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We previously showed that PO-B DNA-binding is progressively induced during differentiation of promyelomonocytic leukemic HL-60 cells to the macrophage-like lineage (with phorbol esters ).
 PO-B, promyelomonocytic leukemic HL-60 cells, macrophage-like lineage
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:
 PO-B, promyelomonocytic leukemic HL-60 cells, macrophage-like lineage