7794
The gene expression of interferon (IFN)-inducible protein 10 ( IP-10 ) (a CXC chemokine ) was markedly augmented by the IFNgamma treatment in PMA -or RA -differentiated U937 cells , but only marginally in undifferentiated or VitD3 -treated cells .
 ( protein: CXC chemokine, None) , ( cell line: U937 cells, None) , ( cell line: VitD3 -treated cells, None) , ( protein: IFNgamma, None) , ( protein: IP-10, None) , ( protein: interferon (IFN)-inducible protein 10, 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: CXC chemokine, None) , ( cell line: U937 cells, None) , ( cell line: VitD3 -treated cells, None) , ( protein: IFNgamma, None) , ( protein: IP-10, None) , ( protein: interferon (IFN)-inducible protein 10, None) 