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Xu JP, Ouyang QW, Shao MJ, Ke H, Du H, Xu SC, Yang Q, Cui YR, Qu F. Manual acupuncture ameliorates inflammatory pain by upregulating adenosine A 3 receptor in complete Freund's adjuvant-induced arthritis rats. Int Immunopharmacol 2024; 133:112095. [PMID: 38678668 DOI: 10.1016/j.intimp.2024.112095] [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: 12/03/2023] [Revised: 04/06/2024] [Accepted: 04/12/2024] [Indexed: 05/01/2024]
Abstract
BACKGROUND Adenosine A3 receptor (A3R) exerts analgesic, anti-inflammatory, and anti-nociceptive effects. In this study, we determined the analgesic mechanism of manual acupuncture (MA) in rats with complete Freund's adjuvant (CFA)-induced arthritis and explored whether MA ameliorates inflammation in these rats by upregulating A3R. METHODS Sixty Sprague Dawley (SD) rats were randomly divided into the following groups: Control, CFA, CFA + MA, CFA + sham MA, CFA + MA + DMSO, CFA + MA + IB-MECA, and CFA + MA + Reversine groups. The arthritis rat model was induced by injecting CFA into the left ankle joints. Thereafter, the rats were subjected to MA (ST36 acupoint) for 3 days. The clinical indicators paw withdrawal latency (PWL), paw withdrawal threshold (PWT), and open field test (OFT) were used to determine the analgesic effect of MA. In addition, to explore the effect of A3R on inflammation after subjecting arthritis rats to MA, IB-MECA (A3R agonist) and Reversine (A3R antagonist) were injected into ST36 before MA. RESULTS MA ameliorated the pathological symptoms of CFA-induced arthritis, including the pain indicators PWL and PWT, number of rearing, total ambulatory distance, and activity trajectory. Furthermore, after MA, the mRNA and protein expression of A3R was upregulated in CFA-induced arthritis rats. In contrast, the protein levels of TNF-α, IL-1β, Rap1, and p-p65 were downregulated after MA. Interestingly, the A3R agonist and antagonist further downregulated and upregulated inflammatory cytokine expression, respectively, after MA. Furthermore, the A3R antagonist increased the degree of ankle swelling after MA. CONCLUSION MA can alleviate inflammatory pain by inhibiting the NF-κB signaling pathway via upregulating A3R expression of the superficial fascia of the ST36 acupoint site in CFA-induced arthritis rats.
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Affiliation(s)
- Jing-Ping Xu
- Department of Physiology, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi 330004, China
| | - Qian-Wen Ouyang
- Nanchang People's Hospital, Jiangxi Province Key Laboratory for Breast Diseases, Nanchang, Jiangxi 334000, China
| | - Mei-Juan Shao
- Department of Pharmacology, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi 330004, China
| | - Hong Ke
- Department of Physiology, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi 330004, China
| | - Hong Du
- Department of Pharmacology, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi 330004, China
| | - Shang-Cheng Xu
- Department of Pharmacology, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi 330004, China
| | - Qian Yang
- Department of Pharmacology, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi 330004, China
| | - Yan-Ru Cui
- Department of Physiology, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi 330004, China.
| | - Fei Qu
- Department of Pharmacology, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi 330004, China.
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Tavares ALDF, Reginato A, Neves M, Pradal LDA, Leal TSDS, Ribeiro LDFC, Menolli RA, Bertolini GRF. Analysis of Wistar Rats Submitted to a Gout Model, Treated with Double Cryotherapy Protocol. Ther Hypothermia Temp Manag 2021; 12:30-37. [PMID: 33904783 DOI: 10.1089/ther.2021.0001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Gout arthritis commonly affects joint regions by deposition of crystals, promoting functional damage mainly during periods of exacerbation. Cryotherapy is a commonly used resource to contain inflammatory processes, however, its use during a gout crisis is not yet well understood. Therefore, the objective was to evaluate the parameters of Wistar rats submitted to an experimental gout model and treated with dual cryotherapy protocol. Twenty-one male Wistar rats were used, separated into three groups: control group (CG), lesion group (LG), and lesion + cryotherapy group (LCG). Gout model induction was through intra-articular injection, with urate crystal solution, in the right knee and cryoimmersion treatment was performed for 20 minutes at a temperature of 5° ± 2°C. Seven evaluations and two treatment moments were performed, and the following parameters were analyzed: joint edema, grip strength, joint disability, motor function, and leukocyte migration through synovial lavage. In the statistical analysis we used SPSS 20.0 with Generalized Linear Models, with least significant difference posttest, always with 5% significance level. The treatment reduced edema, promoted strength recovery, and was effective in reducing total leukocytes in the synovial fluid. No difference was observed between the injured groups for joint disability and motor function. Cryotherapy promoted edema reduction and increased pelvic limb grip strength in Wistar rats during the acute period.
