5612
This inhibition was associated with decreased tyrosine phosphorylation and nuclear translocation of STAT6 and was not evident unless the cells were preincubated with IFN for at least 1 hr before IL-4 stimulation .
 protein: IFN; protein: STAT6; protein: IL-4
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: IFN, STAT6, IL-4 
Answer:
 protein: IFN; protein: STAT6; protein: IL-4