6708
Colchicine also has antimitotic activity , preventing growth of cancer cells by interacting with microtubules , which could lead to the design of better cancer therapeutics .
 Chemical: Colchicine
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: Colchicine