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El-Naggar AE, Helmy MM, El-Gowilly SM, El-Mas MM. Suppression by central adenosine A3 receptors of the cholinergic defense against cardiovascular aberrations of sepsis: role of PI3K/MAPKs/NFκB signaling. Front Pharmacol 2024; 15:1418981. [PMID: 38966542 PMCID: PMC11222418 DOI: 10.3389/fphar.2024.1418981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Accepted: 06/06/2024] [Indexed: 07/06/2024] Open
Abstract
Introduction: Despite the established role of peripheral adenosine receptors in sepsis-induced organ dysfunction, little or no data is available on the interaction of central adenosine receptors with sepsis. The current study tested the hypothesis that central adenosine A3 receptors (A3ARs) modulate the cardiovascular aberrations and neuroinflammation triggered by sepsis and their counteraction by the cholinergic antiinflammatory pathway. Methods: Sepsis was induced by cecal ligation and puncture (CLP) in rats pre-instrumented with femoral and intracisternal (i.c.) catheters for hemodynamic monitoring and central drug administration, respectively. Results: The CLP-induced hypotension, reduction in overall heart rate variability (HRV) and sympathovagal imbalance towards parasympathetic predominance were abolished by i.v. nicotine (100 μg/kg) or i.c. VUF5574 (A3AR antagonist, 2 µg/rat). In addition, the selective A3AR agonist, 3-iodobenzyl-5'-N-methylcarboxamidoadenosine IB-MECA, 4 µg/rat, i.c.) exaggerated the hypotension and cardiac autonomic dysfunction induced by sepsis and opposed the favorable nicotine actions against these septic manifestations. Immunohistochemically, IB-MECA abolished the nicotine-mediated downregulation of NFκB and NOX2 expression in rostral ventrolateral medullary areas (RVLM) of brainstem of septic rats. The inhibitory actions of IB-MECA on nicotine responses disappeared after i.c. administration of PD98059 (MAPK-ERK inhibitor), SP600125 (MAPK-JNK inhibitor) or wortmannin (PI3K inhibitor). Moreover, infliximab (TNFα inhibitor) eliminated the IB-MECA-induced rises in RVLM-NFκB expression and falls in HRV, but not blood pressure. Conclusion: Central PI3K/MAPKs pathway mediates the A3AR counteraction of cholinergic defenses against cardiovascular and neuroinflammatory aberrations in sepsis.
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Affiliation(s)
- Amany E. El-Naggar
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Mai M. Helmy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Sahar M. El-Gowilly
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Mahmoud M. El-Mas
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
- Department of Pharmacology and Toxicology, College of Medicine, Kuwait University, Kuwait City, Kuwait
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2
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Ashiqueali SA, Chaudhari D, Zhu X, Noureddine S, Siddiqi S, Garcia DN, Gostynska A, Stawny M, Rubis B, Zanini BM, Mansoor MAM, Schneider A, Naser SA, Yadav H, Masternak MM. Fisetin modulates the gut microbiota alongside biomarkers of senescence and inflammation in a DSS-induced murine model of colitis. GeroScience 2024; 46:3085-3103. [PMID: 38191834 PMCID: PMC11009197 DOI: 10.1007/s11357-024-01060-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Accepted: 01/01/2024] [Indexed: 01/10/2024] Open
Abstract
Colitis, a subtype of inflammatory bowel disease (IBD), is a multifactorial disorder characterized by chronic inflammation of the colon. Among various experimental models used in the study of IBD, the chemical colitogenic dextran sulfate sodium (DSS) is most commonly employed to induce colitis in vivo. In the search for new therapeutic strategies, Fisetin, a flavonoid found in many fruits and vegetables, has recently garnered attention for its senolytic properties. Female mice were administered 2.5% DSS in sterile drinking water and were subsequently treated with Fisetin or vehicle by oral gavage. DSS significantly upregulated beta-galactosidase activity in colonic proteins, while Fisetin remarkably inhibited its activity to baseline levels. Particularly, qPCR revealed that the senescence and inflammation markers Vimentin and Ptgs2 were elevated by DSS exposure with Fisetin treatment inhibiting the expression of p53, Bcl2, Cxcl1, and Mcp1, indicating that the treatment reduced senescent cell burden in the DSS targeted intestine. Alongside, senescence and inflammation associated miRNAs miR-149-5p, miR-96-5p, miR-34a-5p, and miR-30e-5p were significantly inhibited by DSS exposure and restored by Fisetin treatment, revealing novel targets for the treatment of IBDs. Metagenomics was implemented to assess impacts on the microbiota, with DSS increasing the prevalence of bacteria in the phyla Bacteroidetes. Meanwhile, Fisetin restored gut health through increased abundance of Akkermansia muciniphila, which is negatively correlated with senescence and inflammation. Our study suggests that Fisetin mitigates DSS-induced colitis by targeting senescence and inflammation and restoring beneficial bacteria in the gut indicating its potential as a therapeutic intervention for IBDs.
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Affiliation(s)
- Sarah A Ashiqueali
- University of Central Florida College of Medicine, Burnett School of Biomedical Sciences, Orlando, FL, USA
| | - Diptaraj Chaudhari
- University of South Florida Morsani College of Medicine, Neurosurgery & Brain Repair, Tampa, FL, USA
| | - Xiang Zhu
- University of Central Florida College of Medicine, Burnett School of Biomedical Sciences, Orlando, FL, USA
| | - Sarah Noureddine
- University of Central Florida College of Medicine, Burnett School of Biomedical Sciences, Orlando, FL, USA
| | - Sarah Siddiqi
- University of Central Florida College of Medicine, Burnett School of Biomedical Sciences, Orlando, FL, USA
| | - Driele N Garcia
- Faculdade de Nutricao, Universidade Federal de Pelotas, Pelotas, Rio Grande Do Sul, Brazil
| | - Aleksandra Gostynska
- Poznan University of Medical Sciences, Department of Pharmaceutical Chemistry, Poznan, Poland
| | - Maciej Stawny
- Poznan University of Medical Sciences, Department of Pharmaceutical Chemistry, Poznan, Poland
| | - Blazej Rubis
- Poznan University of Medical Sciences, Department of Pharmaceutical Chemistry, Poznan, Poland
| | - Bianka M Zanini
- Faculdade de Nutricao, Universidade Federal de Pelotas, Pelotas, Rio Grande Do Sul, Brazil
| | - Mishfak A M Mansoor
- University of Central Florida College of Medicine, Burnett School of Biomedical Sciences, Orlando, FL, USA
| | - Augusto Schneider
- Faculdade de Nutricao, Universidade Federal de Pelotas, Pelotas, Rio Grande Do Sul, Brazil
| | - Saleh A Naser
- University of Central Florida College of Medicine, Burnett School of Biomedical Sciences, Orlando, FL, USA
| | - Hariom Yadav
- University of South Florida Morsani College of Medicine, Neurosurgery & Brain Repair, Tampa, FL, USA
| | - Michal M Masternak
- University of Central Florida College of Medicine, Burnett School of Biomedical Sciences, Orlando, FL, USA.
- Department of Head and Neck Surgery, Poznan University of Medical Sciences, Poznan, Poland.
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3
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Chen SY, Chen YL, Li PC, Cheng TS, Chu YS, Shen YS, Chen HT, Tsai WN, Huang CL, Sieber M, Yeh YC, Liu HS, Chiang CL, Chang CH, Lee AS, Tseng YH, Lee LJ, Liao HJ, Yip HK, Huang CYF. Engineered extracellular vesicles carrying let-7a-5p for alleviating inflammation in acute lung injury. J Biomed Sci 2024; 31:30. [PMID: 38500170 PMCID: PMC10949767 DOI: 10.1186/s12929-024-01019-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 03/05/2024] [Indexed: 03/20/2024] Open
Abstract
BACKGROUND Acute lung injury (ALI) is a life-threatening respiratory condition characterized by severe inflammation and lung tissue damage, frequently causing rapid respiratory failure and long-term complications. The microRNA let-7a-5p is involved in the progression of lung injury, inflammation, and fibrosis by regulating immune cell activation and cytokine production. This study aims to use an innovative cellular electroporation platform to generate extracellular vesicles (EVs) carring let-7a-5p (EV-let-7a-5p) derived from transfected Wharton's jelly-mesenchymal stem cells (WJ-MSCs) as a potential gene therapy for ALI. METHODS A cellular nanoporation (CNP) method was used to induce the production and release of EV-let-7a-5p from WJ-MSCs transfected with the relevant plasmid DNA. EV-let-7a-5p in the conditioned medium were isolated using a tangential flow filtration (TFF) system. EV characterization followed the minimal consensus guidelines outlined by the International Society for Extracellular Vesicles. We conducted a thorough set of therapeutic assessments, including the antifibrotic effects using a transforming growth factor beta (TGF-β)-induced cell model, the modulation effects on macrophage polarization, and the influence of EV-let-7a-5p in a rat model of hyperoxia-induced ALI. RESULTS The CNP platform significantly increased EV secretion from transfected WJ-MSCs, and the encapsulated let-7a-5p in engineered EVs was markedly higher than that in untreated WJ-MSCs. These EV-let-7a-5p did not influence cell proliferation and effectively mitigated the TGF-β-induced fibrotic phenotype by downregulating SMAD2/3 phosphorylation in LL29 cells. Furthermore, EV-let-7a-5p regulated M2-like macrophage activation in an inflammatory microenvironment and significantly induced interleukin (IL)-10 secretion, demonstrating their modulatory effect on inflammation. Administering EVs from untreated WJ-MSCs slightly improved lung function and increased let-7a-5p expression in plasma in the hyperoxia-induced ALI rat model. In comparison, EV-let-7a-5p significantly reduced macrophage infiltration and collagen deposition while increasing IL-10 expression, causing a substantial improvement in lung function. CONCLUSION This study reveals that the use of the CNP platform to stimulate and transfect WJ-MSCs could generate an abundance of let-7a-5p-enriched EVs, which underscores the therapeutic potential in countering inflammatory responses, fibrotic activation, and hyperoxia-induced lung injury. These results provide potential avenues for developing innovative therapeutic approaches for more effective interventions in ALI.
