29609
MYCN was found to recruit HDAC2 in the same complexes to the miR - 183 promoter , and HDAC2 depletion enhanced promoter - associated histone H4 pan - acetylation , suggesting epigenetic changes preceded transcriptional activation .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
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