7334
However, we report in vitro experimental studies in which IL-10 primed leukocytes and led to an enhanced production of tumor necrosis factor ( TNF ) upon further stimulation by lipopolysaccharide ( LPS ).
 TNF, tumor necrosis factor, IL-10 primed leukocytes, IL-10
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:
 TNF, tumor necrosis factor, IL-10 primed leukocytes, IL-10