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Wu D, Su J, Wang P, Zhai B, Zhao C, Li W, Chen C, Guan J, Cao Z, Song N, Yang H, Zhang Y, Xu H. Exploration on pharmacological mechanisms of YZP against neuropathic pain via inhibiting spinal inflammation and the rationality of its compatibility. JOURNAL OF ETHNOPHARMACOLOGY 2024; 331:118316. [PMID: 38729540 DOI: 10.1016/j.jep.2024.118316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 05/05/2024] [Accepted: 05/07/2024] [Indexed: 05/12/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Yuanhu Zhitong Prescription (YZP) is a well-known traditional Chinese medicine (TCM) formula for neuropathic pain (NP) therapy with a satisfying clinical efficacy. However, the underlying pharmacological mechanism and its compatibility principle remain unclear. AIM OF THE STUDY This study aims to investigate the analgesic and compatibility mechanisms of YZP on neuropathic pain (NP) at the gene and biological process levels. MATERIALS AND METHODS The chronic constriction injury (CCI) rats were intragastrically administrated with extracts of YZP, YH and BZ separately, and then mechanical hypersensitivity were measured to evaluate the analgesic effects between YH and BZ before and after compatibility. Then, RNA-seq and bioinformatics analyses were performed to elucidate the potential mechanisms underlying YZP's analgesia and compatibility. Finally, the expression levels and significant differences of key genes were analyzed. RESULTS Behaviorally, both YZP and YH effectively alleviated mechanical allodynia in CCI rats, with YZP being superior to YH. In contrast, we did not observe an analgesic effect of BZ. Genetically, YZP, YH, and BZ reversed the expression levels of 52, 34, and 42 aberrant genes in the spinal cord of CCI rats, respectively. Mechanically, YZP was revealed to alleviate NP mainly by modulating the inflammatory response and neuropeptide signaling pathway, which are the dominant effective processes of YH. Interestingly, the effective targets of YZP were especially enriched in leukocyte activation and cytokine-mediated signaling pathways. Moreover, BZ was found to exert an adjunctive effect in enhancing the analgesic effect of YH by promoting skeletal muscle tissue regeneration and modulating calcium ion transport. CONCLUSIONS YH, as the monarch drug, plays a dominant role in the analgesic effect of YZP that effectively relieves NP by inhibiting the spinal inflammation and neuropeptide signaling pathway. BZ, as the minister drug, not only synergistically enhances analgesic processes of YH but also helps to alleviate the accompanying symptoms of NP. Consequently, YZP exerted a more potent analgesic effect than YH and BZ alone. In conclusion, our findings offer new insights into understanding the pharmacological mechanism and compatibility principle of YZP, which may support its clinical application in NP therapy.
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Affiliation(s)
- Dan Wu
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Jin Su
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Ping Wang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Baorong Zhai
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Chunhui Zhao
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Weijie Li
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Chengyu Chen
- Jiaheng (Hengqin, Zhuhai) Pharmaceutical Technology Co. Ltd., Zhuhai, 519000, China
| | - Jianli Guan
- Henan Fusen Pharmaceutical Co., Ltd., Nanyang, 474450, China
| | - Zhiming Cao
- Jiaheng (Hengqin, Zhuhai) Pharmaceutical Technology Co. Ltd., Zhuhai, 519000, China
| | - Naining Song
- Chinese Academy of Inspection and Quarantine, Beijing, 100176, China
| | - Hongjun Yang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Yanqiong Zhang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Haiyu Xu
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China; Key Laboratory for Research and Evaluation of TCM, National Medical Products Administration, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
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Ye Y, Cheng H, Wang Y, Sun Y, Zhang LD, Tang J. Macrophage: A key player in neuropathic pain. Int Rev Immunol 2024:1-14. [PMID: 38661566 DOI: 10.1080/08830185.2024.2344170] [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: 12/20/2023] [Accepted: 04/13/2024] [Indexed: 04/26/2024]
Abstract
Research on the relationship between macrophages and neuropathic pain has flourished in the past two decades. It has long been believed that macrophages are strong immune effector cells that play well-established roles in tissue homeostasis and lesions, such as promoting the initiation and progression of tissue injury and improving wound healing and tissue remodeling in a variety of pathogenesis-related diseases. They are also heterogeneous and versatile cells that can switch phenotypically/functionally in response to the micro-environment signals. Apart from microglia (resident macrophages of both the spinal cord and brain), which are required for the neuropathic pain processing of the CNS, neuropathic pain signals in PNS are influenced by the interaction of tissue-resident macrophages and BM infiltrating macrophages with primary afferent neurons. And the current review looks at new evidence that suggests sexual dimorphism in neuropathic pain are caused by variations in the immune system, notably macrophages, rather than the neurological system.
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Affiliation(s)
- Ying Ye
- Department of Anesthesiology, Jinling Hospital, Affiliated Hospital of Nanjing Medical University, Nanjing, PR China
| | - Hao Cheng
- Department of Anesthesiology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, PR China
| | - Yan Wang
- Department of Anesthesiology, Jinling Hospital, Affiliated Hospital of Nanjing Medical University, Nanjing, PR China
| | - Yan Sun
- Department of Anesthesiology, Jinling Hospital, Affiliated Hospital of Nanjing Medical University, Nanjing, PR China
| | - Li-Dong Zhang
- Department of Anesthesiology, Jinling Hospital, Affiliated Hospital of Nanjing Medical University, Nanjing, PR China
| | - Jun Tang
- Department of Anesthesiology, Jinling Hospital, Affiliated Hospital of Nanjing Medical University, Nanjing, PR China
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Chen SH, Lin YW, Tseng WL, Lin WT, Lin SC, Hsueh YY. Ultrahigh frequency transcutaneous electrical nerve stimulation for neuropathic pain alleviation and neuromodulation. Neurotherapeutics 2024; 21:e00336. [PMID: 38368171 PMCID: PMC10943071 DOI: 10.1016/j.neurot.2024.e00336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 02/04/2024] [Accepted: 02/06/2024] [Indexed: 02/19/2024] Open
Abstract
A challenging complication in patients with peripheral compressive neuropathy is neuropathic pain. Excessive neuroinflammation at the injury site worsens neuropathic pain and impairs function. Currently, non-invasive modulation techniques like transcutaneous electrical nerve stimulation (TENS) have shown therapeutic promise with positive results. However, the underlying regulatory molecular mechanism for pain relief remains complex and unexplored. This study aimed to validate the therapeutic effect of ultrahigh frequency (UHF)-TENS in chronic constriction injury of the rat sciatic nerve. Alleviation of mechanical allodynia was achieved through the application of UHF-TENS, lasting for 3 days after one session of therapy and 4 days after two sessions, without causing additional damage to the myelinated axon structure. The entire tissue collection schedule was divided into four time points: nerve exposure surgery, 7 days after nerve ligation, and 1 and 5 days after one session of UHF therapy. Significant reductions in pain-related neuropeptides, MEK, c-Myc, c-FOS, COX2, and substance P, were observed in the injured DRG neurons after UHF therapy. RNA sequencing of differential gene expression in sensory neurons revealed significant downregulation in Cables, Pik3r1, Vps4b, Tlr7, and Ezh2 after UHF therapy, while upregulation was observed in Nfkbie and Cln3. UHF-TENS effectively and safely relieved neuropathic pain without causing further nerve damage. The decreased production of pain-related neuropeptides within the DRG provided the therapeutic benefit. Possible molecular mechanisms behind UHF-TENS may result from the modulation of the NF-κB complex, toll-like receptor-7, and phosphoinositide 3-kinase/Akt signaling pathways. These results suggest the neuromodulatory effects of UHF-TENS in rat sciatic nerve chronic constriction injury, including alleviation of neuropathic pain, amelioration of pain-related neuropeptides, and regulation of neuroinflammatory gene expression. In combination with the regulation of related neuroinflammatory genes, UHF-TENS could become a new modality for enhancing the treatment of neuropathic pain in the future.
