566
However, TGF-beta 1 did not induce dephosphorylation of pRb in EBV (or LMP-1 )-positive cells as opposed to EBV -negative cells , suggesting a dichotomy in the TGF-beta 1 signaling pathway leading to separable gene regulatory and growth inhibitory responses .
 ( cell line: EBV -negative cells, None) , ( protein: TGF-beta 1, None) , ( cell line: EBV (or LMP-1 )-positive cells, None) , ( protein: TGF-beta 1, None) , ( protein: LMP-1, None) , ( protein: pRb, 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: EBV -negative cells, None) , ( protein: TGF-beta 1, None) , ( cell line: EBV (or LMP-1 )-positive cells, None) , ( protein: TGF-beta 1, None) , ( protein: LMP-1, None) , ( protein: pRb, None) 