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Park KT, Jo H, Jeon SH, Jeong K, Im M, Kim JW, Jung JP, Jung HC, Lee JH, Kim W. Analgesic Effect of Human Placenta Hydrolysate on CFA-Induced Inflammatory Pain in Mice. Pharmaceuticals (Basel) 2024; 17:1179. [PMID: 39338341 PMCID: PMC11435073 DOI: 10.3390/ph17091179] [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: 08/08/2024] [Revised: 08/30/2024] [Accepted: 09/05/2024] [Indexed: 09/30/2024] Open
Abstract
To evaluate the efficacy of human placenta hydrolysate (HPH) in a mice model of CFA-induced inflammatory pain. TNF-α, IL-1β, and IL-6 are key pro-inflammatory cytokine factors for relieving inflammatory pain. Therefore, this study investigates whether HPH suppresses CFA-induced pain and attenuates the inflammatory process by regulating cytokines. In addition, the relationship between neuropathic pain and HPH was established by staining GFAP and Iba-1 in mice spinal cord tissues. This study was conducted for a total of day 28, and inflammatory pain was induced in mice by injecting CFA into the right paw at day 0 and day 14, respectively. 100 μL of 20% glucose and polydeoxyribonucleotide (PDRN) and 100, 200, and 300 μL of HPH were administered intraperitoneally twice a week. In the CFA-induced group, cold and mechanical allodynia and pro-inflammatory cytokine factors in the spinal cord and plantar tissue were significantly increased. The five groups of drugs evenly reduced pain and gene expression of inflammatory factors, and particularly excellent effects were confirmed in the HPH 200 and 300 groups. Meanwhile, the expression of GFAP and Iba-1 in the spinal cord was increased by CFA administration but decreased by HPH administration, which was confirmed to suppress damage to peripheral ganglia. The present study suggests that HPH attenuates CFA-induced inflammatory pain through inhibition of pro-inflammatory cytokine factors and protection of peripheral nerves.
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Affiliation(s)
- Keun-Tae Park
- Department of Physiology, College of Korean Medicine, Kyung Hee University, Seoul 02453, Republic of Korea
- Korean Medicine-Based Drug Repositioning Cancer Research Center, College of Korean Medicine, Kyung Hee University, Seoul 02453, Republic of Korea
| | - Heejoon Jo
- Department of Physiology, College of Korean Medicine, Kyung Hee University, Seoul 02453, Republic of Korea
| | - So-Hyun Jeon
- Research and Development Center, Green Cross Wellbeing Corporation, Yongin 16950, Republic of Korea
| | - Kyeongsoo Jeong
- Research and Development Center, Green Cross Wellbeing Corporation, Yongin 16950, Republic of Korea
| | - Minju Im
- Research and Development Center, Green Cross Wellbeing Corporation, Yongin 16950, Republic of Korea
| | - Jae-Won Kim
- Research and Development Center, Green Cross Wellbeing Corporation, Yongin 16950, Republic of Korea
| | - Jong-Pil Jung
- Nuke Medical Society of Pain Research, Daejeon 35002, Republic of Korea
| | - Hoe Chang Jung
- Nuke Medical Society of Pain Research, Daejeon 35002, Republic of Korea
| | - Jae Hun Lee
- Nuke Medical Society of Pain Research, Daejeon 35002, Republic of Korea
| | - Woojin Kim
- Department of Physiology, College of Korean Medicine, Kyung Hee University, Seoul 02453, Republic of Korea
- Korean Medicine-Based Drug Repositioning Cancer Research Center, College of Korean Medicine, Kyung Hee University, Seoul 02453, Republic of Korea
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Jiang Z, Cai X, Yao X, Zhang S, Lan W, Jin Z, Tang F, Ma W, Yao X, Chen C, Lan T. The causal effect of cytokine cycling levels on osteoarthritis: a bidirectional Mendelian randomized study. Front Immunol 2024; 14:1334361. [PMID: 38274820 PMCID: PMC10808687 DOI: 10.3389/fimmu.2023.1334361] [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: 11/07/2023] [Accepted: 12/27/2023] [Indexed: 01/27/2024] Open
Abstract
Objective Osteoarthritis (OA) is the most prevalent joint disease globally, serving as a primary cause of pain and disability. However, the pathological processes underlying OA remain incompletely understood. Several studies have noted an association between cytokines and OA, yet the causal link between them remains ambiguous. This study aims to identify cytokines potentially causally related to OA using Mendelian randomization (MR) analysis, informing early clinical diagnosis and treatment decisions. Methods We conducted a genome-wide association study (GWAS) on 12 OA traits involving 177,517 cases and 649,173 controls from 9 international cohorts. For discovery MR analysis, we used 103 cytokines from two European populations as instrumental variables (IVs). Concurrently, another European population OA GWAS database (36,185 cases and 135,185 controls) was used to replicate MR analysis, employing the inverse variance weighted (IVW) method as the primary analytic approach. Additional methods tested included MR Egger, Weighted median, and Weighted mode. We merged the MR findings through meta-analysis. Heterogeneity testing, level pleiotropy testing (MR Egger intercept test and MRPRESSO), and sensitivity analysis via Leave One Out (LOO) were conducted to verify result robustness. Lastly, reverse MR analysis was performed. Results The meta-analysis merger revealed a correlation between CX3CL1 cycle levels and increased OA risk (OR=1.070, 95% CI: 1.040-1.110; P<0.010). We also observed associations between MCP4 (OR=0.930, 95% CI: 0.890-0.970; P<0.010) and CCL25 (OR=0.930, 95% CI: 0.890-0.970; P<0.010) with reduced OA risk. The sensitivity analysis results corroborate the robustness of these findings. Conclusion Our MR analysis indicates a potential causal relationship between CX3CL1, MCP4, CCL25, and OA risk changes. Further research is warranted to explore the influence of cytokines on OA development.
