J Periodontol:吸烟对腭黏膜相关的免疫基因的影响

2020-06-26 网络 网络

吸烟对牙周健康和治疗效果有重要的影响,但是,吸烟对口腔免疫稳态的分子影响尚未完全阐明。本研究旨在检测健康腭黏膜中与吸烟相关的基因表达变化进行全面评估,并确定可能涉及的免疫通路。

吸烟对牙周健康和治疗效果有重要的影响,但是,吸烟对口腔免疫稳态的分子影响尚未完全阐明。本研究旨在检测健康腭黏膜中与吸烟相关的基因表达变化进行全面评估,并确定可能涉及的免疫通路。

取牙周健康的吸烟者和非吸烟者的腭组织活检。通过生化检验(呼出气CO和血清可替宁)确定吸烟状态。组织样品经过处理,用于下一代测序,定量实时聚合酶链反应(qPCR)和免疫组化。并进行基因集富集/通路分析以及基因表达与血清可替宁水平之间的相关性分析。

对12名非吸烟者和10名吸烟者的腭组织进行分析,发现830个基因明显(P <0.05)差异表达(DEGs),249个变化(FC)> 2倍。 CYP1A1,CYP1B1和USP17L9P的表达增加最多(≥5-FC);减少最多的(≥6-FC)是IL36A,DEFB4A,DEFB4B,SPRR2F,CCL20,KLK6和ADH4。 203 DEG(FC> 2)与血清可替宁水平显着相关。可替宁相关基因的重要富集通路包括抗菌体液反应,调节体液反应和各种代谢过程。 qPCR和免疫组织化学证实了所选DEG的基因和蛋白质表达。

因此,吸烟对正常人腭黏膜的转录组有显著影响,包括先天免疫防御相关的重要基因,这可能是吸烟增加牙周炎易感性的关键机制之一。

原文出处:

Yun Wang,Whole transcriptome analysis of smoker palatal mucosa identifies multiple downregulated innate immunity genes. Journal of periodontology, 2020 June. Doi: 10.1002/JPER.19-0467

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