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Ma SZ, Dong S, Zhou ZY, Ji XY, Zhang YY, Wang XQ, Zhang B. The protective role of Cordyceps cicadae and its active ingredient myriocin against sodium iodate-induced age-related macular degeneration via an anti-necroptotic TNF-RIPK1/3 pathway. JOURNAL OF ETHNOPHARMACOLOGY 2024; 334:118565. [PMID: 39002821 DOI: 10.1016/j.jep.2024.118565] [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: 04/23/2024] [Revised: 06/05/2024] [Accepted: 07/09/2024] [Indexed: 07/15/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Cordyceps cicadae (C.cicadae), named "Chan Hua", an anamorph of Isaria cicadae Miquel, is an entomogenous complex formed by fungi parasitizing on the larvae of cicadas and belongs to the Claviciptaceae family and the genus Codyceps, which traditionally holds a significant place in Chinese ethnopharmacology, specifically for eye clarity and as a remedy for age-related ocular conditions. The underlying mechanisms contributing to its eyesight enhancement and potential effectiveness against Age-related macular degeneration (AMD) remain unexplored. AIM OF THE STUDY This study aims to elucidate the protective role of C.cicadae and its active ingredient, Myriocin (Myr), against AMD. MATERIALS AND METHODS A chemical inducer was employed to make retinal pigment epithelium (RPE) damage in vitro and in vivo. The key ingredients of C.cicadae and their related mechanisms for anti-AMD were studied through bioinformatic analysis and molecular biological approaches. RESULTS Myr was identified through high-performance liquid chromatography (HPLC) as an active ingredient in C.cicadae, and demonstrated a protective effect on RPE cells, reducing the structural damage and cell death induced by sodium iodate (SI). Further, Myr reduced eyelid secretions in AMD mice and restored their retinal structure and function. The differentially expressed genes (DEGs) in Myr treatment are primarily associated with TNF and Necroptosis signaling pathways. Molecular docking indicated a strong affinity between TNF and Myr. Myr inhibited the TNF signaling pathway thereby reducing the expression of inflammatory factors in ARPE-19 cells. Additionally, Myr had consistent action with the necroptosis inhibitor Necrostatin-1 (Nec-1), inhibited the RIPK1/RIPK3/MLKL pathway thereby protecting ARPE-19 cells. CONCLUSION The findings present Myr, as a potent protector against SI-induced AMD, predominantly through modulation of the TNF-RIPK1/RIPK3/MLKL signaling pathway, offering the insights of therapeutic C.cicadae as viable candidates for AMD treatment.
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Affiliation(s)
- Shao Zhuang Ma
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu, 610106, PR China; Key Laboratory of Xinjiang Phytomedicine Resources and Utilization, Ministry of Education, School of Pharmacy, Shihezi University, Shihezi, 832002, PR China.
| | - Shi Dong
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu, 610106, PR China; Key Laboratory of Xinjiang Phytomedicine Resources and Utilization, Ministry of Education, School of Pharmacy, Shihezi University, Shihezi, 832002, PR China.
| | - Zong Yuan Zhou
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu, 610106, PR China.
| | - Xin Ye Ji
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu, 610106, PR China; Key Laboratory of Xinjiang Phytomedicine Resources and Utilization, Ministry of Education, School of Pharmacy, Shihezi University, Shihezi, 832002, PR China.
| | - Yan Yuan Zhang
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu, 610106, PR China; Key Laboratory of Xinjiang Phytomedicine Resources and Utilization, Ministry of Education, School of Pharmacy, Shihezi University, Shihezi, 832002, PR China.
| | - Xiao Qin Wang
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu, 610106, PR China.
| | - Bo Zhang
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu, 610106, PR China; Key Laboratory of Xinjiang Phytomedicine Resources and Utilization, Ministry of Education, School of Pharmacy, Shihezi University, Shihezi, 832002, PR China.
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Yang Y, Xia C, Xu Z, Hu Y, Huang M, Li D, Zheng Y, Li Y, Xu F, Wang J. rTMS applied to the PFC relieves neuropathic pain and modulates neuroinflammation in CCI rats. Neuroscience 2024; 554:137-145. [PMID: 38992566 DOI: 10.1016/j.neuroscience.2024.07.004] [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: 01/16/2024] [Revised: 07/02/2024] [Accepted: 07/03/2024] [Indexed: 07/13/2024]
Abstract
The study aimed to assess the analgesic effect of 10 Hz repetitive transcranial magnetic stimulation (rTMS) targeted to the prefrontal cortex (PFC) region on neuropathic pain (NPP) in rats with chronic constriction injury (CCI) of the sciatic nerve, and to investigate the possible underlying mechanism. Rats were randomly divided into three groups: sham operation, CCI, and rTMS. In the latter group, rTMS was applied to the left PFC. Von Frey fibres were used to measure the paw withdrawal mechanical threshold (PWMT). At the end of the treatment, immunofluorescence and western blotting were applied to detect the expression of M1 and M2 polarisation markers in microglia in the left PFC and sciatic nerve. ELISA was further used to detect the concentrations of inflammation-related cytokines. The results showed that CCI caused NPP in rats, reduced the pain threshold, promoted microglial polarisation to the M1 phenotype, and increased the secretion of pro-inflammatory and anti-inflammatory factors. Moreover, 10 Hz rTMS to the PFC was shown to improve NPP induced by CCI, induce microglial polarisation to M2, reduce the secretion of pro-inflammatory factors, and further increase the secretion of anti-inflammatory factors. Our data suggest that 10 Hz rTMS can alleviate CCI-induced neuropathic pain, while the underlying mechanism may potentially be related to the regulation of microglial M1-to-M2-type polarisation to regulate neuroinflammation.
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Affiliation(s)
- Yue Yang
- Department of Rehabilitation, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, PR China
| | - Cuihong Xia
- Department of Rehabilitation, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, PR China
| | - Zhangyu Xu
- Department of Rehabilitation, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, PR China; Department of Rehabilitation Medicine, Southwest Medical University, Luzhou, Sichuan, PR China; Rehabilitation Medicine and Engineering Key Laboratory of Luzhou, Luzhou, Sichuan, PR China
| | - Yue Hu
- Department of Rehabilitation, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, PR China; Department of Rehabilitation Medicine, Southwest Medical University, Luzhou, Sichuan, PR China; Rehabilitation Medicine and Engineering Key Laboratory of Luzhou, Luzhou, Sichuan, PR China
| | - Maomao Huang
- Department of Rehabilitation, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, PR China; Department of Rehabilitation Medicine, Southwest Medical University, Luzhou, Sichuan, PR China; Rehabilitation Medicine and Engineering Key Laboratory of Luzhou, Luzhou, Sichuan, PR China
| | - Dan Li
- Department of Rehabilitation, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, PR China; Department of Rehabilitation Medicine, Southwest Medical University, Luzhou, Sichuan, PR China; Rehabilitation Medicine and Engineering Key Laboratory of Luzhou, Luzhou, Sichuan, PR China
| | - Yadan Zheng
- Department of Rehabilitation, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, PR China
| | - Yang Li
- Department of Rehabilitation, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, PR China
| | - Fangyuan Xu
- Department of Rehabilitation, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, PR China; Department of Rehabilitation Medicine, Southwest Medical University, Luzhou, Sichuan, PR China; Rehabilitation Medicine and Engineering Key Laboratory of Luzhou, Luzhou, Sichuan, PR China.
| | - Jianxiong Wang
- Department of Rehabilitation, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, PR China; Department of Rehabilitation Medicine, Southwest Medical University, Luzhou, Sichuan, PR China; Rehabilitation Medicine and Engineering Key Laboratory of Luzhou, Luzhou, Sichuan, PR China.
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Guo S, Zhang Y, Lian J, Su C, Wang H. The role of hydrogen sulfide in the regulation of necroptosis across various pathological processes. Mol Cell Biochem 2024:10.1007/s11010-024-05090-1. [PMID: 39138751 DOI: 10.1007/s11010-024-05090-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Accepted: 08/05/2024] [Indexed: 08/15/2024]
Abstract
Necroptosis is a programmed cell death form executed by receptor-interacting protein kinase (RIPK) 1, RIPK3 and mixed lineage kinase domain-like protein (MLKL), which assemble into an oligomer called necrosome. Accumulating evidence reveals that necroptosis participates in many types of pathological processes. Hence, clarifying the mechanism of necroptosis in pathological processes is particularly important for the prevention and treatment of various diseases. For over 300 years, hydrogen sulfide (H2S) has been widely known in the scientific community as a toxic and foul-smelling gas. However, after discovering the important physiological and pathological functions of H2S, human understanding of this small molecule changed, believing that H2S is the third gas signaling molecule after carbon monoxide (CO) and nitric oxide (NO). H2S plays an important role in various diseases, but the related mechanisms are not yet fully understood. In recent years, more and more studies have shown that H2S regulation of necroptosis is involved in various pathological processes. Herein, we focus on the recent progress on the role of H2S regulation of necroptosis in different pathological processes and profoundly analyze the related mechanisms.
