9521
Using plasmids containing sense or antisense RXR-alpha sequences under the control of an inducible promoter, we generated stably transfected cell lines which expressed either increased or decreased levels of RXR-alpha , respectively.
 ( protein: RXR-alpha, None) , ( DNA: antisense RXR-alpha sequences, None) , ( protein: RXR-alpha, 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: RXR-alpha, None) , ( DNA: antisense RXR-alpha sequences, None) , ( protein: RXR-alpha, None) 