Cytokine-activated human endothelial monolayers support enhanced neutrophil transmigration via a mechanism involving both endothelial- leukocyte adhesion molecule-1 and intercellular adhesion molecule-1

• Published in: The Journal of immunology (1950) Vol. 146; no. 5; pp. 1617 - 1625
• Main Authors: Luscinskas, FW, Cybulsky, MI, Kiely, JM, Peckins, CS, Davis, VM, Gimbrone, MA, Jr
• Format: Journal Article
• Language: English
• Published: Bethesda, MD Am Assoc Immnol 01.03.1991; American Association of Immunologists
• Subjects: Antigens, CD - physiology; Biological and medical sciences; CD18 Antigens; Cell Adhesion - physiology; Cell Adhesion Molecules - biosynthesis; Cell Adhesion Molecules - physiology; Cell Movement - physiology; Cell physiology; E-Selectin; Endothelium, Vascular - metabolism; Endothelium, Vascular - physiology; Fundamental and applied biological sciences. Psychology; Humans; In Vitro Techniques; Intercellular Adhesion Molecule-1; Interleukin-1 - physiology; Kinetics; Molecular and cellular biology; Motility and taxis; Neutrophils - physiology; Receptors, Leukocyte-Adhesion - physiology; Human; Translocation; Endothelial cell; Cytokine; Granulocyte; Cell adhesion molecule; Interleukin 1β; Phase contrast microscopy; Adhesion; In vitro; Video recording; Mechanism; Cell motility; Monolayer culture; Neutrophile
• ISSN: 0022-1767; 1550-6606
• DOI: 10.4049/jimmunol.146.5.1617

rIL-1 beta treatment of cultured human endothelial cells (HEC) promotes polymorphonuclear leukocyte (PMN) adhesion and transmigration. Using in vitro quantitative monolayer adhesion and videomicroscopic transmigration assays, we have examined the contributions of endothelial-leukocyte adhesion molecule-1 (ELAM-1), intercellular adhesion molecule-1 (ICAM-1), and the leukocyte adhesion complex, CD11/CD18, to these processes. Maximal enhancement of PMN adhesion and transmigration were observed after 4 h of rIL-1 beta treatment, when surface expression of ELAM-1 had peaked and ICAM-1 was modestly increased. Blocking mAb directed to either ELAM-1 or ICAM-1 inhibited greater than 90% of the up-regulated PMN transmigration. Blocking mAb directed to either CD11a/CD18 (LFA-1, a ICAM-1 counter-receptor), CD11b/CD18 (Mo-1), or CD18 (common beta 2-integrin) also blocked greater than 90% of PMN transmigration. At later time points (24 or 48 h), ELAM-1 surface expression was markedly decreased, whereas ICAM-1 expression was increased over the 4-h level; PMN adhesion remained elevated (approximately 50 to 60% of 4 h level), but transmigration returned to levels seen with unactivated HEC. These data indicate that PMN interaction with at least two distinct HEC adhesion molecules is necessary for transendothelial migration and suggests that PMN adhesion and transmigration, although interrelated, are mechanistically distinct processes.