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We provide evidence that in monocytes as well as in T lymphocytes both IL-4 and IL-13 activate the same recently identified transcription factor NF-IL4 which binds to the specific responsive element IL-4RE .
 NF-IL4, IL-4, IL-13, transcription factor, T lymphocytes, specific responsive element IL-4RE
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-IL4, IL-4, IL-13, transcription factor, T lymphocytes, specific responsive element IL-4RE