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Affiliation(s)
- Shiyun Guo
- Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, 475004, Henan, China
| | - Yanting Zhang
- Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, 475004, Henan, China
| | - Jingwen Lian
- Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, 475004, Henan, China
| | - Chunqi Su
- Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, 475004, Henan, China
| | - Honggang Wang
- Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, 475004, Henan, China.
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Li Y, Jin J, Kang X, Feng Z. Identifying and Evaluating Biological Markers of Postherpetic Neuralgia: A Comprehensive Review. Pain Ther 2024:10.1007/s40122-024-00640-3. [PMID: 39126594 DOI: 10.1007/s40122-024-00640-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Accepted: 07/11/2024] [Indexed: 08/12/2024] Open
Abstract
Postherpetic neuralgia (PHN) manifests as persistent chronic pain that emerges after a herpes zoster outbreak and greatly diminishes quality of life. Unfortunately, its treatment efficacy has remained elusive, with many therapeutic efforts yielding less than satisfactory results. The research to discern risk factors predicting the onset, trajectory, and prognosis of PHN has been extensive. However, these risk factors often present as nonspecific and diverse, indicating the need for more reliable, measurable, and objective detection methods. The exploration of potential biological markers, including hematological indices, pathological insights, and supportive tests, is increasing. This review highlights potential biomarkers that are instrumental for the diagnosis, management, and prognosis of PHN while also delving deeper into its genesis. Drawing from prior research, aspects such as immune responsiveness, neuronal injury, genetic makeup, cellular metabolism, and pain signal modulation have emerged as prospective biomarkers. The immune spectrum spans various cell subtypes, with an emphasis on T cells, interferons, interleukins, and other related cytokines. Studies on nerve injury are directed toward pain-related proteins and the density and health of epidermal nerve fibers. On the genetic and metabolic fronts, the focus lies in the detection of predisposition genes, atypical protein manifestations, and energy-processing dynamics, with a keen interest in vitamin metabolism. Tools such as functional magnetic resonance imaging, electromyography, and infrared imaging have come to the forefront in the pain signaling domain. This review compiles the evidence, potential clinical implications, and challenges associated with these promising biomarkers, paving the way for innovative strategies for predicting, diagnosing, and addressing PHN.
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Affiliation(s)
- Yunze Li
- Department of Pain Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, No. 79 Qingchun Road, Hangzhou, 310003, Zhejiang, China
| | - Jiali Jin
- Department of Pain Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, No. 79 Qingchun Road, Hangzhou, 310003, Zhejiang, China
| | - Xianhui Kang
- Department of Anesthesiology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Zhiying Feng
- Department of Pain Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, No. 79 Qingchun Road, Hangzhou, 310003, Zhejiang, China.
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Yan X, Yan Y, Liu J, Jing Y, Hao P, Chen X, Li X. Necrostatin-1 protects corneal epithelial cells by inhibiting the RIPK1/RIPK3/MLKL cascade in a benzalkonium chloride-induced model of necroptosis. Exp Eye Res 2024; 247:110030. [PMID: 39127236 DOI: 10.1016/j.exer.2024.110030] [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: 04/26/2024] [Revised: 07/13/2024] [Accepted: 08/07/2024] [Indexed: 08/12/2024]
Abstract
PURPOSE Benzalkonium chloride (BAC) is commonly used as a preservative in ophthalmic medications, despite its potential to induce chemical injury. Extensive research has demonstrated that BAC can lead to adverse effects, including injuries to the ocular surface. Our study aimed to elucidate the underlying mechanism of necroptosis induced by BAC. METHODS Human corneal epithelial (HCE) cells and mouse corneas were subjected to chemical injury, and the necrostatin-1 (Nec1) group was compared to the dimethylsulfoxide (DMSO) group. The extent of damage to HCE cells was assessed using CCK-8 and flow cytometry. Hematoxylin and eosin staining, as well as fluorescein sodium staining, were used to detect and characterize corneal injury. The activation of inflammatory cytokines and necroptosis-related proteins and genes was evaluated using Western blotting, immunofluorescence staining, and quantitative RT‒PCR. RESULTS In our study, the induction of necroptosis by a hypertonic solution was not observed. However, necroptosis was observed in HCE cells exposed to NaOH and BAC, which activated the receptor-interacting protein kinase 1 (RIPK1) - receptor-interacting protein kinase 3 (RIPK3) - mixed lineage kinase domain-like protein (MLKL) signaling pathway. In mouse corneal tissues, BAC could induce necroptosis and inflammation. The administration of Nec1 mitigated the inflammatory response and ocular surface damage caused by BAC-induced necroptosis in our experimental models. Furthermore, our in vivo experiments revealed that the severity of necroptosis was greater in the 3-day group than in the 7-day group. CONCLUSIONS Necroptosis plays a role in the pathological development of ocular surface injury caused by exposure to BAC. Furthermore, our study demonstrated that the administration of Nec1 could mitigate the pathological effects of necroptosis induced by BAC in clinical settings.
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Affiliation(s)
- Xinlin Yan
- School of Medicine, Nankai University, Tianjin 300071, China; Nankai University Affiliated Eye Hospital, Tianjin 300020, China; Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin Eye Institute, Tianjin Eye Hospital, Tianjin 300020, China
| | - Yarong Yan
- Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin Eye Institute, Tianjin Eye Hospital, Tianjin 300020, China; Clinical College of Ophthalmology, Tianjin Medical University, Tianjin 300020, China
| | - Jinghua Liu
- School of Medicine, Nankai University, Tianjin 300071, China; Nankai University Affiliated Eye Hospital, Tianjin 300020, China; Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin Eye Institute, Tianjin Eye Hospital, Tianjin 300020, China
| | - Yapeng Jing
- School of Medicine, Nankai University, Tianjin 300071, China; Nankai University Affiliated Eye Hospital, Tianjin 300020, China; Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin Eye Institute, Tianjin Eye Hospital, Tianjin 300020, China
| | - Peng Hao
- Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin Eye Institute, Tianjin Eye Hospital, Tianjin 300020, China
| | - Xi Chen
- Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin Eye Institute, Tianjin Eye Hospital, Tianjin 300020, China
| | - Xuan Li
- School of Medicine, Nankai University, Tianjin 300071, China; Nankai University Affiliated Eye Hospital, Tianjin 300020, China; Clinical College of Ophthalmology, Tianjin Medical University, Tianjin 300020, China.
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Yang J, Zhao H, Qu S. Therapeutic potential of fucoidan in central nervous system disorders: A systematic review. Int J Biol Macromol 2024; 277:134397. [PMID: 39097066 DOI: 10.1016/j.ijbiomac.2024.134397] [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: 05/15/2024] [Revised: 07/25/2024] [Accepted: 07/30/2024] [Indexed: 08/05/2024]
Abstract
Central nervous system (CNS) disorders have a complicated pathogenesis, and to date, no single mechanism can fully explain them. Most drugs used for CNS disorders primarily aim to manage symptoms and delay disease progression, and none have demonstrated any pathological reversal. Fucoidan is a safe, sulfated polysaccharide from seaweed that exhibits multiple pharmacological effects, and it is anticipated to be a novel treatment for CNS disorders. To assess the possible clinical uses of fucoidan, this review aims to provide an overview of its neuroprotective mechanism in both in vivo and in vitro CNS disease models, as well as its pharmacokinetics and safety. We included 39 articles on the pharmacology of fucoidan in CNS disorders. In vitro and in vivo experiments demonstrate that fucoidan has important roles in regulating lipid metabolism, enhancing the cholinergic system, maintaining the functional integrity of the blood-brain barrier and mitochondria, inhibiting inflammation, and attenuating oxidative stress and apoptosis, highlighting its potential for CNS disease treatment. Fucoidan has a protective effect against CNS disorders. With ongoing research on fucoidan, it is expected that a natural, highly effective, less toxic, and highly potent fucoidan-based drug or nutritional supplement targeting CNS diseases will be developed.
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Affiliation(s)
- Jing Yang
- Department of Otolaryngology Head and Neck Surgery, Shengjing Hospital of China Medical University, 36 Sanhao Street, Heping District, 110004 Shenyang, Liaoning, PR China.
| | - He Zhao
- Department of Otolaryngology Head and Neck Surgery, Shengjing Hospital of China Medical University, 36 Sanhao Street, Heping District, 110004 Shenyang, Liaoning, PR China.
| | - Shengtao Qu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, 36 Sanhao Street, Heping District, 110004 Shenyang, Liaoning, PR China.
