29036
We also observed that AC caused G2 / M arrest mediated by down - regulation of cyclin D1 , cyclin A , cyclin B1 , and Cdk1 and increased p27 expression .
 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