29160
Human HSC LX - 2 cells were activated after cultured for 24 hrs , as indicated by expression of alpha - smooth muscle actin ( alpha - SMA ) and collagen - I , and depressed expression of collagenases .
 None
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