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Jing B, Chen ZN, Si WM, Zhao JJ, Zhao GP, Zhang D. (+)-Catechin Alleviates CCI-Induced Neuropathic Pain in Rats by Modulating the IL34/CSFIR Axis and Attenuating the Schwann Cell-Macrophage Cascade Response in the DRG. Mol Neurobiol 2024; 61:5027-5041. [PMID: 38159197 DOI: 10.1007/s12035-023-03876-w] [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: 09/14/2023] [Accepted: 11/30/2023] [Indexed: 01/03/2024]
Abstract
The aim of this study was to investigate the potential therapeutic applications of (+)-catechin in the treatment of neuropathic pain. In vivo study, 32 SD rats were randomly divided into four groups: sham group, chronic constriction injury (CCI) group, CCI + ibuprofen group and CCI+ (+)-catechin group. They were subjected to behavioural tests, ELISA, immunohistochemistry and Western blotting. The mechanisms involved were investigated using specific inhibitors in cell experiments. Results of in vivo experiments showed that (+)-catechin could reduce the cold sensitivity pain in a rat model of CCI; ELISA and immunohistochemistry results showed that (+)-catechin could decrease the levels of IL-8, IL-6, TNF-α, CCL2 and CCL5 in serum and the expression levels of nNOS, COX2, IL6, TNF-α, IBA-1 and CSF1R in DRG of CCI rats. Finally, western blot confirmed that (+)-catechin could diminish the levels of IL-34/CSF1R/JAK2/STAT3 signalling pathway in DRG of CCI rats. In vitro studies showed that (+)-catechin reduced IL-34 secretion in LPS-induced RSC96 cells. Meanwhile, (+)-catechin administration in LPS-induced Schwann cell-conditioned medium (L-CM) significantly inhibited the proliferation and migration of RAW264.7 cells; in addition, L-CM+(+)-catechin reduced the activation of the CSF1R/JAK2/STAT3 signalling pathway. (+)-Catechin attenuated the Schwann cell-macrophage cascade response in the DRG by modulating the IL34/CSFIR axis and inhibiting activation of the JAK2/STAT3 pathway, thereby attenuating CCI-induced neuropathic pain in rats.
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Affiliation(s)
- Bei Jing
- College of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Zhen-Ni Chen
- College of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Wai-Mei Si
- College of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Jia-Ji Zhao
- Chemistry & Chemical Engineering, Guangdong Pharmaceutical University, Guangzhou, China.
| | - Guo-Ping Zhao
- College of Traditional Chinese Medicine, Jinan University, Guangzhou, China.
| | - Di Zhang
- College of Traditional Chinese Medicine, Jinan University, Guangzhou, China.
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Zhang T, Zhong Y, Shi Y, Feng C, Xu L, Chen Z, Sun X, Zhao Y, Sun X. Multi-omics reveals that 5-O-methylvisammioside prevention acute liver injury in mice by regulating the TNF/MAPK/NF-κB/arachidonic acid pathway. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 128:155550. [PMID: 38522313 DOI: 10.1016/j.phymed.2024.155550] [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: 12/17/2023] [Revised: 03/09/2024] [Accepted: 03/18/2024] [Indexed: 03/26/2024]
Abstract
BACKGROUND The pathogenesis of acute liver injury (ALI) has been a pressing issue in the medical scientific community. We previously found that 5-O-methylvisammioside (MeV) from Saposhnikovia divaricata (Turcz.) Schischk has excellent anti-inflammatory properties. However, the mechanism by which MeV protects against ALI still needs to be deeply investigated. PURPOSE In the present study, we established an acetaminophen (APAP) -induced ALI mouse model and pre-protected the mice with MeV. METHODS & RESULTS Our findings indicate that MeV (5 and 10 mg/kg) lowered the blood levels of alanine aminotransferase and aspartate aminotransferase and reduced the infiltration of inflammatory cells in the liver. MeV initially showed an inhibitory effect on ALI. We then analyzed the molecular mechanisms underlying the effects of MeV by transcriptomic and metabolomic analyzes. Through transcriptomic analysis, we identified 4675 differentially expressed genes between the APAP+MeV group and the APAP-induced ALI group, which were mainly enriched in the MAPK pathway, the TNF pathway, and the NF-κB pathway. Through metabolomic analysis, we found that 249 metabolites in the liver were differentially regulated between the APAP+MeV group and the APAP- induced ALI group, which were mainly enriched in the arachidonic acid pathway. The mRNA expression levels of key genes (encoding TNF-α, p38, AP-1, RelB, IL-1β, and Ptges), as determined by RT-PCR analysis, were consistent with the RNA-seq data. The ELISA results indicate that MeV markedly decreased the serum levels of TNF-α and IL-1β in mice. Finally, the key proteins in the NF-κB and MAPK pathways were examined using immunoblotting. The results showed that MeV decreased IκB-α phosphorylation and inhibited the nuclear translocation of NF-κB. In addition, MeV reduced the hepatic inflammatory burst mainly by inhibiting the phosphorylation of p38 and JNK in the MAPK pathway. CONCLUSION The present study demonstrated (i) that MeV could ameliorate APAP-induced ALI by inhibiting arachidonic acid metabolism and the TNF, MAPK, and NF-κB pathways, and (ii) that MeV is a promising drug candidate for the prevention of ALI.
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Affiliation(s)
- Tingwen Zhang
- College of Pharmacy, Jilin Medical University, No. 5, Jilin Street, Fengman District, Jilin City, Jilin Province, China
| | - Yue Zhong
- College of Pharmacy, Jilin Medical University, No. 5, Jilin Street, Fengman District, Jilin City, Jilin Province, China
| | - Yan Shi
- College of Pharmacy, Jilin Medical University, No. 5, Jilin Street, Fengman District, Jilin City, Jilin Province, China
| | - Chengcheng Feng
- College of Pharmacy, Jilin Medical University, No. 5, Jilin Street, Fengman District, Jilin City, Jilin Province, China
| | - Lu Xu
- College of Pharmacy, Jilin Medical University, No. 5, Jilin Street, Fengman District, Jilin City, Jilin Province, China
| | - Zheng Chen
- Jilin Hospital of Integrated Traditional Chinese and Western Medicine, No.9 Changchun Road, Chuanying District, Jilin City, Jilin Province, China
| | - Xin Sun
- College of Pharmacy, Jilin Medical University, No. 5, Jilin Street, Fengman District, Jilin City, Jilin Province, China
| | - Yan Zhao
- College of Chinese Medicinal Materials, Jilin Agricultural University, No. 2888, Xincheng Street, Nanguan District, Changchun City, Jilin Province, China.
| | - Xialin Sun
- College of Pharmacy, Jilin Medical University, No. 5, Jilin Street, Fengman District, Jilin City, Jilin Province, China.
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Cocea AC, Stoica CI. Interactions and Trends of Interleukins, PAI-1, CRP, and TNF-α in Inflammatory Responses during the Perioperative Period of Joint Arthroplasty: Implications for Pain Management-A Narrative Review. J Pers Med 2024; 14:537. [PMID: 38793119 PMCID: PMC11122505 DOI: 10.3390/jpm14050537] [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: 04/16/2024] [Revised: 05/14/2024] [Accepted: 05/15/2024] [Indexed: 05/26/2024] Open
Abstract
Inflammation during the perioperative period of joint arthroplasty is a critical aspect of patient outcomes, influencing both the pathophysiology of pain and the healing process. This narrative review comprehensively evaluates the roles of specific cytokines and inflammatory biomarkers in this context and their implications for pain management. Inflammatory responses are initiated and propagated by cytokines, which are pivotal in the development of both acute and chronic postoperative pain. Pro-inflammatory cytokines play essential roles in up-regulating the inflammatory response, which, if not adequately controlled, leads to sustained pain and impaired tissue healing. Anti-inflammatory cytokines work to dampen inflammatory responses and promote resolution. Our discussion extends to the genetic and molecular influences on cytokine production, which influence pain perception and recovery rates post-surgery. Furthermore, the role of PAI-1 in modulating inflammation through its impact on the fibrinolytic system highlights its potential as a therapeutic target. The perioperative modulation of these cytokines through various analgesic and anesthetic techniques, including the fascia iliac compartment block, demonstrates a significant reduction in pain and inflammatory markers, thus underscoring the importance of targeted therapeutic strategies. Our analysis suggests that a nuanced understanding of the interplay between pro-inflammatory and anti-inflammatory cytokines is required. Future research should focus on individualized pain management strategies.
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Affiliation(s)
- Arabela-Codruta Cocea
- Faculty of Medicine, Doctoral School, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | - Cristian Ioan Stoica
- Orthopedics, Anaesthesia Intensive Care Unit, Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania;
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Tang C, Qiao X, Jin Y, Yang W, Yu Z, Wang L, Song L. An LPS-induced TNF-α factor involved in immune response of oyster Crassostrea gigas by regulating haemocytes apoptosis. FISH & SHELLFISH IMMUNOLOGY 2024; 148:109513. [PMID: 38521141 DOI: 10.1016/j.fsi.2024.109513] [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: 01/12/2024] [Revised: 03/13/2024] [Accepted: 03/15/2024] [Indexed: 03/25/2024]
Abstract
LPS induced TNF-α Factor (LITAF) is a transcription factor widely involving in activation of Tumor Necrosis Factor (TNF) and other cytokines in the inflammatory response. In the present study, a homologue of LITAF with a conserved LITAF domain was identified from the Pacific oyster Crassostrea gigas. The transcripts of CgLITAF were detected in all examined tissues with highest expression in hepatopancrease. The immunofluorescence assay and Western blot showed that LPS stimulation induced an obvious nucleus translocation of CgLITAF protein in haemocytes. While the mRNA level of CgLITAF changed slightly after LPS stimulation. When the siRNA of CgLITAF was injected to inhibit its expression, the apoptotic level of haemocytes decreased observably after LPS stimulation. Consistently, the transcripts of CgTNF3 and CgTNF4 (LOC105343080, LOC105341146), the apoptotic-related molecules including CgBax, CgCytochrome c, CgCaspase9 and CgCaspase3, were significantly suppressed in the CgLITAF-RNAi oysters. While the mRNA expression level of CgBcl was enhanced significantly in the CgLITAF-RNAi oysters. These results indicated that CgLITAF promoted haemocyte apoptosis by regulating the expression of apoptotic-related factors, suggesting its important role in the immune response of oysters.
