2077
Another limitation is that antioxidant concentrations high enough to block NK-kappa B activation were shown to have a suppressive effect on immune functions in vitro , because NAC and BHA blocked IL-2 -induced PBMC proliferation .
 protein: NK-kappa B; protein: IL-2; cell type: IL-2 -induced PBMC
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: NK-kappa B, IL-2, IL-2 -induced PBMC 
Answer:
 protein: NK-kappa B; protein: IL-2; cell type: IL-2 -induced PBMC