4866
We conclude that soluble TNF receptors can inhibit stimuli-induced HIV-1 expression and NK- kappa B DNA-binding activity in chronically infected U1 cells .
 ( protein: NK- kappa B, None) , ( cell line: U1 cells, None) , ( cell type: infected U1 cells, 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: NK- kappa B, None) , ( cell line: U1 cells, None) , ( cell type: infected U1 cells, None) 