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Zhao Y, Li Z, Chen Y, Li Y, Lu J. Suppression of P2X7R by Local Treatment Alleviates Acute Gouty Inflammation. J Inflamm Res 2023; 16:3581-3591. [PMID: 37636273 PMCID: PMC10460186 DOI: 10.2147/jir.s421548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 08/04/2023] [Indexed: 08/29/2023] Open
Abstract
Objective Gout is the most common inflammatory arthritis associated with interleukin-1β (IL-1β) accumulation during exacerbation. In this study, we aimed to clarify whether potassium channel antagonists attenuate local inflammation in mice with monosodium urate (MSU)-induced gout. Methods We cultured human macrophage THP-1 cells and evaluated the molecular levels of both IL-1β and potassium channels stimulated with MSU and/or potassium channel antagonists. Acute gout models were generated in IL-1β luciferase transgenic male mice using synovium-like subcutaneous air pouches with MSU injection. Their luciferase activities were monitored following potassium channel blocker treatment using the IVIS Spectrum CT imaging system. The lavages and tissues were extracted from their air pouches, followed by cell counting and pathological analysis. Results MSU stimulation increased the gene expression levels of pro-IL-1β, P2x7r and Kv1.3, whereas the expression of Kcnq1 was decreased in phorbol 12-myristate 13-acetate-induced THP-1 cells. Both high and low concentrations of the P2x7 receptor inhibitor adenosine 5'-triphosphate (ATP) derivative periodate oxidized ATP (oATP) decreased the production of IL-1β in the supernatant of THP-1 cells. The sixth hour was the peak time of IL-1β luciferase activity after MSU intervention in vivo. oATP ameliorated the synovial IL-1β luciferase activity, reduced inflammatory cell infiltration and alleviated the erosive damage in the cartilage. Conclusion The anti-inflammatory properties of potassium channel inhibitors, especially of oATP, might point to new strategies for local anti-inflammatory therapy for acute gout.
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Affiliation(s)
- Yang Zhao
- Department of Orthodontics, the Affiliated Hospital of Qingdao University, Qingdao, People’s Republic of China
- Medical Research Center, the Affiliated Hospital of Qingdao University, Qingdao, People’s Republic of China
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, People’s Republic of China
| | - Zhiyuan Li
- Medical Research Center, the Affiliated Hospital of Qingdao University, Qingdao, People’s Republic of China
| | - Ying Chen
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, People’s Republic of China
- Shandong Provincial Clinical Research Center for Immune Diseases and Gout, the Affiliated Hospital of Qingdao University, Qingdao, People’s Republic of China
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, People’s Republic of China
| | - Yushuang Li
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, People’s Republic of China
- Shandong Provincial Clinical Research Center for Immune Diseases and Gout, the Affiliated Hospital of Qingdao University, Qingdao, People’s Republic of China
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, People’s Republic of China
| | - Jie Lu
- Medical Research Center, the Affiliated Hospital of Qingdao University, Qingdao, People’s Republic of China
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, the Affiliated Hospital of Qingdao University, Qingdao, People’s Republic of China
- Shandong Provincial Clinical Research Center for Immune Diseases and Gout, the Affiliated Hospital of Qingdao University, Qingdao, People’s Republic of China
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, People’s Republic of China
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2
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Mulgaonkar A, Udayakumar D, Yang Y, Harris S, Öz OK, Ramakrishnan Geethakumari P, Sun X. Current and potential roles of immuno-PET/-SPECT in CAR T-cell therapy. Front Med (Lausanne) 2023; 10:1199146. [PMID: 37441689 PMCID: PMC10333708 DOI: 10.3389/fmed.2023.1199146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 05/25/2023] [Indexed: 07/15/2023] Open
Abstract
Chimeric antigen receptor (CAR) T-cell therapies have evolved as breakthrough treatment options for the management of hematological malignancies and are also being developed as therapeutics for solid tumors. However, despite the impressive patient responses from CD19-directed CAR T-cell therapies, ~ 40%-60% of these patients' cancers eventually relapse, with variable prognosis. Such relapses may occur due to a combination of molecular resistance mechanisms, including antigen loss or mutations, T-cell exhaustion, and progression of the immunosuppressive tumor microenvironment. This class of therapeutics is also associated with certain unique toxicities, such as cytokine release syndrome, immune effector cell-associated neurotoxicity syndrome, and other "on-target, off-tumor" toxicities, as well as anaphylactic effects. Furthermore, manufacturing limitations and challenges associated with solid tumor infiltration have delayed extensive applications. The molecular imaging modalities of immunological positron emission tomography and single-photon emission computed tomography (immuno-PET/-SPECT) offer a target-specific and highly sensitive, quantitative, non-invasive platform for longitudinal detection of dynamic variations in target antigen expression in the body. Leveraging these imaging strategies as guidance tools for use with CAR T-cell therapies may enable the timely identification of resistance mechanisms and/or toxic events when they occur, permitting effective therapeutic interventions. In addition, the utilization of these approaches in tracking the CAR T-cell pharmacokinetics during product development and optimization may help to assess their efficacy and accordingly to predict treatment outcomes. In this review, we focus on current challenges and potential opportunities in the application of immuno-PET/-SPECT imaging strategies to address the challenges encountered with CAR T-cell therapies.
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Affiliation(s)
- Aditi Mulgaonkar
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Durga Udayakumar
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, TX, United States
- Advanced Imaging Research Center, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Yaxing Yang
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Shelby Harris
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Orhan K. Öz
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Praveen Ramakrishnan Geethakumari
- Section of Hematologic Malignancies/Transplant and Cell Therapy, Division of Hematology-Oncology, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Xiankai Sun
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, TX, United States
- Advanced Imaging Research Center, University of Texas Southwestern Medical Center, Dallas, TX, United States
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3
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Secher T, Couturier A, Huot L, Bouscayrol H, Grandjean T, Boulard O, Hot D, Ryffel B, Chamaillard M. A Protective Role of NOD2 on Oxazolone-induced Intestinal Inflammation Through IL-1β-mediated Signalling Pathway. J Crohns Colitis 2023; 17:111-122. [PMID: 35917251 DOI: 10.1093/ecco-jcc/jjac106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Indexed: 01/31/2023]
Abstract
BACKGROUND AND AIMS NOD2 has emerged as a critical player in the induction of both Th1 and Th2 responses for potentiation and polarisation of antigen-dependent immunity. Loss-of-function mutations in the NOD2-encoding gene and deregulation of its downstream signalling pathway have been linked to Crohn's disease. Although it is well documented that NOD2 is capable of sensing bacterial muramyl dipeptide, it remains counter-intuitive to link development of overt intestinal inflammation to a loss of bacterial-induced inflammatory response. We hypothesised that a T helper bias could also contribute to an autoimmune-like colitis different from inflammation that is fully fledged by Th1 type cells. METHODS An oedematous bowel wall with a mixed Th1/Th2 response was induced in mice by intrarectal instillation of the haptenating agent oxazolone. Survival and clinical scoring were evaluated. At several time points after instillation, colonic damage was assessed by macroscopic and microscopic observations. To evaluate the involvement of NOD2 in immunochemical phenomena, quantitative polymerase chain reaction [PCR] and flow cytometry analysis were performed. Bone marrow chimera experimentation allowed us to evaluate the role of haematopoietic/non-hematopoietic NOD2-expressing cells. RESULTS Herein, we identified a key regulatory circuit whereby NOD2-mediated sensing of a muramyl dipeptide [MDP] by radio-resistant cells improves colitis with a mixed Th1/Th2 response that is induced by oxazolone. Genetic ablation of either Nod2 or Ripk2 precipitated oxazolone colitis that is predominantly linked to a lack of interferon-gamma. Bone marrow chimera experiments revealed that inactivation of Nod2 signalling in non-haematopoietic cells is causing a biased M1-M2 polarisation of macrophages and a decreased frequency of splenic regulatory T cells that correlates with an impaired activation of CD4 + T cells within mesenteric lymph nodes. Mechanistically, mice were protected from oxazolone-induced colitis upon administration of MDP in an interleukin-1- and interleukin-23-dependent manner. CONCLUSIONS These findings indicate that Nod2 signalling may prevent pathological conversion of T helper cells for maintenance of tissue homeostasis.
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Affiliation(s)
- Thomas Secher
- INEM, Orléans University, CNRS UMR 7355, F-45071, Orléans, France.,CEPR, Tours University, INSERM U1100, F-37000, Tours, France
| | | | - Ludovic Huot
- Centre d'Infection et d'Immunité de Lille, Université de Lille, CNRS, Inserm, CHRU Lille, Institut Pasteur de Lille, U1019-UMR 9017, F-59000, Lille, France
| | - Helene Bouscayrol
- Service d'oncologie-radiothérapie, CHR d'Orléans-La Source, Orléans, France
| | - Teddy Grandjean
- Centre d'Infection et d'Immunité de Lille, Université de Lille, CNRS, Inserm, CHRU Lille, Institut Pasteur de Lille, U1019-UMR 9017, F-59000, Lille, France
| | - Olivier Boulard
- Laboratory of Cell Physiology, Inserm U1003, University of Lille, Lille, France
| | - David Hot
- CEPR, Tours University, INSERM U1100, F-37000, Tours, France.,University of Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, US 41-UAR 2014-PLBS, F-59000 Lille, France
| | - Bernhard Ryffel
- INEM, Orléans University, CNRS UMR 7355, F-45071, Orléans, France
| | - Mathias Chamaillard
- Laboratory of Cell Physiology, Inserm U1003, University of Lille, Lille, France
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Shao F, Ci L, Shi J, Fang F, Yan B, Liu X, Yao X, Zhang M, Yang H, Wang Z, Fei J. Bioluminescence imaging of mouse monocyte chemoattractant protein-1 expression in inflammatory processes. Acta Biochim Biophys Sin (Shanghai) 2022; 54:1507-1517. [PMID: 36239355 PMCID: PMC9828394 DOI: 10.3724/abbs.2022143] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Monocyte chemoattractant protein-1 (MCP-1) plays a crucial role in various inflammatory diseases. To reveal the impact of MCP-1 during diseases and to develop anti-inflammatory agents, we establish a transgenic mouse line. The firefly luciferase gene is incorporated into the mouse genome and driven by the endogenous MCP-1 promoter. A bioluminescence photographing system is applied to monitor luciferase levels in live mice during inflammation, including lipopolysaccharide-induced sepsis, concanavalin A-induced T cell-dependent liver injury, CCl 4-induced acute hepatitis, and liver fibrosis. The results demonstrate that the luciferase signal induced in inflammatory processes is correlated with endogenous MCP-1 expression in mice. Furthermore, the expressions of MCP-1 and the luciferase gene are dramatically inhibited by administration of the anti-inflammatory drug dexamethasone in a septicemia model. Our results suggest that the transgenic MCP-1-Luc mouse is a useful model to study MCP-1 expression in inflammation and disease and to evaluate the efficiency of anti-inflammatory drugs in vivo.
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Affiliation(s)
- Fangyang Shao
- School of Life Sciences and TechnologyTongji UniversityShanghai200092China,Institute of BiophysicsChinese Academy of SciencesBeijing100101China,College of Life SciencesUniversity of Chinese Academy of SciencesBeijing100049China
| | - Lei Ci
- Shanghai Engineering Research Center for Model OrganismsSMOCShanghai201203China,Correspondence address. Tel: +86-21-65982429; (J.F.) / Tel: +86-21-20791155; (L.C.) @modelorg.com
| | - Jiahao Shi
- School of Life Sciences and TechnologyTongji UniversityShanghai200092China
| | - Fei Fang
- School of Life Sciences and TechnologyTongji UniversityShanghai200092China
| | - Bowen Yan
- School of Life Sciences and TechnologyTongji UniversityShanghai200092China
| | - Xijun Liu
- School of Life Sciences and TechnologyTongji UniversityShanghai200092China
| | - Xiangyu Yao
- School of Life Sciences and TechnologyTongji UniversityShanghai200092China
| | - Mengjie Zhang
- School of Life Sciences and TechnologyTongji UniversityShanghai200092China
| | - Hua Yang
- School of Life Sciences and TechnologyTongji UniversityShanghai200092China
| | - Zhugang Wang
- Shanghai Engineering Research Center for Model OrganismsSMOCShanghai201203China
| | - Jian Fei
- School of Life Sciences and TechnologyTongji UniversityShanghai200092China,Correspondence address. Tel: +86-21-65982429; (J.F.) / Tel: +86-21-20791155; (L.C.) @modelorg.com
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5
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Chawda C, McMorrow R, Gaspar N, Zambito G, Mezzanotte L. Monitoring Immune Cell Function Through Optical Imaging: a Review Highlighting Transgenic Mouse Models. Mol Imaging Biol 2022; 24:250-263. [PMID: 34735680 PMCID: PMC8983637 DOI: 10.1007/s11307-021-01662-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 09/29/2021] [Accepted: 09/30/2021] [Indexed: 11/17/2022]
Abstract
Transgenic mouse models have facilitated research of human diseases and validation of therapeutic approaches. Inclusion of optical reporter genes (fluorescent or bioluminescent genes) in the targeting vectors used to develop such models makes in vivo imaging of cellular and molecular events possible, from the microscale to the macroscale. In particular, transgenic mouse models expressing optical reporter genes allowed accurately distinguishing immune cell types from trafficking in vivo using intravital microscopy or whole-body optical imaging. Besides lineage tracing and trafficking of different subsets of immune cells, the ability to monitor the function of immune cells is of pivotal importance for investigating the effects of immunotherapies against cancer. Here, we introduce the reader to state-of-the-art approaches to develop transgenics, optical imaging techniques, and several notable examples of transgenic mouse models developed for immunology research by critically highlighting the models that allow the following of immune cell function.
