在接受男性肝脏的人类雌性接受者中发生的系统性嵌合症
T E Starzl1, A J Demetris, M Trucco
1Pittsburgh Transplant Institute, PA.
Lancet (London, England)
|October 10, 1992
概括
器官移植耐受性与平衡的免疫细胞混沌有关. 来自男性捐赠者的女性肝移植接受者在组织中显示了持续的Y染色体DNA,表明长期的免疫细胞共享和移植接受.
科学领域:
- 免疫学 免疫学 免疫学
- 移植科学 移植科学
- 遗传学 是一个遗传学.
背景情况:
- 器官移植的成功取决于免疫耐受性.
- 之前的研究表明,淋巴干细胞的化学反应是移植接受的关键.
- 这项研究调查了人类肝脏全移植接受者的奇默主义.
研究的目的:
- 为了进一步证明平衡的淋巴结膜细胞合体性促进器官耐受性的假设.
- 为了调查长期接受人体肝脏杂种移植的接受者中嵌合体的存在和程度.
主要方法:
- 对HLA不匹配的肝脏全移植接受者 (女性接受者,男性捐赠者) 的分析.
- 在现场杂交和分子技术来检测来自供体的细胞 (Y染色体).
- 检查所有移植,肝外组织,血液,皮肤和淋巴结.
主要成果:
- 所有9名女性接受者在移植和肝外组织中都表现出嵌合体,移植后10-19年.
- 在接受者血液,皮肤和淋巴结中检测到具有良好的移植功能的Y染色体DNA.
- 在一个移植失败的患者的各种组织中也发现了化学反应,这表明持续的细胞迁移.
结论:
- 长期的奇默现象存在于肝脏杂种移植接受者中,支持其在免疫耐受性中的作用.
- 肝脏丰富的迁移细胞群可能有助于其独特的耐受性.
- 这些发现强化了免疫细胞交换对成功移植的重要性.
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