531
The use of interferon-gamma-treated U937 cells in chemiluminescence assays to detect red cell , platelet and granulocyte antibodies of potential clinical significance.
 cell line: interferon-gamma-treated U937 cells
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 cell line: interferon-gamma-treated U937 cells