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Affiliation(s)
- Zong Jiang
- Second Clinical Medical College, Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Xin Cai
- Department of Rheumatology and Immunology, The First People's Hospital Of Guiyang, Guiyang, China
| | - Xiaoling Yao
- Second Clinical Medical College, Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Shaoqin Zhang
- Department of Rheumatology and Immunology, The First People's Hospital Of Guiyang, Guiyang, China
| | - Weiya Lan
- Second Clinical Medical College, Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Zexu Jin
- Department of Rheumatology and Immunology, The First People's Hospital Of Guiyang, Guiyang, China
| | - Fang Tang
- Department of Rheumatology and Immunology, The Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Wukai Ma
- Department of Rheumatology and Immunology, The Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Xueming Yao
- Department of Rheumatology and Immunology, The Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Changming Chen
- Department of Rheumatology and Immunology, The Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Tianzuo Lan
- Department of Rheumatology and Immunology, The First People's Hospital Of Guiyang, Guiyang, China
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Gao H, Chen Z, Halihaman B, Huang L, Wang Z, Ding X. Network Pharmacology and In vitro Experimental Verification to Explore the Mechanism of Chaiqin Qingning Capsule in the Treatment of Pain. Curr Pharm Des 2024; 30:278-294. [PMID: 38310568 DOI: 10.2174/0113816128280351240112044430] [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: 10/08/2023] [Revised: 12/28/2023] [Accepted: 01/05/2024] [Indexed: 02/06/2024]
Abstract
BACKGROUND Chaiqin Qingning capsule (CQQNC) has been used to relieve pain in practice. However, the active components, pain targets, and molecular mechanisms for pain control are unclear. OBJECTIVE To explore the active components and potential mechanisms of the analgesic effect of CQQNC through network pharmacology and in vitro experiments. METHODS The main active components and the corresponding targets of CQQNC were screened from the TCMSP and the SwissTargetPrediction databases. Pain-related targets were selected in the OMIM, Gene- Cards, and DrugBank databases. These targets were intersected to obtain potential analgesic targets. The analgesic targets were imported into the STRING and DAVID databases for protein-protein interaction (PPI), gene ontology (GO) function enrichment and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses. Cytoscape software (V3.7.1) was used to construct an active component-intersection network. Finally, the key components were docked with the core targets. The analgesic mechanism of CQQNC was verified by RAW264.7 cell experiment. RESULTS 30 active CQQNC components, 617 corresponding targets, and 3,214 pain-related target genes were found. The main active components were quercetin, kaempferol, and chenodeoxycholic acid etc. The key targets were ALB, AKT1, TNF, IL6, TP53, IL1B, and SRC. CQQNC can exert an analgesic effect through PI3K-Akt, MAPK signaling pathways, etc. Molecular docking showed that these active components had good binding activities with key targets. The results of in vitro experiments showed that CQQNC could exert antiinflammatory and analgesic effects through MAPK/AKT/NF-kB signaling pathways. CONCLUSION CQQNC exerts pain control through inhibiting MAPK/AKT/NF-kB signaling pathways.
