9757
We also observed comparable induction of genes linked to M1 and M2 responses in wild - type and Nur77 - null macrophages in response to lipopolysaccharides and interleukin ( IL ) - 4 , respectively .
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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