11168
AP-1 derived from mature monocytes and astrocytes preferentially interacts with the HTLV-I promoter central 21 bp repeat .
 astrocytes, HTLV-I promoter, AP-1, 21 bp repeat, mature monocytes
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:
 astrocytes, HTLV-I promoter, AP-1, 21 bp repeat, mature monocytes