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Affiliation(s)
- Hongjin Gao
- Department of Clinical Pharmacy, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Zhengwei Chen
- Department of Clinical Pharmacy, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Buliduhong Halihaman
- Department of Clinical Pharmacy, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Lianzhan Huang
- Department of Clinical Pharmacy, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Zhen Wang
- Department of Clinical Pharmacy, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Xuansheng Ding
- Department of Clinical Pharmacy, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Precision Medicine Laboratory, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211198, China
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Pan HT, Xi ZQ, Wei XQ, Wang K. A network pharmacology approach to predict potential targets and mechanisms of " Ramulus Cinnamomi (cassiae) - Paeonia lactiflora" herb pair in the treatment of chronic pain with comorbid anxiety and depression. Ann Med 2022; 54:413-425. [PMID: 35098831 PMCID: PMC8812742 DOI: 10.1080/07853890.2022.2031268] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Traditional Chinese medicine (TCM) prescriptions have multiple bioactive properties. "Gui Zhi-Shao Yao" herb pair is widely used to treat chronic pain (CP), as well as anxiety and depression. However, its related targets and underlying mechanisms have not been deciphered. METHODS In this study, the network pharmacology method was used to explore the bioactive components and targets of "Gui Zhi-Shao Yao" herb pair and further elucidate its potential biological mechanisms of action in the treatment of CP with comorbid anxiety disorder (AD) and mental depression (MD). RESULTS Following a series of analyses, we identified 15 active compounds, hitting 130 potential targets. After the intersections the targets of this herb pair and CP, AD and MD - sorted by the value of degree - nine targets were identified as the vital ones: Akt1, IL6, TNF, PTGS2, JUN, CASP3, MAPK8, PPARγ and NOS3. Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis results demonstrated 11 pathways, such as AGE-RAGE signalling pathway, IL-17 signalling pathway, TNF signalling pathway, which primarily participate in the pathological processes. CONCLUSIONS This study preliminarily predicted and verified the pharmacological and molecular mechanisms of "Gui Zhi-Shao Yao" herb pair for treating CP with comorbid AD and MD from a holistic perspective. In vivo and in vitro experiments will be required to further investigate the mechanisms.KEY MESSAGEA network pharmacology approach was applied to identify key targets and molecular mechanisms.Nine targets were regarded as the vital targets for chronic pain with comorbid anxiety and depression.Predicted 11 pathways were the potential therapy targets and pharmacological mechanism of "Gui Zhi-Shao Yao" herb pair.
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Affiliation(s)
- Hao-Tian Pan
- Acupuncture Anesthesia Clinical Research Institute, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zi-Qi Xi
- Acupuncture Anesthesia Clinical Research Institute, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xu-Qiang Wei
- Acupuncture Anesthesia Clinical Research Institute, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ke Wang
- Acupuncture Anesthesia Clinical Research Institute, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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Xiang C, Chen C, Li X, Wu Y, Xu Q, Wen L, Xiong W, Liu Y, Zhang T, Dou C, Ding X, Hu L, Chen F, Yan Z, Liang L, Wei G. Computational approach to decode the mechanism of curcuminoids against neuropathic pain. Comput Biol Med 2022; 147:105739. [PMID: 35763932 DOI: 10.1016/j.compbiomed.2022.105739] [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: 03/11/2022] [Revised: 06/09/2022] [Accepted: 06/11/2022] [Indexed: 11/19/2022]
Abstract
BACKGROUND Curcumin (CUR), demethoxycurcumin (DMC) and bisdemethoxycurcumin (BDMC) are the main components of turmeric that commonly used to treat neuropathic pain (NP). However, the mechanism of the therapy is not sufficiently clarified. Herein, network pharmacology, molecular docking and molecular dynamics (MD) approaches were used to investigate the mechanism of curcuminoids for NP treatment. METHODS Active targets of curcuminoids were obtained from the Swiss Target database, and NP-related targets were retrieved from GeneCards, OMIM, Drugbank and TTD databases. A protein-protein interaction (PPI) network was built to screen the core targets. Furthermore, DAVID was used for GO and KEGG pathway enrichment analyses. Interactions between potential targets and curcuminoids were assessed by molecular docking and the MD simulations were run for 100ns to validate the docking results on the top six complexes. RESULTS CUR, DMC, and BDMC had 100, 99 and 100 targets respectively. After overlapping with NP there were 33, 33 and 31 targets respectively. PPI network analysis of TOP 10 core targets, TNF, GSK3β were common targets of curcuminoids. Molecular docking and MD results indicated that curcuminoids bind strongly with the core targets. The GO and KEGG showed that curcuminoids regulated nitrogen metabolism, the serotonergic synapse and ErbB signaling pathway to alleviate NP. Furthermore, specific targets in these three compounds were also analysed at the same time. CONCLUSIONS This study systematically explored and compared the anti-NP mechanism of curcuminoids, providing a novel perspective for their utilization.
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Affiliation(s)
- Chunxiao Xiang
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China.
| | - Chunlan Chen
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China.
| | - Xi Li
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China.
| | - Yating Wu
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China.
| | - Qing Xu
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China.
| | - Lingmiao Wen
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China.
| | - Wei Xiong
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China.
| | - Yanjun Liu
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China.
| | - Tinglan Zhang
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China.
| | - Chongyang Dou
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China.
| | - Xian Ding
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China.
| | - Lin Hu
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China.
| | - Fangfang Chen
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China.
| | - Zhiyong Yan
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China.
| | - Lingli Liang
- Department of Physiology and Pathophysiology, Institute of Neuroscience, Translational Medicine Institute, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shanxi, China.
| | - Guihua Wei
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China.
