Syndecan family is expressed in microvasculature of human lung.

Sections of agarose-inflated human lung were stained for each of the four syndecan ectodomains and the endothelial cell marker, PECAM-1. Confocal images demonstrate co-localization of PECAM-1 with all four syndecan ectodomain proteins, indicating expression throughout the pulmonary microvasculature. Scale bars: 100 μm.