Purinergic receptor P2X7 has a role in immunological processes. It has a role during oxidative stress under pathological conditions. The channel is permeable to Na+, Ca2+ and K+. Prolonged activation of the channel under some pathological conditions leads to the passage of large molecules and ultimately cell death. P2X7 may be involved in the release of interleukin-1β (IL-1β) and indirectly initiate an inflammatory cascade.
