12099
Changes in this regulatory network may reflect differentiation and proliferation adjustments made in hemo-lymphoid progenitors and precursors as they give rise to the cells of our immune system .
 ( cell type: hemo-lymphoid progenitors, None) , ( cell type: precursors, 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: hemo-lymphoid progenitors, None) , ( cell type: precursors, None) 