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系统注射一种强大的小鼠单克隆抗体,可对HPV16感染提供多位保护

Bilian Huang¹, Doudou Zhang¹, Hongyun Wang²

¹Center for Public Health Research, Medical School, Nanjing University, Nanjing, China.

International immunopharmacology

|October 1, 2024

概括

一种新的中和抗体,20F6对人类乳头瘤病毒16型 (HPV16) 和相关的HPV类型表现出强烈的活性. 这种抗体有可能在多个粘膜部位对HPV感染进行预防性治疗.

科学领域:

病毒学病毒学
免疫学免疫学免疫学
在瘤学瘤学.

背景情况:

人类乳头瘤病毒 (HPV) 的预防性疫苗存在,但并不涵盖所有菌株,并且某些人群无法获得.
患有高风险HPV类型的持续性感染,特别是HPV16,是导致宫癌,癌和口腔癌的主要原因.
对于药物干预来治疗现有的HPV感染非常需要.

研究的目的:

识别和表征具有针对HPV16和相关高风险HPV类型的强活性中和抗体.
在临床前模型中评估领先候选抗体的治疗和预防潜力.

主要方法:

使用混合瘤技术对中和抗体进行查.
在体外鉴定抗体有效性,包括针对HPV16和其他HPV亚型的IC50测定.
在小鼠体内使用HPV16伪病毒 (PSV) 的疗效研究,以评估抗体注射后的保护.
系统注射后粘膜部位抗体分布的分析.

主要成果:

鉴定出一种中和抗体,20F6,其强大的IC50为0.0011μg/ml,对抗HPV16.
20F6对HPV31,HPV33,HPV52和HPV58进行了交叉中和活性.
该抗体在HPV16 L1蛋白上识别了线性表位MSLW.
在小鼠中,20F6的全身用药对HPV16感染提供了保护,可检测到口腔和阴道部位的中和抗体.

结论:

中和抗体20F6对HPV16和相关的HPV类型表现出强烈的抑制活性.
20F6具有预防性使用的潜力,以保护在多个粘膜部位的HPV感染.
进一步开发20F6可以为HPV相关疾病提供急需的治疗选择.

关键词:

在HPV16中,HPV16是最重要的.多站点保护保护多站点保护中和抗体的抗体.系统的管理系统的管理.

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