539
In contrast, monocytes and IFN-U937 cells responded only weakly to red cells sensitized with either anti-D in sera from mothers of babies unaffected by HDN , or with antisera containing high titre antibodies with specificities not normally associated with significantly reduced red cell survival .
 cell type: monocytes; cell line: IFN-U937 cells; cell type: red cell; protein: anti-D; cell type: red cells; protein: high titre antibodies
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 type: monocytes; cell line: IFN-U937 cells; cell type: red cell; protein: anti-D; cell type: red cells; protein: high titre antibodies