14895
Here we report that this interference is cell specific, as TPA augmented dexamethasone -induced transcriptional activation of the MMTV LTR in several T cell lines but was inhibitory in NIH-3T3 fibroblasts .
 ( DNA: MMTV LTR, None) , ( cell line: T cell lines, None) , ( cell line: NIH-3T3 fibroblasts, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( DNA: MMTV LTR, None) , ( cell line: T cell lines, None) , ( cell line: NIH-3T3 fibroblasts, None) 