151
|
Chen YYK, Boden KA, Schreiber KL. The role of regional anaesthesia and multimodal analgesia in the prevention of chronic postoperative pain: a narrative review. Anaesthesia 2021; 76 Suppl 1:8-17. [PMID: 33426669 DOI: 10.1111/anae.15256] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/19/2020] [Indexed: 12/14/2022]
Abstract
Effective prevention of chronic postoperative pain is an important clinical goal, informed by a growing body of studies. Peri-operative regional anaesthesia remains one of the most important tools in the multimodal analgesic toolbox, blocking injury-induced activation and sensitisation of both the peripheral and central nervous system. We review the definition and taxonomy of chronic postoperative pain, its mechanistic basis and the most recent evidence for the preventative potential of multimodal analgesia, with a special focus on regional anaesthesia. While regional anaesthesia targets several important aspects of the mechanistic pathway leading to chronic postoperative pain, evidence for its efficacy is still mixed, possibly owing to the heterogeneity of risk profiles within the surgical patient, but also to variation in techniques and medications reported in the literature.
Collapse
Affiliation(s)
- Y-Y K Chen
- Department of Anesthesiology, Peri-operative and Pain Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | - K A Boden
- Department of Anesthesiology, Peri-operative and Pain Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | - K L Schreiber
- Department of Anesthesiology, Peri-operative and Pain Medicine, Brigham and Women's Hospital, Boston, MA, USA
| |
Collapse
|
152
|
Optical Assessment of Nociceptive TRP Channel Function at the Peripheral Nerve Terminal. Int J Mol Sci 2021; 22:ijms22020481. [PMID: 33418928 PMCID: PMC7825137 DOI: 10.3390/ijms22020481] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 01/01/2021] [Accepted: 01/03/2021] [Indexed: 12/13/2022] Open
Abstract
Free nerve endings are key structures in sensory transduction of noxious stimuli. In spite of this, little is known about their functional organization. Transient receptor potential (TRP) channels have emerged as key molecular identities in the sensory transduction of pain-producing stimuli, yet the vast majority of our knowledge about sensory TRP channel function is limited to data obtained from in vitro models which do not necessarily reflect physiological conditions. In recent years, the development of novel optical methods such as genetically encoded calcium indicators and photo-modulation of ion channel activity by pharmacological tools has provided an invaluable opportunity to directly assess nociceptive TRP channel function at the nerve terminal.
Collapse
|
153
|
Wang D, Lu J, Xu X, Yuan Y, Zhang Y, Xu J, Chen H, Liu J, Shen Y, Zhang H. Satellite Glial Cells Give Rise to Nociceptive Sensory Neurons. Stem Cell Rev Rep 2021; 17:999-1013. [PMID: 33389681 DOI: 10.1007/s12015-020-10102-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/01/2020] [Indexed: 12/27/2022]
Abstract
Dorsal root ganglia (DRG) sensory neurons can transmit information about noxious stimulus to cerebral cortex via spinal cord, and play an important role in the pain pathway. Alterations of the pain pathway lead to CIPA (congenital insensitivity to pain with anhidrosis) or chronic pain. Accumulating evidence demonstrates that nerve damage leads to the regeneration of neurons in DRG, which may contribute to pain modulation in feedback. Therefore, exploring the regeneration process of DRG neurons would provide a new understanding to the persistent pathological stimulation and contribute to reshape the somatosensory function. It has been reported that a subpopulation of satellite glial cells (SGCs) express Nestin and p75, and could differentiate into glial cells and neurons, suggesting that SGCs may have differentiation plasticity. Our results in the present study show that DRG-derived SGCs (DRG-SGCs) highly express neural crest cell markers Nestin, Sox2, Sox10, and p75, and differentiate into nociceptive sensory neurons in the presence of histone deacetylase inhibitor VPA, Wnt pathway activator CHIR99021, Notch pathway inhibitor RO4929097, and FGF pathway inhibitor SU5402. The nociceptive sensory neurons express multiple functionally-related genes (SCN9A, SCN10A, SP, Trpv1, and TrpA1) and are able to generate action potentials and voltage-gated Na+ currents. Moreover, we found that these cells exhibited rapid calcium transients in response to capsaicin through binding to the Trpv1 vanilloid receptor, confirming that the DRG-SGC-derived cells are nociceptive sensory neurons. Further, we show that Wnt signaling promotes the differentiation of DRG-SGCs into nociceptive sensory neurons by regulating the expression of specific transcription factor Runx1, while Notch and FGF signaling pathways are involved in the expression of SCN9A. These results demonstrate that DRG-SGCs have stem cell characteristics and can efficiently differentiate into functional nociceptive sensory neurons, shedding light on the clinical treatment of sensory neuron-related diseases.
Collapse
Affiliation(s)
- Dongyan Wang
- Department of Cell Biology, Medical College of Soochow University, Suzhou, 215123, China
| | - Junhou Lu
- Department of Cell Biology, Medical College of Soochow University, Suzhou, 215123, China
| | - Xiaojing Xu
- Department of Cell Biology, Medical College of Soochow University, Suzhou, 215123, China
| | - Ye Yuan
- Department of Cell Biology, Medical College of Soochow University, Suzhou, 215123, China
| | - Yu Zhang
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, 215006, China
| | - Jianwei Xu
- National Guizhou Joint Engineering Laboratory for Cell Engineering and Biomedicine Technique, Center for Tissue Engineering and Stem Cell Research, Guizhou Province Key Laboratory of Regenerative Medicine, Guizhou Medical University, Guiyang, 550004, China
| | - Huanhuan Chen
- Department of Cell Biology, Medical College of Soochow University, Suzhou, 215123, China
| | - Jinming Liu
- Department of Cell Biology, Medical College of Soochow University, Suzhou, 215123, China
| | - Yixin Shen
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou, 215006, China.
| | - Huanxiang Zhang
- Department of Cell Biology, Medical College of Soochow University, Suzhou, 215123, China.
| |
Collapse
|
154
|
Yousuf MS, Shiers SI, Sahn JJ, Price TJ. Pharmacological Manipulation of Translation as a Therapeutic Target for Chronic Pain. Pharmacol Rev 2021; 73:59-88. [PMID: 33203717 PMCID: PMC7736833 DOI: 10.1124/pharmrev.120.000030] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Dysfunction in regulation of mRNA translation is an increasingly recognized characteristic of many diseases and disorders, including cancer, diabetes, autoimmunity, neurodegeneration, and chronic pain. Approximately 50 million adults in the United States experience chronic pain. This economic burden is greater than annual costs associated with heart disease, cancer, and diabetes combined. Treatment options for chronic pain are inadequately efficacious and riddled with adverse side effects. There is thus an urgent unmet need for novel approaches to treating chronic pain. Sensitization of neurons along the nociceptive pathway causes chronic pain states driving symptoms that include spontaneous pain and mechanical and thermal hypersensitivity. More than a decade of preclinical research demonstrates that translational mechanisms regulate the changes in gene expression that are required for ongoing sensitization of nociceptive sensory neurons. This review will describe how key translation regulation signaling pathways, including the integrated stress response, mammalian target of rapamycin, AMP-activated protein kinase (AMPK), and mitogen-activated protein kinase-interacting kinases, impact the translation of different subsets of mRNAs. We then place these mechanisms of translation regulation in the context of chronic pain states, evaluate currently available therapies, and examine the potential for developing novel drugs. Considering the large body of evidence now published in this area, we propose that pharmacologically manipulating specific aspects of the translational machinery may reverse key neuronal phenotypic changes causing different chronic pain conditions. Therapeutics targeting these pathways could eventually be first-line drugs used to treat chronic pain disorders. SIGNIFICANCE STATEMENT: Translational mechanisms regulating protein synthesis underlie phenotypic changes in the sensory nervous system that drive chronic pain states. This review highlights regulatory mechanisms that control translation initiation and how to exploit them in treating persistent pain conditions. We explore the role of mammalian/mechanistic target of rapamycin and mitogen-activated protein kinase-interacting kinase inhibitors and AMPK activators in alleviating pain hypersensitivity. Modulation of eukaryotic initiation factor 2α phosphorylation is also discussed as a potential therapy. Targeting specific translation regulation mechanisms may reverse changes in neuronal hyperexcitability associated with painful conditions.
Collapse
Affiliation(s)
- Muhammad Saad Yousuf
- Center for Advanced Pain Studies, School of Behavioral and Brain Sciences, University of Texas at Dallas, Richardson, Texas (M.S.Y., S.I.S., T.J.P.) and 4E Therapeutics Inc, Austin, Texas (J.J.S.)
| | - Stephanie I Shiers
- Center for Advanced Pain Studies, School of Behavioral and Brain Sciences, University of Texas at Dallas, Richardson, Texas (M.S.Y., S.I.S., T.J.P.) and 4E Therapeutics Inc, Austin, Texas (J.J.S.)
| | - James J Sahn
- Center for Advanced Pain Studies, School of Behavioral and Brain Sciences, University of Texas at Dallas, Richardson, Texas (M.S.Y., S.I.S., T.J.P.) and 4E Therapeutics Inc, Austin, Texas (J.J.S.)
| | - Theodore J Price
- Center for Advanced Pain Studies, School of Behavioral and Brain Sciences, University of Texas at Dallas, Richardson, Texas (M.S.Y., S.I.S., T.J.P.) and 4E Therapeutics Inc, Austin, Texas (J.J.S.)
| |
Collapse
|
155
|
Bessière B, Iris F, Milet A, Beopoulos A, Billoet C, Farjot G. A new mechanistic approach for the treatment of chronic neuropathic pain with nitrous oxide integrated from a systems biology narrative review. Med Gas Res 2021; 11:34-41. [PMID: 33642336 PMCID: PMC8103977 DOI: 10.4103/2045-9912.310058] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 07/24/2020] [Accepted: 07/24/2020] [Indexed: 12/25/2022] Open
Abstract
The limitations of the currently available treatments for chronic neuropathic pain highlight the need for safer and more effective alternatives. The authors carried out a focused review using a systems biology approach to integrate the complex mechanisms of nociception and neuropathic pain, and to decipher the effects of nitrous oxide (N2O) on those pathways, beyond the known effect of N2O on N-methyl-D-aspartate receptors. This review identified a number of potential mechanisms by which N2O could impact the processes involved in peripheral and central sensitization. In the ascending pathway, the effects of N2O include activating TWIK-related K+ channel 1 potassium channels on first-order neurons, blocking voltage-dependent calcium channels to attenuate neuronal excitability, attenuating postsynaptic glutamatergic receptor activation, and possibly blocking voltage-dependent sodium channels. In the descending pathway, N2O induces the release of endogenous opioid ligands and stimulates norepinephrine release. In addition, N2O may mediate epigenetic changes by inhibiting methionine synthase, a key enzyme involved in DNA and RNA methylation. This could explain why this short-acting analgesic has shown long-lasting anti-pain sensitization effects in animal models of chronic pain. These new hypotheses support the rationale for investigating N2O, either alone or in combination with other analgesics, for the management of chronic neuropathic pain.
Collapse
Affiliation(s)
- Baptiste Bessière
- Air Liquide Santé International, Paris Innovation Campus, Jouy-en-Josas, France
| | | | - Aude Milet
- Air Liquide Santé International, Paris Innovation Campus, Jouy-en-Josas, France
| | | | - Catherine Billoet
- Air Liquide Santé International, Paris Innovation Campus, Jouy-en-Josas, France
| | - Géraldine Farjot
- Air Liquide Santé International, Paris Innovation Campus, Jouy-en-Josas, France
| |
Collapse
|
156
|
Tweety-Homolog 1 Facilitates Pain via Enhancement of Nociceptor Excitability and Spinal Synaptic Transmission. Neurosci Bull 2020; 37:478-496. [PMID: 33355899 DOI: 10.1007/s12264-020-00617-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Accepted: 06/09/2020] [Indexed: 12/21/2022] Open
Abstract
Tweety-homolog 1 (Ttyh1) is expressed in neural tissue and has been implicated in the generation of several brain diseases. However, its functional significance in pain processing is not understood. By disrupting the gene encoding Ttyh1, we found a loss of Ttyh1 in nociceptors and their central terminals in Ttyh1-deficient mice, along with a reduction in nociceptor excitability and synaptic transmission at identified synapses between nociceptors and spinal neurons projecting to the periaqueductal grey (PAG) in the basal state. More importantly, the peripheral inflammation-evoked nociceptor hyperexcitability and spinal synaptic potentiation recorded in spinal-PAG projection neurons were compromised in Ttyh1-deficient mice. Analysis of the paired-pulse ratio and miniature excitatory postsynaptic currents indicated a role of presynaptic Ttyh1 from spinal nociceptor terminals in the regulation of neurotransmitter release. Interfering with Ttyh1 specifically in nociceptors produces a comparable pain relief. Thus, in this study we demonstrated that Ttyh1 is a critical determinant of acute nociception and pain sensitization caused by peripheral inflammation.
Collapse
|
157
|
Zheng H, Lim JY, Seong JY, Hwang SW. The Role of Corticotropin-Releasing Hormone at Peripheral Nociceptors: Implications for Pain Modulation. Biomedicines 2020; 8:biomedicines8120623. [PMID: 33348790 PMCID: PMC7766747 DOI: 10.3390/biomedicines8120623] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 12/15/2020] [Accepted: 12/15/2020] [Indexed: 12/12/2022] Open
Abstract
Peripheral nociceptors and their synaptic partners utilize neuropeptides for signal transmission. Such communication tunes the excitatory and inhibitory function of nociceptor-based circuits, eventually contributing to pain modulation. Corticotropin-releasing hormone (CRH) is the initiator hormone for the conventional hypothalamic-pituitary-adrenal axis, preparing our body for stress insults. Although knowledge of the expression and functional profiles of CRH and its receptors and the outcomes of their interactions has been actively accumulating for many brain regions, those for nociceptors are still under gradual investigation. Currently, based on the evidence of their expressions in nociceptors and their neighboring components, several hypotheses for possible pain modulations are emerging. Here we overview the historical attention to CRH and its receptors on the peripheral nociception and the recent increases in information regarding their roles in tuning pain signals. We also briefly contemplate the possibility that the stress-response paradigm can be locally intrapolated into intercellular communication that is driven by nociceptor neurons. Such endeavors may contribute to a more precise view of local peptidergic mechanisms of peripheral pain modulation.
Collapse
Affiliation(s)
- Haiyan Zheng
- Department of Biomedical Sciences, College of Medicine, Korea University, Seoul 02841, Korea; (H.Z.); (J.Y.L.); (J.Y.S.)
| | - Ji Yeon Lim
- Department of Biomedical Sciences, College of Medicine, Korea University, Seoul 02841, Korea; (H.Z.); (J.Y.L.); (J.Y.S.)
| | - Jae Young Seong
- Department of Biomedical Sciences, College of Medicine, Korea University, Seoul 02841, Korea; (H.Z.); (J.Y.L.); (J.Y.S.)
| | - Sun Wook Hwang
- Department of Biomedical Sciences, College of Medicine, Korea University, Seoul 02841, Korea; (H.Z.); (J.Y.L.); (J.Y.S.)
