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Lu HJ, Wu XB, Wei QQ. Ion channels in cancer-induced bone pain: from molecular mechanisms to clinical applications. Front Mol Neurosci 2023; 16:1239599. [PMID: 37664239 PMCID: PMC10469682 DOI: 10.3389/fnmol.2023.1239599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 08/07/2023] [Indexed: 09/05/2023] Open
Abstract
Cancer-induced bone pain (CIBP) caused by bone metastasis is one of the most prevalent diseases, and current treatments rely primarily on opioids, which have significant side effects. However, recent developments in pharmaceutical science have identified several new mechanisms for CIBP, including the targeted modification of certain ion channels and receptors. Ion channels are transmembrane proteins, which are situated on biological cell membranes, which facilitate passive transport of inorganic ions across membranes. They are involved in various physiological processes, including transmission of pain signals in the nervous system. In recent years, there has been an increasing interest in the role of ion channels in chronic pain, including CIBP. Therefore, in this review, we summarize the current literature on ion channels, related receptors, and drugs and explore the mechanism of CIBP. Targeting ion channels and regulating their activity might be key to treating pain associated with bone cancer and offer new treatment avenues.
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Affiliation(s)
- Huan-Jun Lu
- Institute of Pain Medicine and Special Environmental Medicine, Nantong University, Nantong, China
| | - Xiao-Bo Wu
- Institute of Pain Medicine and Special Environmental Medicine, Nantong University, Nantong, China
| | - Qian-Qi Wei
- Department of Infectious Diseases, General Hospital of Tibet Military Command, Xizang, China
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2
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Zhang Y, Zhang D, Qin C. Animal models and experimental medicine and the Nobel Prize in Physiology or Medicine 2021-TRPV and PIEZO receptors for temperature and touch sensation. Animal Model Exp Med 2021; 4:297-299. [PMID: 34977480 PMCID: PMC8690987 DOI: 10.1002/ame2.12196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 11/16/2021] [Indexed: 11/25/2022] Open
Affiliation(s)
- Yu Zhang
- Institute of Laboratory Animal SciencesChinese Academy of Medical SciencesBeijingChina
- Comparative Medicine CenterPeking Union Medical CollegeBeijingChina
- NHC Key Laboratory of Human Disease Comparative MedicineBeijingChina
- Beijing Engineering Research Center for Experimental Animal Models of Human Critical DiseasesBeijingChina
- Chinese Association for Laboratory Animal SciencesBeijingChina
| | - Dongyuan Zhang
- Institute of Laboratory Animal SciencesChinese Academy of Medical SciencesBeijingChina
- Comparative Medicine CenterPeking Union Medical CollegeBeijingChina
- NHC Key Laboratory of Human Disease Comparative MedicineBeijingChina
- Beijing Engineering Research Center for Experimental Animal Models of Human Critical DiseasesBeijingChina
- Chinese Association for Laboratory Animal SciencesBeijingChina
| | - Chuan Qin
- Institute of Laboratory Animal SciencesChinese Academy of Medical SciencesBeijingChina
- Comparative Medicine CenterPeking Union Medical CollegeBeijingChina
- NHC Key Laboratory of Human Disease Comparative MedicineBeijingChina
- Beijing Engineering Research Center for Experimental Animal Models of Human Critical DiseasesBeijingChina
- Chinese Association for Laboratory Animal SciencesBeijingChina
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3
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Notartomaso S, Scarselli P, Mascio G, Liberatore F, Mazzon E, Mammana S, Gugliandolo A, Cruccu G, Bruno V, Nicoletti F, Battaglia G. N-Acetylcysteine causes analgesia in a mouse model of painful diabetic neuropathy. Mol Pain 2021; 16:1744806920904292. [PMID: 32009537 PMCID: PMC6997966 DOI: 10.1177/1744806920904292] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
N-Acetylcysteine, one of the most prescribed antioxidant drugs, enhances pain
threshold in rodents and humans by activating mGlu2 metabotropic glutamate
receptors. Here, we assessed the analgesic activity of N-acetylcysteine in the
streptozotocin model of painful diabetic neuropathy and examined the effect of
N-acetylcysteine on proteins that are involved in mechanisms of nociceptive
sensitization. Mice with blood glucose levels ≥250 mg/dl in response to a single
intraperitoneal (i.p.) injection of streptozotocin (200 mg/kg) were used for the
assessment of mechanical pain thresholds. Systemic treatment with
N-acetylcysteine (100 mg/kg, i.p., either single injection or daily injections
for seven days) caused analgesia in diabetic mice. N-acetylcysteine-induced
analgesia was abrogated by the Sxc− inhibitors, sulfasalazine (8 mg/kg, i.p.), erastin (30 mg/kg,
i.p.), and sorafenib (10 mg/kg, i.p.), or by the mGlu2/3 receptor antagonist,
LY341495 (1 mg/kg, i.p.). Repeated administrations of N-acetylcysteine in
diabetic mice reduced ERK1/2 phosphorylation in the dorsal region of the lumbar
spinal cord. The analgesic activity of N-acetylcysteine was occluded by the MEK
inhibitor, PD0325901 (25 mg/kg, i.p.), the TRPV1 channel blocker, capsazepine
(40 mg/kg, i.p.), or by a cocktail of NMDA and mGlu5 metabotropic glutamate
receptor antagonists (memantine, 25 mg/kg, plus MTEP, 5 mg/kg,
both i.p.). These findings offer the first demonstration that N-acetylcysteine
relieves pain associated with diabetic neuropathy and holds promise for the use
of N-acetylcysteine as an add-on drug in diabetic patients.
