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Updated: Jun 18, 2026
06:42
Murine Skin Transplantation
Published on: January 16, 2008
在移植耐受性方面的进展.
X Yu1, P Carpenter, C Anasetti
1Human Immunogenetics Program, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA.
Lancet (London, England)
|June 27, 2001
概括
目前的免疫抑制药物可以改善器官移植的存活率,但不能诱导耐受性. 针对T细胞死亡和失活的新策略对于实现长期移植耐受性至关重要.
科学领域:
- 免疫学 免疫学 免疫学
- 移植科学 移植科学
背景情况:
- 随着最近的免疫抑制药物,器官异位移植的存活率有所改善,但终身药物治疗仍然是必要的.
- 移植拒绝涉及T细胞激活,抗原识别和辅助信号,T细胞死亡是关键的耐受机制.
研究的目的:
- 探索不同的免疫抑制药物如何影响T细胞介导移植耐受性.
- 通过防止T细胞死亡来抑制耐受性的药物和促进它的药物之间进行区分.
主要方法:
- 对T细胞激活,抗原识别和辅助信号通路的分析.
- 对T细胞死亡 (细胞灭绝) 和T细胞不响应 (无能) 药物影响的评估.
主要成果:
- 诱导T细胞死亡的mycophenolate mofetil等药物可以促进耐受性.
- 抑制T细胞分裂 (例如,用拉巴胺) 或辅助刺激 (例如,阻断CD28/CD154) 可以导致T细胞不响应并促进耐受性.
结论:
- 了解T细胞死亡和失活机制对于开发实现移植耐受性的策略至关重要.
- 针对特定的T细胞通路提供了一个有希望的途径,超越目前的免疫抑制,实现长期的移植接受.
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