21. The inner surface of the blood vessel consists of endothelial cells . 22. Endothelial cells , which have large fenestrae, are not covered by diaphragms.23. The blood vessels'walls are composed of normal, noncancerous cells known as endothelial cells . 24. Endothelial cell loss may be aggravated or accelerated by intraocular trauma or surgery.25. Soluble and transmembrane SCF is produced by fibroblasts and endothelial cells . 26. Interestingly, attachment of endothelial cells to fibronectin partially reverses this phenomenon. 27. Within the toad they replicate within the endothelial cells and erythrocytes. 28. If the entire eye is endothelial cells are counted underneath a specular microscope. 29. This gene encodes a protein that may regulate endothelial cell differentiation. 30. Nestin is an angiogenesis marker of proliferating endothelial cells in colorectal cancer tissue.