1387
Therefore, TNF-alpha mRNA induction by PMA , like its induction by virus and LPS , is not primarily mediated by NF-kappa B , but rather is mediated through other sequences and protein factors .
 protein: TNF-alpha; protein: protein factors; protein: NF-kappa B; RNA: TNF-alpha 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-alpha; protein: protein factors; protein: NF-kappa B; RNA: TNF-alpha mRNA