8566
These data demonstrate that PBMC differentially regulate basal HTLV-I transcription compared with Jurkat T cells , and this differential regulation is due, in part to differential phosphorylation and binding of CREB/ATF-1 to TRE-1 in the HTLV-I promoter.
 CREB/ATF-1, Jurkat T cells, PBMC, TRE-1
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:
 CREB/ATF-1, Jurkat T cells, PBMC, TRE-1