4465
We also demonstrated that the CMV immediate early 1 gene product increased expression of the IL-6 promoter .
 CMV immediate early 1 gene product, IL-6, IL-6 promoter
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:
 CMV immediate early 1 gene product, IL-6, IL-6 promoter