12724
The tissular patterns of CIITA and MHC class II gene expression are tightly correlated: CIITA mRNA is highly expressed in B cells , and is induced by interferon gamma ( IFN-gamma ) in macrophage and epithelial cell lines .
 RNA: CIITA mRNA; protein: IFN-gamma; protein: interferon gamma; cell type: 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: CIITA mRNA, IFN-gamma, interferon gamma, B cells 
Answer:
 RNA: CIITA mRNA; protein: IFN-gamma; protein: interferon gamma; cell type: B cells