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研究系统性红斑狼患者的lncRNA表达变化及其与Treg细胞的相关性

Yu-Jie Bu¹, Xing Cen¹, Yi-Qi Wang²

¹Department of Rheumatology and Immunology, the Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, 030001, People's Republic of China.

Clinical rheumatology

|January 22, 2024

概括

系统性红斑狼 (SLE) 涉及与调控性T (Treg) 细胞数量相关的长非编码RNA (lncRNA) 表达的改变. 这些lncRNA与疾病活性相关,可能为SLE提供新的治疗点.

科学领域:

免疫学免疫学免疫学
遗传学遗传学是一个
分子生物学分子生物学

背景情况:

系统性红斑狼 (SLE) 是一种复杂的自身免疫性疾病,其特征是免疫系统失调.
调节性T (Treg) 细胞在维持免疫平衡和预防自身免疫性方面发挥着至关重要的作用.
异常长非编码RNA (lncRNA) 表达已与各种自身免疫性疾病有关,但它们在SLE病原发生中的特定作用仍未完全阐明.

研究的目的:

为了研究SLE患者lncRNAs的差异表达.
分析特定的lncRNAs与SLE患者Treg细胞数量之间的相关性.
探索 lncRNAs 调节 SLE 中 Treg 细胞分化和功能的潜在机制,并确定潜在的治疗点.

主要方法:

整个转录组测序是在活跃的SLE患者和健康对照者的外周血液单核细胞 (PBMC) 上进行的.
通过Pearson相关性分析识别了差异表达的lncRNA并与Treg细胞数相关.
评估了与Treg相关的lncRNA和临床参数 (SLEDAI得分,ESR,C3,C4) 之间的相关性.
使用生物信息数据库 (miRcode,Targetscan) 和共同表达网络分析,预测了与Treg相关的lncRNA的目标基因.

主要成果:

与健康对照人群相比,在SLE患者中共发现了240种差异表达的lncRNAs.
一些lncRNAs,包括ANKRD44-AS1,LINC00200,AP001363.2和LINC02824,显示出与Treg细胞数的正相关性,而AP000640.1,AC124248.1,LINC00482和MIR503HG显示出负相关性.
在SLE患者中,lncRNAs LINC00482和MIR503HG与C3水平负相关.
预测的机制表明,lncRNAs通过影响关键基因 (如STAT5,PLD1,HOPX和RUNX3) 通过miRNA竞争或跨调节机制来调节Treg细胞分化和功能.

结论:

在SLE患者中,lncRNA表达特征显著改变,并与异常的Treg细胞数量和功能有关.
与Treg相关的lncRNA与SLE疾病活性相关,这表明它们参与了SLE的发病.
这些发现突显了lncRNAs作为SLE治疗点的潜力,可能是通过影响Treg细胞功能的表观遗传修饰来实现的.

关键词:

红斑性狼是一种血红性狼.这是一个RNARNARNARNARNA.的T-淋巴细胞.长时间的非编码.监管部门的监管机构.一个系统性的系统.

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