Figure 8. Cx37 is expressed in all vascular cells.

(a) In confocal section through an artery, puncta of cx37 (green) were present on endothelial cells (blue). (b) In the same artery, Cx37 was also co-localized on mural cells (magenta). (c) In the cross section of the artery from (a-b) Cx37 was present on both endothelial and contractile cells as reflected by the intensity profile on the right. (d–e) Cx37 was present on the entire membrane of the mural cells. (f–i) Similar to artery, in a capillary Cx43 was expressed in both endothelial and contractile cells. (j–I) In veins the strongest Cx37 labeling was around pericytes. Cx37 puncta were present on endothelial cells. Scale bar 5 μm.