作为整个排斥连续性的非侵入性活动读数的捐赠者衍生细胞免费DNA
Louise Benning1, Aylin Akifova2, Bilgin Osmanodja2
1Department of Nephrology, Heidelberg University Hospital, Heidelberg, Germany.
概括
来自捐赠者的无细胞DNA (dd-cfDNA) 追踪移植拒绝的严重程度. 这种非侵入性标志物补充了他的病理学,将拒绝连续概念扩展到血液测试,以更好地监测移植.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學.
- 移植免疫学 移植免疫学
- 分子诊断学 分子诊断学
背景情况:
- 基移植排斥是一种生物连续性,通过组织病理学指数量化.
- 来自捐赠者的无细胞DNA (dd-cfDNA) 是移植健康的潜在非侵入性生物标志物.
研究的目的:
- 为了确定dd-cfDNA是否反映了移植排斥连续.
- 评估dd-cfDNA是否补充了基因病理学衍生的排斥指数.
主要方法:
- 对dd-cfDNA (百分比,绝对拷贝/毫升,联合CM得分) 与两个队列的249个指示活检中的组织病理指数进行分析.
- 类间相关性分析,以评估dd-cfDNA测量和排斥指数之间的关联.
主要成果:
- dd-cfDNA水平随着体病学活动的增加而增加,在抗体介导排斥 (AMR) 和混合排斥中最高.
- 通过T细胞介导的排斥 (TCMR) 显示了更可变的dd-cfDNA,可能是由于总cfDNA的增加.
- 结合的dd-cfDNACM得分显示,与排斥指数的关联最强 (R2=3.4).
结论:
- dd-cfDNA 作为一个非侵入性读出移植全基因炎症.
- dd-cfDNA将拒绝连续概念扩展到非侵入性监测中,补充了他的病理学.
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