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Thompson CL, Hopkins T, Bevan C, Screen HRC, Wright KT, Knight MM. Human vascularised synovium-on-a-chip: a mechanically stimulated, microfluidic model to investigate synovial inflammation and monocyte recruitment. Biomed Mater 2023; 18:065013. [PMID: 37703884 DOI: 10.1088/1748-605x/acf976] [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: 05/03/2023] [Accepted: 09/13/2023] [Indexed: 09/15/2023]
Abstract
Healthy synovium is critical for joint homeostasis. Synovial inflammation (synovitis) is implicated in the onset, progression and symptomatic presentation of arthritic joint diseases such as rheumatoid arthritis and osteoarthritis. Thus, the synovium is a promising target for the development of novel, disease-modifying therapeutics. However, target exploration is hampered by a lack of good pre-clinical models that accurately replicate human physiology and that are developed in a way that allows for widespread uptake. The current study presents a multi-channel, microfluidic, organ-on-a-chip (OOAC) model, comprising a 3D configuration of the human synovium and its associated vasculature, with biomechanical and inflammatory stimulation, built upon a commercially available OOAC platform. Healthy human fibroblast-like synoviocytes (hFLS) were co-cultured with human umbilical vein endothelial cells (HUVECs) with appropriate matrix proteins, separated by a flexible, porous membrane. The model was developed within the Emulate organ-chip platform enabling the application of physiological biomechanical stimulation in the form of fluid shear and cyclic tensile strain. The hFLS exhibited characteristic morphology, cytoskeletal architecture and matrix protein deposition. Synovial inflammation was initiated through the addition of interleukin-1β(IL-1β) into the synovium channel resulting in the increased secretion of inflammatory and catabolic mediators, interleukin-6 (IL-6), prostaglandin E2 (PGE2), matrix metalloproteinase 1 (MMP-1), as well as the synovial fluid constituent protein, hyaluronan. Enhanced expression of the inflammatory marker, intercellular adhesion molecule-1 (ICAM-1), was observed in HUVECs in the vascular channel, accompanied by increased attachment of circulating monocytes. This vascularised human synovium-on-a-chip model recapitulates a number of the functional characteristics of both healthy and inflamed human synovium. Thus, this model offers the first human synovium organ-chip suitable for widespread adoption to understand synovial joint disease mechanisms, permit the identification of novel therapeutic targets and support pre-clinical testing of therapies.
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Affiliation(s)
- Clare L Thompson
- Centre for Predictive In Vitro Models, Queen Mary University of London, London, United Kingdom
- Centre for Bioengineering, School of Engineering and Materials Science, Queen Mary University of London, London, United Kingdom
| | - Timothy Hopkins
- Centre for Predictive In Vitro Models, Queen Mary University of London, London, United Kingdom
- Centre for Bioengineering, School of Engineering and Materials Science, Queen Mary University of London, London, United Kingdom
- School of Pharmacy and Bioengineering, Keele University, Staffordshire, United Kingdom
- Robert Jones and Agnes Hunt Orthopaedic Hospital, Shropshire, United Kingdom
| | - Catrin Bevan
- Centre for Predictive In Vitro Models, Queen Mary University of London, London, United Kingdom
- Centre for Bioengineering, School of Engineering and Materials Science, Queen Mary University of London, London, United Kingdom
| | - Hazel R C Screen
- Centre for Predictive In Vitro Models, Queen Mary University of London, London, United Kingdom
- Centre for Bioengineering, School of Engineering and Materials Science, Queen Mary University of London, London, United Kingdom
| | - Karina T Wright
- School of Pharmacy and Bioengineering, Keele University, Staffordshire, United Kingdom
- Robert Jones and Agnes Hunt Orthopaedic Hospital, Shropshire, United Kingdom
| | - Martin M Knight
- Centre for Predictive In Vitro Models, Queen Mary University of London, London, United Kingdom
- Centre for Bioengineering, School of Engineering and Materials Science, Queen Mary University of London, London, United Kingdom
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2
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Noda K, Dufner B, Ito H, Yoshida K, Balboni G, Straub RH. Differential inflammation-mediated function of prokineticin 2 in the synovial fibroblasts of patients with rheumatoid arthritis compared with osteoarthritis. Sci Rep 2021; 11:18399. [PMID: 34526577 PMCID: PMC8443611 DOI: 10.1038/s41598-021-97809-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 08/30/2021] [Indexed: 02/08/2023] Open
Abstract
