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一种安全有效的 BCG 载体疫苗,用于预防由人类呼吸道合胞病毒引起的疾病。

A safe and efficient BCG vectored vaccine to prevent the disease caused by the human Respiratory Syncytial Virus.

机构信息

a Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas , Pontificia Universidad Católica de Chile , Santiago , Chile.

b Departamento de Endocrinología, Facultad de Medicina , Pontificia Universidad Católica de Chile , Santiago , Chile.

出版信息

Hum Vaccin Immunother. 2017 Sep 2;13(9):2092-2097. doi: 10.1080/21645515.2017.1334026. Epub 2017 Jun 9.

Abstract

The human Respiratory Syncytial Virus (hRSV) causes lower respiratory tract infections including pneumonia and bronchiolitis. Such infections also cause a large number of hospitalizations and affects mainly newborns, young children and the elderly worldwide. Symptoms associated with hRSV infection are due to an exacerbated immune response characterized by low levels of IFN-γ, recruitment of neutrophils and eosinophils to the site of infection and lung damage. Although hRSV is a major health problem, no vaccines are currently available. Different immunization approaches have been developed to achieve a vaccine that activates the immune system, without triggering an unbalanced inflammation. These approaches include live attenuated vaccine, DNA or proteins technologies, and the use of vectors to express proteins of the virus. In this review, we discuss the host immune response to hRSV and the immunological mechanisms underlying an effective and safe BCG vectored vaccine against hRSV.

摘要

人类呼吸道合胞病毒(hRSV)可引起下呼吸道感染,包括肺炎和细支气管炎。此类感染还会导致大量住院治疗,并且主要影响全球的新生儿、幼儿和老年人。与 hRSV 感染相关的症状是由于免疫反应加剧所致,其特征是 IFN-γ 水平降低、中性粒细胞和嗜酸性粒细胞募集到感染部位和肺部损伤。尽管 hRSV 是一个主要的健康问题,但目前尚无可用的疫苗。已经开发了不同的免疫接种方法来实现一种能够激活免疫系统而不引发失衡炎症的疫苗。这些方法包括减毒活疫苗、DNA 或蛋白质技术,以及使用载体来表达病毒蛋白。在这篇综述中,我们讨论了宿主对 hRSV 的免疫反应以及基于卡介苗载体疫苗对 hRSV 有效和安全的免疫机制。

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