7924
We have recently established a novel APL cell line ( UF-1 ) with features of RA resistance .
 ( cell line: APL cell line, None) , ( cell line: UF-1, 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: APL cell line, None) , ( cell line: UF-1, None) 