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首页> 外文期刊>Nature >Access of protective antiviral antibody to neuronal tissues requires CD4 T-cell help
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Access of protective antiviral antibody to neuronal tissues requires CD4 T-cell help

机译:保护性抗病毒抗体进入神经元组织需要CD4 T细胞帮助

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摘要

Circulating antibodies can access most tissues to mediate surveillance and elimination of invading pathogens. Immunoprivileged tissues such as the brain and the peripheral nervous system are shielded from plasma proteins by the blood-brain barrier(1) and blood-nerve barrier(2), respectively. Yet, circulating antibodies must somehow gain access to these tissues to mediate their antimicrobial functions. Here we examine the mechanism by which antibodies gain access to neuronal tissues to control infection. Using a mouse model of genital herpes infection, we demonstrate that both antibodies and CD4 T cells are required to protect the host after immunization at a distal site. We show that memory CD4 T cells migrate to the dorsal root ganglia and spinal cord in response to infection with herpes simplex virus type 2. Once inside these neuronal tissues, CD4 T cells secrete interferon-gamma and mediate local increase in vascular permeability, enabling antibody access for viral control. A similar requirement for CD4 T cells for antibody access to the brain is observed after intranasal challenge with vesicular stomatitis virus. Our results reveal a previously unappreciated role of CD4 T cells in mobilizing antibodies to the peripheral sites of infection where they help to limit viral spread.
机译:循环抗体可以进入大多数组织,以介导监视并消除入侵的病原体。诸如脑和外周神经系统之类的免疫特权组织分别被血脑屏障(1)和血神经屏障(2)与血浆蛋白隔离。然而,循环抗体必须以某种方式获得进入这些组织的途径,以介导其抗微生物功能。在这里,我们检查了抗体进入神经元组织以控制感染的机制。使用生殖器疱疹感染的小鼠模型,我们证明在远端部位免疫后,抗体和CD4 T细胞都需要保护宿主。我们显示记忆性CD4 T细胞迁移到背根神经节和脊髓以响应2型单纯疱疹病毒感染。一旦进入这些神经元组织,CD4 T细胞就会分泌干扰素-γ并介导血管通透性的局部增加,从而使抗体进行病毒控制。在用水泡性口炎病毒鼻内攻击后,观察到对CD4 T细胞抗体进入大脑的类似要求。我们的研究结果揭示了CD4 T细胞在动员抗体至感染的外周部位(其有助于限制病毒扩散)方面以前未曾意识到的作用。

著录项

  • 来源
    《Nature》 |2016年第7604期|552-556|共5页
  • 作者

    Iijima Norifumi; Iwasaki Akiko;

  • 作者单位

    Yale Univ, Sch Med, Dept Immunobiol, Howard Hughes Med Inst, 333 Cedar St, New Haven, CT 06520 USA;

    Yale Univ, Sch Med, Dept Immunobiol, Howard Hughes Med Inst, 333 Cedar St, New Haven, CT 06520 USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
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