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Affiliation(s)
- Chintan Chawda
- Department of Radiology and Nuclear Medicine, Erasmus MC, Rotterdam, The Netherlands
- Department of Molecular Genetics, Erasmus MC, Rotterdam, The Netherlands
| | - Roisin McMorrow
- Department of Radiology and Nuclear Medicine, Erasmus MC, Rotterdam, The Netherlands
- Department of Molecular Genetics, Erasmus MC, Rotterdam, The Netherlands
- Percuros B.V, Leiden, The Netherlands
| | - Natasa Gaspar
- Department of Radiology and Nuclear Medicine, Erasmus MC, Rotterdam, The Netherlands
- Department of Molecular Genetics, Erasmus MC, Rotterdam, The Netherlands
- Percuros B.V, Leiden, The Netherlands
| | - Giorgia Zambito
- Department of Radiology and Nuclear Medicine, Erasmus MC, Rotterdam, The Netherlands
- Department of Molecular Genetics, Erasmus MC, Rotterdam, The Netherlands
| | - Laura Mezzanotte
- Department of Radiology and Nuclear Medicine, Erasmus MC, Rotterdam, The Netherlands.
- Department of Molecular Genetics, Erasmus MC, Rotterdam, The Netherlands.
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6
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Zhou Q, Liang J, Yang T, Liu J, Li B, Li Y, Fan Z, Wang W, Chen W, Yuan S, Xu M, Xu Q, Luan Z, Xia Z, Zhou P, Huang Y, Chen L. Carfilzomib modulates tumor microenvironment to potentiate immune checkpoint therapy for cancer. EMBO Mol Med 2022; 14:e14502. [PMID: 34898004 PMCID: PMC8749493 DOI: 10.15252/emmm.202114502] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 10/31/2021] [Accepted: 11/05/2021] [Indexed: 01/01/2023] Open
Abstract
Impressive clinical benefit is seen in clinic with PD-1 inhibitors on portion of cancer patients. Yet, there remains an urgent need to develop effective synergizers to expand their clinical application. Tumor-associated macrophage (TAM), a type of M2-polarized macrophage, eliminates or suppresses T-cell-mediated anti-tumor responses. Transforming TAMs into M1 macrophages is an attractive strategy of anti-tumor therapy. Here, we conducted a high-throughput screening and found that Carfilzomib potently drove M2 macrophages to express M1 cytokines, phagocytose tumor cells, and present antigens to T cells. Mechanistically, Carfilzomib elicited unfolded protein response (UPR), activated IRE1α to recruit TRAF2, and activated NF-κB to transcribe genes encoding M1 markers in M2 macrophages. In vivo, Carfilzomib effectively rewired tumor microenvironment through reprogramming TAMs into M1-like macrophages and shrank autochthonous lung cancers in transgenic mouse model. More importantly, Carfilzomib synergized with PD-1 antibody to almost completely regress autochthonous lung cancers. Given the safety profiles of Carfilzomib in clinic, our work suggested a potentially immediate application of combinational treatment with Carfilzomib and PD-1 inhibitors for patients with solid tumors.
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Affiliation(s)
- Qian Zhou
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and MOE Key Laboratory of Tumor Molecular BiologyInstitute of Life and Health EngineeringCollege of Life Science and TechnologyJinan UniversityGuangzhouChina
| | - Jinxia Liang
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and MOE Key Laboratory of Tumor Molecular BiologyInstitute of Life and Health EngineeringCollege of Life Science and TechnologyJinan UniversityGuangzhouChina
| | - Tong Yang
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and MOE Key Laboratory of Tumor Molecular BiologyInstitute of Life and Health EngineeringCollege of Life Science and TechnologyJinan UniversityGuangzhouChina
| | - Jin Liu
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and MOE Key Laboratory of Tumor Molecular BiologyInstitute of Life and Health EngineeringCollege of Life Science and TechnologyJinan UniversityGuangzhouChina
| | - Bo Li
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and MOE Key Laboratory of Tumor Molecular BiologyInstitute of Life and Health EngineeringCollege of Life Science and TechnologyJinan UniversityGuangzhouChina
- MOE Key Laboratory of Glucolipid Metabolic DiseasesGuangdong Metabolic Diseases Research Center of Integrated Chinese and Western MedicineCollege of Chinese Medicine ResearchGuangdong Pharmaceutical UniversityGuangzhouChina
| | - Yingchang Li
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and MOE Key Laboratory of Tumor Molecular BiologyInstitute of Life and Health EngineeringCollege of Life Science and TechnologyJinan UniversityGuangzhouChina
| | - Zhenzhen Fan
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and MOE Key Laboratory of Tumor Molecular BiologyInstitute of Life and Health EngineeringCollege of Life Science and TechnologyJinan UniversityGuangzhouChina
| | - Weida Wang
- State Key Laboratory of Oncology in Southern ChinaCollaborative Innovation Center for Cancer MedicineSun Yat‐sen University Cancer CenterGuangzhouChina
| | - Wensheng Chen
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and MOE Key Laboratory of Tumor Molecular BiologyInstitute of Life and Health EngineeringCollege of Life Science and TechnologyJinan UniversityGuangzhouChina
- Department of OncologyThe First Affiliated HospitalJinan UniversityGuangzhouChina
| | - Sujing Yuan
- State Key Laboratory of Oncology in Southern ChinaCollaborative Innovation Center for Cancer MedicineSun Yat‐sen University Cancer CenterGuangzhouChina
| | - Meng Xu
- Department of OncologyThe First Affiliated HospitalJinan UniversityGuangzhouChina
| | - Qigui Xu
- Translational medicine laboratoryPeople’s Hospital of Yangjiang CityGuangdongChina
| | - Zhidong Luan
- Translational medicine laboratoryPeople’s Hospital of Yangjiang CityGuangdongChina
| | - Zhongjun Xia
- State Key Laboratory of Oncology in Southern ChinaCollaborative Innovation Center for Cancer MedicineSun Yat‐sen University Cancer CenterGuangzhouChina
| | - Penghui Zhou
- State Key Laboratory of Oncology in Southern ChinaCollaborative Innovation Center for Cancer MedicineSun Yat‐sen University Cancer CenterGuangzhouChina
| | - Yadong Huang
- Guangdong Province Key Laboratory of Bioengineering MedicineJinan UniversityGuangzhouChina
| | - Liang Chen
- Department of OncologyThe First Affiliated HospitalJinan UniversityGuangzhouChina
- Guangdong Province Key Laboratory of Bioengineering MedicineJinan UniversityGuangzhouChina
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7
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Nandi D, Farid NSS, Karuppiah HAR, Kulkarni A. Imaging Approaches to Monitor Inflammasome Activation. J Mol Biol 2021; 434:167251. [PMID: 34537231 DOI: 10.1016/j.jmb.2021.167251] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 09/09/2021] [Accepted: 09/10/2021] [Indexed: 10/20/2022]
Abstract
Inflammasomes are a critical component of innate immune response which plays an important role in the pathogenesis of various chronic and acute inflammatory disease conditions. An inflammasome complex consists of a multimeric protein assembly triggered by any form of pathogenic or sterile insult, resulting in caspase-1 activation. This active enzyme is further known to activate downstream pro-inflammatory cytokines along with a pore-forming protein, eventually leading to a lytic cell death called pyroptosis. Understanding the spatiotemporal kinetics of essential inflammasome components provides a better interpretation of the complex signaling underlying inflammation during several disease pathologies. This can be attained via in-vitro and in-vivo imaging platforms, which not only provide a basic understanding of molecular signaling but are also crucial to develop and screen targeted therapeutics. To date, numerous studies have reported platforms to image different signaling components participating in inflammasome activation. Here, we review several elements of inflammasome signaling, a common molecular mechanism combining these elements and their respective imaging tools. We anticipate that future needs will include developing new inflammasome imaging systems that can be utilized as clinical tools for diagnostics and monitoring treatment responses.
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Affiliation(s)
- Dipika Nandi
- Department of Chemical Engineering, University of Massachusetts, Amherst, MA, USA; Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, USA. https://twitter.com/dipikanandi24
| | - Noorul Shaheen Sheikh Farid
- Department of Chemical Engineering, University of Massachusetts, Amherst, MA, USA. https://twitter.com/Shaheen30n
| | - Hayat Anu Ranjani Karuppiah
- Department of Chemical Engineering, University of Massachusetts, Amherst, MA, USA. https://twitter.com/AnuHayat
| | - Ashish Kulkarni
- Department of Chemical Engineering, University of Massachusetts, Amherst, MA, USA; Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, USA; Department of Biomedical Engineering, University of Massachusetts, Amherst, MA, USA; Center for Bioactive Delivery, Institute for Applied Life Sciences, University of Massachusetts, Amherst, MA 01003, USA.
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8
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Sun P, Yue H, Xing Q, Deng W, Ou Y, Pan G, Zhong X, Hu W. Compound AD16 Reduces Amyloid Plaque Deposition and Modifies Microglia in a Transgenic Mouse Model of Alzheimer's Disease. ACS Pharmacol Transl Sci 2020; 3:1100-1110. [PMID: 33344892 DOI: 10.1021/acsptsci.0c00073] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Indexed: 12/21/2022]
Abstract
Microglial dysfunction is involved in the pathological cascade of Alzheimer's disease (AD). The regulation of microglial function may be a novel strategy for AD therapy. We previously reported the discovery of AD16, an antineuroinflammatory molecule that could improve learning and memory in the AD model. Here, we studied its properties of microglial modification in the AD mice model. In this study, AD16 reduced interleukin-1β (IL-1β) expression in the lipopolysaccharide-induced IL-1β-Luc transgenic mice model. Compared with mice receiving placebo, the group treated with AD16 manifested a significant reduction of microglial activation, plaque deposition, and peri-plaques microgliosis, but without alteration of the number of microglia surrounding the plaque. We also found that AD16 decreased senescent microglial cells marked with SA-β-gal staining. Furthermore, altered lysosomal positioning, enhanced Lysosomal Associated Membrane Protein 1 (LAMP1) expression, and elevated adenosine triphosphate (ATP) concentration were found with AD16 treatment in lipopolysaccharide-stimulated BV2 microglial cells. The underlying mechanisms of AD16 might include regulating the microglial activation/senescence and recovery of its physiological function via the improvement of lysosomal function. Our findings provide new insights into the AD therapeutic approach through the regulation of microglial function and a promising lead compound for further study.
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Affiliation(s)
- Ping Sun
- Key Laboratory of Molecular Target & Clinical Pharmacology and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China.,Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, Guangdong 510530, China
| | - Hu Yue
- Key Laboratory of Molecular Target & Clinical Pharmacology and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Qi Xing
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, Guangdong 510530, China
| | - Wenmin Deng
- Key Laboratory of Molecular Target & Clinical Pharmacology and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Yitao Ou
- Key Laboratory of Molecular Target & Clinical Pharmacology and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Guangjin Pan
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, Guangdong 510530, China
| | - Xiaofen Zhong
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, Guangdong 510530, China
| | - Wenhui Hu
- Key Laboratory of Molecular Target & Clinical Pharmacology and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
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9
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O'Brien MB, McLoughlin RM, Meade KG. Application of the TruCulture® whole blood stimulation system for immune response profiling in cattle. Vet Immunol Immunopathol 2020; 221:110025. [PMID: 32086040 DOI: 10.1016/j.vetimm.2020.110025] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 02/05/2020] [Accepted: 02/10/2020] [Indexed: 01/06/2023]
Abstract
Capturing the phenotypic variation in immune responses holds enormous promise for the development of targeted treatments for disease as well as tailored vaccination schedules. However, accurate detection of true biological variation can be obscured by the lack of standardised immune assays. The TruCulture® whole blood stimulation system has now been extensively used to detect basal and induced immune responses to a range of pathogen-associated molecular patterns (PAMPs) in human peripheral blood. This study demonstrates the optimisation of this commercially available assay for systemic immune phenotyping in cattle. The early immune response in Holstein-Friesian bull calves (n = 10) was assessed by haematology, flow cytometry and cytokine expression profiling after 24 h ex-vivo PAMP (LPS, poly (I:C) and zymosan) stimulation in TruCulture® tubes. A comparative analysis was also performed with a traditional whole blood stimulation assay and cell viability using both systems was also evaluated. Results: Supernatant collected from TruCulture® tubes showed a significant increase in IL-1β and IL-8 expression compared to null stimulated tubes in response to both LPS and zymosan. In contrast, a detectable immune response was not apparent at the standard concentration of poly (I:C). Conventional whole blood cultures yielded similar response profiles, although the magnitude of the response was higher to both LPS and zymosan, which may be attributed to prokaryotic strain-specificity or batch of the stimulant used. Despite being a closed system, HIF1A expression - used as a measure of hypoxia was not increased, suggesting the TruCulture® assay did not negatively affect cell viability. This represents the first reported use of this novel standardised assay in cattle, and indicates that the concentration of poly (I:C) immunogenic in humans is insufficient to induce cytokine responses in cattle. We conclude that the low blood volume and minimally invasive TruCulture® assay system offers a practical and informative technique to assess basal and induced systemic immune responses in cattle.
