6501
We investigated the effect of P . urinaria extract ( PUE ) on cell viability , invasion , and migration in the human osteosarcoma Saos - 2 cell line , and looked at the impact of PUE on several relevant proteases and signaling pathways .
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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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