14159
Here , we approached the question of senescence evasion by expressing the transcription factor v - myc myelocytomatosis viral oncogene homolog ( c - MYC ) , which is known to act synergistically with many oncogenes , in melanocytes .
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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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