14363
Northern blot analysis revealed in these cells, an increase in the transcription of these two proto-oncogenes , and this increase was amplified after treatment with phorbol myristate acetate .
 ( DNA: proto-oncogenes, 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: proto-oncogenes, None) 