7060
With MTT cell viability assay , LDH release , ROS generation , caspase - 3 activity assay and Hoechst 33342 / PI staining , we found that Sal B pretreatment provided significantly protection against ATO - induced cell death .
 Chemical: MTT; Chemical: Hoechst 33342; Chemical: Sal B; Chemical: ATO
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: MTT; Chemical: Hoechst 33342; Chemical: Sal B; Chemical: ATO