6872
The LY294002 study showed that proliferation and viability of both HCD57-SREI and HCD57 cells correlated with the activity of PKB/Akt ; however, PKB/Akt activity alone did not protect these cells from apoptosis .
 ( protein: PKB/Akt, None) , ( protein: PKB/Akt, None) , ( cell line: HCD57 cells, None) , ( cell line: HCD57-SREI, 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: PKB/Akt, None) , ( protein: PKB/Akt, None) , ( cell line: HCD57 cells, None) , ( cell line: HCD57-SREI, None) 