Stimulation of adhesion molecule expression by Helicobacter pylori and increased neutrophil adhesion to human umbilical vein endothelial cells

FEBS Letters

Murphy, J.F¹  Sheehan, K.M¹  Murray, F.E¹  Atherton, J.C²  Fitzgerald, D.J¹  Corcoran, P.A¹  Byrne, M.F¹ 

[1] Department of Clinical Pharmacology, Royal College of Surgeons in Ireland, Dublin, Ireland;Department of Gastroenterology, Nottingham, UK

关键词: Endothelial;    Selectin;    Adhesion molecule;    Neutrophil;    Helicobacter pylori;    HUVEC;    human umbilical vein endothelial cells;    PMN;    polymorphonuclear leukocytes;    ICAM;    intercellular adhesion molecule;    VCAM;    vascular adhesion molecule;    ANOVA;    analysis of variance;    IL;    interleukin;    MPO;    myeloperoxidase;    LPS;    lipopolysaccharide;    FBS;    foetal bovine serum;    HBSS;    Hanks’ balanced salt solution;    PBS;    phosphate-buffered saline;   

DOI  :  10.1016/S0014-5793(02)03728-6

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

Helicobacter pylori upregulates endothelial adhesion molecules but the pattern is unclear. Human umbilical vein endothelial cells (HUVEC) were exposed to control medium or H. pylori 60190. Binding of monoclonal antibodies against P-selectin, E-selectin, vascular adhesion molecule-1 (VCAM-1) and intercellular adhesion molecule-1 (ICAM-1) was determined using enzyme-linked immunosorbent assay. Binding of polymorphonuclear leukocytes to HUVEC was determined on cells exposed as above. After 6 h exposure to H. pylori, there were 30%, 124%, 167% and 100% increases in P-selectin, E-selectin, VCAM-1 and ICAM-1 levels and a 400% increase in polymorphonuclear leukocyte adhesion in HUVEC exposed to H. pylori. Effects of incubation for other intervals between 0 and 18 h are also described. H. pylori exerts some of its effects on gastric mucosa via gastric vasculature. This study gives insight into the pattern of H. pylori-associated endothelial adhesion molecule upregulation.

【 授权许可】

Unknown