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Analysis of targets that could mediate these phenotypic changes indicated that c-Maf likely plays a key role in myeloid cell development through dual mechanisms; inhibition of a select set of c-Myb regulated targets, such as Bcl-2 and CD13/APN , coupled with the activation of as yet undefined differentiation-promoting genes .
 c-Myb, differentiation-promoting genes, c-Maf, CD13/APN, Bcl-2
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:
 c-Myb, differentiation-promoting genes, c-Maf, CD13/APN, Bcl-2