7470
We investigated whether E2 and Prog could interfere with TNF-alpha -induced apoptosis of the monoblastoid U937 cell line .
 cell line: monoblastoid U937 cell line; protein: TNF-alpha
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: monoblastoid U937 cell line, TNF-alpha 
Answer:
 cell line: monoblastoid U937 cell line; protein: TNF-alpha