14931
Egr-1 antisense oligomers in the culture media blocked macrophage differentiation in both myeloid leukemia cell lines and normal myeloblasts .
 ( protein: Egr-1, None) , ( cell type: myeloblasts, None) , ( cell line: myeloid leukemia cell lines, 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: Egr-1, None) , ( cell type: myeloblasts, None) , ( cell line: myeloid leukemia cell lines, None) 