在静态存储期间,捐赠者衍生的乙氨基细胞的激活有助于肺移植后的初级移植功能障碍
Mojtaba Taheri1, Zhongcheng Mei1, Anirban Banerjee1
1Department of Surgery, University of Maryland, Baltimore, Maryland, USA.
概括
与预期相反,捐赠者胆固醇会恶化肺移植损伤. 保存溶液激活乙氨基,导致氧化应激和重温期间的损伤,突出了改善肺部全移植功能的新目标.
科学领域:
- 免疫学 免疫学 免疫学
- 移植生物学 移植生物学
- 器官的保存 器官的保存
背景情况:
- 缺血-再输液损伤 (IRI) 是肺移植后的一个主要并发症.
- 氨基酸在肺异种移植耐受性中起着已知的保护作用.
- 埃索诺菲尔在肺部IRI中的作用以前尚不清楚.
研究的目的:
- 为了研究埃索诺菲尔在肺部IRI中的作用.
- 为了确定捐赠者衍生的乙氨基酸是否会影响肺移植的损伤.
- 在器官保存过程中探索乙氨基酸激活的机制.
主要方法:
- 在同基因和异基因移植模型中评估肺移植.
- 在存储的肺部中评估乙素激活,脱粒化和细胞死亡.
- 在体外研究中,埃索诺菲尔暴露在不同的防腐溶液中.
- 对氧化应激标志物和在再注射时组织损伤的分析.
主要成果:
- 来自捐赠者,而不是来自接受者,升的肺部IRI. 来自捐赠者,而不是来自接受者,升的肺部IRI.
- 低基德克斯基保存溶液中的埃索诺菲尔在重新加热过程中显示出激活,降粒和死亡.
- 在这种特定的保存溶液中,这些乙酸细胞经历了氧化应激.
- 用谷氨补充剂减少了乙氨基的激活和损伤.
结论:
- 捐赠者乙氨基细胞有助于肺部IRI,挑战了以前的假设.
- 特定的防腐溶液可以通过氧化应激诱导氨细胞损伤.
- 在保存过程中准乙素激活提供了一种新的策略,以减轻肺部IRI并改善移植结果.
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