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Pawlik K, Mika J. Targeting Members of the Chemokine Family as a Novel Approach to Treating Neuropathic Pain. Molecules 2023; 28:5766. [PMID: 37570736 PMCID: PMC10421203 DOI: 10.3390/molecules28155766] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 07/19/2023] [Accepted: 07/27/2023] [Indexed: 08/13/2023] Open
Abstract
Neuropathic pain is a debilitating condition that affects millions of people worldwide. Numerous studies indicate that this type of pain is a chronic condition with a complex mechanism that tends to worsen over time, leading to a significant deterioration in patients' quality of life and issues like depression, disability, and disturbed sleep. Presently used analgesics are not effective enough in neuropathy treatment and may cause many side effects due to the high doses needed. In recent years, many researchers have pointed to the important role of chemokines not only in the development and maintenance of neuropathy but also in the effectiveness of analgesic drugs. Currently, approximately 50 chemokines are known to act through 20 different seven-transmembrane G-protein-coupled receptors located on the surface of neuronal, glial, and immune cells. Data from recent years clearly indicate that more chemokines than initially thought (CCL1/2/3/5/7/8/9/11, CXCL3/9/10/12/13/14/17; XCL1, CX3CL1) have pronociceptive properties; therefore, blocking their action by using neutralizing antibodies, inhibiting their synthesis, or blocking their receptors brings neuropathic pain relief. Several of them (CCL1/2/3/7/9/XCL1) have been shown to be able to reduce opioid drug effectiveness in neuropathy, and neutralizing antibodies against them can restore morphine and/or buprenorphine analgesia. The latest research provides irrefutable evidence that chemokine receptors are promising targets for pharmacotherapy; chemokine receptor antagonists can relieve pain of different etiologies, and most of them are able to enhance opioid analgesia, for example, the blockade of CCR1 (J113863), CCR2 (RS504393), CCR3 (SB328437), CCR4 (C021), CCR5 (maraviroc/AZD5672/TAK-220), CXCR2 (NVPCXCR220/SB225002), CXCR3 (NBI-74330/AMG487), CXCR4 (AMD3100/AMD3465), and XCR1 (vMIP-II). Recent research has shown that multitarget antagonists of chemokine receptors, such as CCR2/5 (cenicriviroc), CXCR1/2 (reparixin), and CCR2/CCR5/CCR8 (RAP-103), are also very effective painkillers. A multidirectional strategy based on the modulation of neuronal-glial-immune interactions by changing the activity of the chemokine family can significantly improve the quality of life of patients suffering from neuropathic pain. However, members of the chemokine family are still underestimated pharmacological targets for pain treatment. In this article, we review the literature and provide new insights into the role of chemokines and their receptors in neuropathic pain.
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Affiliation(s)
| | - Joanna Mika
- Department of Pain Pharmacology, Maj Institute of Pharmacology Polish Academy of Sciences, 12 Smetna Str., 31-343 Cracow, Poland;
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Liu S, Lan XB, Tian MM, Zhu CH, Ma L, Yang JM, Du J, Zheng P, Yu JQ, Liu N. Targeting the chemokine ligand 2-chemokine receptor 2 axis provides the possibility of immunotherapy in chronic pain. Eur J Pharmacol 2023; 947:175646. [PMID: 36907261 DOI: 10.1016/j.ejphar.2023.175646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 02/26/2023] [Accepted: 03/06/2023] [Indexed: 03/13/2023]
Abstract
Chronic pain affects patients' physical and psychological health and quality of life, entailing a tremendous public health challenge. Currently, drugs for chronic pain are usually associated with a large number of side effects and poor efficacy. Chemokines in the neuroimmune interface combine with their receptors to regulate inflammation or mediate neuroinflammation in the peripheral and central nervous system. Targeting chemokines and their receptor-mediated neuroinflammation is an effective means to treat chronic pain. In recent years, growing evidence has shown that the expression of chemokine ligand 2 (CCL2) and its main chemokine receptor 2 (CCR2) is involved in its occurrence, development and maintenance of chronic pain. This paper summarises the relationship between the chemokine system, CCL2/CCR2 axis, and chronic pain, and the CCL2/CCR2 axis changes under different chronic pain conditions. Targeting chemokine CCL2 and its chemokine receptor CCR2 through siRNA, blocking antibodies, or small molecule antagonists may provide new therapeutic possibilities for managing chronic pain.
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Affiliation(s)
- Shan Liu
- Department of Pharmacology, School of Pharmacy, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750004, China.
| | - Xiao-Bing Lan
- Department of Pharmacology, School of Pharmacy, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750004, China.
| | - Miao-Miao Tian
- Department of Pharmacology, School of Pharmacy, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750004, China.
| | - Chun-Hao Zhu
- Department of Pharmacology, School of Pharmacy, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750004, China.
| | - Lin Ma
- Department of Pharmacology, School of Pharmacy, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750004, China.
| | - Jia-Mei Yang
- Department of Pharmacology, School of Pharmacy, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750004, China.
| | - Juan Du
- Department of Pharmacology, School of Pharmacy, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750004, China.
| | - Ping Zheng
- Department of Pharmacology, School of Pharmacy, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750004, China.
| | - Jian-Qiang Yu
- Department of Pharmacology, School of Pharmacy, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750004, China; Ningxia Special Traditional Medicine Modern Engineering Research Center and Collaborative Innovation Center, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750004, China.
| | - Ning Liu
- Department of Pharmacology, School of Pharmacy, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750004, China; Ningxia Special Traditional Medicine Modern Engineering Research Center and Collaborative Innovation Center, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750004, China.
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Pharmacological Evidence of the Important Roles of CCR1 and CCR3 and Their Endogenous Ligands CCL2/7/8 in Hypersensitivity Based on a Murine Model of Neuropathic Pain. Cells 2022; 12:cells12010098. [PMID: 36611891 PMCID: PMC9818689 DOI: 10.3390/cells12010098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/21/2022] [Accepted: 12/23/2022] [Indexed: 12/28/2022] Open
Abstract
Neuropathic pain treatment remains a challenging issue because the therapies currently used in the clinic are not sufficiently effective. Moreover, the mechanism of neuropathy is still not entirely understood; however, much evidence indicates that chemokines are important factors in the initial and late phases of neuropathic pain. To date, the roles of CCR1, CCR3 and their endogenous ligands have not been extensively studied; therefore, they have become the subject of our research. In the present comprehensive behavioral and biochemical study, we detected significant time-dependent and long-lasting increases in the mRNA levels of CCR1 and/or CCR3 ligands, such as CCL2/3/4/5/6/7/8/9, in the murine spinal cord after chronic constriction injury of the sciatic nerve, and these increases were accompanied by changes in the levels of microglial/macrophage, astrocyte and neutrophil cell markers. ELISA results suggested that endogenous ligands of CCR1 and CCR3 are involved in the development (CCL2/3/5/7/8/9) and persistence (CCL2/7/8) of neuropathic pain. Moreover, intrathecal injection of CCL2/3/5/7/8/9 confirmed their possible strong influence on mechanical and thermal hypersensitivity development. Importantly, inhibition of CCL2/7/8 production and CCR1 and CCR3 blockade by selective/dual antagonists effectively reduced neuropathic pain-like behavior. The obtained data suggest that CCL2/7/8/CCR1 and CCL7/8/CCR3 signaling are important in the modulation of neuropathic pain in mice and that these chemokines and their receptors may be interesting targets for future investigations.
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Wilkerson JL, Alberti LB, Thakur GA, Makriyannis A, Milligan ED. Peripherally administered cannabinoid receptor 2 (CB 2R) agonists lose anti-allodynic effects in TRPV1 knockout mice, while intrathecal administration leads to anti-allodynia and reduced GFAP, CCL2 and TRPV1 expression in the dorsal spinal cord and DRG. Brain Res 2022; 1774:147721. [PMID: 34774500 PMCID: PMC10763621 DOI: 10.1016/j.brainres.2021.147721] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 11/02/2021] [Accepted: 11/05/2021] [Indexed: 12/18/2022]
Abstract
The transient receptor potential (TRP) superfamily of cation channels, of which the TRP vanilloid type 1 (TRPV1) receptor plays a critical role in inflammatory and neuropathic pain, is expressed on nociceptors and spinal cord dorsal horn neurons. TRPV1 is also expressed on spinal astrocytes and dorsal root ganglia (DRG) satellite cells. Agonists of the cannabinoid type 2 receptor (CB2R) suppress allodynia, with some that can bind TRPV1. The neuroimmune C-C class chemokine-2 (CCL2) expressed on injured DRG nociceptor cell bodies, Schwann cells and spinal astrocytes, stimulates immune cell accumulation in DRG and spinal cord, a known critical element in chronic allodynia. The current report examined whether two CB2R agonists, AM1710 and AM1241, previously shown to reverse light touch mechanical allodynia in rodent models of sciatic neuropathy, require TRPV1 activation that leads to receptor insensitivity resulting in reversal of allodynia. Global TRPV1 knockout (KO) mice with sciatic neuropathy given intrathecal or intraperitoneal AM1710 were examined for anti-allodynia followed by immunofluorescent microscopy analysis of lumbar spinal cord and DRG of astrocyte and CCL2 markers. Additionally, immunofluorescent analysis following intrathecal AM1710 and AM1241 in rat was performed. Data reveal that intrathecal AM1710 resulted in mouse anti-allodynia, reduced spinal astrocyte activation and CCL2 expression independent of TRPV1 gene deletion. Conversely, peripheral AM1710 in TRPV1-KO mice failed to reverse allodynia. In rat, intrathecal AM1710 and AM1241 reduced spinal and DRG TRPV1 expression, with CCL2-astrocyte and -microglial co-expression. These data support that CB2R agonists can impact spinal and DRG TRPV1 expression critical for anti-allodynia.
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Affiliation(s)
- Jenny L Wilkerson
- Department of Neurosciences, Health Sciences Center, School of Medicine, University of New Mexico, Albuquerque, NM 87131, USA; Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - Lauren B Alberti
- Department of Neurosciences, Health Sciences Center, School of Medicine, University of New Mexico, Albuquerque, NM 87131, USA
| | - Ganesh A Thakur
- Center for Drug Discovery, Northeastern University, Boston, MA 02115, USA
| | | | - Erin D Milligan
- Department of Neurosciences, Health Sciences Center, School of Medicine, University of New Mexico, Albuquerque, NM 87131, USA.
