16342
IL - 6 up - regulation was moreover associated with NF - kappa B activation and was abolished by using chemical NF - kappa B inhibitors or knocking - down expression of the p65 / RelA NF - kappa B subunit .
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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