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Together, these results suggest that class I triggering can induce the activity of NF-kappa B/Rel nuclear activity in peripheral blood T lymphocytes , thereby modulating the expression of genes regulated by these transcription factors .
 transcription factors, NF-kappa B/Rel, peripheral blood T lymphocytes
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:
 transcription factors, NF-kappa B/Rel, peripheral blood T lymphocytes