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Affiliation(s)
- Megan B O'Brien
- Animal & Bioscience Research Department, Animal & Grassland Research and Innovation Centre, Teagasc, Grange, Co Meath, Ireland; Host-Pathogen Interactions Group, School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Rachel M McLoughlin
- Host-Pathogen Interactions Group, School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Kieran G Meade
- Animal & Bioscience Research Department, Animal & Grassland Research and Innovation Centre, Teagasc, Grange, Co Meath, Ireland.
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10
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Manni I, de Latouliere L, Gurtner A, Piaggio G. Transgenic Animal Models to Visualize Cancer-Related Cellular Processes by Bioluminescence Imaging. Front Pharmacol 2019; 10:235. [PMID: 30930779 PMCID: PMC6428995 DOI: 10.3389/fphar.2019.00235] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 02/25/2019] [Indexed: 12/21/2022] Open
Abstract
Preclinical animal models are valuable tools to improve treatments of malignant diseases, being an intermediate step of experimentation between cell culture and human clinical trials. Among different animal models frequently used in cancer research are mouse and, more recently, zebrafish models. Indeed, most of the cellular pathways are highly conserved between human, mouse and zebrafish, thus rendering these models very attractive. Recently, several transgenic reporter mice and zebrafishes have been generated in which the luciferase reporter gene are placed under the control of a promoter whose activity is strictly related to specific cancer cellular processes. Other mouse models have been generated by the cDNA luciferase knockin in the locus of a gene whose expression/activity has increased in cancer. Using BioLuminescence Imaging (BLI), we have now the opportunity to spatiotemporal visualize cell behaviors, among which proliferation, apoptosis, migration and immune responses, in any body district in living animal in a time frame process. We provide here a review of the available models to visualized cancer and cancer-associated events in living animals by BLI and as they have been successful in identifying new stages of early tumor progression, new interactions between different tissues and new therapeutic responsiveness.
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Affiliation(s)
- Isabella Manni
- UOSD SAFU, Department of Research, Diagnosis and Innovative Technologies, IRCCS-Regina Elena National Cancer Institute, Rome, Italy
| | - Luisa de Latouliere
- UOSD SAFU, Department of Research, Diagnosis and Innovative Technologies, IRCCS-Regina Elena National Cancer Institute, Rome, Italy
| | - Aymone Gurtner
- UOSD SAFU, Department of Research, Diagnosis and Innovative Technologies, IRCCS-Regina Elena National Cancer Institute, Rome, Italy
| | - Giulia Piaggio
- UOSD SAFU, Department of Research, Diagnosis and Innovative Technologies, IRCCS-Regina Elena National Cancer Institute, Rome, Italy
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11
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Chen Y, Huang P, Chen H, Wang S, Wang H, Guo J, Zhang X, Zhang S, Yan J, Xia J, Xu Z. Assessment of the Biocompatibility and Biological Effects of Biodegradable Pure Zinc Material in the Colorectum. ACS Biomater Sci Eng 2018; 4:4095-4103. [PMID: 33418809 DOI: 10.1021/acsbiomaterials.8b00957] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Little attention has been paid to the biocompatibility and biological effects of zinc as a material. Here, we therefore investigated the biocompatibility and anti-inflammatory and collagen-promoting effects of pure zinc material in the colorectum. Our in vitro results indicated that zinc toxicity and concentration were closely related. Low concentrations of zinc ions and pure zinc material extract had only minor effects on the viability of primary rectal mucosal epithelial cells; however, cytotoxicity was observed at concentrations greater than 0.017 μg/μL and 60%, respectively. In vivo experiments demonstrated that zinc pins degraded slowly in the colorectum (their volume decreasing by approximately 7.79% over 1 month) and did not cause serious adverse reactions. Pure zinc material was found to inhibit acute inflammation through increased expression of ENA-78 and F4/80. Moreover, zinc material heightened expression of collagen and VEGF, factors conducive to wound healing, in surrounding colorectal tissues. These preliminary results suggest that zinc shows great promise as an implant material for medical applications involving colorectal surgery.
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Affiliation(s)
| | | | - Hui Chen
- Department of Pathology, Nanjing Jinling Hospital, Nanjing University School of Medicine, Jiangsu 210000, People's Republic of China
| | | | | | | | - Xiaonong Zhang
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
| | - Shaoxiang Zhang
- Suzhou Origin Medical Technology Co. Ltd., 2 Haicheng Road, Changshu Economic and Technology Development Zone, Jiangsu 215513, People's Republic of China
| | - Jun Yan
- Department of General Surgery, Shanghai Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai 200233, China
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12
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Yektaseresht A, Razi Jalali M, Khadjeh G. Effect of Diclofenac on Hematological Parameters and Inflammatory Markers in Rat after Injection of Escherichia coli Lipopolysaccharide. INTERNATIONAL JOURNAL OF ENTERIC PATHOGENS 2018. [DOI: 10.15171/ijep.2018.21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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13
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Yang X, Sun R, Ci L, Wang N, Yang S, Shi J, Yang H, Zhang M, Fei J. Tracing the dynamic expression of the Nfκb2 gene during inflammatory processes by in vivo bioluminescence imaging in transgenic mice. Biochem Biophys Res Commun 2018; 501:41-47. [PMID: 29680659 DOI: 10.1016/j.bbrc.2018.04.126] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 04/16/2018] [Indexed: 02/08/2023]
Abstract
Nfκb2(p52/p100) plays essential roles in many chronic inflammatory diseases. Tracing the dynamic expression of Nfκb2 during different biological processes in vivo can provide valuable clues to understand the biological functions of this gene and develop anti-inflammatory drugs. In this study, B6-Tg(Nfκb2-luc)Mlit transgenic mouse line, a mouse model in which the expression of firefly luciferase gene is under the control of a 14.6-kb mouse Nfκb2 promoter, was generated to monitor the expression of p52/p100 in vivo. Bioluminescence imaging was used for tracking the luciferase signal in living mice in a variety of inflammatory processes, including LPS-induced sepsis and inflammatory bowel disease (IBD). The data of in vivo bioluminescence imaging in this mouse model showed that luciferase activity coincided with the endogenous p52/p100 expression. Moreover, dexamethasone or aspirin, two routine anti-inflammatory drugs, could decrease the high-level expression of luciferase induced by LPS. Overall, our results suggest that the B6-Tg(Nfκb2-luc)Mlit mice represent a valuable reporter mouse model not only to monitor the expression of p52/p100 in physiological or pathological processes but also to evaluate the effects of various anti-inflammatory drug treatments in vivo.
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Affiliation(s)
- Xingyu Yang
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030, China; Institute of Embryo-Fetal Original Adult Disease Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ruilin Sun
- Shanghai Engineering Research Center for Model Organisms, SRCMO/SMOC, Shanghai, 201203, China
| | - Lei Ci
- Shanghai Engineering Research Center for Model Organisms, SRCMO/SMOC, Shanghai, 201203, China
| | - Ning Wang
- School of Life Science & Technology, Tongji University, Shanghai, 200092, China
| | - Sai Yang
- School of Life Science & Technology, Tongji University, Shanghai, 200092, China
| | - Jiahao Shi
- School of Life Science & Technology, Tongji University, Shanghai, 200092, China
| | - Hua Yang
- School of Life Science & Technology, Tongji University, Shanghai, 200092, China
| | - Mengjie Zhang
- School of Life Science & Technology, Tongji University, Shanghai, 200092, China.
| | - Jian Fei
- School of Life Science & Technology, Tongji University, Shanghai, 200092, China; Shanghai Engineering Research Center for Model Organisms, SRCMO/SMOC, Shanghai, 201203, China.
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14
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Bjelobaba I, Begovic-Kupresanin V, Pekovic S, Lavrnja I. Animal models of multiple sclerosis: Focus on experimental autoimmune encephalomyelitis. J Neurosci Res 2018; 96:1021-1042. [PMID: 29446144 DOI: 10.1002/jnr.24224] [Citation(s) in RCA: 106] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 01/15/2018] [Accepted: 01/25/2018] [Indexed: 12/15/2022]
Abstract
Multiple sclerosis (MS) is a chronic, progressive disorder of the central nervous system (CNS) that affects more than two million people worldwide. Several animal models resemble MS pathology; the most employed are experimental autoimmune encephalomyelitis (EAE) and toxin- and/or virus-induced demyelination. In this review we will summarize our knowledge on the utility of different animal models in MS research. Although animal models cannot replicate the complexity and heterogeneity of the MS pathology, they have proved to be useful for the development of several drugs approved for treatment of MS patients. This review focuses on EAE because it represents both clinical and pathological features of MS. During the past decades, EAE has been effective in illuminating various pathological processes that occur during MS, including inflammation, CNS penetration, demyelination, axonopathy, and neuron loss mediated by immune cells.
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Affiliation(s)
- Ivana Bjelobaba
- Institute for Biological Research "Sinisa Stankovic," Department of Neurobiology, University of Belgrade, Belgrade, Serbia
| | | | - Sanja Pekovic
- Institute for Biological Research "Sinisa Stankovic," Department of Neurobiology, University of Belgrade, Belgrade, Serbia
| | - Irena Lavrnja
- Institute for Biological Research "Sinisa Stankovic," Department of Neurobiology, University of Belgrade, Belgrade, Serbia
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15
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Dynamic Changes in the Nigrostriatal Pathway in the MPTP Mouse Model of Parkinson's Disease. PARKINSONS DISEASE 2017; 2017:9349487. [PMID: 28831326 PMCID: PMC5555011 DOI: 10.1155/2017/9349487] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 05/09/2017] [Accepted: 06/28/2017] [Indexed: 12/11/2022]
Abstract
The characteristic brain pathology and motor and nonmotor symptoms of Parkinson's disease (PD) are well established. However, the details regarding the causes of the disease and its course are much less clear. Animal models have significantly enriched our current understanding of the progression of this disease. Among various neurotoxin-based models of PD, 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) mouse model is the most commonly studied model. Here, we provide an overview of the dynamic changes in the nigrostriatal pathway in the MPTP mouse model of PD. Pathophysiological events, such as reductions in the striatal dopamine (DA) concentrations and levels of the tyrosine hydroxylase (TH) protein, depletion of TH-positive nerve fibers, a decrease in the number of TH-positive neurons in the substantia nigra pars compacta (SNpc), and glial activation, are addressed. This article will assist with the development of interventions or therapeutic strategies for PD.
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16
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Ci L, Yang X, Gu X, Li Q, Guo Y, Zhou Z, Zhang M, Shi J, Yang H, Wang Z, Fei J. Cystathionine γ-Lyase Deficiency Exacerbates CCl 4-Induced Acute Hepatitis and Fibrosis in the Mouse Liver. Antioxid Redox Signal 2017; 27:133-149. [PMID: 27848249 DOI: 10.1089/ars.2016.6773] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
AIMS The present study examined the role of cystathionine γ-lyase (CSE) in carbon tetrachloride (CCl4)-induced liver damage. RESULTS A CSE gene knock-out and luciferase gene knock-in (KI) mouse model was constructed to study the function of CSE and to trace its expression in living status. CCl4 or lipopolysaccharide markedly downregulated CSE expression in the liver of mice. CSE-deficient mice showed increased serum alanine aminotransferase and aspartate aminotransferase levels, and liver damage after CCl4 challenge, whereas albumin and endogenous hydrogen sulfide (H2S) levels decreased significantly. CSE knockout mice showed increased serum homocysteine levels, upregulation of inflammatory cytokines, and increased autophagy and IκB-α degradation in the liver in response to CCl4 treatment. The increase in pro-inflammatory cytokines, including tumor necrosis factor-alpha in CSE-deficient mice after CCl4 challenge, was accompanied by a significant increase in liver tissue hydroxyproline and α-smooth muscle actin and histopathologic changes in the liver. However, H2S donor pretreatment effectively attenuated most of these imbalances. INNOVATION Here, a CSE knock-out and luciferase KI mouse model was established for the first time to study the transcriptional regulation of CSE expression in real time in a non-invasive manner, providing information on the effects and potential mechanisms of CSE on CCl4-induced liver injury. CONCLUSION CSE deficiency increases pro-inflammatory cytokines in the liver and exacerbates acute hepatitis and liver fibrosis by reducing H2S production from L-cysteine in the liver. The present data suggest the potential of an H2S donor for the treatment of liver diseases such as toxic hepatitis and fibrosis. Antioxid. Redox Signal. 27, 133-149.