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Pawlik K, Ciechanowska A, Ciapała K, Rojewska E, Makuch W, Mika J. Blockade of CC Chemokine Receptor Type 3 Diminishes Pain and Enhances Opioid Analgesic Potency in a Model of Neuropathic Pain. Front Immunol 2021; 12:781310. [PMID: 34795678 PMCID: PMC8593225 DOI: 10.3389/fimmu.2021.781310] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 10/18/2021] [Indexed: 11/26/2022] Open
Abstract
Neuropathic pain is a serious clinical issue, and its treatment remains a challenge in contemporary medicine. Thus, dynamic development in the area of animal and clinical studies has been observed. The mechanisms of neuropathic pain are still not fully understood; therefore, studies investigating these mechanisms are extremely important. However, much evidence indicates that changes in the activation and infiltration of immune cells cause the release of pronociceptive cytokines and contribute to neuropathic pain development and maintenance. Moreover, these changes are associated with low efficacy of opioids used to treat neuropathy. To date, the role of CC chemokine receptor type 3 (CCR3) in nociception has not been studied. Similarly, little is known about its endogenous ligands (C-C motif ligand; CCL), namely, CCL5, CCL7, CCL11, CCL24, CCL26, and CCL28. Our research showed that the development of hypersensitivity in rats following chronic constriction injury (CCI) of the sciatic nerve is associated with upregulation of CCL7 and CCL11 in the spinal cord and dorsal root ganglia (DRG). Moreover, our results provide the first evidence that single and repeated intrathecal administration of the CCR3 antagonist SB328437 diminishes mechanical and thermal hypersensitivity. Additionally, repeated administration enhances the analgesic properties of morphine and buprenorphine following nerve injury. Simultaneously, the injection of SB328437 reduces the protein levels of some pronociceptive cytokines, such as IL-6, CCL7, and CCL11, in parallel with a reduction in the activation and influx of GFAP-, CD4- and MPO-positive cells in the spinal cord and/or DRG. Moreover, we have shown for the first time that an inhibitor of myeloperoxidase-4-aminobenzoic hydrazide may relieve pain and simultaneously enhance morphine and buprenorphine efficacy. The obtained results indicate the important role of CCR3 and its modulation in neuropathic pain treatment and suggest that it represents an interesting target for future investigations.
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Affiliation(s)
- Katarzyna Pawlik
- Department of Pain Pharmacology, Maj Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
| | - Agata Ciechanowska
- Department of Pain Pharmacology, Maj Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
| | - Katarzyna Ciapała
- Department of Pain Pharmacology, Maj Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
| | - Ewelina Rojewska
- Department of Pain Pharmacology, Maj Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
| | - Wioletta Makuch
- Department of Pain Pharmacology, Maj Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
| | - Joanna Mika
- Department of Pain Pharmacology, Maj Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
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Piotrowska A, Ciapała K, Pawlik K, Kwiatkowski K, Rojewska E, Mika J. Comparison of the Effects of Chemokine Receptors CXCR2 and CXCR3 Pharmacological Modulation in Neuropathic Pain Model- In Vivo and In Vitro Study. Int J Mol Sci 2021; 22:ijms222011074. [PMID: 34681732 PMCID: PMC8538855 DOI: 10.3390/ijms222011074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/02/2021] [Accepted: 10/09/2021] [Indexed: 12/12/2022] Open
Abstract
Recent findings have highlighted the roles of CXC chemokine family in the mechanisms of neuropathic pain. Our studies provide evidence that single/repeated intrathecal administration of CXCR2 (NVP-CXCR2-20) and CXCR3 ((±)-NBI-74330) antagonists explicitly attenuated mechanical/thermal hypersensitivity in rats after chronic constriction injury of the sciatic nerve. After repeated administration, both antagonists showed strong analgesic activity toward thermal hypersensitivity; however, (±)-NBI-74330 was more effective at reducing mechanical hypersensitivity. Interestingly, repeated intrathecal administration of both antagonists decreased the mRNA and/or protein levels of pronociceptive interleukins (i.e., IL-1beta, IL-6, IL-18) in the spinal cord, but only (±)-NBI-74330 decreased their levels in the dorsal root ganglia after nerve injury. Furthermore, only the CXCR3 antagonist influenced the spinal mRNA levels of antinociceptive factors (i.e., IL-1RA, IL-10). Additionally, antagonists effectively reduced the mRNA levels of pronociceptive chemokines; NVP-CXCR2-20 decreased the levels of CCL2, CCL6, CCL7, and CXCL4, while (±)-NBI-74330 reduced the levels of CCL3, CCL6, CXCL4, and CXCL9. Importantly, the results obtained from the primary microglial and astroglial cell cultures clearly suggest that both antagonists can directly affect the release of these ligands, mainly in microglia. Interestingly, NVP-CXCR2-20 induced analgesic effects after intraperitoneal administration. Our research revealed important roles for CXCR2 and CXCR3 in nociceptive transmission, especially in neuropathic pain.
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MESH Headings
- Acetamides/pharmacology
- Acetamides/therapeutic use
- Analgesics/pharmacology
- Analgesics/therapeutic use
- Animals
- Astrocytes/cytology
- Astrocytes/drug effects
- Astrocytes/metabolism
- Behavior, Animal/drug effects
- Cells, Cultured
- Chemokine CCL3/genetics
- Chemokine CCL3/metabolism
- Down-Regulation/drug effects
- Ganglia, Spinal/metabolism
- Ganglia, Spinal/pathology
- Interleukin-1beta/genetics
- Interleukin-1beta/metabolism
- Interleukin-6/genetics
- Interleukin-6/metabolism
- Male
- Microglia/cytology
- Microglia/drug effects
- Microglia/metabolism
- Neuralgia/chemically induced
- Neuralgia/drug therapy
- Neuralgia/pathology
- Pyrimidines/pharmacology
- Pyrimidines/therapeutic use
- Rats
- Rats, Wistar
- Receptors, CXCR3/antagonists & inhibitors
- Receptors, CXCR3/metabolism
- Receptors, Interleukin-8B/antagonists & inhibitors
- Receptors, Interleukin-8B/metabolism
- Spinal Cord/metabolism
- Spinal Cord/pathology
- Stress, Mechanical
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Calapai F, Mondello E, Mannucci C, Sorbara EE, Gangemi S, Quattrone D, Calapai G, Cardia L. Pain Biomarkers in Cancer: An Overview. Curr Pharm Des 2021; 27:293-304. [PMID: 33138755 DOI: 10.2174/1381612826666201102103520] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 08/09/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Pain is a common symptom in oncologic patients and its management is generally guided with reference to pain individually perceived by patients and expressed through self-reported scales. However, the utility of these tools is limited as it strongly depends on patients' opinions. For this reason, more objective instruments are desirable. OBJECTIVE In this overview, scientific articles indicating potential markers to be used for pain management in cancer were collected and discussed. METHODS Research was performed on principal electronic scientific databases by using the words "pain", "cancer", "markers" and "biomarkers" as the main keywords, and findings describing potential biomarkers for the management of cancer pain were reported. RESULTS Studies on pain markers not specific for cancer typology (inflammatory, genetic markers predicting response to analgesic drugs, neuroimaging markers) and pain markers for specific types of cancer (bone cancer, breast cancer, lung cancer, head and neck cancer, prostate cancer, cancer in pediatrics) have been presented and commented on. CONCLUSION This overview supports the view of the involvement of inflammatory mediators in the mechanisms underlying cancer pain. Only a small amount of data from research up till today is available on markers that can help in the management of pain, except for pro-inflammatory cytokines and other inflammatory indexes such as C-reactive protein (CRP). However, biomarkers are a promising strategy useful to predict pain intensity and to objectively quantify analgesic response in guiding decisions regarding individual-tailored treatments for cancer patients.
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Affiliation(s)
- Fabrizio Calapai
- Department of Biomedical and Dental Sciences and Morphological and Functional Imaging - University of Messina, Messina, Italy
| | - Epifanio Mondello
- Anesthesia, Intensive Care and Pain Therapy, Policlinico "G. Martino" - University of Messina, Messina, Italy
| | - Carmen Mannucci
- Department of Biomedical and Dental Sciences and Morphological and Functional Imaging - University of Messina, Messina, Italy
| | - Emanuela E Sorbara
- Department of Biomedical and Dental Sciences and Morphological and Functional Imaging - University of Messina, Messina, Italy
| | - Sebastiano Gangemi
- School and Division of Allergy and Clinical Immunology, Department of Experimental Medicine, University of Messina, Messina, Italy
| | - Domenico Quattrone
- Pain Therapy Unit, Grande Ospedale Metropolitano "Bianchi-Melacrino-Morelli" - Reggio Calabria, Italy
| | - Gioacchino Calapai
- Department of Biomedical and Dental Sciences and Morphological and Functional Imaging - University of Messina, Messina, Italy
| | - Luigi Cardia
- IRCCS Centro Neurolesi Bonino- Pulejo, Messina, Italy
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Dansereau MA, Midavaine É, Bégin-Lavallée V, Belkouch M, Beaudet N, Longpré JM, Mélik-Parsadaniantz S, Sarret P. Mechanistic insights into the role of the chemokine CCL2/CCR2 axis in dorsal root ganglia to peripheral inflammation and pain hypersensitivity. J Neuroinflammation 2021; 18:79. [PMID: 33757529 PMCID: PMC7986025 DOI: 10.1186/s12974-021-02125-y] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 03/05/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Pain is reported as the leading cause of disability in the common forms of inflammatory arthritis conditions. Acting as a key player in nociceptive processing, neuroinflammation, and neuron-glia communication, the chemokine CCL2/CCR2 axis holds great promise for controlling chronic painful arthritis. Here, we investigated how the CCL2/CCR2 system in the dorsal root ganglion (DRG) contributes to the peripheral inflammatory pain sensitization. METHODS Repeated intrathecal (i.t.) administration of the CCR2 antagonist, INCB3344 was tested for its ability to reverse the nociceptive-related behaviors in the tonic formalin and complete Freund's adjuvant (CFA) inflammatory models. We further determined by qPCR the expression of CCL2/CCR2, SP and CGRP in DRG neurons from CFA-treated rats. Using DRG explants, acutely dissociated primary sensory neurons and calcium mobilization assay, we also assessed the release of CCL2 and sensitization of nociceptors. Finally, we examined by immunohistochemistry following nerve ligation the axonal transport of CCL2, SP, and CGRP from the sciatic nerve of CFA-treated rats. RESULTS We first found that CFA-induced paw edema provoked an increase in CCL2/CCR2 and SP expression in ipsilateral DRGs, which was decreased after INCB3344 treatment. This upregulation in pronociceptive neuromodulators was accompanied by an enhanced nociceptive neuron excitability on days 3 and 10 post-CFA, as revealed by the CCR2-dependent increase in intracellular calcium mobilization following CCL2 stimulation. In DRG explants, we further demonstrated that the release of CCL2 was increased following peripheral inflammation. Finally, the excitation of nociceptors following peripheral inflammation stimulated the anterograde transport of SP at their peripheral nerve terminals. Importantly, blockade of CCR2 reduced sensory neuron excitability by limiting the calcium mobilization and subsequently decreased peripheral transport of SP towards the periphery. Finally, pharmacological inhibition of CCR2 reversed the pronociceptive action of CCL2 in rats receiving formalin injection and significantly reduced the neurogenic inflammation as well as the stimuli-evoked and movement-evoked nociceptive behaviors in CFA-treated rats. CONCLUSIONS Our results provide significant mechanistic insights into the role of CCL2/CCR2 within the DRG in the development of peripheral inflammation, nociceptor sensitization, and pain hypersensitivity. We further unveil the therapeutic potential of targeting CCR2 for the treatment of painful inflammatory disorders.