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Affiliation(s)
- Szu-Han Chen
- Division of Plastic and Reconstructive Surgery, Department of Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Center of Cell Therapy, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan; International Research Center for Wound Repair and Regeneration, National Cheng Kung University, Tainan, Taiwan; Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Wen Lin
- Division of Plastic and Reconstructive Surgery, Department of Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Wan-Ling Tseng
- Division of Plastic and Reconstructive Surgery, Department of Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Division of Plastic and Reconstructive Surgery, Department of Surgery, Tainan Hospital, Ministry of Health and Welfare, Tainan 700, Taiwan
| | - Wei-Tso Lin
- Gimer Medical Co., Ltd, New Taipei City, Taiwan
| | - Sheng-Che Lin
- Division of Plastic Surgery, Department of Surgery, An-Nan Hospital, China Medical University, Tainan, Taiwan
| | - Yuan-Yu Hsueh
- Division of Plastic and Reconstructive Surgery, Department of Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Center of Cell Therapy, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan; International Research Center for Wound Repair and Regeneration, National Cheng Kung University, Tainan, Taiwan; Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
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Wang Y, Zheng G, Xie X, Yu W, Wang J, Zang F, Yang C, Xiao Q, Zhang R, Wei L, Wu X, Liang L, Cao P, Xu C, Li J, Hu B, Zhang T, Wu J, Chen H. Low-dose celecoxib-loaded PCL fibers reverse intervertebral disc degeneration by up-regulating CHSY3 expression. J Nanobiotechnology 2023; 21:76. [PMID: 36864461 PMCID: PMC9983215 DOI: 10.1186/s12951-023-01823-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 02/15/2023] [Indexed: 03/04/2023] Open
Abstract
Intervertebral disc degeneration (IDD) has been identified as one of the predominant factors leading to persistent low back pain and disability in middle-aged and elderly people. Dysregulation of Prostaglandin E2 (PGE2) can cause IDD, while low-dose celecoxib can maintain PGE2 at the physiological level and activate the skeletal interoception. Here, as nano fibers have been extensively used in the treatment of IDD, novel polycaprolactone (PCL) nano fibers loaded with low-dose celecoxib were fabricated for IDD treatment. In vitro studies demonstrated that the nano fibers had the ability of releasing low-dose celecoxib slowly and sustainably and maintain PGE2. Meanwhile, in a puncture-induced rabbit IDD model, the nano fibers reversed IDD. Furthermore, low-dose celecoxib released from the nano fibers was firstly proved to promote CHSY3 expression. In a lumbar spine instability-induced mouse IDD model, low-dose celecoxib inhibited IDD in CHSY3wt mice rather than CHSY3-/- mice. This model indicated that CHSY3 was indispensable for low-dose celecoxib to alleviate IDD. In conclusion, this study developed a novel low-dose celecoxib-loaded PCL nano fibers to reverse IDD by maintaining PGE2 at the physiological level and promoting CHSY3 expression.
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Affiliation(s)
- Yunhao Wang
- Spine Center, Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai, 200003, China
| | - Genjiang Zheng
- Spine Center, Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai, 200003, China
| | - Xiaoxing Xie
- Spine Center, Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai, 200003, China
| | - Wei Yu
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, and School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Jianxi Wang
- Spine Center, Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai, 200003, China
| | - Fazhi Zang
- Spine Center, Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai, 200003, China
| | - Chen Yang
- Spine Center, Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai, 200003, China
| | - Qiangqiang Xiao
- Spine Center, Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai, 200003, China
| | - Rongcheng Zhang
- Spine Center, Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai, 200003, China
| | - Leixin Wei
- Spine Center, Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai, 200003, China
| | - Xiaodong Wu
- Spine Center, Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai, 200003, China
| | - Lei Liang
- Spine Center, Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai, 200003, China
| | - Peng Cao
- Spine Center, Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai, 200003, China
| | - Chen Xu
- Spine Center, Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai, 200003, China
| | - Jing Li
- Spine Center, Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai, 200003, China.,Department of Bioinformatics, Center for Translational Medicine, Naval Medical University, Shanghai, 200433, China
| | - Bo Hu
- Spine Center, Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai, 200003, China.
| | - Tao Zhang
- Department of Orthopaedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China.
| | - Jinglei Wu
- Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai, 201620, China.
| | - Huajiang Chen
- Spine Center, Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai, 200003, China.
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Maeda T, Sekiguchi F, Mitani K, Yamagata R, Tsubota M, Yoshida S, Kawabata A. Opioid modulation of T-type Ca 2+ channel-dependent neuritogenesis/neurite outgrowth through the prostaglandin E 2/EP 4 receptor/protein kinase A pathway in mouse dorsal root ganglion neurons. Biochem Biophys Res Commun 2023; 639:142-149. [PMID: 36493557 DOI: 10.1016/j.bbrc.2022.11.108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 11/30/2022] [Indexed: 12/05/2022]
Abstract
Irregular regeneration or inappropriate remodeling of the axons of the primary afferent neurons after peripheral nerve trauma could be associated with the development of neuropathic pain. We analyzed the molecular mechanisms for the neuritogenesis and neurite outgrowth caused by prostaglandin E2 (PGE2) in mouse dorsal root ganglion (DRG) neurons, and evaluated their opioid modulation. PGE2 in combination with IBMX, a phosphodiesterase inhibitor, caused neuritogenesis/neurite outgrowth in DRG cells, an effect abolished by a prostanoid EP4, but not EP2, receptor antagonist, and inhibitors of adenylyl cyclase or protein kinase A (PKA). Blockers of T-type Ca2+ channels (T-channels), that are responsible for window currents involving the sustained low-level Ca2+ entry at voltages near the resting membrane potentials and can be functionally upregulated by PKA, inhibited the neuritogenesis/neurite outgrowth caused by PGE2/IBMX or dibutylyl cyclic AMP, a PKA activator, in DRG neurons, an inhibitory effect mimicked by ZnCl2 and ascorbic acid that block Cav3.2, but not Cav3.1 or Cav3.3, T-channels. Morphine and DAMGO, μ-opioid receptor (MOR) agonists, suppressed the neuritogenesis and/or neurite outgrowth induced by PGE2/IBMX in DRG neurons and also DRG neuron-like ND7/23 cells, an effect reversed by naloxone or β-funaltrexamine, a selective MOR antagonist. Our data suggest that the EP4 receptor/PKA/Cav3.2 pathway is involved in the PGE2-induced neuritogenesis/neurite outgrowth in DRG neurons, which can be suppressed by MOR stimulation. We propose that MOR agonists including morphine in the early phase after peripheral nerve trauma might delay the axonal regeneration of the primary afferent neurons but prevent the development of neuropathic pain.
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Affiliation(s)
- Takashi Maeda
- Laboratory of Pharmacology and Pathophysiology, Faculty of Pharmacy, Kindai University, Higashi-Osaka, 577-8502, Japan
| | - Fumiko Sekiguchi
- Laboratory of Pharmacology and Pathophysiology, Faculty of Pharmacy, Kindai University, Higashi-Osaka, 577-8502, Japan
| | - Kenji Mitani
- Laboratory of Pharmacology and Pathophysiology, Faculty of Pharmacy, Kindai University, Higashi-Osaka, 577-8502, Japan
| | - Ryosuke Yamagata
- Laboratory of Pharmacology and Pathophysiology, Faculty of Pharmacy, Kindai University, Higashi-Osaka, 577-8502, Japan
| | - Maho Tsubota
- Laboratory of Pharmacology and Pathophysiology, Faculty of Pharmacy, Kindai University, Higashi-Osaka, 577-8502, Japan
| | - Shigeru Yoshida
- Department of Life Science, Faculty of Science and Engineering, Kindai University, Higashi-Osaka, 577-8502, Japan
| | - Atsufumi Kawabata
- Laboratory of Pharmacology and Pathophysiology, Faculty of Pharmacy, Kindai University, Higashi-Osaka, 577-8502, Japan.
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Dong Y, Jiang P, Jin X, Jiang N, Huang W, Peng Y, Shen Y, He L, Forsman M, Yang L. Association between long-term static postures exposure and musculoskeletal disorders among university employees: A viewpoint of inflammatory pathways. Front Public Health 2022; 10:1055374. [PMID: 36530652 PMCID: PMC9752851 DOI: 10.3389/fpubh.2022.1055374] [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: 09/27/2022] [Accepted: 11/16/2022] [Indexed: 12/02/2022] Open
Abstract
Background Musculoskeletal disorders (MSDs) are critical occupational and social problems. With the improvement of production mechanization and automation, and the widespread application of computers, more occupations are exposed to static postures and load. This study explored the role of inflammation in the association between static postures exposure and MSDs. Methods This study adopted a prospective nested case-control design in which 66 lower back MSDs cases and 66 healthy controls were selected from a cohort study of university employees. The personal information, postural load, musculoskeletal symptoms, pressure pain thresholds (PPTs), and inflammatory cytokines were collected. Logistic and linear regressions were used to investigate the association among postural load, inflammatory cytokines, and lower back MSDs. Mediation analysis was used to calculate the mediation effect. Results The results of logistic and linear regressions showed that postural load and inflammatory cytokines were positively associated with lower back MSDs (P < 0.05), and postural load was positively associated with inflammatory cytokines (P < 0.05). Further, mediation analysis showed that the mediation effect of postural load on the lower back MSDs through TNF-α was 0.073 (95%CI: 0.025-0.128), and the mediation effect of posture load on the lower back MSDs through IL-6 was 0.098 (95%CI: 0.041-0.179), respectively. Conclusion Static postures were associated with the occurrence of MSDs through inflammatory cytokines, and low-level inflammation may be a critical early event in the generation of MSDs. This study may help bridge the gap of potential mechanisms linking static postures to increased risks of MSDs, and provide new evidence for targeted protection against the global increasing MSDs.
