1511
By contrast, treatment of cells with pyrrolidine dithiocarbamate ( PDTC ) will only block LPS -induced NF-kappa B , but not the constitutive binding protein .
 NF-kappa B, LPS -induced NF-kappa B, constitutive binding protein
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, LPS -induced NF-kappa B, constitutive binding protein