Prokineticin 2 (PK2) is a secreted protein involved in several pathological and physiological processes, including the regulation of inflammation, sickness behaviors, and circadian rhythms. Recently, it was reported that PK2 is associated with the pathogenesis of collagen-induced arthritis in mice. However, the role of PK2 in the pathogenesis of rheumatoid arthritis (RA) or osteoarthritis (OA) remains unknown. In this study, we collected synovial tissue, plasma, synovial fluid, and synovial fibroblasts (SF) from RA and OA patients to analyze the function of PK2 using immunohistochemistry, enzyme-linked immunosorbent assays, and tissue superfusion studies. PK2 and its receptors prokineticin receptor (PKR) 1 and 2 were expressed in RA and OA synovial tissues. PKR1 expression was downregulated in RA synovial tissue compared with OA synovial tissue. The PK2 concentration was higher in RA synovial fluid than in OA synovial fluid but similar between RA and OA plasma. PK2 suppressed the production of IL-6 from TNFα-prestimulated OA-SF, and this effect was attenuated in TNFα-prestimulated RA-SF. This phenomenon was accompanied by the upregulation of PKR1 in OA-SF. This study provides a new model to explain some aspects underlying the chronicity of inflammation in RA.
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Affiliation(s)
- Kentaro Noda
- grid.411941.80000 0000 9194 7179Laboratory of Experimental Rheumatology and Neuroendocrine Immunology, Department of Internal Medicine I, University Hospital Regensburg, Biopark I, Am Biopark 9, 93053 Regensburg, Germany ,grid.411898.d0000 0001 0661 2073Division of Rheumatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Bianca Dufner
- grid.411941.80000 0000 9194 7179Laboratory of Experimental Rheumatology and Neuroendocrine Immunology, Department of Internal Medicine I, University Hospital Regensburg, Biopark I, Am Biopark 9, 93053 Regensburg, Germany
| | - Haruyasu Ito
- grid.411898.d0000 0001 0661 2073Division of Rheumatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Ken Yoshida
- grid.411898.d0000 0001 0661 2073Division of Rheumatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Gianfranco Balboni
- grid.7763.50000 0004 1755 3242Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italy
| | - Rainer H. Straub
- grid.411941.80000 0000 9194 7179Laboratory of Experimental Rheumatology and Neuroendocrine Immunology, Department of Internal Medicine I, University Hospital Regensburg, Biopark I, Am Biopark 9, 93053 Regensburg, Germany
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Lutke Schipholt IJ, Coppieters MW, Meijer OG, Tompra N, de Vries RBM, Scholten-Peeters GGM. Effects of joint and nerve mobilisation on neuroimmune responses in animals and humans with neuromusculoskeletal conditions: a systematic review and meta-analysis. Pain Rep 2021; 6:e927. [PMID: 34104836 PMCID: PMC8177878 DOI: 10.1097/pr9.0000000000000927] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 02/18/2021] [Accepted: 03/12/2021] [Indexed: 12/14/2022] Open
Abstract
Supplemental Digital Content is Available in the Text. There is evidence that joint and nerve mobilisations compared with sham or no intervention positively influence various neuroimmune responses in animal and human neuromusculoskeletal conditions. Several animal and human studies revealed that joint and nerve mobilisations positively influence neuroimmune responses in neuromusculoskeletal conditions. However, no systematic review and meta-analysis has been performed. Therefore, this study aimed to synthesize the effects of joint and nerve mobilisation compared with sham or no intervention on neuroimmune responses in animals and humans with neuromusculoskeletal conditions. Four electronic databases were searched for controlled trials. Two reviewers independently selected studies, extracted data, assessed the risk of bias, and graded the certainty of the evidence. Where possible, meta-analyses using random effects models were used to pool the results. Preliminary evidence from 13 animal studies report neuroimmune responses after joint and nerve mobilisations. In neuropathic pain models, meta-analysis revealed decreased spinal cord levels of glial fibrillary acidic protein, dorsal root ganglion levels of interleukin-1β, number of dorsal root ganglion nonneuronal cells, and increased spinal cord interleukin-10 levels. The 5 included human studies showed mixed effects of spinal manipulation on salivary/serum cortisol levels in people with spinal pain, and no significant effects on serum β-endorphin or interleukin-1β levels in people with spinal pain. There is evidence that joint and nerve mobilisations positively influence various neuroimmune responses. However, as most findings are based on single studies, the certainty of the evidence is low to very low. Further studies are needed.