- Department of Physiology, College of Medicine, Korea University, Seoul 02841, Korea
- Correspondence: ; Tel.: +82-2-2286-1204; Fax: +82-2-925-5492
| |
Collapse
|
158
|
Examining the role of transient receptor potential canonical 5 (TRPC5) in osteoarthritis. OSTEOARTHRITIS AND CARTILAGE OPEN 2020; 2:100119. [PMID: 33381767 PMCID: PMC7762818 DOI: 10.1016/j.ocarto.2020.100119] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 11/02/2020] [Indexed: 01/09/2023] Open
Abstract
Introduction Osteo-arthritis (OA) involves joint degradation and usually pain; with mechanisms poorly understood and few treatment options. There is evidence that the transient receptor potential canonical 5 (TRPC5) mRNA expression is reduced in OA patients’ synovia. Here we examine the profile of TRPC5 in DRG and involvement in murine models of OA. Design TRPC5 KO mice were subjected to partial meniscectomy (PMNX) or injected with monoiodoacetate (MIA) and pain-related behaviours were determined. Knee joint pathological scores were analysed and gene expression changes in ipsilateral synovium and dorsal root ganglia (DRG) determined. c-Fos protein expression in the ipsilateral dorsal horn of the spinal cord was quantified. Results TRPC5 KO mice developed a discrete enhanced pain-related phenotype. In the MIA model, the pain-related phenotype correlated with c-Fos expression in the dorsal horn and increased expression of nerve injury markers ATF3, CSF1 and galanin in the ipsilateral DRG. There were negligible differences in the joint pathology between WT and TRPC5 KO mice, however detailed gene expression analysis determined increased expression of the mast cell marker CD117 as well as extracellular matrix remodelling proteinases MMP2, MMP13 and ADAMTS4 in MIA-treated TRPC5 KO mice. TRPC5 expression was defined to sensory subpopulations in DRG. Conclusions Deletion of TRPC5 receptor signalling is associated with exacerbation of pain-like behaviour in OA which correlates with increased expression of enzymes involved in extracellular remodelling, inflammatory cells in the synovium and increased neuronal activation and injury in DRG. Together, these results identify a modulating role for TRPC5 in OA-induced pain-like behaviours.
Collapse
|
159
|
Opioid-Induced Hyperalgesic Priming in Single Nociceptors. J Neurosci 2020; 41:31-46. [PMID: 33203743 DOI: 10.1523/jneurosci.2160-20.2020] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 09/23/2020] [Accepted: 11/01/2020] [Indexed: 12/27/2022] Open
Abstract
Clinical µ-opioid receptor (MOR) agonists produce hyperalgesic priming, a form of maladaptive nociceptor neuroplasticity, resulting in pain chronification. We have established an in vitro model of opioid-induced hyperalgesic priming (OIHP), in male rats, to identify nociceptor populations involved and its maintenance mechanisms. OIHP was induced in vivo by systemic administration of fentanyl and confirmed by prolongation of prostaglandin E2 (PGE2) hyperalgesia. Intrathecal cordycepin, which reverses Type I priming, or the combination of Src and mitogen-activated protein kinase (MAPK) inhibitors, which reverses Type II priming, both partially attenuated OIHP. Parallel in vitro experiments were performed on small-diameter (<30 µm) dorsal root ganglion (DRG) neurons, cultured from fentanyl-primed rats, and rats with OIHP treated with agents that reverse Type I or Type II priming. Enhancement of the sensitizing effect of a low concentration of PGE2 (10 nm), another characteristic feature of priming, measured as reduction in action potential (AP) rheobase, was found in weakly isolectin B4 (IB4)-positive and IB4-negative (IB4-) neurons. In strongly IB4-positive (IB4+) neurons, only the response to a higher concentration of PGE2 (100 nm) was enhanced. The sensitizing effect of 10 nm PGE2 was attenuated in weakly IB4+ and IB4- neurons cultured from rats whose OIHP was reversed in vivo Thus, in vivo administration of fentanyl induces neuroplasticity in weakly IB4+ and IB4- nociceptors that persists in vitro and has properties of Type I and Type II priming. The mechanism underlying the enhanced sensitizing effect of 100 nm PGE2 in strongly IB4+ nociceptors, not attenuated by inhibitors of Type I and Type II priming, remains to be elucidated.SIGNIFICANCE STATEMENT Commonly used clinical opioid analgesics, such as fentanyl and morphine, can produce hyperalgesia and chronification of pain. To uncover the nociceptor population mediating opioid-induced hyperalgesic priming (OIHP), a model of pain chronification, and elucidate its underlying mechanism, at the cellular level, we established an in vitro model of OIHP. In dorsal root ganglion (DRG) neurons cultured from rats primed with fentanyl, robust nociceptor population-specific changes in sensitization by prostaglandin E2 (PGE2) were observed, when compared with nociceptors from opioid naive rats. In DRG neurons cultured from rats with OIHP, enhanced PGE2-induced sensitization was observed in vitro, with differences identified in non-peptidergic [strongly isolectin B4 (IB4)-positive] and peptidergic [weakly IB4-positive (IB4+) and IB4-negative (IB4-)] nociceptors.
Collapse
|
160
|
Picoli CC, Costa AC, Rocha BGS, Silva WN, Santos GSP, Prazeres PHDM, Costa PAC, Oropeza A, da Silva RA, Azevedo VAC, Resende RR, Cunha TM, Mintz A, Birbrair A. Sensory nerves in the spotlight of the stem cell niche. Stem Cells Transl Med 2020; 10:346-356. [PMID: 33112056 PMCID: PMC7900586 DOI: 10.1002/sctm.20-0284] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 08/27/2020] [Accepted: 09/26/2020] [Indexed: 12/16/2022] Open
Abstract
Niches are specialized tissue microenvironments that control stem cells functioning. The bone marrow mesenchymal stem cell niche defines a location within the marrow in which mesenchymal stem cells are retained and produce new cells throughout life. Deciphering the signaling mechanisms by which the niche regulates stem cell fate will facilitate the use of these cells for therapy. Recent studies, by using state-of-the-art methodologies, including sophisticated in vivo inducible genetic techniques, such as lineage-tracing Cre/loxP mediated systems, in combination with pharmacological inhibition, provide evidence that sensory neuron is an important component of the bone marrow mesenchymal stem cell niche. Strikingly, knockout of a specific receptor in sensory neurons blocked stem cell function in the bone marrow. The knowledge arising from these discoveries will be crucial for stem cell manipulation in the future. Here, we review recent progress in our understanding of sensory nerves biology in the stem cell niche.
Collapse
Affiliation(s)
- Caroline C Picoli
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Alinne C Costa
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Beatriz G S Rocha
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Walison N Silva
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Gabryella S P Santos
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Pedro H D M Prazeres
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Pedro A C Costa
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Anderson Oropeza
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Rodrigo A da Silva
- Department of Dentistry, University of Taubaté, Taubaté, São Paulo, Brazil
| | - Vasco A C Azevedo
- Cellular and Molecular Genetics Laboratory, Department of Genetics, Ecology and Evolution, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Rodrigo R Resende
- Department of Biochemistry and Immunology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Thiago M Cunha
- Department of Pharmacology, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Akiva Mintz
- Department of Radiology, Columbia University Medical Center, New York, New York, USA
| | - Alexander Birbrair
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.,Department of Radiology, Columbia University Medical Center, New York, New York, USA
| |
Collapse
|
161
|
The Input-Output Relation of Primary Nociceptive Neurons is Determined by the Morphology of the Peripheral Nociceptive Terminals. J Neurosci 2020; 40:9346-9363. [PMID: 33115929 DOI: 10.1523/jneurosci.1546-20.2020] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 10/19/2020] [Accepted: 10/21/2020] [Indexed: 12/22/2022] Open
Abstract
The output from the peripheral terminals of primary nociceptive neurons, which detect and encode the information regarding noxious stimuli, is crucial in determining pain sensation. The nociceptive terminal endings are morphologically complex structures assembled from multiple branches of different geometry, which converge in a variety of forms to create the terminal tree. The output of a single terminal is defined by the properties of the transducer channels producing the generation potentials and voltage-gated channels, translating the generation potentials into action potential (AP) firing. However, in the majority of cases, noxious stimuli activate multiple terminals; thus, the output of the nociceptive neuron is defined by the integration and computation of the inputs of the individual terminals. Here, we used a computational model of nociceptive terminal tree to study how the architecture of the terminal tree affects the input-output relation of the primary nociceptive neurons. We show that the input-output properties of the nociceptive neurons depend on the length, the axial resistance (Ra), and location of individual terminals. Moreover, we show that activation of multiple terminals by a capsaicin-like current allows summation of the responses from individual terminals, thus leading to increased nociceptive output. Stimulation of the terminals in simulated models of inflammatory or neuropathic hyperexcitability led to a change in the temporal pattern of AP firing, emphasizing the role of temporal code in conveying key information about changes in nociceptive output in pathologic conditions, leading to pain hypersensitivity.SIGNIFICANCE STATEMENT Noxious stimuli are detected by terminal endings of primary nociceptive neurons, which are organized into morphologically complex terminal trees. The information from multiple terminals is integrated along the terminal tree, computing the neuronal output, which propagates toward the CNS, thus shaping the pain sensation. Here, we revealed that the structure of the nociceptive terminal tree determines the output of nociceptive neurons. We show that the integration of noxious information depends on the morphology of the terminal trees and how this integration and, consequently, the neuronal output change under pathologic conditions. Our findings help to predict how nociceptive neurons encode noxious stimuli and how this encoding changes in pathologic conditions, leading to pain.
Collapse
|
162
|
Mabbott NA, Bradford BM, Pal R, Young R, Donaldson DS. The Effects of Immune System Modulation on Prion Disease Susceptibility and Pathogenesis. Int J Mol Sci 2020; 21:E7299. [PMID: 33023255 PMCID: PMC7582561 DOI: 10.3390/ijms21197299] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 09/25/2020] [Accepted: 09/29/2020] [Indexed: 12/17/2022] Open
Abstract
Prion diseases are a unique group of infectious chronic neurodegenerative disorders to which there are no cures. Although prion infections do not stimulate adaptive immune responses in infected individuals, the actions of certain immune cell populations can have a significant impact on disease pathogenesis. After infection, the targeting of peripherally-acquired prions to specific immune cells in the secondary lymphoid organs (SLO), such as the lymph nodes and spleen, is essential for the efficient transmission of disease to the brain. Once the prions reach the brain, interactions with other immune cell populations can provide either host protection or accelerate the neurodegeneration. In this review, we provide a detailed account of how factors such as inflammation, ageing and pathogen co-infection can affect prion disease pathogenesis and susceptibility. For example, we discuss how changes to the abundance, function and activation status of specific immune cell populations can affect the transmission of prion diseases by peripheral routes. We also describe how the effects of systemic inflammation on certain glial cell subsets in the brains of infected individuals can accelerate the neurodegeneration. A detailed understanding of the factors that affect prion disease transmission and pathogenesis is essential for the development of novel intervention strategies.
Collapse
Affiliation(s)
- Neil A. Mabbott
- The Roslin Institute & Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush, Midlothian EH25 9RG, UK; (B.M.B.); (R.P.); (R.Y.); (D.S.D.)
| | | | | | | | | |
Collapse
|
163
|
Ray PR, Wangzhou A, Ghneim N, Yousuf MS, Paige C, Tavares-Ferreira D, Mwirigi JM, Shiers S, Sankaranarayanan I, McFarland AJ, Neerukonda SV, Davidson S, Dussor G, Burton MD, Price TJ. A pharmacological interactome between COVID-19 patient samples and human sensory neurons reveals potential drivers of neurogenic pulmonary dysfunction. Brain Behav Immun 2020; 89:559-568. [PMID: 32497778 PMCID: PMC7263237 DOI: 10.1016/j.bbi.2020.05.078] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 05/28/2020] [Accepted: 05/29/2020] [Indexed: 12/21/2022] Open
Abstract
The SARS-CoV-2 virus infects cells of the airway and lungs in humans causing the disease COVID-19. This disease is characterized by cough, shortness of breath, and in severe cases causes pneumonia and acute respiratory distress syndrome (ARDS) which can be fatal. Bronchial alveolar lavage fluid (BALF) and plasma from mild and severe cases of COVID-19 have been profiled using protein measurements and bulk and single cell RNA sequencing. Onset of pneumonia and ARDS can be rapid in COVID-19, suggesting a potential neuronal involvement in pathology and mortality. We hypothesized that SARS-CoV-2 infection drives changes in immune cell-derived factors that then interact with receptors expressed by the sensory neuronal innervation of the lung to further promote important aspects of disease severity, including ARDS. We sought to quantify how immune cells might interact with sensory innervation of the lung in COVID-19 using published data from patients, existing RNA sequencing datasets from human dorsal root ganglion neurons and other sources, and a genome-wide ligand-receptor pair database curated for pharmacological interactions relevant for neuro-immune interactions. Our findings reveal a landscape of ligand-receptor interactions in the lung caused by SARS-CoV-2 viral infection and point to potential interventions to reduce the burden of neurogenic inflammation in COVID-19 pulmonary disease. In particular, our work highlights opportunities for clinical trials with existing or under development rheumatoid arthritis and other (e.g. CCL2, CCR5 or EGFR inhibitors) drugs to treat high risk or severe COVID-19 cases.