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Affiliation(s)
- Lei Ci
- 1 School of Life Science and Techonology, Tongji University , Shanghai, China
| | - Xingyu Yang
- 1 School of Life Science and Techonology, Tongji University , Shanghai, China
| | - Xiaowen Gu
- 1 School of Life Science and Techonology, Tongji University , Shanghai, China
| | - Qing Li
- 1 School of Life Science and Techonology, Tongji University , Shanghai, China .,2 Shanghai Research Center for Model Organisms , Shanghai, China
| | - Yang Guo
- 1 School of Life Science and Techonology, Tongji University , Shanghai, China
| | - Ziping Zhou
- 1 School of Life Science and Techonology, Tongji University , Shanghai, China
| | - Mengjie Zhang
- 1 School of Life Science and Techonology, Tongji University , Shanghai, China
| | - Jiahao Shi
- 1 School of Life Science and Techonology, Tongji University , Shanghai, China
| | - Hua Yang
- 1 School of Life Science and Techonology, Tongji University , Shanghai, China
| | - Zhugang Wang
- 2 Shanghai Research Center for Model Organisms , Shanghai, China
| | - Jian Fei
- 1 School of Life Science and Techonology, Tongji University , Shanghai, China .,2 Shanghai Research Center for Model Organisms , Shanghai, China
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17
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Chen SP, Qin T, Seidel JL, Zheng Y, Eikermann M, Ferrari MD, van den Maagdenberg AMJM, Moskowitz MA, Ayata C, Eikermann-Haerter K. Inhibition of the P2X7-PANX1 complex suppresses spreading depolarization and neuroinflammation. Brain 2017; 140:1643-1656. [PMID: 28430869 DOI: 10.1093/brain/awx085] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2016] [Accepted: 02/12/2017] [Indexed: 01/09/2023] Open
Abstract
Spreading depolarization is a wave of neuronal and glial depolarization. Within minutes after spreading depolarization, the neuronal hemichannel pannexin 1 (PANX1) opens and forms a pore complex with the ligand-gated cation channel P2X7, allowing the release of excitatory neurotransmitters to sustain spreading depolarization and activate neuroinflammation. Here, we explore the hypothesis that the P2X7-PANX1 pore complex is a critical determinant of spreading depolarization susceptibility with important consequences for neuroinflammation and trigeminovascular activation. We found that genetic loss of function or ablation of the P2x7 gene inhibits spreading depolarization. Moreover, pharmacological suppression of the P2X7-PANX1 pore complex inhibits spreading depolarization in mice carrying the human familial hemiplegic migraine type 1 R192Q missense mutation as well as in wild-type mice and rats. Pore inhibitors elevate the electrical threshold for spreading depolarization, and reduce spreading depolarization frequency and amplitude. Pore inhibitors also suppress downstream consequences of spreading depolarization such as upregulation of interleukin-1 beta, inducible nitric oxide synthase and cyclooxygenase-2 in the cortex after spreading depolarization. In addition, they inhibit surrogates for trigeminovascular activation, including expression of calcitonin gene-related peptide in the trigeminal ganglion and c-Fos in the trigeminal nucleus caudalis. Our results are consistent with the hypothesis that the P2X7-PANX1 pore complex is a critical determinant of spreading depolarization susceptibility and its downstream consequences, of potential relevance to its signature disorders such as migraine.
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Affiliation(s)
- Shih-Pin Chen
- Neurovascular Research Lab, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, USA.,Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
| | - Tao Qin
- Neurovascular Research Lab, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, USA
| | - Jessica L Seidel
- Neurovascular Research Lab, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, USA
| | - Yi Zheng
- Neurovascular Research Lab, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, USA
| | - Matthias Eikermann
- Department of Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital, Boston, MA and Universitaet Duisburg Essen, Essen, Germany
| | - Michel D Ferrari
- Department of Neurology, Leiden University Medical Centre, 2300 RC Leiden, The Netherlands
| | - Arn M J M van den Maagdenberg
- Department of Neurology, Leiden University Medical Centre, 2300 RC Leiden, The Netherlands.,Department of Human Genetics, Leiden University Medical Centre, 2300 RC Leiden, The Netherlands
| | - Michael A Moskowitz
- Stroke and Neurovascular Regulation Laboratory, Departments of Radiology and Neurology, Massachusetts General Hospital, Charlestown, MA, USA
| | - Cenk Ayata
- Neurovascular Research Lab, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, USA.,Stroke Service and Neuroscience Intensive Care Unit, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Katharina Eikermann-Haerter
- Neurovascular Research Lab, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, USA
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18
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Suff N, Waddington SN. The power of bioluminescence imaging in understanding host-pathogen interactions. Methods 2017; 127:69-78. [PMID: 28694065 DOI: 10.1016/j.ymeth.2017.07.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 06/12/2017] [Accepted: 07/03/2017] [Indexed: 01/06/2023] Open
Abstract
Infectious diseases are one of the leading causes of death worldwide. Modelling and understanding human infection is imperative to developing treatments to reduce the global burden of infectious disease. Bioluminescence imaging is a highly sensitive, non-invasive technique based on the detection of light, produced by luciferase-catalysed reactions. In the study of infectious disease, bioluminescence imaging is a well-established technique; it can be used to detect, localize and quantify specific immune cells, pathogens or immunological processes. This enables longitudinal studies in which the spectrum of the disease process and its response to therapies can be monitored. Light producing transgenic rodents are emerging as key tools in the study of host response to infection. Here, we review the strategies for identifying biological processes in vivo, including the technology of bioluminescence imaging and illustrate how this technique is shedding light on the host-pathogen relationship.
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Affiliation(s)
- Natalie Suff
- Gene Transfer Technology Group, Institute for Women's Health, University College London, 86-96 Chenies Mews, London WC1E 6HX, United Kingdom.
| | - Simon N Waddington
- Gene Transfer Technology Group, Institute for Women's Health, University College London, 86-96 Chenies Mews, London WC1E 6HX, United Kingdom
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19
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Kostoula C, Pascente R, Ravizza T, McCown T, Schoch S, Vezzani A, Becker AJ, van Loo KMJ. Development of In Vivo Imaging Tools for Investigating Astrocyte Activation in Epileptogenesis. Mol Neurobiol 2017; 55:4463-4472. [DOI: 10.1007/s12035-017-0660-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 06/14/2017] [Indexed: 12/21/2022]
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20
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Xia J, Chen H, Yan J, Wu H, Wang H, Guo J, Zhang X, Zhang S, Zhao C, Chen Y. High-Purity Magnesium Staples Suppress Inflammatory Response in Rectal Anastomoses. ACS APPLIED MATERIALS & INTERFACES 2017; 9:9506-9515. [PMID: 28240546 DOI: 10.1021/acsami.7b00813] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Magnesium-based materials are promising biodegradable implants, although the impact of magnesium on rectal anastomotic inflammation is poorly understood. Thus, we investigated the inflammatory effects of high-purity Mg staples in rectal anastomoses by in vivo luciferase reporter gene expression in transgenic mice, hematoxylin-eosin staining, immunohistochemistry, and Western blotting. As expected, strong IL-1β-mediated inflammation and inflammatory cell infiltration were observed 1 day after rectal anastomoses were stapled with high-purity Mg or Ti. However, inflammation and inflammatory cell infiltration decreased more robustly 4-7 days postoperation in tissues stapled with high-purity Mg. This rapid reduction in inflammation was confirmed by immunohistochemical analysis of IL-6 and TNF-α. Western blot also suggested that the reduced inflammatory response is due to suppressed TLR4/NF-κB signaling. In contrast, MCP-1, uPAR, and VEGF were abundantly expressed, in line with the notion that expression of these proteins is regulated by feedback between the VEGF and NF-κB pathways. In vitro expression of MCP-1, uPAR, and VEGF was also similarly high in primary rectal mucosal epithelial cells exposed to extracts from Mg staples, as measured by antibody array. Collectively, the results suggest that high-purity Mg staples suppress the inflammatory response during rectal anastomoses via TLR4/NF-κB and VEGF signaling.
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Affiliation(s)
- Jiazeng Xia
- Department of General Surgery, Wuxi Second Hospital, Nanjing Medical University , Jiangsu 214002, People's Republic of China
| | - Hui Chen
- Department of Pathology, Nanjing General Hospital , Jiangsu 210002, People's Republic of China
| | - Jun Yan
- Department of General Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital , Shanghai 200233, People's Republic of China
| | - Hongliu Wu
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University , Shanghai 200240, People's Republic of China
| | - Hao Wang
- Department of General Surgery, Wuxi Second Hospital, Nanjing Medical University , Jiangsu 214002, People's Republic of China
| | - Jian Guo
- Department of General Surgery, Wuxi Second Hospital, Nanjing Medical University , Jiangsu 214002, People's Republic of China
| | - Xiaonong Zhang
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University , Shanghai 200240, People's Republic of China
| | - Shaoxiang Zhang
- Suzhou Origin Medical Technology Company Ltd. , 2 Haicheng Road, Changshu Economic and Technology Development Zone, Jiangsu 215513, People's Republic of China
| | - Changli Zhao
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University , Shanghai 200240, People's Republic of China
| | - Yigang Chen
- Department of General Surgery, Wuxi Second Hospital, Nanjing Medical University , Jiangsu 214002, People's Republic of China
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21
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Wang G, Hu Z, Fu Q, Song X, Cui Q, Jia R, Zou Y, He C, Li L, Yin Z. Resveratrol mitigates lipopolysaccharide-mediated acute inflammation in rats by inhibiting the TLR4/NF-κBp65/MAPKs signaling cascade. Sci Rep 2017; 7:45006. [PMID: 28322346 PMCID: PMC5359552 DOI: 10.1038/srep45006] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 02/17/2017] [Indexed: 01/01/2023] Open
Abstract
Resveratrol (RSV) is a natural compound exhibiting anti-inflammatory effect, but the anti-inflammatory mechanism has not been fully understood. This study is aimed to evaluate the anti-inflammatory activity and mechanism of RSV in lipopolysaccharides-induced rats’ model. The visceral wet/dry weight ratios and the changes of hematologic and biochemical indices indicated that LPS- stimulation mainly caused damages to liver and lung, while pretreatment with RSV could alleviate the lesions. The cytokine assays showed that RSV could markedly decrease the production of proinflammatory mediators and cytokines (IL-1, IL-1β, IL-6, NO, iNOS and COX-2), and increase the expression of anti-inflammatory mediator (IL-10). RSV could inhibit TLR4 signaling pathway by down-regulating the mRNA levels of MyD88 and TRAF6, and suppressing the TLR4 protein. RSV could inhibit the signaling cascades of NF-κBp65 and MAPKs through down-regulating the mRNA levels of IκBα, p38MAPK, JNK, ERK1, ERK2 and ERK5 in liver and lung, and suppressing the dynamic changes of proteins and phosphorylated proteins including IκBα, NF-κBp65, p38MAPK, JNK, ERK1/2 and ERK5 from tissue’s cytoplasm to nucleus. In conclusion, RSV possessed a therapeutic effect on LPS-induced inflammation in rats and the mechanism mainly attributed to suppressing the signaling cascades of NF-κBp65 and MAPKs by inhibiting the TLR4 signaling pathway.
