J Allergy Clin Immunol:儿童过敏症中共同的DNA甲基化特征

2021-01-12 AlexYang MedSci原创

与过敏相关的差异性DNA甲基化可能为哮喘,鼻炎和湿疹的共同的或独特的病因提供新的认识。最近,有研究人员确定了与儿童过敏相关的DNA甲基化概况。

与过敏相关的差异性DNA甲基化可能为哮喘,鼻炎和湿疹的共同的或独特的病因提供新的认识。最近,有研究人员确定了与儿童过敏相关的DNA甲基化概况

研究人员在欧洲MeadALL联盟中进行了全血DNA甲基化的表观基因组关联研究,并采用横断面设计。研究包括了来自三个出生队列的219个病例和417个对照(4岁),以及228个病例和593个对照(8岁),以及进行重复分析的325个病例和1111个对照。结果表明,研究人员共发现了80个差异甲基化的CpG位点(CpGs),这些位点在发现阶段出现了1-3%的甲基化差异,其中21个位点包括了5个新的CpGs,且meta分析后具有全基因组显著性。所有21个CpGs的甲基化在过敏症状中有显著差异,并在哮喘、鼻炎和湿疹之间共享。该21个CpGs定位到了相关基因,包括ACOT7、LMAN3和CLDN23。所有21个CpGs在哮喘分离的嗜酸性粒细胞中都有不同程度的甲基化,10个CpGs在呼吸道上皮细胞中也有不同程度的甲基化。

最后,研究人员指出,21个CpGs的全血DNA甲基化降低与儿童过敏显著相关。他们的结果为哮喘、鼻炎和湿疹的共有的分子机制提供了新的认知

原始出处:

Cheng-Jian Xu, Olena Gruzieva, Cancan Qi et al. Shared DNA methylation signatures in childhood allergy: the MeDALL study. J Allergy Clin Immunol. Dec 2020

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    2021-06-18 zutt
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    2021-01-15 margery

    学习学习

    0

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    2021-01-14 膀胱癌
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