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Affiliation(s)
- Marc-André Dansereau
- Département de Pharmacologie & Physiologie, Institut de Pharmacologie de Sherbrooke, Faculté de médecine et des sciences de la santé, Université de Sherbrooke, 3001, 12e Avenue Nord, Sherbrooke, Quebec, J1H 5N4, Canada
| | - Élora Midavaine
- Département de Pharmacologie & Physiologie, Institut de Pharmacologie de Sherbrooke, Faculté de médecine et des sciences de la santé, Université de Sherbrooke, 3001, 12e Avenue Nord, Sherbrooke, Quebec, J1H 5N4, Canada
| | - Valérie Bégin-Lavallée
- Département de Pharmacologie & Physiologie, Institut de Pharmacologie de Sherbrooke, Faculté de médecine et des sciences de la santé, Université de Sherbrooke, 3001, 12e Avenue Nord, Sherbrooke, Quebec, J1H 5N4, Canada
| | - Mounir Belkouch
- Département de Pharmacologie & Physiologie, Institut de Pharmacologie de Sherbrooke, Faculté de médecine et des sciences de la santé, Université de Sherbrooke, 3001, 12e Avenue Nord, Sherbrooke, Quebec, J1H 5N4, Canada
| | - Nicolas Beaudet
- Département de Pharmacologie & Physiologie, Institut de Pharmacologie de Sherbrooke, Faculté de médecine et des sciences de la santé, Université de Sherbrooke, 3001, 12e Avenue Nord, Sherbrooke, Quebec, J1H 5N4, Canada
| | - Jean-Michel Longpré
- Département de Pharmacologie & Physiologie, Institut de Pharmacologie de Sherbrooke, Faculté de médecine et des sciences de la santé, Université de Sherbrooke, 3001, 12e Avenue Nord, Sherbrooke, Quebec, J1H 5N4, Canada
| | - Stéphane Mélik-Parsadaniantz
- Centre de Recherche Institut de la Vision, Université Pierre et Marie Curie, INSERM, UMR_S968, CNRS, UMR_7210, Paris, France
| | - Philippe Sarret
- Département de Pharmacologie & Physiologie, Institut de Pharmacologie de Sherbrooke, Faculté de médecine et des sciences de la santé, Université de Sherbrooke, 3001, 12e Avenue Nord, Sherbrooke, Quebec, J1H 5N4, Canada.
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Kwiatkowski K, Pawlik K, Ciapała K, Piotrowska A, Makuch W, Mika J. Bidirectional Action of Cenicriviroc, a CCR2/CCR5 Antagonist, Results in Alleviation of Pain-Related Behaviors and Potentiation of Opioid Analgesia in Rats With Peripheral Neuropathy. Front Immunol 2021; 11:615327. [PMID: 33408720 PMCID: PMC7779470 DOI: 10.3389/fimmu.2020.615327] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 11/19/2020] [Indexed: 12/25/2022] Open
Abstract
Clinical management of neuropathic pain is unsatisfactory, mainly due to its resistance to the effects of available analgesics, including opioids. Converging evidence indicates the functional interactions between chemokine and opioid receptors and their influence on nociceptive processes. Recent studies highlight that the CC chemokine receptors type 2 (CCR2) and 5 (CCR5) seem to be of particular interest. Therefore, in this study, we investigated the effects of the dual CCR2/CCR5 antagonist, cenicriviroc, on pain-related behaviors, neuroimmune processes, and the efficacy of opioids in rats after chronic constriction injury (CCI) of the sciatic nerve. To define the mechanisms of action of cenicriviroc, we studied changes in the activation/influx of glial and immune cells and, simultaneously, the expression level of CCR2, CCR5, and important pronociceptive cytokines in the spinal cord and dorsal root ganglia (DRG). We demonstrated that repeated intrathecal injections of cenicriviroc, in a dose-dependent manner, alleviated hypersensitivity to mechanical and thermal stimuli in rats after sciatic nerve injury, as measured by von Frey and cold plate tests. Behavioral effects were associated with the beneficial impact of cenicriviroc on the activation/influx level of C1q/IBA-1-positive cells in the spinal cord and/or DRG and GFAP-positive cells in DRG. In parallel, administration of cenicriviroc decreased the expression of CCR2 in the spinal cord and CCR5 in DRG. Concomitantly, we observed that the level of important pronociceptive factors (e.g., IL-1beta, IL-6, IL-18, and CCL3) were increased in the lumbar spinal cord and/or DRG 7 days following injury, and cenicriviroc was able to prevent these changes. Additionally, repeated administration of this dual CCR2/CCR5 antagonist enhanced the analgesic effects of morphine and buprenorphine in neuropathic rats, which can be associated with the ability of cenicriviroc to prevent nerve injury-induced downregulation of all opioid receptors at the DRG level. Overall, our results suggest that pharmacological modulation based on the simultaneous blockade of CCR2 and CCR5 may serve as an innovative strategy for the treatment of neuropathic pain, as well as in combination with opioids.
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Affiliation(s)
- Klaudia Kwiatkowski
- Department of Pain Pharmacology, Maj Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
| | - Katarzyna Pawlik
- Department of Pain Pharmacology, Maj Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
| | - Katarzyna Ciapała
- Department of Pain Pharmacology, Maj Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
| | - Anna Piotrowska
- Department of Pain Pharmacology, Maj Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
| | - Wioletta Makuch
- Department of Pain Pharmacology, Maj Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
| | - Joanna Mika
- Department of Pain Pharmacology, Maj Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
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Wilkerson JL, Alberti LB, Kerwin AA, Ledent CA, Thakur GA, Makriyannis A, Milligan ED. Peripheral versus central mechanisms of the cannabinoid type 2 receptor agonist AM1710 in a mouse model of neuropathic pain. Brain Behav 2020; 10:e01850. [PMID: 32977358 PMCID: PMC7749576 DOI: 10.1002/brb3.1850] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 08/16/2020] [Accepted: 08/26/2020] [Indexed: 01/21/2023] Open
Abstract
The CB2 R agonist AM1710, examined in animal models of peripheral neuropathy, is effective in controlling aberrant light touch sensitivity, referred to as mechanical allodynia. However, nonspecific binding of AM1710 to CB1 R, either peripherally or centrally, could be partially responsible for the analgesic effects of AM1710. Thus, we sought to determine in mice whether spinal (intrathecal; i.t.) or peripheral AM1710 administration could lead to anti-allodynia by reducing the protein expression of spinal and dorsal root ganglia (DRG) proinflammatory cytokines and elevating the anti-inflammatory cytokine interleukin-10 (IL-10) in the absence of CB1 R. Macrophage cell cultures were examined to characterize AM1710-mediated suppression of the proinflammatory cytokine tumor necrosis factor-alpha (TNF-α). Either i.p. or i.t. AM1710 reversed CCI-induced mechanical allodynia to sham levels in CB1 R (-/-), (+/-), (+/+) mice. CCI-induced neuropathy decreased IL-10 immunoreactivity (IR) in the dorsal root ganglia (DRG) and the dorsal horn of the spinal cord, with i.t. AM1710 restoring basal IL-10 IR. CCI-induced elevations in proinflammatory cytokine IR were decreased within the spinal cord only after i.t. AM1710 in all mouse genotypes. Meanwhile, within DRG tissue from neuropathic mice, proinflammatory cytokines were decreased following either i.p. or i.t. AM1710. Analysis of cultured supernatants revealed AM1710 decreased TNF-alpha protein. We conclude that CB1 R is dispensable for either peripheral or central anti-allodynic actions of AM1710 in neuropathic mice. Cannabinoid CB2 R agonists produce heightened spinal IL-10 which may be clinically relevant to successfully treat neuropathic pain.
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Affiliation(s)
- Jenny L Wilkerson
- Department of Neurosciences, Health Sciences Center, School of Medicine, University of New Mexico, Albuquerque, NM, USA.,Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - Lauren B Alberti
- Department of Neurosciences, Health Sciences Center, School of Medicine, University of New Mexico, Albuquerque, NM, USA
| | - Audra A Kerwin
- Department of Neurosciences, Health Sciences Center, School of Medicine, University of New Mexico, Albuquerque, NM, USA
| | | | - Ganesh A Thakur
- Center for Drug Discovery, Northeastern University, Boston, MA, USA
| | | | - Erin D Milligan
- Department of Neurosciences, Health Sciences Center, School of Medicine, University of New Mexico, Albuquerque, NM, USA
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11
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Popiolek-Barczyk K, Ciechanowska A, Ciapała K, Pawlik K, Oggioni M, Mercurio D, De Simoni MG, Mika J. The CCL2/CCL7/CCL12/CCR2 pathway is substantially and persistently upregulated in mice after traumatic brain injury, and CCL2 modulates the complement system in microglia. Mol Cell Probes 2020; 54:101671. [PMID: 33160071 DOI: 10.1016/j.mcp.2020.101671] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 10/15/2020] [Accepted: 11/01/2020] [Indexed: 12/28/2022]
Abstract
Traumatic brain injury (TBI) is the leading cause of death in the global population. Disturbed inflammatory processes after TBI exacerbate secondary brain injury and contribute to unfavorable outcomes. Multiple inflammatory events that accompany brain trauma, such as glial activation, chemokine release, or the initiation of the complement system cascade, have been identified as potential targets for TBI treatment. However, the participation of chemokines in the complement activation remains unknown. Our studies sought to determine the changes in the expression of the molecules involved in the CCL2/CCL7/CCL12/CCR2 pathway in the injured brain and the effect of CCL2, CCL7, and CCL12 (10, 100, and 500 ng/mL) on the classic and lectin complement pathways and inflammatory factors in microglial cell cultures. Brain injury in mice was modeled by controlled cortical impact (CCI). Our findings indicate a time-dependent upregulation of CCL2, CCL7, and CCL12 at the mRNA and protein levels within the cortex, striatum, and/or thalamus beginning 24 h after the trauma. The analysis of the expression of the receptor of the tested chemokines, CCR2, revealed its substantial upregulation within the injured brain areas mainly on the mRNA level. Using primary cortical microglial cell cultures, we observed a substantial increase in the expression of CCL2, CCL7, and CCL12 after 24 h of LPS (100 ng/mL) treatment. CCL2 stimulation of microglia increased the level of IL-1β mRNA but did not influence the expression of IL-18, IL-6, and IL-10. Moreover, CCL2 significantly increased the expression of Iba1, a marker of microglia activation. CCL2 and CCL12 upregulated the expression of C1qa but did not influence the expression of C1ra and C1s1 (classical pathway); moreover, CCL2 increased ficolin A expression and reduced collectin 11 expression (lectin pathway). Additionally, we observed the downregulation of pentraxin 3, a modulator of the complement cascade, after CCL2 and CCL12 treatment. We did not detect the expression of ficolin B, Mbl1, and Mbl2 in microglial cells. Our data identify CCL2 as a modulator of the classical and lectin complement pathways suggesting that CCL2 may be a promising target for pharmacological intervention after brain injury. Moreover, our study provides evidence that CCL2 and two other CCR2 ligands may play a role in the development of changes in TBI.
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Affiliation(s)
- Katarzyna Popiolek-Barczyk
- Maj Institute of Pharmacology, Polish Academy of Sciences, Department of Pain Pharmacology, 12 Smetna Str, 31-343, Krakow, Poland
| | - Agata Ciechanowska
- Maj Institute of Pharmacology, Polish Academy of Sciences, Department of Pain Pharmacology, 12 Smetna Str, 31-343, Krakow, Poland
| | - Katarzyna Ciapała
- Maj Institute of Pharmacology, Polish Academy of Sciences, Department of Pain Pharmacology, 12 Smetna Str, 31-343, Krakow, Poland
| | - Katarzyna Pawlik
- Maj Institute of Pharmacology, Polish Academy of Sciences, Department of Pain Pharmacology, 12 Smetna Str, 31-343, Krakow, Poland
| | - Marco Oggioni
- Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156, Milan, Italy
| | - Domenico Mercurio
- Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156, Milan, Italy
| | - Maria-Grazia De Simoni
- Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156, Milan, Italy
| | - Joanna Mika
- Maj Institute of Pharmacology, Polish Academy of Sciences, Department of Pain Pharmacology, 12 Smetna Str, 31-343, Krakow, Poland.
