Starzl Transplantation Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA.
Transplantation. 2009 Aug 15;88(3 Suppl):S40-4. doi: 10.1097/TP.0b013e3181af7c0d.
Studies on liver interstitial dendritic cells (DC) indicate that the maturation and function of these important antigen-presenting cells may be suppressed by continual exposure to microbial products from the gut, in particular, bacterial lipopolysaccharide. New evidence is emerging for a role of specific intracellular regulators of signal transduction and of cytokines in the hepatic microenvironment, which may contribute to a hyporesponsive state in liver DC. Analysis of signaling molecule expression within DC in liver transplant tissue is likely to uncover its relation to allograft outcome.
对肝脏间质树突状细胞 (DC) 的研究表明,这些重要抗原呈递细胞的成熟和功能可能会受到持续暴露于肠道微生物产物的抑制,特别是细菌脂多糖。新的证据表明,细胞内信号转导和细胞因子的特定调节剂在肝脏微环境中可能发挥作用,这有助于肝脏 DC 处于低反应状态。分析肝移植组织中 DC 内信号分子的表达可能揭示其与移植物结局的关系。