9135
During this process, IL-6 downregulated expression of BCL2 in 1A9-M cells and stimulated BCL-XL expression , but had no effect on p53 , Bax , or Bak gene expression .
 1A9-M cells, IL-6, BCL2
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:
 1A9-M cells, IL-6, BCL2