1255
Cross titration analyses of the effects of 9-cis RA and D3 on HL60 cell differentiation were undertaken to determine the boundaries of the concentrations of each agent, alone and in combination, that give rise to optimal neutrophil and monocyte differentiation of HL60 cells .
 cell line: HL60 cells; cell line: HL60 cell
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: HL60 cells, HL60 cell 
Answer:
 cell line: HL60 cells; cell line: HL60 cell