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Affiliation(s)
| | - Pamela Scarselli
- IRCCS Istituto Neurologico Mediterraneo Neuromed, Pozzilli, Italy
| | - Giada Mascio
- IRCCS Istituto Neurologico Mediterraneo Neuromed, Pozzilli, Italy
| | | | | | - Santa Mammana
- IRCCS Centro Neurolesi "Bonino-Pulejo", Messina, Italy
| | | | - Giorgio Cruccu
- Department of Human Neuroscience, Sapienza University, Rome, Italy
| | - Valeria Bruno
- IRCCS Istituto Neurologico Mediterraneo Neuromed, Pozzilli, Italy.,Department of Physiology and Pharmacology, Sapienza University, Rome, Italy
| | - Ferdinando Nicoletti
- IRCCS Istituto Neurologico Mediterraneo Neuromed, Pozzilli, Italy.,Department of Physiology and Pharmacology, Sapienza University, Rome, Italy
| | - Giuseppe Battaglia
- IRCCS Istituto Neurologico Mediterraneo Neuromed, Pozzilli, Italy.,Department of Physiology and Pharmacology, Sapienza University, Rome, Italy
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Liu X, Ji Q, Liu F, Jin L, Tan Y, Zhang L, Tang J. HCN2 contributes to oxaliplatin-induced neuropathic pain by inducing spinal long-term potentiation via activation of NMDA receptor-mediated CaMKII signaling. Brain Res Bull 2020; 159:61-66. [PMID: 32165274 DOI: 10.1016/j.brainresbull.2020.03.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 03/06/2020] [Indexed: 12/01/2022]
Abstract
Our previous findings indicate that HCN2 contributes to oxaliplatin-induced neuropathic pain, but the mechanisms underlying the development of neuropathic pain are still unclear. Here, we found that the rat HCN2 levels significantly increased after high-frequency stimulation-induced long-term potentiation (LTP). Spinal local application of ZD7288 (a cyclic-nucleotide-gated-channel-specific inhibitor) prevented LTP induction after intraperitoneal injection of oxaliplatin. In addition, oxaliplatin administration induced spinal LTP via activation of the CaMKII-CREB cascade in the rat spinal dorsal horn. Moreover, we found that administration of oxaliplatin significantly increased the amplitude of excitatory postsynaptic currents and the number of action potentials, but these effects were attenuated by pretreatment with either CaMKII inhibitor KN-93 or NR2B antagonist Ro 25-6981. An increase in the phosphorylation of spinal N-methyl-d-aspartate (NMDA) receptor subunit 1 (NR1) after oxaliplatin administration was weakened by ZD7288 pretreatment. Administration of noncompetitive NMDA receptor antagonist MK-801 blocked oxaliplatin-evoked CaMKII-CREB cascade activation and prevented HCN2-mediated spinal-LTP induction in vitro and suppressed neuropathic-pain behaviors of rats. All these data suggest that HCN2 contributes to the development of neuropathic pain by inducing spinal LTP via activation of NMDA receptor-mediated CaMKII signaling.