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Vermeer CJC, Hiensch AE, Cleenewerk L, May AM, Eijkelkamp N. Neuro-immune interactions in paclitaxel-induced peripheral neuropathy. Acta Oncol 2021; 60:1369-1382. [PMID: 34313190 DOI: 10.1080/0284186x.2021.1954241] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Paclitaxel is a taxane-based chemotherapeutic agent used as a treatment in breast cancer. There is no effective prevention or treatment strategy for the most common side effect of peripheral neuropathy. In this manuscript, we reviewed the molecular mechanisms that contribute to paclitaxel-induced peripheral neuropathy (PIPN) with an emphasis on immune-related processes. METHODS A systematic search of the literature was conducted in PubMed, EMBASE and Cochrane Library. The SYRCLE's risk of bias tool was used to assess internal validity. RESULTS 156 studies conducted with rodent models were included. The risk of bias was high due to unclear methodology. Paclitaxel induces changes in myelinated axons, mitochondrial dysfunction, and mechanical hypersensitivity by affecting ion channels expression and function and facilitating spinal transmission. Paclitaxel-induced inflammatory responses are important contributors to PIPN. CONCLUSION Immune-related processes are an important mechanism contributing to PIPN. Studies in humans that validate these mechanistic data are highly needed to facilitate the development of therapeutic strategies.
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Affiliation(s)
- Cornelia J. C. Vermeer
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Anouk E. Hiensch
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Laurence Cleenewerk
- Center of Translational Immunology (CTI), University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Anne M. May
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Niels Eijkelkamp
- Center of Translational Immunology (CTI), University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
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Sensory neuron-associated macrophages as novel modulators of neuropathic pain. Pain Rep 2021; 6:e873. [PMID: 33981924 PMCID: PMC8108583 DOI: 10.1097/pr9.0000000000000873] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 10/13/2020] [Accepted: 10/19/2020] [Indexed: 12/28/2022] Open
Abstract
The peripheral nervous system comprises an infinity of neural networks that act in the communication between the central nervous system and the most diverse tissues of the body. Along with the extension of the primary sensory neurons (axons and cell bodies), a population of resident macrophages has been described. These newly called sensory neuron-associated macrophages (sNAMs) seem to play an essential role in physiological and pathophysiological processes, including infection, autoimmunity, nerve degeneration/regeneration, and chronic neuropathic pain. After different types of peripheral nerve injury, there is an increase in the number and activation of sNAMs in the sciatic nerve and sensory ganglia. The activation of sNAMs and their participation in neuropathic pain development depends on the stimulation of pattern recognition receptors such as Toll-like receptors and Nod-like receptors, chemokines/cytokines, and microRNAs. On activation, sNAMs trigger the production of critical inflammatory mediators such as proinflammatory cytokines (eg, TNF and IL-1β) and reactive oxygen species that can act in the amplification of primary sensory neurons sensitization. On the other hand, there is evidence that sNAMs can produce antinociceptive mediators (eg, IL-10) that counteract neuropathic pain development. This review will present the cellular and molecular mechanisms behind the participation of sNAMs in peripheral nerve injury-induced neuropathic pain development. Understanding how sNAMs are activated and responding to nerve injury can help set novel targets for the control of neuropathic pain.
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Fumagalli G, Monza L, Cavaletti G, Rigolio R, Meregalli C. Neuroinflammatory Process Involved in Different Preclinical Models of Chemotherapy-Induced Peripheral Neuropathy. Front Immunol 2021; 11:626687. [PMID: 33613570 PMCID: PMC7890072 DOI: 10.3389/fimmu.2020.626687] [Citation(s) in RCA: 73] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 12/21/2020] [Indexed: 12/12/2022] Open
Abstract
Peripheral neuropathies are characterized by nerves damage and axonal loss, and they could be classified in hereditary or acquired forms. Acquired peripheral neuropathies are associated with several causes, including toxic agent exposure, among which the antineoplastic compounds are responsible for the so called Chemotherapy-Induced Peripheral Neuropathy (CIPN). Several clinical features are related to the use of anticancer drugs which exert their action by affecting different mechanisms and structures of the peripheral nervous system: the axons (axonopathy) or the dorsal root ganglia (DRG) neurons cell body (neuronopathy/ganglionopathy). In addition, antineoplastic treatments may affect the blood brain barrier integrity, leading to cognitive impairment that may be severe and long-lasting. CIPN may affect patient quality of life leading to modification or discontinuation of the anticancer therapy. Although the mechanisms of the damage are not completely understood, several hypotheses have been proposed, among which neuroinflammation is now emerging to be relevant in CIPN pathophysiology. In this review, we consider different aspects of neuro-immune interactions in several CIPN preclinical studies which suggest a critical connection between chemotherapeutic agents and neurotoxicity. The features of the neuroinflammatory processes may be different depending on the type of drug (platinum derivatives, taxanes, vinca alkaloids and proteasome inhibitors). In particular, recent studies have demonstrated an involvement of the immune response (both innate and adaptive) and the stimulation and secretion of mediators (cytokines and chemokines) that may be responsible for the painful symptoms, whereas glial cells such as satellite and Schwann cells might contribute to the maintenance of the neuroinflammatory process in DRG and axons respectively. Moreover, neuroinflammatory components have also been shown in the spinal cord with microglia and astrocytes playing an important role in CIPN development. Taking together, better understanding of these aspects would permit the development of possible strategies in order to improve the management of CIPN.
