21. The primary target appears to be the vascular endothelial cell. 22. Basement membrane proteins have been found to accelerate differentiation of endothelial cells. 23. Endothelial cells and the Descemets membrane are left in place.24. In contrast, endothelial cells are thought to be of uniform origin. 25. There are several pathways of communication between the endothelial cells and pericytes. 26. In unactivated endothelial cells, it is stored in ?-granules. 27. Blood islands will sprout endothelial projections and these projections will fuse together. 28. Interestingly, attachment of endothelial cells to fibronectin partially reverses this phenomenon. 29. These cell types include monocytes, endothelial cells and fibroblasts. 30. Those infecting the macrophages or endothelial cells develop into megaloschizonts.
