20288
Melanoma cells treated with BNCT showed significant extracellular matrix ( ECM ) changes and a significant cyclin D1 decrease , suggesting cell death by necrosis and apoptosis and cell cycle arrest , 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:
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