Fig. 1From: The role of the endothelium in asthma and chronic obstructive pulmonary disease (COPD)Transendothelial migration (paracellular): Neutrophil passing along the endothelium before binding to an endothelial cell via adhesion molecules (eg MAC-1). The neutrophil invaginates the endothelial cell membrane before migrating between endothelial cellsBack to article page