Collapse
Affiliation(s)
- Pradipta R Ray
- University of Texas at Dallas, School of Behavioral and Brain Sciences and Center for Advanced Pain Studies, Pain Neurobiology Research Group, USA.
| | - Andi Wangzhou
- University of Texas at Dallas, School of Behavioral and Brain Sciences and Center for Advanced Pain Studies, Pain Neurobiology Research Group, USA
| | - Nizar Ghneim
- University of Texas at Dallas, School of Behavioral and Brain Sciences and Center for Advanced Pain Studies, Pain Neurobiology Research Group, USA
| | - Muhammad S Yousuf
- University of Texas at Dallas, School of Behavioral and Brain Sciences and Center for Advanced Pain Studies, Pain Neurobiology Research Group, USA
| | - Candler Paige
- University of Texas at Dallas, School of Behavioral and Brain Sciences and Center for Advanced Pain Studies, Pain Neurobiology Research Group, USA
| | - Diana Tavares-Ferreira
- University of Texas at Dallas, School of Behavioral and Brain Sciences and Center for Advanced Pain Studies, Pain Neurobiology Research Group, USA
| | - Juliet M Mwirigi
- University of Texas at Dallas, School of Behavioral and Brain Sciences and Center for Advanced Pain Studies, Pain Neurobiology Research Group, USA
| | - Stephanie Shiers
- University of Texas at Dallas, School of Behavioral and Brain Sciences and Center for Advanced Pain Studies, Pain Neurobiology Research Group, USA
| | - Ishwarya Sankaranarayanan
- University of Texas at Dallas, School of Behavioral and Brain Sciences and Center for Advanced Pain Studies, Pain Neurobiology Research Group, USA
| | - Amelia J McFarland
- University of Texas at Dallas, School of Behavioral and Brain Sciences and Center for Advanced Pain Studies, Pain Neurobiology Research Group, USA
| | - Sanjay V Neerukonda
- University of Texas at Dallas, School of Behavioral and Brain Sciences and Center for Advanced Pain Studies, Pain Neurobiology Research Group, USA
| | - Steve Davidson
- University of Cincinnati, College of Medicine, Department of Anesthesiology, USA
| | - Gregory Dussor
- University of Texas at Dallas, School of Behavioral and Brain Sciences and Center for Advanced Pain Studies, Pain Neurobiology Research Group, USA
| | - Michael D Burton
- University of Texas at Dallas, School of Behavioral and Brain Sciences and Center for Advanced Pain Studies, Neuroimmunology and Behavior Research Group, USA
| | - Theodore J Price
- University of Texas at Dallas, School of Behavioral and Brain Sciences and Center for Advanced Pain Studies, Pain Neurobiology Research Group, USA.
| |
Collapse
|
164
|
Zhu X, Zhou W, Jin Y, Tang H, Cao P, Mao Y, Xie W, Zhang X, Zhao F, Luo MH, Wang H, Li J, Tao W, Farzinpour Z, Wang L, Li X, Li J, Tang ZQ, Zhou C, Pan ZZ, Zhang Z. A Central Amygdala Input to the Parafascicular Nucleus Controls Comorbid Pain in Depression. Cell Rep 2020; 29:3847-3858.e5. [PMID: 31851918 DOI: 10.1016/j.celrep.2019.11.003] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 07/22/2019] [Accepted: 10/31/2019] [Indexed: 12/20/2022] Open
Abstract
While comorbid pain in depression (CP) occurs at a high rate worldwide, the neural connections underlying the core symptoms of CP have yet to be elucidated. Here, we define a pathway whereby GABAergic neurons from the central nucleus of the amygdala (GABACeA) project to glutamatergic neurons in the parafascicular nucleus (GluPF). These GluPF neurons relay directly to neurons in the second somatosensory cortex (S2), a well-known area involved in pain signal processing. Enhanced inhibition of the GABACeA→GluPF→S2 pathway is found in mice exhibiting CP symptoms. Reversing this pathway using chemogenetic or optogenetic approaches alleviates CP symptoms. Together, the current study demonstrates the putative importance of the GABACeA→GluPF→S2 pathway in controlling at least some aspects of CP.
Collapse
Affiliation(s)
- Xia Zhu
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Biophysics and Neurobiology, University of Science and Technology of China, Hefei 230027, PR China
| | - Wenjie Zhou
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Biophysics and Neurobiology, University of Science and Technology of China, Hefei 230027, PR China
| | - Yan Jin
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Biophysics and Neurobiology, University of Science and Technology of China, Hefei 230027, PR China
| | - Haodi Tang
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Biophysics and Neurobiology, University of Science and Technology of China, Hefei 230027, PR China
| | - Peng Cao
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Biophysics and Neurobiology, University of Science and Technology of China, Hefei 230027, PR China
| | - Yu Mao
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Biophysics and Neurobiology, University of Science and Technology of China, Hefei 230027, PR China; Department of Anesthesiology and Department of Pain Management, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, PR China
| | - Wen Xie
- Department of Psychology, Anhui Mental Health Center, Hefei 230026, PR China
| | - Xulai Zhang
- Department of Psychology, Anhui Mental Health Center, Hefei 230026, PR China
| | - Fei Zhao
- State Key Laboratory of Virology, CAS Center for Excellence in Brain Science and Intelligence Technology (CEBSIT), Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071, PR China
| | - Min-Hua Luo
- State Key Laboratory of Virology, CAS Center for Excellence in Brain Science and Intelligence Technology (CEBSIT), Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071, PR China
| | - Haitao Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Biophysics and Neurobiology, University of Science and Technology of China, Hefei 230027, PR China
| | - Jie Li
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Biophysics and Neurobiology, University of Science and Technology of China, Hefei 230027, PR China
| | - Wenjuan Tao
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Biophysics and Neurobiology, University of Science and Technology of China, Hefei 230027, PR China; Department of Anesthesiology and Department of Pain Management, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, PR China
| | - Zahra Farzinpour
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Biophysics and Neurobiology, University of Science and Technology of China, Hefei 230027, PR China
| | - Likui Wang
- Department of Anesthesiology and Department of Pain Management, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, PR China
| | - Xiangyao Li
- Key Laboratory of Medical Neurobiology of the Ministry of Health of China, Key Laboratory of Neurobiology of Zhejiang Province, Department of Neurobiology, Zhejiang University School of Medicine, Hangzhou 310058, PR China
| | - Juan Li
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Biophysics and Neurobiology, University of Science and Technology of China, Hefei 230027, PR China
| | - Zheng-Quan Tang
- Oregon Hearing Research Center and Vollum Institute, Oregon Health and Science University, Portland, OR 97239, USA
| | - Chenghua Zhou
- Department of Anesthesiology and Pain Medicine, the University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Zhizhong Z Pan
- Department of Anesthesiology and Pain Medicine, the University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
| | - Zhi Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Biophysics and Neurobiology, University of Science and Technology of China, Hefei 230027, PR China.
| |
Collapse
|
165
|
Gao Y, Bai L, Zhou W, Yang Y, Zhang J, Li L, Jiang M, Mi Y, Li TT, Zhang X, Zhang W, Xu JT. PARP-1-regulated TNF-α expression in the dorsal root ganglia and spinal dorsal horn contributes to the pathogenesis of neuropathic pain in rats. Brain Behav Immun 2020; 88:482-496. [PMID: 32283287 DOI: 10.1016/j.bbi.2020.04.019] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 04/08/2020] [Accepted: 04/09/2020] [Indexed: 01/04/2023] Open
Abstract
Emerging evidence has implicated poly-(ADP-ribose) polymerase 1 (PARP-1), a transcriptional coregulator, in a variety of inflammatory diseases. In the current study, the role of PARP-1 in neuropathic pain and the underlying mechanisms were investigated. Neuropathic pain was determined by assessing the paw withdrawal threshold (PWT) and paw withdrawal latency (PWL) following lumbar 5 spinal nerve ligation (SNL) in male rates. Western blotting, qRT-PCR, immunohistochemistry, chromatin immunoprecipitation (ChIP), and Co-IP assays were performed to elucidate the mechanisms. The results showed that SNL resulted in a significant increase in the expression and activation of PARP-1 in the ipsilateral L4/5 dorsal root ganglia (DRG) and spinal dorsal horn, which occurred on day one, reached peak on day 7, and persisted more than 2 weeks after surgery. Double immunofluorescence staining revealed that PARP-1 was expressed exclusively in DRG A-type and C-type neurons. In the spinal cord, PARP-1 mainly colocalized with the neuronal marker NeuN and the astrocytic marker GFAP specifically in the superficial lamina. Prior intrathecal (i.t.) injection of PJ-34, a PARPs inhibitor, or Tiq-A, a specific PARP-1 inhibitor, dose-dependently prevented the reductions in PWT and PWL following SNL. Established neuropathic pain-like hypersensitivity was also attenuated with i.t. injection of PJ-34 and Tiq-A starting on day 7 following SNL, a timepoint at which neuropathic pain was fully established. SNL-induced mechanical allodynia and thermal hyperalgesia were also alleviated by i.t. injection of PARP-1 siRNA following a reduction in PARP-1 expression in the dorsal horn. Moreover, the SNL-induced increases in TNF-α protein and mRNA in the dorsal horn and DRG were dramatically suppressed by i.t. injection of Tiq-A or PARP-1 siRNA. The i.t. lipopolysaccharide (LPS)-induced increase in the production of TNF-α in the dorsal horn was also inhibited by prior to i.t. injection of PARP-1 siRNA. Results of ChIP assay showed that SNL-induced PARP-1 activation promoted the binding of NF-κB p65 with the TNF-α promoter in the dorsal horn and that PARP-1 inhibition reduced this binding and suppressed TNF-α expression. Co-IP assay revealed that SNL caused a significant increase in the level of histone H1 poly(ADP)-ribosylation. Together, these results indicate that PARP-1-regulated TNF-α expression in the DRG and spinal dorsal horn following SNL contributes to the development and maintenance of neuropathic pain. Targeting PARP-1 might be a promising therapeutic strategy for the treatment of the chronic pain.
Collapse
Affiliation(s)
- Yan Gao
- Department of Physiology and Neurobiology, School of Basic Medical Sciences, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, China
| | - Liying Bai
- Department of Physiology and Neurobiology, School of Basic Medical Sciences, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, China; Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital, Zhengzhou University, 1 Jianshe East Road, Zhengzhou 450052, China
| | - Wenjuan Zhou
- Department of Physiology and Neurobiology, School of Basic Medical Sciences, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, China; Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital, Zhengzhou University, 1 Jianshe East Road, Zhengzhou 450052, China
| | - Yin Yang
- Department of Physiology and Neurobiology, School of Basic Medical Sciences, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, China
| | - Jian Zhang
- Department of Physiology and Neurobiology, School of Basic Medical Sciences, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, China
| | - Liren Li
- Department of Physiology and Neurobiology, School of Basic Medical Sciences, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, China
| | - Mingjun Jiang
- Department of Physiology and Neurobiology, School of Basic Medical Sciences, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, China
| | - Yang Mi
- Department of Physiology and Neurobiology, School of Basic Medical Sciences, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, China
| | - Tong-Tong Li
- Department of Physiology and Neurobiology, School of Basic Medical Sciences, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, China
| | - Xuan Zhang
- Department of Physiology and Neurobiology, School of Basic Medical Sciences, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, China
| | - Wei Zhang
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital, Zhengzhou University, 1 Jianshe East Road, Zhengzhou 450052, China
| | - Ji-Tian Xu
- Department of Physiology and Neurobiology, School of Basic Medical Sciences, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, China; Neuroscience Research Institute, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, China.
| |
Collapse
|
166
|
Todd N, McDannold N, Borsook D. Targeted manipulation of pain neural networks: The potential of focused ultrasound for treatment of chronic pain. Neurosci Biobehav Rev 2020; 115:238-250. [PMID: 32534900 PMCID: PMC7483565 DOI: 10.1016/j.neubiorev.2020.06.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 04/24/2020] [Accepted: 06/04/2020] [Indexed: 12/29/2022]
Abstract
Focused ultrasound (FUS) is a promising technology for facilitating treatment of brain diseases including chronic pain. Focused ultrasound is a unique modality for delivering therapeutic levels of energy into the body, including the central nervous system (CNS). It is non-invasive and can target spatially localized effects through the intact skull to cortical or subcortical regions of the brain. FUS can achieve three different mechanisms of action in the brain that are relevant for chronic pain treatment: (1) localized thermal ablation of neural tissue; (2) localized and transient disruption of the blood-brain barrier for targeted drug delivery to CNS structures; and (3) inhibition or stimulation of neuronal activity in targeted regions. This review provides an in-depth look at the technology of FUS with emphasis placed on applications to CNS-based treatments of chronic pain. While still in the early stages of clinical translation and with some technical challenges remaining, we suggest that FUS has great potential as a novel approach for manipulating CNS networks involved in pain treatment.
Collapse
Affiliation(s)
- Nick Todd
- Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States; Center for Pain and the Brain, 1 Autumn Street, Boston Children's Hospital, Boston, MA, 02115, United States.
| | - Nathan McDannold
- Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
| | - David Borsook
- Center for Pain and the Brain, 1 Autumn Street, Boston Children's Hospital, Boston, MA, 02115, United States; Department of Anesthesia, Perioperative, and Pain Medicine, Boston Children's Hospital, Harvard Medical School, Boston, MA, 02115, United States
| |
Collapse
|
167
|
Mechanisms Mediating High-Molecular-Weight Hyaluronan-Induced Antihyperalgesia. J Neurosci 2020; 40:6477-6488. [PMID: 32665406 DOI: 10.1523/jneurosci.0166-20.2020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 07/01/2020] [Accepted: 07/04/2020] [Indexed: 11/21/2022] Open
Abstract
We evaluated the mechanism by which high-molecular-weight hyaluronan (HMWH) attenuates nociceptor sensitization, in the setting of inflammation. HMWH attenuated mechanical hyperalgesia induced by the inflammatory mediator prostaglandin E2 (PGE2) in male and female rats. Intrathecal administration of an oligodeoxynucleotide antisense (AS-ODN) to mRNA for cluster of differentiation 44 (CD44), the cognate hyaluronan receptor, and intradermal administration of A5G27, a CD44 receptor antagonist, both attenuated antihyperalgesia induced by HMWH. In male rats, HMWH also signals via Toll-like receptor 4 (TLR4), and AS-ODN for TLR4 mRNA administered intrathecally, attenuated HMWH-induced antihyperalgesia. Since HMWH signaling is dependent on CD44 clustering in lipid rafts, we pretreated animals with methyl-β-cyclodextrin (MβCD), which disrupts lipid rafts. MβCD markedly attenuated HMWH-induced antihyperalgesia. Inhibitors for components of intracellular signaling pathways activated by CD44, including phospholipase C and phosphoinositide 3-kinase (PI3K), also attenuated HMWH-induced antihyperalgesia. Furthermore, in vitro application of HMWH attenuated PGE2-induced sensitization of tetrodotoxin-resistant sodium current, in small-diameter dorsal root ganglion neurons, an effect that was attenuated by a PI3K inhibitor. Our results indicate a central role of CD44 signaling in HMWH-induced antihyperalgesia and suggest novel therapeutic targets, downstream of CD44, for the treatment of pain generated by nociceptor sensitization.SIGNIFICANCE STATEMENT High-molecular-weight-hyaluronan (HMWH) is used to treat osteoarthritis and other pain syndromes. In this study we demonstrate that attenuation of inflammatory hyperalgesia by HMWH is mediated by its action at cluster of differentiation 44 (CD44) and activation of its downstream signaling pathways, including RhoGTPases (RhoA and Rac1), phospholipases (phospholipases Cε and Cγ1), and phosphoinositide 3-kinase, in nociceptors. These findings contribute to our understanding of the antihyperalgesic effect of HMWH and support the hypothesis that CD44 and its downstream signaling pathways represent novel therapeutic targets for the treatment of inflammatory pain.
