4.5 Review

P2Y receptors in neuropathic pain

Journal

PHARMACOLOGY BIOCHEMISTRY AND BEHAVIOR
Volume 186, Issue -, Pages -

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.pbb.2019.172788

Keywords

Neuropathic pain; P2Y receptors; ATP; Nerve injury; Microglia; Somatosensory

Funding

  1. National Natural Science Foundation of China [81860217, 81560219, 81200853]
  2. Key Research and Development Program of Jiangxi Province, China [20192BBH80017]
  3. Natural Science Foundation of Jiangxi Province, China [20171BAB205025]

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This review summarizes and evaluates the relationship between neuropathic pain and P2Y receptors from inception to 2019. Purinergic receptors have been well studied in recent years using various molecular biological methods. The main research objective of this review is to determine the association of P2Y1, P2Y2, P2Y6, P2Y12 and P2Y13 receptors with neuropathic pain. This review includes the most comprehensive subtypes of P2Y that related to neuropathic pain and the current therapeutic method of neuropathic pain. G protein-coupled P2Y receptors are located on neurons, astrocytes, oligodendrocytes and microglial cells and regulate neuro-transmission. Nerve injury is the prime reason for abnormal regulation of P2Y receptor mRNA expression, subsequently, inducing neuropathic pain. Neuropathic pain is a type of chronic pain that is divided into peripheral, central and mixed. Numerous studies demonstrated a positive correlation between the expression level of P2Y receptors and neuropathic pain generation. Also, several reports showed that P2Y short hairpin RNA (shRNA) and P2Y antagonist can be used as an analgesic to relieve neuropathic pain via decreasing P2Y receptor expression level and neural cell activation. However, the transformation process from basic experiments to clinical applications is a long process. Current deficiencies and future research directions are discussed at the end of this review.

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