2511
All cases tested (6/20), including the case with t(11;17) , failed to differentiate in vitro in response to all-trans retinoic acid ( ATRA ), suggesting that these cases may account for some APLs that have not shown a clinical response to ATRA .
 ( DNA: t(11;17), 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:
 ( DNA: t(11;17), None) 