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Affiliation(s)
- Guangxi Wang
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, China
| | - Zhiqiang Hu
- Key laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, China
| | - Qiuting Fu
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, China
| | - Xu Song
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, China
| | - Qiankun Cui
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, China
| | - Renyong Jia
- Key laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yuanfeng Zou
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, China
| | - Changliang He
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, China
| | - Lixia Li
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, China
| | - Zhongqiong Yin
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, China
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22
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Nezu A, Kubota T, Maruyama S, Nagata M, Nohno K, Morozumi T, Yoshie H. Expression of neprilysin in periodontitis-affected gingival tissues. Arch Oral Biol 2017; 79:35-41. [PMID: 28285126 DOI: 10.1016/j.archoralbio.2017.03.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 03/02/2017] [Accepted: 03/02/2017] [Indexed: 12/18/2022]
Abstract
OBJECTIVE Although the pathogeneses of Alzheimer's disease (AD) and periodontal diseases have overlapping features, including ageing and chronic inflammation, the association between AD and periodontitis remains unclear. To explore the pathogenesis of periodontitis, a comprehensive gene expression/transcriptome analysis in periodontitis-affected gingival tissues found that the AD pathway was significantly up-regulated in periodontitis-affected gingival tissues. AD-related genes, amyloid beta precursor protein (APP), interleukin-1 beta and compliment 1QA, were significantly elevated in periodontitis. In the present study, balance between mRNA expression of APP and a potent amyloid degradation enzyme, neprilysin (NEP), as well as protein localisation of APP and NEP were analysed. DESIGN Eighteen periodontitis-affected and 18 clinically healthy control gingival tissues were taken from patients with severe chronic periodontitis or undergoing tooth extraction. Total RNA was purified and used for quantitative reverse transcription real-time polymerase chain reaction (qRT-PCR). The localisation of APP and NEP was analysed by immunohistochemistry (IHC). RESULTS Both APP and NEP genes were up-regulated in periodontitis-affected gingival tissues. APP-expressing macrophages and NEP-expressing neutrophils and fibroblasts, reflecting inflammatory stages, were detected in inflamed gingival tissues by IHC. CONCLUSION The up-regulation of APP and NEP mRNA levels in periodontitis-affected gingival tissues compared with healthy controls was confirmed by qRT-PCR analyses. Since NEP is one of the primary enzymes that degrades amyloid beta, increased NEP mRNA levels in periodontitis may act as an inhibitor of amyloid beta accumulation in gingival tissues, balancing increased APP mRNA expression. However, NEP has several effects including degradation of vasoactive substances; therefore, further sresearch is needed.
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Affiliation(s)
- A Nezu
- Division of Periodontology, Department of Oral Biological Science, Niigata University Graduate School of Medical and Dental Sciences, Japan
| | - T Kubota
- Division of Periodontology, Department of Oral Biological Science, Niigata University Graduate School of Medical and Dental Sciences, Japan; Division of Periodontics, Department of Preventive and Conservative Dentistry, Niigata University Medical and Dental Hospital, Japan.
| | - S Maruyama
- Oral Pathology Section, Department of Surgical Pathology, Niigata University Medical and Dental Hospital, Japan
| | - M Nagata
- Division of Oral and Maxillofacial Surgery, Department of Health Science, Niigata University Graduate School of Medical and Dental Sciences, Japan
| | - K Nohno
- Division of Preventive Dentistry, Niigata University Graduate School of Medical and Dental Sciences, Japan
| | - T Morozumi
- Division of Periodontology, Department of Oral Biological Science, Niigata University Graduate School of Medical and Dental Sciences, Japan; Division of Periodontics, Department of Preventive and Conservative Dentistry, Niigata University Medical and Dental Hospital, Japan
| | - H Yoshie
- Division of Periodontology, Department of Oral Biological Science, Niigata University Graduate School of Medical and Dental Sciences, Japan; Division of Periodontics, Department of Preventive and Conservative Dentistry, Niigata University Medical and Dental Hospital, Japan
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Zambonelli P, Zappaterra M, Soglia F, Petracci M, Sirri F, Cavani C, Davoli R. Detection of differentially expressed genes in broiler pectoralis major muscle affected by White Striping – Wooden Breast myopathies. Poult Sci 2016; 95:2771-2785. [DOI: 10.3382/ps/pew268] [Citation(s) in RCA: 104] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 03/24/2016] [Accepted: 06/16/2016] [Indexed: 11/20/2022] Open
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Lee CM, Lee DS, Jung WK, Yoo JS, Yim MJ, Choi YH, Park S, Seo SK, Choi JS, Lee YM, Park WS, Choi IW. Benzyl isothiocyanate inhibits inflammasome activation in E. coli LPS-stimulated BV2 cells. Int J Mol Med 2016; 38:912-8. [PMID: 27430883 DOI: 10.3892/ijmm.2016.2667] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Accepted: 06/28/2016] [Indexed: 11/05/2022] Open
Abstract
Inflammasomes are multi-protein complexes that play a crucial role in innate immune responses. Benzyl isothiocyanate (BITC) is a naturally occurring compound found in cruciferous vegetables, and BITC exhibits potential as a chemopreventive agent. However, whether BITC exerts inflammasome-mediated regulatory effects on neuroinflammation is unknown. In this study, we examined the effects of BITC on inflammasome-mediated interleukin-1β (IL-1β) production in E. coli lipopolysaccharide (LPS)-stimulated BV2 microglial cells. IL-1β production is tightly regulated at the post-translational level through the inflammasoume. We measured the levels of IL-1β produced from the LPS-exposed BV2 microglial cells using enzyme-linked immunosorbent assays (ELISAs). The BITC regulatory mechanisms in inflammasome-mediated cellular signaling pathways were examined by RT-PCR, western blot analysis and electrophoretic mobility shift assays. BITC inhibited the secretion of IL-1β induced by LPS in the BV2 microglial cells. BITC inhibited inflammasome activation and NLR family, pyrin domain containing 3 (NLRP3)-mediated caspase-1 activation, and decreased the levels of inflammasome activation pro-inflammatory mediators, including mitochondrial reactive oxygen species (ROS) and adenosine triphosphate (ATP) secretion in the LPS-stimulated BV2 microglial cells. Furthermore, we demonstrated that nuclear factor-κB (NF-κB) activation induced by LPS was inhibited by BITC, which may contribute to the attenuated secretion of IL-1β. These BITC-mediated inhibitory effects on IL-1β expression may thus regulate neuroinflammation through the inflammasome-mediated signaling pathway.
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Affiliation(s)
- Chang-Min Lee
- Department of Molecular Microbiology and Immunology, Warren Alpert School of Medicine, Providence, RI 02912, USA
| | - Dae-Sung Lee
- National Marine Biodiversity Institute of Korea, Seocheon, Republic of Korea
| | - Won-Kyo Jung
- Department of Biomedical Engineering, and Center for Marine-Integrated Biomedical Technology (BK21 Plus), Pukyong National University, Busan, Republic of Korea
| | - Jong Su Yoo
- National Marine Biodiversity Institute of Korea, Seocheon, Republic of Korea
| | - Mi-Jin Yim
- National Marine Biodiversity Institute of Korea, Seocheon, Republic of Korea
| | - Yung Hyun Choi
- Department of Biochemistry, College of Oriental Medicine, Dongeui University, Busan, Republic of Korea
| | - Saegwang Park
- Department of Microbiology and Immunology, College of Medicine, Inje University, Busan, Republic of Korea
| | - Su-Kil Seo
- Department of Microbiology and Immunology, College of Medicine, Inje University, Busan, Republic of Korea
| | - Jung Sik Choi
- Department of Internal Medicine, Busan Paik Hospital, College of Medicine, Inje University, Busan, Republic of Korea
| | - Young-Min Lee
- Department of Internal Medicine, Busan Paik Hospital, College of Medicine, Inje University, Busan, Republic of Korea
| | - Won Sun Park
- Department of Physiology, Kangwon National University School of Medicine, Chuncheon, Republic of Korea
| | - Il-Whan Choi
- Department of Microbiology and Immunology, College of Medicine, Inje University, Busan, Republic of Korea
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Göblös A, Danis J, Vas K, Bata-Csörgő Z, Kemény L, Széll M. Keratinocytes express functional CARD18, a negative regulator of inflammasome activation, and its altered expression in psoriasis may contribute to disease pathogenesis. Mol Immunol 2016; 73:10-8. [PMID: 27023378 DOI: 10.1016/j.molimm.2016.03.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Revised: 03/10/2016] [Accepted: 03/22/2016] [Indexed: 01/08/2023]
Abstract
Caspase recruitment domain family member 18 (CARD18, Iceberg) is known as a negative regulatory molecule that inhibits inflammatory events by terminating inflammasome activation due to a direct interaction with pro-caspase-1. During the investigation of molecular mechanisms in keratinocytes that contribute to the pathogenesis of psoriasis, we found that CARD18 expression differs in healthy and psoriatic skin; moreover, CARD18 demonstrated altered response under inflammatory conditions in healthy and psoriatic skin. In healthy skin, low basal CARD18 expression was detected, which showed significant elevation in response to inflammatory stimuli (lymphokine treatment or mechanical injury). In contrast, higher basal expression was observed in psoriatic non-involved skin, but no further induction could be detected. We demonstrated that keratinocytes express CARD18 both at mRNA and protein levels and the expression increased in parallel with differentiation. The investigation of cellular inflammatory processes revealed that psoriasis-associated danger signals triggered the expression of inflammasome components (AIM2, Caspase-1) and CARD18 as well as IL-1β production of keratinocytes. Furthermore, gene-specific silencing of CARD18 in cells treated with cytosolic DNA (poly(dA:dT)) resulted in increased IL-1β secretion, suggesting a negative regulatory role for CARD18 in keratinocyte inflammatory signaling. The differential regulation of CARD18 in healthy and psoriatic uninvolved epidermis may contribute to the susceptibility of psoriasis. Furthermore, our in vitro results indicate that CARD18 may contribute to the fine tuning of keratinocyte innate immune processes.
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Affiliation(s)
- Anikó Göblös
- Department of Dermatology and Allergology, University of Szeged, Korányifasor 6, H-6720 Szeged, Hungary.
| | - Judit Danis
- Department of Dermatology and Allergology, University of Szeged, Korányifasor 6, H-6720 Szeged, Hungary.
| | - Krisztina Vas
- Department of Dermatology and Allergology, University of Szeged, Korányifasor 6, H-6720 Szeged, Hungary.
| | - Zsuzsanna Bata-Csörgő
- Department of Dermatology and Allergology, University of Szeged, Korányifasor 6, H-6720 Szeged, Hungary; MTA-SZTE Dermatological Research Group, University of Szeged, Korányifasor 6, H-6720 Szeged, Hungary.
| | - Lajos Kemény
- Department of Dermatology and Allergology, University of Szeged, Korányifasor 6, H-6720 Szeged, Hungary; MTA-SZTE Dermatological Research Group, University of Szeged, Korányifasor 6, H-6720 Szeged, Hungary.
| | - Márta Széll
- MTA-SZTE Dermatological Research Group, University of Szeged, Korányifasor 6, H-6720 Szeged, Hungary; Department of Medical Genetics, University of Szeged, Somogyi u. 4, H-6720 Szeged, Hungary.
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26
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Transgenic mouse model for imaging of interleukin-1β-related inflammation in vivo. Sci Rep 2015; 5:17205. [PMID: 26598133 PMCID: PMC4657042 DOI: 10.1038/srep17205] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Accepted: 10/27/2015] [Indexed: 12/16/2022] Open
Abstract
Inflammation is a biological response associated with symptoms of various diseases, and its study is important in gaining an understanding of the pathological conditions of such diseases and in making strategic plans for promoting healing. It is therefore essential to develop technologies for the detection of inflammatory conditions. Interleukin-1β (IL-1β) is a proinflammatory cytokine produced and secreted mainly by monocytes and macrophages in response to inflammatory stimulation. The activation of IL-1β is regulated through transcriptional induction by the promoter and post-translational processing by the inflammasome. Here we have developed a reporter gene to monitor the activation status of IL-1β by using a dual regulation system and, by using the reporter gene, we have established a mouse model that permits low-invasive visualization of the inflammatory status. Previous reporter systems dependent on the transcription or processing of IL-1β show problems in terms of background noise or signal specificity. Our reporter system overcomes these weaknesses by combining advantages from regulation by a promoter and processing of IL-1β. Our mouse model detected specific physiological inflammation in the liver and pancreas caused by hepatitis or pancreatitis models, respectively. Our reporter gene and mouse model are therefore expected to become useful bioresources for future medical science.