Collapse
|
168
|
Wangzhou A, McIlvried LA, Paige C, Barragan-Iglesias P, Shiers S, Ahmad A, Guzman CA, Dussor G, Ray PR, Gereau RW, Price TJ. Pharmacological target-focused transcriptomic analysis of native vs cultured human and mouse dorsal root ganglia. Pain 2020; 161:1497-1517. [PMID: 32197039 PMCID: PMC7305999 DOI: 10.1097/j.pain.0000000000001866] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Dorsal root ganglion (DRG) neurons detect sensory inputs and are crucial for pain processing. They are often studied in vitro as dissociated cell cultures with the assumption that this reasonably represents in vivo conditions. However, to the best of our knowledge, no study has directly compared genome-wide transcriptomes of DRG tissue in vivo versus in vitro or between laboratories and culturing protocols. Comparing RNA sequencing-based transcriptomes of native to cultured (4 days in vitro) human or mouse DRG, we found that the overall expression levels of many ion channels and G-protein-coupled receptors specifically expressed in neurons are markedly lower although still expressed in culture. This suggests that most pharmacological targets expressed in vivo are present under the condition of dissociated cell culture, but with changes in expression levels. The reduced relative expression for neuronal genes in human DRG cultures is likely accounted for by increased expression of genes in fibroblast-like and other proliferating cells, consistent with their mitotic status in these cultures. We found that the expression of a subset of genes typically expressed in neurons increased in human and mouse DRG cultures relative to the intact ganglion, including genes associated with nerve injury or inflammation in preclinical models such as BDNF, MMP9, GAL, and ATF3. We also found a striking upregulation of a number of inflammation-associated genes in DRG cultures, although many were different between mouse and human. Our findings suggest an injury-like phenotype in DRG cultures that has important implications for the use of this model system for pain drug discovery.
Collapse
Affiliation(s)
- Andi Wangzhou
- The University of Texas at Dallas, School of Behavioral and
Brain Sciences and Center for Advanced Pain Studies, 800 W Campbell Rd. Richardson,
TX, 75080, USA
| | - Lisa A. McIlvried
- Washington University Pain Center and Department of
Anesthesiology, Washington University School of Medicine
| | - Candler Paige
- The University of Texas at Dallas, School of Behavioral and
Brain Sciences and Center for Advanced Pain Studies, 800 W Campbell Rd. Richardson,
TX, 75080, USA
| | - Paulino Barragan-Iglesias
- The University of Texas at Dallas, School of Behavioral and
Brain Sciences and Center for Advanced Pain Studies, 800 W Campbell Rd. Richardson,
TX, 75080, USA
| | - Stephanie Shiers
- The University of Texas at Dallas, School of Behavioral and
Brain Sciences and Center for Advanced Pain Studies, 800 W Campbell Rd. Richardson,
TX, 75080, USA
| | - Ayesha Ahmad
- The University of Texas at Dallas, School of Behavioral and
Brain Sciences and Center for Advanced Pain Studies, 800 W Campbell Rd. Richardson,
TX, 75080, USA
| | - Carolyn A. Guzman
- The University of Texas at Dallas, School of Behavioral and
Brain Sciences and Center for Advanced Pain Studies, 800 W Campbell Rd. Richardson,
TX, 75080, USA
| | - Gregory Dussor
- The University of Texas at Dallas, School of Behavioral and
Brain Sciences and Center for Advanced Pain Studies, 800 W Campbell Rd. Richardson,
TX, 75080, USA
| | - Pradipta R. Ray
- The University of Texas at Dallas, School of Behavioral and
Brain Sciences and Center for Advanced Pain Studies, 800 W Campbell Rd. Richardson,
TX, 75080, USA
| | - Robert W. Gereau
- Washington University Pain Center and Department of
Anesthesiology, Washington University School of Medicine
| | - Theodore J. Price
- The University of Texas at Dallas, School of Behavioral and
Brain Sciences and Center for Advanced Pain Studies, 800 W Campbell Rd. Richardson,
TX, 75080, USA
| |
Collapse
|
169
|
Tao X, Lee MS, Donnelly CR, Ji RR. Neuromodulation, Specialized Proresolving Mediators, and Resolution of Pain. Neurotherapeutics 2020; 17:886-899. [PMID: 32696274 PMCID: PMC7609770 DOI: 10.1007/s13311-020-00892-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The current crises in opioid abuse and chronic pain call for the development of nonopioid and nonpharmacological therapeutics for pain relief. Neuromodulation-based approaches, such as spinal cord stimulation, dorsal root ganglion simulation, and nerve stimulation including vagus nerve stimulation, have shown efficacy in achieving pain control in preclinical and clinical studies. However, the mechanisms by which neuromodulation alleviates pain are not fully understood. Accumulating evidence suggests that neuromodulation regulates inflammation and neuroinflammation-a localized inflammation in peripheral nerves, dorsal root ganglia/trigeminal ganglia, and spinal cord/brain-through neuro-immune interactions. Specialized proresolving mediators (SPMs) such as resolvins, protectins, maresins, and lipoxins are lipid molecules produced during the resolution phase of inflammation and exhibit multiple beneficial effects in resolving inflammation in various animal models. Recent studies suggest that SPMs inhibit inflammatory pain, postoperative pain, neuropathic pain, and cancer pain in rodent models via immune, glial, and neuronal modulations. It is noteworthy that sham surgery is sufficient to elevate resolvin levels and may serve as a model of resolution. Interestingly, it has been shown that the vagus nerve produces SPMs and vagus nerve stimulation (VNS) induces SPM production in vitro. In this review, we discuss how neuromodulation such as VNS controls pain via immunomodulation and neuro-immune interactions and highlight possible involvement of SPMs. In particular, we demonstrate that VNS via auricular electroacupuncture effectively attenuates chemotherapy-induced neuropathic pain. Furthermore, auricular stimulation is able to increase resolvin levels in mice. Thus, we propose that neuromodulation may control pain and inflammation/neuroinflammatioin via SPMs. Finally, we discuss key questions that remain unanswered in our understanding of how neuromodulation-based therapies provide short-term and long-term pain relief.
Collapse
Affiliation(s)
- Xueshu Tao
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, NC, 27710, USA
| | - Michael S Lee
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, NC, 27710, USA
| | - Christopher R Donnelly
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, NC, 27710, USA
| | - Ru-Rong Ji
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, NC, 27710, USA.
- Department of Neurobiology, Duke University Medical Center, Durham, NC, 27710, USA.
- Department of Cell Biology, Duke University Medical Center, Durham, NC, 27710, USA.
| |
Collapse
|
170
|
Staats Pires A, Tan VX, Heng B, Guillemin GJ, Latini A. Kynurenine and Tetrahydrobiopterin Pathways Crosstalk in Pain Hypersensitivity. Front Neurosci 2020; 14:620. [PMID: 32694973 PMCID: PMC7338796 DOI: 10.3389/fnins.2020.00620] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 05/19/2020] [Indexed: 12/19/2022] Open
Abstract
Despite the identification of molecular mechanisms associated with pain persistence, no significant therapeutic improvements have been made. Advances in the understanding of the molecular mechanisms that induce pain hypersensitivity will allow the development of novel, effective, and safe therapies for chronic pain. Various pro-inflammatory cytokines are known to be increased during chronic pain, leading to sustained inflammation in the peripheral and central nervous systems. The pro-inflammatory environment activates additional metabolic routes, including the kynurenine (KYN) and tetrahydrobiopterin (BH4) pathways, which generate bioactive soluble metabolites with the potential to modulate neuropathic and inflammatory pain sensitivity. Inflammation-induced upregulation of indoleamine 2,3-dioxygenase 1 (IDO1) and guanosine triphosphate cyclohydrolase I (GTPCH), both rate-limiting enzymes of KYN and BH4 biosynthesis, respectively, have been identified in experimental chronic pain models as well in biological samples from patients affected by chronic pain. Inflammatory inducible KYN and BH4 pathways upregulation is characterized by increase in pronociceptive compounds, such as quinolinic acid (QUIN) and BH4, in addition to inflammatory mediators such as interferon gamma (IFN-γ) and tumor necrosis factor alpha (TNF-α). As expected, the pharmacologic and genetic experimental manipulation of both pathways confers analgesia. Many metabolic intermediates of these two pathways such as BH4, are known to sustain pain, while others, like xanthurenic acid (XA; a KYN pathway metabolite) have been recently shown to be an inhibitor of BH4 synthesis, opening a new avenue to treat chronic pain. This review will focus on the KYN/BH4 crosstalk in chronic pain and the potential modulation of these metabolic pathways that could induce analgesia without dependence or abuse liability.
Collapse
Affiliation(s)
- Ananda Staats Pires
- Neuroinflammation Group, Department of Biomedical Sciences, Centre for Motor Neuron Disease Research, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, NSW, Australia
- Laboratório de Bioenergética e Estresse Oxidativo, Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Vanessa X. Tan
- Neuroinflammation Group, Department of Biomedical Sciences, Centre for Motor Neuron Disease Research, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, NSW, Australia
| | - Benjamin Heng
- Neuroinflammation Group, Department of Biomedical Sciences, Centre for Motor Neuron Disease Research, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, NSW, Australia
| | - Gilles J. Guillemin
- Neuroinflammation Group, Department of Biomedical Sciences, Centre for Motor Neuron Disease Research, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, NSW, Australia
| | - Alexandra Latini
- Laboratório de Bioenergética e Estresse Oxidativo, Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| |
Collapse
|
171
|
Eichwald T, Talbot S. Neuro-Immunity Controls Obesity-Induced Pain. Front Hum Neurosci 2020; 14:181. [PMID: 32581740 PMCID: PMC7295985 DOI: 10.3389/fnhum.2020.00181] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 04/23/2020] [Indexed: 12/16/2022] Open
Abstract
The prevalence of obesity skyrocketed over the past decades to become a significant public health problem. Obesity is recognized as a low-grade inflammatory disease and is linked with several comorbidities such as diabetes, circulatory disease, common neurodegenerative diseases, as well as chronic pain. Adipocytes are a major neuroendocrine organ that continually, and systemically, releases pro-inflammatory factors. While the exact mechanisms driving obesity-induced pain remain poorly defined, nociceptor hypersensitivity may result from the systemic state of inflammation characteristic of obesity as well as weight surplus-induced mechanical stress. Obesity and pain also share various genetic mutations, lifestyle risk factors, and metabolic pathways. For instance, fat pads are often found hyper-innervated and rich in immune cell types of multiple origins. These immunocytes release cytokines, amplifying nociceptor function, which, in turn, via locally released neuropeptides, sustain immunocytes' function. Here, we posit that along with mechanical stress stemming from extra weight, the local neuro-immune interplay occurring within the fat pads maintains the state of chronic low-grade inflammation and heightens sensory hypersensitivity. Overall, stopping such harmful neuro-immune crosstalk may constitute a novel pathway to prevent obesity-associated comorbidities, including neuronal hypersensitivity.
Collapse
Affiliation(s)
- Tuany Eichwald
- Département de Pharmacologie et Physiologie, Faculté de Médecine, Université de Montréal, Montreal, QC, Canada
- Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Sebastien Talbot
- Département de Pharmacologie et Physiologie, Faculté de Médecine, Université de Montréal, Montreal, QC, Canada
| |
Collapse
|
172
|
Su Q, Song Y, Zhao R, Liang M. A review on the ongoing quest for a pain signature in the human brain. BRAIN SCIENCE ADVANCES 2020. [DOI: 10.26599/bsa.2019.9050024] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Developing an objective biomarker for pain assessment is crucial for understanding neural coding mechanisms of pain in the human brain as well as for effective treatment of pain disorders. Neuroimaging techniques have been proven to be powerful tools in the ongoing quest for a pain signature in the human brain. Although there is still a long way to go before achieving a truly successful pain signature based on neuroimaging techniques, important progresses have been made through great efforts in the last two decades by the Pain Society. Here, we focus on neural responses to transient painful stimuli in healthy people, and review the relevant studies on the identification of a neuroimaging signature for pain.
Collapse
Affiliation(s)
- Qian Su
- Department of Molecular Imaging and Nuclear Medicine, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for China, Tianjin 300060, China
- These authors contributed equally to this work
| | - Yingchao Song
- School of Medical Imaging and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University, Tianjin 300070, China
- These authors contributed equally to this work
| | - Rui Zhao
- Department of Orthopedics Surgery, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Meng Liang
- School of Medical Imaging and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University, Tianjin 300070, China
| |
Collapse
|
173
|
Quirion B, Bergeron F, Blais V, Gendron L. The Delta-Opioid Receptor; a Target for the Treatment of Pain. Front Mol Neurosci 2020; 13:52. [PMID: 32431594 PMCID: PMC7214757 DOI: 10.3389/fnmol.2020.00052] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 03/13/2020] [Indexed: 12/15/2022] Open
Abstract
Nowadays, pain represents one of the most important societal burdens. Current treatments are, however, too often ineffective and/or accompanied by debilitating unwanted effects for patients dealing with chronic pain. Indeed, the prototypical opioid morphine, as many other strong analgesics, shows harmful unwanted effects including respiratory depression and constipation, and also produces tolerance, physical dependence, and addiction. The urgency to develop novel treatments against pain while minimizing adverse effects is therefore crucial. Over the years, the delta-opioid receptor (DOP) has emerged as a promising target for the development of new pain therapies. Indeed, targeting DOP to treat chronic pain represents a timely alternative to existing drugs, given the weak unwanted effects spectrum of DOP agonists. Here, we review the current knowledge supporting a role for DOP and its agonists for the treatment of pain. More specifically, we will focus on the cellular and subcellular localization of DOP in the nervous system. We will also discuss in further detail the molecular and cellular mechanisms involved in controlling the cellular trafficking of DOP, known to differ significantly from most G protein-coupled receptors. This review article will allow a better understanding of how DOP represents a promising target to develop new treatments for pain management as well as where we stand as of our ability to control its cellular trafficking and cell surface expression.
Collapse
Affiliation(s)
- Béatrice Quirion
- Faculté de Médecine et des Sciences de la Santé, Département de Pharmacologie-Physiologie, Institut de Pharmacologie de Sherbrooke, Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Francis Bergeron
- Faculté de Médecine et des Sciences de la Santé, Département de Pharmacologie-Physiologie, Institut de Pharmacologie de Sherbrooke, Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Véronique Blais
- Faculté de Médecine et des Sciences de la Santé, Département de Pharmacologie-Physiologie, Institut de Pharmacologie de Sherbrooke, Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Louis Gendron
- Faculté de Médecine et des Sciences de la Santé, Département de Pharmacologie-Physiologie, Institut de Pharmacologie de Sherbrooke, Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Université de Sherbrooke, Sherbrooke, QC, Canada
| |
Collapse
|
174
|
Ray PR, Wangzhou A, Ghneim N, Yousuf MS, Paige C, Tavares-Ferreira D, Mwirigi JM, Shiers S, Sankaranarayanan I, McFarland AJ, Neerukonda SV, Davidson S, Dussor G, Burton MD, Price TJ. A pharmacological interactome between COVID-19 patient samples and human sensory neurons reveals potential drivers of neurogenic pulmonary dysfunction. SSRN 2020:3581446. [PMID: 32714114 PMCID: PMC7366818 DOI: 10.2139/ssrn.3581446] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 05/04/2020] [Indexed: 11/15/2022]
Abstract
The SARS-CoV-2 virus infects cells of the airway and lungs in humans causing the disease COVID-19. This disease is characterized by cough, shortness of breath, and in severe cases causes pneumonia and acute respiratory distress syndrome (ARDS) which can be fatal. Bronchial alveolar lavage fluid (BALF) and plasma from mild and severe cases of COVID-19 have been profiled using protein measurements and bulk and single cell RNA sequencing. Onset of pneumonia and ARDS can be rapid in COVID-19, suggesting a potential neuronal involvement in pathology and mortality. We sought to quantify how immune cells might interact with sensory innervation of the lung in COVID-19 using published data from patients, existing RNA sequencing datasets from human dorsal root ganglion neurons and other sources, and a genome-wide ligand-receptor pair database curated for pharmacological interactions relevant for neuro-immune interactions. Our findings reveal a landscape of ligand-receptor interactions in the lung caused by SARS-CoV-2 viral infection and point to potential interventions to reduce the burden of neurogenic inflammation in COVID-19 disease. In particular, our work highlights opportunities for clinical trials with existing or under development rheumatoid arthritis and other (e.g. CCL2, CCR5 or EGFR inhibitors) drugs to treat high risk or severe COVID-19 cases.
