Puagsopa Japigorn, Jumpalee Panuwid, Dechanun Sittichoke, Choengchalad Sukanya, Lohasupthawee Pana, Sutjaritvorakul Thanawat, Meksiriporn Bunyarit
Department of Physiology and Aging, College of Medicine, University of Florida, Gainesville, FL 32610, USA.
Department of Biology, School of Science, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand.
Int J Mol Sci. 2025 Jul 25;26(15):7210. doi: 10.3390/ijms26157210.
Monkeypox virus (MPXV) has caused 148,892 confirmed cases and 341 deaths from 137 countries worldwide, as reported by the World Health Organization (WHO), highlighting the urgent need for effective vaccines to prevent the spread of MPXV. Traditional vaccine development is low-throughput, expensive, time consuming, and susceptible to reversion to virulence. Alternatively, a reverse vaccinology approach offers a rapid, efficient, and safer alternative for MPXV vaccine design. Here, MPXV proteins associated with viral infection were analyzed for immunogenic epitopes to design multi-epitope vaccines based on B-cell, CD4+, and CD8+ epitopes. Epitopes were selected based on allergenicity, antigenicity, and toxicity parameters. The prioritized epitopes were then combined via peptide linkers and N-terminally fused to various protein adjuvants, including PADRE, beta-defensin 3, 50S ribosomal protein L7/12, RS-09, and the cholera toxin B subunit (CTB). All vaccine constructs were computationally validated for physicochemical properties, antigenicity, allergenicity, safety, solubility, and structural stability. The three-dimensional structure of the selected construct was also predicted. Moreover, molecular docking and molecular dynamics (MD) simulations between the vaccine and the TLR-4 immune receptor demonstrated a strong and stable interaction. The vaccine construct was codon-optimized for high expression in the and was finally cloned in silico into the pET21a (+) vector. Collectively, these results could represent innovative tools for vaccine formulation against MPXV and be transformative for other infectious diseases.
据世界卫生组织(WHO)报告,猴痘病毒(MPXV)已在全球137个国家造成148,892例确诊病例和341例死亡,凸显了迫切需要有效的疫苗来预防MPXV传播。传统疫苗开发通量低、成本高、耗时且易发生毒力回复。相比之下,反向疫苗学方法为MPXV疫苗设计提供了一种快速、高效且更安全的替代方案。在此,对与病毒感染相关的MPXV蛋白进行免疫原性表位分析,以设计基于B细胞、CD4 +和CD8 +表位的多表位疫苗。根据致敏性、抗原性和毒性参数选择表位。然后通过肽接头将优先选择的表位组合,并在N端与各种蛋白质佐剂融合,包括PADRE、β-防御素3、50S核糖体蛋白L7/12、RS-09和霍乱毒素B亚基(CTB)。对所有疫苗构建体进行了物理化学性质、抗原性、致敏性、安全性、溶解性和结构稳定性的计算验证。还预测了所选构建体的三维结构。此外,疫苗与TLR-4免疫受体之间的分子对接和分子动力学(MD)模拟显示出强烈且稳定的相互作用。对疫苗构建体进行密码子优化以在 中高表达,最后在计算机上克隆到pET21a(+)载体中。总体而言,这些结果可能代表了针对MPXV疫苗制剂的创新工具,并对其他传染病具有变革性意义。
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