Effect of high glucose concentrations on expression of ELAM-1, VCAM-1 and ICAM-1 in HUVEC with and without cytokine activation.
Diabetes mellitus is associated with an increased prevalence of endothelial dysfunction and development of atherosclerotic vascular diseases. We demonstrate here that hyperglycemia results in the expression of adhesion molecules on endothelial cells in vitro. Incubation of human umbilical vein endothelial cells (HUVEC) in a culture medium with 11.0 mM, 16.5 mM and 22.0 mM glucose concentrations induced the expression of intercellular adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1) and endothelial-leukocyte adhesion molecule-1 (ELAM-1). This effect was detectable after 24 h incubation of HUVEC with a high glucose concentration. The effect of high glucose concentration on TNF-alpha induced expression of ELAM-1, VCAM-1 and ICAM-1 was negligible, if at all. These results show that even a short-term exposure of endothelial cells (ECs) to high glucose concentration leads to their activation associated with increased expression of adhesion molecules such as ELAM-1, VCAM-1 and ICAM-1.
Second Department of Internal Medicine, Third Faculty of Medicine, Charles University, Czech Republic.
T S
TS
Altannavch
K
K
Roubalová
P
P
Kucera
M
M
Andel
D000970:Antineoplastic Agents / Q000494:pharmacology*; D001161:Arteriosclerosis / Q000378:metabolism; D015815:Cell Adhesion Molecules / Q000378:metabolism*; D002478:Cells, Cultured; D003925:Diabetic Angiopathies / Q000378:metabolism; D019040:E-Selectin / Q000378:metabolism; D004730:Endothelium, Vascular / Q000166:cytology / Q000187:drug effects / Q000378:metabolism*; D005947:Glucose / Q000494:pharmacology*; D006801:Humans; D018799:Intercellular Adhesion Molecule-1 / Q000378:metabolism; D014409:Tumor Necrosis Factor-alpha / Q000494:pharmacology*; D014470:Umbilical Cord / Q000166:cytology; D019010:Vascular Cell Adhesion Molecule-1 / Q000378:metabolism
D000970:Antineoplastic Agents; D015815:Cell Adhesion Molecules; D019040:E-Selectin; D014409:Tumor Necrosis Factor-alpha; D019010:Vascular Cell Adhesion Molecule-1; D018799:Intercellular Adhesion Molecule-1; D005947:Glucose