834
STMN1 knockdown by small - interfering RNA in melanoma cells drastically repressed cell proliferation and migration potential , whereas ectopic expression of STMN1 using lentivirus increased cell proliferation and migration rates .
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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