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Affiliation(s)
- Sin-Yu Chen
- Institute of Biopharmaceutical Sciences, College of Pharmaceutical Sciences, National Yang Ming Chiao Tung University, Taipei, 112304, Taiwan
| | - Yi-Ling Chen
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, 833401, Taiwan
- Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, 833401, Taiwan
| | - Po-Chen Li
- Institute of Biopharmaceutical Sciences, College of Pharmaceutical Sciences, National Yang Ming Chiao Tung University, Taipei, 112304, Taiwan
| | - Tai-Shan Cheng
- Institute of Biopharmaceutical Sciences, College of Pharmaceutical Sciences, National Yang Ming Chiao Tung University, Taipei, 112304, Taiwan
- Department of Orthopedic Surgery, Far Eastern Memorial Hospital, New Taipei City, 220216, Taiwan
| | - Yeh-Shiu Chu
- Brain Research Center, National Yang Ming Chiao Tung University, Taipei, 112304, Taiwan
| | - Yi-Shan Shen
- Department of Orthopedic Surgery, Far Eastern Memorial Hospital, New Taipei City, 220216, Taiwan
- Department of Biomedical Engineering, National Taiwan University, Taipei, 106319, Taiwan
| | - Hsin-Tung Chen
- Institute of Biopharmaceutical Sciences, College of Pharmaceutical Sciences, National Yang Ming Chiao Tung University, Taipei, 112304, Taiwan
| | - Wei-Ni Tsai
- Institute of Biopharmaceutical Sciences, College of Pharmaceutical Sciences, National Yang Ming Chiao Tung University, Taipei, 112304, Taiwan
| | - Chien-Ling Huang
- Institute of Biopharmaceutical Sciences, College of Pharmaceutical Sciences, National Yang Ming Chiao Tung University, Taipei, 112304, Taiwan
| | | | - Yuan-Chieh Yeh
- Department of Traditional Chinese Medicine, Chang Gung Memorial Hospital, Keelung, 204201, Taiwan
- Program in Molecular Medicine, College of Life Sciences, National Yang Ming Chiao Tung University, Taipei, 112304, Taiwan
| | - Hsiao-Sheng Liu
- Department of Microbiology and Immunology, College of Medicine, National Cheng Kung University, Tainan, 701401, Taiwan
- Center for Cancer Research, College of Medicine, Kaohsiung Medical University, Kaohsiung, 807378, Taiwan
- Teaching and Research Center, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, 812015, Taiwan
| | - Chi-Ling Chiang
- Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH, 43210, USA
- Comprehensive Cancer Center, College of Medicine, The Ohio State University, Columbus, OH, 43210, USA
| | - Chih-Hung Chang
- Department of Orthopedic Surgery, Far Eastern Memorial Hospital, New Taipei City, 220216, Taiwan
- Graduate School of Biotechnology and Bioengineering, Yuan Ze University, Taoyuan, 320315, Taiwan
| | | | - Yen-Han Tseng
- Department of Chest Medicine, Taipei Veterans General Hospital, Taipei, 112201, Taiwan
| | - Ly James Lee
- Institute of Biopharmaceutical Sciences, College of Pharmaceutical Sciences, National Yang Ming Chiao Tung University, Taipei, 112304, Taiwan.
- Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH, 43210, USA.
- Spot Biosystems Ltd., Palo Alto, CA, 94305, USA.
| | - Hsiu-Jung Liao
- Institute of Biopharmaceutical Sciences, College of Pharmaceutical Sciences, National Yang Ming Chiao Tung University, Taipei, 112304, Taiwan.
- Department of Medical Research, Far Eastern Memorial Hospital, New Taipei City, 220216, Taiwan.
| | - Hon-Kan Yip
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, 833401, Taiwan.
- Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, 833401, Taiwan.
- Center for Shockwave Medicine and Tissue Engineering, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, 833401, Taiwan.
- Department of Nursing, Asia University, Taichung, 413305, Taiwan.
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, 404328, Taiwan.
| | - Chi-Ying F Huang
- Institute of Biopharmaceutical Sciences, College of Pharmaceutical Sciences, National Yang Ming Chiao Tung University, Taipei, 112304, Taiwan.
- Department of Biochemistry, School of Medicine, Kaohsiung Medical University, Kaohsiung, 807378, Taiwan.
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Baccianti F, Masson C, Delecluse S, Li Z, Poirey R, Delecluse HJ. Epstein-Barr virus infectious particles initiate B cell transformation and modulate cytokine response. mBio 2023; 14:e0178423. [PMID: 37830871 PMCID: PMC10653912 DOI: 10.1128/mbio.01784-23] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 08/14/2023] [Indexed: 10/14/2023] Open
Abstract
IMPORTANCE The Epstein-Barr virus efficiently infects and transforms B lymphocytes. During this process, infectious viral particles transport the viral genome to the nucleus of target cells. We show here that these complex viral structures serve additional crucial roles by activating transcription of the transforming genes encoded by the virus. We show that components of the infectious particle sequentially activate proinflammatory B lymphocyte signaling pathways that, in turn, activate viral gene expression but also cause cytokine release. However, virus infection activates expression of ZFP36L1, an RNA-binding stress protein that limits the length and the intensity of the cytokine response. Thus, the infectious particles can activate viral gene expression and initiate cellular transformation at the price of a limited immune response.
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Affiliation(s)
- Francesco Baccianti
- Pathogenesis of Virus Associated Tumors, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Unit U1074, INSERM, Heidelberg, Germany
| | - Charlène Masson
- Pathogenesis of Virus Associated Tumors, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Unit U1074, INSERM, Heidelberg, Germany
| | - Susanne Delecluse
- Pathogenesis of Virus Associated Tumors, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Unit U1074, INSERM, Heidelberg, Germany
- Nierenzentrum Heidelberg e.V., Heidelberg, Germany
- Deutsches Zentrum für Infektionsforschung (DZIF), Braunschweig, Germany
| | - Zhe Li
- Pathogenesis of Virus Associated Tumors, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Unit U1074, INSERM, Heidelberg, Germany
| | - Remy Poirey
- Pathogenesis of Virus Associated Tumors, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Unit U1074, INSERM, Heidelberg, Germany
| | - Henri-Jacques Delecluse
- Pathogenesis of Virus Associated Tumors, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Unit U1074, INSERM, Heidelberg, Germany
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5
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Kamal A, Arnold C, Claringbould A, Moussa R, Servaas NH, Kholmatov M, Daga N, Nogina D, Mueller‐Dott S, Reyes‐Palomares A, Palla G, Sigalova O, Bunina D, Pabst C, Zaugg JB. GRaNIE and GRaNPA: inference and evaluation of enhancer-mediated gene regulatory networks. Mol Syst Biol 2023; 19:e11627. [PMID: 37073532 PMCID: PMC10258561 DOI: 10.15252/msb.202311627] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 04/01/2023] [Accepted: 04/03/2023] [Indexed: 04/20/2023] Open
Abstract
Enhancers play a vital role in gene regulation and are critical in mediating the impact of noncoding genetic variants associated with complex traits. Enhancer activity is a cell-type-specific process regulated by transcription factors (TFs), epigenetic mechanisms and genetic variants. Despite the strong mechanistic link between TFs and enhancers, we currently lack a framework for jointly analysing them in cell-type-specific gene regulatory networks (GRN). Equally important, we lack an unbiased way of assessing the biological significance of inferred GRNs since no complete ground truth exists. To address these gaps, we present GRaNIE (Gene Regulatory Network Inference including Enhancers) and GRaNPA (Gene Regulatory Network Performance Analysis). GRaNIE (https://git.embl.de/grp-zaugg/GRaNIE) builds enhancer-mediated GRNs based on covariation of chromatin accessibility and RNA-seq across samples (e.g. individuals), while GRaNPA (https://git.embl.de/grp-zaugg/GRaNPA) assesses the performance of GRNs for predicting cell-type-specific differential expression. We demonstrate their power by investigating gene regulatory mechanisms underlying the response of macrophages to infection, cancer and common genetic traits including autoimmune diseases. Finally, our methods identify the TF PURA as a putative regulator of pro-inflammatory macrophage polarisation.
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Affiliation(s)
- Aryan Kamal
- European Molecular Biology Laboratory, Structural and Computational Biology UnitHeidelbergGermany
- Faculty of BiosciencesCollaboration for Joint PhD Degree between EMBL and Heidelberg UniversityHeidelbergGermany
| | - Christian Arnold
- European Molecular Biology Laboratory, Structural and Computational Biology UnitHeidelbergGermany
| | - Annique Claringbould
- European Molecular Biology Laboratory, Structural and Computational Biology UnitHeidelbergGermany
| | - Rim Moussa
- European Molecular Biology Laboratory, Structural and Computational Biology UnitHeidelbergGermany
| | - Nila H Servaas
- European Molecular Biology Laboratory, Structural and Computational Biology UnitHeidelbergGermany
| | - Maksim Kholmatov
- European Molecular Biology Laboratory, Structural and Computational Biology UnitHeidelbergGermany
| | - Neha Daga
- European Molecular Biology Laboratory, Structural and Computational Biology UnitHeidelbergGermany
| | - Daria Nogina
- European Molecular Biology Laboratory, Structural and Computational Biology UnitHeidelbergGermany
| | - Sophia Mueller‐Dott
- European Molecular Biology Laboratory, Structural and Computational Biology UnitHeidelbergGermany
| | - Armando Reyes‐Palomares
- European Molecular Biology Laboratory, Structural and Computational Biology UnitHeidelbergGermany
- Present address:
Department of Biochemistry and Molecular BiologyComplutense University of MadridMadridSpain
| | - Giovanni Palla
- European Molecular Biology Laboratory, Structural and Computational Biology UnitHeidelbergGermany
- Present address:
Institute of Computational BiologyHelmholtz Center MunichOberschleißheimGermany
| | - Olga Sigalova
- European Molecular Biology Laboratory, Structural and Computational Biology UnitHeidelbergGermany
- Faculty of BiosciencesCollaboration for Joint PhD Degree between EMBL and Heidelberg UniversityHeidelbergGermany
| | - Daria Bunina
- European Molecular Biology Laboratory, Structural and Computational Biology UnitHeidelbergGermany
| | - Caroline Pabst
- Department of Medicine V, Hematology, Oncology and RheumatologyUniversity Hospital HeidelbergHeidelbergGermany
- Molecular Medicine Partnership UnitUniversity of HeidelbergHeidelbergGermany
| | - Judith B Zaugg
- European Molecular Biology Laboratory, Structural and Computational Biology UnitHeidelbergGermany
- Molecular Medicine Partnership UnitUniversity of HeidelbergHeidelbergGermany
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6
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Rajpoot S, Kumar A, Gaponenko V, Thurston TL, Mehta D, Faisal SM, Zhang KY, Jha HC, Darwhekar GN, Baig MS. Dorzolamide suppresses PKCδ -TIRAP-p38 MAPK signaling axis to dampen the inflammatory response. Future Med Chem 2023. [PMID: 37129027 DOI: 10.4155/fmc-2022-0260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023] Open
Abstract
Background: Sepsis is a syndrome due to microbial infection causing impaired multiorgan function. Its underlying cause is immune dysfunction and macrophages play an essential role. Methods: TIRAP interaction with PKCδ in macrophage was studied, revealing downstream signaling by Western blot and quantitative reverse transcriptase PCR. Dorzolamide (DZD) disrupting TIRAP-PKCδ interaction was identified by virtual screening and validated in vitro and in septic mice. Results: The study highlights the indispensable role of TIRAP-PKCδ in p38 MAPK-activation, NF-κB- and AP-1-mediated proinflammatory cytokines expression, whereas DZD significantly attenuated the signaling. Conclusion: Targeting TIRAP-PKCδ interaction by DZD is a novel therapeutic approach for treating sepsis.
