TY - JOUR AR - NNB-2018-2-101 TI - Ion channels involved in spontaneous pain AU - Hiroki , Toyoda JO - Neurology and Neurobiology PY - 2018 DA - Wed 05, Sep 2018 SN - 2613-7828 DO - http://dx.doi.org/10.31487/j.NNB.2018.02.001 UR - https://www.sciencerepository.org/ion-channels-involved-in-spontaneous-pain_NNB-2-101 KW - ion channel, spontaneous pain, neuron AB - Pain is a distressing feeling that is often induced by damaging stimuli. The nerve injuries cause various molecular changes in nociceptive primary afferent neurons that cause spontaneous pain. Furthermore, the nerve trunk injury induces ectopic discharge, resulting in spontaneous pain. To date, accumulating evidence suggests that ion channels which are responsible for neuronal excitability play key roles in generation of spontaneous pain. It is believed that voltage-gated Na+ channels (VGSCs) and Ca2+ channels (VGCCs) are the primary membrane proteins for causing spontaneous pain. However, it has been evident that various ion channels including transient receptor potential (TRP) channels, hyperpolarization-activated cyclic nucleotide–gated (HCN) channels and acid-sensing ion channels (ASICs) are associated with generation of spontaneous pain. In the present review, I will describe the current knowledge on ion channels related to spontaneous pain