4749
ML-9 had little or no effect on the morphology of U937 cells but increased the expression of monocyte-macrophage lineage-associated surface antigen , CD14 , to some extent.
 CD14, monocyte-macrophage lineage-associated surface antigen, U937 cells
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 CD14, monocyte-macrophage lineage-associated surface antigen, U937 cells