16309
The fusion protein inhibited the activation of pro - MMP - 2 in the concanavalin A - stimulated HT1080 cells , degradation of type IV collagen by the cells , and the migration of stimulated cells .
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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