6145
We propose that neutrophils use both ERK-dependent and ERK-independent pathways to phosphorylate Ser-727 on STAT3 .
 cell type: neutrophils; protein: STAT3
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: neutrophils, STAT3 
Answer:
 cell type: neutrophils; protein: STAT3