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Affiliation(s)
- Giulia Fumagalli
- Experimental Neurology Unit, School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy.,NeuroMI (Milan Center for Neuroscience), University of Milano-Bicocca, Monza, Italy
| | - Laura Monza
- Experimental Neurology Unit, School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy.,NeuroMI (Milan Center for Neuroscience), University of Milano-Bicocca, Monza, Italy
| | - Guido Cavaletti
- Experimental Neurology Unit, School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy.,NeuroMI (Milan Center for Neuroscience), University of Milano-Bicocca, Monza, Italy
| | - Roberta Rigolio
- Experimental Neurology Unit, School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy.,NeuroMI (Milan Center for Neuroscience), University of Milano-Bicocca, Monza, Italy
| | - Cristina Meregalli
- Experimental Neurology Unit, School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy.,NeuroMI (Milan Center for Neuroscience), University of Milano-Bicocca, Monza, Italy
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An Investigation of the Molecular Mechanisms Underlying the Analgesic Effect of Jakyak-Gamcho Decoction: A Network Pharmacology Study. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:6628641. [PMID: 33343676 PMCID: PMC7732394 DOI: 10.1155/2020/6628641] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/05/2020] [Accepted: 11/24/2020] [Indexed: 12/20/2022]
Abstract
Herbal drugs have drawn substantial interest as effective analgesic agents; however, their therapeutic mechanisms remain to be fully understood. To address this question, we performed a network pharmacology study to explore the system-level mechanisms that underlie the analgesic activity of Jakyak-Gamcho decoction (JGd; Shaoyao-Gancao-Tang in Chinese and Shakuyaku-Kanzo-To in Japanese), an herbal prescription consisting of Paeonia lactiflora Pallas and Glycyrrhiza uralensis Fischer. Based on comprehensive information regarding the pharmacological and chemical properties of the herbal constituents of JGd, we identified 57 active chemical compounds and their 70 pain-associated targets. The JGd targets were determined to be involved in the regulation of diverse biological activities as follows: calcium- and cytokine-mediated signalings, calcium ion concentration and homeostasis, cellular behaviors of muscle and neuronal cells, inflammatory response, and response to chemical, cytokine, drug, and oxidative stress. The targets were further enriched in various pain-associated signalings, including the PI3K-Akt, estrogen, ErbB, neurotrophin, neuroactive ligand-receptor interaction, HIF-1, serotonergic synapse, JAK-STAT, and cAMP pathways. Thus, these data provide a systematic basis to understand the molecular mechanisms underlying the analgesic activity of herbal drugs.
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Ling YJ, Ding TY, Dong FL, Gao YJ, Jiang BC. Intravenous Administration of Triptonide Attenuates CFA-Induced Pain Hypersensitivity by Inhibiting DRG AKT Signaling Pathway in Mice. J Pain Res 2020; 13:3195-3206. [PMID: 33293856 PMCID: PMC7718987 DOI: 10.2147/jpr.s275320] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 11/19/2020] [Indexed: 01/11/2023] Open
Abstract
Background Currently, medical treatment of inflammatory pain is limited by a lack of safe and effective therapies. Triptonide (TPN), a major component of Tripterygium wilfordii Hook.f. with low toxicity, has been shown to have good anti-inflammatory and neuroprotective effects. The present study aims to investigate the effects of TPN on chronic inflammatory pain. Materials and Methods Inflammatory pain was induced by intraplantar injection of complete Freund’s adjuvant (CFA). TPN’s three different doses were intravenously administered to compare the analgesic efficacy: 0.1 mg/kg, 0.5 mg/kg, and 2.0 mg/kg. The foot swelling was quantitated by measuring paw volume. Mechanical allodynia and thermal hyperalgesia were assessed with von Frey filament testing and Hargreaves’ test, respectively. Western blots, qRT–PCR and immunofluorescence tests were used to analyze the expression of pAKT, tumor necrosis factor-α (TNF-α), interleukin 1 beta (IL-1β), and interleukin 6 (IL-6). Two AKT inhibitors, AKT inhibitor Ⅳ and MK-2206, were used to examine AKT’s effects on pain behavior and cytokines expression. Results Intravenous treatment with TPN attenuated CFA-induced paw edema, mechanical allodynia, and thermal hyperalgesia. Western blotting and immunofluorescence results showed that CFA induced AKT activation in the dorsal root ganglion (DRG) neurons. However, these effects were suppressed by treatment with TPN. Furthermore, TPN treatment inhibited CFA-induced increase of pro-inflammatory cytokines, including TNF-α, IL-1β, and IL-6. Consistent with the in vivo data, TPN inhibited LPS-induced Akt phosphorylation and inflammatory mediator production in ND7/23 cells. Finally, intrathecal treatment with AKT inhibitor Ⅳ or MK-2206, attenuated CFA-induced mechanical allodynia and thermal hyperalgesia, and simultaneously decreased the mRNA expression of TNF-α, IL-1β, and IL-6 in DRG. Conclusion These data indicate that TPN attenuates CFA-induced pain potentially via inhibiting AKT-mediated pro-inflammatory cytokines production in DRG. TPN may be used for the treatment of chronic inflammatory pain.
