of cases of animal and human encephalomyelitis, mainly scattered over sub-Saharan Africa, have been linked to the Mokola Virus (MOKV). Currently there is no vaccine to protect against MOKV infection in people or animals. It has been proven that rabies vaccination does not confer immunity against MOKV infection, even though MOKV and the rabies virus are related. Using immunoinformatics approaches, this study designed an mRNA vaccine that can protect against all the five glycoproteins of the Mokola virus. NCBI was used to obtain the viral sequences, which were then screened for antigenicity, allergenicity, toxicity, B-cell epitopes, CD8 + T lymphocytes (CTL), and CD4 + T lymphocytes (HTL). These epitopes were used in the construction of the vaccine. Some extra co-translational residues were added to the mRNA vaccine construct. Its molecular weight is 129.19083 kDa, and its estimated pI is 8.58. It interacts rather steadily and with limited deformability with TLR 3, among other human innate immune receptors. Overall, the results show that the produced candidate vaccine is non-allergen, non-toxic, and can elicit T-cell and B-cell immune responses. These findings can further be subjected to in-vivo and in-vitro techniques for validation.
莫科拉病毒属于 Rhabdoviridae 科,是 Lyssavirus 属的 3 型。少数动物和人类的脑炎病例主要分布在撒哈拉以南非洲,与莫科拉病毒(MOKV)有关。目前,尚无针对人和动物的 MOKV 感染的疫苗。已证明狂犬病疫苗不能提供针对 MOKV 感染的免疫,尽管 MOKV 和狂犬病病毒有关。本研究采用免疫信息学方法设计了一种 mRNA 疫苗,可预防莫科拉病毒的所有 5 种糖蛋白。使用 NCBI 获得病毒序列,然后对其进行抗原性、变应原性、毒性、B 细胞表位、CD8+T 淋巴细胞(CTL)和 CD4+T 淋巴细胞(HTL)的筛选。这些表位用于构建疫苗。在 mRNA 疫苗构建中添加了一些额外的共翻译残基。其分子量为 129.19083 kDa,估计 pI 为 8.58。它与 TLR 3 等其他人类先天免疫受体相互作用相当稳定且具有有限的可变形性。总体而言,结果表明所产生的候选疫苗是非过敏原、无毒的,可引起 T 细胞和 B 细胞免疫反应。这些发现可以进一步通过体内和体外技术进行验证。