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Affiliation(s)
- Chunyu Tang
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China; Laboratory of Marine Fisheries Science and Food Production Process, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China
| | - Xue Qiao
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China; Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), Zhuhai, 519000, China; Laboratory of Marine Fisheries Science and Food Production Process, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China.
| | - Yuhao Jin
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China; Laboratory of Marine Fisheries Science and Food Production Process, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China
| | - Wenwen Yang
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China; Laboratory of Marine Fisheries Science and Food Production Process, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China
| | - Zhuo Yu
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China; Laboratory of Marine Fisheries Science and Food Production Process, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China
| | - Lingling Wang
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China; Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), Zhuhai, 519000, China; Laboratory of Marine Fisheries Science and Food Production Process, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; Dalian Key Laboratory of Aquatic Animal Disease Prevention and Control, Dalian Ocean University, Dalian, 116023, China.
| | - Linsheng Song
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China; Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), Zhuhai, 519000, China; Laboratory of Marine Fisheries Science and Food Production Process, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; Dalian Key Laboratory of Aquatic Animal Disease Prevention and Control, Dalian Ocean University, Dalian, 116023, China
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11
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Denaro S, Pasquinucci L, Turnaturi R, Alberghina C, Longhitano L, Giallongo S, Costanzo G, Spoto S, Grasso M, Zappalà A, Li Volti G, Tibullo D, Vicario N, Parenti R, Parenti C. Sigma-1 Receptor Inhibition Reduces Mechanical Allodynia and Modulate Neuroinflammation in Chronic Neuropathic Pain. Mol Neurobiol 2024; 61:2672-2685. [PMID: 37922065 PMCID: PMC11043107 DOI: 10.1007/s12035-023-03717-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 10/17/2023] [Indexed: 11/05/2023]
Abstract
Neuropathic pain is one of the most debilitating forms of chronic pain, resulting from an injury or disease of the somatosensory nervous system, which induces abnormal painful sensations including allodynia and hyperalgesia. Available treatments are limited by severe side-effects and reduced efficacy in the chronic phase of the disease. Sigma-1 receptor (σ1R) has been identified as a chaperone protein, which modulate opioid receptors activities and the functioning of several ion channels, exerting a role in pain transmission. As such, it represents a druggable target to treat neuropathic pain. This study aims at investigating the therapeutic potential of the novel compound (+)-2R/S-LP2, a σ1R antagonist, in reducing painful behaviour and modulating the neuroinflammatory environment. We showed that repeated administration of the compound significantly inhibited mechanical allodynia in neuropathic rats, increasing the withdrawal threshold as compared to CCI-vehicle rats. Moreover, we found that (+)-2R/S-LP2-mediated effects resolve the neuroinflammatory microenvironment by reducing central gliosis and pro-inflammatory cytokines expression levels. This effect was coupled with a significant reduction of connexin 43 (Cx43) expression levels and gap junctions/hemichannels mediated microglia-to-astrocyte communication. These results suggest that inhibition of σ1R significantly attenuates neuropathic pain chronicization, thus representing a viable effective strategy.
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Affiliation(s)
- Simona Denaro
- Section of Physiology, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Lorella Pasquinucci
- Section of Medicinal Chemistry, Department of Drug and Health Sciences, University of Catania, 95123, Catania, Italy
| | - Rita Turnaturi
- Section of Medicinal Chemistry, Department of Drug and Health Sciences, University of Catania, 95123, Catania, Italy
| | - Cristiana Alberghina
- Section of Physiology, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Lucia Longhitano
- Section of Biochemistry, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Sebastiano Giallongo
- Section of Biochemistry, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Giuliana Costanzo
- Section of Medicinal Chemistry, Department of Drug and Health Sciences, University of Catania, 95123, Catania, Italy
| | - Salvatore Spoto
- Section of Pharmacology and Toxicology, Department of Drug and Health Sciences, University of Catania, 95123, Catania, Italy
| | - Margherita Grasso
- Unit of Neuropharmacology and Translational Neurosciences, Oasi Research Institute-IRCCS, 94018, Troina, Italy
| | - Agata Zappalà
- Section of Physiology, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Giovanni Li Volti
- Section of Biochemistry, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Daniele Tibullo
- Section of Biochemistry, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Nunzio Vicario
- Section of Physiology, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy.
| | - Rosalba Parenti
- Section of Physiology, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy.
| | - Carmela Parenti
- Section of Pharmacology and Toxicology, Department of Drug and Health Sciences, University of Catania, 95123, Catania, Italy
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12
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Gong M, Qi S, Wu Z, Huang Y, Wu L, Wang X, He L, Lin L, Lin D. A novel therapeutic approach to modulate the inflammatory cascade: A timely exogenous local inflammatory response attenuates the sepsis-induced cytokine storm. Cytokine 2024; 176:156533. [PMID: 38340550 DOI: 10.1016/j.cyto.2024.156533] [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: 10/19/2023] [Revised: 01/03/2024] [Accepted: 01/26/2024] [Indexed: 02/12/2024]
Abstract
BACKGROUND The emergence of severe sepsis is contingent upon the occurrence of a cytokine storm (CS), a multifaceted process intricately entwined with the temporal dimension, thereby rendering the infection response remarkably intricate. Consequently, it becomes imperative to discern and accurately identify the optimal timing for interventions, predicated upon the dynamic timeline of inflammatory changes. Moreover, the administration of exogenous low-dose pro-inflammatory agents has exhibited the potential to impede the relentless progression of the inflammatory cascade. Hence, the present study aims to scrutinize the impact of exogenous Local Inflammatory Response (eLIR) on the body surface in the context of the inflammatory cascade during sepsis, within a temporal framework, with a particular emphasis on the point of exacerbation of inflammation. METHODS Rats were induced sterile sepsis by intraperitoneal injection of zymosan (ZY) at an appropriate dosage. The temporal progression of inflammatory changes and eLIR effects were described based on the trend of serum crucial inflammatory cytokines, tring to quest time-point of inflammatory aggravation in sepsis. Then, the varying degrees of surface inflammation caused by eLIR on this time point leading to the final effects on the inflammatory cascade response were explored. In addition, given the authentic pathological progression of sepsis, further observation was conducted on the impact of another intervention timing of eLIR on the inflammatory cascade. The survival rate was measured. Serum and organ related inflammatory cytokines were detected, and organ histopathology was investigated. RESULTS In present study, a dosage of 600 mg/kg ZY was found to be optimal for the sterile sepsis model. Initiating eLIR 6 h prior to ZY injection, the maximum effect point of eLIR could be precisely align with the inflammatory aggravation point of sterile sepsis. Initiating eLIR at this time, 3 sessions of eLIR were found to be more effective than 1 or 2 sessions in mitigating inflammatory responses during the initial stage of inflammation and the peak of inflammation. Notably, the findings also suggested that this intervention improve survival rate. In addition, the anti-inflammatory efficacy has been substantially diminished by the prompt initiation of 3 sessions of eLIR immediately after ZY injection at the onset of sepsis. Similarly, the current findings did not demonstrate a statistically significant enhancement in survival rates with eLIR at this time point. CONCLUSIONS Compared with the initial stage of inflammation, low-scale inflammation caused by a certain intensity of eLIR (3 sessions) on the body surface can more effectively pry the inflammation aggravation time-point, thereby shifting the pro-inflammatory to anti-inflammatory milieu, impeding the disproportionate cytokines release in inflammatory diseases, slowing down the inflammatory cascade, and improving the survival rate of sepsis.
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Affiliation(s)
- Meng Gong
- College of Acupuncture, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian Province, China
| | - Shiyi Qi
- College of Acupuncture, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian Province, China
| | - Zhiting Wu
- College of Acupuncture, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian Province, China
| | - Ying Huang
- College of Acupuncture, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian Province, China
| | - Lihua Wu
- Department of Otolaryngology, Fujian provincial hospital, Fuzhou, Fujian Province, China
| | - Xiangbin Wang
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian Province, China
| | - Lingling He
- College of Acupuncture, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian Province, China
| | - Lili Lin
- College of Acupuncture, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian Province, China; Institute of Acupuncture and Meridian, Fujian Academy of Chinese Medical Sciences, Fuzhou, Fujian Province, China
| | - Dong Lin
- College of Acupuncture, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian Province, China; Institute of Acupuncture and Meridian, Fujian Academy of Chinese Medical Sciences, Fuzhou, Fujian Province, China.
