21.   Clusters of eternally youthful endothelial cells, from the protective lining in arteries, are thriving in the Geron lab.

22.   In addition to these so-called tight junctions, the lining cells, called endothelial cells, have far fewer of the porelike openings in other capillaries.

23.   Okano has mimicked the structure of the liver with alternating sheets of hepatocytes and endothelial cells.

24.   One way may be to alter pig endothelial cells so they are not recognized by human immune cells involved in DXR.

25.   Some of the cells showed a genetic predilection for becoming blood vessel cells, or endothelial cells.

26.   Some believe it generates oxygen-free radicals that damage the endothelial cells that line blood vessels, leading to clots and clogs.

27.   The blood-brain barrier is a single layer of tile-like endothelial cells that line the inner walls of capillaries in the brain.

28.   The new drug, combretastatin, destroys endothelial cells lining the blood vessels which supply the tumor.

29.   The marrow cells were a specific type that are precursors of the endothelial cells which are critical to the formation of new blood vessels.

30.   The researchers have implanted the engineered liver tissues into mice to see if the endothelial cells can form capillaries.