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Affiliation(s)
- Ivo J Lutke Schipholt
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands.,Department of Clinical Chemistry, Laboratory Medical Immunology, Amsterdam UMC, Location VU Medical Centre, Amsterdam, the Netherlands
| | - Michel W Coppieters
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands.,Menzies Health Institute Queensland, Griffith University, Brisbane & Gold Coast, Australia
| | - Onno G Meijer
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands.,Orthopaedic Biomechanics Laboratory, Fujian Medical University, Quanzhou, Fujian, PR China
| | - Nefeli Tompra
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Rob B M de Vries
- SYRCLE, Department for Health Evidence, Radboud Institute for Health Sciences, Radboud University Medical Centre, Nijmegen, the Netherlands
| | - Gwendolyne G M Scholten-Peeters
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
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Burgos RA, Alarcón P, Quiroga J, Manosalva C, Hancke J. Andrographolide, an Anti-Inflammatory Multitarget Drug: All Roads Lead to Cellular Metabolism. Molecules 2020; 26:molecules26010005. [PMID: 33374961 PMCID: PMC7792620 DOI: 10.3390/molecules26010005] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 12/17/2020] [Accepted: 12/18/2020] [Indexed: 12/15/2022] Open
Abstract
Andrographolide is a labdane diterpene and the main active ingredient isolated from the herb Andrographis paniculata. Andrographolide possesses diverse biological effects including anti-inflammatory, antioxidant, and antineoplastic properties. Clinical studies have demonstrated that andrographolide could be useful in therapy for a wide range of diseases such as osteoarthritis, upper respiratory diseases, and multiple sclerosis. Several targets are described for andrographolide, including the interference of transcription factors NF-κB, AP-1, and HIF-1 and signaling pathways such as PI3K/Akt, MAPK, and JAK/STAT. In addition, an increase in the Nrf2 (nuclear factor erythroid 2–related factor 2) signaling pathway also supports its antioxidant and anti-inflammatory properties. However, this scenario could be more complex since recent evidence suggests that andrographolide targets can modulate glucose metabolism. The metabolic effect of andrographolide might be the key to explaining the diverse therapeutic effects described in preclinical and clinical studies. This review discusses some of the most recent evidence about the anti-inflammatory and metabolic effects of andrographolide.
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Affiliation(s)
- Rafael Agustín Burgos
- Laboratory of Inflammation Pharmacology, Faculty of Veterinary Sciences, Institute of Pharmacology and Morphophysiology, Universidad Austral de Chile, Valdivia 5090000, Chile; (P.A.); (J.Q.); (J.H.)
- Laboratory of Immunometabolism, Institute of Pharmacology and Morphophysiology, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia 5090000, Chile
- Correspondence: ; Tel.: +56-63-2293-015
| | - Pablo Alarcón
- Laboratory of Inflammation Pharmacology, Faculty of Veterinary Sciences, Institute of Pharmacology and Morphophysiology, Universidad Austral de Chile, Valdivia 5090000, Chile; (P.A.); (J.Q.); (J.H.)
- Laboratory of Immunometabolism, Institute of Pharmacology and Morphophysiology, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia 5090000, Chile
| | - John Quiroga
- Laboratory of Inflammation Pharmacology, Faculty of Veterinary Sciences, Institute of Pharmacology and Morphophysiology, Universidad Austral de Chile, Valdivia 5090000, Chile; (P.A.); (J.Q.); (J.H.)
- Laboratory of Immunometabolism, Institute of Pharmacology and Morphophysiology, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia 5090000, Chile
- PhD Program in Veterinary Sciences, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia 5090000, Chile
| | - Carolina Manosalva
- Faculty of Sciences, Institute of Pharmacy, Universidad Austral de Chile, Valdivia 5090000, Chile;
| | - Juan Hancke
- Laboratory of Inflammation Pharmacology, Faculty of Veterinary Sciences, Institute of Pharmacology and Morphophysiology, Universidad Austral de Chile, Valdivia 5090000, Chile; (P.A.); (J.Q.); (J.H.)
