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Out of the six cell lines tested , ma ' edamines A and B showed significant cytotoxicity against human colon cancer line COLO 205 ( IC ( 50 ) 7 . 9 and 10 . 3 mu M , respectively ) , breast cancer cell line MCF - 7 ( IC ( 50 ) : 6 . 9 and 10 . 5 mu M , respectively ) and human lung adenocarcinoma cell line A549 ( IC ( 50 ) : 12 . 2 and 15 . 4 mu M , respectively ) .
 ma ' edamines A and B
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 ma ' edamines A and B