13305
For this purpose, LNCaP cells were incubated with monocyte-conditioned medium ( MCM ), and proliferation as well as expression of androgen receptor ( AR ) and secretion of prostate-specific antigen ( PSA ) were assessed.
 ( protein: androgen receptor, None) , ( cell line: LNCaP cells, None) , ( protein: AR, None) , ( protein: prostate-specific antigen, None) , ( protein: PSA, 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:
 ( protein: androgen receptor, None) , ( cell line: LNCaP cells, None) , ( protein: AR, None) , ( protein: prostate-specific antigen, None) , ( protein: PSA, None) 