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Affiliation(s)
| | - Aline Reginato
- Universidade Estadual do Oeste do Paraná-Unioeste, Cascavel, Brazil
| | - Morgana Neves
- Universidade Estadual do Oeste do Paraná-Unioeste, Cascavel, Brazil
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Study on the expressions of NLRP3 gene transcript variants in peripheral blood monocytes of primary gout patients. Clin Rheumatol 2018; 37:2547-2555. [PMID: 29946988 DOI: 10.1007/s10067-018-4149-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 03/15/2018] [Accepted: 05/15/2018] [Indexed: 10/28/2022]
Abstract
It is well-known that NLRP3 is closely related to the onset of primary gout (PG). However, the relation between NLRP3 gene transcript variants and the occurrence of PG remains unclear. This study was undertaken to evaluate whether NLRP3 gene transcript variants are involved in the occurrence of PG. A total of 44 acute phase PG (APPG), 52 non-acute phase PG (NAPPG) male patients, and 30 male health control (HC) were involved in this study. We measured NLRP3 and its transcript variants 2, 3, 4, 5, and 1 + 6 expressions in the PBMCs, together with the level of IL-1β in the serum. Further, PBMCs of HC were stimulated with MSU crystals. The levels of NLRP3, NLRP3 gene transcript variants 2, 3, 4 mRNA, and protein expressions were significantly lower in the APPG and NAPPG groups than in the HC group (P < 0.05, respectively), and IL-1β expression was significantly higher in the APPG group than in the HC and NAPPG groups (P < 0.05, respectively). Levels of IL-1β and NLRP3-4 mRNA expressions were negatively correlated with APPG group (r = - 0.2828, P = 0.0252). After stimulating PBMCs of HC with MSU crystals, levels of NLRP3, NLRP3-4 mRNA, and NLRP3 protein expressions were reduced significantly (P < 0.05, respectively), and the level of IL-1β in MSU group was increased significantly (P < 0.05). Here, we show that NLRP3-4 transcript variant may be closely related to the occurrence of PG. Thus, NLRP3-4 gene transcript variant may provide a novel target for the diagnosis and therapy of PG.
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O’Brien WG, Ling HS, Zhao Z, Lee CC. New insights on the regulation of the adenine nucleotide pool of erythrocytes in mouse models. PLoS One 2017; 12:e0180948. [PMID: 28746349 PMCID: PMC5528878 DOI: 10.1371/journal.pone.0180948] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 06/13/2017] [Indexed: 11/18/2022] Open
Abstract
The observation that induced torpor in non-hibernating mammals could result from an increased AMP concentration in circulation led our investigation to reveal that the added AMP altered oxygen transport of erythrocytes. To further study the effect of AMP in regulation of erythrocyte function and systemic metabolism, we generated mouse models deficient in key erythrocyte enzymes in AMP metabolism. We have previously reported altered erythrocyte adenine nucleotide levels corresponding to altered oxygen saturation in mice deficient in both CD73 and AMPD3. Here we further investigate how these Ampd3-/-/Cd73-/- mice respond to the administered dose of AMP in comparison with the control models of single enzyme deficiency and wild type. We found that Ampd3-/-/Cd73-/- mice are more sensitive to AMP-induced hypometabolism than mice with a single enzyme deficiency, which are more sensitive than wild type. A dose-dependent rightward shift of erythrocyte p50 values in response to increasing amounts of extracellular AMP was observed. We provide further evidence for the direct uptake of AMP by erythrocytes that is insensitive to dipyridamole, a blocker for ENT1. The uptake of AMP by the erythrocytes remained linear at the highest concentration tested, 10mM. We also observed competitive inhibition of AMP uptake by ATP and ADP but not by the other nucleotides and metabolites tested. Importantly, our studies suggest that AMP uptake is associated with an erythrocyte ATP release that is partially sensitive to inhibition by TRO19622 and Ca++ ion. Taken together, our study suggests a novel mechanism by which erythrocytes recycle and maintain their adenine nucleotide pool through AMP uptake and ATP release.
