7738
Our results suggest that activation of NF-kappaB occurs through a Tax -independent mechanism in leukemic cells of ATL patients , possibly due to differential NF-kappaB subunit activation .
 ( protein: NF-kappaB, None) , ( cell type: leukemic cells, None) , ( protein: Tax, None) , ( protein: NF-kappaB, 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: NF-kappaB, None) , ( cell type: leukemic cells, None) , ( protein: Tax, None) , ( protein: NF-kappaB, None) 