在SET8的microRNA结合部位内的单核酸多态变异改变结性脊髓炎风险
Shasha Zhang1, Yufei Zhao1, Song Wang1
1Department of Immunology and Rheumatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, P.R. China.
Genetic testing and molecular biomarkers
|November 13, 2025
概括
微RNA结合位点 (mir-SNP) 的遗传变异与结性脊髓炎 (AS) 风险有关. SET8 rs16917496 CC基因型增加了AS易感性和氧化应激,表明它在疾病发病过程中的作用.
科学领域:
- 遗传学 遗传学 是一个
- 免疫学 免疫学 免疫学
- 生物化学 生物化学
背景情况:
- 微RNA结合部位 (mir-SNPs) 的遗传多态性可以影响类风湿性疾病的风险.
- SET8基因的3'未翻译区域 (UTR) 含有mir-SNP,可能会影响结椎炎 (AS) 的发展.
研究的目的:
- 调查SET8 (rs16917496) 和KRT81 (rs3660) 中两个mir-SNP与结性脊髓炎 (AS) 风险之间的关联.
- 探索这些mir-SNP对AS患者基因表达和活性氧物种 (ROS) 水平的功能影响.
主要方法:
- 从血液样本中提取DNA,用于聚合酶链反应 (PCR) 基因定型.
- 西部斑点分析以评估SET8蛋白表达水平.
- 使用光探针技术测量血活性氧物种 (ROS) 水平.
主要成果:
- SET8 CC基因型 (rs16917496) 与AS风险增加显著相关 (OR=5.378,p=0.019).
- 与TT基因型相比,具有SET8 CC基因型的个体表现出较低的SET8蛋白表达.
- AS患者的血ROS水平明显高于对照组 (p < 0.001),AS敏感的CC基因型与ROS水平升高有关 (p = 0.033).
结论:
- 位于miR-502结合部位的SET8 3' UTR中的SNP rs16917496作为预测AS风险的潜在生物标志物.
- 这种SNP通过调节SET8表达,从而增加氧化应激,可能有助于AS的发病.
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