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Dopamine Evokes a Trace Amine Receptor-dependent Inward Current that is Regulated by AMP Kinase in Substantia Nigra Dopamine Neurons. Neuroscience 2019; 427:77-91. [PMID: 31883822 DOI: 10.1016/j.neuroscience.2019.11.044] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 11/21/2019] [Accepted: 11/26/2019] [Indexed: 12/27/2022]
Abstract
We reported recently that activators of AMP-activated protein kinase (AMPK) slow the rundown of current evoked by the D2 autoreceptor agonist quinpirole in rat substantia nigra compacta (SNC) dopamine neurons. The present study examined the effect of AMPK on current generated by dopamine, which unlike quinpirole, is a substrate for the dopamine transporter (DAT). Using whole-cell patch-clamp, we constructed current-voltage (I-V) plots while superfusing brain slices with dopamine (100 μM) for 25 min. Two minutes after starting superfusion, dopamine evoked a peak current with an average slope conductance of 0.97 nS and an estimated reversal potential (Erev) of -113 mV, which is near that expected for K+. But after 10 min of superfusion, dopamine-evoked currents had shifted to more depolarized values with a slope conductance of 0.64 nS and an Erev of -83 mV. This inward shift in current was completely blocked by the DAT inhibitor GBR12935. However, an AMPK blocking agent (dorsomorphin) permitted the emergence of inward current despite the continued presence of the DAT inhibitor. When D2 autoreceptors were blocked by sulpiride, I-V plots showed that dopamine evoked an inward current with an estimated slope conductance of 0.45 nS with an Erev of -57 mV. Moreover, this inward current was completely blocked by the trace amine-associated receptor 1 (TAAR1) antagonist EPPTB. These results suggest that dopamine activates a TAAR1-dependent non-selective cation current that is regulated by AMPK.
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AMP-activated protein kinase slows D2 dopamine autoreceptor desensitization in substantia nigra neurons. Neuropharmacology 2019; 158:107705. [PMID: 31301335 DOI: 10.1016/j.neuropharm.2019.107705] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 07/08/2019] [Accepted: 07/09/2019] [Indexed: 12/14/2022]
Abstract
Dopamine neurons in the substantia nigra zona compacta (SNC) are well known to express D2 receptors. When dopamine is released from somatodendritic sites, activation of D2 autoreceptors suppresses dopamine neuronal activity through activation of G protein-coupled K+ channels. AMP-activated protein kinase (AMPK) is a master enzyme that acts in somatic tissues to suppress energy expenditure and encourage energy production. We hypothesize that AMPK may also conserve energy in central neurons by reducing desensitization of D2 autoreceptors. We used whole-cell patch-clamp recordings to study the effects of AMPK activators and inhibitors on D2 autoreceptor-mediated current in SNC neurons in midbrain slices from rat pups (11-23 days post-natal). Slices were superfused with 100 μM dopamine or 30 μM quinpirole for 25 min, which evoked outward currents that decayed slowly over time. Although the AMPK activators A769662 and ZLN024 significantly slowed rundown of dopamine-evoked current, slowing of quinpirole-evoked current required the presence of a D1-like agonist (SKF38393). Moreover, the D1-like agonist also slowed the rundown of quinpirole-induced current even in the absence of an AMPK activator. Pharmacological antagonist experiments showed that the D1-like agonist effect required activation of either protein kinase A (PKA) or exchange protein directly activated by cAMP 2 (Epac2) pathways. In contrast, the effect of AMPK on rundown of current evoked by quinpirole plus SKF38393 required PKA but not Epac2. We conclude that AMPK slows D2 autoreceptor desensitization by augmenting the effect of D1-like receptors.
