1127
HIV production by PMA -stimulated T-cell lines was inhibited by these retinoids .
 ( cell line: PMA -stimulated T-cell lines, None) , ( cell line: T-cell lines, 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:
 ( cell line: PMA -stimulated T-cell lines, None) , ( cell line: T-cell lines, None) 