21870
The growth of HepG2 and Bel - 7404 cells was suppressed by the up - regulation of a subunit of PI3K and phospho - PTEN , which are modulators of AKT activity .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None