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Notably , the activated caspases that appeared with luteolin treatment cleaved Beclin - 1 , and the expression of LC3II remained the same even after cells were challenged with Beclin - 1 siRNA , demonstrating that luteolin induces Beclin - 1 - independent autophagy .
 luteolin, luteolin
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 luteolin, luteolin