9945
A thiol antioxidant regulates IgE isotype switching by inhibiting activation of nuclear factor-kappaB .
 protein: IgE isotype; protein: nuclear factor-kappaB
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: IgE isotype, nuclear factor-kappaB 
Answer:
 protein: IgE isotype; protein: nuclear factor-kappaB