4477
Also, VitD3 inhibited the expression of CD23 and CD49f , characteristic markers of retinoid-induced U-937 cell differentiation .
 protein: CD23; cell line: U-937 cell; protein: CD49f
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: CD23, U-937 cell, CD49f 
Answer:
 protein: CD23; cell line: U-937 cell; protein: CD49f