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12
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Pawlik K, Piotrowska A, Kwiatkowski K, Ciapała K, Popiolek‐Barczyk K, Makuch W, Mika J. The blockade of CC chemokine receptor type 1 influences the level of nociceptive factors and enhances opioid analgesic potency in a rat model of neuropathic pain. Immunology 2020; 159:413-428. [PMID: 31919846 PMCID: PMC7078003 DOI: 10.1111/imm.13172] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 12/19/2019] [Accepted: 01/07/2020] [Indexed: 12/15/2022] Open
Abstract
A growing body of evidence has indicated that the release of nociceptive factors, such as interleukins and chemokines, by activated immune and glial cells has crucial significance for neuropathic pain generation and maintenance. Moreover, changes in the production of nociceptive immune factors are associated with low opioid efficacy in the treatment of neuropathy. Recently, it has been suggested that CC chemokine receptor type 1 (CCR1) signaling is important for nociception. Our study provides evidence that the development of hypersensitivity in rats following chronic constriction injury (CCI) of the sciatic nerve is associated with significant up-regulation of endogenous CCR1 ligands, namely, CCL2, CCL3, CCL4, CCL6, CCL7 and CCL9 in the spinal cord and CCL2, CCL6, CCL7 and CCL9 in dorsal root ganglia (DRG). We showed that single and repeated intrathecal administration of J113863 (an antagonist of CCR1) attenuated mechanical and thermal hypersensitivity. Moreover, repeated administration of a CCR1 antagonist enhanced the analgesic properties of morphine and buprenorphine after CCI. Simultaneously, repeated administration of J113863 reduced the protein levels of IBA-1 in the spinal cord and MPO and CD4 in the DRG and, as a consequence, the level of pronociceptive factors, such as interleukin-1β (IL-1β), IL-6 and IL-18. The data obtained provide evidence that CCR1 blockade reduces hypersensitivity and increases opioid-induced analgesia through the modulation of neuroimmune interactions.
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Affiliation(s)
- Katarzyna Pawlik
- Department of Pain PharmacologyMaj Institute of PharmacologyPolish Academy of SciencesKrakowPoland
| | - Anna Piotrowska
- Department of Pain PharmacologyMaj Institute of PharmacologyPolish Academy of SciencesKrakowPoland
| | - Klaudia Kwiatkowski
- Department of Pain PharmacologyMaj Institute of PharmacologyPolish Academy of SciencesKrakowPoland
| | - Katarzyna Ciapała
- Department of Pain PharmacologyMaj Institute of PharmacologyPolish Academy of SciencesKrakowPoland
| | | | - Wioletta Makuch
- Department of Pain PharmacologyMaj Institute of PharmacologyPolish Academy of SciencesKrakowPoland
| | - Joanna Mika
- Department of Pain PharmacologyMaj Institute of PharmacologyPolish Academy of SciencesKrakowPoland
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13
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Chemokines CCL2 and CCL7, but not CCL12, play a significant role in the development of pain-related behavior and opioid-induced analgesia. Cytokine 2019; 119:202-213. [DOI: 10.1016/j.cyto.2019.03.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 03/04/2019] [Accepted: 03/11/2019] [Indexed: 12/28/2022]
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14
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Wu R, Zhang PA, Liu X, Zhou Y, Xu M, Jiang X, Yan J, Xu GY. Decreased miR-325-5p Contributes to Visceral Hypersensitivity Through Post-transcriptional Upregulation of CCL2 in Rat Dorsal Root Ganglia. Neurosci Bull 2019; 35:791-801. [PMID: 30980241 DOI: 10.1007/s12264-019-00372-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 01/16/2019] [Indexed: 12/13/2022] Open
Abstract
Chronic visceral hypersensitivity is an important type of chronic pain with unknown etiology and pathophysiology. Recent studies have shown that epigenetic regulation plays an important role in the development of chronic pain conditions. However, the role of miRNA-325-5p in chronic visceral pain remains unknown. The present study was designed to determine the roles and mechanism of miRNA-325-5p in a rat model of chronic visceral pain. This model was induced by neonatal colonic inflammation (NCI). In adulthood, NCI led to a significant reduction in the expression of miRNA-325-5p in colon-related dorsal root ganglia (DRGs), starting to decrease at the age of 4 weeks and being maintained to 8 weeks. Intrathecal administration of miRNA-325-5p agomir significantly enhanced the colorectal distention (CRD) threshold in a time-dependent manner. NCI also markedly increased the expression of CCL2 (C-C motif chemokine ligand 2) in colon-related DRGs at the mRNA and protein levels relative to age-matched control rats. The expression of CXCL12, IL33, SFRS7, and LGI1 was not significantly altered in NCI rats. CCL2 was co-expressed in NeuN-positive DRG neurons but not in glutamine synthetase-positive glial cells. Furthermore, CCL2 was mainly expressed in isolectin B4-binding- and calcitonin gene-related peptide-positive DRG neurons but in few NF-200-positive cells. More importantly, CCL2 was expressed in miR-325-5p-positive DRG neurons. Intrathecal injection of miRNA-325-5p agomir remarkably reduced the upregulation of CCL2 in NCI rats. Administration of Bindarit, an inhibitor of CCL2, markedly raised the CRD threshold in NCI rats in a dose- and time-dependent manner. These data suggest that NCI suppresses miRNA-325-5p expression and enhances CCL2 expression, thus contributing to visceral hypersensitivity in adult rats.
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Affiliation(s)
- Rui Wu
- Center for Translational Medicine, Affiliated Zhangjiagang Hospital of Soochow University, Zhangjiagang, 215600, China
- Department of Physiology and Neurobiology, Institute of Neuroscience, Soochow University, Suzhou, 215123, China
| | - Ping-An Zhang
- Center for Translational Medicine, Affiliated Zhangjiagang Hospital of Soochow University, Zhangjiagang, 215600, China
- Department of Physiology and Neurobiology, Institute of Neuroscience, Soochow University, Suzhou, 215123, China
| | - Xuelian Liu
- Department of Physiology and Neurobiology, Institute of Neuroscience, Soochow University, Suzhou, 215123, China
| | - Yuan Zhou
- Department of Physiology and Neurobiology, Institute of Neuroscience, Soochow University, Suzhou, 215123, China
| | - Meijie Xu
- Center for Translational Medicine, Affiliated Zhangjiagang Hospital of Soochow University, Zhangjiagang, 215600, China
| | - Xinghong Jiang
- Department of Physiology and Neurobiology, Institute of Neuroscience, Soochow University, Suzhou, 215123, China
| | - Jun Yan
- The Second Affiliated of Hospital Soochow University, Suzhou, 215004, China
| | - Guang-Yin Xu
- Center for Translational Medicine, Affiliated Zhangjiagang Hospital of Soochow University, Zhangjiagang, 215600, China.
- Department of Physiology and Neurobiology, Institute of Neuroscience, Soochow University, Suzhou, 215123, China.
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15
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Aielli F, Ponzetti M, Rucci N. Bone Metastasis Pain, from the Bench to the Bedside. Int J Mol Sci 2019; 20:ijms20020280. [PMID: 30641973 PMCID: PMC6359191 DOI: 10.3390/ijms20020280] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 01/06/2019] [Accepted: 01/07/2019] [Indexed: 12/18/2022] Open
Abstract
Bone is the most frequent site of metastasis of the most common cancers in men and women. Bone metastasis incidence has been steadily increasing over the years, mainly because of higher life expectancy in oncologic patients. Although bone metastases are sometimes asymptomatic, their consequences are most often devastating, impairing both life quality and expectancy, due to the occurrence of the skeletal-related events, including bone fractures, hypercalcemia and spinal cord compression. Up to 75% of patients endure crippling cancer-induced bone pain (CIBP), against which we have very few weapons. This review’s purpose is to discuss the molecular and cellular mechanisms that lead to CIBP, including how cancer cells convert the bone “virtuous cycle” into a cancer-fuelling “vicious cycle”, and how this leads to the release of molecular mediators of pain, including protons, neurotrophins, interleukins, chemokines and ATP. Preclinical tests and assays to evaluate CIBP, including the incapacitance tester (in vivo), and neuron/glial activation in the dorsal root ganglia/spinal cord (ex vivo) will also be presented. Furthermore, current therapeutic options for CIBP are quite limited and nonspecific and they will also be discussed, along with up-and-coming options that may render CIBP easier to treat and let patients forget they are patients.
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Affiliation(s)
- Federica Aielli
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, 67100 L'Aquila, Italy.
| | - Marco Ponzetti
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, 67100 L'Aquila, Italy.
| | - Nadia Rucci
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, 67100 L'Aquila, Italy.
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16
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Kwiatkowski K, Mika J. The importance of chemokines in neuropathic pain development and opioid analgesic potency. Pharmacol Rep 2018; 70:821-830. [PMID: 30122168 DOI: 10.1016/j.pharep.2018.01.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Accepted: 01/22/2018] [Indexed: 12/30/2022]
Abstract
The treatment of neuropathic pain resulting from nervous system malfunction remains a challenging problem for doctors and scientists. The lower effectiveness of conventionally used analgesics in neuropathic pain is associated with complex and not fully understood mechanisms of its development. Undoubtedly, interactions between immune and nervous system are crucial for maintenance of painful neuropathy. Nerve injury induces glial cell activation and thus enhances the production of numerous pronociceptive factors by these cells, including interleukins and chemokines. Increased release of those factors reduces the analgesic efficacy of opioids, which is significantly lower in neuropathic pain than in other painful conditions. This review discusses the role of chemokines from all four subfamilies as essential mediators of neuron-glia interactions occurring under neuropathic pain conditions. Based on available data, we analyse the influence of chemokines on opioid properties. Finally, we identify new direct and indirect pharmacological targets whose modulation may result in effective therapy of neuropathic pain, possibly in combination with opioids.
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Affiliation(s)
- Klaudia Kwiatkowski
- Institute of Pharmacology, Polish Academy of Sciences, Department of Pain Pharmacology, Kraków, Poland.
| | - Joanna Mika
- Institute of Pharmacology, Polish Academy of Sciences, Department of Pain Pharmacology, Kraków, Poland.
