25061
Hepatic stellate cell ( HSC ) activation and transdifferentiation into hepatic myofibroblast , accompanied with potent pro - inflammatory and pro - fibrogenic activities and the down - regulation of anti - inflammatory anti - fibrogenic in gene expression in coordination with epigenetic modifications at the level of the chromatin structure , are pivotal events in liver fibrogenesis .
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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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