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Affiliation(s)
- William G. O’Brien
- Department of Biochemistry and Molecular Biology, McGovern Medical School, University of Texas Health Science Center, Houston, Texas, United States of America
| | - Han Shawn Ling
- Department of Biochemistry and Molecular Biology, McGovern Medical School, University of Texas Health Science Center, Houston, Texas, United States of America
| | - Zhaoyang Zhao
- Department of Biochemistry and Molecular Biology, McGovern Medical School, University of Texas Health Science Center, Houston, Texas, United States of America
- * E-mail:
| | - Cheng Chi Lee
- Department of Biochemistry and Molecular Biology, McGovern Medical School, University of Texas Health Science Center, Houston, Texas, United States of America
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Zhang Y, O'Brien WG, Zhao Z, Lee CC. 5'-adenosine monophosphate mediated cooling treatment enhances ΔF508-Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) stability in vivo. J Biomed Sci 2015; 22:72. [PMID: 26335336 PMCID: PMC4559075 DOI: 10.1186/s12929-015-0178-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 08/20/2015] [Indexed: 12/26/2022] Open
Abstract
Background Gene mutations that produce misprocessed proteins are linked to many human disorders. Interestingly, some misprocessed proteins retained their biological function when stabilized by low temperature treatment of cultured cells in vitro. Here we investigate whether low temperature treatment in vivo can rescue misfolded proteins by applying 5’-AMP mediated whole body cooling to a Cystic Fibrosis (CF) mouse model carrying a mutant cystic fibrosis transmembrane conductance regulator (CFTR) with a deletion of the phenylalanine residue in position 508 (ΔF508-CFTR). Low temperature treatment of cultured cells was previously shown to be able to alleviate the processing defect of ΔF508-CFTR, enhancing its plasma membrane localization and its function in mediating chloride ion transport. Results Here, we report that whole body cooling enhanced the retention of ΔF508-CFTR in intestinal epithelial cells. Functional analysis based on β-adrenergic dependent salivary secretion and post-natal mortality rate revealed a moderate but significant improvement in treated compared with untreated CF mice. Conclusions Our findings demonstrate that temperature sensitive processing of mutant proteins can be responsive to low temperature treatment in vivo.
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Affiliation(s)
- Yueqiang Zhang
- Department of Biochemistry and Molecular Biology, University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - William G O'Brien
- Department of Biochemistry and Molecular Biology, University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Zhaoyang Zhao
- Department of Biochemistry and Molecular Biology, University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Cheng Chi Lee
- Department of Biochemistry and Molecular Biology, University of Texas Health Science Center at Houston, Houston, TX, 77030, USA.
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Sun J, Wei ZZ, Gu X, Zhang JY, Zhang Y, Li J, Wei L. Intranasal delivery of hypoxia-preconditioned bone marrow-derived mesenchymal stem cells enhanced regenerative effects after intracerebral hemorrhagic stroke in mice. Exp Neurol 2015; 272:78-87. [PMID: 25797577 DOI: 10.1016/j.expneurol.2015.03.011] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Revised: 03/10/2015] [Accepted: 03/13/2015] [Indexed: 12/11/2022]
Abstract
Intracerebral hemorrhagic stroke (ICH) causes high mortality and morbidity with very limited treatment options. Cell-based therapy has emerged as a novel approach to replace damaged brain tissues and promote regenerative processes. In this study we tested the hypothesis that intranasally delivered hypoxia-preconditioned BMSCs could reach the brain, promote tissue repair and improve functional recovery after ICH. Hemorrhagic stroke was induced in adult C57/B6 mice by injection of collagenase IV into the striatum. Animals were randomly divided into three groups: sham group, intranasal BMSC treatment group, and vehicle treatment group. BMSCs were pre-treated with hypoxic preconditioning (HP) and pre-labeled with Hoechst before transplantation. Behavior tests, including the mNSS score, rotarod test, adhesive removal test, and locomotor function evaluation were performed at varying days, up to 21days, after ICH to evaluate the therapeutic effects of BMSC transplantation. Western blots and immunohistochemistry were performed to analyze the neurotrophic effects. Intranasally delivered HP-BMSCs were identified in peri-injury regions. NeuN+/BrdU+ co-labeled cells were markedly increased around the hematoma region, and growth factors, including BDNF, GDNF, and VEGF were significantly upregulated in the ICH brain after BMSC treatment. The BMSC treatment group showed significant improvement in behavioral performance compared with the vehicle group. Our data also showed that intranasally delivered HP-BMSCs migrated to peri-injury regions and provided growth factors to increase neurogenesis after ICH. We conclude that intranasal administration of BMSC is an effective treatment for ICH, and that it enhanced neuroregenerative effects and promoted neurological functional recovery after ICH. Overall, the investigation supports the potential therapeutic strategy for BMSC transplantation therapy against hemorrhagic stroke.
