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在非洲普遍存在且未被当前疫苗覆盖的精选高风险HPV类型的遗传多样性:一个聚合序列数据分析

Babalwa Nyide¹, Miranda Thomas², Lawrence Banks²

¹Discipline of Biochemistry, School of Agriculture and Science, University of KwaZulu-Natal, Pietermaritzburg 3209, South Africa.

International journal of molecular sciences

|November 27, 2025

概括

在非洲普遍存在的高风险人类乳头瘤病毒 (HR-HPV) 类型,如HPV35,51,56和59,表现出显著的遗传多样性. 这一发现对于开发新的,特定于区域的HR-HPV疫苗来对抗癌症负担至关重要.

科学领域:

病毒学病毒学
遗传学遗传学是一个
疫苗学疫苗学疫苗学

背景情况:

高风险的人类乳头瘤病毒 (HR-HPV) 类型的全球分布不同,某些类型 (35,51,56,59) 在非洲更为普遍.
目前基于L1的疫苗不涵盖这些流行非洲HR-HPV类型.
非洲HR-HPVcoproteins的遗传多样性在很大程度上没有特征,限制了疫苗开发.

研究的目的:

研究HR-HPV类型16,18,35,51,56,和59的遗传多样性和进化关系.
为非洲提供数据,为开发新型,区域特定的HR-HPV疫苗提供信息.
在HR-HPV型蛋白中识别潜在的替代疫苗点.

主要方法:

来自NCBI病毒数据库的14332个HR-HPV序列的家族遗传学分析.
使用222个HPV参考序列从乳头瘤病毒表观 (PaVE) 数据库的变体识别.
对非洲普遍存在的HR-HPV类型进行比较基因组分析.

主要成果:

HPV16和HPV35显示出密切的进化相关性,表明潜在的共享疫苗设计特征.
发现了新的非同名突变 (例如,HPV35 E6 E148K,HPV16 E7 S63C,HPV18 L1 S495F).
识别已知的致癌变体,如HPV16 E6 L83V和E7 N29S,突出显著的类型内和类型间的多样性.

结论:

在非洲流通的HR-HPV中存在显著的遗传多样性,包括代表性不足的类型.
这些发现支持针对HPV35,51,56和59的特定区域疫苗的开发.
持续的基因组监测对于减少非洲HPV相关癌症的负担至关重要.

关键词:

非洲非洲非洲遗传多样性遗传多样性高风险的人类乳头瘤病毒 (HR-HPV)在coproteins上的蛋白质.人类遗传学遗传学疫苗,疫苗的使用情况.

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