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17
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Wang Y, Ni H, Li H, Deng H, Xu LS, Xu S, Zhen Y, Shen H, Pan H, Yao M. Nuclear factor kappa B regulated monocyte chemoattractant protein-1/chemokine CC motif receptor-2 expressing in spinal cord contributes to the maintenance of cancer-induced bone pain in rats. Mol Pain 2018; 14:1744806918788681. [PMID: 29956585 PMCID: PMC6055241 DOI: 10.1177/1744806918788681] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 05/20/2018] [Accepted: 06/08/2018] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Chemokine, monocyte chemoattractant protein-1 (MCP-1), is a potential factor to cause cancer-induced bone pain (CIBP). NF-κB signaling is very important in mediating the expression of chemokines and may have a role in CIBP. However, the mechanism is still unclear. This study investigates the role of NF-κB in CIBP by regulating MCP-1/chemokine CC motif receptor-2 (CCR2) signaling pathway. METHODS A rat CIBP model was established by injecting Walker-256 cells into the tibia medullary cavity. Nine days later, animals were intrathecally administrated with MCP-1 neutralizing antibody, CCR2 antagonist (RS504393), or NF-кB inhibitor (BAY11-7081). Mechanical paw withdrawal threshold was used to assess pain behavior and sciatic functional index, and radiographic images were adopted to evaluate the damage of nerve and bone. The spinal cords were harvested for Western blot and quantitative reverse transcription polymerase chain reaction. The distribution of MCP-1, CCR2, and NF-кB was detected by double immunofluorescent staining. RESULTS CIBP caused remarkable bone destruction, injury of sciatic and femoral nerve, and persistent (>15 days) mechanical allodynia in rats. Tumor cell inoculation upregulate MCP-1 and NF-кB in activated neurons as well as CCR2 in neurons and microglia of the spinal cord. MCP-1 antibody, RS504393, and BAY11-7081 partially reversed CIBP-induced mechanical allodynia, and CIBP regulated the expression levels of pro-inflammatory cytokines, tumor necrosis factor-α and interferon-γ, and anti-inflammatory cytokine, interleukin 4, and BAY11-7081 lowered CIBP-induced MCP-1 and CCR2 expressions in a dose-dependent manner. CONCLUSION In conclusion, NF-кB signaling pathway regulates the expressions of MCP-1/CCR2-induced inflammatory factors in the spinal cord of CIBP rats.
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Affiliation(s)
- Yungong Wang
- Department of Anesthesiology and Pain Medicine, First Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Huadong Ni
- Department of Anesthesiology and Pain Medicine, First Affiliated Hospital of Jiaxing University, Jiaxing, China
- The Second Clinical Medical College, Zhejiang Chinese Medicine University, Hangzhou, China
| | - Hongbo Li
- Department of Anesthesiology and Pain Medicine, First Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Houshen Deng
- Department of Anesthesiology and Pain Medicine, First Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Long S Xu
- Department of Anesthesiology and Pain Medicine, First Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Shijie Xu
- Department of Anesthesiology and Pain Medicine, First Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Ying Zhen
- Department of Anesthesiology and Pain Medicine, First Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Hui Shen
- Department of Anesthesiology and Pain Medicine, First Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Huan Pan
- Department of Anesthesiology and Pain Medicine, First Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Ming Yao
- Department of Anesthesiology and Pain Medicine, First Affiliated Hospital of Jiaxing University, Jiaxing, China
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Lei Y. Myricitrin decreases traumatic injury of the spinal cord and exhibits antioxidant and anti-inflammatory activities in a rat model via inhibition of COX-2, TGF-β1, p53 and elevation of Bcl-2/Bax signaling pathway. Mol Med Rep 2017; 16:7699-7705. [DOI: 10.3892/mmr.2017.7567] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 03/21/2017] [Indexed: 11/05/2022] Open
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Lippi G, Dagostino C, Buonocore R, Aloe R, Bonaguri C, Fanelli G, Allegri M. The serum concentrations of leptin and MCP-1 independently predict low back pain duration. Clin Chem Lab Med 2017; 55:1368-1374. [PMID: 28076310 DOI: 10.1515/cclm-2016-0942] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 12/03/2016] [Indexed: 11/15/2022]
Abstract
BACKGROUND Low back pain (LBP) is a very frequent condition, affecting most people at some point throughout their life. This cross-sectional study was aimed to investigate a selected panel of cytokines and inflammatory biomarkers in patients with or without LBP. METHODS The study population consisted of 104 patients diagnosed with LBP (52 non-persistent and 52 persistent) and 52 healthy subjects with no LBP. Blood samples were collected for assessment of adiponectin, leptin, monocyte chemoattractant protein-1 (MCP-1) and C reactive protein (CRP). The duration of LBP was categorized as "no pain", "non-persistent LBP" and "persistent LBP". RESULTS Higher values of CRP and lower concentrations of both leptin and MCP-1 were found in LBP patients compared to controls, whereas adiponectin did not differ among groups. MCP-1 was also lower in patients with non-persistent than in those with persistent LBP. Age, leptin (relative risk, 11.8; 95% CI, 3.9-35.8) and MCP-1 (relative risk, 2.7; 95% CI, 1.7-4.4) were independently associated with presence and duration of LBP. The combination of age, leptin and MCP-1 predicted 61% of the risk of LBP duration. The area under the curve of MCP-1 for distinguishing persistent from non-persistent LBP was 0.65 (95% CI, 0.54-0.76). CONCLUSIONS Then results of our study suggest that leptin and MCP-1 may be promising biomarkers for diagnosis of acute LBP and its risk to become chronic.
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20
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The relationship between pro-inflammatory cytokines and pain, appetite and fatigue in patients with advanced cancer. PLoS One 2017; 12:e0177620. [PMID: 28542626 PMCID: PMC5444654 DOI: 10.1371/journal.pone.0177620] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2016] [Accepted: 05/01/2017] [Indexed: 12/20/2022] Open
Abstract
Background Systemic inflammation is associated with reduced quality of life and increased symptoms in patients with advanced cancer. The aims of this study were to examine the relationships between inflammatory biomarkers and the Patient Reported Outcome Measures (PROMs) of pain, appetite and fatigue; and to explore whether levels of baseline biomarkers were associated with changes in these PROMs following treatment with corticosteroids. Material and methods An exploratory analysis was done on a trial examining the analgesic properties of corticosteroids in patients with advanced cancer. Inclusion criteria were: >18 years, taking opioids for moderate or severe cancer pain; pain ≥4 (numerical rating scale 0–10). Serum was extracted and levels of inflammatory biomarkers were assessed. PROMs of pain, appetite and fatigue were assessed using the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire-C30 (EORTC QLQ-C30). The relationships between PROMs and inflammatory biomarkers were examined using Spearman Rho-Rank and multiple regression analysis. Results Data were available on 49 patients. Levels of sTNF-r1, IL-6, IL-18, MIF, MCP-1, TGF-β1, IL-1ra, and C-reactive protein (CRP) and Erythrocyte sedimentation rate (ESR) were elevated; IL-1β, IL-2, IL-4, IL-8, IL-10, IL-12(p70), interferon-γ, MIP-1α, and TNF-α were below the level of detection. The following correlations were observed: appetite and IL-6 and CRP; fatigue and IL-1ra (rs: 0.38–0.41, p< .01). There was no association between pretreatment biomarkers and effect from corticosteroid treatment. Conclusion In patients with advanced cancer and pain, some pro-inflammatory cytokines were related to appetite and fatigue. Inflammatory biomarkers were not associated with pain or with the efficacy of corticosteroid therapy. Further research examining the attenuation of the systemic inflammatory response and possible effects on symptoms would be of interest.
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21
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Guo G, Peng Y, Xiong B, Liu D, Bu H, Tian X, Yang H, Wu Z, Cao F, Gao F. Involvement of chemokine CXCL11 in the development of morphine tolerance in rats with cancer-induced bone pain. J Neurochem 2017; 141:553-564. [PMID: 27926984 DOI: 10.1111/jnc.13919] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 11/14/2016] [Accepted: 11/18/2016] [Indexed: 01/26/2023]
Affiliation(s)
- Genhua Guo
- Department of Anesthesiology; Tongji Hospital; Tongji Medical College; Huazhong University of Science & Technology; Wuhan China
- Department of Anesthesiology; The Central People's Hospital of Ji'an City; Ji'an China
| | - Yawen Peng
- Department of Anesthesiology; Tongji Hospital; Tongji Medical College; Huazhong University of Science & Technology; Wuhan China
| | - Bingrui Xiong
- Department of Anesthesiology; Tongji Hospital; Tongji Medical College; Huazhong University of Science & Technology; Wuhan China
| | - Daiqiang Liu
- Department of Anesthesiology; Tongji Hospital; Tongji Medical College; Huazhong University of Science & Technology; Wuhan China
| | - Huilian Bu
- Department of Anesthesiology; The first affiliated hospital of Zhengzhou University; Zhengzhou China
| | - Xuebi Tian
- Department of Anesthesiology; Tongji Hospital; Tongji Medical College; Huazhong University of Science & Technology; Wuhan China
| | - Hui Yang
- Department of Anesthesiology; Tongji Hospital; Tongji Medical College; Huazhong University of Science & Technology; Wuhan China
| | - Zhen Wu
- Department of Anesthesiology; Tongji Hospital; Tongji Medical College; Huazhong University of Science & Technology; Wuhan China
| | - Fei Cao
- Department of Psychiatry and Behavioral Science; UT Health Medical School; Houston Texas USA
| | - Feng Gao
- Department of Anesthesiology; Tongji Hospital; Tongji Medical College; Huazhong University of Science & Technology; Wuhan China
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22
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Ren F, Jiao H, Cai H. Analgesic Effect of Intrathecal Administration of Chemokine Receptor CCR2 Antagonist is Related to Change in Spinal NR2B, nNOS, and SIGIRR Expression in Rat with Bone Cancer Pain. Cell Biochem Biophys 2017; 72:611-6. [PMID: 25653100 DOI: 10.1007/s12013-014-0510-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The purpose of this study is to investigate the analgesic effect of intrathecal injection of chemokine receptor CCR2 antagonist RS102895, and its effect on spinal expression of N-methyl-D-aspartate (NMDA) receptor NR2B subunit, neuronal nitric oxide synthase (nNOS), and SIGIRR in a rat model of bone cancer pain (BCP). A rat model of BCP was established by intro-tibial inoculation of W256 breast cancer cells. Female SD rats were randomly divided into five groups (n = 10 each): Sham group, Sham + RS102895 group, BCP group, BCP + RS102895 group, and BCP + DMSO group. Rats received intrathecal injections of either RS102895 (3 g/l) 10 μl or 10 % DMSO 10 μl on day 9 to day 20 after operation. Pain thresholds of mechanical stimulation and thermal stimulation of each group were measured one day before and at 3rd, 6th, 9th, 12th, 15th, and 20th days after surgery. Spinal expression of NR2B, nNOS, and SIGIRR was detected by RT-PCR and Western blot. CCR2 antagonist RS102895 can suppress the pain induced by both mechanical and thermal stimulation in rats with BCP. Spinal expression of CCR2, NR2B, and nNOS was significantly up-regulated, while SIGIRR was down-regulated in BCP rats, and intrathecal injection of RS102895 effectively reversed the pattern of NR2B, nNOS, and SIGIRR expression in spinal cord. Analgesic effects of CCR2 antagonist RS102895 in BCP rats may be related to its downregulation of signal transduction pathway of NMDAR/nNOS and upregulation of Toll-interleukin-1 receptor member SIGIRR.
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Affiliation(s)
- Fei Ren
- Department of Anesthesiology, Xiangya Hospital of Central South University, Changsha, 410008, Hunan, People's Republic of China
| | - Hena Jiao
- Department of Anesthesiology, Xiangya Hospital of Central South University, Changsha, 410008, Hunan, People's Republic of China
| | - Hongwei Cai
- Department of Anesthesiology, Xiangya Hospital of Central South University, Changsha, 410008, Hunan, People's Republic of China.
