...
首页> 外文期刊>Infection and immunity >Naturally Attenuated, Orally Administered Mycobacterium microti as a Tuberculosis Vaccine Is Better than Subcutaneous Mycobacterium bovis BCG
【24h】

Naturally Attenuated, Orally Administered Mycobacterium microti as a Tuberculosis Vaccine Is Better than Subcutaneous Mycobacterium bovis BCG

机译:作为结核病疫苗,口服减毒的自然分枝杆菌比皮下牛分枝杆菌BCG更好

获取原文
           

摘要

Mycobacterium microti is phylogenetically closely related to Mycobacterium tuberculosis and is a member of that complex of organisms. It is a curved, acid-fast bacillus that is naturally attenuated with a narrow host range for Microtus species only. In this study, we confirm the unique susceptibility of voles to infection with M. microti and the relative resistance of mice with a significantly lower organism burden after 8 weeks of infection. In addition, histopathologic examination of lungs reveals a lack of cellular, granulomatous aggregates characteristically seen in murine M. tuberculosis infection. In the past, M. microti has been used successfully in humans as a vaccine against tuberculosis but was associated with cutaneous reactions. In an attempt to circumvent this adverse effect, we report the efficacy of aerosol and oral vaccination with M. microti. High-dose orogastric vaccination with M. microti resulted in a statistically significant improvement in protection against aerosol challenge with virulent M. tuberculosis in the murine model compared with subcutaneous M. bovis BCG Pasteur vaccination.
机译:微量分枝杆菌与结核分枝杆菌在系统发育上密切相关,并且是该生物群的成员。这是一种弯曲的,耐酸的芽孢杆菌,仅对 Microtus 物种具有较窄的宿主范围,可自然衰减。在这项研究中,我们证实了田鼠对 M感染的独特敏感性。感染后8周,微生物负荷显着降低的小鼠的微滴度和相对抗性。另外,肺的组织病理学检查显示缺乏在小鼠 M中特有的细胞性肉芽肿性聚集物。结核感染。过去, M。 microti 已成功用于人类作为抗结核疫苗,但与皮肤反应有关。为了避免这种不利影响,我们报告了气溶胶和 M口服疫苗的疗效。 大剂量口服 M疫苗接种。微量的导致具有毒性的 M对气溶胶攻击的防护具有统计学上的显着改善。鼠模型中的肺结核与皮下 M相比。 Bovis BCG巴斯德疫苗接种。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号