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HPV16/18 L1 VLP 疫苗可诱导交叉中和抗体,可能介导交叉保护。

HPV16/18 L1 VLP vaccine induces cross-neutralizing antibodies that may mediate cross-protection.

机构信息

HPV Immunology Laboratory, SAIC-Frederick, Inc., NCI-Frederick, Frederick, MD 21702, USA.

出版信息

Vaccine. 2011 Mar 3;29(11):2011-4. doi: 10.1016/j.vaccine.2011.01.001. Epub 2011 Jan 15.

Abstract

Human papillomavirus (HPV) L1 VLP-based vaccines are protective against HPV vaccine-related types; however, the correlates of protection have not been defined. We observed that vaccination with Cervarix™ induced cross-neutralizing antibodies for HPV types for which evidence of vaccine efficacy has been demonstrated (HPV31/45) but not for other types (HPV52/58). In addition, HPV31/45 cross-neutralizing titers showed a significant increase with number of doses (HPV31, p<0.001; HPV45, p<0.001) and correlated with HPV16/18 neutralizing titers, respectively. These findings raise the possibility that cross-neutralizing antibodies are effectors of cross-protection observed for the HPV16/18 vaccine.

摘要

人乳头瘤病毒(HPV)L1 病毒样颗粒(VLP)疫苗可预防 HPV 疫苗相关型别;然而,保护相关因素尚未确定。我们观察到,接种佳达修(Cervarix)可诱导针对已证明具有疫苗效力的 HPV 型别(HPV31/45)的交叉中和抗体,但不针对其他型别(HPV52/58)。此外,HPV31/45 的交叉中和滴度随着剂量的增加而显著增加(HPV31,p<0.001;HPV45,p<0.001),并分别与 HPV16/18 的中和滴度相关。这些发现提示,交叉中和抗体可能是 HPV16/18 疫苗观察到的交叉保护的效应物。

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