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Affiliation(s)
- Xiaoyu Liu
- Department of Anesthesiology, Jinling Hospital, Medical School of Nanjing University, 305 East Zhongshan Road, Nanjing, Jiangsu Province, 210002, PR China
| | - Qing Ji
- Department of Anesthesiology, Jinling Hospital, Medical School of Nanjing University, 305 East Zhongshan Road, Nanjing, Jiangsu Province, 210002, PR China
| | - Fangfang Liu
- Department of Anesthesiology, Jinling Hospital, Medical School of Nanjing University, 305 East Zhongshan Road, Nanjing, Jiangsu Province, 210002, PR China
| | - Li Jin
- Department of Anesthesiology, Jinling Hospital, Medical School of Nanjing University, 305 East Zhongshan Road, Nanjing, Jiangsu Province, 210002, PR China
| | - Yuanhui Tan
- Department of Anesthesiology, Jinling Hospital, Medical School of Nanjing University, 305 East Zhongshan Road, Nanjing, Jiangsu Province, 210002, PR China
| | - Lidong Zhang
- Department of Anesthesiology, Jinling Hospital, Medical School of Nanjing University, 305 East Zhongshan Road, Nanjing, Jiangsu Province, 210002, PR China.
| | - Jun Tang
- Department of Anesthesiology, Jinling Hospital, Medical School of Nanjing University, 305 East Zhongshan Road, Nanjing, Jiangsu Province, 210002, PR China.
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5
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Guo R, Li H, Li X, Xue Z, Sun Y, Ma D, Guan Y, Li J, Tian M, Wang Y. Downregulation of neuroligin1 ameliorates postoperative pain through inhibiting neuroligin1/postsynaptic density 95-mediated synaptic targeting of α-amino-3-hydroxy-5-methyl-4-isoxazole propionate receptor GluA1 subunits in rat dorsal horns. Mol Pain 2018; 14:1744806918766745. [PMID: 29592780 PMCID: PMC5881971 DOI: 10.1177/1744806918766745] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Neuroligin1 is an important synaptic cell adhesion molecule that modulates the function of synapses through protein-protein interactions. Yet, it remains unclear whether the regulation of synaptic transmission in the spinal cord by neruoligin1 contributes to the development of postoperative pain. In a rat model of postoperative pain induced by plantar incision, we conducted Western blot study to examine changes in the expression of postsynaptic membrane of neuroligin1, postsynaptic density 95 (PSD-95), and α-amino-3-hydroxy-5-methyl-4-isoxazole propionate (AMPA) receptor GluA1 and GluA2 subunits in the spinal cord dorsal horn after injury. The interaction between neuroligin1 and PSD-95 was further determined by using coimmunoprecipitation. Protein levels of neuroligin1 and GluA1, but not GluA2 and PSD-95, were significantly increased in the postsynaptic membrane of the ipsilateral dorsal horn at 3 h and 1 day after incision, as compared to that in control group (naïve). A greater amount of PSD-95 was coimmunoprecipitated with neuroligin1 at 3 h after incision than that in the control group. Intrathecal administration of small interfering RNAs (siRNAs) targeting neuroligin1 suppressed the expression of neuroligin1 in the spinal cord. Importantly, pretreatment with intrathecal neuroligin1 siRNA2497, but not scrambled siRNA or vehicle, prevented the upregulation of GluA1 expression at 3 h after incision, inhibited the enhanced neuroligin1/PSD-95 interaction, and attenuated postoperative pain. Together, current findings suggest that downregulation of spinal neuroligin1 expression may ameliorate postoperative pain through inhibiting neuroligin1/PSD-95 interaction and synaptic targeting of GluA1 subunit. Accordingly, spinal neuroligin1 may be a potential new target for postoperative pain treatment.
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Affiliation(s)
- Ruijuan Guo
- 1 Department of Anesthesiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Huili Li
- 2 Department of Anesthesiology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Xueyang Li
- 2 Department of Anesthesiology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Zhaojing Xue
- 1 Department of Anesthesiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Yuqing Sun
- 2 Department of Anesthesiology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Danxu Ma
- 2 Department of Anesthesiology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Yun Guan
- 3 Department of Anesthesiology and Critical Care Medicine, The 1466 Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Junfa Li
- 4 Department of Neurobiology, Capital Medical University, Beijing, China
| | - Ming Tian
- 1 Department of Anesthesiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Yun Wang
- 2 Department of Anesthesiology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
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Yue L, Ma LY, Cui S, Liu FY, Yi M, Wan Y. Brain-derived neurotrophic factor in the infralimbic cortex alleviates inflammatory pain. Neurosci Lett 2017. [PMID: 28648456 DOI: 10.1016/j.neulet.2017.06.028] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
In chronic pain, it has been reported that the medial prefrontal cortex (mPFC) takes important regulatory roles, and may change functionally and morphologically in result of chronic pain. Brain-derived neurotrophic factor (BDNF) is well known as a critical modulator of neuronal excitability and synaptic transmission in the central nervous system. The aim of the present study is to investigate the role of BDNF in the infralimbic cortex and the prelimbic cortex of the mPFC in complete Freund's adjuvant (CFA)-induced inflammatory pain. We found that the BDNF level decreased in the infralimbic cortex, but not in the prelimbic cortex, 3days after the CFA induction of the inflammatory pain. BDNF infusion into bilateral infralimbic cortices to activate neuronal activities could alleviate inflammatory pain and accelerate long-term recovery from pain. In conclusion, BDNF in the infralimbic cortex of the mPFC could accelerate recovery from inflammatory pain.
