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NF-IL6 is an important transcriptional regulator of genes induced in activated monocytes/ macrophages , and NF-IL6 is the only CCAAT/enhancer-binding protein (C/EBP) family member whose steady-state mRNA levels increase upon activation of monocytes (1).
 NF-IL6, monocytes, CCAAT/enhancer-binding protein (C/EBP) family, NF-IL6, macrophages, activated monocytes/ macrophages
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:
 NF-IL6, monocytes, CCAAT/enhancer-binding protein (C/EBP) family, NF-IL6, macrophages, activated monocytes/ macrophages