13489
Interestingly, evidence for the presence of B cells that have already switched to IgE was seen in PBMCs of several patients with asthma or HIE .
 ( cell type: B cells, None) , ( cell type: PBMCs, None) , ( protein: IgE, 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: B cells, None) , ( cell type: PBMCs, None) , ( protein: IgE, None) 