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Here we demonstrate that the human monocytic M-CSF receptor promoter directs reporter gene activity in a tissue-specific fashion .
 M-CSF receptor, M-CSF, human monocytic M-CSF receptor promoter
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:
 M-CSF receptor, M-CSF, human monocytic M-CSF receptor promoter