Complex sentence: As the reservoir of growth factors is removed the endothelial cells do not survive, and undergo caspases induced apoptosis, while other proteases participate in the degradation and removal of the remaining cell debris.
Split into simpler sentences: As the reservoir of growth factors is removed the endothelial cells do not survive, and undergo caspases induced apoptosis. While other proteases participate in the degradation and removal of the remaining cell debris.