J Periodontal Res: 环境铅对口腔上皮细胞基因表达的影响

2018-12-29 MedSci MedSci原创

牙周炎中的宿主反应涉及一系列局部和迁移细胞类型和生物分子。越来越多的证据表明,这种疾病在人群中的表达,表明了控制疾病发生和严重程度的遗传变异的某些组成部分与疾病部位口腔微生物群的定性和定量参数一致。

牙周炎中的宿主反应涉及一系列局部和迁移细胞类型和生物分子。越来越多的证据表明,这种疾病在人群中的表达,表明了控制疾病发生和严重程度的遗传变异的某些组成部分与疾病部位口腔微生物群的定性和定量参数一致。

然而,关于在宿主遗传和微生物生态学水平上产生环境压力源或改性剂的能力,在宿主遗传和微生物生态学水平上充分了解疾病中的种群变化的信息仍然很少。该研究以病原性口腔生物膜为模型,评估了环境铅暴露对口腔上皮细胞的影响。

方法和结果:使用NanoString技术量化上皮细胞中511个宿主反应相关基因阵列的基因表达谱,我们发现了一个有趣的细胞基础反应的主要组,其中许多基因以前未被认为是上皮细胞的主要反应标记,例如,白细胞介素(IL)-32,CTNNB1,CD59,MIF,CD44和CD99。即使高水平的环境铅也对这些组成性反应几乎没有影响。用生物膜(Streptococcus gordonii / Fusobacterium nucleatum / Porphyromonas gingivalis)刺激细胞导致宿主免疫相关基因阵列的显着增加(511中的134个)。差异表达量最大的是许多以前未被描述为上皮细胞主要应答基因的基因,包括il-32、CD 44、nfkbia、ctsc、tnfap 3、il-1a、il-1b、il-8和ccl 20。虽然在1和/或5μmol/ L的铅浓度下IL-8,CCL20和CD70的水平显着降低,但环境铅对生物膜反应的影响是混合的。

结论

该结果提供了关于口腔上皮细胞表达的基因组合的新信息,靶向生物膜攻击后免疫相关基因阵列的显着增加,以及环境铅对这些诱导反应的集中影响。

原始出处:

Rebecca Peyyala,et al. Environmental lead effects on gene expression in oral epithelial cells.Journal of Periodontal Research.2018 Decemember. Doi: 10.1111/jre.12594

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    2019-10-11 feather89
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    2019-01-01 szc1181881761

    学习了,真的高大上。

    0

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