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Malignant cells often display defects in autophagy , an evolutionarily conserved pathway for degrading long - lived proteins and cytoplasmic organelles .
 Malignant cells, cytoplasmic organelles
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 Malignant cells, cytoplasmic organelles