人类T细胞激活和肝炎的跨物种转录组概况在异源移植对宿主疾病模型中
Seo Yule Jeong1, Duhyeon Park2, Tamina Park2
1Department of Advanced Toxicology Research, Korea Institute of Toxicology, Daejeon, 34114, Republic of Korea.
Heliyon
|December 17, 2024
概括
异种移植导致急性移植对宿主疾病 (aGvHD) 和肝损伤. 这项研究确定了人类T细胞和小鼠肝细胞中涉及aGvHD诱导的肝损伤的特定基因通路.
科学领域:
- 免疫学 免疫学 免疫学
- 移植生物学 移植生物学
- 肝病学 肝病学是一种肝病学.
背景情况:
- 异种移植可以导致急性移植对宿主疾病 (aGvHD),这是一个严重的并发症,导致重要器官损伤.
- 肝损伤是aGvHD的一个重大问题,需要对其机制有更深入的了解.
研究的目的:
- 用小鼠模型研究aGvHD引起的肝损伤.
- 在aGvHD.期间分析人类细胞和小鼠肝细胞中的基因表达特征.
主要方法:
- 在免疫缺陷NSG小鼠中通过移植人类外周血液单核细胞 (PBMCs) 来建立异源GvHD模型.
- 利用组织病理学和RNA测序来比较aGvHD模型小鼠 (BP组) 与对照小鼠.
- 分析了人类T细胞和小鼠肝细胞中的基因表达变化.
主要成果:
- 在BP组中观察到aGvHD症状,包括肝细胞亡和胆道增生.
- 在人类细胞中对T细胞分化,TCR信号传递,IL-1通路和细胞周期基因的升级.
- 在小鼠肝细胞中,上调的基因包括细胞因子,它们的受体和粘附分子,而染色体凝聚和代谢的基因被下调.
- 跨物种基因网络分析通过炎症和代谢途径将激活的人类T细胞与肝损伤联系起来.
结论:
- 活化的人类T细胞通过炎症和代谢变化导致aGvHD肝损伤.
- 该研究提供了GvHD病理生理学和肝损伤的潜在生物标志物的见解.
- 这些发现可能有助于开发GvHD的新治疗策略.
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