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13
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Arantes ALF, Carvalho MC, Brandão ML, Prado WA, Crippa JADS, Lovick TA, Genaro K. Antinociceptive action of cannabidiol on thermal sensitivity and post-operative pain in male and female rats. Behav Brain Res 2024; 459:114793. [PMID: 38048909 DOI: 10.1016/j.bbr.2023.114793] [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: 07/21/2023] [Revised: 11/22/2023] [Accepted: 11/30/2023] [Indexed: 12/06/2023]
Abstract
This study investigated the antinociceptive potential of cannabidiol (CBD) in male and female Wistar rats. The assessment and analysis included tail withdrawal to thermal stimulation (tail flick test) and mechanical allodynia induced by plantar incision injury (von Frey test). CBD reduced acute thermal sensitivity in uninjured animals and post-operative mechanical allodynia in males and females. In the tail flick test, CBD 30 mg/kg i.p. was required to induce antinociception in males. During the proestrus phase, females did not show a statistically significant antinociceptive response to CBD treatment despite a noticeable trend. In contrast, in a separate group of rats tested during the late diestrus phase, antinociception varied with CBD dosage and time. In the post-operative pain model, CBD at 3 mg/kg decreased mechanical allodynia in males. Similarly, this dose reduced allodynia in females during proestrus. However, in females during late diestrus, the lower dose of CBD (0.3 mg/kg) reduced mechanical allodynia, although the latency to onset of the effect was slower (90 min). The effectiveness of a 10-fold lower dose of CBD during the late diestrus stage in females suggests that ovarian hormones can influence the action of CBD. While CBD has potential for alleviating pain in humans, personalized dosing regimens may need to be developed to treat pain in women.
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Affiliation(s)
- Ana Luisa Ferreira Arantes
- Institute of Neurosciences and Behavior and Laboratory of Neuropsychopharmacology of Faculty of Philosophy, Sciences and Letters of University of São Paulo, Ribeirao Preto, SP 14040-900, Brazil
| | - Milene Cristina Carvalho
- Department of Neuroscience and Behavioral Sciences, Ribeirão Preto Medical School, University of São Paulo, SP 14040-900, Brazil; Institute of Neurosciences and Behavior and Laboratory of Neuropsychopharmacology of Faculty of Philosophy, Sciences and Letters of University of São Paulo, Ribeirao Preto, SP 14040-900, Brazil
| | - Marcus Lira Brandão
- Institute of Neurosciences and Behavior and Laboratory of Neuropsychopharmacology of Faculty of Philosophy, Sciences and Letters of University of São Paulo, Ribeirao Preto, SP 14040-900, Brazil
| | - Wiliam Alves Prado
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, SP 14040-900, Brazil
| | - José Alexandre de Souza Crippa
- Department of Neuroscience and Behavioral Sciences, Ribeirão Preto Medical School, University of São Paulo, SP 14040-900, Brazil; National Institute of Science and Technology for Translational Medicine, Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (INCT-TM, CNPq), Brasília, DF 71605-001, Brazil
| | - Thelma Anderson Lovick
- Physiology, Pharmacology & Neuroscience, University of Bristol, Bristol BS8 1TD, United Kingdom
| | - Karina Genaro
- Department of Anesthesiology, School of Medicine, University of California, Irvine, CA 92617, USA.
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14
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Fan X, Gong M, Zhang S, Niu W, Sun S, Yu H, Chen X, Fang Z. Blocking Palmitoylation of Apelin Receptor Alleviates Morphine Tolerance in Neuropathic Cancer Pain. Int J Biol Sci 2024; 20:47-60. [PMID: 38164190 PMCID: PMC10750292 DOI: 10.7150/ijbs.86888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 10/13/2023] [Indexed: 01/03/2024] Open
Abstract
Neuropathic cancer pain (NCP) is an important symptom in patients with cancer. However, significant analgesic tolerance and other side effects critically hamper the administration of morphine. Protein palmitoylation mediated by the DHHC family may be involved in the glial activation and inflammatory responses underlying organ failure. In this study, we investigated the key role of protein palmitoylation in cancer pain and sought to target palmitoylation to suppress morphine tolerance. We found that long-term use of morphine led to the accumulation of the morphine metabolite, morphine-3-glucuronide, in vivo and activated ERK1/2 and microglia to release inflammatory factors through the apelin receptor APLNR. Palmitoyltransferase ZDHHC9 was upregulated in NCP, and APLNR was palmitylated to protect it from lysosomal degradation and to maintain its stability. We also designed competitive inhibitors of APLNR palmitoylation to inhibit the development of NCP, release of inflammatory factors, and attenuation of morphine tolerance. Therefore, targeting APLNR palmitoylation in combination with morphine is a potent method for cancer pain treatment. Our data provide a basis for the future clinical use of related drugs combined with morphine for the treatment of cancer-related pain.
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Affiliation(s)
- Xiaoqing Fan
- Anhui Province Key Laboratory of Medical Physics and Technology; Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, No. 350, Shushan Hu Road, Hefei, Anhui, 230031, China
- Science Island Branch, Graduate School of University of Science and Technology of China, No. 96, Jin Zhai Road, Hefei, Anhui, 230026, China
- Department of Laboratory Medicine, Hefei Cancer Hospital, Chinese Academy of Sciences, No. 350, Shushan Hu Road, Hefei, Anhui, 230031, China
- Department of Anesthesiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China (USTC), No. 17, Lu Jiang Road, Hefei, Anhui, 230001, China
| | - Meiting Gong
- Anhui Province Key Laboratory of Medical Physics and Technology; Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, No. 350, Shushan Hu Road, Hefei, Anhui, 230031, China
- Department of Laboratory Medicine, Hefei Cancer Hospital, Chinese Academy of Sciences, No. 350, Shushan Hu Road, Hefei, Anhui, 230031, China
- Department of Pathophysiology, School of Basic Medicine, Anhui Medical University, No. 81, Meishan Road, Hefei, Anhui, 230032, China
| | - Siyu Zhang
- Anhui Province Key Laboratory of Medical Physics and Technology; Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, No. 350, Shushan Hu Road, Hefei, Anhui, 230031, China
- Science Island Branch, Graduate School of University of Science and Technology of China, No. 96, Jin Zhai Road, Hefei, Anhui, 230026, China
| | - Wanxiang Niu
- Anhui Province Key Laboratory of Medical Physics and Technology; Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, No. 350, Shushan Hu Road, Hefei, Anhui, 230031, China
- Science Island Branch, Graduate School of University of Science and Technology of China, No. 96, Jin Zhai Road, Hefei, Anhui, 230026, China
| | - Suling Sun
- Anhui Province Key Laboratory of Medical Physics and Technology; Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, No. 350, Shushan Hu Road, Hefei, Anhui, 230031, China
- Science Island Branch, Graduate School of University of Science and Technology of China, No. 96, Jin Zhai Road, Hefei, Anhui, 230026, China
| | - Huihan Yu
- Anhui Province Key Laboratory of Medical Physics and Technology; Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, No. 350, Shushan Hu Road, Hefei, Anhui, 230031, China
- Department of Laboratory Medicine, Hefei Cancer Hospital, Chinese Academy of Sciences, No. 350, Shushan Hu Road, Hefei, Anhui, 230031, China
- Department of Pathophysiology, School of Basic Medicine, Anhui Medical University, No. 81, Meishan Road, Hefei, Anhui, 230032, China
| | - Xueran Chen
- Anhui Province Key Laboratory of Medical Physics and Technology; Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, No. 350, Shushan Hu Road, Hefei, Anhui, 230031, China
- Science Island Branch, Graduate School of University of Science and Technology of China, No. 96, Jin Zhai Road, Hefei, Anhui, 230026, China
- Department of Laboratory Medicine, Hefei Cancer Hospital, Chinese Academy of Sciences, No. 350, Shushan Hu Road, Hefei, Anhui, 230031, China
| | - Zhiyou Fang
- Anhui Province Key Laboratory of Medical Physics and Technology; Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, No. 350, Shushan Hu Road, Hefei, Anhui, 230031, China
- Science Island Branch, Graduate School of University of Science and Technology of China, No. 96, Jin Zhai Road, Hefei, Anhui, 230026, China
- Department of Laboratory Medicine, Hefei Cancer Hospital, Chinese Academy of Sciences, No. 350, Shushan Hu Road, Hefei, Anhui, 230031, China
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15
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Xi C, He L, Huang Z, Zhang J, Zou K, Guo Q, Huang C. Combined metabolomics and transcriptomics analysis of rats under neuropathic pain and pain-related depression. Front Pharmacol 2023; 14:1320419. [PMID: 38143492 PMCID: PMC10739318 DOI: 10.3389/fphar.2023.1320419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 11/29/2023] [Indexed: 12/26/2023] Open
Abstract
Neuropathic pain often leads to negative emotions, which in turn can enhance the sensation of pain. This study aimed to investigate the molecular mechanisms mediating neuropathic pain and negative emotions. Chronic constriction injury (CCI) rats were used as model animals and behavioral tests were conducted to assess pain and negative emotions. Then, the rat anterior cingulate cortex (ACC) was analyzed using UPLC-MS/MS and subsequently integrated with our previously published transcriptome data. Metabolomics analysis revealed that 68 differentially expressed metabolites (DEMs) were identified, mainly in amino acid metabolites and fatty acyls. Combined with our previously published transcriptome data, we predicted two genes that potentially exhibited associations with these metabolites, respectively Apolipoprotein L domain containing 1 (Apold1) and WAP four-disulfide core domain 1 (Wfdc1). Taken together, our results indicated that peripheral nerve injury contributing to neuropathic pain and pain-related depression may be associated with these metabolites and genes. This research provides new insights into the molecular regulatory mechanism, which could serve as a reference for the treatment of neuropathic pain and pain-related depression.
