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THP decreased the concentration of the transcription factors NF-kappa B and AP-1 detected in nuclear extracts of PBMC cultured in the presence or absence of LPS .
 AP-1, transcription factors, PBMC, NF-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:
 AP-1, transcription factors, PBMC, NF-kappa B