12763
Flow cytometric and morphological analyses demonstrated that the addition of CD70 transfectants to B cell cultures remarkably promoted differentiation into plasma cells in the presence of IL-4 and CD40 signaling .
 protein: CD40; cell type: plasma cells; cell line: B cell cultures; 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: CD40, plasma cells, B cell cultures, IL-4 
Answer:
 protein: CD40; cell type: plasma cells; cell line: B cell cultures; protein: IL-4