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Affiliation(s)
- Caiyun Xi
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, China
| | - Liqiong He
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, China
| | - Zhifeng Huang
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, China
| | - Jianxi Zhang
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, China
| | - Kailu Zou
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, China
| | - Qulian Guo
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Changsheng Huang
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
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16
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Dai J, Han Y, Fang T, Shao H, Teng L, Zou H. Clinical Significance of Mean Platelet Volume Combined with Neutrophil-Lymphocyte Ratio in Predicting the Therapeutic Effect of Splanchnic Neurolysis. J Inflamm Res 2023; 16:5027-5037. [PMID: 37927957 PMCID: PMC10625329 DOI: 10.2147/jir.s428641] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 10/23/2023] [Indexed: 11/07/2023] Open
Abstract
Introduction In most cases of pain related to abdominal tumors, increasing the dosage of analgesics still makes the pain difficult to alleviate. Splanchnic neurolysis is a new treatment option. However, not all patients receiving splanchnic neurolysis treatment will achieve satisfactory results. The aim of this study is to retrospectively analyze the predictive value of preoperative serum immune indicators (white blood cells, neutrophils, lymphocytes, and platelets) for the efficacy of splanchnic neurolysis. Methods The abdominal cancer patients (pancreatic cancer, liver cancer, gastric cancer, colorectal cancer, cholangiocarcinoma, and renal cancer) admitted to the Department of Pain Medicine, Harbin Medical University Cancer Hospital from January 2017 to October 2020 were collected. We evaluate the efficacy of splanchnic neurolysis by assessing the dosage of opioids and Numerical Rating Scale (NRS) scores of patients 24 to 48 hr before and after splanchnic neurolysis. The predictive value of preoperative serum immune indicators on the efficacy of splanchnic neurolysis was analyzed using Receiver Operating Characteristic (ROC). Contract the Nomogram prediction model by R software. Results We found that Mean Platelet Volume (MPV) has statistical significance for predicting splanchnic neurolysis efficacy in digestive system tumors. MPV and Neutrophil-Lymphocyte Ratio (NLR) are independent predictors and have statistical significance in predicting splanchnic neurolysis efficacy in pancreatic cancer. The combination of MPV and NLR had satisfactory predictive value in pancreatic cancer (AUC = 0.715) and the nomogram model was constructed. Furthermore, there was a negative correlation between lymphocyte count and NRS score, and a positive correlation between Platelet-Lymphocyte Ratio (PLR) and NRS score. Discussion The combined detection of MPV and NLR has important clinical predictive value for the postoperative efficacy of splanchnic neurolysis in pancreatic cancer.
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Affiliation(s)
- Junzhu Dai
- Department of Pain Medicine, Harbin Medical University Cancer Hospital, Harbin, People’s Republic of China
| | - Yuxiang Han
- Department of Pain Medicine, Harbin Medical University Cancer Hospital, Harbin, People’s Republic of China
| | - Tianyi Fang
- Department of Gastroenterological Surgery, Harbin Medical University Cancer Hospital, Harbin, People’s Republic of China
| | - Hongxue Shao
- Department of Pain Medicine, Harbin Medical University Cancer Hospital, Harbin, People’s Republic of China
| | - Lei Teng
- Department of Pain Medicine, Harbin Medical University Cancer Hospital, Harbin, People’s Republic of China
| | - Huichao Zou
- Department of Pain Medicine, Harbin Medical University Cancer Hospital, Harbin, People’s Republic of China
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17
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Duan Y, Li Q, Zhou Y, Chen S, Li Y, Zang Y. Activation of the TNF-α-Necroptosis Pathway in Parvalbumin-Expressing Interneurons of the Anterior Cingulate Cortex Contributes to Neuropathic Pain. Int J Mol Sci 2023; 24:15454. [PMID: 37895135 PMCID: PMC10607712 DOI: 10.3390/ijms242015454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/19/2023] [Accepted: 10/20/2023] [Indexed: 10/29/2023] Open
Abstract
The hyperexcitability of the anterior cingulate cortex (ACC) has been implicated in the development of chronic pain. As one of the key causes of ACC hyperexcitation, disinhibition of the ACC may be closely related to the dysfunction of inhibitory parvalbumin (PV)-expressing interneurons (PV-INs). However, the molecular mechanism underlying the ACC PV-INs injury remains unclear. The present study demonstrates that spared sciatic nerve injury (SNI) induces an imbalance in the excitation and inhibition (E/I) of the ACC. To test whether tumor necrosis factor-α (TNF-α) upregulation in the ACC after SNI activates necroptosis and participates in PV-INs damage, we performed a differential analysis of transcriptome sequencing using data from neuropathic pain models and found that the expression of genes key to the TNF-α-necroptosis pathway were upregulated. TNF-α immunoreactivity (IR) signals in the ACCs of SNI rats were co-located with p-RIP3- and PV-IR, or p-MLKL- and PV-IR signals. We then systematically detected the expression and cell localization of necroptosis-related proteins, including kinase RIP1, RIP3, MLKL, and their phosphorylated states, in the ACC of SNI rats. Except for RIP1 and MLKL, the levels of these proteins were significantly elevated in the contralateral ACC and mainly expressed in PV-INs. Blocking the ACC TNF-α-necroptosis pathway by microinjecting TNF-α neutralizing antibody or using an siRNA knockdown to block expression of MLKL in the ACC alleviated SNI-induced pain hypersensitivity and inhibited the upregulation of TNF-α and p-MLKL. Targeting TNF-α-triggered necroptosis within ACC PV-INs may help to correct PV-INs injury and E/I imbalance in the ACC in neuropathic pain.
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Affiliation(s)
- Yiwen Duan
- Guangdong Provincial Key Laboratory of Brain Function and Disease, Pain Research Center, Department of Physiology, Zhongshan Medical School, Sun Yat-Sen University, 74 Zhongshan Road 2, Guangzhou 510080, China; (Y.D.); (Q.L.); (Y.Z.); (Y.L.)
| | - Qiaoyun Li
- Guangdong Provincial Key Laboratory of Brain Function and Disease, Pain Research Center, Department of Physiology, Zhongshan Medical School, Sun Yat-Sen University, 74 Zhongshan Road 2, Guangzhou 510080, China; (Y.D.); (Q.L.); (Y.Z.); (Y.L.)
| | - Yaohui Zhou
- Guangdong Provincial Key Laboratory of Brain Function and Disease, Pain Research Center, Department of Physiology, Zhongshan Medical School, Sun Yat-Sen University, 74 Zhongshan Road 2, Guangzhou 510080, China; (Y.D.); (Q.L.); (Y.Z.); (Y.L.)
| | - Shaoxia Chen
- State Key Laboratory of Oncology in South China, Department of Anesthesiology, Sun Yat-Sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, 651 Dongfeng Road East, Guangzhou 510060, China;
| | - Yongyong Li
- Guangdong Provincial Key Laboratory of Brain Function and Disease, Pain Research Center, Department of Physiology, Zhongshan Medical School, Sun Yat-Sen University, 74 Zhongshan Road 2, Guangzhou 510080, China; (Y.D.); (Q.L.); (Y.Z.); (Y.L.)
| | - Ying Zang
- Guangdong Provincial Key Laboratory of Brain Function and Disease, Pain Research Center, Department of Physiology, Zhongshan Medical School, Sun Yat-Sen University, 74 Zhongshan Road 2, Guangzhou 510080, China; (Y.D.); (Q.L.); (Y.Z.); (Y.L.)
