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The efficacy of the activated LN cells is augmented when the sensitizing tumor is a genetically modified variant (designated D5G6 ) that secretes granulocyte/macrophage-colony-stimulating factor .
 genetically modified variant, activated LN cells, granulocyte/macrophage-colony-stimulating factor, LN cells, D5G6
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 genetically modified variant, activated LN cells, granulocyte/macrophage-colony-stimulating factor, LN cells, D5G6