6772
MK571 , an MRP inhibitor , increased both the cell - to - medium ratio of etoposide and the etoposide sensitivity of MRP1 - expressing stomach cancer cell lines .
 Chemical: MK571
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: MK571