12224
T-lineage precursor populations from the adult mouse thymus , prior to T-cell receptor gene rearrangement , display a capacity to produce DC as well as T cells in the thymus , and are very efficient precursors of DC in culture.
 ( cell type: DC, None) , ( cell type: DC, None) , ( cell type: T cells, 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:
 ( cell type: DC, None) , ( cell type: DC, None) , ( cell type: T cells, None) 