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Affiliation(s)
- Lupeng Yue
- Neuroscience Research Institute, Peking University, Beijing 100191, P. R. China
| | - Long-Yu Ma
- Neuroscience Research Institute, Peking University, Beijing 100191, P. R. China
| | - Shuang Cui
- Neuroscience Research Institute, Peking University, Beijing 100191, P. R. China
| | - Feng-Yu Liu
- Neuroscience Research Institute, Peking University, Beijing 100191, P. R. China
| | - Ming Yi
- Neuroscience Research Institute, Peking University, Beijing 100191, P. R. China
| | - You Wan
- Neuroscience Research Institute, Peking University, Beijing 100191, P. R. China; Department of Neurobiology, School of Basic Medical Sciences, Peking University, Beijing 100191, P. R. China; Key Laboratory for Neuroscience, Ministry of Education/National Health and Family Planning Commission, Peking University, Beijing 100191, P. R. China.
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7
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BDNF Contributes to Spinal Long-Term Potentiation and Mechanical Hypersensitivity Via Fyn-Mediated Phosphorylation of NMDA Receptor GluN2B Subunit at Tyrosine 1472 in Rats Following Spinal Nerve Ligation. Neurochem Res 2017; 42:2712-2729. [DOI: 10.1007/s11064-017-2274-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 04/01/2017] [Accepted: 04/18/2017] [Indexed: 11/26/2022]
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8
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Xia W, Mørch C, Matre D, Andersen O. Exploration of conditioned pain modulation effect on long-term potentiation-like pain amplification in humans. Eur J Pain 2016; 21:645-657. [DOI: 10.1002/ejp.968] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/13/2016] [Indexed: 11/09/2022]
Affiliation(s)
- W. Xia
- Department of Health Science and Technology; Center for Neuroplasticity and Pain (CNAP); SMI; Aalborg University; Denmark
- Jilin University; Changchun China
| | - C.D. Mørch
- Department of Health Science and Technology; Center for Neuroplasticity and Pain (CNAP); SMI; Aalborg University; Denmark
| | - D. Matre
- Department of Work Psychology and Physiology; National Institute of Occupational Health; Oslo Norway
| | - O.K. Andersen
- Department of Health Science and Technology; Center for Neuroplasticity and Pain (CNAP); SMI; Aalborg University; Denmark
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Denis DJ, Marouf R, Rainville P, Bouthillier A, Nguyen DK. Effects of insular stimulation on thermal nociception. Eur J Pain 2015; 20:800-10. [PMID: 26471114 DOI: 10.1002/ejp.806] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/10/2015] [Indexed: 12/11/2022]
Abstract
BACKGROUND Electrical stimulation used for brain mapping in the postero-superior insula can evoke pain. The effects of prolonged high frequency insular stimulation on pain thresholds are unknown. OBJECTIVE/HYPOTHESIS Prolonged high frequency insular stimulation, by virtue of its inhibitory properties on networks, could decrease thermal nociception. METHODS Epileptic subjects had electrodes implanted in the insular cortex for the purpose of epileptic focus resection. Thermal and pressure nociceptive thresholds were tested bilaterally on the forearm on two consecutive days. Randomly assigned double-blind high frequency (150 Hz) insular stimulation took place for 10 min before pain testing either on the first day or on the second day. RESULTS Six subjects (three females; mean age of 35 years) were included. Insular stimulation increased heat pain threshold on the ipsilateral (p = 0.003; n = 6) and contralateral sides (p = 0.047; n = 6). Differences in cold pain threshold did not reach statistical significance (ipsilateral: p = 0.341, contralateral: p = 0.143; n = 6), but one subject had a profound decrease in both heat and cold pain responses. Pressure pain threshold was not modified by insular stimulation (ipsilateral: p = 0.1123; contralateral: p = 0.1192; n = 6). Two of the three subjects who had a postero-superior operculo-insulectomy developed central pain with contralateral thermal nociceptive deficit. CONCLUSIONS High frequency inhibitory postero-superior insular stimulation may have the potential to decrease thermal nociception. Together with previous studies, our data support the notion that the integrity of this brain region is necessary for thermal but not pressure nociceptive processing.
