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In this study, we investigated whether these transcription factors become activated under stimulatory conditions which are known to induce gene transcription in neutrophils .
 neutrophils, transcription factors
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:
 neutrophils, transcription factors