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在全身性红斑狼患者的B细胞中改变了甲基化相关基因表达

Amin Azizan¹, Elham Farhadi², Seyedeh Tahereh Faezi³

¹Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran; Research Center for Chronic Inflammatory Diseases, Tehran University of Medical Sciences, Tehran, Iran.

Clinical immunology (Orlando, Fla.)

|October 10, 2025

概括

在全身性红斑狼 (SLE) 中,B细胞显示了DNA甲基化调节者的改变表达. 在活跃的SLE B细胞中,UHRF1mRNA减少,而TET3mRNA增加,这表明表观遗传失调.

科学领域:

免疫学免疫学免疫学
表观遗传学在表观遗传学中,表观遗传学是指表观遗传学.
分子生物学分子生物学

背景情况:

通过自身抗体的产生,B细胞在全身性红斑狼 (SLE) 发病过程中发挥着关键作用.
B细胞中的DNA低甲基化是SLE的特征特征,可能与表观遗传调节器表达变化有关.

研究的目的:

研究SLE患者B细胞中DNA甲基化调节剂 (DNMT1,UHRF1) 和脱甲基化调解剂 (TET2,TET3) 的mRNA表达.
探索这些表观遗传因素与SLE疾病活动之间的关系.

主要方法:

使用定量实时PCR (qRT-PCR) 来测量mRNA表达水平.
从具有活性SLE,非活性SLE和健康对照个体中净化了B细胞.
在实验室中用抗人类IgM刺激B细胞以评估动态变化.

主要成果:

与对照细胞相比,基线UHRF1mRNA表达在活跃的SLE B细胞中明显较低.
基线TET3mRNA表达在活跃的SLE B细胞中明显高于对照细胞.
抗IgM激活在活跃的SLE B细胞中进一步降低了UHRF1和增加了TET3mRNA;DNMT1和TET2没有显著差异.

结论:

从活跃的SLE患者的B细胞中改变UHRF1和TET3mRNA表达表明潜在的表观遗传失调.
这些发现表明UHRF1和TET3可能与SLE病理生物学有关.
需要进一步的研究来阐明这些表观遗传调节剂在SLE中的作用.

关键词:

B 细胞 B 细胞 B 细胞通过DNA甲基化.在 DNMT1 中,DNMT1 是一个字符串.系统性红斑狼 (SLE) 是一种在TET2的基础上.在TET3的基础上.在UHRF1中,UHRF1是

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Epigenetic Regulation

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X-chromosome...