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Affiliation(s)
- Yidan Dong
- Department of Occupational and Environmental Health, School of Public Health, Peking University, Beijing, China
| | - Ping Jiang
- Department of Occupational and Environmental Health, School of Public Health, Peking University, Beijing, China
| | - Xu Jin
- Department of Occupational and Environmental Health, School of Public Health, Peking University, Beijing, China
| | - Nanyu Jiang
- Department of Occupational and Environmental Health, School of Public Health, Peking University, Beijing, China
| | - Wenchu Huang
- Department of Occupational and Environmental Health, School of Public Health, Peking University, Beijing, China
| | - Yu Peng
- Department of Occupational and Environmental Health, School of Public Health, Peking University, Beijing, China
| | - Yuhong Shen
- Institute of Quartermaster Engineering & Technology, Beijing, China
| | - Lihua He
- Department of Occupational and Environmental Health, School of Public Health, Peking University, Beijing, China,*Correspondence: Lihua He
| | - Mikael Forsman
- Division of Ergonomics, School of Engineering Sciences in Chemistry, Biotechnology, and Health, Royal Institute of Technology, Huddinge, Sweden,Unit of Occupational Medicine, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Liyun Yang
- Division of Ergonomics, School of Engineering Sciences in Chemistry, Biotechnology, and Health, Royal Institute of Technology, Huddinge, Sweden,Unit of Occupational Medicine, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
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Gheorghe RO, Grosu AV, Bica-Popi M, Ristoiu V. The Yin/Yang Balance of Communication between Sensory Neurons and Macrophages in Traumatic Peripheral Neuropathic Pain. Int J Mol Sci 2022; 23:ijms232012389. [PMID: 36293246 PMCID: PMC9603877 DOI: 10.3390/ijms232012389] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 10/07/2022] [Accepted: 10/11/2022] [Indexed: 11/06/2022] Open
Abstract
Traumatic peripheral neuropathic pain is a complex syndrome caused by a primary lesion or dysfunction of the peripheral nervous system. Secondary to the lesion, resident or infiltrating macrophages proliferate and initiate a cross-talk with the sensory neurons, at the level of peripheral nerves and sensory ganglia. The neuron–macrophage interaction, which starts very early after the lesion, is very important for promoting pain development and for initiating changes that will facilitate the chronicization of pain, but it also has the potential to facilitate the resolution of injury-induced changes and, consequently, promote the reduction of pain. This review is an overview of the unique characteristics of nerve-associated macrophages in the peripheral nerves and sensory ganglia and of the molecules and signaling pathways involved in the neuro-immune cross-talk after a traumatic lesion, with the final aim of better understanding how the balance between pro- and anti-nociceptive dialogue between neurons and macrophages may be modulated for new therapeutic approaches.
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Su PYP, Zhang L, He L, Zhao N, Guan Z. The Role of Neuro-Immune Interactions in Chronic Pain: Implications for Clinical Practice. J Pain Res 2022; 15:2223-2248. [PMID: 35957964 PMCID: PMC9359791 DOI: 10.2147/jpr.s246883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 07/19/2022] [Indexed: 11/23/2022] Open
Affiliation(s)
- Po-Yi Paul Su
- Department of Anesthesia and Perioperative Care, University of California San Francisco, San Francisco, CA, USA
| | - Lingyi Zhang
- Department of Anesthesia and Perioperative Care, University of California San Francisco, San Francisco, CA, USA
- Department of Anesthesiology, the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, People’s Republic of China
| | - Liangliang He
- Department of Anesthesia and Perioperative Care, University of California San Francisco, San Francisco, CA, USA
- Department of Pain Management, Xuanwu Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Na Zhao
- Department of Anesthesia and Perioperative Care, University of California San Francisco, San Francisco, CA, USA
| | - Zhonghui Guan
- Department of Anesthesia and Perioperative Care, University of California San Francisco, San Francisco, CA, USA
- Correspondence: Zhonghui Guan, Department of Anesthesia and Perioperative Care, University of California San Francisco, San Francisco, CA, USA, Tel +415.885.7246, Fax +415.885.7575, Email
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Macrophage as a Peripheral Pain Regulator. Cells 2021; 10:cells10081881. [PMID: 34440650 PMCID: PMC8392675 DOI: 10.3390/cells10081881] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/22/2021] [Accepted: 07/22/2021] [Indexed: 12/30/2022] Open
Abstract
A neuroimmune crosstalk is involved in somatic and visceral pathological pain including inflammatory and neuropathic components. Apart from microglia essential for spinal and supraspinal pain processing, the interaction of bone marrow-derived infiltrating macrophages and/or tissue-resident macrophages with the primary afferent neurons regulates pain signals in the peripheral tissue. Recent studies have uncovered previously unknown characteristics of tissue-resident macrophages, such as their origins and association with regulation of pain signals. Peripheral nerve macrophages and intestinal resident macrophages, in addition to adult monocyte-derived infiltrating macrophages, secrete a variety of mediators, such as tumor necrosis factor-α, interleukin (IL)-1β, IL-6, high mobility group box 1 and bone morphogenic protein 2 (BMP2), that regulate the excitability of the primary afferents. Neuron-derived mediators including neuropeptides, ATP and macrophage-colony stimulating factor regulate the activity or polarization of diverse macrophages. Thus, macrophages have multitasks in homeostatic conditions and participate in somatic and visceral pathological pain by interacting with neurons.
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Ohnesorge N, Heinl C, Lewejohann L. Current Methods to Investigate Nociception and Pain in Zebrafish. Front Neurosci 2021; 15:632634. [PMID: 33897350 PMCID: PMC8061727 DOI: 10.3389/fnins.2021.632634] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 03/16/2021] [Indexed: 12/13/2022] Open
Abstract
Pain is an unpleasant, negative emotion and its debilitating effects are complex to manage. Mammalian models have long dominated research on nociception and pain, but there is increasing evidence for comparable processes in fish. The need to improve existing pain models for drug research and the obligation for 3R refinement of fish procedures facilitated the development of numerous new assays of nociception and pain in fish. The zebrafish is already a well-established animal model in many other research areas like toxicity testing, as model for diseases or regeneration and has great potential in pain research, too. Methods of electrophysiology, molecular biology, analysis of reflexive or non-reflexive behavior and fluorescent imaging are routinely applied but it is the combination of these tools what makes the zebrafish model so powerful. Simultaneously, observing complex behavior in free-swimming larvae, as well as their neuronal activity at the cellular level, opens new avenues for pain research. This review aims to supply a toolbox for researchers by summarizing current methods to study nociception and pain in zebrafish. We identify treatments with the best algogenic potential, be it chemical, thermal or electric stimuli and discuss options of analgesia to counter effects of nociception and pain by opioids, non-steroidal anti-inflammatory drugs (NSAIDs) or local anesthetics. In addition, we critically evaluate these practices, identify gaps of knowledge and outline potential future developments.
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Affiliation(s)
- Nils Ohnesorge
- German Federal Institute for Risk Assessment (BfR), German Centre for the Protection of Laboratory Animals (Bf3R), Berlin, Germany
| | - Céline Heinl
- German Federal Institute for Risk Assessment (BfR), German Centre for the Protection of Laboratory Animals (Bf3R), Berlin, Germany
| | - Lars Lewejohann
- German Federal Institute for Risk Assessment (BfR), German Centre for the Protection of Laboratory Animals (Bf3R), Berlin, Germany
- Institute of Animal Welfare, Animal Behavior and Laboratory Animal Science, Freie Universität Berlin, Berlin, Germany
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Pinheiro KDV, Brusco I, Hausen BDS, Moresco RN, Rigo FK, Oliveira SM, Ferreira J. Efficacy of the World Health Organization analgesic ladder in the paclitaxel-induced pain syndrome in rats. Inflammopharmacology 2020; 28:1677-1689. [PMID: 32266637 DOI: 10.1007/s10787-020-00702-w] [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: 11/28/2019] [Accepted: 03/15/2020] [Indexed: 12/24/2022]
Abstract
Paclitaxel use in cancer treatment is limited by a painful syndrome that has no effective treatment. Despite new therapies, drugs of the World Health Organization (WHO) analgesic ladder remain a useful therapeutic tool for cancer pain relief. Since cancer pain is caused by both tumor and chemotherapy, we assessed the efficacy of drugs from the WHO analgesic ladder for cancer pain relief in a paclitaxel-induced pain syndrome (P-IPS) model. P-IPS was induced in rats by one or four injections of paclitaxel on alternate days. The acute and chronic phases were assessed 24 h and 15 days after the first paclitaxel injection, respectively. The mechanical allodynia was evaluated after (step 1 of the ladder) paracetamol, (step 2) codeine alone or plus paracetamol and (step 3) morphine treatment in the acute or chronic phase of P-IPS. Paracetamol, codeine and morphine were equally efficacious in reducing the acute phase of the P-IPS. Codeine plus paracetamol had similar efficacy and potency when administered together in the acute phase of the P-IPS, but produced a longer-lasting effect than when separately managed. Moreover, paracetamol, codeine and morphine partially reduced the chronic phase of P-IPS, losing their efficacy and, in the case of codeine, potency when compared to the acute phase. However, paracetamol plus codeine increased the potency and efficacy of the codeine when compared to codeine administered alone in the chronic phase of P-IPS, producing a long-lasting anti-allodynic effect. Together, analgesics of WHO analgesic ladder reduce both acute and chronic phases of P-IPS, with codeine plus paracetamol presenting more potent, efficacious and long-lasting effect. Thus, in addition to tumor pain, drugs of WHO analgesics ladder could also be useful to treat P-IPS.