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Affiliation(s)
- Sajjan Rajpoot
- Department of Biosciences & Biomedical Engineering, Indian Institute of Technology Indore, Simrol, Indore, 453552, India
| | - Ashutosh Kumar
- Laboratory for Structural Bioinformatics, Center for Biosystems Dynamics Research, RIKEN, Tsurumi, Yokohama, Kanagawa, 230-0045, Japan
| | - Vadim Gaponenko
- Department of Biochemistry & Molecular Genetics, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Teresa Lm Thurston
- MRC Centre for Molecular Bacteriology & Infection, Imperial College London, London, SW7 2AZ, UK
| | - Dolly Mehta
- Department of Pharmacology & Center for Lung & Vascular Biology, College of Medicine, The University of Illinois, Chicago, IL 60612, USA
| | - Syed M Faisal
- National Institute of Animal Biotechnology, Hyderabad, 500032, India
| | - Kam Yj Zhang
- Laboratory for Structural Bioinformatics, Center for Biosystems Dynamics Research, RIKEN, Tsurumi, Yokohama, Kanagawa, 230-0045, Japan
| | - Hem C Jha
- Department of Biosciences & Biomedical Engineering, Indian Institute of Technology Indore, Simrol, Indore, 453552, India
| | - Gajanan N Darwhekar
- Acropolis Institute of Pharmaceutical Education & Research, Indore, 453771, India
| | - Mirza S Baig
- Department of Biosciences & Biomedical Engineering, Indian Institute of Technology Indore, Simrol, Indore, 453552, India
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7
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Xia T, Zhang M, Lei W, Yang R, Fu S, Fan Z, Yang Y, Zhang T. Advances in the role of STAT3 in macrophage polarization. Front Immunol 2023; 14:1160719. [PMID: 37081874 PMCID: PMC10110879 DOI: 10.3389/fimmu.2023.1160719] [Citation(s) in RCA: 37] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 03/27/2023] [Indexed: 04/22/2023] Open
Abstract
The physiological processes of cell growth, proliferation, differentiation, and apoptosis are closely related to STAT3, and it has been demonstrated that aberrant STAT3 expression has an impact on the onset and progression of a number of inflammatory immunological disorders, fibrotic diseases, and malignancies. In order to produce the necessary biological effects, macrophages (M0) can be polarized into pro-inflammatory (M1) and anti-inflammatory (M2) types in response to various microenvironmental stimuli. STAT3 signaling is involved in macrophage polarization, and the research of the effect of STAT3 on macrophage polarization has gained attention in recent years. In order to provide references for the treatment and investigation of disorders related to macrophage polarization, this review compiles the pertinent signaling pathways associated with STAT3 and macrophage polarization from many fundamental studies.
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Affiliation(s)
- Tingting Xia
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
- Department of Dermatology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Meng Zhang
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Wei Lei
- Department of Dermatology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Ruilin Yang
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Shengping Fu
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Zhenhai Fan
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
- The Clinical Stem Cell Research Institute, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Ying Yang
- Department of Dermatology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Tao Zhang
- Key Laboratory of Cell Engineering of Guizhou Province, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
- Department of Dermatology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
- The Clinical Stem Cell Research Institute, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
- *Correspondence: Tao Zhang,
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8
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Montauti E, Weinberg SE, Chu P, Chaudhuri S, Mani NL, Iyer R, Zhou Y, Zhang Y, Liu C, Xin C, Gregory S, Wei J, Zhang Y, Chen W, Sun Z, Yan M, Fang D. A deubiquitination module essential for T reg fitness in the tumor microenvironment. SCIENCE ADVANCES 2022; 8:eabo4116. [PMID: 36427305 PMCID: PMC9699683 DOI: 10.1126/sciadv.abo4116] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 10/26/2022] [Indexed: 06/16/2023]
Abstract
The tumor microenvironment (TME) enhances regulatory T (Treg) cell stability and immunosuppressive functions through up-regulation of lineage transcription factor Foxp3, a phenomenon known as Treg fitness or adaptation. Here, we characterize previously unknown TME-specific cellular and molecular mechanisms underlying Treg fitness. We demonstrate that TME-specific stressors including transforming growth factor-β (TGF-β), hypoxia, and nutrient deprivation selectively induce two Foxp3-specific deubiquitinases, ubiquitin-specific peptidase 22 (Usp22) and Usp21, by regulating TGF-β, HIF, and mTOR signaling, respectively, to maintain Treg fitness. Simultaneous deletion of both USPs in Treg cells largely diminishes TME-induced Foxp3 up-regulation, alters Treg metabolic signatures, impairs Treg-suppressive function, and alleviates Treg suppression on cytotoxic CD8+ T cells. Furthermore, we developed the first Usp22-specific small-molecule inhibitor, which dramatically reduced intratumoral Treg Foxp3 expression and consequently enhanced antitumor immunity. Our findings unveil previously unappreciated mechanisms underlying Treg fitness and identify Usp22 as an antitumor therapeutic target that inhibits Treg adaptability in the TME.
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Affiliation(s)
- Elena Montauti
- Department of Pathology, Northwestern University Feinberg School of Medicine, 303 E. Chicago Ave, Chicago, IL 60611, USA
| | - Samuel E. Weinberg
- Department of Pathology, Northwestern University Feinberg School of Medicine, 303 E. Chicago Ave, Chicago, IL 60611, USA
| | - Peng Chu
- Department of Pharmacology, Dalian Medical University, Dalian 116044, China
| | - Shuvam Chaudhuri
- Department of Pathology, Northwestern University Feinberg School of Medicine, 303 E. Chicago Ave, Chicago, IL 60611, USA
| | - Nikita L. Mani
- Department of Pathology, Northwestern University Feinberg School of Medicine, 303 E. Chicago Ave, Chicago, IL 60611, USA
| | - Radhika Iyer
- Department of Pathology, Northwestern University Feinberg School of Medicine, 303 E. Chicago Ave, Chicago, IL 60611, USA
| | - Yuanzhang Zhou
- Department of Pharmacology, Dalian Medical University, Dalian 116044, China
| | - Yusi Zhang
- Department of Immunology, The Fourth Military Medical University, Xi’an 710032, China
| | - Changhong Liu
- Department of Thoracic Surgery, The Second Hospital of Dalian Medical University, Dalian 116021, China
| | - Chen Xin
- Department of General Surgery, The Second Hospital of Dalian Medical University, Dalian 116021, China
| | - Shana Gregory
- Department of Pathology, Northwestern University Feinberg School of Medicine, 303 E. Chicago Ave, Chicago, IL 60611, USA
| | - Juncheng Wei
- Department of Pathology, Northwestern University Feinberg School of Medicine, 303 E. Chicago Ave, Chicago, IL 60611, USA
| | - Yana Zhang
- Department of Pathology, Northwestern University Feinberg School of Medicine, 303 E. Chicago Ave, Chicago, IL 60611, USA
| | - Wantao Chen
- Department of Oral Maxillofacial Head and Neck Oncology, Shanghai Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai, China
| | - Zhaolin Sun
- Department of Pharmacology, Dalian Medical University, Dalian 116044, China
| | - Ming Yan
- Department of Pathology, Northwestern University Feinberg School of Medicine, 303 E. Chicago Ave, Chicago, IL 60611, USA
- Department of Oral Maxillofacial Head and Neck Oncology, Shanghai Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai, China
| | - Deyu Fang
- Department of Pathology, Northwestern University Feinberg School of Medicine, 303 E. Chicago Ave, Chicago, IL 60611, USA
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Sachdeva R, Pal R. A pregnancy hormone-cell death link promotes enhanced lupus-specific immunological effects. Front Immunol 2022; 13:1051779. [PMID: 36505418 PMCID: PMC9730325 DOI: 10.3389/fimmu.2022.1051779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 11/04/2022] [Indexed: 11/25/2022] Open
Abstract
Women of reproductive age demonstrate an increased incidence of systemic lupus erythematosus, and reproductive hormones have been implicated in disease progression. Additionally, pregnancy can be associated with disease "flares", the reasons for which remain obscure. While apoptotic bodies are believed to provide an autoantigenic trigger in lupus, whether autoantigenic constituents vary with varying cellular insults, and whether such variations can be immunologically consequential in the context of pregnancy, remains unknown. As assessed by antigenicity and mass spectrometry, apoptotic bodies elicited by different drugs demonstrated the differential presence of lupus-associated autoantigens, and varied in the ability to elicit lupus-associated cytokines from lupus splenocytes and alter the phenotype of lupus B cells. Immunization of tamoxifen-induced apoptotic bodies in lupus-prone mice generated higher humoral autoreactive responses than did immunization with cisplatin-induced apoptotic bodies, and both apoptotic bodies were poorly immunogenic in healthy mice. Incubation of lupus splenocytes (but not healthy splenocytes) with the pregnancy hormone human chorionic gonadotropin (hCG) along with tamoxifen-induced apoptotic bodies (but not cisplatin-induced apoptotic bodies) induced increases in the secretion of lupus-associated cytokines and in the up-modulation of B cell phenotypic markers. In addition, levels of secreted autoantibodies (including of specificities linked to lupus pathogenesis) were enhanced. These events were associated with the heightened phosphorylation of several signaling intermediates. Observations suggest that hCG is a potential disease-promoting co-stimulant in a lupus-milieu; when combined with specific apoptotic bodies, it enhances the intensity of multiple lupus-associated events. These findings deepen mechanistic insight into the hormone's links with autoreactive responses in lupus-prone mice and humans.
