5716
The CB ( 2 ) receptor - mediated upregulation of beta - Arrestin 2 would be mediated , at least in part , by an ERK1 / 2 - dependent activation of AP - 1 .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None