28833
We further investigated the effects of PI3K / Akt signaling on the Wnt / beta - catenin signaling pathway , since beta - catenin takes a central role in this signaling pathway .
 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