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Janpaijit S, Lertpatipanpong P, Sillapachaiyaporn C, Baek SJ, Charoenkiatkul S, Tencomnao T, Sukprasansap M. Anti-neuroinflammatory effects of Cleistocalyx nervosum var. paniala berry-seed extract in BV-2 microglial cells via inhibition of MAPKs/NF-κB signaling pathway. Heliyon 2022; 8:e11869. [DOI: 10.1016/j.heliyon.2022.e11869] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 09/27/2022] [Accepted: 11/17/2022] [Indexed: 11/30/2022] Open
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Hung H, Tsai S, Sie S, Kuo Y. High glucose enhances lipopolysaccharide‐induced inflammation in cultured BV2 microglial cell line. Immun Inflamm Dis 2022; 10:e610. [PMID: 35478445 PMCID: PMC9017628 DOI: 10.1002/iid3.610] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 03/08/2022] [Indexed: 11/12/2022] Open
Affiliation(s)
- Hao‐Chang Hung
- Division of Endocrinology and Metabolism, Department of Internal Medicine Kaohsiung Veterans General Hospital Kaohsiung Taiwan
| | - Sheng‐Feng Tsai
- Institute of Basic Medical Sciences, College of Medicine National Cheng Kung University Tainan Taiwan
- Department of Cell Biology and Anatomy, College of Medicine National Cheng Kung University Tainan Taiwan
| | - Shih‐Ren Sie
- Department of Anesthesiology Ditmanson Medical Foundation Chia‐Yi Christian Hospital Chiayi Taiwan
| | - Yu‐Min Kuo
- Institute of Basic Medical Sciences, College of Medicine National Cheng Kung University Tainan Taiwan
- Department of Cell Biology and Anatomy, College of Medicine National Cheng Kung University Tainan Taiwan
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JO AL, HAN JW, AN JI, CHO KH, JEOUNG NH. Cuban Policosanol Prevents the Apoptosis and the Mitochondrial Dysfunction Induced by Lipopolysaccharide in C2C12 Myoblast via Activation of Akt and Erk Pathways. J Nutr Sci Vitaminol (Tokyo) 2022; 68:79-86. [DOI: 10.3177/jnsv.68.79] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Ae Lim JO
- Department of Pharmaceutical Engineering, Deagu Catholic University
| | - Ji Won HAN
- Department of Pharmaceutical Engineering, Deagu Catholic University
| | - Ji In AN
- Department of Pharmaceutical Engineering, Deagu Catholic University
| | | | - Nam Ho JEOUNG
- Department of Pharmaceutical Engineering, Deagu Catholic University
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13
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TIRAP-mediated activation of p38 MAPK in inflammatory signaling. Sci Rep 2022; 12:5601. [PMID: 35379857 PMCID: PMC8979995 DOI: 10.1038/s41598-022-09528-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Accepted: 03/16/2022] [Indexed: 02/06/2023] Open
Abstract
AbstractThe role of TIRAP (toll/interleukin-1 receptor (TIR) domain-containing adapter protein) in macrophage inflammatory signalling has been significantly evolved since its discovery in 2001 due to its dynamic nature and subcellular localization to regulate multiple signaling through several protein–protein interactions (PPIs). Structural analysis of these interactions can reveal a better understanding of their conformational dynamics and the nature of their binding. Tyrosine phosphorylation in the TIR domain of TIRAP is very critical for its function. In toll-like receptor (TLR) 4/2 signalling, Bruton's tyrosine kinase (BTK) and Protein kinase C delta (PKCδ) are known to phosphorylate the Y86, Y106, Y159, and Y187 of TIRAP which is crucial for the downstream function of MAPKs (mitogen-activated protein kinases) activation. The objective of this study is to understand the interaction of TIRAP with p38 MAPK through molecular docking and identify the importance of TIRAP tyrosine phosphorylation in p38 MAPK interaction. In this structural study, we performed an in-silico molecular docking using HADDOCK 2.4, pyDockWEB, ClusPro 2.0, and ZDOCK 3.0.2 tools to unravel the interaction between TIRAP and p38 MAPK. Further, manual in-silico phosphorylations of TIRAP tyrosines; Y86, Y106, Y159, and Y187 was created in the Discovery Studio tool to study the conformational changes in protein docking and their binding affinities with p38 MAPK in comparison to non-phosphorylated state. Our molecular docking and 500 ns of molecular dynamic (MD) simulation study demonstrates that the Y86 phosphorylation (pY86) in TIRAP is crucial in promoting the higher binding affinity (∆Gbind) with p38 MAPK. The conformational changes due to the tyrosine phosphorylation mainly at the Y86 site pull the TIRAP closer to the active site in the kinase domain of p38 MAPK and plays a significant role at the interface site which is reversed in its dephosphorylated state. The heatmap of interactions between the TIRAP and p38 MAPK after the MD simulation shows that the TIRAP pY86 structure makes the highest number of stable hydrogen bonds with p38 MAPK residues. Our findings may further be validated in an in-vitro system and would be crucial for targeting the TIRAP and p38 MAPK interaction for therapeutic purposes against the chronic inflammatory response and associated diseases.
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Young AP, Denovan-Wright EM. The Dynamic Role of Microglia and the Endocannabinoid System in Neuroinflammation. Front Pharmacol 2022; 12:806417. [PMID: 35185547 PMCID: PMC8854262 DOI: 10.3389/fphar.2021.806417] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 12/24/2021] [Indexed: 12/13/2022] Open
Abstract
Microglia, the resident immune cells of the brain, can take on a range of pro- or anti-inflammatory phenotypes to maintain homeostasis. However, the sustained activation of pro-inflammatory microglia can lead to a state of chronic neuroinflammation characterized by high concentrations of neurotoxic soluble factors throughout the brain. In healthy brains, the inflammatory processes cease and microglia transition to an anti-inflammatory phenotype, but failure to halt the pro-inflammatory processes is a characteristic of many neurological disorders. The endocannabinoid system has been identified as a promising therapeutic target for chronic neuroinflammation as there is evidence that synthetic and endogenously produced cannabinoids temper the pro-inflammatory response of microglia and may encourage a switch to an anti-inflammatory phenotype. Activation of cannabinoid type 2 (CB2) receptors has been proposed as the mechanism of action responsible for these effects. The abundance of components of the endocannabinoid system in microglia also change dynamically in response to several brain pathologies. This can impact the ability of microglia to synthesize and degrade endocannabinoids or react to endogenous and exogenous cannabinoids. Cannabinoid receptors also participate in the formation of receptor heteromers which influences their function specifically in cells that express both receptors, such as microglia. This creates opportunities for drug-drug interactions between CB2 receptor-targeted therapies and other classes of drugs. In this article, we review the roles of pro- and anti-inflammatory microglia in the development and resolution of neuroinflammation. We also discuss the fluctuations observed in the components of the endocannabinoid in microglia and examine the potential of CB2 receptors as a therapeutic target in this context.
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Corylin Ameliorates LPS-Induced Acute Lung Injury via Suppressing the MAPKs and IL-6/STAT3 Signaling Pathways. Pharmaceuticals (Basel) 2021; 14:ph14101046. [PMID: 34681270 PMCID: PMC8537250 DOI: 10.3390/ph14101046] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 10/08/2021] [Accepted: 10/08/2021] [Indexed: 12/18/2022] Open
Abstract
Acute lung injury (ALI) is a high mortality disease with acute inflammation. Corylin is a compound isolated from the whole plant of Psoralea corylifolia L. and has been reported to have anti-inflammatory activities. Herein, we investigated the therapeutic potential of corylin on lipopolysaccharides (LPS)-induced ALI, both in vitro and in vivo. The levels of proinflammatory cytokine secretions were analyzed by ELISA; the expressions of inflammation-associated proteins were detected using Western blot; and the number of immune cell infiltrations in the bronchial alveolar lavage fluid (BALF) were detected by multicolor flow cytometry and lung tissues by hematoxylin and eosin (HE) staining, respectively. Experimental results indicated that corylin attenuated LPS-induced IL-6 production in human bronchial epithelial cells (HBEC3-KT cells). In intratracheal LPS-induced ALI mice, corylin attenuated tissue damage, suppressed inflammatory cell infiltration, and decreased IL-6 and TNF-α secretions in the BALF and serum. Moreover, it further inhibited the phosphorylation of mitogen-activated protein kinases (MAPKs), including p-JNK, p-ERK, p-p38, and repressed the activation of signal transducer and activator of transcription 3 (STAT3) in lungs. Collectively, our results are the first to demonstrate the anti-inflammatory effects of corylin on LPS-induced ALI and suggest corylin has significant potential as a novel therapeutic agent for ALI.
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Awasthi A, Raju MB, Rahman MA. Current Insights of Inhibitors of p38 Mitogen-Activated Protein Kinase in Inflammation. Med Chem 2021; 17:555-575. [PMID: 32106802 DOI: 10.2174/1573406416666200227122849] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 10/01/2019] [Accepted: 11/25/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND The inflammatory process is one of the mechanisms by which our body upholds us from pathogens such as parasites, bacteria, viruses, and other harmful microorganisms. Inflammatory stimuli activate many intracellular signaling pathways such as the nuclear factor-kB (NF-kB) pathway and three mitogen-activated protein kinase (MAPK) pathways, which are mediated through extracellular-signal regulated kinase (ERK), c-Jun N-terminal kinase (JNK) and p38. The p38 has evolved as an enticing target in treating many persistent inflammatory diseases. Hence, designing novel p38 inhibitors targeting MAPK pathways has acquired significance. OBJECTIVE Peruse to identify the lead target to discover novel p38MAPK inhibitors with different scaffolds having improved selectivity over the prototype drugs. METHODS Structure and the binding sites of p38MAPK were focused. Various scaffolds designed for inhibition and the molecules which have entered the clinical trials are discussed. RESULTS This review aspires to present the available information on the structure and the 3D binding sites of p38MAPK, various scaffolds designed for imidazole, urea, benzamide, azoles, quinoxaline, chromone, ketone as a potent p38MAPK inhibitors and their SAR studies and the molecules which have entered the clinical trials. CONCLUSION The development of successful selective p38MAPK inhibitors in inflammatory diseases is in progress despite all challenges. It was speculated that p38MAPK also plays an important role in treating diseases such as neuroinflammation, arterial inflammation, vascular inflammation, cancer and so on, which are posing the world with treatment challenges. In this review, clinical trials of drugs are discussed related to inflammatory and its related diseases. Research is in progress to design and develop novel p38MAPK inhibitors with minimal side effects.
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Affiliation(s)
- Archana Awasthi
- Department of Pharmaceutical Chemistry, Sri Venkateshwara College of Pharmacy, Madhapur, Hyderabad, Telangana, India
| | - Mantripragada Bhagavan Raju
- Department of Pharmaceutical Chemistry, Sri Venkateshwara College of Pharmacy, Madhapur, Hyderabad, Telangana, India
| | - Md Azizur Rahman
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Integral University, Lucknow, Uttar Pradesh, India
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Cystatin C Deficiency Increases LPS-Induced Sepsis and NLRP3 Inflammasome Activation in Mice. Cells 2021; 10:cells10082071. [PMID: 34440840 PMCID: PMC8391971 DOI: 10.3390/cells10082071] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 08/05/2021] [Accepted: 08/10/2021] [Indexed: 11/16/2022] Open
Abstract
Cystatin C is a potent cysteine protease inhibitor that plays an important role in various biological processes including cancer, cardiovascular diseases and neurodegenerative diseases. However, the role of CstC in inflammation is still unclear. In this study we demonstrated that cystatin C-deficient mice were significantly more sensitive to the lethal LPS-induced sepsis. We further showed increased caspase-11 gene expression and enhanced processing of pro-inflammatory cytokines IL-1β and IL-18 in CstC KO bone marrow-derived macrophages (BMDM) upon LPS and ATP stimulation. Pre-treatment of BMDMs with the cysteine cathepsin inhibitor E-64d did not reverse the effect of CstC deficiency on IL-1β processing and secretion, suggesting that the increased cysteine cathepsin activity determined in CstC KO BMDMs is not essential for NLRP3 inflammasome activation. The CstC deficiency had no effect on (mitochondrial) reactive oxygen species (ROS) generation, the MAPK signaling pathway or the secretion of anti-inflammatory cytokine IL-10. However, CstC-deficient BMDMs showed dysfunctional autophagy, as autophagy induction via mTOR and AMPK signaling pathways was suppressed and accumulation of SQSTM1/p62 indicated a reduced autophagic flux. Collectively, our study demonstrates that the excessive inflammatory response to the LPS-induced sepsis in CstC KO mice is dependent on increased caspase-11 expression and impaired autophagy, but is not associated with increased cysteine cathepsin activity.