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Affiliation(s)
| | - Indiara Brusco
- Graduate Program in Biological Sciences: Biochemistry Toxicology, Department of Biochemistry and Molecular Biology, Federal University of Santa Maria, Camobi, Santa Maria, 97105-900, RS, Brazil
| | - Bruna Dos Santos Hausen
- Graduate Program in Pharmaceutics Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Rafael Noal Moresco
- Graduate Program in Pharmacology, Federal University of Santa Maria, Santa Maria, RS, Brazil.,Graduate Program in Pharmaceutics Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Flávia K Rigo
- Graduate Program in Health Sciences, University of Extrem South Catarina, Criciuma, SC, Brazil
| | - Sara Marchesan Oliveira
- Graduate Program in Biological Sciences: Biochemistry Toxicology, Department of Biochemistry and Molecular Biology, Federal University of Santa Maria, Camobi, Santa Maria, 97105-900, RS, Brazil.
| | - Juliano Ferreira
- Graduate Program in Pharmacology, Federal University of Santa Maria, Santa Maria, RS, Brazil. .,Graduate Program in Biological Sciences: Biochemistry Toxicology, Department of Biochemistry and Molecular Biology, Federal University of Santa Maria, Camobi, Santa Maria, 97105-900, RS, Brazil. .,Graduate Program in Pharmacology, Department of Pharmacology, Federal University of Santa Catarina, Campus Reitor João David Ferreira Lima, Trindade, Florianópolis, 88040-900, SC, Brazil.
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12
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Brandolini L, Castelli V, Aramini A, Giorgio C, Bianchini G, Russo R, De Caro C, d'Angelo M, Catanesi M, Benedetti E, Giordano A, Cimini A, Allegretti M. DF2726A, a new IL-8 signalling inhibitor, is able to counteract chemotherapy-induced neuropathic pain. Sci Rep 2019; 9:11729. [PMID: 31409858 PMCID: PMC6692352 DOI: 10.1038/s41598-019-48231-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 07/29/2019] [Indexed: 12/25/2022] Open
Abstract
Chemotherapy-induced peripheral neuropathy (CIPN) is a common dose-limiting side effect of several anti-neoplastics and a main cause of sensory disturbances in cancer survivors, negatively impacting patients' quality of life. Peripheral nerve degeneration or small fibre neuropathy is generally accepted as the underlying mechanism in the development of CIPN. Recent evidence has contributed to clarify the determinant role of cytokines and chemokines in the process leading to neuronal hyperexcitability. Exposure to oxaliplatin triggers alterations in peripheral neuropathic pathways previously linked to IL-8 pathway. We investigated a novel selective inhibitor of IL-8 receptors, DF2726A, and showed its effects in counteracting CINP pathways, extending the relevance of the activation of IL-8 pathway to the class of platinum chemotherapeutics. Based on our results, we suggest that DF2726A might be a promising candidate for clinical treatment of CIPN conditions due to its efficacy and optimized pharmacokinetic/pharmacodynamic profile.
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Affiliation(s)
| | - Vanessa Castelli
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Andrea Aramini
- Dompé Farmaceutici SpA, Via Campo di Pile, L'Aquila, Italy
| | | | | | - Roberto Russo
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Carmen De Caro
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Michele d'Angelo
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Mariano Catanesi
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Elisabetta Benedetti
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - Antonio Giordano
- Department of Medical Biotechnology, University of Siena, Siena, Italy.,Sbarro Institute for Cancer Research and Molecular Medicine and Center for Biotechnology, Temple University, Philadelphia, USA
| | - Annamaria Cimini
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy. .,Sbarro Institute for Cancer Research and Molecular Medicine and Center for Biotechnology, Temple University, Philadelphia, USA.
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13
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A bioinformatics investigation into the pharmacological mechanisms of the effect of Fufang Danshen on pain based on methodologies of network pharmacology. Sci Rep 2019; 9:5913. [PMID: 30976033 PMCID: PMC6459854 DOI: 10.1038/s41598-019-40694-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 12/20/2018] [Indexed: 12/31/2022] Open
Abstract
Fufang Danshen (FFDS), a Chinese medicine formula widely used in the clinic, has proven therapeutic effects on pain relief. However, the mechanisms of these effects have not been elucidated. Here, we performed a systematic analysis to discover the mechanisms of FFDS in attenuating pain to gain a better understanding of FFDS in the treatment of other diseases accompanied by pain. Relevance analysis showed that Salvia miltiorrhizae was the best studied herb in FFDS. Most compounds in FFDS have good bioavailability, and we collected 223 targets for 35 compounds in FFDS. These targets were significantly enriched in many pathways related to pain and can be classified as signal transduction, endocrine system, nervous system and lipid metabolism. We compared Salvia miltiorrhizae and Panax notoginseng and found that they can significantly affect different pathways. Moreover, ten pain disease proteins and 45 therapeutic targets can be directly targeted by FFDS. All 45 therapeutic targets have direct or indirect connections with pain disease proteins. Forty-six pain disease proteins can be indirectly affected by FFDS, especially through heat shock cognate 71 kDa protein (HSPA8) and transcription factor AP-1 (JUN). A total of 109 targets of FFDS were identified as significant targets.
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14
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Peng S, Lu Y, Li P, Liu P, Shi X, Liu C, Zhang Y, Liu S, Wang J. The short interference RNA (siRNA) targeting NMUR2 relieves nociception in a bone cancer pain model of rat through PKC-ERK and PI3K-AKT pathways. Biochem Biophys Res Commun 2019; 512:616-622. [PMID: 30914203 DOI: 10.1016/j.bbrc.2019.03.067] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 03/12/2019] [Indexed: 11/29/2022]
Abstract
BACKGROUND/AIM Bone cancer pain (BCP) causes troubles and burdens to patients globally. Increasing evidence proved that neuromedin U receptor 2 (NMUR2) was involved in pains. Our study was performed to investigate the role of NMUR2 on BCP and the underlying mechanism. METHODS The rats were raised and BCP rat model was established by injection with Walker 256 cells. The RNA and protein expression levels of NMUR2 in rat neurons-dorsal spinal cord cells, RNdsc cells were detected by qRT-PCR and western blot. The administration with NMUR2 was via intrathecal injection with siRNA to silence NMUR2. The tolerance of rat to pain was measured by mechanical allodynia test and presented by paw withdrawal threshold (PWT) value. The effects on protein kinase C (PKC)/extracellular regulated protein kinases (ERK) and phosphatidylinositol-3-kinase (PI3K)/protein kinase B (AKT) signal pathways were examined by western blot. RESULTS The expression of NMUR2 in both mRNA and protein levels was upregulated in BCP rat model. In addition, siRNA injection significantly decreased the expression of NMUR2 on the 3rd, 7th and 14th day. BCP group revealed lower PWT value compared with control while NMUR2 silence increased the PWT value compared with negative control. The phosphorylation of PKC, ERK, PI3K and AKT was increased in BCP model while was decreased by si-NMUR2. PKC/ERK and PI3K/AKT inhibitor administration increased the PWT value compared with BCP group. CONCLUSION si-NMUR2 alleviates BCP via inactivation of PKC/ERK and PI3K/AKT signal pathways.
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Affiliation(s)
- Sheng Peng
- Department of Anesthesiology, Seventh People's Hospital of Shanghai University of TCM, No.358 Datong Road, Shanghai, 200137, China
| | - Yingjun Lu
- Department of Anesthesiology, Shanghai Songjiang District Central Hospital, No.748 Zhongshan Middle Road, Shanghai, 201600, China.
| | - Pengyi Li
- Department of Anesthesiology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research and The Affiliated Cancer Hospital of Nanjing Medical University, No.42 Baiziting, Nanjing, 210009, China
| | - Peirong Liu
- Department of Anesthesiology, Seventh People's Hospital of Shanghai University of TCM, No.358 Datong Road, Shanghai, 200137, China
| | - Xiaowei Shi
- Department of Anesthesiology, Seventh People's Hospital of Shanghai University of TCM, No.358 Datong Road, Shanghai, 200137, China
| | - Chunliang Liu
- Department of Anesthesiology, Seventh People's Hospital of Shanghai University of TCM, No.358 Datong Road, Shanghai, 200137, China
| | - Yu Zhang
- Department of Anesthesiology, Seventh People's Hospital of Shanghai University of TCM, No.358 Datong Road, Shanghai, 200137, China
| | - Shasha Liu
- Department of Anesthesiology, Seventh People's Hospital of Shanghai University of TCM, No.358 Datong Road, Shanghai, 200137, China
| | - Jing Wang
- Department of Anesthesiology, Seventh People's Hospital of Shanghai University of TCM, No.358 Datong Road, Shanghai, 200137, China
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Leisengang S, Ott D, Murgott J, Gerstberger R, Rummel C, Roth J. Primary Cultures from Rat Dorsal Root Ganglia: Responses of Neurons and Glial Cells to Somatosensory or Inflammatory Stimulation. Neuroscience 2018; 394:1-13. [PMID: 30342197 DOI: 10.1016/j.neuroscience.2018.10.018] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 09/11/2018] [Accepted: 10/09/2018] [Indexed: 12/22/2022]
Abstract
Primary cultures of rat dorsal root ganglia (DRG) consist of neurons, satellite glial cells and a moderate number of macrophages. Measurements of increased intracellular calcium [Ca2+]i induced by stimuli, have revealed that about 70% of DRG neurons are capsaicin-responsive nociceptors, while 10% responded to cooling and or menthol (putative cold sensors). Cultivation of DRG in the presence of a moderate dose of lipopolysaccharide (LPS, 1 µg/ml) enhanced capsaicin-induced Ca2+ signals. We therefore investigated further properties of DRG primary cultures stimulated with 10 µg/ml LPS for a short period. Exposure to LPS for 2 h resulted in pronounced release of tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) into the supernatants of DRG cultures, increased expression of both cytokines in the DRG cells and increased TNF immunoreactivity predominantly in macrophages. We further observed an accumulation of the inflammatory transcription factors NF-IL6 and STAT3 in the nuclei of LPS-exposed DRG neurons and macrophages. In the presence of the cytotoxic agent cisplatin (5 or 10 µg/ml), the number of macrophages was decreased significantly, the growth of satellite glial cells was markedly suppressed, but the vitality and stimulus-induced Ca2+ signals of DRG neurons were not impaired. Under these conditions the LPS-induced production and expression of TNF-α and IL-6 were blunted. Our data suggest a potential role for macrophages and satellite glial cells in the initiation of inflammatory processes that develop in sensory ganglia upon injury or exposure to pathogens.