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Affiliation(s)
- Jinmei Sun
- Department of Neurology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China; Laboratories of Stem Cell Biology and Neural Regeneration and Function Recovery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China; Department of Anesthesiology, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Zheng Zachory Wei
- Department of Neurology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China; Laboratories of Stem Cell Biology and Neural Regeneration and Function Recovery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China; Department of Anesthesiology, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Xiaohuan Gu
- Department of Anesthesiology, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - James Ya Zhang
- Department of Anesthesiology, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Yongbo Zhang
- Department of Neurology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China; Laboratories of Stem Cell Biology and Neural Regeneration and Function Recovery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Jimei Li
- Department of Neurology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China; Laboratories of Stem Cell Biology and Neural Regeneration and Function Recovery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China.
| | - Ling Wei
- Department of Neurology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China; Laboratories of Stem Cell Biology and Neural Regeneration and Function Recovery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China; Department of Anesthesiology, Emory University School of Medicine, Atlanta, GA 30322, USA; Department of Neurology, Emory University School of Medicine, Atlanta, GA 30322, USA.
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Wang Y, Zhang A, Lu S, Pan X, Jia D, Yu W, Jiang Y, Li X, Wang X, Zhang J, Hou L, Sun Y. Adenosine 5'-monophosphate-induced hypothermia inhibits the activation of ERK1/2, JNK, p38 and NF-κB in endotoxemic rats. Int Immunopharmacol 2014; 23:205-10. [PMID: 25218163 DOI: 10.1016/j.intimp.2014.09.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Revised: 09/01/2014] [Accepted: 09/02/2014] [Indexed: 11/29/2022]
Abstract
Many studies have shown that LPS mainly activates four signal transduction pathways to induce inflammation, namely the p38, ERK1/2, JNK and IKK/NF-κB pathways. Studies have demonstrated that 5'-AMP-induced hypothermia (AIH) exhibits high anti-inflammatory capabilities. In this study, we explore that how AIH inhibits the inflammatory response. Wistar rats were divided into five groups: a control group, an LPS group, a 5'-AMP pre-treatment group, a 5'-AMP post-treatment group and a 5'-AMP group. For each group, plasma and lung were collected from the rats at 6h and 12h after LPS injection. ELISA assays were used to detect plasma levels of CD14, CRP and MCP-1. Inflammatory pathway activation and TLR4 expression were assayed separately by Western blot analysis and immunohistochemistry. Our results showed that rats treated with AIH either before or after an LPS-challenge had a significant decrease in plasma levels of CD14, CRP and TLR4 compared with rats that received LPS only. Western blot analysis showed that AIH inhibited the activation of extracellular signal-regulated kinases (ERK) 1/2, p38, c-Jun N-terminal kinase (JNK) and NF-κB in inflammatory rats. Our study concluded that AIH attenuated LPS-induced inflammation mainly by inhibiting activation on the ERK1/2, p38, JNK and NF-κB signaling pathways.
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Affiliation(s)
- Yunlong Wang
- Gout Laboratory, The Affiliated Hospital of Medical College Qingdao University, Shandong Provincial Key Laboratory of Metabolic Diseases, 16 Jiangsu Road, Qingdao, China
| | - Aihua Zhang
- Department of Biochemistry, Medical College, Qingdao University, Qingdao, Shandong, China
| | - Shulai Lu
- Stomatological Department, Qingdao Municipal Hospital, Qingdao, China
| | - Xinting Pan
- ICU, The Affiliated Hospital of Medical College, 16 Jiangsu Road, Qingdao, China
| | - Dongmei Jia
- Pathology Department, Qingdao Municipal Hospital, Qingdao, China
| | - Wenjuan Yu
- Pathology Department, The Affiliated Hospital of Medical College Qingdao University, China
| | - Yanxia Jiang
- Pathology Department, The Affiliated Hospital of Medical College Qingdao University, China
| | - Xinde Li
- Gout Laboratory, The Affiliated Hospital of Medical College Qingdao University, Shandong Provincial Key Laboratory of Metabolic Diseases, 16 Jiangsu Road, Qingdao, China
| | - Xuefeng Wang
- Gout Laboratory, The Affiliated Hospital of Medical College Qingdao University, Shandong Provincial Key Laboratory of Metabolic Diseases, 16 Jiangsu Road, Qingdao, China
| | - Jidong Zhang
- Department of Cardiology, The Affiliated Hospital of Medical College Qingdao University, 16 Jiangsu Road, Qingdao, China
| | - Lin Hou
- Department of Biochemistry, Medical College, Qingdao University, Qingdao, Shandong, China.
| | - Yunbo Sun
- ICU, The Affiliated Hospital of Medical College, 16 Jiangsu Road, Qingdao, China.
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