14651
Addition of TPA causes an otherwise ineffective dose of 1,25-dihydroxy vitamin D3 to induce differentiation.
 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:
 None