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Activation of the IL-6 promoter by LTB4 was not only associated with accumulation of the respective transcripts but resulted in synthesis of functional IL-6 protein as well.
 protein: IL-6 protein; protein: IL-6; protein: IL-6; DNA: IL-6 promoter
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 protein: IL-6 protein; protein: IL-6; protein: IL-6; DNA: IL-6 promoter