Microglial cells in culture and in situ express a defined pattern of K+ channels, which is
distinct from that of other glial cells and neurons. This pattern undergoes defined changes
with microglial activation. As expected for a cell with immunological properties, microglia
express a variety of cytokine and chemokine receptors, which are linked to the mobilization
of Ca2+ (cytosolic free calcium) from internal stores. Microglial cells also have the capacity
to respond to neuronal activity: they express receptors for the major excitatory receptor …