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Affiliation(s)
- Stephan Leisengang
- Department of Veterinary-Physiology and -Biochemistry, Justus-Liebig University Giessen, Frankfurter Strasse 100, D-35392 Giessen, Germany
| | - Daniela Ott
- Department of Veterinary-Physiology and -Biochemistry, Justus-Liebig University Giessen, Frankfurter Strasse 100, D-35392 Giessen, Germany
| | - Jolanta Murgott
- Department of Veterinary-Physiology and -Biochemistry, Justus-Liebig University Giessen, Frankfurter Strasse 100, D-35392 Giessen, Germany
| | - Rüdiger Gerstberger
- Department of Veterinary-Physiology and -Biochemistry, Justus-Liebig University Giessen, Frankfurter Strasse 100, D-35392 Giessen, Germany
| | - Christoph Rummel
- Department of Veterinary-Physiology and -Biochemistry, Justus-Liebig University Giessen, Frankfurter Strasse 100, D-35392 Giessen, Germany; Center for Mind, Brain and Behavior CMBB, Philipps-Universität of Marburg & Justus-Liebig-University of Giessen, Germany
| | - Joachim Roth
- Department of Veterinary-Physiology and -Biochemistry, Justus-Liebig University Giessen, Frankfurter Strasse 100, D-35392 Giessen, Germany; Center for Mind, Brain and Behavior CMBB, Philipps-Universität of Marburg & Justus-Liebig-University of Giessen, Germany.
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16
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Abstract
INTRODUCTION Neuropathic pain (NP) is a particularly severe and intractable chronic condition that is not well treated by commonly recommended systemic pharmacological therapies, partly due to dose-limiting side effects or adverse events. The use of topical therapeutics for NP is growing and benefits from the reduced potential for adverse effects, as well as the ability to directly target peripheral pathological processes. AREAS COVERED The current review defines and describes the limitations of various commonly prescribed systemic pharmacological therapies for NP. It also provides a justification for increased research aimed at developing topical therapeutics for NP, particularly localized and peripheral NP. The review discusses the various classes of topical treatments used for NP, including agents that: block sensory inputs; activate inhibitory systems; provide mechanism-based therapeutics; are used in mucosal tissues; and include combinations that produce multimodal therapeutic effects. EXPERT OPINION There are arguments that the current topical therapeutics for NP rely too heavily on the use of local anesthetics and capsaicinoids, and more research is certainly needed on topical therapies that are multimodal and/or are targeted at the peripheral sources of pathology. The potential for novel topical therapeutics may be enhanced by further research on topical co-drugs, drug-drug salts, co-crystals and hydrates, and ionic liquids.
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Affiliation(s)
- Terence J Coderre
- a Depts. of Anesthesia, Neurology & Neurosurgery, and Psychology, and Division of Experimental Medicine , McGill University , Montreal , QC , Canada.,b McGill University Health Centre Research Institute , Montreal , QC , Canada
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Ma W, St-Jacques B. Signalling transduction events involved in agonist-induced PGE2/EP4 receptor externalization in cultured rat dorsal root ganglion neurons. Eur J Pain 2018; 22:845-861. [PMID: 29336505 DOI: 10.1002/ejp.1172] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/08/2017] [Indexed: 12/21/2022]
Abstract
BACKGROUND Prostaglandin E2 (PGE2) enriched in inflamed tissues contributes to chronic pain by sensitizing nociceptive dorsal root ganglion (DRG) neurons (nociceptors). Of four PGE2 receptors (EP1-4), EP4 plays a major role in PGE2-induced nociceptor sensitization. We have previously reported that PGE2 or EP4 agonists stimulated EP4 externalization in cultured DRG neurons and this event contributes to nociceptor sensitization. However, the signalling transduction events governing this event remain unknown. METHODS In this study, using antibody-based externalization assay, we examined EP subtypes and multiple signalling transduction events involved in PGE2-induced EP4 externalization in cultured DRG neurons. RESULTS In addition to EP4 agonist, EP2 agonist, to a lesser extent, also induced EP4 externalization while EP1 and EP3 agonists had no effect. The extracellular and intracellular calcium chelators, the inhibitors of CaMKII, cAMP, PKA, PKC, PKCε, PLC, MAPKs, PI3K and Akt suppressed agonist-induced EP4 externalization. The activator of AC, two PKA-specific cAMP analogues and one Epac-specific cAMP analogue also induced EP4 externalization. ELISA showed that double sequential exposures to EP4 agonists induced a greater release of pain peptide CGRP from cultured DRG neurons than a single exposure, an event blocked by the inhibitor of anterograde transport from ER/Golgi complex to cell surface. CONCLUSIONS Taken together, these data suggest that mobilization of extracellular and intracellular calcium as well as the activation of CaMKII, cAMP/PKA, cAMP/Epac, PKC/PKCε, MAPKs, PI3K-Akt and PLC signalling transduction pathways are involved in agonist-induced EP4 externalization. Agonist-enhanced EP4 externalization increases EP4 cell surface abundance and activity, thus enhancing nociceptor sensitization. SIGNIFICANCE This study adds mechanistic information regarding signalling transduction events involved in agonist-induced EP4 cell surface trafficking. EP4 and EP2 (to lesser extent) receptors, extra- and intracellular Ca++ , CaKMII, cAMP, PKA, PKC, PKCε, PLC, MAPK, PI3K and Akt are involved in this event. Agonist-induced EP4 externalization contributes to enhanced nociceptor sensitization.
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Affiliation(s)
- W Ma
- Douglas Mental Health University Institute, McGill University, Montréal, Canada.,Department of Psychiatry, McGill University, Montréal, Canada
| | - B St-Jacques
- Douglas Mental Health University Institute, McGill University, Montréal, Canada
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18
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Association of inflammatory mediators with pain perception. Biomed Pharmacother 2017; 96:1445-1452. [DOI: 10.1016/j.biopha.2017.12.001] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 12/01/2017] [Accepted: 12/01/2017] [Indexed: 12/31/2022] Open
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Brusco I, Camponogara C, Carvalho FB, Schetinger MRC, Oliveira MS, Trevisan G, Ferreira J, Oliveira SM. α-Spinasterol: a COX inhibitor and a transient receptor potential vanilloid 1 antagonist presents an antinociceptive effect in clinically relevant models of pain in mice. Br J Pharmacol 2017; 174:4247-4262. [PMID: 28849589 DOI: 10.1111/bph.13992] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 08/14/2017] [Accepted: 08/16/2017] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND AND PURPOSE Postoperative pain is one of the most common manifestations of acute pain and is an important problem faced by patients after surgery. Moreover, neuronal trauma or chemotherapeutic treatment often causes neuropathic pain, which induces disabling and distressing symptoms. At present, treatments of both painful conditions are inadequate. α-Spinasterol, which is well characterized as a transient receptor potential vanilloid 1 antagonist, has anti-inflammatory, antioxidant and antinociceptive effects. Therefore, we investigated its antinociceptive potential on postoperative and neuropathic pain, as well as its effect on COX-1 and COX-2 activities. EXPERIMENTAL APPROACH Nociceptive responses in a postoperative pain model (surgical incision-induced) or different neuropathic pain models (trauma or chemotherapy-induced) were investigated in mice. KEY RESULTS Oral administration of α-spinasterol reduced postoperative pain, when given as a pre- (0.5 h before incision) or post-treatment (0.5 h after incision), and reduced cell infiltration in the injured tissue. α-Spinasterol also reduced the mechanical allodynia induced by partial sciatic nerve ligation and the mechanical and cold allodynia induced by paclitaxel. Moreover, α-spinasterol inhibited COX-1 and COX-2 enzyme activities without altering the body temperature of animals. Importantly, α-spinasterol did not alter spontaneous or forced locomotor activity. Furthermore, it did not cause gastric damage or liver and kidney changes, nor did it alter cell viability in the cerebral cortex and spinal cord slices of mice. CONCLUSION AND IMPLICATIONS α-Spinasterol is an effective and safe COX inhibitor with antinociceptive effects in postoperative and neuropathic pain models. Therefore, it is an interesting prototype for the development of novel analgesic drugs.
