412
Two to 4 h following LPS addition to endothelial cells , when NF-kappa B was already activated, addition of rBPI21 resulted in marked reduction of NF-kappa B detectable at 4 or 6 h.
 endothelial cells, rBPI21, NF-kappa B, 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:
 endothelial cells, rBPI21, NF-kappa B, NF-kappa B