线粒体位移循环区域单核酸多态和线粒体DNA复制数与化脊髓炎风险相关
Jingjing Zhang1, Chenxing Peng2, Shuo Xu1
1Department of Immunology and Rheumatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China.
International journal of rheumatic diseases
|August 18, 2023
概括
线粒体DNA (mtDNA) D-循环中的单核酸多态 (SNP) 和mtDNA拷贝数量的增加与结性脊髓炎 (AS) 风险有关. 这些因素可能会促进氧化应激,有助于AS的发病.
科学领域:
- 遗传学和分子生物学
- 免疫学 免疫学 免疫学
- 类风湿病学 类风湿病学
背景情况:
- 结性脊柱炎 (AS) 的发病包括遗传,环境和氧化应激因素.
- 线粒体DNA (mtDNA) 和它的改变与各种疾病有关.
- 特定mtDNA变异和副本数在AS中的作用需要进一步调查.
研究的目的:
- 调查 mtDNA 位移循环 (D-loop) 区域中单核酸多态 (SNPs) 和与化脊髓炎 (AS) 相关的 mtDNA 拷贝数之间的相关性.
- 评估这些遗传因素与AS患者的氧化应激水平之间的关联.
主要方法:
- 从83名AS患者和100名健康对照者的血液样本中提取了基因组DNA.
- 用聚合酶链反应 (PCR) 和定量实时PCR分析mtDNA D-循环SNP和拷贝数.
- 使用光探针技术测量了血活性氧物种 (ROS) 水平.
主要成果:
- 特定的mtDNA D-循环SNP (16304C,16311C,152C) 在AS患者中明显更频繁,表明AS风险增加.
- 与对照组相比,AS患者的mtDNA复制数量在统计上更高 (p < .001).
- 在AS患者中观察到高ROS水平,SNP 16311C与较高ROS生成相关 (p = .043).
结论:
- mtDNA D-loop SNPs可以作为AS风险的潜在生物标志物.
- 增加mtDNA拷贝数和相关的线粒体功能障碍可能会导致AS的发病.
- 这些发现凸显了mtDNA变异和氧化应激在AS发展中的作用.
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