是否MUC5B rs35705950促进物多态性与慢性肺异位移植功能障碍有关?
Adèle Sandot1,2, Ibrahima Ba1,3, Clément R Massonnaud4,5
1Université Paris Cité, PHERE UMRS 1152, Paris, France.
ERJ open research
|October 29, 2025
概括
肺移植接受者或捐赠者的MUC5B rs35705950多态性不会影响慢性肺移植异位功能障碍 (CLAD) 的结果. 然而,接受者MUC5B基因型可能会降低抗体介导排斥 (AMR) 风险.
科学领域:
- 肺部医学 肺部医学
- 移植免疫学 移植免疫学
- 遗传学 是一个遗传学.
背景情况:
- 慢性肺异位移植功能障碍 (CLAD) 是肺移植 (LT) 后死亡的主要原因.
- 对于CLAD的潜在病理生理学和风险因素尚未完全理解,有来自捐赠者或接受者的潜在遗传影响.
- MUC5B促进体rs35705950多态性是一种已知与肺纤维化相关的遗传因素.
研究的目的:
- 研究肺移植接受者和捐赠者的MUC5B rs35705950多态性之间的关联及其对LT结果的影响.
- 确定这种遗传多态化是否影响了CLAD.的发展或表型.
- 探索MUC5B基因型与抗体介导排斥 (AMR) 的发生之间的潜在相关性.
主要方法:
- 从肺移植生物库中的队列中分析接受者和捐赠者血液样本.
- 使用定量PCR确定MUC5B rs35705950多态状态.
- 在210个接受者-捐赠者对中盲目判断CLAD发生率和表型.
主要成果:
- 在捐赠者或接受者中,MUC5B rs35705950多态性与5年后的CLAD,无CLAD存活率或CLAD表型没有显著的关联.
- 接受者的T等位基因的患病率在不同的潜在呼吸系统疾病 (例如,间歇性肺病,肺气,囊性纤维化) 中有显著的差异.
- 虽然捐赠者的MUC5B基因型没有影响AMR风险,但接受者的T等位基因存在与AMR发生率的减少有关 (OR0.26,p=0.015).
结论:
- 捐赠者或接受者的MUC5B rs35705950多态性似乎不会影响与CLAD相关的整体肺移植结果.
- 接受者的MUC5B多态性和AMR发病率较低之间的潜在保护性关联需要进一步调查和确认.
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