1589
IL-1 receptor and TCR signals synergize to activate NF-kappa B -mediated gene transcription .
 NF-kappa B, TCR, IL-1 receptor
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:
 NF-kappa B, TCR, IL-1 receptor