24817
Conversely , SB activated p38 MAPK signaling in colorectal adenocarcinoma cells SW480 , and pharmacologic inhibition of p38 MAPK activity revealed its key role in mediating SB - induced caspase - independent cell death .
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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