Collapse
Affiliation(s)
- Pradipta R. Ray
- University of Texas at Dallas, School of Behavioral and Brain Sciences and Center for Advanced Pain Studies
| | - Andi Wangzhou
- University of Texas at Dallas, School of Behavioral and Brain Sciences and Center for Advanced Pain Studies
| | - Nizar Ghneim
- University of Texas at Dallas, School of Behavioral and Brain Sciences and Center for Advanced Pain Studies
| | - Muhammad S. Yousuf
- University of Texas at Dallas, School of Behavioral and Brain Sciences and Center for Advanced Pain Studies
| | - Candler Paige
- University of Texas at Dallas, School of Behavioral and Brain Sciences and Center for Advanced Pain Studies
| | - Diana Tavares-Ferreira
- University of Texas at Dallas, School of Behavioral and Brain Sciences and Center for Advanced Pain Studies
| | - Juliet M. Mwirigi
- University of Texas at Dallas, School of Behavioral and Brain Sciences and Center for Advanced Pain Studies
| | - Stephanie Shiers
- University of Texas at Dallas, School of Behavioral and Brain Sciences and Center for Advanced Pain Studies
| | - Ishwarya Sankaranarayanan
- University of Texas at Dallas, School of Behavioral and Brain Sciences and Center for Advanced Pain Studies
| | - Amelia J. McFarland
- University of Texas at Dallas, School of Behavioral and Brain Sciences and Center for Advanced Pain Studies
| | - Sanjay V. Neerukonda
- University of Texas at Dallas, School of Behavioral and Brain Sciences and Center for Advanced Pain Studies
| | - Steve Davidson
- University of Cincinnati, College of Medicine, Department of Anesthesiology
| | - Gregory Dussor
- University of Texas at Dallas, School of Behavioral and Brain Sciences and Center for Advanced Pain Studies
| | - Michael D. Burton
- University of Texas at Dallas, School of Behavioral and Brain Sciences and Center for Advanced Pain Studies
| | - Theodore J. Price
- University of Texas at Dallas, School of Behavioral and Brain Sciences and Center for Advanced Pain Studies
| |
Collapse
|
175
|
Buchheit T, Huh Y, Maixner W, Cheng J, Ji RR. Neuroimmune modulation of pain and regenerative pain medicine. J Clin Invest 2020; 130:2164-2176. [PMID: 32250346 PMCID: PMC7190995 DOI: 10.1172/jci134439] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2023] Open
Abstract
Regenerative pain medicine, which seeks to harness the body's own reparative capacity, is rapidly emerging as a field within pain medicine and orthopedics. It is increasingly appreciated that common analgesic mechanisms for these treatments depend on neuroimmune modulation. In this Review, we discuss recent progress in mechanistic understanding of nociceptive sensitization in chronic pain with a focus on neuroimmune modulation. We also examine the spectrum of regenerative outcomes, including preclinical and clinical outcomes. We further distinguish the analgesic mechanisms of regenerative therapies from those of cellular replacement, creating a conceptual and mechanistic framework to evaluate future research on regenerative medicine.
Collapse
Affiliation(s)
- Thomas Buchheit
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, North Carolina, USA
- Anesthesiology Service, Durham Veterans Affairs Health Care System, Durham, North Carolina, USA
| | - Yul Huh
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, North Carolina, USA
- Department of Cell Biology, Duke University Medical Center, Durham, North Carolina, USA
| | - William Maixner
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, North Carolina, USA
| | - Jianguo Cheng
- Departments of Pain Management and Neurosciences, Cleveland Clinic, Cleveland, Ohio, USA
| | - Ru-Rong Ji
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, North Carolina, USA
- Department of Cell Biology, Duke University Medical Center, Durham, North Carolina, USA
- Department of Neurobiology, Duke University Medical Center, Durham, North Carolina, USA
| |
Collapse
|
176
|
Telailia N, Fisson S, Frih H. Compression of The Sciatic Nerve May not Contribute to Ipsilateral Hyperalgesia Development in Ovariectomized Female Rats! CELL JOURNAL 2020; 22:548-555. [PMID: 32347049 PMCID: PMC7211275 DOI: 10.22074/cellj.2021.6907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Accepted: 08/06/2019] [Indexed: 11/15/2022]
Abstract
Objective von Frey Filament (vFF) is an aesthesiometer to measure paw withdrawal thresholds. Our aim was to
validate the manually von Frey test technique for assessing neuropathic pain behavioral signs in a sciatic nerve ligation
model.
Materials and Methods In this experimental study, peripheral neuropathic pain associated with sciatic nerve chronic
ligation (SN-CL) was induced. Filaments used against posterior pad mid-plantar region using a simplified up-down
method (SUDO). In addition to baseline withdrawal thresholds, the behavioral test was repeated after surgery thrice
more with an interval of ten days. vFF (2 to 26 g) were used in ascending order for hyperalgesia assessment.
Results In SN-CL rats, the results validate a loss of pain sensation, resulted in, long-lasting ipsilateral allodynia with
the development of contralateral allodynia later and an extraterritorial development of neuropathic signs. Variability
for the development of ipsilateral and contralateral allodynia over time was noted in sham (SH) control rats. SN-CL
group showed a contralateral hyperalgesia development just at the 16th-day after surgery with an absence of ipsilateral
hyperalgesia development at the different days of paw withdrawal thresholds measurements.
Conclusion Manually vFF test technique was successfully used for assessing neuropathic pain behavioral signs in
sciatic a nerve ligation model with the absence of ipsilateral hyperalgesia development.
Collapse
Affiliation(s)
- Nafissa Telailia
- Department of Biology, Faculty of Natural Science, University of Badji Mokhtar, Annaba, Algeria. Electronic Address:
| | - Sylvain Fisson
- National Institute of Health and Medical Research, Joint Research Unit_S951, Evry, France.,Genethon, National Institute of Health and Medical Research, Joint Research Unit_S951, Evry, France.,Joint Research Unit_S951, University of Evry Val d'Essonne, Evry, France
| | - Hacène Frih
- Department of Biology, Faculty of Natural Science, University of Badji Mokhtar, Annaba, Algeria
| |
Collapse
|
177
|
Canonical Transient Receptor Potential (TRPC) Channels in Nociception and Pathological Pain. Neural Plast 2020; 2020:3764193. [PMID: 32273889 PMCID: PMC7115173 DOI: 10.1155/2020/3764193] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 02/26/2020] [Accepted: 03/07/2020] [Indexed: 12/13/2022] Open
Abstract
Chronic pathological pain is one of the most intractable clinical problems faced by clinicians and can be devastating for patients. Despite much progress we have made in understanding chronic pain in the last decades, its underlying mechanisms remain elusive. It is assumed that abnormal increase of calcium levels in the cells is a key determinant in the transition from acute to chronic pain. Exploring molecular players mediating Ca2+ entry into cells and molecular mechanisms underlying activity-dependent changes in Ca2+ signaling in the somatosensory pain pathway is therefore helpful towards understanding the development of chronic, pathological pain. Canonical transient receptor potential (TRPC) channels form a subfamily of nonselective cation channels, which permit the permeability of Ca2+ and Na+ into the cells. Initiation of Ca2+ entry pathways by these channels triggers the development of many physiological and pathological functions. In this review, we will focus on the functional implication of TRPC channels in nociception with the elucidation of their role in the detection of external stimuli and nociceptive hypersensitivity.
Collapse
|
178
|
Chen Y, Zhang Y, Sun K, Yan H. Higher TGF-β2 Level in the Aqueous Humor of the Second Eye Versus the First Eye in the Course of Sequential Cataract Surgery. Ocul Immunol Inflamm 2020; 28:439-445. [PMID: 30973281 DOI: 10.1080/09273948.2019.1578888] [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] [Indexed: 01/01/2023]
Abstract
Purpose: To assess the differences in cytokine levels in the aqueous humor (AH) of bilateral eyes receiving sequential phacoemulsification and intraocular lens implantation.Methods: The levels of 33 cytokines in AH samples collected from separate single-eye operations of 26 age-related cataract patients who experiencing sequential cataract surgery were compared between the first-eye and second-eye groups.Results: The AH level of transforming growth factor beta 2 (TGF-β2), an immunosuppression regulator, in the second-eye group was significantly higher than that in the first-eye group (p = 0.002). No differences in the concentrations or detection rates of other cytokines were observed between the first- and second-eye groups.Conclusion: During bilateral sequential cataract surgery, the AH of the second eye had a higher level of TGF-β2 but not of proinflammatory cytokines or chemokines compared with those in the first eye, implying a protective mechanism preventing the sympathetic immune reaction induced by the first-eye cataract surgery.
Collapse
Affiliation(s)
- Ying Chen
- Department of Ophthalmology, First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Ophthalmology, Chongqing Eye Institute, Chongqing, China
| | - Yu Zhang
- Department of Ophthalmology, First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Ophthalmology, Chongqing Eye Institute, Chongqing, China
| | - Kexin Sun
- Department of Ophthalmology, First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Ophthalmology, Chongqing Eye Institute, Chongqing, China
| | - Hong Yan
- Department of Ophthalmology, First Affiliated Hospital of Chongqing Medical University, Chongqing Key Laboratory of Ophthalmology, Chongqing Eye Institute, Chongqing, China.,Department of Ophthalmology, Xi'an No. 4 Hospital, Shaanxi Eye Hospital, Affiliated Guangren Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi Province, China
| |
Collapse
|
179
|
Talagas M, Lebonvallet N, Berthod F, Misery L. Lifting the veil on the keratinocyte contribution to cutaneous nociception. Protein Cell 2020; 11:239-250. [PMID: 31907794 PMCID: PMC7093357 DOI: 10.1007/s13238-019-00683-9] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 12/16/2019] [Indexed: 12/22/2022] Open
Abstract
Cutaneous nociception is essential to prevent individuals from sustaining injuries. According to the conventional point of view, the responses to noxious stimuli are thought to be exclusively initiated by sensory neurons, whose activity would be at most modulated by keratinocytes. However recent studies have demonstrated that epidermal keratinocytes can also act as primary nociceptive transducers as a supplement to sensory neurons. To enlighten our understanding of cutaneous nociception, this review highlights recent and relevant findings on the cellular and molecular elements that underlie the contribution of epidermal keratinocytes as nociceptive modulators and noxious sensors, both under healthy and pathological conditions.
Collapse
Affiliation(s)
- Matthieu Talagas
- Univ Brest, LIEN, 29200, Brest, France.
- Laboratoire d'Organogenèse Expérimentale (LOEX), University of Laval, Quebec, Canada.
- Department of Dermatology, Brest University Hospital, Brest, France.
- Univ Brest, IBSAM (Institut Brestois de Santé Agro matière), 29200, Brest, France.
| | - Nicolas Lebonvallet
- Univ Brest, LIEN, 29200, Brest, France
- Univ Brest, IBSAM (Institut Brestois de Santé Agro matière), 29200, Brest, France
| | - François Berthod
- Laboratoire d'Organogenèse Expérimentale (LOEX), University of Laval, Quebec, Canada
| | - Laurent Misery
- Univ Brest, LIEN, 29200, Brest, France
- Department of Dermatology, Brest University Hospital, Brest, France
- Univ Brest, IBSAM (Institut Brestois de Santé Agro matière), 29200, Brest, France
| |
Collapse
|
180
|
Atmaramani R, Pancrazio JJ, Black BJ. Adaptation of robust Z' factor for assay quality assessment in microelectrode array based screening using adult dorsal root ganglion neurons. J Neurosci Methods 2020; 339:108699. [PMID: 32224158 DOI: 10.1016/j.jneumeth.2020.108699] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 03/04/2020] [Accepted: 03/23/2020] [Indexed: 01/02/2023]
Abstract
BACKGROUND Cell-based assays comprising primary sensory neurons cultured in vitro are an emerging tool for the screening and identification of potential analgesic compounds and chronic pain treatments. High-content screening (HCS) platforms for drug screening are characterized by a measure of assay quality indicator, such as the Z'-factor, which considers the signal dynamic range and data variation using control compounds only. Although widely accepted as a quality metric in high throughput screening (HTS), standard Z'-factor are not well-suited to indicate the quality of complex cell-based assays. NEW METHOD The present study describes a method to assess assay quality in the context of extracellular recordings from dorsal root ganglion (DRG) sensory neurons cultured on multi-well microelectrode arrays. Data transformations are applied to electrophysiological parameters, such as electrode and well spike rates, for valid normality assumptions and suitability for use as a sample signal. Importantly, using transformed well-wide metrics, a robust version of the Z'-factor was applied, based on the median and median absolute deviation, to indicate assay quality and assess hit identification of putative pharmacological compounds. RESULTS Application of appropriately scaled data and robust statistics ensured insensitivity to data variation and approximation of normal distribution. The use median and median absolute deviation of log transformed well spike rates in computing the Z'-factor revealed a value of 0.61, which is accepted as an "excellent assay." Known antagonists of nociceptor-specific voltage-gated sodium ion channels were identified as true hits in the present assay format under both spontaneous and thermally stimulated conditions. COMPARISON WITH EXISTING METHODS The present approach demonstrated a large signal dynamic range and reduced sensitivity to data variation compared to standard Z'-factor used widely in HTS. CONCLUSION Overall, the present study provides a statistical basis for the implementation of a HCS platform utilizing adult DRG neurons on microelectrode arrays.
