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Helenalin increased apoptosis in dose dependent manner in Caki cells , and also induced apoptosis in other carcinoma cells , such as human renal carcinoma ACHN cells , human colon carcinoma HT29 and HCT116 cells .
 Chemical: Helenalin
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: Helenalin