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Both drugs dose-dependently inhibited LPS -induced TF and TNF-alpha synthesis at the mRNA and the protein level , and reduced PGE2 production .
 TNF-alpha, PGE2, mRNA, LPS -induced TF
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:
 TNF-alpha, PGE2, mRNA, LPS -induced TF