Intercellular immune adhesion molecules in human liver transplants: Overview on expression patterns of leukocyte receptor and ligand molecules

Intercellular immune adhesion molecules in human liver transplants: Overview on expression patterns of leukocyte receptor and ligand molecules
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人肝移植中的细胞间免疫粘附分子:白细胞受体和配体分子表达模式概述

DOI:
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发表时间:
1993
期刊:
影响因子:
13.5
通讯作者:
R. Pichlmayr
R. Pichlmayr
中科院分区:
医学1区
文献类型:
--
作者:
Prof. Dr. med. Gustav Steinhoff;M. Behrend;B. Schrader;R. Pichlmayr

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近来发现,免疫细胞对靶细胞和细胞外基质的炎症反应受多种受体-配体分子的调节。介导细胞间黏附和激活过程的分子主要有三类:整合素、免疫球蛋白和选择素家族。本研究调查了人肝移植物中驻留细胞和浸润性细胞上黏附分子的表达。描述了移植物在不同病理条件下的细胞表达模式和可诱导性。我们的结果表明,在同种异体反应和其他类型的炎症反应中,不同的黏附分子对器官的调节是特定的。与再灌注损伤或感染性移植物炎症相比,没有检测到排斥反应的特异性模式。在内皮细胞和实质细胞、细胞-细胞和细胞-基质黏附分子的表达方面,门静脉和肝窦的组成有很大的不同。血管内和间质中白细胞黏附受体表达模式的差异支持逐步表达的概念。文中还讨论了免疫抑制和治疗干预对人体肝脏炎症反应的影响。(《肝病》1993;18:440-453)。
Recently it has become clear that the inflammatory response of immune cells to target cells and extracellular matrix is regulated by several receptor‐ligand molecules. Three main classes of molecules mediating intercellular adhesion and activation processes have been identified: the integrin, immunoglobulin and selectin families. This study surveys the expression of adhesion molecules on resident and infiltrating cells in human liver grafts. The patterns of cellular expression and inducibility in different pathological conditions of the graft are described. Our results show organ‐specific regulation of the different adhesion molecules during alloreactive reactions and other types of inflammatory reactions. No rejection‐specific patterns were detected on comparison with reperfusion damage or infectious transplant inflammation. Major differences were noted in the composition of the portal tract and sinusoid with regard to endothelial and parenchymal cell expression of cell‐cell and cell‐matrix adhesion molecules. Intravascular and interstitial differences in the expression patterns of leukocyte adhesion receptors support a concept of stepwise expression. The implications for the appearance of inflammatory reactions in human liver in immunosuppressive and therapeutic interventions are discussed. (HEPATOLOGY 1993;18:440–453).
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发表时间: 1992
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