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

机译:HPV16 / 18 L1 VLP疫苗诱导交叉中和抗体,可能介导交叉保护

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摘要

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 (TM) 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.
机译:基于人乳头瘤病毒(HPV)L1 VLP的疫苗可预防与HPV疫苗相关的类型;但是,保护的相关性尚未定义。我们观察到,对于已经证明具有疫苗效力证据的HPV类型(HPV31 / 45),对于其他类型(HPV52 / 58),用Cervarix(TM)疫苗接种可诱导交叉中和抗体。此外,HPV31 / 45交叉中和效价显示随着剂量数量的增加而显着增加(HPV31,p <0.001; HPV45,p <0.001),并分别与HPV16 / 18中和效价相关。这些发现增加了交叉中和抗体是对HPV16 / 18疫苗观察到的交叉保护效应的可能性。

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