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Affiliation(s)
- D J Denis
- Division of Neurosurgery, Department of Surgery, Centre Hospitalier de l'Université de Montréal (Hôpital Notre-Dame), Canada
| | - R Marouf
- Department of Neuroscience, Université de Montréal, Canada
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), Université de Montréal, Canada
| | - P Rainville
- Department of Neuroscience, Université de Montréal, Canada
- Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), Université de Montréal, Canada
- Department of Stomatology, Université de Montréal, Canada
- Centre de recherche en neuropsychologie et cognition (CERNEC), Université de Montréal, Canada
- Groupe de recherche sur le système nerveux central (GRSNC), Université de Montréal, Canada
| | - A Bouthillier
- Division of Neurosurgery, Department of Surgery, Centre Hospitalier de l'Université de Montréal (Hôpital Notre-Dame), Canada
| | - D K Nguyen
- Department of Neuroscience, Université de Montréal, Canada
- Division of Neurology, Department of Medicine, Centre Hospitalier Université de Montréal (Hôpital Notre-Dame), Canada
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Sdrulla AD, Xu Q, He SQ, Tiwari V, Yang F, Zhang C, Shu B, Shechter R, Raja SN, Wang Y, Dong X, Guan Y. Electrical stimulation of low-threshold afferent fibers induces a prolonged synaptic depression in lamina II dorsal horn neurons to high-threshold afferent inputs in mice. Pain 2015; 156:1008-1017. [PMID: 25974163 PMCID: PMC4437220 DOI: 10.1097/01.j.pain.0000460353.15460.a3] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Electrical stimulation of low-threshold Aβ-fibers (Aβ-ES) is used clinically to treat neuropathic pain conditions that are refractory to pharmacotherapy. However, it is unclear how Aβ-ES modulates synaptic responses to high-threshold afferent inputs (C-, Aδ-fibers) in superficial dorsal horn. Substantia gelatinosa (SG) (lamina II) neurons are important for relaying and modulating converging spinal nociceptive inputs. We recorded C-fiber-evoked excitatory postsynaptic currents (eEPSCs) in spinal cord slices in response to paired-pulse test stimulation (500 μA, 0.1 millisecond, 400 milliseconds apart). We showed that 50-Hz and 1000-Hz, but not 4-Hz, Aβ-ES (10 μA, 0.1 millisecond, 5 minutes) induced prolonged inhibition of C-fiber eEPSCs in SG neurons in naive mice. Furthermore, 50-Hz Aβ-ES inhibited both monosynaptic and polysynaptic forms of C-fiber eEPSC in naive mice and mice that had undergone spinal nerve ligation (SNL). The paired-pulse ratio (amplitude second eEPSC/first eEPSC) increased only in naive mice after 50-Hz Aβ-ES, suggesting that Aβ-ES may inhibit SG neurons by different mechanisms under naive and nerve-injured conditions. Finally, 50-Hz Aβ-ES inhibited both glutamatergic excitatory and GABAergic inhibitory interneurons, which were identified by fluorescence in vGlut2-Td and glutamic acid decarboxylase-green fluorescent protein transgenic mice after SNL. These findings show that activities in Aβ-fibers lead to frequency-dependent depression of synaptic transmission in SG neurons in response to peripheral noxious inputs. However, 50-Hz Aβ-ES failed to induce cell-type-selective inhibition in SG neurons. The physiologic implication of this novel form of synaptic depression for pain modulation by Aβ-ES warrants further investigation.