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18
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Yue C, Luan W, Gu H, Qiu D, Ding X, Liu P, Wang X, Hashimoto K, Yang JJ. The role of the gut-microbiota-brain axis via the subdiaphragmatic vagus nerve in chronic inflammatory pain and comorbid spatial working memory impairment in complete Freund's adjuvant mice. J Psychiatr Res 2023; 166:61-73. [PMID: 37741061 DOI: 10.1016/j.jpsychires.2023.09.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/09/2023] [Accepted: 09/13/2023] [Indexed: 09/25/2023]
Abstract
Chronic inflammatory pain (CIP) is a common public medical problem, often accompanied by memory impairment. However, the mechanisms underlying CIP and comorbid memory impairment remain elusive. This study aimed to examine the role of the gut-microbiota-brain axis in CIP and comorbid memory impairment in mice treated with complete Freund's adjuvant (CFA). 16S rRNA analysis showed the altered diversity of gut microbiota from day 1 to day 14 after CFA injection. Interestingly, fecal microbiota transplantation (FMT) from healthy naive mice ameliorated comorbidities, such as mechanical allodynia, thermal hyperalgesia, spatial working memory impairment, neuroinflammation, and abnormal composition of gut microbiota in the CFA mice. Additionally, subdiaphragmatic vagotomy (SDV) blocked the onset of these comorbidities. Interestingly, the relative abundance of the bacterial genus or species was also correlated with these comorbidities after FMT or SDV. Therefore, our results suggest that the gut-microbiota-brain axis via the subdiaphragmatic vagus nerve is crucial for the development of CIP and comorbid spatial working memory impairment in CFA mice.
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Affiliation(s)
- Caibao Yue
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China; Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Weiwei Luan
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China; Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Hanwen Gu
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Di Qiu
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Xin Ding
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Panmiao Liu
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Xingming Wang
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China.
| | - Kenji Hashimoto
- Division of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, Chiba, 260-8670, Japan.
| | - Jian-Jun Yang
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China.
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19
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Park J, Lee C, Kim YT. Effects of Natural Product-Derived Compounds on Inflammatory Pain via Regulation of Microglial Activation. Pharmaceuticals (Basel) 2023; 16:941. [PMID: 37513853 PMCID: PMC10386117 DOI: 10.3390/ph16070941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 06/22/2023] [Accepted: 06/26/2023] [Indexed: 07/30/2023] Open
Abstract
Inflammatory pain is a type of pain caused by tissue damage associated with inflammation and is characterized by hypersensitivity to pain and neuroinflammation in the spinal cord. Neuroinflammation is significantly increased by various neurotransmitters and cytokines that are expressed in activated primary afferent neurons, and it plays a pivotal role in the development of inflammatory pain. The activation of microglia and elevated levels of pro-inflammatory cytokines are the hallmark features of neuroinflammation. During the development of neuroinflammation, various intracellular signaling pathways are activated or inhibited in microglia, leading to the regulation of inflammatory proteins and cytokines. Numerous attempts have been conducted to alleviate inflammatory pain by inhibiting microglial activation. Natural products and their compounds have gained attention as potential candidates for suppressing inflammatory pain due to verified safety through centuries of use. Many studies have also shown that natural product-derived compounds have the potential to suppress microglial activation and alleviate inflammatory pain. Herein, we review the literature on inflammatory mediators and intracellular signaling involved in microglial activation in inflammatory pain, as well as natural product-derived compounds that have been found to suppress microglial activation. This review suggests that natural product-derived compounds have the potential to alleviate inflammatory pain through the suppression of microglial activation.
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Affiliation(s)
- Joon Park
- Division of Functional Food Research, Korea Food Research Institute, Wanju 55365, Republic of Korea
- Department of Food Biotechnology, Korea University of Science and Technology, Daejeon 34113, Republic of Korea
- Department of Anesthesiology, College of Medicine, The University of Arizona, Tucson, AZ 85724, USA
| | - Changho Lee
- Division of Functional Food Research, Korea Food Research Institute, Wanju 55365, Republic of Korea
| | - Yun Tai Kim
- Division of Functional Food Research, Korea Food Research Institute, Wanju 55365, Republic of Korea
- Department of Food Biotechnology, Korea University of Science and Technology, Daejeon 34113, Republic of Korea
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20
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Yang S, Zhang B, Wang D, Hu S, Wang W, Liu C, Wu Z, Yang C. Role of GABAergic system in the comorbidity of pain and depression. Brain Res Bull 2023:110691. [PMID: 37331640 DOI: 10.1016/j.brainresbull.2023.110691] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 05/23/2023] [Accepted: 06/16/2023] [Indexed: 06/20/2023]
Abstract
Patients with chronic pain often suffer with depressive symptoms, and these two conditions can be aggravated by each other over time, leading to an increase in symptom intensity and duration. The comorbidity of pain and depression poses a significant challenge to human health and quality of life, as it is often difficult to diagnose early and treat effectively. Therefore, exploring the molecular mechanisms underlying the comorbidity of chronic pain and depression is crucial to identifying new therapeutic targets for treatment. However, understanding the pathogenesis of comorbidity requires examining interactions among multiple factors, which calls for an integrative perspective. While several studies have explored the role of the GABAergic system in pain and depression, fewer have examined its interactions with other systems involved in their comorbidity. Here, we review the evidence that the role of GABAergic system in the comorbidity of chronic pain and depression, as well as the interactions between the GABAergic system and other secondary systems involved in pain and depression comorbidity, providing a comprehensive understanding of their intricate interplay.
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Affiliation(s)
- Siqi Yang
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029. China
| | - Bingyuan Zhang
- Department of Anesthesiology, Taizhou People's Hospital Affiliated to Nanjing Medical University, No. 399 Hailing South Road, Taizhou City, 225300, Jiangsu Province, China
| | - Di Wang
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029. China
| | - Suwan Hu
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029. China
| | - Wenli Wang
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029. China
| | - Cunming Liu
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029. China
| | - Zifeng Wu
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029. China.
| | - Chun Yang
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029. China.
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21
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Li Y, Shi W, Dai J, Jia Q, Guo G, Zhang Y, Zhang W. Upregulated TNF-α and lactate following ERK-SGK1 activation in the spinal dorsal horn underlies chronic postsurgical pain. CHINESE J PHYSIOL 2023; 66:144-152. [PMID: 37322625 DOI: 10.4103/cjop.cjop-d-22-00085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023] Open
Abstract
Skin/muscle incision and retraction (SMIR) during surgeries can lead to chronic postsurgical pain (CPSP). The underlying mechanisms are still unclear. In the present study, we showed that SMIR of the thigh induced phosphorylation of extracellular signal-regulated kinase (ERK), followed by serum- and glucocorticoid-inducible kinase-1 (SGK1) activation in the spinal dorsal horn. Intrathecal injection of PD98059, an ERK inhibitor, or GSK650394, a SGK1 inhibitor, significantly attenuated mechanical pain hypersensitivity in SMIR rats. The level of tumor necrosis factor α and lactate in spinal cord was significantly decreased by PD98059 or GSK650394 injection. Furthermore, PD98059 decreased the activation of SGK1 in the spinal dorsal horn. These results indicate that ERK-SGK1 activation followed by proinflammatory mediator release in the spinal dorsal horn underlies CPSP.
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Affiliation(s)
- Yuying Li
- School of Medical Technology and Nursing, Shenzhen Polytechnic, Shenzhen, Guangdong, China
| | - Wenjuan Shi
- Affiliated Shenzhen Maternity and Child Healthcare Hospital, Southern Medical University, Shenzhen, Guangdong, China
| | - Juanli Dai
- Department of Neurology, Xiehe Shenzhen Hospital, Huazhong University of Science and Technology, Shenzhen, Guangdong, China
| | - Qi Jia
- School of Medical Technology and Nursing, Shenzhen Polytechnic, Shenzhen, Guangdong, China
| | - Gang Guo
- School of Medical Technology and Nursing, Shenzhen Polytechnic, Shenzhen, Guangdong, China
| | | | - Weihong Zhang
- School of Medical Technology and Nursing, Shenzhen Polytechnic, Shenzhen, Guangdong, China
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22
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García-Fernández P, Reinhold C, Üçeyler N, Sommer C. Local Inflammatory Mediators Involved in Neuropathic Pain. Int J Mol Sci 2023; 24:ijms24097814. [PMID: 37175520 PMCID: PMC10178336 DOI: 10.3390/ijms24097814] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 04/17/2023] [Accepted: 04/21/2023] [Indexed: 05/15/2023] Open
Abstract
Polyneuropathy (PNP) is a term to describe diseases of the peripheral nervous system, 50% of which present with neuropathic pain. In some types of PNP, pain is restricted to the skin distally in the leg, suggesting a local regulatory process leading to pain. In this study, we proposed a pro-inflammatory pathway mediated by NF-κB that might be involved in the development of pain in patients with painful PNP. To test this hypothesis, we have collected nerve and skin samples from patients with different etiologies and levels of pain. We performed RT-qPCR to analyze the gene expression of the proposed inflammatory pathway components in sural nerve and in distal and proximal skin samples. In sural nerve, we showed a correlation of TLR4 and TNFα to neuropathic pain, and an upregulation of TNFα in patients with severe pain. Patients with an inflammatory PNP also presented a lower expression of TRPV1 and SIRT1. In distal skin, we found a reduced expression of TLR4 and miR-146-5p, in comparison to proximal skin. Our findings thus support our hypothesis of local inflammatory processes involved in pain in PNP, and further show disturbed anti-inflammatory pathways involving TRPV1 and SIRT1 in inflammatory PNP.