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Affiliation(s)
- Yue-Juan Ling
- Institute of Pain Medicine, Nantong University, Nantong, Jiangsu 226019, People's Republic of China.,Institute of Special Environmental Medicine, Nantong University, Nantong, Jiangsu 226019, People's Republic of China
| | - Ting-Yu Ding
- Institute of Pain Medicine, Nantong University, Nantong, Jiangsu 226019, People's Republic of China.,Institute of Special Environmental Medicine, Nantong University, Nantong, Jiangsu 226019, People's Republic of China
| | - Fu-Lu Dong
- School of Medicine, Nantong University, Nantong, Jiangsu, People's Republic of China
| | - Yong-Jing Gao
- Institute of Pain Medicine, Nantong University, Nantong, Jiangsu 226019, People's Republic of China.,Institute of Special Environmental Medicine, Nantong University, Nantong, Jiangsu 226019, People's Republic of China
| | - Bao-Chun Jiang
- Institute of Pain Medicine, Nantong University, Nantong, Jiangsu 226019, People's Republic of China.,Institute of Special Environmental Medicine, Nantong University, Nantong, Jiangsu 226019, People's Republic of China
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Chen Y, Zhang H, Li F, Wang X. Inhibition of CX3C receptor 1-mediated autophagy in macrophages alleviates pulmonary fibrosis in hyperoxic lung injury. Life Sci 2020; 259:118286. [PMID: 32810508 DOI: 10.1016/j.lfs.2020.118286] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 08/04/2020] [Accepted: 08/12/2020] [Indexed: 02/07/2023]
Abstract
AIMS To investigate the role of CX3CR1 in hyperoxic lung injury induced pulmonary fibrosis. MATERIALS AND METHODS Hyperoxic lung injured mice were used as the disease model. Pulmonary fibrosis was determined by H&E and Masson's staining. Autophagy was investigated by western blot, immunofluorescence staining, and transmission electron microscopy. KEY FINDINGS We observed that increased CX3CR1 expression corresponded with increased pulmonary fibrosis. Additionally, silencing of CX3CR1 significantly alleviated the fibrosis when compared to the control. We observed that exposure of mouse to hyperoxic environment increased macrophage levels along with an increased CD11b expression in the lung tissues. Subsequently, we also observed an increased expression of LC3-II and decreased p62 expression in hyperoxic mice models, suggesting the potential role of hyperoxia induced autophagy. CD11b and LC3/CX3CR1 were expressed and co-localized in a manner indicating CX3CR1 indeed does regulate macrophage autophagy in the hyperoxic lung injury model. We observed a decrease in hyperoxia-associated fibrosis, along with a decrease in autophagy when we used 3-MA (autophagy inhibitor) in our hyperoxic lung injury model. To elucidate the pathway through which CX3CR1 regulated autophagy, we further analyzed the Akt1 pathway. Our experimental results indicated that the Akt1 inhibitor (A-674563) did significantly decrease macrophage autophagy and fibrosis in hyperoxic mice models. SIGNIFICANCE Thus, our data indicates a novel role of CX3CR1 in regulation of macrophage autophagy and promotion of pulmonary fibrosis in hyperoxic lung injured mice.
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Affiliation(s)
- Yuqing Chen
- Department of Respiratory, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, 100 Haining Road, Shanghai 200080, China.
| | - Hai Zhang
- Department of Respiratory, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, 100 Haining Road, Shanghai 200080, China
| | - Feng Li
- Department of Respiratory, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, 100 Haining Road, Shanghai 200080, China
| | - Xiaohui Wang
- Department of Clinical Pharmacology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, 100 Haining Road, Shanghai 200080, China
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12
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Mitchell R, Mikolajczak M, Kersten C, Fleetwood-Walker S. ErbB1-dependent signalling and vesicular trafficking in primary afferent nociceptors associated with hypersensitivity in neuropathic pain. Neurobiol Dis 2020; 142:104961. [DOI: 10.1016/j.nbd.2020.104961] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 05/26/2020] [Accepted: 06/08/2020] [Indexed: 02/06/2023] Open
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13
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Lehner C, Spitzer G, Gehwolf R, Wagner A, Weissenbacher N, Deininger C, Emmanuel K, Wichlas F, Tempfer H, Traweger A. Tenophages: a novel macrophage-like tendon cell population expressing CX3CL1 and CX3CR1. Dis Model Mech 2019; 12:dmm.041384. [PMID: 31744815 PMCID: PMC6918766 DOI: 10.1242/dmm.041384] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Accepted: 11/11/2019] [Indexed: 12/29/2022] Open
Abstract
Tendon disorders frequently occur and recent evidence has clearly implicated the presence of immune cells and inflammatory events during early tendinopathy. However, the origin and properties of these cells remain poorly defined. Therefore, the aim of this study was to determine the presence of cells in healthy rodent and human tendon tissue fulfilling macrophage-like functions. Using various transgenic reporter mouse models, we demonstrate the presence of tendon-resident cells in the dense matrix of the tendon core expressing the fractalkine (Fkn) receptor CX3CR1 and its cognate ligand CX3CL1/Fkn. Pro-inflammatory stimulation of 3D tendon-like constructs in vitro resulted in a significant increase in the expression of IL-1β, IL-6, Mmp3, Mmp9, CX3CL1 and epiregulin, which has been reported to contribute to inflammation, wound healing and tissue repair. Furthermore, we demonstrate that inhibition of the Fkn receptor blocked tendon cell migration in vitro, and show the presence of CX3CL1/CX3CR1/EREG-expressing cells in healthy human tendons. Taken together, we demonstrate the presence of CX3CL1+/CX3CR1+ 'tenophages' within the healthy tendon proper, which potentially fulfill surveillance functions in tendons.This article has an associated First Person interview with the first author of the paper.