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MKL1 cooperates with p38MAPK to promote vascular senescence, inflammation, and abdominal aortic aneurysm. Redox Biol 2021; 41:101903. [PMID: 33667992 PMCID: PMC7937568 DOI: 10.1016/j.redox.2021.101903] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 02/04/2021] [Accepted: 02/15/2021] [Indexed: 12/20/2022] Open
Abstract
Abdominal aortic aneurysm (AAA) is a catastrophic disease with little effective therapy. Myocardin related transcription factor A (MRTFA, MKL1) is a multifaceted transcription factor, regulating diverse biological processes. However, a detailed understanding of the mechanistic role of MKL1 in AAA has yet to be elucidated. In this study, we showed induced MKL1 expression in thoracic and abdominal aneurysmal tissues, respectively in both mice and humans. MKL1 global knockout mice displayed reduced AAA formation and aortic rupture compared with wild-type mice. Both gene deletion and pharmacological inhibition of MKL1 markedly protected mice from aortic dissection, an early event in Angiotensin II (Ang II)-induced AAA formation. Loss of MKL1 was accompanied by reduced senescence/proinflammation in the vessel wall and cultured vascular smooth muscle cells (VSMCs). Mechanistically, a deficiency in MKL1 abolished AAA-induced p38 mitogen activated protein kinase (p38MAPK) activity. Similar to MKL1, loss of MAPK14 (p38α), the dominant isoform of p38MAPK family in VSMCs suppressed Ang II-induced AAA formation, vascular inflammation, and senescence marker expression. These results reveal a molecular pathway of AAA formation involving MKL1/p38MAPK stimulation and a VSMC senescent/proinflammatory phenotype. These data support targeting MKL1/p38MAPK pathway as a potential effective treatment for AAA. MKL1 expression is induced in both thoracic and abdominal aneurysmal tissues. Genetic ablation and pharmacological inhibition of MKL1 protect mice from aortic dissection and AAA induced by Ang II. Depletion of MKL1 in mice suppresses Ang II-induced vascular inflammation and senescence. Depletion of MKL1 blunts the activation of p38MAPK and STAT3 pathways. Loss of MAPK14 in VSMCs suppresses Ang II-induced AAA formation, vascular inflammation, and senescence marker expression.
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Karimollah A, Hemmatpur A, Hosseini N, Manshadi MD. Tropisetron balances immune responses via TLR2, TLR4 and JAK2/STAT3 signalling pathway in LPS-stimulated PBMCs. Basic Clin Pharmacol Toxicol 2021; 128:669-676. [PMID: 33523585 DOI: 10.1111/bcpt.13565] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 01/18/2021] [Accepted: 01/27/2021] [Indexed: 11/28/2022]
Abstract
Numerous documents have been stated that tropisetron, an antagonist of the 5-HT3 receptor and α7nAChR agonist, modulates immune responses. However, the mechanistic basis for this aspect of tropisetron action is largely unknown. Here, the immuno-modulatory effects of tropisetron are investigated, focusing on the possible molecular targets and the mechanisms. Aside from the well-characterized role in immune signalling, JAK2/STAT3, TLR2 and TLR4 are signal transducers linked to both immuno-modulatory actions of acetylcholine and serotonin. Therefore, we evaluated their involvement in the immunoregulatory effects of tropisetron. To test the hypothesis, we assessed the expression of pro-/anti-inflammatory cytokines including TNF-α, IL-1β, IL-17 and IL-10 following tropisetron treatment in lipopolysaccharide (LPS)-stimulated peripheral blood mononuclear cells (PBMCs) derived from healthy subjects. Tropisetron up-regulates the transcription of TLR2, TLR4, JAK2 and STAT3 genes. Tropisetron also increases the expression of target pro-inflammatory cytokines, although considerably suppresses the pro-inflammatory cytokines (IL-1β, IL-17 and TNF-α) levels in media. Tropisetron notably promotes both IL-10 gene expression and secretion. These findings confirm the antiphlogistic properties of tropisetron. The present data also shed light on a new aspect of tropisetron immune-modulatory action that engaged TLR2, TLR4 and JAK2/STAT3 signalling cascades.
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Affiliation(s)
- Alireza Karimollah
- Department of Pharmacology, School of Pharmacy, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran
| | - Anahid Hemmatpur
- Department of Biochemistry, School of medicine, Shahid Sadoughi University of medical sciences and Health Services, Yazd, Iran
| | - Nafise Hosseini
- Department of Pharmacology, School of Pharmacy, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran
| | - Mahdi Dehghan Manshadi
- Reproductive Immunology Research Center, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran
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Lee PS, Chiou YS, Chou PY, Nagabhushanam K, Ho CT, Pan MH. 3'-Hydroxypterostilbene Inhibits 7,12-Dimethylbenz[a]anthracene (DMBA)/12-O-Tetradecanoylphorbol-13-Acetate (TPA)-Induced Mouse Skin Carcinogenesis. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021; 81:153432. [PMID: 33310310 DOI: 10.1016/j.phymed.2020.153432] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/16/2020] [Accepted: 11/28/2020] [Indexed: 06/12/2023]
Abstract
BACKGROUND A natural pterostilbene analogue isolated from the herb Sphaerophysa salsula, 3'-hydroxypterostilbene (HPSB), exhibits antiproliferative activity in several cancer cell lines; however, the inhibitory effects of HPSB on skin carcinogenesis remains unclear. PURPOSE The aim of this study was to evaluate the inhibitory effects of HPSB on two-stage skin carcinogenesis in mice and its potential mechanism. STUDY DESIGN AND METHODS This study investigated the anti-inflammatory and anti-tumor effects of HPSB in the 12-O-tetradecanoylphorbol-13-acetate (TPA)-stimulated acute skin inflammation and 7,12-dimethylbenz[a]anthracene (DMBA)/TPA-induced two-stage skin carcinogenesis model. In addition, the effects of HPSB on the modulation of the phase I and phase II metabolizing enzymes in the DMBA-induced HaCaT cell model were investigated. RESULTS The results provide evidence that topical treatment with HPSB significantly inhibits TPA-induced epidermal hyperplasia and leukocyte infiltration through the down-regulation of cyclooxygenase-2 (COX-2), matrix metalloprotein-9 (MMP-9), and ornithine decarboxylase (ODC) protein expression in mouse skin. Furthermore, HPSB suppresses DMBA/TPA-induced skin tumor incidence and multiplicity via the inhibition of proliferating cell nuclear antigen (PCNA), Cyclin B1 and cyclin-dependent kinase 1 (CDK1) expression in the two-stage skin carcinogenesis model. In addition, pretreatment with HPSB markedly reduces DMBA-induced cytochrome P450 1A1 (CYP1A1) and cytochrome P450 1B1 (CYP1B1) gene expression in human keratinocytes; however, HPSB does not significantly affect the gene expression of the phase II enzymes. CONCLUSION This is the first study to show that topical treatment with HPSB prevents mouse skin tumorigenesis. Overall, our study suggests that natural HPSB may serve as a novel chemopreventive agent capable of preventing carcinogen activation and inflammation-associated tumorigenesis.
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Affiliation(s)
- Pei-Sheng Lee
- Institute of Food Science and Technology, National Taiwan University, Taipei 10617, Taiwan
| | - Yi-Shiou Chiou
- Institute of Food Science and Technology, National Taiwan University, Taipei 10617, Taiwan; Tsinghua Berkeley Shenzhen Institute (TBSI), Tsinghua University, Shenzhen, China
| | - Pin-Yu Chou
- Institute of Food Science and Technology, National Taiwan University, Taipei 10617, Taiwan
| | | | - Chi-Tang Ho
- Department of Food Science, Rutgers University, New Brunswick, New Jersey, USA
| | - Min-Hsiung Pan
- Institute of Food Science and Technology, National Taiwan University, Taipei 10617, Taiwan; Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 40402, Taiwan; Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan.
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CTRP9 induces macrophages polarization into M1 phenotype through activating JNK pathway and enhances VSMCs apoptosis in macrophages and VSMCs co-culture system. Exp Cell Res 2020; 395:112194. [PMID: 32712018 DOI: 10.1016/j.yexcr.2020.112194] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 07/09/2020] [Accepted: 07/21/2020] [Indexed: 12/11/2022]
Abstract
Inflammation plays a critical role in the development of atherosclerosis (AS), which has been identified as a major predisposing factor for stroke. Macrophages and VSMCs are associated with plaque formation and progression. Macrophages can dynamically change into two main functional phenotypes, namely M1 and M2, they can produce either pro-inflammatory or anti-inflammatory factors which may affect the outcome of inflammation. As a member of CTRPs family, CTRP9 has been reported play important protective roles in the cardiovascular system. However, whether CTRP9 can regulate macrophage activation status in inflammatory responses and have effect on VSMCs behaviors in co-culture system have not been fully investigated. In the present study, using peritoneal macrophages treated with CTRP9, we found that CTRP9 facilitated macrophages towards M1 phenotype, promoted TNF-α secretion and MMPs expression. CTRP9 showed synergistic effect with LPS in inducing M1 macrophages. In macrophages-VSMCs co-culture system, apoptosis and down-regulated proliferation of VSMCs were accelerated with CTRP9-treated macrophages. Then we attempted to explore the underlying molecular mechanisms of CTRP9 resulting in M1 activation. The c-Jun NH2-terminal kinases (JNK) are members of the mitogen activated protein kinases (MAPK) family, plays a central role in the cell stress response, with outcomes ranging from cell death to cell proliferation and survival. We found JNK expression was upregulated following CTRP9 stimulation, and inhibiting JNK phosphorylation level was associated with decreased expression of M1 markers and TNF-α concentration. Moreover, VSMCs apoptosis were ameliorated after inhibition of JNK. These results suggested that CTRP9 may promote macrophage towards M1 activation status through JNK signaling pathway activation.
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Beneficial effect of STAT3 decoy oligodeoxynucleotide transfection on organ injury and mortality in mice with cecal ligation and puncture-induced sepsis. Sci Rep 2020; 10:15316. [PMID: 32943679 PMCID: PMC7498613 DOI: 10.1038/s41598-020-72136-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Accepted: 08/24/2020] [Indexed: 12/25/2022] Open
Abstract
Sepsis is a major clinical challenge with unacceptably high mortality. The signal transducers and activators of transcription (STAT) family of transcription factors is known to activate critical mediators of cytokine responses, and, among this family, STAT3 is implicated to be a key transcription factor in both immunity and inflammatory pathways. We investigated whether in vivo introduction of synthetic double-stranded STAT3 decoy oligodeoxynucleotides (ODNs) can provide benefits for reducing organ injury and mortality in mice with cecal ligation and puncture (CLP)-induced polymicrobial sepsis. We found that STAT3 was rapidly activated in major end-organ tissues following CLP, which was accompanied by activation of the upstream kinase JAK2. Transfection of STAT3 decoy ODNs downregulated pro-inflammatory cytokine/chemokine overproduction in CLP mice. Moreover, STAT3 decoy ODN transfection significantly reduced the increases in tissue mRNAs and proteins of high mobility group box 1 (HMGB1) and strongly suppressed the excessive elevation in serum HMGB1 levels in CLP mice. Finally, STAT3 decoy ODN administration minimized the development of sepsis-driven major end-organ injury and led to a significant survival advantage in mice after CLP. Our results suggest a critical role of STAT3 in the sepsis pathophysiology and the potential usefulness of STAT3 decoy ODNs for sepsis gene therapy.