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Affiliation(s)
| | - Colette Reinhold
- Department of Neurology, University Hospital of Würzburg, 97080 Würzburg, Germany
| | - Nurcan Üçeyler
- Department of Neurology, University Hospital of Würzburg, 97080 Würzburg, Germany
| | - Claudia Sommer
- Department of Neurology, University Hospital of Würzburg, 97080 Würzburg, Germany
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23
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Jin MY, Everett ES, Abd-Elsayed A. Microbiological and Physiological Effects of Pain. Curr Pain Headache Rep 2023; 27:165-173. [PMID: 37086365 PMCID: PMC10122082 DOI: 10.1007/s11916-023-01114-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/14/2023] [Indexed: 04/23/2023]
Abstract
Pain is an important innate defense mechanism that can dramatically alter a person's quality of life. Understanding the microbiological and physiological effects of pain may be important in the pursuit of novel pain interventions. The three descriptors of pain recognized by the International Association for the Study of Pain are nociceptive, neuropathic, and nociplastic pain. Our review examined the current understanding of all three pain types, focusing on the key molecules involved in the manifestation of each type as well as physiological effects. Additionally, we compared the differences in painful and painless neuropathies and discussed the neuroimmune interaction involved in the manifestation of pain.
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Affiliation(s)
- Max Y Jin
- Department of Anesthesiology, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Erin S Everett
- Tulane University School of Medicine, New Orleans, LA, 70112, USA
| | - Alaa Abd-Elsayed
- Department of Anesthesiology, University of Wisconsin-Madison, Madison, WI, 53706, USA.
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24
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Didamoony MA, Atwa AM, Ahmed LA. Modulatory effect of rupatadine on mesenchymal stem cell-derived exosomes in hepatic fibrosis in rats: A potential role for miR-200a. Life Sci 2023; 324:121710. [PMID: 37084952 DOI: 10.1016/j.lfs.2023.121710] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 04/16/2023] [Accepted: 04/17/2023] [Indexed: 04/23/2023]
Abstract
AIMS Mesenchymal stem cell-derived exosomes (MSC-EXOs) have emerged as a promising approach in regenerative medicine for management of different diseases. However, the maintenance of their efficacy after in vivo transplantation is still a major concern. The present investigation aimed to assess the modulatory effect of rupatadine (RUP) on MSC-EXOs in diethylnitrosamine (DEN)-induced liver fibrosis (LF), and to explore the possible underlying mechanism. MAIN METHODS LF was induced in rats by i.p. injection of DEN (100 mg/kg) once per week for 6 successive weeks. Rats were then treated with RUP (4 mg/kg/day, p.o.) for 4 weeks with or without a single i.v. administration of MSC-EXOs. At the end of the experiment, animals were euthanized and serum and liver were separated for biochemical, and histological measurements. KEY FINDINGS The combined MSC-EXOs/RUP therapy provided an additional improvement towards inhibition of DEN-induced LF compared to MSC-EXOs group alone. These outcomes could be mediated through antioxidant, anti-inflammatory, and anti-fibrotic effects of RUP which created a more favorable environment for MSC-EXOs homing, and action. This in turn would enhance more effectively miR-200a expression which reduced oxidative stress, inflammation, necroptosis pathway, and subsequently fibrosis as revealed by turning off TGF-β1/α-SMA expression, and hedgehog axis. SIGNIFICANCE The present findings reveal that RUP enhanced the anti-fibrotic efficacy of MSC-EXOs when used as a combined therapy. This was revealed through attenuation of PAF/RIPK3/MLKL/HMGB1, and TGF-β1/hedgehog signaling pathways with a significant role for miR-200a.
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Affiliation(s)
- Manar A Didamoony
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Egyptian Russian University, Cairo 11829, Egypt.
| | - Ahmed M Atwa
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Egyptian Russian University, Cairo 11829, Egypt
| | - Lamiaa A Ahmed
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt.
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25
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Boivin JC, Zhu J, Ohyama T. Nociception in fruit fly larvae. FRONTIERS IN PAIN RESEARCH 2023; 4:1076017. [PMID: 37006412 PMCID: PMC10063880 DOI: 10.3389/fpain.2023.1076017] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 02/28/2023] [Indexed: 03/19/2023] Open
Abstract
Nociception, the process of encoding and processing noxious or painful stimuli, allows animals to detect and avoid or escape from potentially life-threatening stimuli. Here, we provide a brief overview of recent technical developments and studies that have advanced our understanding of the Drosophila larval nociceptive circuit and demonstrated its potential as a model system to elucidate the mechanistic basis of nociception. The nervous system of a Drosophila larva contains roughly 15,000 neurons, which allows for reconstructing the connectivity among them directly by transmission electron microscopy. In addition, the availability of genetic tools for manipulating the activity of individual neurons and recent advances in computational and high-throughput behavior analysis methods have facilitated the identification of a neural circuit underlying a characteristic nocifensive behavior. We also discuss how neuromodulators may play a key role in modulating the nociceptive circuit and behavioral output. A detailed understanding of the structure and function of Drosophila larval nociceptive neural circuit could provide insights into the organization and operation of pain circuits in mammals and generate new knowledge to advance the development of treatment options for pain in humans.
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Affiliation(s)
- Jean-Christophe Boivin
- Department of Biology, McGill University, Montreal, QC, Canada
- Integrated Program in Neuroscience, McGill University, Montreal, QC, Canada
| | - Jiayi Zhu
- Department of Biology, McGill University, Montreal, QC, Canada
- Integrated Program in Neuroscience, McGill University, Montreal, QC, Canada
| | - Tomoko Ohyama
- Department of Biology, McGill University, Montreal, QC, Canada
- Alan Edwards Centre for Research on Pain, McGill University, Montreal, QC, Canada
- Correspondence: Tomoko Ohyama
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26
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Li QY, Duan YW, Zhou YH, Chen SX, Li YY, Zang Y. NLRP3-Mediated Piezo1 Upregulation in ACC Inhibitory Parvalbumin-Expressing Interneurons Is Involved in Pain Processing after Peripheral Nerve Injury. Int J Mol Sci 2022; 23:13035. [PMID: 36361825 PMCID: PMC9655876 DOI: 10.3390/ijms232113035] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 10/19/2022] [Accepted: 10/24/2022] [Indexed: 10/29/2023] Open
Abstract
The anterior cingulate cortex (ACC) is particularly critical for pain information processing. Peripheral nerve injury triggers neuronal hyper-excitability in the ACC and mediates descending facilitation to the spinal dorsal horn. The mechanically gated ion channel Piezo1 is involved in the transmission of pain information in the peripheral nervous system. However, the pain-processing role of Piezo1 in the brain is unknown. In this work, we found that spared (sciatic) nerve injury (SNI) increased Piezo1 protein levels in inhibitory parvalbumin (PV)-expressing interneurons (PV-INs) but not in glutaminergic CaMKⅡ+ neurons, in the bilateral ACC. A reduction in the number of PV-INs but not in the number of CaMKⅡ+ neurons and a significant reduction in inhibitory synaptic terminals was observed in the SNI chronic pain model. Further, observation of morphological changes in the microglia in the ACC showed their activated amoeba-like transformation, with a reduction in process length and an increase in cell body area. Combined with the encapsulation of Piezo1-positive neurons by Iba1+ microglia, the loss of PV-INs after SNI might result from phagocytosis by the microglia. In cellular experiments, administration of recombinant rat TNF-α (rrTNF) to the BV2 cell culture or ACC neuron primary culture elevated the protein levels of Piezo1 and NOD-like receptor (NLR) family pyrin domain containing 3 (NLRP3). The administration of the NLRP3 inhibitor MCC950 in these cells blocked the rrTNF-induced expression of caspase-1 and interleukin-1β (key downstream factors of the activated NLRP3 inflammasome) in vitro and reversed the SNI-induced Piezo1 overexpression in the ACC and alleviated SNI-induced allodynia in vivo. These results suggest that NLRP3 may be the key factor in causing Piezo1 upregulation in SNI, promoting an imbalance between ACC excitation and inhibition by inducing the microglial phagocytosis of PV-INs and, thereby, facilitating spinal pain transmission.
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Affiliation(s)
- Qiao-Yun Li
- Pain Research Center and Department of Physiology, Zhongshan Medical School of Sun Yat-sen University, 74 Zhongshan Road. 2, Guangzhou 510080, China
| | - Yi-Wen Duan
- Pain Research Center and Department of Physiology, Zhongshan Medical School of Sun Yat-sen University, 74 Zhongshan Road. 2, Guangzhou 510080, China
| | - Yao-Hui Zhou
- Pain Research Center and Department of Physiology, Zhongshan Medical School of Sun Yat-sen University, 74 Zhongshan Road. 2, Guangzhou 510080, China
| | - Shao-Xia Chen
- Department of Anesthesiology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, 651 Dongfeng Road East, Guangzhou 510060, China
| | - Yong-Yong Li
- Pain Research Center and Department of Physiology, Zhongshan Medical School of Sun Yat-sen University, 74 Zhongshan Road. 2, Guangzhou 510080, China
| | - Ying Zang
- Pain Research Center and Department of Physiology, Zhongshan Medical School of Sun Yat-sen University, 74 Zhongshan Road. 2, Guangzhou 510080, China
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