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Taken together, this study shows that RA inhibits IgE production of anti-CD40 + IL-4 -stimulated B cells in vitro.
 protein: IgE; protein: anti-CD40; protein: IL-4; cell line: anti-CD40 + IL-4 -stimulated B cells
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, anti-CD40, IL-4, anti-CD40 + IL-4 -stimulated B cells 
Answer:
 protein: IgE; protein: anti-CD40; protein: IL-4; cell line: anti-CD40 + IL-4 -stimulated B cells