12559
Chemical inhibition of Mothers against decapentaplegic homolog 2 / 3 ( SMAD2 / 3 ) signaling or SMAD2 / 3 gene silencing revealed that both SMADs contributed to cell survival .
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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:
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