21971
RAW264 . 7 cells were transfected with CD . TNF - alpha siRNA , stimulated with lipopolysaccharide ( LPS ) and TNF - alpha and IL - 6 responses were measured by PCR and ELISA .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None