Effects On Chronic Pain
Data obtained from using P2 receptor-selective antagonists has produced evidence supporting ATP's ability to initiate and maintain chronic pain states after exposure to noxious stimuli. It is believed that ATP functions as a pronociceptive neurotransmitter, acting acts at specific P2X and P2Y receptors in a systemized manner, which ultimately (as a response to noxious stimuli) serve to initiate and sustain heightened states of neuronal excitability. This recent knowledge of purinergic receptors' effects on chronic pain provide promise in discovering a drug that specifically targets individual P2 receptor subtypes. While some P2 receptor-selective compounds have proven useful in preclinical trials, more research is required to understand the potential viability of P2 receptor antagonists for pain.
Recent research has identified a role for microglial P2X receptors in neuropathic pain and inflammatory pain, especially the P2X4 and P2X7 receptors.
Read more about this topic: Purinergic Receptor
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