The spectrum of latent tuberculosis: rethinking the biology and intervention strategies.

The spectrum of latent tuberculosis: rethinking the biology and intervention strategies.
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DOI:
10.1038/nrmicro2236
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发表时间:
2009-12
期刊:
Nature reviews. Microbiology
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免疫学测试提供了全球三分之一人口(超过二十亿人)存在潜伏性结核病的证据。潜伏性结核病的定义是没有临床症状,但有随后进展为临床疾病的风险,特别是在与艾滋病毒合并感染的情况下。在这里,我们讨论潜伏性结核病的生物学,作为结核分枝杆菌感染后发生的广泛反应的一部分,导致形成一系列生理上不同的肉芽肿性病变,这些病变提供具有不同能力的环境来支持或抑制活细菌的持续存在。我们继续展示如何使用该模型来制定合理的计划,以发现可有效根除结核分枝杆菌感染的药物。
Immunological tests provide evidence of latent tuberculosis in one third of the global population, more than two billion individuals. Latent tuberculosis is defined by the absence of clinical symptoms but carries a risk of subsequent progression to clinical disease, particularly in the context of co-infection with HIV. Here we discuss the biology of latent tuberculosis as part of a broad spectrum of responses that occur following infection with Mycobacterium tuberculosis, resulting in formation of a range of physiologically distinct granulomatous lesions that provide environments with differential ability to support or suppress persistence of viable bacteria. We go on to show how this model can be used to inform a rational programme to discover drugs that will be effective in the eradication of M. tuberculosis infection.
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