4666
After 20 h of stimulation with 8-bromo-cAMP , AR mRNA was upregulated in LNCaP but not in either PC-3 or DU-145 cell lines .
 ( RNA: AR mRNA, None) , ( cell line: PC-3, None) , ( cell line: DU-145 cell lines, None) , ( cell line: LNCaP, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( RNA: AR mRNA, None) , ( cell line: PC-3, None) , ( cell line: DU-145 cell lines, None) , ( cell line: LNCaP, None) 