3459
LeTx also substantially inhibited the extracellular release of angioproliferative factors including vascular endothelial growth factor , interleukin - 8 , and basic fibroblast growth factor .
 extracellular
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 extracellular