移植后的第三级淋巴体器官
1Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT.
Transplantation
|November 2, 2023
概括
三级淋巴体器官 (TLOs) 在慢性炎症期间形成,是器官移植排斥和耐受性的关键. 本综述详细介绍了它们的特征,诱导和治疗潜力.
科学领域:
- 免疫学 免疫学 免疫学
- 移植生物学 移植生物学
- 病理学 病理学 病理学
背景情况:
- 三级淋巴体器官 (TLOs) 或异位淋巴体结构是慢性炎症期间在正规淋巴体器官外形成的免疫细胞聚合物.
- 它们通过淋巴细胞新生代在包括自身免疫,感染,癌症,衰老和移植在内的条件中产生.
- 本次审查重点关注器官移植背景下的TLOs,称为移植后TLOs (PT-TLOs).
研究的目的:
- 为了比较淋巴结和TLOs关于细胞性,组织,血管和信号.
- 描述各种器官和物种的PT-TLO特征.
- 探索PT-TLOs在移植排斥,耐受性和癌症中的作用.
主要方法:
- 淋巴状结构的比较分析.
- 对各种器官 (心脏,脏,肺部等) 的PT-TLOs现有文献的审查. 和物种 (人类,老鼠等). ) 的情况.
- 检查影响TLO诱导和维护的因素.
主要成果:
- PT-TLOs与淋巴结具有相同的组织和细胞特征,但在异位发生.
- 诱导需要持续的抗原暴露 (合,自动,瘤),缺血或衰老.
- PT-TLOs主要与器官排斥有关,但可以促进耐受性;它们在癌症和淋巴瘤发展中的作用也得到了注意.
结论:
- PT-TLOs是具有复杂作用的动态结构,在移植中发挥复杂的作用,影响排斥和耐受性.
- 了解PT-TLOs为调节移植结果提供了治疗机会.
- 需要进一步的研究来标准化PT-TLOs的分期,成像和治疗向.
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