1047
cdc2 mRNA transcripts were detected in immature bone marrow cells and became undetectable along with differentiation.
 cdc2 mRNA, cdc2 mRNA transcripts, immature bone marrow 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:
 cdc2 mRNA, cdc2 mRNA transcripts, immature bone marrow cells