804
To test this hypothesis more directly , we analyzed whether Eph forward signaling can still suppress BDNF - stimulated IEG induction and growth cone collapse when ERK kinase activity was experimentally raised .
 Anatomy: growth cone
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: growth cone