Collapse
Affiliation(s)
- Rahul Atmaramani
- Department of Bioengineering, University of Texas at Dallas, Richardson, TX 75080, USA; Center for Advanced Pain Studies, University of Texas at Dallas, Richardson, TX 75080, USA
| | - Joseph J Pancrazio
- Department of Bioengineering, University of Texas at Dallas, Richardson, TX 75080, USA; Center for Advanced Pain Studies, University of Texas at Dallas, Richardson, TX 75080, USA
| | - Bryan J Black
- Department of Bioengineering, University of Texas at Dallas, Richardson, TX 75080, USA; Center for Advanced Pain Studies, University of Texas at Dallas, Richardson, TX 75080, USA.
| |
Collapse
|
181
|
Herzberg D, Strobel P, Ramirez-Reveco A, Werner M, Bustamante H. Chronic Inflammatory Lameness Increases Cytokine Concentration in the Spinal Cord of Dairy Cows. Front Vet Sci 2020; 7:125. [PMID: 32185190 PMCID: PMC7058553 DOI: 10.3389/fvets.2020.00125] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 02/19/2020] [Indexed: 12/20/2022] Open
Abstract
Lameness in dairy cows is an extremely painful multifactorial condition that affects the welfare of animals and economically impacts the dairy industry worldwide. The aim of this study was to determine the profile of cytokines in the spinal cord dorsal horn of dairy cows with painful chronic inflammatory lameness. Concentrations of 10 cytokines were measured in the spinal cord of seven adult dairy cows with chronic lameness and seven adult dairy cows with no lameness. In all cows lameness was evaluated using a mobility scoring system and registered accordingly. Immediately after euthanasia the spinal cord was removed and 20 cm of lumbar segments (L2–L5) were obtained. After dorsal horn removal and processing, cytokine quantification of tumor necrosis factor-alpha (TNF-α), interleukin-1alpha (IL-1α), interleukin 13 (IL-13), chemokine-10 (CXCL10/IP-10), chemokine-9 (CXCL9/MIG), interferon-alpha (IFN-α), interferon-gamma (IFN-γ), interleukin-21 (IL-21), interleukin-36ra (IL-36ra), and macrophage inflammatory protein-1 beta (MIP-1β) was performed using a multiplex array. Lame cows had higher concentrations of TNF-α, IL-1-α, IL-13, CXCL10, CXCL9, IFN-α, and IFN-γ in their dorsal horn compared to non-lame cows, while IL-21 concentration was decreased. No differences in IL-36ra and MIP-1β concentrations between lame and non-lame cows were observed. Painful chronic inflammation of the hoof in dairy cows leads to a marked increase in cytokine concentration in the dorsal horn of the spinal cord, which could represent a state of neuroinflammation of the Central Nervous System (CNS).
Collapse
Affiliation(s)
- Daniel Herzberg
- Faculty of Veterinary Sciences, Graduate School, Universidad Austral de Chile, Valdivia, Chile
| | - Pablo Strobel
- Faculty of Veterinary Sciences, Animal Science Institute, Universidad Austral de Chile, Valdivia, Chile
| | - Alfredo Ramirez-Reveco
- Faculty of Veterinary Sciences, Animal Science Institute, Universidad Austral de Chile, Valdivia, Chile
| | - Marianne Werner
- Faculty of Veterinary Sciences, Animal Science Institute, Universidad Austral de Chile, Valdivia, Chile
| | - Hedie Bustamante
- Faculty of Veterinary Sciences, Veterinary Clinical Sciences Institute, Universidad Austral de Chile, Valdivia, Chile
| |
Collapse
|
182
|
Feng G, Jiang J, Zhao Y, Wang S, Liu B, Yin K, Niu D, Li X, Chen Y, Duan H, Yang J, He J, Gao Y, Wan Q. A Sub-10 nm Vertical Organic/Inorganic Hybrid Transistor for Pain-Perceptual and Sensitization-Regulated Nociceptor Emulation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1906171. [PMID: 31833134 DOI: 10.1002/adma.201906171] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 11/18/2019] [Indexed: 06/10/2023]
Abstract
Pain-perceptual nociceptors (PPN) are essential sensory neurons that recognize harmful stimuli and can empower the human body to react appropriately and perceive precisely unusual or dangerous conditions in the real world. Furthermore, the sensitization-regulated nociceptors (SRN) can greatly assist pain-sensitive human to reduce pain sensation by normalizing hyperexcitable central neural activity. Therefore, the implementation of PPNs and SRNs in hardware using emerging nanoscale devices can greatly improve the efficiency of bionic medical machines by giving them different sensitivities to external stimuli according to different purposes. However, current most-normal organic/oxide transistors face a great challenge due to channel scaling, especially in the sub-10 nm channel technology. Here, a sub-10 nm indium-tin-oxide transistor with an ultrashort vertical channel as low as ≈3 nm, using sodium alginate bio-polymer electrolyte as gate dielectric, is demonstrated. This device can emulate important characteristics of PPN such as pain threshold, memory of prior injury, and pain sensitization/desensitization. Furthermore, the most intriguing character of SRN can be achieved by tuning the channel thickness. The proposed device can open new avenues for the fascinating applications of next-generation neuromorphic brain-like systems, such as bio-inspired electronic skins and humanoid robots.
Collapse
Affiliation(s)
- Guangdi Feng
- Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Jie Jiang
- Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Yuhang Zhao
- Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Shitan Wang
- Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Biao Liu
- Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Kai Yin
- Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Dongmei Niu
- Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Xiaohui Li
- School of Physics and Information Technology, Shanxi Normal University, Xi'an, 710119, China
| | - Yiqin Chen
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, College of Mechanical and Vehicle Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Huigao Duan
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, College of Mechanical and Vehicle Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Junliang Yang
- Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Jun He
- Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Yongli Gao
- Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, Hunan, 410083, P. R. China
- Department of Physics and Astronomy, University of Rochester, Rochester, NY, 14627, USA
| | - Qing Wan
- School of Electronic Science & Engineering and Collaborative Innovation Centre of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| |
Collapse
|
183
|
Herzberg D, Strobel P, Müller H, Meneses C, Werner M, Bustamante H. Proteomic profiling of proteins in the dorsal horn of the spinal cord in dairy cows with chronic lameness. PLoS One 2020; 15:e0228134. [PMID: 31990932 PMCID: PMC6986711 DOI: 10.1371/journal.pone.0228134] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 01/08/2020] [Indexed: 01/03/2023] Open
Abstract
Chronic lameness affects bovine welfare and has a negative economic impact in dairy industry. Moreover, due to the translational gap between traditional pain models and new drugs development for treating chronic pain states, naturally occurring painful diseases could be a potential translational tool for chronic pain research. We therefore employed liquid chromatography tandem mass spectrometry (LC-MS/MS) to stablish the proteomic profile of the spinal cord samples from lumbar segments (L2-L4) of chronic lame dairy cows. Data were validated and quantified through software tool (Scaffold® v 4.0) using output data from two search engines (SEQUEST® and X-Tandem®). Search Tool for the Retrieval of Interacting Genes/Proteins (STRING) analysis was performed to detect proteins interactions. LC-MS/MS identified a total amount of 177 proteins; of which 129 proteins were able to be quantified. Lame cows showed a strong upregulation of interacting proteins with chaperone and stress functions such as Hsp70 (p < 0.006), Hsc70 (p < 0.0079), Hsp90 (p < 0.015), STIP (p > 0.0018) and Grp78 (p <0.0068), and interacting proteins associated to glycolytic pathway such as; γ-enolase (p < 0.0095), α-enolase (p < 0.013) and hexokinase-1 (p < 0.028). It was not possible to establish a clear network of interaction in several upregulated proteins in lame cows. Non-interacting proteins were mainly associated to redox process and cytoskeletal organization. The most relevant down regulated protein in lame cows was myelin basic protein (MBP) (p < 0.02). Chronic inflammatory lameness in cows is associated to increased expression of stress proteins with chaperone, metabolism, redox and structural functions. A state of endoplasmic reticulum stress and unfolded protein response (UPR) might explain the changes in protein expression in lame cows; however, further studies need to be performed in order to confirm these findings.
Collapse
Affiliation(s)
- Daniel Herzberg
- Veterinary Clinical Sciences Department, Faculty of Veterinary Science, Universidad Austral de Chile, Valdivia, Chile
- * E-mail: (HB); (DH)
| | - Pablo Strobel
- Animal Science Department, Faculty of Veterinary Science, Universidad Austral de Chile, Valdivia, Chile
| | - Heine Müller
- Veterinary Clinical Sciences Department, Faculty of Veterinary Science, Universidad Austral de Chile, Valdivia, Chile
| | - Constanza Meneses
- Comparative Biomedical Science Graduate Program, College of Veterinary Medicine, North Caroline State University, Raleigh, North Carolina, United States of America
| | - Marianne Werner
- Animal Science Department, Faculty of Veterinary Science, Universidad Austral de Chile, Valdivia, Chile
| | - Hedie Bustamante
- Veterinary Clinical Sciences Department, Faculty of Veterinary Science, Universidad Austral de Chile, Valdivia, Chile
- * E-mail: (HB); (DH)
| |
Collapse
|
184
|
Zhou L, Zhang SR, Yang JQ, Mao JY, Ren Y, Shan H, Xu Z, Zhou Y, Han ST. A UV damage-sensing nociceptive device for bionic applications. NANOSCALE 2020; 12:1484-1494. [PMID: 31909402 DOI: 10.1039/c9nr08872e] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Artificial limbs have been widely investigated in the past several decades, and multifuncional bionic limbs have already been constructed. However, due the lack of nociceptive systems, amputees still cannot feel ubiquitous noxious stimuli through bionic limbs. The construction of artificial nociceptors can bring bionic limbs closer to real flesh and bone. In daily life, UV irradiation is an invisible potential noxious stimulus to human skin and eyes. Furthermore, it is well known that the synthetic polymers widely used in bionic limbs can be degraded by UV radiation, accelerating their aging. Based on the above, UV damage-sensing nociceptors could be a feasible strategy to solve these existing problems. Here, azobenzene-functionalized gold nanoparticles (Azo-Au NPs) are embedded in insulating poly(methyl methacrylate) (PMMA) to construct a two-terminal memristor. With UV irradiation as a light damage medium, major nociceptive behaviors such as "threshold", "relaxation" and "sensitization" are successfully emulated, demonstrating its potential application as a nociceptive system.
Collapse
Affiliation(s)
- Li Zhou
- Institute of Microscale Optoelectronics (IMO), Shenzhen University, Shenzhen, 518060, China.
| | | | | | | | | | | | | | | | | |
Collapse
|
185
|
Cohen E, Kumar R, Zinger T, Priel A, Treinin M. GTL-1, a Calcium Activated TRPM Channel, Enhances Nociception. Front Pharmacol 2020; 10:1567. [PMID: 32009965 PMCID: PMC6978279 DOI: 10.3389/fphar.2019.01567] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 12/03/2019] [Indexed: 12/23/2022] Open
Abstract
C. elegans PVD neurons are conserved for morphology, function and molecular determinants with mammalian polymodal nociceptors. Functions of polymodal nociceptors require activities of multiple ion channels and receptors including members of the TRP family. GTL-1, a member of the TRPM subclass of TRP channels, was previously shown to amplify PVD-mediated responses to optogenetic stimuli. Here we characterize effects of GTL-1 on PVD-mediated behavioral responses to noxious stimuli. We show that GTL-1 is required within PVD for the immediate and enduring response to thermal (cold) stimuli. But, find no significant reduction in percent animals responding to single or to repeated noxious mechanical stimuli. Nevertheless, PVD specific knockdown of gtl-1expression reduces the magnitude of responses to noxious mechanical stimuli. To understand GTL-1's mechanism of action we expressed it in HEK293 cells. Our results show GTL-1-dependent currents induced by activation of a Gαq-coupled Designer Receptor Exclusively Activated by Designer Drugs (DREADD). In addition, using excised patches we show that GTL-1 can be activated by internal calcium. Our results are consistent with indirect, calcium dependent, activation of GTL-1 by noxious stimuli. This mechanism explains the GTL-1-dependent amplification of responses to multiple stimuli optogenetic and sensory in PVD.
Collapse
Affiliation(s)
- Emiliano Cohen
- Department of Medical Neurobiology, Hadassah-Medical School, Jerusalem, Israel
| | - Rakesh Kumar
- Faculty of Medicine, School of Pharmacy, The Institute for Drug Research, Hebrew University, Jerusalem, Israel
| | - Tal Zinger
- Department of Medical Neurobiology, Hadassah-Medical School, Jerusalem, Israel
| | - Avi Priel
- Faculty of Medicine, School of Pharmacy, The Institute for Drug Research, Hebrew University, Jerusalem, Israel
| | - Millet Treinin
- Department of Medical Neurobiology, Hadassah-Medical School, Jerusalem, Israel
| |
Collapse
|
186
|
Lai NY, Musser MA, Pinho-Ribeiro FA, Baral P, Jacobson A, Ma P, Potts DE, Chen Z, Paik D, Soualhi S, Yan Y, Misra A, Goldstein K, Lagomarsino VN, Nordstrom A, Sivanathan KN, Wallrapp A, Kuchroo VK, Nowarski R, Starnbach MN, Shi H, Surana NK, An D, Wu C, Huh JR, Rao M, Chiu IM. Gut-Innervating Nociceptor Neurons Regulate Peyer's Patch Microfold Cells and SFB Levels to Mediate Salmonella Host Defense. Cell 2020; 180:33-49.e22. [PMID: 31813624 PMCID: PMC6954329 DOI: 10.1016/j.cell.2019.11.014] [Citation(s) in RCA: 199] [Impact Index Per Article: 49.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Revised: 09/08/2019] [Accepted: 11/12/2019] [Indexed: 12/30/2022]
Abstract
Gut-innervating nociceptor sensory neurons respond to noxious stimuli by initiating protective responses including pain and inflammation; however, their role in enteric infections is unclear. Here, we find that nociceptor neurons critically mediate host defense against the bacterial pathogen Salmonella enterica serovar Typhimurium (STm). Dorsal root ganglia nociceptors protect against STm colonization, invasion, and dissemination from the gut. Nociceptors regulate the density of microfold (M) cells in ileum Peyer's patch (PP) follicle-associated epithelia (FAE) to limit entry points for STm invasion. Downstream of M cells, nociceptors maintain levels of segmentous filamentous bacteria (SFB), a gut microbe residing on ileum villi and PP FAE that mediates resistance to STm infection. TRPV1+ nociceptors directly respond to STm by releasing calcitonin gene-related peptide (CGRP), a neuropeptide that modulates M cells and SFB levels to protect against Salmonella infection. These findings reveal a major role for nociceptor neurons in sensing and defending against enteric pathogens.