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Liu L, Gao XJ, Ren CG, Hu JH, Liu XW, Zhang P, Zhang ZW, Fu ZJ. Monocyte chemoattractant protein-1 contributes to morphine tolerance in rats with cancer-induced bone pain. Exp Ther Med 2016; 13:461-466. [PMID: 28352316 PMCID: PMC5348680 DOI: 10.3892/etm.2016.3979] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 10/21/2016] [Indexed: 12/27/2022] Open
Abstract
Cancer-induced bone pain can severely compromise the life quality of patients, while tolerance limits the use of opioids in the treatment of cancer pain. Monocyte chemoattractant protein-1 (MCP-1) is known to contribute to neuropathic pain. However, the role of spinal MCP-1 in the development of morphine tolerance in patients with cancer-induced bone pain remains unclear. The aim of the present study was to investigate the role of spinal MCP-1 in morphine tolerance in bone cancer pain rats (MTBP rats). Bone cancer pain was induced by intramedullary injection of Walker 256 cells into the tibia of the rats, while morphine tolerance was induced by continuous intrathecal injection of morphine over a period of 9 days. In addition, anti-MCP-1 antibodies were intrathecally injected to rats in various groups in order to investigate the association of MCP-1 with mechanical and heat hyperalgesia using the paw withdrawal threshold (PWT) and thermal withdrawal latency (TWL) tests, respectively. Furthermore, MCP-1 and CCR2 expression levels were measured using reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and western blot analysis, and CCR2 expression levels were measured using RT-qPCR. The results indicated that MCP-1 and CCR2 expression levels were significantly increased in the spinal cord of MTBP rats. Intrathecal administration of anti-MCP-1 neutralizing antibodies was observed to attenuate the mechanical and thermal allodynia in MTBP rats. Therefore, the upregulation of spinal MCP-1 and CCR2 expression levels may contribute to the development of mechanical allodynia in MTBP rats. In conclusion, MCP-1/CCR2 signaling may serve a crucial role in morphine tolerance development in rats suffering from cancer-induced bone pain.
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Affiliation(s)
- Lei Liu
- Department of Pain Management, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China; Department of Anesthesiology, Liaocheng People's Hospital, Liaocheng, Shandong 252000, P.R. China
| | - Xiu-Juan Gao
- Department of Anesthesiology, Liaocheng People's Hospital, Liaocheng, Shandong 252000, P.R. China
| | - Chun-Guang Ren
- Department of Anesthesiology, Liaocheng People's Hospital, Liaocheng, Shandong 252000, P.R. China
| | - Ji-Hua Hu
- Department of Anesthesiology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Xian-Wen Liu
- Department of Anesthesiology, Liaocheng People's Hospital, Liaocheng, Shandong 252000, P.R. China
| | - Ping Zhang
- Department of Anesthesiology, Liaocheng People's Hospital, Liaocheng, Shandong 252000, P.R. China
| | - Zong-Wang Zhang
- Department of Anesthesiology, Liaocheng People's Hospital, Liaocheng, Shandong 252000, P.R. China
| | - Zhi-Jian Fu
- Department of Pain Management, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
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Wang SF, Dong CG, Yang X, Yin JJ. Upregulation of (C-X-C motif) Ligand 13 (CXCL13) Attenuates Morphine Analgesia in Rats with Cancer-Induced Bone Pain. Med Sci Monit 2016; 22:4612-4622. [PMID: 27892451 PMCID: PMC5142588 DOI: 10.12659/msm.897702] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Background The aim of this study was to investigate the role of chemokine (C-X-C motif) ligand 13 (CXCL13) in morphine tolerance in rats with cancer-induced bone pain (CIBP). Material/Methods We established a rat CIBP model and a rat CIBP-morphine tolerance (BM) model. BM rats were intrathecally administered rmCXCL13, neutralizing anti-CXCL13, and normal saline, while the control group rats underwent a sham operation and were injected with normal saline. The morphine analgesia was assessed by measuring mechanical withdrawal threshold (MWT) and mechanical withdrawal duration (MWD) at various time points. The co-expressions of CXCL13 and NeuN were measured by immunofluorescence double-staining. CXCL13 protein and mRNA expressions were detected by Western blot and quantitative real-time polymerase chain reaction (RT-qPCR), respectively. Results Compared to the sham-operation (S) group, the BM group showed obviously decreased MWT and increased MWD on Day 9 after CIBP, but obviously increased MWT and decreased MWD on Day 3 after morphine administration; subsequently, the MWT was decreased and MWD was increased (all P<0.05). In comparison with the S+saline group, increased MWT and decreased MWD were observed in BM rats on Day 3 after anti-CXCL13 administration, and obviously decreased MWT and increased MWD were found in BM rats on Day 3 after rmCXCL13 administration (all P<0.05). Conclusions Up-regulated CXCL13 has a negative role in morphine analgesia in relief of CIBP, which may provide a new target for the management of CIBP.
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Affiliation(s)
- Shi-Feng Wang
- Department of Pathology, South Medical District of Linyi People's Hospital, Linyi, Shandong, China (mainland)
| | - Cheng-Gong Dong
- Department of Pathology, Yantaishan Hospital, Yantai, Shandong, China (mainland)
| | - Xue Yang
- Pediatric Rescue Room, Linyi People's Hospital, Linyi, Shandong, China (mainland)
| | - Jian-Jun Yin
- Health Management Center, Qingdao Hiser Medical Group, Qingdao, Shandong, China (mainland)
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Shenoy PA, Kuo A, Vetter I, Smith MT. The Walker 256 Breast Cancer Cell- Induced Bone Pain Model in Rats. Front Pharmacol 2016; 7:286. [PMID: 27630567 PMCID: PMC5005431 DOI: 10.3389/fphar.2016.00286] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Accepted: 08/18/2016] [Indexed: 12/19/2022] Open
Abstract
The majority of patients with terminal breast cancer show signs of bone metastasis, the most common cause of pain in cancer. Clinically available drug treatment options for the relief of cancer-associated bone pain are limited due to either inadequate pain relief and/or dose-limiting side-effects. One of the major hurdles in understanding the mechanism by which breast cancer causes pain after metastasis to the bones is the lack of suitable preclinical models. Until the late twentieth century, all animal models of cancer induced bone pain involved systemic injection of cancer cells into animals, which caused severe deterioration of animal health due to widespread metastasis. In this mini-review we have discussed details of a recently developed and highly efficient preclinical model of breast cancer induced bone pain: Walker 256 cancer cell- induced bone pain in rats. The model involves direct localized injection of cancer cells into a single tibia in rats, which avoids widespread metastasis of cancer cells and hence animals maintain good health throughout the experimental period. This model closely mimics the human pathophysiology of breast cancer induced bone pain and has great potential to aid in the process of drug discovery for treating this intractable pain condition.
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Affiliation(s)
- Priyank A Shenoy
- School of Biomedical Sciences, The University of QueenslandBrisbane, QLD, Australia; Centre for Integrated Preclinical Drug Development, The University of QueenslandBrisbane, QLD, Australia
| | - Andy Kuo
- Centre for Integrated Preclinical Drug Development, The University of Queensland Brisbane, QLD, Australia
| | - Irina Vetter
- Institute for Molecular Bioscience, The University of QueenslandBrisbane, QLD, Australia; School of Pharmacy, The University of QueenslandBrisbane, QLD, Australia
| | - Maree T Smith
- Centre for Integrated Preclinical Drug Development, The University of QueenslandBrisbane, QLD, Australia; School of Pharmacy, The University of QueenslandBrisbane, QLD, Australia
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Hou Y, Wang L, Gao J, Jin X, Ji F, Yang J. A modified procedure for lumbar intrathecal catheterization in rats. Neurol Res 2016; 38:725-32. [DOI: 10.1080/01616412.2016.1196870] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Llorián-Salvador M, Pevida M, González-Rodríguez S, Lastra A, Fernández-García MT, Hidalgo A, Baamonde A, Menéndez L. Analgesic effects evoked by a CCR2 antagonist or an anti-CCL2 antibody in inflamed mice. Fundam Clin Pharmacol 2016; 30:235-47. [DOI: 10.1111/fcp.12182] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Revised: 12/22/2015] [Accepted: 01/25/2016] [Indexed: 12/22/2022]
Affiliation(s)
- María Llorián-Salvador
- Facultad de Medicina; Laboratorio de Farmacología; Instituto Universitario de Oncología del Principado de Asturias (IUOPA); Universidad de Oviedo; C/Julián Clavería 6 33006 Oviedo Spain
| | - Marta Pevida
- Facultad de Medicina; Laboratorio de Farmacología; Instituto Universitario de Oncología del Principado de Asturias (IUOPA); Universidad de Oviedo; C/Julián Clavería 6 33006 Oviedo Spain
| | - Sara González-Rodríguez
- Facultad de Medicina; Laboratorio de Farmacología; Instituto Universitario de Oncología del Principado de Asturias (IUOPA); Universidad de Oviedo; C/Julián Clavería 6 33006 Oviedo Spain
| | - Ana Lastra
- Facultad de Medicina; Laboratorio de Farmacología; Instituto Universitario de Oncología del Principado de Asturias (IUOPA); Universidad de Oviedo; C/Julián Clavería 6 33006 Oviedo Spain
| | - María-Teresa Fernández-García
- Unidad de Histopatología Molecular en Modelos Animales de Cáncer, IUOPA; Universidad de Oviedo; C/Julián Clavería 6 33006 Oviedo Spain
| | - Agustín Hidalgo
- Facultad de Medicina; Laboratorio de Farmacología; Instituto Universitario de Oncología del Principado de Asturias (IUOPA); Universidad de Oviedo; C/Julián Clavería 6 33006 Oviedo Spain
| | - Ana Baamonde
- Facultad de Medicina; Laboratorio de Farmacología; Instituto Universitario de Oncología del Principado de Asturias (IUOPA); Universidad de Oviedo; C/Julián Clavería 6 33006 Oviedo Spain
| | - Luis Menéndez
- Facultad de Medicina; Laboratorio de Farmacología; Instituto Universitario de Oncología del Principado de Asturias (IUOPA); Universidad de Oviedo; C/Julián Clavería 6 33006 Oviedo Spain
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Slosky LM, Largent-Milnes TM, Vanderah TW. Use of Animal Models in Understanding Cancer-induced Bone Pain. CANCER GROWTH AND METASTASIS 2015; 8:47-62. [PMID: 26339191 PMCID: PMC4552039 DOI: 10.4137/cgm.s21215] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Revised: 06/14/2015] [Accepted: 06/16/2015] [Indexed: 12/13/2022]
Abstract
Many common cancers have a propensity to metastasize to bone. Although malignancies often go undetected in their native tissues, bone metastases produce excruciating pain that severely compromises patient quality of life. Cancer-induced bone pain (CIBP) is poorly managed with existing medications, and its multifaceted etiology remains to be fully elucidated. Novel analgesic targets arise as more is learned about this complex and distinct pain state. Over the past two decades, multiple animal models have been developed to study CIBP’s unique pathology and identify therapeutic targets. Here, we review animal models of CIBP and the mechanistic insights gained as these models evolve. Findings from immunocompromised and immunocompetent host systems are discussed separately to highlight the effect of model choice on outcome. Gaining an understanding of the unique neuromolecular profile of cancer pain through the use of appropriate animal models will aid in the development of more effective therapeutics for CIBP.
