92
Cellular and molecular mechanisms of IFN-gamma production induced by IL-2 and IL-12 in a human NK cell line .
 human NK cell line, IL-12, IFN-gamma, IL-2
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:
 human NK cell line, IL-12, IFN-gamma, IL-2