14201
Transcriptional activation of the macrophage colony-stimulating factor gene by IL-2 is associated with secretion of bioactive macrophage colony-stimulating factor protein by monocytes and involves activation of the transcription factor NF-kappa B .
 macrophage colony-stimulating factor gene, monocytes, NF-kappa B, transcription factor, macrophage colony-stimulating factor protein, IL-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:
 macrophage colony-stimulating factor gene, monocytes, NF-kappa B, transcription factor, macrophage colony-stimulating factor protein, IL-2