14927
The zinc finger transcription factor Egr-1 is essential for and restricts differentiation along the macrophage lineage .
 zinc finger, Egr-1, zinc finger transcription factor, macrophage 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:
 zinc finger, Egr-1, zinc finger transcription factor, macrophage lineage