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Within 2 to 4 h of PMA exposure , steady state levels of TNF mRNA are markedly elevated in all myelomonocytic cell lines studied.
 protein: TNF; cell line: myelomonocytic cell lines; RNA: TNF mRNA
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: TNF; cell line: myelomonocytic cell lines; RNA: TNF mRNA