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27
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Li F, Lv YN, Tan YS, Shen K, Zhai KF, Chen HL, Kou JP, Yu BY. An integrated pathway interaction network for the combination of four effective compounds from ShengMai preparations in the treatment of cardio-cerebral ischemic diseases. Acta Pharmacol Sin 2015; 36:1337-48. [PMID: 26456587 DOI: 10.1038/aps.2015.70] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2015] [Accepted: 07/12/2015] [Indexed: 12/26/2022] Open
Abstract
AIM SMXZF (a combination of ginsenoside Rb1, ginsenoside Rg1, schizandrin and DT-13) derived from Chinese traditional medicine formula ShengMai preparations) is capable of alleviating cerebral ischemia-reperfusion injury in mice. In this study we used network pharmacology approach to explore the mechanisms of SMXZF in the treatment of cardio-cerebral ischemic diseases. METHODS Based upon the chemical predictors, such as chemical structure, pharmacological information and systems biology functional data analysis, a target-pathway interaction network was constructed to identify potential pathways and targets of SMXZF in the treatment of cardio-cerebral ischemia. Furthermore, the most related pathways were verified in TNF-α-treated human vascular endothelial EA.hy926 cells and H2O2-treated rat PC12 cells. RESULTS Three signaling pathways including the NF-κB pathway, oxidative stress pathway and cytokine network pathway were demonstrated to be the main signaling pathways. The results from the gene ontology analysis were in accordance with these signaling pathways. The target proteins were found to be associated with other diseases such as vision, renal and metabolic diseases, although they exerted therapeutic actions on cardio-cerebral ischemic diseases. Furthermore, SMXZF not only dose-dependently inhibited the phosphorylation of NF-κB, p50, p65 and IKKα/β in TNF-α-treated EA.hy926 cells, but also regulated the Nrf2/HO-1 pathway in H2O2-treated PC12 cells. CONCLUSION NF-κB signaling pathway, oxidative stress pathway and cytokine network pathway are mainly responsible for the therapeutic actions of SMXZF against cardio-cerebral ischemic diseases.
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Lucarini R, Tozatti MG, Silva MLA, Gimenez VMM, Pauletti PM, Groppo M, Turatti ICC, Cunha WR, Martins CHG. Antibacterial and anti-inflammatory activities of an extract, fractions, and compounds isolated from Gochnatia pulchra aerial parts. ACTA ACUST UNITED AC 2015. [PMID: 26200228 PMCID: PMC4568810 DOI: 10.1590/1414-431x20154410] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This paper reports on the in vitro antibacterial and in
vivo anti-inflammatory properties of a hydroethanolic extract of the
aerial parts of Gochnatia pulchra (HEGP). It also describes the
antibacterial activity of HEGP fractions and of the isolated compounds genkwanin,
scutellarin, apigenin, and 3,5-O-dicaffeoylquinic acid, as evaluated by a broth
microdilution method. While HEGP and its fractions did not provide promising results,
the isolated compounds exhibited pronounced antibacterial activity. The most
sensitive microorganism was Streptococcus pyogenes, with minimum
inhibitory concentration (MIC) values of 100, 50 and 25 µg/mL for genkwanin and the
flavonoids apigenin and scutellarin, respectively. Genkwanin produced an MIC value of
25 µg/mL against Enterococcus faecalis. A paw edema model in rats
and a pleurisy inflammation model in mice aided investigation of the
anti-inflammatory effects of HEGP. This study also evaluated the ability of HEGP to
modulate carrageenan-induced interleukin-1 beta (IL-1β), tumor necrosis factor alpha
(TNF-α), and monocyte chemoattractant protein-1 (MCP-1) production. Orally
administered HEGP (250 and 500 mg/kg) inhibited carrageenan-induced paw edema.
Regarding carrageenan-induced pleurisy, HEGP at 50, 100, and 250 mg/kg diminished
leukocyte migration by 71.43%, 69.24%, and 73.34% (P<0.05), respectively. HEGP
suppressed IL-1β and MCP-1 production by 55% and 50% at 50 mg/kg (P<0.05) and 60%
and 25% at 100 mg/kg (P<0.05), respectively. HEGP abated TNF-α
production by macrophages by 6.6%, 33.3%, and 53.3% at 100, 250, and 500 mg/kg
(P<0.05), respectively. HEGP probably exerts anti-inflammatory effects by
inhibiting production of the pro-inflammatory cytokines TNF-α, IL-1β, and MCP-1.
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Affiliation(s)
- R Lucarini
- Núcleo de Pesquisas em Ciências Exatas e Tecnológicas, Universidade de Franca, Franca, SP, BR
| | - M G Tozatti
- Núcleo de Pesquisas em Ciências Exatas e Tecnológicas, Universidade de Franca, Franca, SP, BR
| | - M L A Silva
- Núcleo de Pesquisas em Ciências Exatas e Tecnológicas, Universidade de Franca, Franca, SP, BR
| | | | - P M Pauletti
- Núcleo de Pesquisas em Ciências Exatas e Tecnológicas, Universidade de Franca, Franca, SP, BR
| | - M Groppo
- Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, BR
| | - I C C Turatti
- Departamento de Física e Química, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, BR
| | - W R Cunha
- Núcleo de Pesquisas em Ciências Exatas e Tecnológicas, Universidade de Franca, Franca, SP, BR
| | - C H G Martins
- Núcleo de Pesquisas em Ciências Exatas e Tecnológicas, Universidade de Franca, Franca, SP, BR
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Anti-inflammatory activity of curcumin-loaded solid lipid nanoparticles in IL-1β transgenic mice subjected to the lipopolysaccharide-induced sepsis. Biomaterials 2015; 53:475-83. [DOI: 10.1016/j.biomaterials.2015.02.116] [Citation(s) in RCA: 123] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 02/23/2015] [Accepted: 02/27/2015] [Indexed: 12/14/2022]
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Xu J, Bu L, Huang L, Yang Y, Yu M, Liu J, Wang P, Huang D, Bai X, Ma Y, Huang F, Zou Y, Ge J. Heart failure having little effect on the progression of Parkinson's disease: direct evidence from mouse model. Int J Cardiol 2014; 177:683-9. [PMID: 25449484 DOI: 10.1016/j.ijcard.2014.09.157] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Accepted: 09/27/2014] [Indexed: 10/24/2022]
Affiliation(s)
- Jing Xu
- State Key Laboratory of Medical Neurobiology and Institutes of Brain Science, Shanghai Medical College, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Liping Bu
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai 200032, China; Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China
| | - Li Huang
- State Key Laboratory of Medical Neurobiology and Institutes of Brain Science, Shanghai Medical College, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Yufang Yang
- State Key Laboratory of Medical Neurobiology and Institutes of Brain Science, Shanghai Medical College, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Mei Yu
- State Key Laboratory of Medical Neurobiology and Institutes of Brain Science, Shanghai Medical College, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Jie Liu
- State Key Laboratory of Medical Neurobiology and Institutes of Brain Science, Shanghai Medical College, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Pan Wang
- State Key Laboratory of Medical Neurobiology and Institutes of Brain Science, Shanghai Medical College, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Dongping Huang
- State Key Laboratory of Medical Neurobiology and Institutes of Brain Science, Shanghai Medical College, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Xiaochen Bai
- State Key Laboratory of Medical Neurobiology and Institutes of Brain Science, Shanghai Medical College, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Yuanyuan Ma
- State Key Laboratory of Medical Neurobiology and Institutes of Brain Science, Shanghai Medical College, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
| | - Fang Huang
- State Key Laboratory of Medical Neurobiology and Institutes of Brain Science, Shanghai Medical College, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China; Key Laboratory of Smart Drug Delivery, Ministry of Education & PLA, Fudan University, Shanghai 201203, China.
| | - Yunzeng Zou
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai 200032, China; Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China.
| | - Junbo Ge
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai 200032, China; Institutes of Biomedical Sciences, Fudan University, Shanghai 200032, China.
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Moeinian M, Ghasemi-Niri SF, Mozaffari S, Abdolghaffari AH, Baeeri M, Navaea-Nigjeh M, Abdollahi M. Beneficial effect of butyrate, Lactobacillus casei and L-carnitine combination in preference to each in experimental colitis. World J Gastroenterol 2014; 20:10876-10885. [PMID: 25152589 PMCID: PMC4138466 DOI: 10.3748/wjg.v20.i31.10876] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2013] [Revised: 02/11/2014] [Accepted: 04/09/2014] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the beneficial effect of the combination of butyrate, Lactobacillus casei, and L-carnitine in a rat colitis model.
METHODS: Rats were divided into seven groups. Four groups received oral butyrate, L-carnitine, Lactobacillus casei and the combination of three agents for 10 consecutive days. The remaining groups included negative and positive controls and a sham group. Macroscopic, histopathological examinations, and biomarkers such as tumor necrosis factor-alpha (TNF-α) and interlukin-1β (IL-1β), myeloperoxidase (MPO), thiobarbituric acid reactive substances (TBARS), and ferric reduced ability of plasma (FRAP) were determined in the colon.
RESULTS: The combination therapy exhibited a significant beneficial effect in alleviation of colitis compared to controls. Overall changes in reduction of TNF-α (114.66 ± 18.26 vs 171.78 ± 9.48 pg/mg protein, P < 0.05), IL-1β (24.9 ± 1.07 vs 33.06 ± 2.16 pg/mg protein, P < 0.05), TBARS (0.2 ± 0.03 vs 0.49 ± 0.04 μg/mg protein, P < 0.01), MPO (15.32 ± 0.4 vs 27.24 ± 3.84 U/mg protein, P < 0.05), and elevation of FRAP (23.46 ± 1.2 vs 15.02 ± 2.37 μmol/L, P < 0.05) support the preference of the combination therapy in comparison to controls. Although the monotherapies were also effective in improvement of colitis markers, the combination therapy was much better in improvement of colon oxidative stress markers including FRAP, TBARS, and MPO.
CONCLUSION: The present combination is a suitable mixture in control of experimental colitis and should be trialed in the clinical setting.
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Banerjee S, Leptin M. Systemic response to ultraviolet radiation involves induction of leukocytic IL-1β and inflammation in zebrafish. THE JOURNAL OF IMMUNOLOGY 2014; 193:1408-15. [PMID: 24965777 DOI: 10.4049/jimmunol.1400232] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Ultraviolet radiation is a pervasive stimulus with wide-ranging effects on all living forms. The effects of UV vary from physiological to pathological, depending on levels of exposure, but the immune response at the organismal level is not well understood. We use the zebrafish embryo and larva to study immune responses to UV stress in vivo. UV exposure causes inflammation characterized by systemic induction of proinflammatory cytokines. Leukocytes are an important component of this systemic response and upregulate IL-1β expression proportional to the dose of UV exposure. Increased levels of this proinflammatory cytokine counteract the lethal effect of high doses of UV.
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Affiliation(s)
- Sanjita Banerjee
- Institute of Genetics, University of Cologne, 50674 Cologne, Germany; and European Molecular Biology Laboratory, 69117 Heidelberg, Germany
| | - Maria Leptin
- Institute of Genetics, University of Cologne, 50674 Cologne, Germany; and European Molecular Biology Laboratory, 69117 Heidelberg, Germany
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Liu H, Wise SG, Rnjak-Kovacina J, Kaplan DL, Bilek MM, Weiss AS, Fei J, Bao S. Biocompatibility of silk-tropoelastin protein polymers. Biomaterials 2014; 35:5138-47. [DOI: 10.1016/j.biomaterials.2014.03.024] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Accepted: 03/12/2014] [Indexed: 01/09/2023]
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Saleh A, Chowdhury SKR, Smith DR, Balakrishnan S, Tessler L, Schartner E, Bilodeau A, Van Der Ploeg R, Fernyhough P. Diabetes impairs an interleukin-1β-dependent pathway that enhances neurite outgrowth through JAK/STAT3 modulation of mitochondrial bioenergetics in adult sensory neurons. Mol Brain 2013; 6:45. [PMID: 24152426 PMCID: PMC4016027 DOI: 10.1186/1756-6606-6-45] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Accepted: 10/21/2013] [Indexed: 01/07/2023] Open
Abstract
Background A luminex-based screen of cytokine expression in dorsal root ganglia (DRG) and nerve of type 1 diabetic rodents revealed interleukin-1 (IL-1α) and IL-1β to be significantly depressed. We, therefore, tested the hypothesis that impaired IL-1α and IL-1β expression in DRG may contribute to aberrant axon regeneration and plasticity seen in diabetic sensory neuropathy. In addition, we determined if these cytokines could optimize mitochondrial bioenergetics since mitochondrial dysfunction is a key etiological factor in diabetic neuropathy. Results Cytokines IL-1α and IL-1β were reduced 2-fold (p<0.05) in DRG and/or nerve of 2 and 5 month streptozotocin (STZ)-diabetic rats. IL-2 and IL-10 were unchanged. IL-1α and IL-1β induced similar 2 to 3-fold increases in neurite outgrowth in cultures derived from control or diabetic rats (p<0.05). STAT3 phosphorylation on Tyr705 or Ser727 was depressed in DRG from STZ-diabetic mice and treatment of cultures derived from STZ-diabetic rats with IL-1β for 30 min raised phosphorylation of STAT3 on Tyr705 and Ser727 by 1.5 to 2-fold (p<0.05). shRNA-based or AG490 inhibition of STAT3 activity or shRNA blockade of endogenous IL-1β expression completely blocked neurite outgrowth. Cultured neurons derived from STZ-diabetic mice were treated for 24 hr with IL-1β and maximal oxygen consumption rate and spare respiratory capacity, both key measures of bioenergetic fidelity that were depressed in diabetic compared with control neurons, were enhanced 2-fold. This effect was blocked by AG490. Conclusions Endogenous synthesis of IL-1β is diminished in nerve tissue in type 1 diabetes and we propose this defect triggers reduced STAT3 signaling and mitochondrial function leading to sup-optimal axonal regeneration and plasticity.
