1906
The CSF - 1 receptor exerts its biological effects on cells via a range of signaling proteins including Erk1 / 2 and Akt .
 Anatomy: cells
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: cells