3986
The recent demonstration that VEGF signaling is modulated by the Notch signaling pathway , however , suggests that inhibiting Notch signaling may enhance regional neovascularization , by altering the responsiveness of local endothelial cells to angiogenic stimuli .
 endothelial cells
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 endothelial cells