Collapse
Affiliation(s)
- Nicole Y Lai
- Department of Immunology, Harvard Medical School, Boston, MA 02115, USA
| | - Melissa A Musser
- Department of Immunology, Harvard Medical School, Boston, MA 02115, USA; Department of Pediatrics, Boston Children's Hospital, Boston, MA 02115, USA
| | | | - Pankaj Baral
- Department of Immunology, Harvard Medical School, Boston, MA 02115, USA
| | - Amanda Jacobson
- Department of Immunology, Harvard Medical School, Boston, MA 02115, USA
| | - Pingchuan Ma
- Department of Immunology, Harvard Medical School, Boston, MA 02115, USA
| | - David E Potts
- Department of Immunology, Harvard Medical School, Boston, MA 02115, USA
| | - Zuojia Chen
- Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women's Hospital, Boston, MA 02115, USA; Experimental Immunology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Donggi Paik
- Department of Immunology, Harvard Medical School, Boston, MA 02115, USA
| | - Salima Soualhi
- Department of Pediatrics, Boston Children's Hospital, Boston, MA 02115, USA
| | - Yiqing Yan
- Department of Immunology, Harvard Medical School, Boston, MA 02115, USA
| | - Aditya Misra
- Department of Immunology, Harvard Medical School, Boston, MA 02115, USA
| | - Kaitlin Goldstein
- Department of Immunology, Harvard Medical School, Boston, MA 02115, USA
| | | | - Anja Nordstrom
- Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Kisha N Sivanathan
- Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Antonia Wallrapp
- Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Vijay K Kuchroo
- Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Roni Nowarski
- Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women's Hospital, Boston, MA 02115, USA
| | | | - Hailian Shi
- Department of Immunology, Harvard Medical School, Boston, MA 02115, USA; Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Neeraj K Surana
- Department of Immunology, Harvard Medical School, Boston, MA 02115, USA; Department of Pediatrics, Duke University, Durham, NC 27710, USA; Department of Molecular Genetics and Microbiology, Duke University, Durham, NC 27710, USA; Department of Immunology, Duke University, Durham, NC 27710, USA
| | - Dingding An
- Department of Pediatrics, Boston Children's Hospital, Boston, MA 02115, USA
| | - Chuan Wu
- Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women's Hospital, Boston, MA 02115, USA; Experimental Immunology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Jun R Huh
- Department of Immunology, Harvard Medical School, Boston, MA 02115, USA
| | - Meenakshi Rao
- Department of Pediatrics, Boston Children's Hospital, Boston, MA 02115, USA
| | - Isaac M Chiu
- Department of Immunology, Harvard Medical School, Boston, MA 02115, USA.
| |
Collapse
|
187
|
Woolf CJ. Capturing Novel Non-opioid Pain Targets. Biol Psychiatry 2020; 87:74-81. [PMID: 31399256 PMCID: PMC6898770 DOI: 10.1016/j.biopsych.2019.06.017] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 06/07/2019] [Accepted: 06/24/2019] [Indexed: 12/29/2022]
Abstract
The relatively high efficacy of opioids, which have associated risks of addiction, tolerance, and dependence, for the management of acute and terminal pain has been a major driver of the opioid crisis, together with the availability, overprescription, and diversion of these drugs. Eliminating opioids without an effective replacement is, however, no solution, as it substitutes one major problem with another. To deal successfully with the opioid crisis, we need to discover novel analgesics whose mechanisms do not involve the mu opioid receptor but that have high analgesic potency and low risk of adverse effects, particularly no abuse liability. The question is how to achieve this. There are several necessary elements; first, we need to understand the nature of pain and the mechanisms responsible for it, and second, we need to adopt novel and unbiased approaches to the identification and validation of pain targets.
Collapse
Affiliation(s)
- Clifford J Woolf
- F.M. Kirby Neurobiology Center, Boston Children's Hospital and Harvard Medical School, Boston, Massachusetts.
| |
Collapse
|
188
|
Saro G, Lia AS, Thapliyal S, Marques F, Busch KE, Glauser DA. Specific Ion Channels Control Sensory Gain, Sensitivity, and Kinetics in a Tonic Thermonociceptor. Cell Rep 2020; 30:397-408.e4. [DOI: 10.1016/j.celrep.2019.12.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 10/17/2019] [Accepted: 12/06/2019] [Indexed: 10/25/2022] Open
|
189
|
Yousuf MS, Maguire AD, Simmen T, Kerr BJ. Endoplasmic reticulum-mitochondria interplay in chronic pain: The calcium connection. Mol Pain 2020; 16:1744806920946889. [PMID: 32787562 PMCID: PMC7427143 DOI: 10.1177/1744806920946889] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 06/26/2020] [Indexed: 12/14/2022] Open
Abstract
Chronic pain is a debilitating condition that affects roughly a third to a half of the world's population. Despite its substantial effect on society, treatment for chronic pain is modest, at best, notwithstanding its side effects. Hence, novel therapeutics are direly needed. Emerging evidence suggests that calcium plays an integral role in mediating neuronal plasticity that underlies sensitization observed in chronic pain states. The endoplasmic reticulum and the mitochondria are the largest calcium repositories in a cell. Here, we review how stressors, like accumulation of misfolded proteins and oxidative stress, influence endoplasmic reticulum and mitochondria function and contribute to chronic pain. We further examine the shuttling of calcium across the mitochondrial-associated membrane as a mechanism of cross-talk between the endoplasmic reticulum and the mitochondria. In addition, we discuss how endoplasmic reticulum stress, mitochondrial impairment, and calcium dyshomeostasis are implicated in various models of neuropathic pain. We propose a novel framework of endoplasmic reticulum-mitochondria signaling in mediating pain hypersensitivity. These observations require further investigation in order to develop novel therapies for chronic pain.
Collapse
Affiliation(s)
- Muhammad Saad Yousuf
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, Canada
| | - Aislinn D Maguire
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, Canada
| | - Thomas Simmen
- Department of Cell Biology, University of Alberta, Edmonton, Canada
| | - Bradley J Kerr
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, Canada
- Department of Pharmacology, University of Alberta, Edmonton, Canada
- Department of Anesthesiology and Pain Medicine, University of Alberta, Edmonton, Canada
| |
Collapse
|
190
|
Haight ES, Forman TE, Cordonnier SA, James ML, Tawfik VL. Microglial Modulation as a Target for Chronic Pain: From the Bench to the Bedside and Back. Anesth Analg 2019; 128:737-746. [PMID: 30883419 DOI: 10.1213/ane.0000000000004033] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
With a widespread opioid epidemic and profound biopsychosocial implications, chronic pain is a multifaceted public health issue requiring urgent attention. The treatment of chronic pain is particularly important to anesthesiologists given our unique role as perioperative physicians and pain medicine specialists. The present review details the recent shift from a neuronal theory of chronic pain to one that includes complex neuron-glia interactions. In particular, we highlight microglia, the myeloid-lineage cells of the central nervous system, as initiators of a postinjury neuroimmune response that contributes to the acute to chronic pain transition. We discuss ever-advancing preclinical studies, wherein significant success has been made through pharmacologic and genetic modulation of microglia, and we emphasize where these approaches have made the transition to the clinical realm. Furthermore, we highlight the most current, novel efforts to visualize glial activation in vivo using positron emission tomography and improve the diagnosis of chronic pain through radiotracer binding of specific targets, like the 18 kDa translocator protein in microglia and myeloid-lineage cells. Our rapidly advancing knowledge about microglia and their involvement in pain suggests that the era of glial-targeted therapeutics is just beginning so long as we refocus our attention on optimizing preclinical studies using a clinically informed approach, before translation.
Collapse
Affiliation(s)
- Elena S Haight
- From the Department of Anesthesiology, Perioperative, and Pain Medicine, Stanford University School of Medicine, Stanford, California
| | - Thomas E Forman
- From the Department of Anesthesiology, Perioperative, and Pain Medicine, Stanford University School of Medicine, Stanford, California.,University of Colorado School of Medicine, Denver, Colorado
| | - Stephanie A Cordonnier
- From the Department of Anesthesiology, Perioperative, and Pain Medicine, Stanford University School of Medicine, Stanford, California.,College of Medicine and Life Sciences, University of Toledo, Toledo, Ohio
| | - Michelle L James
- Departments of Radiology and Neurology, Stanford University School of Medicine, Stanford, California
| | - Vivianne L Tawfik
- From the Department of Anesthesiology, Perioperative, and Pain Medicine, Stanford University School of Medicine, Stanford, California
| |
Collapse
|
191
|
Yang X, Chen Q, Ma M, Xie W, Gong B, Huang Y, Li Y, Liu S, Hu J, Liang S, Chen J, Liu F, Sun T. Expression and Regulation of Brain Natriuretic Peptide and Natriuretic Peptide Receptor A (NPR-A) in L6-S1 Dorsal Root Ganglia in a Rat Model of Chronic Nonbacterial Prostatitis. Med Sci Monit 2019; 25:9042-9047. [PMID: 31777403 PMCID: PMC6900924 DOI: 10.12659/msm.915619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND The study aimed to investigate the expression of brain natriuretic peptide (BNP) and natriuretic peptide receptor A (NPR-A) in L6-S1 dorsal root ganglia (DRG) in a rat model of chronic nonbacterial prostatitis (CNP). MATERIAL AND METHODS One hundred specific pathogen-free (SPF) male Sprague-Dawley rats were randomly divided into a control group (N=50) and a study group (N=50). The control group underwent prostatic injection of 0.1 ml of normal saline on days 3, 7, 10, 14, and 28. The study group, or rat model of CNP, underwent prostatic injection of 0.1 ml of complete Freund's adjuvant on days 3, 7, 10, 14, and 28. At the end of the study, the rats were euthanized, and the prostate tissues and L6-S1 DRG were removed. Histology was performed on the prostate tissue from the rats in the study group and control group. Real-time fluorescence-based quantitative polymerase chain reaction (PCR) and Western blot were used to study the expression of BNP and NPR-A mRNA and protein in the DRG from the rats in the study group and control group. RESULTS In the rat model of CNP, the expression of BNP and NPR-A were significantly increased in L6-S1 DRG compared with the controls. CONCLUSIONS In a rat model of CNP, the increased expression of BNP and NPR-A in L6-S1 DRG may have a role in pain signaling pathways associated with chronic prostatitis.
Collapse
Affiliation(s)
- Xiaorong Yang
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)
| | - Qiang Chen
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)
| | - Ming Ma
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)
| | - Wenjie Xie
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)
| | - Binbin Gong
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)
| | - Yongming Huang
- Department of Urology, The Peoples' Hospital of Ganzhou City, Ganzhou, Jiangxi, China (mainland)
| | - Yu Li
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)
| | - Shuangmei Liu
- Department of Physiology, The Medical College of Nanchang University, Nanchang, Jiangxi, China (mainland)
| | - Jieping Hu
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)
| | - Shangdong Liang
- Department of Physiology, The Medical College of Nanchang University, Nanchang, Jiangxi, China (mainland)
| | - Jie Chen
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)
| | - Fang Liu
- Department of Cadres Healthcare and Geriatrics, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)
| | - Ting Sun
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)
| |
Collapse
|
192
|
Kanashiro A, Hiroki CH, da Fonseca DM, Birbrair A, Ferreira RG, Bassi GS, Fonseca MD, Kusuda R, Cebinelli GCM, da Silva KP, Wanderley CW, Menezes GB, Alves-Fiho JC, Oliveira AG, Cunha TM, Pupo AS, Ulloa L, Cunha FQ. The role of neutrophils in neuro-immune modulation. Pharmacol Res 2019; 151:104580. [PMID: 31786317 DOI: 10.1016/j.phrs.2019.104580] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 11/07/2019] [Accepted: 11/27/2019] [Indexed: 01/10/2023]
Abstract
Neutrophils are peripheral immune cells that represent the first recruited innate immune defense against infections and tissue injury. However, these cells can also induce overzealous responses and cause tissue damage. Although the role of neutrophils activating the immune system is well established, only recently their critical implications in neuro-immune interactions are becoming more relevant. Here, we review several aspects of neutrophils in the bidirectional regulation between the nervous and immune systems. First, the role of neutrophils as a diffuse source of acetylcholine and catecholamines is controversial as well as the effects of these neurotransmitters in neutrophil's functions. Second, neutrophils contribute for the activation and sensitization of sensory neurons, and thereby, in events of nociception and pain. In addition, nociceptor activation promotes an axon reflex triggering a local release of neural mediators and provoking neutrophil activation. Third, the recruitment of neutrophils in inflammatory responses in the nervous system suggests these immune cells as innovative targets in the treatment of central infectious, neurological and neurodegenerative disorders. Multidisciplinary studies involving immunologists and neuroscientists are required to define the role of the neurons-neutrophils communication in the pathophysiology of infectious, inflammatory, and neurological disorders.
Collapse
Affiliation(s)
- Alexandre Kanashiro
- Department of Neurosciences and Behavior, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil.
| | - Carlos Hiroji Hiroki
- Department of Immunology and Biochemistry, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Denise Morais da Fonseca
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Alexander Birbrair
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Raphael Gomes Ferreira
- Araguaína Medical School, Federal University of Tocantins, Avenida Paraguai s/n, 77824-838, Araguaína, TO, Brazil
| | - Gabriel Shimizu Bassi
- Center for Perioperative Organ Protection, Department of Anesthesiology, Duke University, Durham, NC, 27710, USA
| | - Mirian D Fonseca
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Ricardo Kusuda
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
| | | | - Katiussia Pinho da Silva
- Department of Pharmacology, Instituto de Biociências, Universidade Estadual Paulista, Botucatu, SP, Brazil
| | - Carlos Wagner Wanderley
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
| | | | - José Carlos Alves-Fiho
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - André Gustavo Oliveira
- Department of Physiology and Biophysics, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Thiago M Cunha
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - André Sampaio Pupo
- Department of Pharmacology, Instituto de Biociências, Universidade Estadual Paulista, Botucatu, SP, Brazil
| | - Luis Ulloa
- Center for Perioperative Organ Protection, Department of Anesthesiology, Duke University, Durham, NC, 27710, USA.
| | - Fernando Queiroz Cunha
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil.
| |
Collapse
|
193
|
Murthy SE, Loud MC, Daou I, Marshall KL, Schwaller F, Kühnemund J, Francisco AG, Keenan WT, Dubin AE, Lewin GR, Patapoutian A. The mechanosensitive ion channel Piezo2 mediates sensitivity to mechanical pain in mice. Sci Transl Med 2019; 10:10/462/eaat9897. [PMID: 30305457 DOI: 10.1126/scitranslmed.aat9897] [Citation(s) in RCA: 195] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 09/19/2018] [Indexed: 12/19/2022]
Abstract
The brush of a feather and a pinprick are perceived as distinct sensations because they are detected by discrete cutaneous sensory neurons. Inflammation or nerve injury can disrupt this sensory coding and result in maladaptive pain states, including mechanical allodynia, the development of pain in response to innocuous touch. However, the molecular mechanisms underlying the alteration of mechanical sensitization are poorly understood. In mice and humans, loss of mechanically activated PIEZO2 channels results in the inability to sense discriminative touch. However, the role of Piezo2 in acute and sensitized mechanical pain is not well defined. Here, we showed that optogenetic activation of Piezo2-expressing sensory neurons induced nociception in mice. Mice lacking Piezo2 in caudal sensory neurons had impaired nocifensive responses to mechanical stimuli. Consistently, ex vivo recordings in skin-nerve preparations from these mice showed diminished Aδ-nociceptor and C-fiber firing in response to mechanical stimulation. Punctate and dynamic allodynia in response to capsaicin-induced inflammation and spared nerve injury was absent in Piezo2-deficient mice. These results indicate that Piezo2 mediates inflammation- and nerve injury-induced sensitized mechanical pain, and suggest that targeting PIEZO2 might be an effective strategy for treating mechanical allodynia.