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Basu A, Das AS, Borah PK, Duary RK, Mukhopadhyay R. Biochanin A impedes STAT3 activation by upregulating p38δ MAPK phosphorylation in IL-6-stimulated macrophages. Inflamm Res 2020; 69:1143-1156. [PMID: 32852592 DOI: 10.1007/s00011-020-01387-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 07/26/2020] [Accepted: 07/29/2020] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVE IL-6-induced STAT3 activation is associated with various chronic inflammatory diseases. In this study, we investigated the anti-STAT3 mechanism of the dietary polyphenol, biochanin A (BCA), in IL-6-treated macrophages. METHODS The effect of BCA on STAT3 and p38 MAPK was analyzed by immunoblot. The localization of both these transcription factors was determined by immunofluorescence and fractionation studies. The impact on DNA-binding activity of STAT3 was studied by luciferase assay. To understand which of the isoforms of p38 MAPK was responsible for BCA-mediated regulation of STAT3, overexpression of the proteins, site-directed mutagenesis, pull-down assays and computational analysis were performed. Finally, adhesion-migration assays and semi-quantitative PCR were employed to understand the biological effects of BCA-mediated regulation of STAT3. RESULTS BCA prevented STAT3 phosphorylation (Tyr705) and increased p38 MAPK phosphorylation (Thr180/Tyr182) in IL-6-stimulated differentiated macrophages. This opposing modulatory effect of BCA was not observed in cells treated with other stress-inducing stimuli that activate p38 MAPK. BCA abrogated IL-6-induced nuclear translocation of phospho-STAT3 and its transcriptional activity, while increasing the cellular abundance of phospho-p38 MAPK. BCA-induced phosphorylation of p38δ, but not α, β, or γ was responsible for impeding IL-6-induced STAT3 phosphorylation. Interestingly, interaction with phospho-p38δ masked the Tyr705 residue of STAT3, preventing its phosphorylation. BCA significantly reduced STAT3-dependent expression of icam-1 and mcp-1 diminishing IL-6-mediated monocyte adhesion and migration. CONCLUSION This differential regulation of STAT3 and p38 MAPK in macrophages establishes a novel anti-inflammatory mechanism of BCA which could be important for the prevention of IL-6-associated chronic inflammatory diseases.
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Affiliation(s)
- Anandita Basu
- Department of Molecular Biology and Biotechnology, Tezpur University, Napaam, Assam, 784028, India
| | - Anindhya Sundar Das
- Department of Molecular Biology and Biotechnology, Tezpur University, Napaam, Assam, 784028, India
| | - Pallab Kumar Borah
- Department of Food Engineering and Technology, Tezpur University, Tezpur, Assam, 784028, India
| | - Raj Kumar Duary
- Department of Food Engineering and Technology, Tezpur University, Tezpur, Assam, 784028, India
| | - Rupak Mukhopadhyay
- Department of Molecular Biology and Biotechnology, Tezpur University, Napaam, Assam, 784028, India.
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Herrera-Uribe J, Liu H, Byrne KA, Bond ZF, Loving CL, Tuggle CK. Changes in H3K27ac at Gene Regulatory Regions in Porcine Alveolar Macrophages Following LPS or PolyIC Exposure. Front Genet 2020; 11:817. [PMID: 32973863 PMCID: PMC7468443 DOI: 10.3389/fgene.2020.00817] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Accepted: 07/08/2020] [Indexed: 12/17/2022] Open
Abstract
Changes in chromatin structure, especially in histone modifications (HMs), linked with chromatin accessibility for transcription machinery, are considered to play significant roles in transcriptional regulation. Alveolar macrophages (AM) are important immune cells for protection against pulmonary pathogens, and must readily respond to bacteria and viruses that enter the airways. Mechanism(s) controlling AM innate response to different pathogen-associated molecular patterns (PAMPs) are not well defined in pigs. By combining RNA sequencing (RNA-seq) with chromatin immunoprecipitation and sequencing (ChIP-seq) for four histone marks (H3K4me3, H3K4me1, H3K27ac and H3K27me3), we established a chromatin state map for AM stimulated with two different PAMPs, lipopolysaccharide (LPS) and Poly(I:C), and investigated the potential effect of identified histone modifications on transcription factor binding motif (TFBM) prediction and RNA abundance changes in these AM. The integrative analysis suggests that the differential gene expression between non-stimulated and stimulated AM is significantly associated with changes in the H3K27ac level at active regulatory regions. Although global changes in chromatin states were minor after stimulation, we detected chromatin state changes for differentially expressed genes involved in the TLR4, TLR3 and RIG-I signaling pathways. We found that regions marked by H3K27ac genome-wide were enriched for TFBMs of TF that are involved in the inflammatory response. We further documented that TF whose expression was induced by these stimuli had TFBMs enriched within H3K27ac-marked regions whose chromatin state changed by these same stimuli. Given that the dramatic transcriptomic changes and minor chromatin state changes occurred in response to both stimuli, we conclude that regulatory elements (i.e. active promoters) that contain transcription factor binding motifs were already active/poised in AM for immediate inflammatory response to PAMPs. In summary, our data provides the first chromatin state map of porcine AM in response to bacterial and viral PAMPs, contributing to the Functional Annotation of Animal Genomes (FAANG) project, and demonstrates the role of HMs, especially H3K27ac, in regulating transcription in AM in response to LPS and Poly(I:C).
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Affiliation(s)
- Juber Herrera-Uribe
- Department of Animal Science, Iowa State University, Ames, IA, United States
| | - Haibo Liu
- Department of Animal Science, Iowa State University, Ames, IA, United States
| | - Kristen A Byrne
- Food Safety and Enteric Pathogens Research Unit, National Animal Disease Center, USDA-Agriculture Research Service, Ames, IA, United States
| | - Zahra F Bond
- Food Safety and Enteric Pathogens Research Unit, National Animal Disease Center, USDA-Agriculture Research Service, Ames, IA, United States
| | - Crystal L Loving
- Food Safety and Enteric Pathogens Research Unit, National Animal Disease Center, USDA-Agriculture Research Service, Ames, IA, United States
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25
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Lu Y, Zhou Q, Lu JW, Wang WS, Sun K. Involvement of STAT3 in the synergistic induction of 11β-HSD1 by SAA1 and cortisol in human amnion fibroblasts. Am J Reprod Immunol 2019; 82:e13150. [PMID: 31131948 DOI: 10.1111/aji.13150] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 05/13/2019] [Accepted: 05/16/2019] [Indexed: 02/01/2023] Open
Abstract
PROBLEM Cortisol, which is regenerated from biologically inactive cortisone by 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1) in human fetal membranes, may play an important role in human parturition. Recently, we have demonstrated that human fetal membranes are capable of de novo synthesis of serum amyloid A1 (SAA1), an acute-phase protein of inflammation, and SAA1 may be engaged in multiple actions associated with human parturition. It remains to be determined whether SAA1 can interact with cortisol in the regulation of 11β-HSD1 in the fetal membranes. METHOD OF STUDY In the current study, we examined the regulation of 11β-HSD1 expression by SAA1, and the interaction between SAA1 and cortisol in the regulation of 11β-HSD1 expression in primary human amnion fibroblasts and amnion tissue. RESULTS Either SAA1 or cortisol induced 11β-HSD1 expression in a concentration-dependent manner. Combination of SAA1 and cortisol synergistically enhanced 11β-HSD1 expression. Mechanism studies revealed that SAA1 and cortisol induced the phosphorylation of the transcription factor STAT3 in a sequential order with the induction by SAA1 preceding the induction by cortisol. Furthermore, the induction of 11β-HSD1 expression by either SAA1 or cortisol or combination of SAA1 and cortisol was blocked by STAT3 inhibition with its antagonist S3I-201 or siRNA-mediated knockdown. CONCLUSION This study has demonstrated that SAA1 and cortisol can reinforce each other in the induction of 11β-HSD1 expression through sequential phosphorylation of STAT3. The synergistic enhancement of 11β-HSD1 expression by SAA1 and cortisol may lead to excessive cortisol accumulation in the fetal membranes at parturition.
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Affiliation(s)
- Yi Lu
- Center for Reproductive Medicine, School of Medicine, Ren Ji Hospital, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China
| | - Qiong Zhou
- Department of Obstetrics and Gynecology, School of Medicine, Ren Ji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Jiang-Wen Lu
- Center for Reproductive Medicine, School of Medicine, Ren Ji Hospital, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China
| | - Wang-Sheng Wang
- Center for Reproductive Medicine, School of Medicine, Ren Ji Hospital, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China
| | - Kang Sun
- Center for Reproductive Medicine, School of Medicine, Ren Ji Hospital, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, China
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26
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Choi JY, Yun J, Hwang CJ, Lee HP, Kim HD, Chun H, Park PH, Choi DY, Han SB, Hong JT. (E)-2-methoxy-4-(3-(4-methoxyphenyl) prop-1-en-1-yl) Phenol Ameliorates MPTP-Induced Dopaminergic Neurodegeneration by Inhibiting the STAT3 Pathway. Int J Mol Sci 2019; 20:ijms20112632. [PMID: 31146332 PMCID: PMC6600543 DOI: 10.3390/ijms20112632] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Revised: 05/23/2019] [Accepted: 05/24/2019] [Indexed: 01/08/2023] Open
Abstract
Neuroinflammation is implicated in dopaminergic neurodegeneration. We have previously demonstrated that (E)-2-methoxy-4-(3-(4-methoxyphenyl) prop-1-en-1-yl) phenol (MMPP), a selective signal transducer and activator of transcription 3 (STAT3) inhibitor, has anti-inflammatory properties in several inflammatory disease models. We investigated whether MMPP could protect against 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced dopaminergic cell loss and behavioral impairment. Imprinting control region (ICR) mice (8 weeks old, n = 10 per group) were administered MMPP (5 mg/kg) in drinking water for 1 month, and injected with MPTP (15 mg/kg, four times with 2 h intervals) during the last 7 days of treatment. MMPP decreased MPTP-induced behavioral impairments in rotarod, pole, and gait tests. We also showed that MMPP ameliorated dopamine depletion in the striatum and inflammatory marker elevation in primary cultured neurons by high-performance liquid chromatography and immunohistochemical analysis. Increased activation of STAT3, p38, and monoamine oxidase B (MAO-B) were observed in the substantia nigra and striatum after MPTP injection, effects that were attenuated by MMPP treatment. Furthermore, MMPP inhibited STAT3 activity and expression of neuroinflammatory proteins, including ionized calcium binding adaptor molecule 1 (Iba1), inducible nitric oxide synthase (iNOS), and glial fibrillary acidic protein (GFAP) in 1-methyl-4-phenylpyridinium (MPP+; 0.5 mM)-treated primary cultured cells. However, mitogen-activated protein kinase (MAPK) inhibitors augmented the activity of MMPP. Collectively, our results suggest that MMPP may be an anti-inflammatory agent that attenuates dopaminergic neurodegeneration and neuroinflammation through MAO-B and MAPK pathway-dependent inhibition of STAT3 activation.