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Affiliation(s)
- Christine Lehner
- Institute of Tendon and Bone Regeneration, Spinal Cord Injury and Tissue Regeneration Center Salzburg, Paracelsus Medical University, 5020 Salzburg, Austria.,Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Gabriel Spitzer
- Institute of Tendon and Bone Regeneration, Spinal Cord Injury and Tissue Regeneration Center Salzburg, Paracelsus Medical University, 5020 Salzburg, Austria.,Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Renate Gehwolf
- Institute of Tendon and Bone Regeneration, Spinal Cord Injury and Tissue Regeneration Center Salzburg, Paracelsus Medical University, 5020 Salzburg, Austria.,Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Andrea Wagner
- Institute of Tendon and Bone Regeneration, Spinal Cord Injury and Tissue Regeneration Center Salzburg, Paracelsus Medical University, 5020 Salzburg, Austria.,Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Nadja Weissenbacher
- Institute of Tendon and Bone Regeneration, Spinal Cord Injury and Tissue Regeneration Center Salzburg, Paracelsus Medical University, 5020 Salzburg, Austria.,Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Christian Deininger
- Institute of Tendon and Bone Regeneration, Spinal Cord Injury and Tissue Regeneration Center Salzburg, Paracelsus Medical University, 5020 Salzburg, Austria.,Department of Orthopedics and Traumatology, Paracelsus Medical University, 5020 Salzburg, Austria
| | - Katja Emmanuel
- Department of Orthopedics and Traumatology, Paracelsus Medical University, 5020 Salzburg, Austria
| | - Florian Wichlas
- Department of Orthopedics and Traumatology, Paracelsus Medical University, 5020 Salzburg, Austria
| | - Herbert Tempfer
- Institute of Tendon and Bone Regeneration, Spinal Cord Injury and Tissue Regeneration Center Salzburg, Paracelsus Medical University, 5020 Salzburg, Austria .,Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Andreas Traweger
- Institute of Tendon and Bone Regeneration, Spinal Cord Injury and Tissue Regeneration Center Salzburg, Paracelsus Medical University, 5020 Salzburg, Austria.,Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
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14
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Möser CV, Möller M, Fleck SC, Thomas D, Geisslinger G, Niederberger E. Inhibition of the protein kinase IKKepsilon attenuates neuropathic pain in mice. Neuropharmacology 2018; 146:198-211. [PMID: 30528326 DOI: 10.1016/j.neuropharm.2018.12.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 11/09/2018] [Accepted: 12/05/2018] [Indexed: 12/30/2022]
Abstract
Inhibitor-kappaB kinase epsilon (IKKε, Ikbke) constitutes an NF-κB activating kinase with high homology to the classical I-κB kinase subunits, IKKα and IKKβ. It is expressed in nociceptive neurons in the spinal cord and in dorsal root ganglia (DRG) and involved in inflammatory nociception. Under inflammatory conditions, IKKε deficient mice show significantly less nociceptive behavior in comparison to wild type mice associated with reduced activation of NF-κB and attenuated NF-κB-dependent gene expression. The role of IKKε in neuropathic pain has not been investigated so far. We applied the spared nerve injury (SNI) model of neuropathic pain in mice and found an increased expression of IKKε in the spinal cord, the DRGs and the sciatic nerve after induction of neuropathy. Genetic depletion of IKKε or pharmacological inhibition by amlexanox led to a significant reduction of mechanical hyperalgesia and cold allodynia in comparison to control mice. Transcription factor ELISA indicated that the effects are mediated by reduced activation of NF-κB. Furthermore, immunofluorescence staining, qPCR and Western Blot analyses revealed that the decreased pain-like behavior was associated with a reduced activation of microglia, diminished expression of c-fos as well as a decreased activation of MAP-Kinases. In summary, we conclude that IKKε modulates mechanisms of neuropathic pain by activating NF-κB. The administration of IKKε inhibitors might therefore constitute a new and promising approach for the therapy of neuropathic pain.
