8910
The problem of the neuro-immuno interactions on the level of the protein trans-factors , stimulating interleukin-2 ( IL-2 ) gene expression was discussed.
 protein trans-factors, interleukin-2, IL-2, interleukin-2 ( IL-2 ) gene
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:
 protein trans-factors, interleukin-2, IL-2, interleukin-2 ( IL-2 ) gene