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Specifically in prostate cancer models , silibinin has shown the ability to modulate cell signaling , proliferation , apoptosis , epithelial to mesenchymal transition , invasion , metastasis , and angiogenesis , which taken together provides strong support for silibinin as a candidate prostate cancer chemopreventive agent .
 Chemical: silibinin; Chemical: silibinin
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: silibinin; Chemical: silibinin