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Affiliation(s)
- Christine V Möser
- pharmazentrum frankfurt/ZAFES, Institut für Klinische Pharmakologie, Klinikum der Goethe-Universität Frankfurt, Theodor Stern Kai 7, 60590, Frankfurt am Main, Germany.
| | - Moritz Möller
- pharmazentrum frankfurt/ZAFES, Institut für Klinische Pharmakologie, Klinikum der Goethe-Universität Frankfurt, Theodor Stern Kai 7, 60590, Frankfurt am Main, Germany.
| | - Stefanie C Fleck
- Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Project Group for Translational Medicine & Pharmacology TMP, 60596, Frankfurt am Main, Germany.
| | - Dominique Thomas
- pharmazentrum frankfurt/ZAFES, Institut für Klinische Pharmakologie, Klinikum der Goethe-Universität Frankfurt, Theodor Stern Kai 7, 60590, Frankfurt am Main, Germany.
| | - Gerd Geisslinger
- pharmazentrum frankfurt/ZAFES, Institut für Klinische Pharmakologie, Klinikum der Goethe-Universität Frankfurt, Theodor Stern Kai 7, 60590, Frankfurt am Main, Germany; Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Project Group for Translational Medicine & Pharmacology TMP, 60596, Frankfurt am Main, Germany.
| | - Ellen Niederberger
- pharmazentrum frankfurt/ZAFES, Institut für Klinische Pharmakologie, Klinikum der Goethe-Universität Frankfurt, Theodor Stern Kai 7, 60590, Frankfurt am Main, Germany.
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Hou SM, Hou CH, Liu JF. CX3CL1 promotes MMP-3 production via the CX3CR1, c-Raf, MEK, ERK, and NF-κB signaling pathway in osteoarthritis synovial fibroblasts. Arthritis Res Ther 2017; 19:282. [PMID: 29268768 PMCID: PMC5740560 DOI: 10.1186/s13075-017-1487-6] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Accepted: 11/28/2017] [Indexed: 12/24/2022] Open
Abstract
Background Osteoarthritis (OA) is a degenerative joint disease that affects the cartilage, synovium, and subchondral bone and is the leading cause of disability in older populations. Specific diagnostic biomarkers are lacking; hence, treatment options for OA are limited. Synovial inflammation is very common in OA joints and has been associated with both OA’s symptoms and pathogenesis. Confirming the role of the synovium in OA pathogenesis is a promising strategy for mitigating the symptoms and progression of OA. CX3CL1 is the only member of the CX3C class of chemokines that combines the properties of chemoattractants and adhesion molecules. CX3CL1 levels in the synovium and serum were both discovered to be positively associated with OA pathogenesis. CX3CL1 and its receptor CX3CR1 belong to a family of G protein-coupled receptors. Matrix metalloproteinases (MMPs), which are responsible for matrix degradation, play a crucial role in OA progression. The relationship between CX3CL1 and MMPs in the pathophysiology of OA is still unclear. Methods CX3CL1-induced MMP-3 production was assessed with quantitative real-time PCR and ELISA. The mechanisms of action of CX3CL1 in different signaling pathways were studied using western blot analysis, quantitative real-time PCR and ELISA. Neutralization antibodies of integrin were achieved to block the CX3CR1 signaling pathway. Luciferase assays were used to study NF-κB promoter activity. Results We investigated the signaling pathway involved in CX3CL1-induced MMP-3 production in osteoarthritis synovial fibroblasts (OASFs). CX3CL1 was found to induce MMP-3 production in a concentration-dependent and time-dependent manner. Using pharmacological inhibitors and CX3CR1 small interfering RNA to block CX3CR1 revealed that the CX3CR1 receptor was involved in the CX3CL1-mediated upregulation of MMP-3. CX3CL1-mediated MMP-3 production was attenuated by c-Raf inhibitors (GW5074) and MEK/ERK inhibitors (PD98059 and U0126). The OASFs were stimulated using CX3CL1-activated p65 phosphorylation. Conclusions Our results demonstrate that CX3CL1 activates c-Raf, MEK, ERK, and NF-κB on the MMP-3 promoter through CX3CR1, thus contributing to cartilage destruction during OA.
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Affiliation(s)
- Sheng-Mou Hou
- Department of Orthopedic Surgery, Shin Kong Wu Ho-Su Memorial Hospital, No. 95, Wen Chang Road, Taipei, 111, Taiwan
| | - Chun-Han Hou
- Department of Orthopedic Surgery, National Taiwan University Hospital, No. 1, Jen-Ai Road, Taipei, 100, Taiwan
| | - Ju-Fang Liu
- Central Laboratory, Shin-Kong Wu Ho-Su Memorial Hospital, No. 95, Wenchang Road, Shilin, Taipei, 111, Taiwan.
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