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Affiliation(s)
- Indiara Brusco
- Graduate Program in Biological Sciences, Biochemistry Toxicology, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Camila Camponogara
- Graduate Program in Biological Sciences, Biochemistry Toxicology, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Fabiano Barbosa Carvalho
- Graduate Program in Biological Sciences, Biochemistry Toxicology, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Maria Rosa Chitolina Schetinger
- Graduate Program in Biological Sciences, Biochemistry Toxicology, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Mauro Schneider Oliveira
- Graduate Program in Pharmacology, Department of Physiology and Pharmacology, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Gabriela Trevisan
- Graduate Program in Pharmacology, Department of Physiology and Pharmacology, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Juliano Ferreira
- Graduate Program in Pharmacology, Department of Pharmacology, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - Sara Marchesan Oliveira
- Graduate Program in Biological Sciences, Biochemistry Toxicology, Federal University of Santa Maria, Santa Maria, RS, Brazil.,Department of Biochemistry and Molecular Biology, Federal University of Santa Maria, Santa Maria, RS, Brazil
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St-Jacques B, Ma W. Preferred recycling pathway by internalized PGE2 EP4 receptor following agonist stimulation in cultured dorsal root ganglion neurons contributes to enhanced EP4 receptor sensitivity. Neuroscience 2016; 326:56-68. [PMID: 27060485 DOI: 10.1016/j.neuroscience.2016.04.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Revised: 04/01/2016] [Accepted: 04/02/2016] [Indexed: 10/22/2022]
Abstract
Prostaglandin E2 (PGE2), a well-known pain mediator abundantly produced in injured tissues, sensitizes nociceptive dorsal root ganglion (DRG) neurons (nociceptors) through its four EP receptors (EP1-4). Our prior study showed that PGE2 or EP4 agonist stimulates EP4 externalization and this event was not only suppressed by the inhibitor of anterograde export, but also by the recycling inhibitor (St-Jacques and Ma, 2013). These data suggest that EP4 recycling also contributes to agonist-enhanced EP4 surface abundance. In the current study, we tested this hypothesis using antibody-feeding-based internalization assay, recycling assay and FITC-PGE2 binding assay. We observed that selective EP4 agonist 1-hydroxy-PGE1 (1-OH-PGE1) or CAY10850 time- and concentration-dependently increased EP4 internalization in cultured DRG neuron. Internalized EP4 was predominantly localized in the early endosomes and recycling endosomes, but rarely in the late endosomes and lysosomes. These observations were confirmed by FITC-PGE2 binding assay. We further revealed that 1-OH-PGE1 or CAY10850 time- and concentration-dependently increased EP4 recycling. Double exposures to 1-OH-PGE1 induced a greater increase in calcitonin gene-related peptide (CGRP) release than a single exposure or vehicle exposure, an event blocked by pre-treatment with the recycling inhibitor monensin. Our data suggest that EP4 recycling contributes to agonist-induced cell surface abundance and consequently enhanced receptor sensitivity. Facilitating EP4 externalization and recycling is a novel mechanism underlying PGE2-induced nociceptor sensitization.
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Affiliation(s)
- Bruno St-Jacques
- Douglas Mental Health University Institute, McGill University, Montréal, Québec H4H 1R3, Canada
| | - Weiya Ma
- Douglas Mental Health University Institute, McGill University, Montréal, Québec H4H 1R3, Canada; Department of Psychiatry, McGill University, Montréal, Québec H4H 1R3, Canada.
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21
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Zhang H, Wu L, Liu Y, Peng S, Wang W. The antinociceptive effect and mechanism of action of SY0916. Int Immunopharmacol 2016; 32:16-23. [PMID: 26780232 DOI: 10.1016/j.intimp.2016.01.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 12/16/2015] [Accepted: 01/04/2016] [Indexed: 12/16/2022]
Abstract
Pain greatly affects the quality of life of people worldwide. Despite their demonstrated efficacy, currently used opioid drugs and nonsteroidal anti-inflammatory drugs (NSAIDs) are frequently associated with several adverse events. The identification of new therapeutic targets and the development of corresponding analgesics may represent novel approaches for effectively treating pain. SY0916 is a novel compound that was designed and synthesized by the Institute of Materia Medica, Chinese Academy of Medical Sciences. As demonstrated by the hot plate test, tail-flick test and the formalin test, SY0916 exerted strong peripheral and central antinociceptive effects. Western blot, immunohistochemistry and enzyme-linked immunosorbent assay (ELISA) results indicate that SY0916 induces its peripheral antinociceptive effect by suppressing the peripheral activity of inflammatory mediators such as prostaglandin E2 (PGE2), tumor necrosis factor-alpha (TNF-α) and 5-hydroxytryptamine (5-HT). Moreover, its central antinociceptive effect might be mediated by the down-regulation of PGE2 and TNF-α expression and the inhibition of p-p38 and NF-κB pathway signaling in glial cells. These findings demonstrate that SY0916 may serve as a promising analgesic candidate drug.
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Affiliation(s)
- Haijing Zhang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Lianqiu Wu
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
| | - Yang Liu
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Shanying Peng
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Wenjie Wang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
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22
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Zarpelon AC, Rodrigues FC, Lopes AH, Souza GR, Carvalho TT, Pinto LG, Xu D, Ferreira SH, Alves-Filho JC, McInnes IB, Ryffel B, Quesniaux VFJ, Reverchon F, Mortaud S, Menuet A, Liew FY, Cunha FQ, Cunha TM, Verri WA. Spinal cord oligodendrocyte-derived alarmin IL-33 mediates neuropathic pain. FASEB J 2015; 30:54-65. [PMID: 26310268 DOI: 10.1096/fj.14-267146] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Accepted: 08/13/2015] [Indexed: 12/30/2022]
Abstract
Neuropathic pain from injury to the peripheral and CNS represents a major health care issue. We have investigated the role of IL-33/IL-33 receptor (ST2) signaling in experimental models of neuropathic pain in mice. Chronic constriction injury (CCI) of the sciatic nerve induced IL-33 production in the spinal cord. IL-33/citrine reporter mice revealed that oligodendrocytes are the main cells expressing IL-33 within the spinal cord together with a minor expression by neurons, microglia. and astrocytes. CCI-induced mechanical hyperalgesia was reduced in IL-33R (ST2)(-/ -) mice compared with wild-type (WT) mice. Intrathecal treatment of WT mice with soluble IL-33 receptor (IL-33 decoy receptor) markedly reduced CCI-induced hyperalgesia. Consistent with these observations, intrathecal injection of IL-33 enhanced CCI hyperalgesia and induced hyperalgesia in naive mice. IL-33-mediated hyperalgesia during CCI was dependent on a reciprocal relationship with TNF-α and IL-1β. IL-33-induced hyperalgesia was markedly attenuated by inhibitors of PI3K, mammalian target of rapamycin, MAPKs (p38, ERK, and JNK), NF-κB, and also by the inhibitors of glial cells (microglia and astrocytes). Furthermore, targeting these signaling pathways and cells inhibited IL-33-induced TNF-α and IL-1β production in the spinal cord. Our study, therefore, reveals an important role of oligodendrocyte-derived IL-33 in neuropathic pain.
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Affiliation(s)
- Ana C Zarpelon
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Francielle C Rodrigues
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Alexandre H Lopes
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Guilherme R Souza
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Thacyana T Carvalho
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Larissa G Pinto
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Damo Xu
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Sergio H Ferreira
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Jose C Alves-Filho
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Iain B McInnes
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Bernhard Ryffel
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Valérie F J Quesniaux
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Flora Reverchon
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Stéphane Mortaud
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Arnaud Menuet
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Foo Y Liew
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Fernando Q Cunha
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Thiago M Cunha
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
| | - Waldiceu A Verri
- *Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Parana, Brazil; Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, United Kingdom; Unités Mixtes de Recherche 7355, Centre National de la Recherche Scientifique Experimental and Molecular Immunology and Neurogenetics, Orléans, France; Immunologie et Neurogénétique Expérimentales et Moléculaires, University of Orléans, Orléans, France; and School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China
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23
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Di Cesare Mannelli L, Pacini A, Corti F, Boccella S, Luongo L, Esposito E, Cuzzocrea S, Maione S, Calignano A, Ghelardini C. Antineuropathic profile of N-palmitoylethanolamine in a rat model of oxaliplatin-induced neurotoxicity. PLoS One 2015; 10:e0128080. [PMID: 26039098 PMCID: PMC4454493 DOI: 10.1371/journal.pone.0128080] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Accepted: 04/23/2015] [Indexed: 12/16/2022] Open
Abstract
Neurotoxicity is a main side effect of the anticancer drug oxaliplatin. The development of a neuropathic syndrome impairs quality of life and potentially results in chemotherapy dose reductions and/or early discontinuation. In the complex pattern of molecular and morphological alterations induced by oxaliplatin in the nervous system, an important activation of glia has been preclinically evidenced. N-Palmitoylethanolamine (PEA) modulates glial cells and exerts antinociceptive effects in several animal models. In order to improve the therapeutic chances for chemotherapy-dependent neuropathy management, the role of PEA was investigated in a rat model of oxaliplatin-induced neuropathy (2.4 mg kg-1 daily, intraperitoneally). On day 21, a single administration of PEA (30 mg kg-1 i.p.) was able to reduce oxaliplatin-dependent pain induced by mechanical and thermal stimuli. The repeated treatment with PEA (30 mg kg-1 daily i.p. for 21 days, from the first oxaliplatin injection) prevented lowering of pain threshold as well as increased pain on suprathreshold stimulation. Ex vivo histological and molecular analysis of dorsal root ganglia, peripheral nerves and spinal cord highlighted neuroprotective effects and glia-activation prevention induced by PEA repeated administration. The protective effect of PEA resulted in the normalization of the electrophysiological activity of the spinal nociceptive neurons. Finally, PEA did not alter the oxaliplatin-induced mortality of the human colon cancer cell line HT-29. The efficacy of PEA in neuropathic pain control and in preventing nervous tissue alteration candidates this endogenous compound as disease modifying agent. These characteristics, joined to the safety profile, suggest the usefulness of PEA in chemotherapy-induced neuropathy.
