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Human antibodies to the dengue virus E-dimer epitope have therapeutic activity against Zika virus infection

机译:登革热病毒E-Dimer表位的人抗体对Zika病毒感染具有治疗活动

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摘要

The Zika virus (ZIKV) epidemic has resulted in congenital abnormalities in fetuses and neonates. Although some cross-reactive dengue virus (DENV)-specific antibodies can enhance ZIKV infection in mice, those recognizing the DENV E-dimer epitope (EDE) can neutralize ZIKV infection in cell culture. We evaluated the therapeutic activity of human monoclonal antibodies to DENV EDE for their ability to control ZIKV infection in the brains, testes, placentas, and fetuses of mice. A single dose of the EDE1-B10 antibody given 3 d after ZIKV infection protected against lethality, reduced ZIKV levels in brains and testes, and preserved sperm counts. In pregnant mice, wild-type or engineered LALA variants of EDE1-B10, which cannot engage Fc gamma receptors, diminished ZIKV burden in maternal and fetal tissues, and protected against fetal demise. Because neutralizing antibodies to EDE have therapeutic potential against ZIKV, in addition to their established inhibitory effects against DENV, it may be possible to develop therapies that control disease caused by both viruses.
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著录项

  • 来源
    《Nature immunology》 |2017年第11期|共9页
  • 作者单位

    Washington Univ Sch Med Dept Pathol &

    Immunol St Louis MO 63110 USA;

    Imperial Coll Dept Med Div Immunol &

    Inflammat Hammersmith Campus London England;

    Washington Univ Sch Med Dept Obstet &

    Gynecol St Louis MO 63110 USA;

    Washington Univ Sch Med Dept Obstet &

    Gynecol St Louis MO 63110 USA;

    Imperial Coll Dept Med Div Immunol &

    Inflammat Hammersmith Campus London England;

    Imperial Coll Dept Med Div Immunol &

    Inflammat Hammersmith Campus London England;

    Washington Univ Sch Med Dept Obstet &

    Gynecol St Louis MO 63110 USA;

    Washington Univ Sch Med Dept Obstet &

    Gynecol St Louis MO 63110 USA;

    Imperial Coll Dept Med Div Immunol &

    Inflammat Hammersmith Campus London England;

    Washington Univ Sch Med Dept Obstet &

    Gynecol St Louis MO 63110 USA;

    Washington Univ Sch Med Dept Pathol &

    Immunol St Louis MO 63110 USA;

    Imperial Coll Dept Med Div Immunol &

    Inflammat Hammersmith Campus London England;

    Washington Univ Sch Med Dept Pathol &

    Immunol St Louis MO 63110 USA;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 医学免疫学;
  • 关键词

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