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Affiliation(s)
- Ali Saleh
- Division of Neurodegenerative Disorders, St, Boniface Hospital Research Centre, R4048 - 351 Tache Ave, Winnipeg, MB R2H 2A6, Canada.
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35
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Li L, Liu Z, Yang X, Yan H, Bao S, Fei J. Bioluminescence imaging for IL-1β expression in experimental colitis. JOURNAL OF INFLAMMATION-LONDON 2013; 10:16. [PMID: 23577872 PMCID: PMC3636018 DOI: 10.1186/1476-9255-10-16] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2012] [Accepted: 04/03/2013] [Indexed: 12/29/2022]
Abstract
Background Interleukin 1 beta (IL-1β) contributes to the development of inflammatory bowel disease (IBD) and is correlated with the severity of intestinal inflammation. However, the precise source of IL-1β producing cells in DSS colitis is currently not known. Methods To determine IL-1β activity during intestinal inflammation in real time, an IL-1β transgenic mouse has been generated by incorporating the firefly luciferase gene driven by a 4.5-kb fragment of human IL-1β gene promoter (named cHS4I-hIL-1βP-Luc transgenic mice). Dextran sodium sulfate (DSS) induced colitis was confirmed with clinical presentation and histopathology. Results A substantial increase in luciferase activity (reflecting IL-1β production) in the region of inflamed colon was observed in a time dependent manner, followed by additional activity in the region of the mesenteric lymph node. The up-regulated luciferase activity was suppressed by dexamethasone (steroids) during DSS challenge, consistent with reduced severity of colitis, confirming the specificity of luciferase activity. Conclusions Our data suggests that bioluminescence is an interesting technology, which may be used to evaluate transcription of various genes in real time in experimental colitis.
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Affiliation(s)
- Limei Li
- Shanghai Research Centre for Model Organisms, Shanghai 201203, PR China.,State Key Laboratory of Cell Biology, Institute of Biochemistry and Cell biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200031, PR China.,Currently working at: State Key Laboratory of Cell Biology, Institute of Biochemistry and Cell biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200031, PR China
| | - Zhenzhe Liu
- School of Life Science and Technology, Tongji University, Shanghai 200092, PR China
| | - Xinyu Yang
- School of Life Science and Technology, Tongji University, Shanghai 200092, PR China
| | - Huimin Yan
- Shanghai Research Centre for Model Organisms, Shanghai 201203, PR China
| | - Shisan Bao
- School of Life Science and Technology, Tongji University, Shanghai 200092, PR China.,Discipline of Pathology and Bosch Institute, School of Medical Sciences, University of Sydney, Sydney, NSW, 2006, Australia
| | - Jian Fei
- School of Life Science and Technology, Tongji University, Shanghai 200092, PR China.,Shanghai Research Centre for Model Organisms, Shanghai 201203, PR China
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Yang X, Jing H, Zhao K, Sun R, Liu Z, Ying Y, Ci L, Kuang Y, Huang F, Wang Z, Fei J. Functional imaging of Rel expression in inflammatory processes using bioluminescence imaging system in transgenic mice. PLoS One 2013; 8:e57632. [PMID: 23469037 PMCID: PMC3585201 DOI: 10.1371/journal.pone.0057632] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2012] [Accepted: 01/22/2013] [Indexed: 12/11/2022] Open
Abstract
c-Rel plays important roles in many inflammatory diseases. Revealing the dynamic expression of c-Rel in disease processes in vivo is critical for understanding c-Rel functions and for developing anti-inflammatory drugs. In this paper, a transgenic mouse line, B6-Tg(c-Rel-luc)(Mlit), which incorporated the transgene firefly luciferase driven by a 14.5-kb fragment containing mouse c-Rel gene Rel promoter, was generated to monitor Rel expression in vivo. Luciferase expression could be tracked in living mice by the method of bioluminescence imaging in a variety of inflammatory processes, including LPS induced sepsis and EAE disease model. The luciferase expression in transgenic mice was comparable to the endogenous Rel expression and could be suppressed by administration of anti-inflammatory drug dexamethasone or aspirin. These results indicate that the B6-Tg(c-Rel-luc)(Mlit) mouse is a valuable animal model to study Rel expression in physiological and pathological processes, and the effects of various drug treatments in vivo.
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Affiliation(s)
- Xingyu Yang
- School of Life Science and Technology, Tongji University, Shanghai, China
| | - Hua Jing
- School of Life Science and Technology, Tongji University, Shanghai, China
| | - Kai Zhao
- School of Life Science and Technology, Tongji University, Shanghai, China
| | - Ruilin Sun
- Shanghai Research Center for Model Organisms, Shanghai, China
| | - Zhenze Liu
- School of Life Science and Technology, Tongji University, Shanghai, China
| | - Yue Ying
- School of Life Science and Technology, Tongji University, Shanghai, China
| | - Lei Ci
- School of Life Science and Technology, Tongji University, Shanghai, China
| | - Ying Kuang
- Shanghai Research Center for Model Organisms, Shanghai, China
| | - Fang Huang
- National Key Laboratory of Medical Neurobiology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Zhugang Wang
- Shanghai Research Center for Model Organisms, Shanghai, China
| | - Jian Fei
- School of Life Science and Technology, Tongji University, Shanghai, China
- Shanghai Research Center for Model Organisms, Shanghai, China
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Abstract
Bioluminescence imaging (BLI) takes advantage of the light-emitting properties of luciferase enzymes, which produce light upon oxidizing a substrate (i.e., D-luciferin) in the presence of molecular oxygen and energy. Photons emitted from living tissues can be detected and quantified by a highly sensitive charge-coupled device camera, enabling the investigator to noninvasively analyze the dynamics of biomolecular reactions in a variety of living model organisms such as transgenic mice. BLI has been used extensively in cancer research, cell transplantation, and for monitoring of infectious diseases, but only recently experimental models have been designed to study processes and pathways in neurological disorders such as Alzheimer disease, Parkinson disease, or amyotrophic lateral sclerosis. In this review, we highlight recent applications of BLI in neuroscience, including transgene expression in the brain, longitudinal studies of neuroinflammatory responses to neurodegeneration and injury, and in vivo imaging studies of neurogenesis and mitochondrial toxicity. Finally, we highlight some new developments of BLI compounds and luciferase substrates with promising potential for in vivo studies of neurological dysfunctions.
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Affiliation(s)
- Katja Hochgräfe
- DZNE (German Center for Neurodegenerative Diseases), Ludwig-Erhard-Allee 2, 53175 Bonn, Germany
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Nounou HA, Deif MM, Shalaby MA. Effect of flaxseed supplementation and exercise training on lipid profile, oxidative stress and inflammation in rats with myocardial ischemia. Lipids Health Dis 2012; 11:129. [PMID: 23036047 PMCID: PMC3508923 DOI: 10.1186/1476-511x-11-129] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2012] [Accepted: 10/02/2012] [Indexed: 02/01/2023] Open
Abstract
Background Flaxseed has recently gained attention in the area of cardiovascular disease primarily because of its rich contents of α-linolenic acid (ALA), lignans, and fiber. Although the benefits of exercise on any single risk factor are unquestionable, the effect of exercise on overall cardiovascular risk, when combined with other lifestyle modifications such as proper nutrition, can be dramatic. This study was carried out to evaluate the protective role of flaxseed and exercise on cardiac markers, lipids profile and inflammatory markers in isoproterenol (ISO)-induced myocardial ischemia in rats. Methods The research was conducted on 40 male albino rats, divided into 4 groups (n=10): group I served as control, group II has acute myocardial ischemia induced by isoproterenol, groups III and IV have acute myocardial ischemia induced by isoproterenol pretreated with flaxseed supplementation orally for 6 weeks, additionally group IV practiced muscular exercise through swimming. Results Alterations of lipid profile, cardiac and inflammatory markers (Il-1β, PTX 3 and TNF- α) were observed in myocardial ischemia group. Flaxseed supplementation combined with exercise training showed significant increase of HDL and PON 1, on the other hand cardiac troponin, Il- 1β and TNF- α levels significantly decreased as compared to myocardial ischemic group. Receiver Operating Characteristics (ROC) analysis of cTnI, PTX 3, Il-1β and TNF- α revealed a satisfactory level of sensitivity and specificity. Conclusion Regular exercise enhances the improvement in plasma lipoprotein levels and cardiovascular protection that results from flaxseed supplementation by mitigating the pathophysiology of atherosclerosis. Elevation of HDL, the antioxidant PON 1 and the cardioprotective marker PTX 3 emphasizes the protective effects of flaxseed and muscular exercise mutually against the harmful effects of acute myocardial ischemia.
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Affiliation(s)
- Howaida A Nounou
- Department of Medical Biochemistry, Faculty of Medicine, Alexandria University, Alexandria, Egypt.
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Nasti TH, Timares L. Inflammasome activation of IL-1 family mediators in response to cutaneous photodamage. Photochem Photobiol 2012; 88:1111-25. [PMID: 22631445 DOI: 10.1111/j.1751-1097.2012.01182.x] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Although keratinocytes are relatively resistant to ultraviolet radiation (UVR) induced damage, repeated UVR exposure result in accumulated DNA mutations that can lead to epidermal malignancies. Keratinocytes play a central role in elaborating innate responses that lead to inflammation and influence the generation of adaptive immune responses in skin. Apart from the minor cellular constituents of the epidermis, specifically Langerhans cells and melanocytes, keratinocytes are the major source of cytokines. UVR exposure stimulates keratinocytes to secrete abundant pro-inflammatory IL-1-family proteins, IL-1α, IL-1β, IL-18, and IL-33. Normal skin contains only low levels of inactive precursor forms of IL-1β and IL-18, which require caspase 1-mediated proteolysis for their maturation and secretion. However, caspase-1 activation is not constitutive, but dependents on the UV-induced formation of an active inflammasome complex. IL-1 family cytokines can induce a secondary cascade of mediators and cytokines from keratinocytes and other cells resulting in wide range of innate processes including infiltration of inflammatory leukocytes, induction of immunosuppression, DNA repair or apoptosis. Thus, the ability of keratinocytes to produce a wide repertoire of proinflammatory cytokines can influence the immune response locally as well as systematically, and alter the host response to photodamaged cells. We will highlight differential roles played by each IL-1 family molecule generated by UV-damaged keratinocytes, and reveal their complementary influences in modulating acute inflammatory and immunological events that follow cutaneous UV exposure.
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Affiliation(s)
- Tahseen H Nasti
- Department of Dermatology, University of Alabama at Birmingham, Birmingham, AL, USA
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Chua KH, Lian LH, Kee BP, Thum CM, Lee WS, Hilmi I, Goh KL. Identification of DLG5 and SLC22A5 gene polymorphisms in Malaysian patients with Crohn's disease. J Dig Dis 2011; 12:459-66. [PMID: 22118696 DOI: 10.1111/j.1751-2980.2011.00533.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE The aim of this study was to investigate the association of DLG5 and SLC22A5 gene polymorphisms with the onset of Crohn's disease (CD) in a Malaysian cohort. METHODS Genomic DNA of 80 CD patients and 100 healthy unrelated control individuals was extracted and analyzed via polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) on DLG5 (4136 C/A), DLG5_e26 and SLC22A5 (-207 G/C) genetic polymorphisms. Data obtained from the study were then subjected to statistical analysis to test for risk association. RESULTS Significant associations of both DLG5 polymorphisms with the development of CD in the Malaysian patients were observed in this study. The homozygous C genotype of the DLG5 polymorphism was significantly related to CD patients (P = 0.0023, OR = 2.5320), while the homozygous A was significant in control individuals (P = 0.0224, OR = 0.4480). In DLG5_e26 polymorphisms, we found a significant distribution of the homozygous insA genotype in CD patients (P = 0.0006, OR = 2.8916), whereas the heterozygous insA/delA genotype was significant in controls (P = 0.0007, OR = 0.3487). We hypothesized that there might be a complex interaction of both alleles, which confered a protective effect against the onset of CD. However, we did not observe any significant correlation of SLC22A5 polymorphisms with this disease. CONCLUSIONS In our study, both polymorphisms in the DLG5 gene were found to be associated with CD patients in Malaysia. Therefore, these loci can be potentially used as susceptibility markers in the Malaysian population.
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Affiliation(s)
- Kek Heng Chua
- Department of Molecular Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.