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Luo J, Chen Y, Ding C, Qiu J, Chen Y, Lin Y, Su L, Jiang D. Heat stress combined with lipopolysaccharide alter the activity and superficial molecules of peripheral monocytes. Int J Immunopathol Pharmacol 2019; 33:2058738419828891. [PMID: 30767578 PMCID: PMC6378461 DOI: 10.1177/2058738419828891] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
The purpose of this study was to focus on the underlying relationship between the hyperactivity for the peripheral monocytes and heat stroke by investigating the inflammatory oxidative activity of and the expression of superficial molecules. Peripheral blood samples were collected from 10 healthy adult volunteers. Human blood monocytes were isolated by density gradient centrifugation and sequent adherent culture. The objectives were divided into four groups: 43°C heat stress combined with lipopolysaccharide (LPS) group, 43°C heat stress group, LPS group, and control group. There were 10 cases in each group. An enzyme-linked immunosorbent assay (ELISA) test was used to measure the concentrations of supernatant inflammatory mediators (tumor necrosis factor alpha (TNF-α), interleukin-1β (IL-1β) and interleukin-10 (IL-10)). After loaded by 2,7-Dichlorodi-hydrofluorescein-diacetate (DCFHDA) fluorescent probe, intracellular reactive oxygen species (ROS) levels were determined by a flow cytometry. After fluorescent microspheres incubation, the phagocytosis of monocytes was observed under a fluorescent microscope. Respectively, the flow cytometry and Western blot were used to evaluate the level of triggering receptor expressed on myeloid cells-1 (TREM-1) and Toll-like receptor-4 (TLR-4) on the monocytes. Furthermore, the mRNA expression of TREM-1 and TLR-4 was detected by real-time polymerase chain reaction (RT-PCR). The heat stress combined with LPS stimulation promoted the peripheral monocytes to produce inflammatory mediators (TNF-α, IL-1β, and IL-10) and release ROS. Otherwise, such complex strike significantly suppressed the phagocytic activity of monocytes in peripheral blood. Moreover, the expression of TREM-1, TLR-4 and CD86 was measured by the flow cytometry on peripheral monocytes which were respectively promoted by the union of heat stress and LPS. The results of Western blot and RT-PCR demonstrated the similar kinetics on these superficial molecules (TREM-1, TLR-4, and CD86) stimulated by the combination of heat stress and LPS. The underlying mechanism of the dysfunction for the peripheral monocytes may be related to the abnormal expression of superficial molecules TREM-1, TLR-4, and CD86 on the monocytes induced by heat stress and LPS.
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Affiliation(s)
- Jiajing Luo
- 1 Department of Critical Care Medicine, The Fifth Peoples' Hospital of Dongguan, Dongguan Hospital Affiliated to Jinan University, Dongguan, China
| | - Yi Chen
- 1 Department of Critical Care Medicine, The Fifth Peoples' Hospital of Dongguan, Dongguan Hospital Affiliated to Jinan University, Dongguan, China
| | - Chengjia Ding
- 1 Department of Critical Care Medicine, The Fifth Peoples' Hospital of Dongguan, Dongguan Hospital Affiliated to Jinan University, Dongguan, China
| | - Jialing Qiu
- 1 Department of Critical Care Medicine, The Fifth Peoples' Hospital of Dongguan, Dongguan Hospital Affiliated to Jinan University, Dongguan, China
| | - Yulan Chen
- 1 Department of Critical Care Medicine, The Fifth Peoples' Hospital of Dongguan, Dongguan Hospital Affiliated to Jinan University, Dongguan, China
| | - Youping Lin
- 1 Department of Critical Care Medicine, The Fifth Peoples' Hospital of Dongguan, Dongguan Hospital Affiliated to Jinan University, Dongguan, China
| | - Lei Su
- 2 Department of Critical Care Medicine, General Hospital of Southern Theater Command, Key Laboratory of Tropical Trauma Care and Tissue Repair of PLA, Guangzhou, China
| | - Dongxin Jiang
- 1 Department of Critical Care Medicine, The Fifth Peoples' Hospital of Dongguan, Dongguan Hospital Affiliated to Jinan University, Dongguan, China
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Maruyama K, Nemoto E, Yamada S. Mechanical regulation of macrophage function - cyclic tensile force inhibits NLRP3 inflammasome-dependent IL-1β secretion in murine macrophages. Inflamm Regen 2019; 39:3. [PMID: 30774738 PMCID: PMC6367847 DOI: 10.1186/s41232-019-0092-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 01/22/2019] [Indexed: 02/07/2023] Open
Abstract
Mechanical stress maintains tissue homeostasis by regulating many cellular functions including cell proliferation, differentiation, and inflammation and immune responses. In inflammatory microenvironments, macrophages in mechanosensitive tissues receive mechanical signals that regulate various cellular functions and inflammatory responses. Macrophage function is affected by several types of mechanical stress, but the mechanisms by which mechanical signals influence macrophage function in inflammation, such as the regulation of interleukin-1β by inflammasomes, remain unclear. In this review, we describe the role of mechanical stress in macrophage and monocyte cell function.
