13662
The ML-1 human myeloblastic leukemia cells used in this study proliferate when treated with insulin-like growth factor I and transferrin but differentiate to monocytes when exposed to tumor necrosis factor alpha or transforming growth factor beta1 , or to macrophage-like cells when treated with both these cytokines .
 monocytes, transferrin, insulin-like growth factor I, tumor necrosis factor alpha, macrophage-like cells, ML-1 human myeloblastic leukemia cells, transforming growth factor beta1, cytokines
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:
 monocytes, transferrin, insulin-like growth factor I, tumor necrosis factor alpha, macrophage-like cells, ML-1 human myeloblastic leukemia cells, transforming growth factor beta1, cytokines