Collapse
Affiliation(s)
- Swetha E Murthy
- Howard Hughes Medical Institute, Department of Neuroscience, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Meaghan C Loud
- Howard Hughes Medical Institute, Department of Neuroscience, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Ihab Daou
- Howard Hughes Medical Institute, Department of Neuroscience, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Kara L Marshall
- Howard Hughes Medical Institute, Department of Neuroscience, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Frederick Schwaller
- Department of Neuroscience, Max Delbrück Center for Molecular Medicine, Robert-Rössle Straße 10, Berlin 13125, Germany
| | - Johannes Kühnemund
- Department of Neuroscience, Max Delbrück Center for Molecular Medicine, Robert-Rössle Straße 10, Berlin 13125, Germany
| | - Allain G Francisco
- Howard Hughes Medical Institute, Department of Neuroscience, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - William T Keenan
- Howard Hughes Medical Institute, Department of Neuroscience, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Adrienne E Dubin
- Howard Hughes Medical Institute, Department of Neuroscience, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Gary R Lewin
- Department of Neuroscience, Max Delbrück Center for Molecular Medicine, Robert-Rössle Straße 10, Berlin 13125, Germany.,Excellence Cluster Neurocure, Charité Universitätsmedizin, Berlin 13125, Germany
| | - Ardem Patapoutian
- Howard Hughes Medical Institute, Department of Neuroscience, The Scripps Research Institute, La Jolla, CA 92037, USA.
| |
Collapse
|
194
|
Lesnak J, Sluka KA. Chronic non-inflammatory muscle pain: central and peripheral mediators. CURRENT OPINION IN PHYSIOLOGY 2019; 11:67-74. [PMID: 31998857 PMCID: PMC6988739 DOI: 10.1016/j.cophys.2019.06.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Conditions with chronic widespread non-inflammatory muscle pain, such as fibromyalgia, have complex etiologies with numerous proposed mechanisms for their pathophysiology of underlying chronic pain. Advancements in neuroimaging have allowed for the study of brain function and connectivity in humans with these conditions, while development of animal models have allowed for the study of both peripheral and central factors that lead to chronic pain. This article reviews the current literature surrounding the pathophysiology of chronic widespread non-inflammatory muscle pain focusing on both peripheral and central nervous system, as well as immune system, contributions to the development and maintenance of pain. A better understanding of the mechanisms underlying these conditions can allow for improvements in patient education, treatment and outcomes.
Collapse
Affiliation(s)
- Joseph Lesnak
- Department of Physical Therapy and Rehabilitation Science, Pain Research Program, 1-242 MEB, University of Iowa, Iowa City, IA 52252, USA
| | - Kathleen A. Sluka
- Department of Physical Therapy and Rehabilitation Science, Pain Research Program, 1-242 MEB, University of Iowa, Iowa City, IA 52252, USA
| |
Collapse
|
195
|
Lee JY, Choi HY, Park CS, Jang C, Lee KT, Lee JY, Youn I, Yune TY. Inhibition of COX-2 alleviates lumbar spinal stenosis-induced chronic mechanical allodynia in rats. Int Immunopharmacol 2019; 75:105738. [DOI: 10.1016/j.intimp.2019.105738] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 06/26/2019] [Accepted: 07/02/2019] [Indexed: 01/30/2023]
|
196
|
Mihail SM, Wangzhou A, Kunjilwar KK, Moy JK, Dussor G, Walters ET, Price TJ. MNK-eIF4E signalling is a highly conserved mechanism for sensory neuron axonal plasticity: evidence from Aplysia californica. Philos Trans R Soc Lond B Biol Sci 2019; 374:20190289. [PMID: 31544610 DOI: 10.1098/rstb.2019.0289] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Injury to sensory neurons causes an increase in the excitability of these cells leading to enhanced action potential generation and a lowering of spike threshold. This type of sensory neuron plasticity occurs across vertebrate and invertebrate species and has been linked to the development of both acute and persistent pain. Injury-induced plasticity in sensory neurons relies on localized changes in gene expression that occur at the level of mRNA translation. Many different translation regulation signalling events have been defined and these signalling events are thought to selectively target subsets of mRNAs. Recent evidence from mice suggests that the key signalling event for nociceptor plasticity is mitogen-activated protein kinase-interacting kinase (MNK) -mediated phosphorylation of eukaryotic translation initiation factor (eIF) 4E. To test the degree to which this is conserved in other species, we used a previously described sensory neuron plasticity model in Aplysia californica. We find, using a variety of pharmacological tools, that MNK signalling is crucial for axonal hyperexcitability in sensory neurons from Aplysia. We propose that MNK-eIF4E signalling is a core, evolutionarily conserved, signalling module that controls nociceptor plasticity. This finding has important implications for the therapeutic potential of this target, and it provides interesting clues about the evolutionary origins of mechanisms important for pain-related plasticity. This article is part of the Theo Murphy meeting issue 'Evolution of mechanisms and behaviour important for pain'.
Collapse
Affiliation(s)
- Sandra M Mihail
- Program in Neuroscience and Center for Advanced Pain Studies, University of Texas at Dallas, 800 W Campbell Road, Richardson, TX 75080, USA
| | - Andi Wangzhou
- Program in Neuroscience and Center for Advanced Pain Studies, University of Texas at Dallas, 800 W Campbell Road, Richardson, TX 75080, USA
| | - Kumud K Kunjilwar
- Department of Integrative Biology and Pharmacology, McGovern Medical School at UTHealth, 6431 Fannin Street, Houston, TX 77030, USA
| | - Jamie K Moy
- Program in Neuroscience and Center for Advanced Pain Studies, University of Texas at Dallas, 800 W Campbell Road, Richardson, TX 75080, USA
| | - Gregory Dussor
- Program in Neuroscience and Center for Advanced Pain Studies, University of Texas at Dallas, 800 W Campbell Road, Richardson, TX 75080, USA
| | - Edgar T Walters
- Department of Integrative Biology and Pharmacology, McGovern Medical School at UTHealth, 6431 Fannin Street, Houston, TX 77030, USA
| | - Theodore J Price
- Program in Neuroscience and Center for Advanced Pain Studies, University of Texas at Dallas, 800 W Campbell Road, Richardson, TX 75080, USA
| |
Collapse
|
197
|
Pain regulation by gut microbiota: molecular mechanisms and therapeutic potential. Br J Anaesth 2019; 123:637-654. [PMID: 31551115 DOI: 10.1016/j.bja.2019.07.026] [Citation(s) in RCA: 192] [Impact Index Per Article: 38.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 07/15/2019] [Accepted: 07/16/2019] [Indexed: 12/14/2022] Open
Abstract
The relationship between gut microbiota and neurological diseases, including chronic pain, has received increasing attention. The gut microbiome is a crucial modulator of visceral pain, whereas recent evidence suggests that gut microbiota may also play a critical role in many other types of chronic pain, including inflammatory pain, headache, neuropathic pain, and opioid tolerance. We present a narrative review of the current understanding on the role of gut microbiota in pain regulation and discuss the possibility of targeting gut microbiota for the management of chronic pain. Numerous signalling molecules derived from gut microbiota, such as by-products of microbiota, metabolites, neurotransmitters, and neuromodulators, act on their receptors and remarkably regulate the peripheral and central sensitisation, which in turn mediate the development of chronic pain. Gut microbiota-derived mediators serve as critical modulators for the induction of peripheral sensitisation, directly or indirectly regulating the excitability of primary nociceptive neurones. In the central nervous system, gut microbiota-derived mediators may regulate neuroinflammation, which involves the activation of cells in the blood-brain barrier, microglia, and infiltrating immune cells, to modulate induction and maintenance of central sensitisation. Thus, we propose that gut microbiota regulates pain in the peripheral and central nervous system, and targeting gut microbiota by diet and pharmabiotic intervention may represent a new therapeutic strategy for the management of chronic pain.
Collapse
|
198
|
Sandercock DA, Barnett MW, Coe JE, Downing AC, Nirmal AJ, Di Giminiani P, Edwards SA, Freeman TC. Transcriptomics Analysis of Porcine Caudal Dorsal Root Ganglia in Tail Amputated Pigs Shows Long-Term Effects on Many Pain-Associated Genes. Front Vet Sci 2019; 6:314. [PMID: 31620455 PMCID: PMC6760028 DOI: 10.3389/fvets.2019.00314] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 09/03/2019] [Indexed: 12/24/2022] Open
Abstract
Tail amputation by tail docking or as an extreme consequence of tail biting in commercial pig production potentially has serious implications for animal welfare. Tail amputation causes peripheral nerve injury that might be associated with lasting chronic pain. The aim of this study was to investigate the short- and long-term effects of tail amputation in pigs on caudal DRG gene expression at different stages of development, particularly in relation to genes associated with nociception and pain. Microarrays were used to analyse whole DRG transcriptomes from tail amputated and sham-treated pigs 1, 8, and 16 weeks following tail treatment at either 3 or 63 days of age (8 pigs/treatment/age/time after treatment; n = 96). Tail amputation induced marked changes in gene expression (up and down) compared to sham-treated intact controls for all treatment ages and time points after tail treatment. Sustained changes in gene expression in tail amputated pigs were still evident 4 months after tail injury. Gene correlation network analysis revealed two co-expression clusters associated with amputation: Cluster A (759 down-regulated) and Cluster B (273 up-regulated) genes. Gene ontology (GO) enrichment analysis identified 124 genes in Cluster A and 61 genes in Cluster B associated with both “inflammatory pain” and “neuropathic pain.” In Cluster A, gene family members of ion channels e.g., voltage-gated potassium channels (VGPC) and receptors e.g., GABA receptors, were significantly down-regulated compared to shams, both of which are linked to increased peripheral nerve excitability after axotomy. Up-regulated gene families in Cluster B were linked to transcriptional regulation, inflammation, tissue remodeling, and regulatory neuropeptide activity. These findings, demonstrate that tail amputation causes sustained transcriptomic expression changes in caudal DRG cells involved in inflammatory and neuropathic pain pathways.
Collapse
Affiliation(s)
- Dale A Sandercock
- Animal and Veterinary Science Research Group, Scotland's Rural College, Roslin Institute Building, Edinburgh, United Kingdom
| | - Mark W Barnett
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, United Kingdom
| | - Jennifer E Coe
- Animal and Veterinary Science Research Group, Scotland's Rural College, Roslin Institute Building, Edinburgh, United Kingdom
| | - Alison C Downing
- Edinburgh Genomics, The University of Edinburgh, Edinburgh, United Kingdom
| | - Ajit J Nirmal
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, United Kingdom
| | - Pierpaolo Di Giminiani
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Sandra A Edwards
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Tom C Freeman
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, United Kingdom
| |
Collapse
|
199
|
de Sousa Valente J. The Pharmacology of Pain Associated With the Monoiodoacetate Model of Osteoarthritis. Front Pharmacol 2019; 10:974. [PMID: 31619987 PMCID: PMC6759799 DOI: 10.3389/fphar.2019.00974] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 07/31/2019] [Indexed: 12/31/2022] Open
Abstract
The high incidence of osteoarthritis (OA) in an increasingly elderly population anticipates a dramatic rise in the number of people suffering from this disease in the near future. Because pain is the main reason patients seek medical help, effective pain management-which is currently lacking-is paramount to improve the quality of life that OA sufferers desperately seek. Good animal models are, in this day and age, fundamental tools for basic research of new therapeutic pathways. Several animal models of OA have been characterized, but none of them reproduces entirely all symptoms of the disease. Choosing between different animal models depends largely on which aspect of OA one aims to study. Here, we review the current understanding of the monoiodoacetate (MIA) model of OA. MIA injection in the knee joint leads to the progressive disruption of cartilage, which, in turn, is associated with the development of pain-like behavior. There are several reasons why the MIA model of OA seems to be the most adequate to study the pharmacological effect of new drugs in pain associated with OA. First, the pathological changes induced by MIA share many common traits with those observed in human OA (Van Der Kraan et al., 1989; Guingamp et al., 1997; Guzman et al., 2003), including loss of cartilage and alterations in the subchondral bone. The model has been extensively utilized in basic research, which means that the time course of pain-related behaviors and histopathological changes, as well as pharmacological profile, namely of commonly used pain-reducing drugs, is now moderately understood. Also, the severity of the progression of pathological changes can be controlled by grading the concentration of MIA administered. Further, in contrast with other OA models, MIA offers a rapid induction of pain-related phenotypes, with the cost-saving consequence in new drug screening. This model, therefore, may be more predictive of clinical efficacy of novel pharmacological tools than other chronic or acute OA models.
Collapse
Affiliation(s)
- João de Sousa Valente
- Vascular Biology and Inflammation Section, Cardiovascular School of Medicine and Sciences, British Heart Foundation Centre of Excellence, King's College London, London, United Kingdom
| |
Collapse
|
200
|
Rahimi-Balaei M, Buchok M, Vihko P, Parkinson FE, Marzban H. Loss of prostatic acid phosphatase and α-synuclein cause motor circuit degeneration without altering cerebellar patterning. PLoS One 2019; 14:e0222234. [PMID: 31509576 PMCID: PMC6738605 DOI: 10.1371/journal.pone.0222234] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 08/23/2019] [Indexed: 01/08/2023] Open
Abstract
Prostatic acid phosphatase (PAP), which is secreted by prostate, increases in some diseases such as prostate cancer. PAP is also present in the central nervous system. In this study we reveal that α-synuclein (Snca) gene is co-deleted/mutated in PAP null mouse. It is indicated that mice deficient in transmembrane PAP display neurological alterations. By using immunohistochemistry, cerebellar cortical neurons and zone and stripes pattern were studied in Pap-/- ;Snca-/- mouse cerebellum. We show that the Pap-/- ;Snca-/- cerebellar cortex development appears to be normal. Compartmentation genes expression such as zebrin II, HSP25, and P75NTR show the zone and stripe phenotype characteristic of the normal cerebellum. These data indicate that although aggregation of PAP and SNCA causes severe neurodegenerative diseases, PAP-/- with absence of the Snca does not appear to interrupt the cerebellar architecture development and zone and stripe pattern formation. These findings question the physiological and pathological role of SNCA and PAP during cerebellar development or suggest existence of the possible compensatory mechanisms in the absence of these genes.
Collapse
Affiliation(s)
- Maryam Rahimi-Balaei
- Department of Human Anatomy and Cell Science, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
- The Children's Hospital Research Institute of Manitoba (CHRIM), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Matthew Buchok
- Department of Human Anatomy and Cell Science, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Pirkko Vihko
- Department of Clinical Chemistry and Hematology, University of Helsinki, Helsinki, Finland
| | - Fiona E. Parkinson
- Department of Pharmacology and Therapeutics, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Hassan Marzban
- Department of Human Anatomy and Cell Science, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
- The Children's Hospital Research Institute of Manitoba (CHRIM), Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
- * E-mail:
| |
Collapse
|