22910
Gefitinib treatment decreases securin levels at the protein level by inducing protein instability but did not affect on the securin gene expression .
 Chemical: Gefitinib
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: Gefitinib