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Affiliation(s)
- Andrei D. Sdrulla
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University, School of Medicine, Baltimore, Maryland, 21205
| | - Qian Xu
- The Solomon H. Snyder Department of Neuroscience, Center for Sensory Biology, Johns Hopkins University, School of Medicine, Baltimore, Maryland, 21205
- Howard Hughes Medical Institute, Johns Hopkins University, School of Medicine, Baltimore, Maryland, 21205
| | - Shao-Qiu He
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University, School of Medicine, Baltimore, Maryland, 21205
| | - Vinod Tiwari
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University, School of Medicine, Baltimore, Maryland, 21205
| | - Fei Yang
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University, School of Medicine, Baltimore, Maryland, 21205
| | - Chen Zhang
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University, School of Medicine, Baltimore, Maryland, 21205
- Department of Anesthesiology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Bin Shu
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University, School of Medicine, Baltimore, Maryland, 21205
| | - Ronen Shechter
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University, School of Medicine, Baltimore, Maryland, 21205
| | - Srinivasa N. Raja
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University, School of Medicine, Baltimore, Maryland, 21205
| | - Yun Wang
- Department of Anesthesiology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Xinzhong Dong
- The Solomon H. Snyder Department of Neuroscience, Center for Sensory Biology, Johns Hopkins University, School of Medicine, Baltimore, Maryland, 21205
- Howard Hughes Medical Institute, Johns Hopkins University, School of Medicine, Baltimore, Maryland, 21205
| | - Yun Guan
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University, School of Medicine, Baltimore, Maryland, 21205
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Ding X, Cai J, Li S, Liu XD, Wan Y, Xing GG. BDNF contributes to the development of neuropathic pain by induction of spinal long-term potentiation via SHP2 associated GluN2B-containing NMDA receptors activation in rats with spinal nerve ligation. Neurobiol Dis 2014; 73:428-51. [PMID: 25447233 DOI: 10.1016/j.nbd.2014.10.025] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 10/16/2014] [Accepted: 10/31/2014] [Indexed: 12/30/2022] Open
Abstract
The pathogenic mechanisms underlying neuropathic pain still remain largely unknown. In this study, we investigated whether spinal BDNF contributes to dorsal horn LTP induction and neuropathic pain development by activation of GluN2B-NMDA receptors via Src homology-2 domain-containing protein tyrosine phosphatase-2 (SHP2) phosphorylation in rats following spinal nerve ligation (SNL). We first demonstrated that spinal BDNF participates in the development of long-lasting hyperexcitability of dorsal horn WDR neurons (i.e. central sensitization) as well as pain allodynia in both intact and SNL rats. Second, we revealed that BDNF induces spinal LTP at C-fiber synapses via functional up-regulation of GluN2B-NMDA receptors in the spinal dorsal horn, and this BDNF-mediated LTP-like state is responsible for the occlusion of spinal LTP elicited by subsequent high-frequency electrical stimulation (HFS) of the sciatic nerve in SNL rats. Finally, we validated that BDNF-evoked SHP2 phosphorylation is required for subsequent GluN2B-NMDA receptors up-regulation and spinal LTP induction, and also for pain allodynia development. Blockade of SHP2 phosphorylation in the spinal dorsal horn using a potent SHP2 protein tyrosine phosphatase inhibitor NSC-87877, or knockdown of spinal SHP2 by intrathecal delivery of SHP2 siRNA, not only prevents BDNF-mediated GluN2B-NMDA receptors activation as well as spinal LTP induction and pain allodynia elicitation in intact rats, but also reduces the SNL-evoked GluN2B-NMDA receptors up-regulation and spinal LTP occlusion, and ultimately alleviates pain allodynia in neuropathic rats. Taken together, these results suggest that the BDNF/SHP2/GluN2B-NMDA signaling cascade plays a vital role in the development of central sensitization and neuropathic pain after peripheral nerve injury.
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Affiliation(s)
- Xu Ding
- Neuroscience Research Institute, Peking University, Beijing 100191, P.R. China; Department of Neurobiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, P.R. China.
| | - Jie Cai
- Neuroscience Research Institute, Peking University, Beijing 100191, P.R. China; Department of Neurobiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, P.R. China.
| | - Song Li
- Neuroscience Research Institute, Peking University, Beijing 100191, P.R. China; Department of Neurobiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, P.R. China.
| | - Xiao-Dan Liu
- Neuroscience Research Institute, Peking University, Beijing 100191, P.R. China; Department of Neurobiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, P.R. China.
| | - You Wan
- Neuroscience Research Institute, Peking University, Beijing 100191, P.R. China; Department of Neurobiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, P.R. China.
| | - Guo-Gang Xing
- Neuroscience Research Institute, Peking University, Beijing 100191, P.R. China; Department of Neurobiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, P.R. China; Key Laboratory for Neuroscience, Ministry of Education and Ministry of Health, Beijing 100191, P.R. China.
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