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We previously established a critical role for the transcription factor GATA-3 in IL-5 promoter activation in EL-4 cells , which express both Th1- and Th2- type cytokines .
 IL-5, transcription factor, IL-5 promoter, EL-4 cells, GATA-3
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:
 IL-5, transcription factor, IL-5 promoter, EL-4 cells, GATA-3