9146
IL-8 is secreted in response to inflammatory stimuli , notably bacterial products such as lipopolysaccharide ( LPS ), but little is known about the mechanisms by which these agents mediate IL-8 induction .
 IL-8, IL-8
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:
 IL-8, IL-8