2510
The knockdown of robo4 abrogated the chemotactic response of endothelial cells to serum but enhanced a chemokinetic response to Slit2 , while robo1 knockdown cells do not display chemotactic response to serum or VEGF .
 Anatomy: endothelial cells; Anatomy: serum; Anatomy: robo1 knockdown cells; Anatomy: serum
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
 Anatomy: endothelial cells; Anatomy: serum; Anatomy: robo1 knockdown cells; Anatomy: serum