666
In the examination of the induction of autoimmunity in transgenic mice , evidence has been obtained further implicating the lymphokine interferon-gamma in the etiology of autoimmunity .
 protein: interferon-gamma; protein: lymphokine
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: interferon-gamma; protein: lymphokine