1382
Human tumor necrosis factor alpha gene regulation in phorbol ester stimulated T and B cell lines .
 protein: tumor necrosis factor alpha
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: tumor necrosis factor alpha