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; protein: PKB/Akt; cell line: HCD57 cells; cell line: HCD57-SREI
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: PKB/Akt, PKB/Akt, HCD57 cells, HCD57-SREI 
Answer:
 protein: PKB/Akt; protein: PKB/Akt; cell line: HCD57 cells; cell line: HCD57-SREI