11907
Nuclear factor-kappa B potently up-regulates the promoter activity of RANTES , a chemokine that blocks HIV infection.
 RANTES, Nuclear factor-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:
 RANTES, Nuclear factor-kappa B