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Affiliation(s)
- Lauren M Slosky
- Department of Medical Pharmacology, University of Arizona College of Medicine, Tucson, AZ, USA
| | - Tally M Largent-Milnes
- Department of Medical Pharmacology, University of Arizona College of Medicine, Tucson, AZ, USA
| | - Todd W Vanderah
- Department of Medical Pharmacology, University of Arizona College of Medicine, Tucson, AZ, USA
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29
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Guo G, Gao F. CXCR3: latest evidence for the involvement of chemokine signaling in bone cancer pain. Exp Neurol 2015; 265:176-9. [PMID: 25681573 DOI: 10.1016/j.expneurol.2015.02.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2014] [Revised: 01/22/2015] [Accepted: 02/05/2015] [Indexed: 11/26/2022]
Abstract
Growing evidence indicates that chemokines participate in the generation and maintenance of bone cancer pain (BCP). Recent work in Exp Neurol by Guan et al. (2015) demonstrated the involvement of spinal chemokine receptor CXCR3 and its downstream PI3K/Akt and Raf/MEK/ERK signaling pathways in BCP. This work provides new evidence to support that chemokines participate in central sensitization in BCP condition. Reviewed evidence suggests that few chemokines have been proved to be related to cancer pain. The underlying relationship between CXCR3 signaling and BCP condition requires further study.
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Affiliation(s)
- Genhua Guo
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Road, Wuhan 430030, PR China
| | - Feng Gao
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Road, Wuhan 430030, PR China.
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30
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Llorián-Salvador M, Pevida M, Fernández-García MT, Lastra A, Obaya A, Cal S, Hidalgo A, Menéndez L, Baamonde A. Hypernociceptive responses following the intratibial inoculation of RM1 prostate cancer cells in mice. Prostate 2015; 75:70-83. [PMID: 25263196 DOI: 10.1002/pros.22893] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Accepted: 08/15/2014] [Indexed: 12/22/2022]
Abstract
BACKGROUND Pain due to bone metastases of prostatic origin is a relevant clinical issue. We study here the nociceptive responses obtained in mice receiving the intratibial inoculation of RM1 prostate cancer cells. METHODS 10(2) -10(5) RM1 cells were inoculated to C57BL/6 mice and tumor development was analysed histologically and with luciferase-expressing RM1 cells. Spinal astroglial (GFAP) or microglial (Iba-1) expression was assessed with immunohistochemical methods and hypernociception was measured by the unilateral hot plate, the paw pressure and the von Frey tests. The analgesic effect of morphine, zoledronic acid or the CCR2 antagonist RS504393 was measured. Levels of the chemokines CCL2, CCL3, and CCL5 were determined by ELISA. RESULTS The inoculation of 10(3) RM1 cells induced tumoral growth in bone with a mixed osteoclastic/osteoblastic pattern and evoked astroglial, but not microglial, activation in the spinal cord. Hyperalgesia and allodynia were already established four days after inoculation and dose-dependently inhibited by the s.c. administration of morphine (1-5 mg/kg) or zoledronic acid (1-3 mg/kg). CCL2 and CCL5, but not CCL3, were released by RM1 cells in culture whereas only an increased presence of CCL2 was found in bone tumor homogenates. The administration of the CCR2 antagonist RS504393 (0.3-3 mg/kg) inhibited RM1 induced thermal hyperalgesia without modifying mechanical allodynia. CONCLUSION The intratibial inoculation of RM1 cells in immunocompetent mice induces hypernociceptive responses and can be useful to perform studies of bone cancer induced pain related to androgen-independent prostate cancer. The antinociceptive role derived from the blockade of the CCR2 chemokine receptors is further envisaged.
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Affiliation(s)
- María Llorián-Salvador
- Laboratorio de Farmacología, Facultad de Medicina, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, Asturias, Spain
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MCP-1 stimulates spinal microglia via PI3K/Akt pathway in bone cancer pain. Brain Res 2014; 1599:158-67. [PMID: 25555372 DOI: 10.1016/j.brainres.2014.12.043] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Revised: 12/19/2014] [Accepted: 12/21/2014] [Indexed: 01/25/2023]
Abstract
Accumulating evidence suggests that chemokine monocyte chemoattractant protein-1 (MCP-1) is significantly involved in the activation of spinal microglia associated with pathological pain, at the same time that the phosphatidylinositol 3-kinase/Protein Kinase B (PI3K/Akt) pathway localized in spinal microglia is involved in both neuropathic and inflammatory pain. However, whether there is a connection between MCP-1 and the PI3K/Akt pathway and in their underlying mechanisms in bone cancer pain (BCP) has not yet been elucidated. In the current study, we investigated the expression changes of p-Akt in microglia and OX-42 (microglia marker) after being stimulated with MCP-1 in vitro, as well as in a BCP model that was established by an intramedullary injection of mammary gland carcinoma cells(Walker 256 cells) into the tibia of rats. We observed a significant increase in expression levels of p-Akt and OX-42 in microglia as well as in spinal dorsal horns of BCP rats. Furthermore, the intrathecal administration of an anti-MCP-1 neutralizing antibody or PI3K inhibitor LY294002 reduced the expression of p-Akt or OX-42, and LY294002 attenuated the mechanical allodynia of BCP rats. These results suggest that MCP-1 may stimulate spinal microglia via the PI3K/Akt pathway in BCP.
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Shen W, Hu XM, Liu YN, Han Y, Chen LP, Wang CC, Song C. CXCL12 in astrocytes contributes to bone cancer pain through CXCR4-mediated neuronal sensitization and glial activation in rat spinal cord. J Neuroinflammation 2014; 11:75. [PMID: 24735601 PMCID: PMC3996502 DOI: 10.1186/1742-2094-11-75] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Accepted: 04/03/2014] [Indexed: 12/26/2022] Open
Abstract
Background Previous studies have demonstrated that chemokine CXCL12 and its receptor CXCR4 are critical for pain sensitization, but the mechanisms involved are not clear. In this study, we investigated the specific cellular mechanisms of CXCL12/CXCR4 chemokine signaling in the development and maintenance of bone cancer pain after tumor cell implantation (TCI). Methods TCI in the tibial cavity of rats was used to establish a bone cancer pain model. Mechanical allodynia and thermal hyperalgesia were determined by measuring the paw withdrawal threshold and latency, respectively. The protein expression and cellular localization of CXCL12 and CXCR4 were detected by western blot and immunofluorescence staining. The sensitization of neurons, activation of astrocytes and microglia were examined by observing the immunofluorescence intensity of c-Fos, GFAP and IBA1. Results Our results demonstrated that CXCL12 was upregulated in a time-related manner, both in the dorsal root ganglia and spinal cord after TCI. Spinal CXCL12 was predominately expressed in astrocytes, and an intrathecal injection of astrocyte metabolic inhibitor fluorocitrate or selective JNK inhibitor SP600125 abolished TCI-induced CXCL12 production. A single intrathecal injection of a CXCL12 neutralizing antibody (10 μg/10 μl) at day 10 after TCI transiently reversed bone cancer pain in a dose-dependent manner. Whereas repetitive intrathecal administration of a CXCL12 neutralizing antibody (10 μg/10 μl, once a day from day 3 to 5 after TCI) significantly delayed the onset of TCI-induced pain behaviors for nearly five days. Spinal CXCR4 was also upregulated after TCI and colocalized with neurons, astrocytes and microglia. Blocking CXCR4 suppressed TCI-induced activation of neurons, astrocytes and microglia in the spinal cord at day 14. Repeated intrathecal administration of AMD3100 (5 μg/10 μl, once a day for three days) significantly delayed and suppressed the initiation and persistence of bone cancer pain in the early phase (at day 5, 6 and 7 after TCI) and in the late phase (at day 12, 13 and 14 after TCI) of bone cancer, respectively. Conclusions Taken together, these results demonstrate that CXCL12/CXCR4 signaling contributed to the development and maintenance of bone cancer pain via sensitizing neurons and activating astrocytes and microglia. Additionally, this chemokine signaling may be a potential target for treating bone cancer pain.
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Affiliation(s)
| | - Xue-Ming Hu
- Department of Pain Medicine, The Affiliated Hospital of Xuzhou Medical College, 99 Huaihai West Road, Xuzhou 221002, People's Republic of China.
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Xu J, Zhu MD, Zhang X, Tian H, Zhang JH, Wu XB, Gao YJ. NFκB-mediated CXCL1 production in spinal cord astrocytes contributes to the maintenance of bone cancer pain in mice. J Neuroinflammation 2014; 11:38. [PMID: 24580964 PMCID: PMC3941254 DOI: 10.1186/1742-2094-11-38] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Accepted: 02/21/2014] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Bone cancer pain (BCP) is one of the most disabling factors in patients suffering from primary bone cancer or bone metastases. Recent studies show several chemokines (for example, CCL2, CXCL10) in the spinal cord are involved in the pathogenesis of BCP. Here we investigated whether and how spinal CXCL1 contributes to BCP. METHODS Mouse prostate tumor cell line, RM-1 cells were intramedullary injected into the femur to induce BCP. The mRNA expression of CXCL1 and CXCR2 was detected by quantitative real-time PCR. The protein expression and distribution of CXCL1, NFκB, and CXCR2 was examined by immunofluorescence staining and western blot. The effect of CXCL1 neutralizing antibody, NFκB antagonist, and CXCR2 antagonist on pain hypersensitivity was checked by behavioral testing. RESULTS Intramedullary injection of RM-1 cells into the femur induced cortical bone damage and persistent (>21 days) mechanical allodynia and heat hyperalgesia. Tumor cell inoculation also produced CXCL1 upregulation in activated astrocytes in the spinal cord for more than 21 days. Inhibition of CXCL1 by intrathecal administration of CXCL1 neutralizing antibody at 7 days after inoculation attenuated mechanical allodynia and heat hyperalgesia. In cultured astrocytes, TNF-α induced robust CXCL1 expression, which was dose-dependently decreased by NFκB inhibitor. Furthermore, inoculation induced persistent NFκB phosphorylation in spinal astrocytes. Intrathecal injection of NFκB inhibitor attenuated BCP and reduced CXCL1 increase in the spinal cord. Finally, CXCR2, the primary receptor of CXCL1, was upregulated in dorsal horn neurons after inoculation. Inhibition of CXCR2 by its selective antagonist SB225002 attenuated BCP. CONCLUSION NFκB mediates CXCL1 upregulation in spinal astrocytes in the BCP model. In addition, CXCL1 may be released from astrocytes and act on CXCR2 on neurons in the spinal cord and be involved in the maintenance of BCP. Inhibition of the CXCL1 signaling may provide a new therapy for BCP management.
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Affiliation(s)
| | | | | | | | | | | | - Yong-Jing Gao
- Pain Research Laboratory, Institute of Nautical Medicine, Jiangsu Key Laboratory of Neuroregeneration, Nantong University, 19 Qixiu Road, Nantong 226001, China.