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Affiliation(s)
- Lorenzo Di Cesare Mannelli
- Department of Neuroscience, Psychology, Drug Research and Child Health—Neurofarba—Pharmacology and Toxicology Section, University of Florence, Florence, Italy
- * E-mail:
| | - Alessandra Pacini
- Department of Experimental and Clinical Medicine—DMSC—Anatomy and Histology Section, University of Florence, Florence, Italy
| | - Francesca Corti
- Department of Neuroscience, Psychology, Drug Research and Child Health—Neurofarba—Pharmacology and Toxicology Section, University of Florence, Florence, Italy
| | - Serena Boccella
- Department of Experimental Medicine, Division of Pharmacology, The Second University of Naples, Naples, Italy
| | - Livio Luongo
- Department of Experimental Medicine, Division of Pharmacology, The Second University of Naples, Naples, Italy
| | - Emanuela Esposito
- Department of Biological and Environmental Sciences, University of Messina, Messina, Italy
- Young Against Pain (YAP) group, Italy
| | - Salvatore Cuzzocrea
- Department of Biological and Environmental Sciences, University of Messina, Messina, Italy
| | - Sabatino Maione
- Department of Experimental Medicine, Division of Pharmacology, The Second University of Naples, Naples, Italy
| | - Antonio Calignano
- Department of Pharmacy, University of Naples “Federico II”, Naples, Italy
| | - Carla Ghelardini
- Department of Neuroscience, Psychology, Drug Research and Child Health—Neurofarba—Pharmacology and Toxicology Section, University of Florence, Florence, Italy
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St-Jacques B, Ma W. Peripheral prostaglandin E2 prolongs the sensitization of nociceptive dorsal root ganglion neurons possibly by facilitating the synthesis and anterograde axonal trafficking of EP4 receptors. Exp Neurol 2014; 261:354-66. [DOI: 10.1016/j.expneurol.2014.05.028] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Revised: 05/09/2014] [Accepted: 05/30/2014] [Indexed: 12/21/2022]
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Lipids in the nervous system: from biochemistry and molecular biology to patho-physiology. Biochim Biophys Acta Mol Cell Biol Lipids 2014; 1851:51-60. [PMID: 25150974 DOI: 10.1016/j.bbalip.2014.08.011] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 08/08/2014] [Accepted: 08/12/2014] [Indexed: 12/16/2022]
Abstract
Lipids in the nervous system accomplish a great number of key functions, from synaptogenesis to impulse conduction, and more. Most of the lipids of the nervous system are localized in myelin sheaths. It has long been known that myelin structure and brain homeostasis rely on specific lipid-protein interactions and on specific cell-to-cell signaling. In more recent years, the growing advances in large-scale technologies and genetically modified animal models have provided valuable insights into the role of lipids in the nervous system. Key findings recently emerged in these areas are here summarized. In addition, we briefly discuss how this new knowledge can open novel approaches for the treatment of diseases associated with alteration of lipid metabolism/homeostasis in the nervous system. This article is part of a Special Issue entitled Linking transcription to physiology in lipidomics.
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26
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Ma W, Quirion R. Targeting cell surface trafficking of pain-facilitating receptors to treat chronic pain conditions. Expert Opin Ther Targets 2014; 18:459-72. [DOI: 10.1517/14728222.2014.887683] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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27
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Nazıroğlu M, Çiğ B, Özgül C. Modulation of oxidative stress and Ca(2+) mobilization through TRPM2 channels in rat dorsal root ganglion neuron by Hypericum perforatum. Neuroscience 2014; 263:27-35. [PMID: 24434769 DOI: 10.1016/j.neuroscience.2014.01.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Revised: 01/03/2014] [Accepted: 01/05/2014] [Indexed: 11/24/2022]
Abstract
A main component of St. John's Wort (Hypericum perforatum, HP) is hyperforin which has antioxidant properties in dorsal root ganglion (DRG) neurons, due to its ability to modulate NADPH oxidase and protein kinase C. Recent reports indicate that oxidative stress through NADPH oxidase activates TRPM2 channels. HP may be a useful treatment for Ca(2+) entry and oxidative stress through modulation of TRPM2 channels in the DRG. We aimed to investigate the protective role of HP on Ca(2+) entry and oxidative stress through TRPM2 channels in DRG neurons of rats. The native rat DRG neurons were used in whole-cell patch-clamp, Fura-2 and antioxidant experiments. Appropriate, nontoxic concentrations and incubation times for HP were determined in the DRG neurons by assessing cell viability. The H2O2-induced TRPM2 currents were inhibited by 2-aminoethyl diphenylborinate (2-APB) and N-(p-amylcinnamoyl)anthranilic acid (ACA). TRPM2 current densities and cytosolic free Ca(2+) concentration in the neurons were also reduced by HP (2 and 24h). In Fura-2 experiments, cytosolic Ca(2+) mobilization was reduced by voltage-gated calcium channel blockers (verapamil+diltiazem, V+D) and HP. Glutathione peroxidase activity and GSH values in the DRG were high in HP, 2-APB and V+D groups although lipid peroxidation level was low in the groups. In conclusion, we observed a protective role for HP on Ca(2+) entry through a TRPM2 channel in the DRG neurons. Since over-production of oxidative stress and Ca(2+) entry are implicated in the pathophysiology of neuropathic pain and neuronal inflammation, our findings may be relevant to the etiology and treatment of neuropathology in DRG neurons.
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Affiliation(s)
- M Nazıroğlu
- Neuroscience Research Center, Süleyman Demirel University, Isparta, Turkey; Department of Biophysics, Faculty of Medicine, Süleyman Demirel University, Isparta, Turkey.
| | - B Çiğ
- Department of Biophysics, Faculty of Medicine, Süleyman Demirel University, Isparta, Turkey
| | - C Özgül
- Restorative and Regenerative Medicine Research Center, Istanbul Medipol University, Istanbul, Turkey
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28
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Pires LR, Guarino V, Oliveira MJ, Ribeiro CC, Barbosa MA, Ambrosio L, Pêgo AP. Ibuprofen-loaded poly(trimethylene carbonate-co-ε-caprolactone) electrospun fibres for nerve regeneration. J Tissue Eng Regen Med 2013; 10:E154-66. [DOI: 10.1002/term.1792] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2012] [Revised: 05/01/2013] [Accepted: 05/27/2013] [Indexed: 12/19/2022]
Affiliation(s)
- Liliana R. Pires
- INEB - Instituto de Engenharia Biomédica, NEWTherapies Group; Universidade do Porto; Porto Portugal
- Universidade do Porto; Faculdade de Engenharia; Porto Portugal
| | - Vincenzo Guarino
- Institute of Composite and Biomedical Materials; National Research Council; Naples Italy
| | - Maria J. Oliveira
- INEB - Instituto de Engenharia Biomédica, NEWTherapies Group; Universidade do Porto; Porto Portugal
- Departamento de Patologia e Oncologia, Faculdade de Medicina; Universidade do Porto; Porto Portugal
| | - Cristina C. Ribeiro
- INEB - Instituto de Engenharia Biomédica, NEWTherapies Group; Universidade do Porto; Porto Portugal
- ISEP - Instituto Superior de Engenharia do Porto; Instituto Politécnico do Porto; Porto Portugal
| | - Mário A Barbosa
- INEB - Instituto de Engenharia Biomédica, NEWTherapies Group; Universidade do Porto; Porto Portugal
- Universidade do Porto; Faculdade de Engenharia; Porto Portugal
- Universidade do Porto; Instituto de Ciências Biomédicas Abel Salazar; Porto Portugal
| | - Luigi Ambrosio
- Institute of Composite and Biomedical Materials; National Research Council; Naples Italy
| | - Ana Paula Pêgo
- INEB - Instituto de Engenharia Biomédica, NEWTherapies Group; Universidade do Porto; Porto Portugal
- Universidade do Porto; Faculdade de Engenharia; Porto Portugal
- Universidade do Porto; Instituto de Ciências Biomédicas Abel Salazar; Porto Portugal
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29
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Coronel MF, Labombarda F, De Nicola AF, González SL. Progesterone reduces the expression of spinal cyclooxygenase-2 and inducible nitric oxide synthase and prevents allodynia in a rat model of central neuropathic pain. Eur J Pain 2013; 18:348-59. [PMID: 23929706 DOI: 10.1002/j.1532-2149.2013.00376.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/26/2013] [Indexed: 01/09/2023]
Abstract
BACKGROUND Spinal cord injury (SCI) results in the development of chronic pain that is refractory to conventional treatment. Progesterone, a neuroprotective steroid, may offer a promising perspective in pain modulation after central injury. Here, we explore the impact of progesterone administration on the post-injury inflammatory cascade involving the enzymes cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS) at the spinal cord level. We also analyse pain behaviours, the profile of glial cell activation, and IκB-α mRNA levels, as an index of NF-κB transactivation. METHODS We used biochemical, immunohistochemical and molecular techniques, as well as behavioural studies, to investigate the effects of progesterone in a well-characterized model of central neuropathic pain. RESULTS Injured animals receiving progesterone presented reduced mRNA levels of the proinflammatory enzymes, as well as decreased COX-2 activity and nitrite levels, as compared to vehicle-treated injured rats. Further, animals receiving the steroid exhibited lower levels of IκB-α mRNA, suggesting decreased NF-κB transactivation. Progesterone administration also attenuated the injury-induced increase in the number of glial fibrillary acidic protein and OX-42 positive cells both at early and late time points after injury, and prevented the development of mechanical and thermal allodynia. Further, when injured rats received early progesterone administration for a critical period of time after injury, they did not display allodynic behaviours even after the treatment had stopped. CONCLUSIONS Our results suggest that progesterone, by modulating early neuroinflammatory events triggered after SCI, may represent a useful strategy to prevent the development of central chronic pain.
