9635
After DMSO treatment, HL-60 cells eventually died via apoptosis , whereas the viability of PDBu -treated cells was not affected during the same interval.
 HL-60 cells, PDBu -treated 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:
 HL-60 cells, PDBu -treated cells