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唾液粘素度的遗传调节者及其与COPD表型的关联
Eric Van Buren1,2, Giorgia Radicioni3, Sarah Lester4
1Department of Biostatistics, University of North Carolina, Chapel Hill, North Carolina, United States of America.
PLoS genetics
|June 23, 2023
概括
遗传变异影响慢性阻塞性肺病 (COPD) 中的唾液粘素度. 一种特定的MUC5B变异 (rs140324259) 与慢性支气管炎 (CB) 和急性恶化 (AE) 的风险增加有关.
科学领域:
- 肺部医学 肺部医学
- 遗传学 是一个遗传学.
- 呼吸道疾病 呼吸道疾病
背景情况:
- 粘液的过度分泌是COPD等阻塞性肺部疾病的标志.
- 粘真蛋白 (MUC5AC,MUC5B) 是粘液的关键组成部分,与COPD表型有关.
- 遗传变异对粘素度和COPD表型的影响尚未完全理解.
研究的目的:
- 为了识别影响唾液粘素度 (MUC5AC,MUC5B) 的遗传变异 (pQTL).
- 确定这些粘素pQTL是否与COPD表型相关,特别是慢性支气管炎 (CB) 和急性恶化 (AE).
主要方法:
- 在SPIROMICS中进行全基因组关联研究 (GWAS),以寻找pQTL.
- 回归建模用于测试pQTL和CB/AE表型之间的关联.
- 使用COPDGene和英国生物库数据进行复制分析.
主要成果:
- 确定了MUC5AC (rs75401036) 和MUC5B (rs140324259,rs10001928) 的全基因组显著的pQTL.
- 在MUC5B pQTL rs140324259解释了14%的唾液MUC5B变异.
- 在英国生物银行中,rs140324259的C等位基因与CB和AE的风险增加,以及慢性粘液产生和咳有关.
结论:
- 唾液中MUC5AC和MUC5B度受到常见遗传变异的影响.
- 顶部MUC5B位点 (rs140324259) 可能在COPD表型,特别是慢性支气管炎中发挥作用.
- 对COPD中粘液过分分泌的遗传贡献的进一步研究是有必要的.
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