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Affiliation(s)
- Ji Yeon Choi
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaemgmyeong 1-ro, Cheongju 28160, Korea.
| | - Jaesuk Yun
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaemgmyeong 1-ro, Cheongju 28160, Korea.
| | - Chul Ju Hwang
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaemgmyeong 1-ro, Cheongju 28160, Korea.
| | - Hee Pom Lee
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaemgmyeong 1-ro, Cheongju 28160, Korea.
| | - Hae Deun Kim
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaemgmyeong 1-ro, Cheongju 28160, Korea.
| | - Hyungok Chun
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaemgmyeong 1-ro, Cheongju 28160, Korea.
| | - Pil-Hoon Park
- College of Pharmacy, Yeungnam University, 280, Daehak-ro, Gyeongsan, Gyeongbuk 38541, Korea.
| | - Dong Young Choi
- College of Pharmacy, Yeungnam University, 280, Daehak-ro, Gyeongsan, Gyeongbuk 38541, Korea.
| | - Sang-Bae Han
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaemgmyeong 1-ro, Cheongju 28160, Korea.
| | - Jin Tae Hong
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaemgmyeong 1-ro, Cheongju 28160, Korea.
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27
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Lu M, Dai Y, Xu M, Zhang C, Ma Y, Gao P, Teng M, Jiao K, Huang G, Zhang J, Yang Y, Chu Z. The Attenuation of 14-3-3ζ is Involved in the Caffeic Acid-Blocked Lipopolysaccharide-Stimulated Inflammatory Response in RAW264.7 Macrophages. Inflammation 2018; 40:1753-1760. [PMID: 28688098 DOI: 10.1007/s10753-017-0618-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Inflammation plays important roles in the initiation and progress of many diseases. Caffeic acid (CaA) is a naturally occurring hydroxycinnamic acid derivative, which shows hypotoxicity and diverse biological functions, including anti-inflammation. The molecular mechanisms involved in the CaA-inhibited inflammatory response are very complex; generally, the down-regulated phosphorylation of such important transcriptional factors, for example, nuclear factor κB (NF-κB) and signal transducers and activators of transcription-3 (STAT-3), plays an important role. Here, we found that in RAW264.7 macrophage cells, CaA blocked lipopolysaccharide (LPS)-stimulated inflammatory response by attenuating the expression of 14-3-3ζ (a phosphorylated protein regulator). Briefly, the increased expression of 14-3-3ζ was involved in the LPS-induced inflammatory response. CaA blocked the LPS-elevated 14-3-3ζ via attenuating the LPS-induced tumor necrosis factor-α (TNF-α) secretion and via enhancing the 14-3-3ζ ubiquitination. These processes inhibited the LPS-induced activation (phosphorylation) of NF-κB and STAT-3, in turn blocked the transcriptional activation of inducible NO synthase (iNOS), interleukin-6 (IL-6), and TNF-α, and finally attenuated the productions of nitric oxide (NO), IL-6, and TNF-α. By understanding a novel mechanism whereby CaA inhibited the 14-3-3ζ, our study expanded the understanding of the molecular mechanisms involved in the anti-inflammation potential induced by CaA.
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Affiliation(s)
- Ming Lu
- The Second Affiliated Hospital, Nanjing Medical University, Nanjing, 210011, China
| | - Yi Dai
- The Second Affiliated Hospital, Nanjing Medical University, Nanjing, 210011, China
| | - Miao Xu
- The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, China
| | - Chi Zhang
- The Second Affiliated Hospital, Nanjing Medical University, Nanjing, 210011, China
| | - Yuhong Ma
- The Second Affiliated Hospital, Nanjing Medical University, Nanjing, 210011, China
| | - Ping Gao
- The Second Affiliated Hospital, Nanjing Medical University, Nanjing, 210011, China
| | - Mengying Teng
- The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, China
| | - Kailin Jiao
- The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, China
| | - Guangming Huang
- The Second Affiliated Hospital, Nanjing Medical University, Nanjing, 210011, China
| | - Jianping Zhang
- The Second Affiliated Hospital, Nanjing Medical University, Nanjing, 210011, China.
| | - Ye Yang
- The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, 211166, China.
| | - Zhiping Chu
- The Second Affiliated Hospital, Nanjing Medical University, Nanjing, 210011, China.
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Yao W, Li H, Luo G, Li X, Chen C, Yuan D, Chi X, Xia Z, Hei Z. SERPINB1 ameliorates acute lung injury in liver transplantation through ERK1/2-mediated STAT3-dependent HO-1 induction. Free Radic Biol Med 2017; 108:542-553. [PMID: 28427999 DOI: 10.1016/j.freeradbiomed.2017.04.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 03/20/2017] [Accepted: 04/11/2017] [Indexed: 02/07/2023]
Abstract
BACKGROUND Postoperative acute lung injury (ALI) is a severe complication after liver transplantation, which severely affects postoperative patients' survival. The underlying mechanism is largely unknown and effective treatment limited. We explored the role of serpin protease inhibitor B1 (SERPINB1), a potent inhibitor of neutrophil serine proteases, in ALI in liver transplantation and its interplay with signal transducer and activator of transcription 3 (STAT3) and heme oxygenase-1 (HO-1). METHODS Sprague-Dawley rats underwent orthotopic autologous liver transplantation (OALT) were treated with recombinant SB1 (rSB1) in the absence or presence of STAT3 specific inhibitor, WP1066. Then SB1-siRNA was used to knockdown endogenous SERPINB1. Also, alveolar epithelial cells RLE-6TN and BEAS-2B were exposed to TNF-α without or with SERPINB1 and the roles of STAT3 and HO-1 were examined by respective gene knockdown. Finally, rats were treated with ERK1/2 inhibitor U0126, p38 MAPK inhibitor SB20358, or JNK inhibitor SP600125 after rSB1 pretreatment and then subjected to OALT. RESULTS OALT resulted in increased pulmonary inflammation and oxidative stress, accompanied by severe lung injury that was coincident with increased pulmonary SERPINB1, HO-1, and STAT3. SERPINB1 gene knockdown increased post-OALT lung injury and pulmonary inflammation. rSB1 administration dose-dependently reduced post-OALT lung injury and decreased pulmonary inflammation and oxidative stress with concomitant enhanced HO-1 and STAT3 protein expression. These protective effects of SERPINB1 were abolished by STAT3 inhibition. Similarly, in RLE-6TN cells and BEAS-2B cells, TNF-α induced cell injury and increased HO-1 and STAT3. SERPINB1 further increased HO-1 and STAT3 protein expression and attenuated TNF-α-induced cellular oxidative stress, apoptotic cells, and mitochondria damage, which were cancelled by STAT3 or HO-1 gene knockdown. Furthermore, these SERPINB1-mediated STAT3/HO-1 activation and pulmonary protective effects were abolished by inhibition of ERK1/2 but not p38 MAPK or JNK. CONCLUSIONS SERPINB1 decreased inflammation, ameliorated oxidative stress in the lung, and attenuated ALI in rats with OALT by activating HO-1 and it does so through STAT3 and it does so by activating ERK1/2.
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Affiliation(s)
- Weifeng Yao
- Department of Anesthesiology, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510630, China
| | - Haobo Li
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical university, Zhanjiang, Guangdong 524001, China; Department of Anaesthesiology, The University of Hong Kong, 999077, Hong Kong, China
| | - Gangjian Luo
- Department of Anesthesiology, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510630, China
| | - Xiang Li
- Department of Anesthesiology, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510630, China
| | - Chaojin Chen
- Department of Anesthesiology, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510630, China
| | - Dongdong Yuan
- Department of Anesthesiology, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510630, China
| | - Xinjin Chi
- Department of Anesthesiology, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510630, China
| | - Zhengyuan Xia
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical university, Zhanjiang, Guangdong 524001, China; Department of Anaesthesiology, The University of Hong Kong, 999077, Hong Kong, China
| | - Ziqing Hei
- Department of Anesthesiology, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510630, China.
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Rozovski U, Harris DM, Li P, Liu Z, Jain P, Veletic I, Ferrajoli A, Burger J, O'Brien S, Bose P, Thompson P, Jain N, Wierda W, Keating MJ, Estrov Z. Constitutive Phosphorylation of STAT3 by the CK2-BLNK-CD5 Complex. Mol Cancer Res 2017; 15:610-618. [PMID: 28130399 DOI: 10.1158/1541-7786.mcr-16-0291] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 12/19/2016] [Accepted: 01/10/2017] [Indexed: 12/25/2022]
Abstract
In chronic lymphocytic leukemia (CLL), STAT3 is constitutively phosphorylated on serine 727 and plays a role in the pathobiology of CLL. However, what induces constitutive phosphorylation of STAT3 is currently unknown. Mass spectrometry was used to identify casein kinase 2 (CK2), a serine/threonine kinase that coimmunoprecipitated with serine phosphorylated STAT3 (pSTAT3). Furthermore, activated CK2 incubated with recombinant STAT3 induced phosphorylation of STAT3 on serine 727. Although STAT3 and CK2 are present in normal B- and T cells, STAT3 is not constitutively phosphorylated in these cells. Further study found that CD5 and BLNK coexpressed in CLL, but not in normal B- or T cells, are required for STAT3 phosphorylation. To elucidate the relationship of CD5 and BLNK to CK2 and STAT3, STAT3 was immunoprecipitated from CLL cells, and CK2, CD5, and BLNK were detected in the immunoprecipitate. Conversely, STAT3, CD5, and BLNK were in the immunoprecipitate of CLL cells immunoprecipitated with CK2 antibodies. Furthermore, siRNA knockdown of CD5 or BLNK, or treatment with CD5-neutralizing antibodies significantly reduced the levels of serine pSTAT3 in CLL cells. Finally, confocal microscopy determined that CD5 is cell membrane bound, and fractionation studies revealed that the CK2/CD5/BLNK/STAT3 complex remains in the cytoplasm, whereas serine pSTAT3 is shuttled to the nucleus.Implications: These data show that the cellular proteins CK2, CD5, and BLNK are required for constitutive phosphorylation of STAT3 in CLL. Whether this protein complex phosphorylates other proteins or inhibiting its activity would have clinical benefit in patients has yet to be determined. Mol Cancer Res; 15(5); 610-8. ©2017 AACR.
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Affiliation(s)
- Uri Rozovski
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas.,Division of Hematology, Davidoff Cancer Center, Rabin Medical Center, Petah Tiqva, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - David M Harris
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Ping Li
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Zhiming Liu
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Preetesh Jain
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Ivo Veletic
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Alessandra Ferrajoli
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Jan Burger
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Susan O'Brien
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Prithviraj Bose
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Philip Thompson
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Nitin Jain
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - William Wierda
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Michael J Keating
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Zeev Estrov
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, Texas.
