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In a different study, GATA-3 was shown to be sufficient for the expression of IL-4 and other Th2 cytokine genes .
 Th2 cytokine genes, GATA-3, IL-4
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:
 Th2 cytokine genes, GATA-3, IL-4