5469
It is well established that the two major glial cells in the central nervous system ( CNS ), astrocytes and microglia , are key participants in mediating the neurologic dysfunction associated with HIV infection of the CNS .
 ( cell type: microglia, None) , ( cell type: astrocytes, None) , ( cell type: glial 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: microglia, None) , ( cell type: astrocytes, None) , ( cell type: glial cells, None) 