6508
However, cytokine-induced NF-kappaB activation and VCAM-1 expression are blocked by both PDTC and NAC .
 VCAM-1, NF-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:
 VCAM-1, NF-kappaB