14755
A series of uninfected parental HL-60 subclones all reduced TR75 surface expression in response to TNF-alpha treatment .
 ( cell line: uninfected parental HL-60 subclones, None) , ( protein: TNF-alpha, None) , ( protein: TR75, 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:
 ( cell line: uninfected parental HL-60 subclones, None) , ( protein: TNF-alpha, None) , ( protein: TR75, None) 