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Affiliation(s)
- Kentaro Maruyama
- Department of Periodontology and Endodontology, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Eiji Nemoto
- Department of Periodontology and Endodontology, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Satoru Yamada
- Department of Periodontology and Endodontology, Tohoku University Graduate School of Dentistry, Sendai, Japan
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Serum–glucocorticoid-regulated kinase 1 contributes to mechanical stretch-induced inflammatory responses in cardiac fibroblasts. Mol Cell Biochem 2017; 445:67-78. [DOI: 10.1007/s11010-017-3252-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 12/10/2017] [Indexed: 01/29/2023]
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Li Y, Yao D, Zhang J, Liu B, Zhang L, Feng H, Li B. The Effects of Epidermal Neural Crest Stem Cells on Local Inflammation Microenvironment in the Defected Sciatic Nerve of Rats. Front Mol Neurosci 2017; 10:133. [PMID: 28588447 PMCID: PMC5438963 DOI: 10.3389/fnmol.2017.00133] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 04/20/2017] [Indexed: 12/21/2022] Open
Abstract
Cell-based therapy is a promising strategy for the repair of peripheral nerve injuries (PNIs). epidermal neural crest stems cells (EPI-NCSCs) are thought to be important donor cells for repairing PNI in different animal models. Following PNI, inflammatory response is important to regulate the repair process. However, the effects of EPI-NCSCs on regulation of local inflammation microenviroment have not been investigated extensively. In the present study, these effects were studied by using 10 mm defected sciatic nerve, which was bridged with 15 mm artificial nerve composed of EPI-NCSCs, extracellular matrix (ECM) and poly (lactide-co-glycolide) (PLGA). Then the expression of pro- and anti-inflammatory cytokines, polarization of macrophages, regulation of fibroblasts and shwann cells (SCs) were assessed by western blot, immunohistochemistry, immunofluorescence staining at 1, 3, 7 and 21 days after bridging. The structure and the function of the bridged nerve were determined by observation under light microscope and by examination of right lateral foot retraction time (LFRT), sciatic function index (SFI), gastrocnemius wet weight and electrophysiology at 9 weeks. After bridging with EPI-NCSCs, the expression of anti-inflammatory cytokines (IL-4 and IL-13) was increased, but decreased for pro-inflammatory cytokines (IL-6 and TNF-α) compared to the control bridging, which was consistent with increase of M2 macrophages and decrease of M1 macrophages at 7 days after transplantation. Likewise, myelin-formed SCs were significantly increased, but decreased for the activated fibroblasts in their number at 21 days. The recovery of structure and function of nerve bridged with EPI-NCSCs was significantly superior to that of DMEM. These results indicated that EPI-NCSCs could be able to regulate and provide more suitable inflammation microenvironment for the repair of defected sciatic nerve.
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Affiliation(s)
- Yue Li
- Department of Neurosurgery, Southwest Hospital/State Key Laboratory of Trauma, Burns and Combined Injury, Third Military Medical UniversityChongqing, China
| | - Dongdong Yao
- Research Institute of Surgery, Daping Hospital/State Key Laboratory of Trauma, Burns and Combined Injury, Third Military Medical UniversityChongqing, China.,School of Life Sciences/Key Laboratory of Freshwater Fish Reproduction and Development of Education Ministry, Southwest UniversityChongqing, China
| | - Jieyuan Zhang
- Research Institute of Surgery, Daping Hospital/State Key Laboratory of Trauma, Burns and Combined Injury, Third Military Medical UniversityChongqing, China
| | - Bin Liu
- School of Life Sciences/Key Laboratory of Freshwater Fish Reproduction and Development of Education Ministry, Southwest UniversityChongqing, China
| | - Lu Zhang
- Children's Hospital of Chongqing Medical University/Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Medical UniversityChongqing, China
| | - Hua Feng
- Department of Neurosurgery, Southwest Hospital/State Key Laboratory of Trauma, Burns and Combined Injury, Third Military Medical UniversityChongqing, China
| | - Bingcang Li
- Research Institute of Surgery, Daping Hospital/State Key Laboratory of Trauma, Burns and Combined Injury, Third Military Medical UniversityChongqing, China
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