开发一种潜在的针对Capripox病毒的疫苗,实现逆向疫苗学和泛基因组免疫信息学
Md Mohaimenul Islam Tareq1, Sattyajit Biswas2, Farazi Abinash Rahman2
1Laboratory of Pharmaceutical Biotechnology and Bioinformatics, Department of Genetic Engineering and Biotechnology, Jashore University of Science and Technology, Jashore, Bangladesh.
PloS one
|July 2, 2025
概括
这项研究使用免疫信息学开发了一种针对capripoxvirus (CPXV) 的新型多层疫苗. 该疫苗向保存的病毒蛋白质,提供潜在的广泛保护,防止绵羊,山羊和牛的疾病.
科学领域:
- 兽医免疫学和疫苗学 兽医免疫学和疫苗学
- 生物信息学和计算生物学
- 分子病毒学分子病毒学.
背景情况:
- 卡普里波克斯病毒 (CPXV) 导致畜牧业的经济重大疾病,包括皮病 (牛),羊 (绵羊) 和山羊 (山羊).
- 目前,没有有效的疫苗存在,可以提供对这些CPXV引起的疾病的交叉保护.
研究的目的:
- 通过免疫信息学方法在CPXV蛋白中识别潜在的疫苗标.
- 设计和计算验证一种针对CPXV的多位疫苗构造.
主要方法:
- 对122种CPXV蛋白质进行生物信息分析,以评估毒性,抗原性,毒性和IFN-g活性.
- 从选定的外膜和细胞外蛋白质中预测保存的B细胞和T细胞表位.
- 使用已识别的表位素,链接剂和辅助剂,在体中构建一个多表位素疫苗,随后进行分子建模,验证和分子动力学模拟.
主要成果:
- 确定了三个CPXV外膜和细胞外蛋白 (蛋白A35,蛋白溶解A22和脚手架蛋白) 作为有前途的疫苗候选人.
- 设计了一种多表位细胞疫苗结构,包含保存的MHC-I,MHC-II和B细胞表位细胞,与辅助剂结合,以增强免疫性.
- 计算机克隆和分子动力学模拟证实了设计的CPXV-V5疫苗结构的结构稳定性和潜在免疫性.
结论:
- 在 silico 开发的多型疫苗显示出对 CPXV 菌株安全有效的交叉保护的承诺.
- 这项研究为实验验证和开发新型CPXV疫苗提供了坚实的基础.
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