对宿主和病原体基因组的对分析确定了人类结核病的决定因素
Yang Luo1,2,3,4,5,6, Chuan-Chin Huang7,8, Nicole C Howard9
1Center for Data Sciences, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
Nature communications
|November 29, 2024
概括
宿主中的遗传变异和Mycobacterium结核病影响传染病. 一项研究发现,人类基因变异与特定的结核病菌株之间存在联系,但随着时间的推移,这种联系发生了变化,这表明了环境影响.
科学领域:
- 遗传学 是一个遗传学.
- 传染病流行病学 传染病流行病学
- 微生物学 微生物学
背景情况:
- 传染病是由宿主-病原体的遗传相互作用引起的.
- 结核病 (TB) 的动态受人类和Mycobacterium tuberculosis (Mtb) 遗传变异的影响.
研究的目的:
- 为了研究人类遗传变异和Mtb菌株之间的基因组对基因组相互作用.
- 确定影响结核病易感性和进展的特定遗传关联.
主要方法:
- 来自秘鲁1556名结核病患者的配对人类和Mtb基因组的基因组对基因组分析.
- 人类巨细胞感染模型,以评估宿主对Mtb菌株的反应.
- 2010年和2020年的队列中遗传关联的比较分析.
主要成果:
- 在FLOT1基因中的人体内基因变异rs3130660与Mtb Lineage 2亚系 (OR=10.06,P=7.92×10−8) 之间发现了关联.
- 具有rs3130660-A等位基因的宿主在巨细胞模型中显示出更强的干扰素基因特征.
- 相互作用的Mtb菌株具有影响 redox 状态的 thioredoxin 减少酶突变.
- 到2020年,相互作用的Mtb菌株的流行率翻了一番,但在最近的队列中,与rs3130660的关联消失了.
结论:
- 主体遗传学,病原体遗传学和环境因素在结核病中发生动态相互作用.
- 观察到rs3130660与Mtb Lineage 2之间的关联不是恒定的,可能会受到环境条件变化或病原体演变的影响.
- 需要进一步的研究来阐明这些复杂相互作用背后的机制及其对结核病流行病学的影响.
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