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Ducourneau VR, Dolique T, Hachem-Delaunay S, Miraucourt LS, Amadio A, Blaszczyk L, Jacquot F, Ly J, Devoize L, Oliet SH, Dallel R, Mothet JP, Nagy F, Fénelon VS, Voisin DL. Cancer pain is not necessarily correlated with spinal overexpression of reactive glia markers. Pain 2014; 155:275-291. [DOI: 10.1016/j.pain.2013.10.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Revised: 10/04/2013] [Accepted: 10/07/2013] [Indexed: 12/21/2022]
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Yang Z, Luo W, Wang J, Tan Y, Fu R, Fang B. Chemokine ligand 2 in the trigeminal ganglion regulates pain induced by experimental tooth movement. Angle Orthod 2014; 84:730-6. [PMID: 24417496 DOI: 10.2319/090213-643.1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVE To test the hypothesis that the chemokine ligand 2/chemokine receptor 2 (CCL2/CCR2) signaling pathway plays an important role in pain induced by experimental tooth movement. MATERIALS AND METHODS Expression of CCL2/CCR2 in the trigeminal ganglion (TG) was determined by Western blotting 0 hours, 4 hours, 1 day, 3 days, 5 days, and 7 days after tooth movement. CCL2 localization and cell size distribution were revealed by immunohistochemistry. The effects of increasing force on CCL2 expression and behavioral changes were investigated. Furthermore, the effects of CCL2/CCR2 antagonists on these changes in pain behaviors were all evaluated. Exogenous CCL2 was injected into periodontal tissues and cultured TG neurons with different concentrations, and then the pain responses or c-fos expression were assessed. RESULTS Experimental tooth movement led to a statistically significant increase in CCL2/CCR2 expression from day 3 to day 7, especially in small to medium-sized TG neurons. It also triggered an increase in the time spent on directed face-grooming behaviors in a force magnitude-dependent and CCL2 dose-dependent manner. Pain induced by experimental tooth movement was effectively blocked by a CCR2 antagonist and by CCL2 neutralizing antibody. Also, exogenous CCL2 led to an increase in c-fos expression in cultured TG neurons, which was blocked by CCL2 neutralizing antibody. CONCLUSIONS The peripheral CCL2/CCR2 axis is modulated by experimental tooth movement and involved in the development of tooth movement pain.
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Affiliation(s)
- Zhi Yang
- a Research Scientist and Instructor, Department of Oral and Craniomaxillofacial Science, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, PR China
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Spinal IFN-γ-induced protein-10 (CXCL10) mediates metastatic breast cancer-induced bone pain by activation of microglia in rat models. Breast Cancer Res Treat 2013; 143:255-63. [PMID: 24337539 DOI: 10.1007/s10549-013-2807-4] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Accepted: 12/04/2013] [Indexed: 12/31/2022]
Abstract
Cancer-induced bone pain (CIBP) is a common clinical problem in breast cancer patients with bone metastasis. Recent studies shows chemokines are novel targets for treatment of CIBP. In this study, we intra-tibial inoculated with Walker 256 rat mammary gland carcinoma cells into rat bone to established metastatic breast cancer. Then we measured the expression of CXCL10 in the spinal cord of metastatic bone cancer rats, investigated the role of CXCL10 in the development of CIBP, and the underlying mechanism. Results revealed that after intra-tibial inoculation with Walker 256 cells, rats showed up-regulation of CXCL10 and its receptor CXCR3 in the spinal cord. Interestingly, intrathecally injection of recombinant CXCL10 protein induced mechanical allodynia in naïve rats. Blocking the function of CXCL10/CXCR3 pathway via anti-CXCL10 antibody or CXCR3 antagonist prevented the development of CIBP and microglial activation. Moreover, CXCL10-induced mechanical allodynia was rescued by minocycline treatment during the late-stage of CIBP, days 10-14. The regulation of CXCL10 expression involved microglial activation in a manner of autocrine positive feedback. These results suggest that CXCL10 may be a necessary algogenic molecule, especially in the development of CIBP. Its function was partly mediated via spinal microglial activation. This study provides a novel insight into the biological function of chemokine CXCL10 in the molecular mechanism underlying cancer pain. It also provides new target for clinical treatment of metastatic breast cancer-induced bone pain in future.
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Pevida M, Lastra A, Meana Á, Hidalgo A, Baamonde A, Menéndez L. The chemokine CCL5 induces CCR1-mediated hyperalgesia in mice inoculated with NCTC 2472 tumoral cells. Neuroscience 2013; 259:113-25. [PMID: 24316469 DOI: 10.1016/j.neuroscience.2013.11.055] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2013] [Revised: 11/22/2013] [Accepted: 11/25/2013] [Indexed: 01/20/2023]
Abstract
Although the expression of the chemokine receptor CCR1 has been demonstrated in several structures related to nociception, supporting the nociceptive role of chemokines able to activate it, the involvement of CCR1 in neoplastic pain has not been previously assessed. We have assayed the effects of a CCR1 antagonist, J113863, in two murine models of neoplastic hyperalgesia based on the intratibial injection of either NCTC 2472 fibrosarcoma cells, able to induce osteolytic bone injury, or B16-F10 melanoma cells, associated to mixed osteolytic/osteoblastic bone pathological features. The systemic administration of J113863 inhibited thermal and mechanical hyperalgesia but not mechanical allodynia in mice inoculated with NCTC 2472 cells. Moreover, in these mice, thermal hyperalgesia was counteracted following the peritumoral (10-30μg) but not spinal (3-5μg) administration of J113863. In contrast, hyperalgesia and allodynia measured in mice inoculated with B16-F10 cells remained unaffected after the administration of J113863. The inoculation of tumoral cells did not modify the levels of CCL3 at tumor or spinal cord. In contrast, although the concentration of CCL5 remained unmodified in mice inoculated with B16-F10 cells, increased levels of this chemokine were measured in tumor-bearing limbs, but not the spinal cord, of mice inoculated with NCTC 2472 cells. Increased levels of CCL5 were also found following the incubation of NCTC 2472, but not B16-F10, cells in the corresponding culture medium. The intraplantar injection of CCL5 (0.5ng) to naïve mice evoked thermal hyperalgesia prevented by the coadministration of J113863 or the CCR5 antagonist, d-Ala-peptide T-amide (DAPTA), demonstrating that CCL5 can induce thermal hyperalgesia in mice through the activation of CCR1 or CCR5. However, contrasting with the inhibitory effect evoked by J113863, the systemic administration of DAPTA did not prevent tumoral hyperalgesia. Finally, the peritumoral administration of an anti-CCL5 antibody completely inhibited thermal hyperalgesia evoked by the inoculation of NCTC 2472 cells.
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Affiliation(s)
- M Pevida
- Laboratorio de Farmacología, Facultad de Medicina, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, c/ Julián Clavería 6, 33006 Oviedo, Asturias, Spain.
| | - A Lastra
- Laboratorio de Farmacología, Facultad de Medicina, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, c/ Julián Clavería 6, 33006 Oviedo, Asturias, Spain.
| | - Á Meana
- Centro Comunitario de Sangre y Tejidos del Principado de Asturias, CIBER de Enfermedades Raras (CIBERER), U714, Oviedo, Asturias, Spain.
| | - A Hidalgo
- Laboratorio de Farmacología, Facultad de Medicina, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, c/ Julián Clavería 6, 33006 Oviedo, Asturias, Spain.
| | - A Baamonde
- Laboratorio de Farmacología, Facultad de Medicina, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, c/ Julián Clavería 6, 33006 Oviedo, Asturias, Spain.
| | - Luis Menéndez
- Laboratorio de Farmacología, Facultad de Medicina, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, c/ Julián Clavería 6, 33006 Oviedo, Asturias, Spain.
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38
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Contribution of macrophages to peripheral neuropathic pain pathogenesis. Life Sci 2013; 93:870-81. [DOI: 10.1016/j.lfs.2013.10.005] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2013] [Revised: 09/10/2013] [Accepted: 10/05/2013] [Indexed: 11/24/2022]
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Lozano-Ondoua AN, Symons-Liguori AM, Vanderah TW. Cancer-induced bone pain: Mechanisms and models. Neurosci Lett 2013; 557 Pt A:52-9. [PMID: 24076008 DOI: 10.1016/j.neulet.2013.08.003] [Citation(s) in RCA: 104] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Revised: 07/19/2013] [Accepted: 08/01/2013] [Indexed: 12/13/2022]
Abstract
Cancerous cells can originate in a number of different tissues such as prostate, breast and lung, but often go undetected and are non-painful. Many types of cancers have a propensity to metastasize to the bone microenvironment first. Tumor burden within the bone causes excruciating breakthrough pain with properties of ongoing pain that is inadequately managed with current analgesics. Part of this failure is due to the poor understanding of the etiology of cancer pain. Animal models of cancer-induced bone pain (CIBP) have revealed that the neurochemistry of cancer has features distinctive from other chronic pain states. For example, preclinical models of metastatic cancer often result in the positive modulation of neurotrophins, such as NGF and BDNF, that can lead to nociceptive sensitization. Preclinical cancer models also demonstrate nociceptive neuronal expression of acid-sensing receptors, such as ASIC1 and TRPV1, which respond to cancer-induced acidity within the bone. CIBP is correlated with a significant increase in pro-inflammatory mediators acting peripherally and centrally, contributing to neuronal hypersensitive states. Finally, cancer cells generate high levels of oxidative molecules that are thought to increase extracellular glutamate concentrations, thus activating primary afferent neurons. Knowledge of the unique neuro-molecular profile of cancer pain will ultimately lead to the development of novel and superior therapeutics for CIBP.
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Affiliation(s)
- A N Lozano-Ondoua
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, AZ, USA
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Hu JH, Wu MY, Tao M, Yang JP. Changes in protein expression and distribution of spinal CCR2 in a rat model of bone cancer pain. Brain Res 2013; 1509:1-7. [PMID: 23511129 DOI: 10.1016/j.brainres.2013.03.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2012] [Revised: 03/02/2013] [Accepted: 03/03/2013] [Indexed: 01/09/2023]
Abstract
Accumulating evidence suggests that chemokine C-C motif receptor 2 (CCR2) plays an important role in neuropathic pain. It has been shown that spinal CCR2 is upregulated in several neuropathic pain models and expressed by neuronal and glial cells in the spinal cord. In this study, we investigated the expression changes and cellular localization of spinal CCR2 in a rat model of bone cancer induced by Walker 256 cell inoculation. The present results indicated that mechanical allodynia progressively increased in bone cancer pain (BCP) rats. Western blot and immunohistochemical analysis demonstrated that the expression of CCR2 in the spinal cord was significantly increased on day 6, 12, and 18 in BCP rats, with a peak on day 6. Furthermore, double immunofluorescence labeling indicated that CCR2 was expressed by both microglia and neurons in the spinal cord. These results suggest that CCR2 may be involved in the development of BCP, and that targeting CCR2 may be a new strategy for the treatment of BCP.
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Affiliation(s)
- Ji-Hua Hu
- Department of Anesthesiology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, China
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Kapoor S. Comment on Wu et al.: Functional up-regulation of P2X3 receptors in dorsal root ganglion in a rat model of bone cancer pain. Eur J Pain 2012; 17:140. [PMID: 23233316 DOI: 10.1002/j.1532-2149.2012.00236.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Involvement of CX3CR1 in bone cancer pain through the activation of microglia p38 MAPK pathway in the spinal cord. Brain Res 2012; 1465:1-9. [DOI: 10.1016/j.brainres.2012.05.020] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2012] [Revised: 04/21/2012] [Accepted: 05/11/2012] [Indexed: 12/30/2022]
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