4169
Furthermore , ERK phosphorylation was substantially prolonged in LC / BRY - treated cells compared to those exposed to BRY alone , and pretreatment with the highly specific MEK inhibitors , PD98059 , U0126 , and SL327 , opposed ERK activation while protecting cells from LC / BRY - induced lethality .
 GENE: ERK; GENE: MEK; GENE: ERK
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: ERK; GENE: MEK; GENE: ERK