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Although we detected no IL-2 mRNA in ALD -treated cells , the nuclei of these cells contain proteins capable of binding to three regulatory sequences in the IL-2 promoter region : NFAT , NF kappa B , and AP-1 .
 IL-2 promoter region, NF kappa B, ALD -treated cells, NFAT, IL-2, regulatory sequences, AP-1, IL-2, IL-2 mRNA
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-2 promoter region, NF kappa B, ALD -treated cells, NFAT, IL-2, regulatory sequences, AP-1, IL-2, IL-2 mRNA