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Affiliation(s)
- M F Coronel
- Laboratorio de Nocicepción y Dolor Neuropático, Instituto de Biología y Medicina Experimental, CONICET, Buenos Aires, Argentina
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30
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Jongen JLM, Hans G, Benzon HT, Huygen F, Hartrick CT. Neuropathic Pain and Pharmacological Treatment. Pain Pract 2013; 14:283-95. [DOI: 10.1111/papr.12085] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2012] [Accepted: 04/26/2013] [Indexed: 12/27/2022]
Affiliation(s)
- Joost L. M. Jongen
- Department of Neurology; Erasmus MC; Rotterdam The Netherlands
- Department of Anesthesiology; Erasmus MC; Rotterdam The Netherlands
| | - Guy Hans
- Department of Anesthesiology and Multidisciplinary Pain Center; Antwerp University Hospital; Edegem Belgium
| | - Honorio T. Benzon
- Department of Anesthesiology; Northwestern University Feinberg School of Medicine; Chicago Illinois
| | - Frank Huygen
- Department of Anesthesiology and Pain Medicine; Erasmus MC; Rotterdam The Netherlands
| | - Craig T. Hartrick
- Departments of Biomedical Sciences and Anesthesiology; Oakland University William Beaumont School of Medicine; Rochester Michigan U.S.A
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31
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Ma X, You X, Zeng Y, He J, Liu L, Deng Z, Jiang C, Wu H, Zhu C, Yu M, Wu Y. Mycoplasma fermentans MALP-2 induces heme oxygenase-1 expression via mitogen-activated protein kinases and Nrf2 pathways to modulate cyclooxygenase 2 expression in human monocytes. CLINICAL AND VACCINE IMMUNOLOGY : CVI 2013; 20:827-34. [PMID: 23536693 PMCID: PMC3675981 DOI: 10.1128/cvi.00716-12] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Accepted: 03/21/2013] [Indexed: 02/07/2023]
Abstract
Heme oxygenase-1 (HO-1) is a stress-inducible rate-limiting enzyme in heme degradation that confers cytoprotection against oxidative injury and performs a vital function in the maintenance of cell hemostasis. Increasing numbers of reports have indicated that mycoplasma-derived membrane lipoproteins/lipopeptides, such as macrophage-activating lipopeptide-2 (MALP-2), function as agents that stimulate the immune system by producing various inflammatory mediators, such as cytokines and cyclooxygenase 2 (COX-2), which play roles in the pathogenesis of inflammatory responses during mycoplasma infection. Here, we report that MALP-2 induced HO-1 mRNA and protein expression and upregulated HO-1 enzyme activity in THP-1 cells. Specific inhibitors of mitogen-activated protein kinases (MAPKs), SB203580, PD98059, and SP600125, significantly abolished HO-1 expression. In addition, MALP-2 also induced NF-E2-related factor 2 (Nrf2) translocation, and the silencing of Nrf2 expression in THP-1 cells decreased the levels of MALP-2-mediated HO-1 expression. Furthermore, COX-2 protein expression levels were upregulated in THP-1 cells in response to MALP-2, and transfection with small interfering RNAs of HO-1 significantly increased COX-2 accumulation. These results demonstrate that MALP-2 induces HO-1 expression via MAPKs and Nrf2 pathways and, furthermore, that MALP-2-induced COX-2 expression was modulated by HO-1 in THP-1 cells.
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Affiliation(s)
- Xiaohua Ma
- Institution of Pathogenic Biology, Medical College, University of South China, Hengyang, China
| | - Xiaoxing You
- Institution of Pathogenic Biology, Medical College, University of South China, Hengyang, China
| | - Yanhua Zeng
- Institution of Pathogenic Biology, Medical College, University of South China, Hengyang, China
| | - Jun He
- Institution of Pathogenic Biology, Medical College, University of South China, Hengyang, China
- Department of Clinical Laboratory, The Affiliated Nanhua Hospital of University of South China, Hengyang, China
| | - Liangzhuan Liu
- Institution of Pathogenic Biology, Medical College, University of South China, Hengyang, China
| | - Zhongliang Deng
- Institution of Pathogenic Biology, Medical College, University of South China, Hengyang, China
| | - Chuanhao Jiang
- Institution of Pathogenic Biology, Medical College, University of South China, Hengyang, China
| | - Haiying Wu
- Institution of Pathogenic Biology, Medical College, University of South China, Hengyang, China
| | - Cuiming Zhu
- Institution of Pathogenic Biology, Medical College, University of South China, Hengyang, China
| | - Minjun Yu
- Institution of Pathogenic Biology, Medical College, University of South China, Hengyang, China
| | - Yimou Wu
- Institution of Pathogenic Biology, Medical College, University of South China, Hengyang, China
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Lee BS, Jun IG, Kim SH, Park JY. Intrathecal gabapentin increases interleukin-10 expression and inhibits pro-inflammatory cytokine in a rat model of neuropathic pain. J Korean Med Sci 2013; 28:308-14. [PMID: 23399960 PMCID: PMC3565145 DOI: 10.3346/jkms.2013.28.2.308] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2012] [Accepted: 12/26/2012] [Indexed: 01/12/2023] Open
Abstract
We examined the possible anti-inflammatory mechanisms of gabapentin in the attenuation of neuropathic pain and the interaction between the anti-allodynic effects of gabapentin and interleukin-10 (IL-10) expression in a rat model of neuropathic pain. The anti-allodynic effect of intrathecal gabapentin was examined over a 7-day period. The anti-allodynic effects of IL-10 was measured, and the effects of anti-IL-10 antibody on the gabapentin were assessed. On day 7, the concentrations of pro-inflammatory cytokines and IL-10 were measured. Gabapentin produced an anti-allodynic effect over the 7-day period, reducing the expression of pro-inflammatory cytokines but increasing the expression of IL-10 (TNF-α, 316.0 ± 69.7 pg/mL vs 88.8 ± 24.4 pg/mL; IL-1β, 1,212.9 ± 104.5 vs 577.4 ± 97.1 pg/mL; IL-6, 254.0 ± 64.8 pg/mL vs 125.5 ± 44.1 pg/mL; IL-10, 532.1 ± 78.7 pg/mL vs 918.9 ± 63.1 pg/mL). The suppressive effect of gabapentin on pro-inflammatory cytokine expression was partially blocked by the anti-IL-10 antibody. Expression of pro-inflammatory cytokines was significantly attenuated by daily injections of IL-10. The anti-allodynic effects of gabapentin may be caused by upregulation of IL-10 expression in the spinal cord, which leads to inhibition of the expression of pro-inflammatory cytokines in the spinal cords.
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Affiliation(s)
- Byung-Sang Lee
- Department of Anesthesiology and Pain Medicine, CHA Medical Center, CHA University, Gumi, Korea
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St-Jacques B, Ma W. Prostaglandin E2/EP4 signalling facilitates EP4 receptor externalization in primary sensory neurons in vitro and in vivo. Pain 2013; 154:313-323. [DOI: 10.1016/j.pain.2012.11.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2012] [Revised: 08/28/2012] [Accepted: 11/14/2012] [Indexed: 12/21/2022]
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