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Hillmann A, Hahn S, Schilling S, Hoffmann T, Demuth HU, Bulic B, Schneider-Axmann T, Bayer TA, Weggen S, Wirths O. No improvement after chronic ibuprofen treatment in the 5XFAD mouse model of Alzheimer's disease. Neurobiol Aging 2011; 33:833.e39-50. [PMID: 21943956 DOI: 10.1016/j.neurobiolaging.2011.08.006] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2011] [Revised: 08/08/2011] [Accepted: 08/16/2011] [Indexed: 12/24/2022]
Abstract
Ibuprofen is a nonsteroidal anti-inflammatory drug (NSAID) that has been reported to reduce the risk of developing Alzheimer's disease (AD). Its preventive effects in AD are likely pleiotropic as ibuprofen displays both anti-inflammatory activity by inhibition of cyclooxygenases and anti-amyloidogenic activity by modulation of γ-secretase. In order to study the anti-inflammatory properties of ibuprofen independent of its anti-amyloidogenic activity, we performed a long-term treatment study with ibuprofen in 5XFAD mice expressing a presenilin-1 mutation that renders this AD model resistant to γ-secretase modulation. As expected, ibuprofen treatment for 3 months resulted in a reduction of the inflammatory reaction in the 5XFAD mouse model. Importantly, an unchanged amyloid beta (Aβ) plaque load, an increase in soluble Aβ42 levels, and an aggravation of some behavioral parameters were noted, raising the question whether suppression of inflammation by nonsteroidal anti-inflammatory drug is beneficial in AD.
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Affiliation(s)
- Antje Hillmann
- Division of Molecular Psychiatry and Alzheimer Ph.D. Graduate School, Department of Psychiatry, University Medicine Goettingen, Goettingen, Germany
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Lopez de Heredia L, Gengatharan A, Foster J, Mather S, Magoulas C. Bioluminescence imaging of the brain response to acute inflammation in living C/EBP reporter mice. Neurosci Lett 2011; 497:134-8. [PMID: 21545825 DOI: 10.1016/j.neulet.2011.04.046] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2011] [Revised: 04/04/2011] [Accepted: 04/19/2011] [Indexed: 12/12/2022]
Abstract
The transcription factor CCAAT enhancer binding protein (C/EBP) is a key regulator of inflammation and immune responses, and recent studies suggest it is involved in inflammatory processes in the nervous system. We generated a transgenic reporter mouse model, carrying the luciferase (luc) gene under the transcriptional control of C/EBP, for visualising C/EBP activity in vivo. Real-time bioluminescence imaging reflecting C/EBP activity was performed in an acute inflammation model, after systemic administration of lipopolysaccharides (LPS), in C/EBP-luc mice. A striking activity of C/EBP was imaged predominantly in the brain of living C/EBP-luc mice in response to LPS, showing for the first time in vivo that C/EBP mediates the brain response to inflammation. Furthermore, dexamethasone, a potent anti-inflammatory agent, diminished the LPS-induced C/EBP activity demonstrating the physiological regulation of bioluminescence intensity in the brain of C/EBP-luc mice. Our results implicate that C/EBP reporter mice have the potential to be a valuable tool for studies on the mechanisms of brain inflammation in vivo and for the noninvasive preclinical evaluation of therapeutic agents targeting neuroinflammatory diseases.
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Affiliation(s)
- Luis Lopez de Heredia
- Centre for Neuroscience and Trauma, Blizard Institute of Cell and Molecular Science, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, 4 Newark Street, Whitechapel, London E12AT, UK
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Xie L, Takahara M, Nakahara T, Oba J, Uchi H, Takeuchi S, Moroi Y, Furue M. CD10-bearing fibroblasts may inhibit skin inflammation by down-modulating substance P. Arch Dermatol Res 2011; 303:49-55. [PMID: 21076839 DOI: 10.1007/s00403-010-1093-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2010] [Revised: 10/27/2010] [Accepted: 10/29/2010] [Indexed: 11/27/2022]
Abstract
Substance P (SP) is a multipotent neuropeptide that affects the proliferation, activation and motility of keratinocytes and fibroblasts (Fbs). SP in pulmonary and synovial cells is degraded by CD10, a 90- to 110-kDa cell surface zinc-dependent metalloprotease. However, the expression and function of CD10 in human dermal Fbs have not yet been investigated in vivo and in vitro specifically with reference to SP. Our immunohistologic study revealed moderate to strong fibroblastic CD10 expression in the majority of psoriasis vulgaris (16/16), chronic eczema (15/16), lichen planus (18/20) and atopic dermatitis (4/5). Keratinocytes showed no CD10 expression in vivo and in vitro. Cultured Fbs constitutively expressed CD10 and SP. CD10 expression was augmented by external interleukin (IL)-1β and IL-22, but not by IL-8 and IL-17A in Fbs. SP production was enhanced in CD10 knockdown-Fbs (CD10ND-Fbs) compared with control-Fbs. In the presence of IL-1β or IL-22, the enhancement of SP production was more prominent in CD10ND-Fbs than in control-Fbs, suggesting the down-modulating activity of CD10 on SP in cytokine-mediated inflammation. In conclusion, fibroblastic CD10 expression may down-regulate skin inflammation by degrading SP or reducing its level in the dermal microenvironment.
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Affiliation(s)
- Lining Xie
- Department of Dermatology, Kyushu University, Higashiku, Fukuoka, Japan
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44
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Kim EY, Shin HY, Kim JY, Kim DG, Choi YM, Kwon HK, Rhee DK, Kim YS, Choi S. ATF3 plays a key role in Kdo2-lipid A-induced TLR4-dependent gene expression via NF-κB activation. PLoS One 2010; 5:e14181. [PMID: 21152039 PMCID: PMC2996292 DOI: 10.1371/journal.pone.0014181] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2010] [Accepted: 11/11/2010] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Activating transcription factor 3 (ATF3) is a negative regulator of proinflammatory cytokine expression in macrophages, and ATF3 deficient mice are more susceptible to endotoxic shock. This study addresses the role of ATF3 in the Kdo(2)-Lipid A-induced Toll-like receptor 4 (TLR4) signaling pathway in mouse embryonic fibroblasts (MEF). Kdo(2)-Lipid A upregulates ATF3 expression in wild type MEF cells and induces both nuclear factor kappa B (NF-κB) and c-Jun N-terminal kinase (JNK) activation via the TLR4 signaling pathway, while neither of these pathways is activated in ATF3-/- MEF cells. Interestingly, in contrast to Kdo(2)-Lipid A, the activation of both NF-κB and JNK by TNF-α was normal in ATF3-/- MEF cells. METHODOLOGY/PRINCIPAL FINDINGS We found that several genes were dramatically upregulated in ATF3+/+ MEF cells in response to Kdo(2)-Lipid A treatment, while little difference was observed in the ATF3-/- MEF cells. However, we also found that the signal intensities of IκBζ in ATF3-/- MEF cells were substantially higher than those in wild type MEF cells upon microarray analyses, and upregulated IκBζ expression was detected in the cytosol fraction. CONCLUSIONS/SIGNIFICANCE Our findings indicate that ATF3 deficiency affects Kdo(2)-Lipid A-induced TLR4 signaling pathways in MEF cells, that it may upregulate IκBζ expression and that the high levels of IκBζ expression in ATF3-/- cells disrupts Kdo(2)-Lipid A-mediated signaling pathways.
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Affiliation(s)
- Eun-Young Kim
- Department of Molecular Science and Technology, Ajou University, Suwon, Korea
| | - Hye Young Shin
- Department of Molecular Science and Technology, Ajou University, Suwon, Korea
| | - Joo-Young Kim
- Institute for Medical Sciences, Ajou University School of Medicine, Suwon, Korea
| | - Dong-Gun Kim
- Institute for Medical Sciences, Ajou University School of Medicine, Suwon, Korea
| | - Yong-Min Choi
- Department of Molecular Science and Technology, Ajou University, Suwon, Korea
| | - Hyuk-Kwon Kwon
- Department of Molecular Science and Technology, Ajou University, Suwon, Korea
| | - Dong-Kwon Rhee
- School of Pharmacy, Sungkyunkwan University, Suwon, Korea
| | - You-Sun Kim
- Institute for Medical Sciences, Ajou University School of Medicine, Suwon, Korea
| | - Sangdun Choi
- Department of Molecular Science and Technology, Ajou University, Suwon, Korea
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Abstract
According to World Health Organization estimates, infectious organisms are responsible for approximately one in four deaths worldwide. Animal models play an essential role in the development of vaccines and therapeutic agents but large numbers of animals are required to obtain quantitative microbiological data by tissue sampling. Biophotonic imaging (BPI) is a highly sensitive, nontoxic technique based on the detection of visible light, produced by luciferase-catalysed reactions (bioluminescence) or by excitation of fluorescent molecules, using sensitive photon detectors. The development of bioluminescent/fluorescent microorganisms therefore allows the real-time noninvasive detection of microorganisms within intact living animals. Multiple imaging of the same animal throughout an experiment allows disease progression to be followed with extreme accuracy, reducing the number of animals required to yield statistically meaningful data. In the study of infectious disease, the use of BPI is becoming widespread due to the novel insights it can provide into established models, as well as the impact of the technique on two of the guiding principles of using animals in research, namely reduction and refinement. Here, we review the technology of BPI, from the instrumentation through to the generation of a photonic signal, and illustrate how the technique is shedding light on infection dynamics in vivo.
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Affiliation(s)
- Nuria Andreu
- Department of Medicine, Imperial College London, London, UK
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Matsushima H, Ogawa Y, Miyazaki T, Tanaka H, Nishibu A, Takashima A. Intravital imaging of IL-1beta production in skin. J Invest Dermatol 2010; 130:1571-80. [PMID: 20147964 DOI: 10.1038/jid.2010.11] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
IL-1 is a prototypic inflammatory cytokine that has pathogenic roles in various skin disorders. Although Langerhans cells (LCs) have been reported to express IL-1beta mRNA upon application of contact sensitizers, it remains unclear whether other cell types produce IL-1beta in skin. Thus, we sought to directly identify IL-1beta-producing cells in living animals by construction of transgenic mice expressing DsRed fluorescence protein gene under the control of IL-1beta promoter. Little DsRed fluorescence signal was detected in skin under steady-state conditions. Striking increases in DsRed signal were observed after topical application of a contact sensitizer, oxazolone, which also induced markedly elevated IL-1beta mRNA and protein expression. DsRed signal was expressed primarily by CD45(+)/CD11b(+) myeloid leukocytes in both epidermal and dermal compartments and was detected only in small fractions of epidermal LCs. Interestingly, DsRed(+) cells emerged preferentially as clusters around hair follicles. Intravital confocal imaging experiments revealed highly motile potentials of DsRed(+) cells-they constantly crawled around hair follicles via amoeba-like movements with a mean velocity of 1.0+/-0.4 microm min(-1) (epidermis) or 2.7+/-1.4 microm min(-1) (dermis). The newly developed in vivo imaging system represents a useful tool for studying spatial regulation of IL-1beta production in skin.
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Affiliation(s)
- Hironori Matsushima
- Department of Medical Microbiology and Immunology, University of Toledo College of Medicine, 3000 Arlington Avenue, Toledo, OH 43614, USA
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Bian MJ, Li LM, Yu M, Fei J, Huang F. Elevated interleukin-1β induced by 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine aggravating dopaminergic neurodegeneration in old male mice. Brain Res 2009; 1302:256-64. [DOI: 10.1016/j.brainres.2009.07.030] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2009] [Revised: 07/10/2009] [Accepted: 07/14/2009] [Indexed: 11/16/2022]
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Enhancement of reporter gene detection sensitivity by insertion of specific mini-peptide-coding sequences. Cancer Gene Ther 2009; 17:131-40. [PMID: 19713998 DOI: 10.1038/cgt.2009.54] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Two important aspects of gene therapy are to increase the level of gene expression and track the gene delivery site and expression, and a sensitive reporter gene may be one of the options for preclinical studies and possibly for human clinical trials. We report the novel concept of increasing the activity of the gene products. With the insertion of the mini-peptide-coding sequence CWDDWLC into the plasmid DNA of a SEAP reporter gene, we observed vast increases in the enzyme activity in vitro in all murine and human cell lines used. In addition, in vivo injection of this CWDDWLC-SEAP-encoding gene resulted in the same increases in reporter gene activity, but these increases did not correspond to alterations in the level of the gene products in the serum. Minor sequence changes in this mini-peptide negate the activity increase of the reporter gene. We report the novel concept of increasing the activity of gene products as another method to improve the reporting sensitivity of reporter genes. This improved reporter gene could complement any improved vector for maximizing the reporter sensitivity. Moreover, this strategy has the potential to be used to discover peptides that improve the activity of therapeutic genes.
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