7663
However , the effects of OP on cell growth or overexpression of cathepsins by inhibiting ER - mediated signaling were abolished by an ER antagonist and siRNA specific for ER alpha .
 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