10485
The recent discovery of the transcription factor nuclear factor kappa B ( NF-kappa B ) is reviewed and several potential pathways for cytokine -induced periodontal tissue damage , mediated by NF-kappa B1 are discussed.
 NF-kappa B1, NF-kappa B, cytokine, transcription factor nuclear factor kappa B
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 B1, NF-kappa B, cytokine, transcription factor nuclear factor kappa B