6747
We conclude that downregulation of WT1 during induced differentiation of K562 cells is not a prerequisite for erythroid or megakaryocytic differentiation of these cells.
 K562 cells, WT1
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:
 K562 cells, WT1