Antibodies to an interfering epitope in hepatitis C virus E2 can mask vaccine-induced neutralizing activity

丙型肝炎病毒 E2 干扰表位的抗体可以掩盖疫苗诱导的中和活性

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作者:Alla Kachko, Sharon E Frey, Lev Sirota, Ranjit Ray, Frances Wells, Iryna Zubkova, Pei Zhang, Marian E Major

Conclusion

These data show that antibodies to the region 434-446 are induced during immunization of individuals with recombinant E1E2 proteins, and that these antibodies can mask effective neutralizing activity from EP-I-specific antibodies. Elicitation of EP-II-specific antibodies with interfering capacity should be avoided in producing an effective cross-neutralizing vaccine aimed at the HCV envelope proteins.

Trial registration

ClinicalTrials.gov NCT00500747.

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