7937
Previous studies have implicated a role for intracellular thiols in the activation of nuclear factor-kappaB and transcriptional regulation of endothelial cell adhesion molecules .
 endothelial cell adhesion molecules, nuclear factor-kappaB
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 cell adhesion molecules, nuclear factor-kappaB