20149
We demonstrate that conditioned media from THP - 1 cells stimulated with crotonaldehyde increased interleukin ( IL ) - 8 production , enhanced nuclear factor ( NF ) - kappa B and AP - 1 DNA - binding activity in BEAS - 2B and A549 cells .
 Chemical: crotonaldehyde
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
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Answer:
 Chemical: crotonaldehyde