在人类肺移植中,慢性肺全移植功能障碍病理谱
Benjamin Renaud-Picard1, Gregory Berra2, David Hwang3
1Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, Toronto, Ontario, Canada; Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada; INSERM Unité Mixte de Recherche 1260, Regenerative Nanomedicine, University of Strasbourg, Strasbourg, France.
概括
慢性肺异位移植功能障碍 (CLAD) 涉及呼吸道和肺部的变化,支气管炎消灭综合征 (BOS) 和限制性异位移植综合征 (RAS) 之间存在显著的重叠. 组织学评估有助于理解这些复杂的肺移植并发症.
科学领域:
- 肺部医学 肺部医学
- 移植免疫学 移植免疫学
- 病理学 病理学 病理学
背景情况:
- 肺移植 (LTx) 后的长期存活率受到慢性肺全移植功能障碍 (CLAD) 的限制.
- CLAD包括支气管炎消灭综合征 (BOS) 和限制性全移植综合征 (RAS),通常具有重叠的特征.
- 了解BOS和RAS之间的病理差异和相似之处对于改善患者的治疗结果至关重要.
研究的目的:
- 详细和量化CLAD亚型,特别是BOS和RAS的病理特征.
- 为了比较CLAD亚型和控制肺样本之间的组织学发现.
- 研究特定病理变化与CLAD表型之间的相关性.
主要方法:
- 分析了从20名接受再移植的CLAD患者和13名对照肺样本的肺样本.
- 呼吸道和肺部纤维变化以及上皮和血管异常的盲目半定量分类.
- 免疫光染色以评估细胞频率和亡.
主要成果:
- 与对照组相比,CLAD样本的气道和肺部参数得分明显高.
- 基因组学得分显示,BOS和RAS之间存在相当大的重叠,RAS显示出较高的体和血管纤维化.
- 在气道炎症,上皮细胞变化和气道纤维化之间发现了积极的相关性; BOS样本显示出更高频率的亡俱乐部细胞.
结论:
- CLAD代表了一系列影响呼吸道,胸膜和胸膜的纤维和炎症变化,BOS和RAS之间有显著的重叠.
- 开发的半定量分级得分显示了高的读者之间的可靠性.
- 这种分级得分可能成为未来对CLAD的组织学评估的宝贵工具.
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