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Kell DB, Pretorius E. On the translocation of bacteria and their lipopolysaccharides between blood and peripheral locations in chronic, inflammatory diseases: the central roles of LPS and LPS-induced cell death. Integr Biol (Camb) 2016; 7:1339-77. [PMID: 26345428 DOI: 10.1039/c5ib00158g] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
We have recently highlighted (and added to) the considerable evidence that blood can contain dormant bacteria. By definition, such bacteria may be resuscitated (and thus proliferate). This may occur under conditions that lead to or exacerbate chronic, inflammatory diseases that are normally considered to lack a microbial component. Bacterial cell wall components, such as the endotoxin lipopolysaccharide (LPS) of Gram-negative strains, are well known as potent inflammatory agents, but should normally be cleared. Thus, their continuing production and replenishment from dormant bacterial reservoirs provides an easy explanation for the continuing, low-grade inflammation (and inflammatory cytokine production) that is characteristic of many such diseases. Although experimental conditions and determinants have varied considerably between investigators, we summarise the evidence that in a great many circumstances LPS can play a central role in all of these processes, including in particular cell death processes that permit translocation between the gut, blood and other tissues. Such localised cell death processes might also contribute strongly to the specific diseases of interest. The bacterial requirement for free iron explains the strong co-existence in these diseases of iron dysregulation, LPS production, and inflammation. Overall this analysis provides an integrative picture, with significant predictive power, that is able to link these processes via the centrality of a dormant blood microbiome that can resuscitate and shed cell wall components.
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Affiliation(s)
- Douglas B Kell
- School of Chemistry and The Manchester Institute of Biotechnology, The University of Manchester, 131, Princess St, Manchester M1 7DN, Lancs, UK.
| | - Etheresia Pretorius
- Department of Physiology, Faculty of Health Sciences, University of Pretoria, Arcadia 0007, South Africa.
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31
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Li SW, Wang CY, Jou YJ, Yang TC, Huang SH, Wan L, Lin YJ, Lin CW. SARS coronavirus papain-like protease induces Egr-1-dependent up-regulation of TGF-β1 via ROS/p38 MAPK/STAT3 pathway. Sci Rep 2016; 6:25754. [PMID: 27173006 PMCID: PMC4865725 DOI: 10.1038/srep25754] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Accepted: 04/21/2016] [Indexed: 12/31/2022] Open
Abstract
SARS coronavirus (SARS-CoV) papain-like protease (PLpro) has been identified in TGF-β1 up-regulation in human promonocytes (Proteomics 2012, 12: 3193-205). This study investigates the mechanisms of SARS-CoV PLpro-induced TGF-β1 promoter activation in human lung epithelial cells and mouse models. SARS-CoV PLpro dose- and time-dependently up-regulates TGF-β1 and vimentin in A549 cells. Dual luciferase reporter assays with TGF-β1 promoter plasmids indicated that TGF-β1 promoter region between -175 to -60, the Egr-1 binding site, was responsible for TGF-β1 promoter activation induced by SARS-CoV PLpro. Subcellular localization analysis of transcription factors showed PLpro triggering nuclear translocation of Egr-1, but not NF-κB and Sp-1. Meanwhile, Egr-1 silencing by siRNA significantly reduced PLpro-induced up-regulation of TGF-β1, TSP-1 and pro-fibrotic genes. Furthermore, the inhibitors for ROS (YCG063), p38 MAPK (SB203580), and STAT3 (Stattic) revealed ROS/p38 MAPK/STAT3 pathway involving in Egr-1 dependent activation of TGF-β1 promoter induced by PLpro. In a mouse model with a direct pulmonary injection, PLpro stimulated macrophage infiltration into lung, up-regulating Egr-1, TSP-1, TGF-β1 and vimentin expression in lung tissues. The results revealed that SARS-CoV PLpro significantly triggered Egr-1 dependent activation of TGF-β1 promoter via ROS/p38 MAPK/STAT3 pathway, correlating with up-regulation of pro-fibrotic responses in vitro and in vivo.
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Affiliation(s)
- Shih-Wein Li
- Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung, Taiwan
| | - Ching-Ying Wang
- Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung, Taiwan
| | - Yu-Jen Jou
- Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung, Taiwan
| | - Tsuey-Ching Yang
- Department of Biotechnology and Laboratory Science in Medicine, National Yang Ming University, Taipei, Taiwan
| | - Su-Hua Huang
- Department of Biotechnology, Asia University, Wufeng, Taichung, Taiwan
| | - Lei Wan
- Department of Medical Genetics and Medical Research, China Medical University Hospital, Taichung, Taiwan
| | - Ying-Ju Lin
- Department of Medical Genetics and Medical Research, China Medical University Hospital, Taichung, Taiwan
| | - Cheng-Wen Lin
- Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung, Taiwan.,Department of Biotechnology, Asia University, Wufeng, Taichung, Taiwan
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Meng A, Zhang X, Wu S, Wu M, Li J, Yan X, Kopec-Harding K, Wu J. In vitro modeling of COPD inflammation and limitation of p38 inhibitor - SB203580. Int J Chron Obstruct Pulmon Dis 2016; 11:909-17. [PMID: 27199554 PMCID: PMC4857829 DOI: 10.2147/copd.s99810] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Background Systemic inflammation and steroid resistance are the hallmarks of COPD. We examined the impact of p38 inhibitor (SB203580) in in vitro assays of systemic inflammation using pulmonary cells and patients’ sera. Objective and methods Data from 66 COPD patients and 15 age-/sex-matched healthy controls were compared. Interleukin-10 (IL-10), tumor necrosis factor-α (TNF-α), and CCL5 were measured in serum samples and culture media from peripheral blood mononuclear cells. The impact of sera on IL-10 and CCL5 expression in alveolar macrophage cell line (MH-S) was examined. The in vitro effects of SB203580 on lipopolysaccharide-induced inflammation were investigated. Results Peripheral blood mononuclear cells from Global initiative for chronic Obstructive Lung Disease (GOLD) D patients produced more CCL5 and TNF-α, and less IL-10 compared to GOLD A–C patients. SB203580 treatment suppressed CCL5 and TNF-α and stimulated IL-10 production; however, the effect of SB203580 on IL-10 was lower in the COPD group. Culture of MH-S cells with COPD serum showed a significant increase in CCL5 and a significant decrease in IL-10 compared to healthy serum. This effect was not suppressed with SB203580 treatment. Conclusion COPD serum has a potent proinflammatory effect on pulmonary cells. Inhibition of p38 phoshorylation had a limited effect in restoring impaired lymphocyte function and suppressing inflammation induced by COPD serum, implying important p38-independent inflammatory mechanisms in COPD.
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Affiliation(s)
- Aihong Meng
- Respiratory Division, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, Peoples' Republic of China
| | - Xiaopeng Zhang
- Department of Thoracic Surgery, Hebei Province General Hospital, Shijiazhuang, Hebei, Peoples' Republic of China
| | - Siyu Wu
- Respiratory Division, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, Peoples' Republic of China
| | - Mingxia Wu
- Respiratory Division, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, Peoples' Republic of China
| | - Jing Li
- Respiratory Division, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, Peoples' Republic of China
| | - Xixin Yan
- Respiratory Division, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, Peoples' Republic of China
| | - Kamilla Kopec-Harding
- Centre for Musculoskeletal Research, Institute of Inflammation and Repair, University of Manchester, Manchester, UK
| | - Jiakai Wu
- Centre for Respiratory and Allergy, Institute of Inflammation and Repair, University of Manchester, Manchester, UK
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Xia L, Yin Z, Mao L, Wang X, Liu J, Jiang X, Zhang Z, Lin K, Chang J, Fang B. Akermanite bioceramics promote osteogenesis, angiogenesis and suppress osteoclastogenesis for osteoporotic bone regeneration. Sci Rep 2016; 6:22005. [PMID: 26911441 PMCID: PMC4766478 DOI: 10.1038/srep22005] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Accepted: 02/05/2016] [Indexed: 11/09/2022] Open
Abstract
It is a big challenge for bone healing under osteoporotic pathological condition with impaired angiogenesis, osteogenesis and remodeling. In the present study, the effect of Ca, Mg, Si containing akermanite bioceramics (Ca2MgSi2O7) extract on cell proliferation, osteogenic differentiation and angiogenic factor expression of BMSCs derived from ovariectomized rats (BMSCs-OVX) as well as the expression of osteoclastogenic factors was evaluated. The results showed that akermanite could enhance cell proliferation, ALP activity, expression of Runx2, BMP-2, BSP, OPN, OCN, OPG and angiogenic factors including VEGF and ANG-1. Meanwhile, akermanite could repress expression of osteoclastogenic factors including RANKL and TNF-α. Moreover, akermanite could activate ERK, P38, AKT and STAT3 signaling pathways, while crosstalk among these signaling pathways was evident. More importantly, the effect of akermanite extract on RANKL-induced osteoclastogenesis was evaluated by TRAP staining and real-time PCR assay. The results showed that akermanite could suppress osteoclast formation and expression of TRAP, cathepsin K and NFATc1. The in vivo experiments revealed that akermanite bioceramics dramatically stimulated osteogenesis and angiogenesis in an OVX rat critical-sized calvarial defect model. All these results suggest that akermanite bioceramics with the effects of Mg and Si ions on osteogenesis, angiogenesis and osteoclastogenesis are promising biomaterials for osteoporotic bone regeneration.
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Affiliation(s)
- Lunguo Xia
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Science, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, China
| | - Zhilan Yin
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
| | - Lixia Mao
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Science, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, China
| | - Xiuhui Wang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
| | - Jiaqiang Liu
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Science, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, China
| | - Xinquan Jiang
- Oral Bioengineering and regenerative medicine Lab, Shanghai Research Institute of Stomatology, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
| | - Zhiyuan Zhang
- Department of Oral and Maxillofacial-Head and Neck Oncology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Kaili Lin
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China.,School &Hospital of Stomatology, Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai 200072, China
| | - Jiang Chang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
| | - Bing Fang
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Science, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, China
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Modified Vaccinia virus Ankara but not vaccinia virus induces chemokine expression in cells of the monocyte/macrophage lineage. Virol J 2015; 12:21. [PMID: 25889495 PMCID: PMC4349667 DOI: 10.1186/s12985-015-0252-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Accepted: 01/29/2015] [Indexed: 12/27/2022] Open
Abstract
Background The orthopoxvirus strain Modified Vaccinia virus Ankara (MVA) rapidly induces innate immune responses. Previously, we demonstrated that CCL2 and CCR1 are important players in MVA induced recruitment of leukocytes to the lung. Alveolar macrophages are sentinel cells in the lung, which are likely amongst the first cells of the immune system to encounter and respond to virus during respiratory infection. Therefore we examined the potential of the murine alveolar macrophage MH-S cell line as a model to study chemokine expression during infection with MVA and vaccinia virus (VACV) strain Western Reserve (WR). Findings MVA but not VACV infected MH-S cells increased the expression of the CXCR2 acting chemokine CXCL2. MH-S cells constitutively produced CCL2 and CCR1 acting chemokines CCL3, CCL5 and CCL9. Consequently, supernatants of mock treated and virus infected MH-S cells induced chemotaxis of murine promyelocyte MPRO cells and human monocytic THP-1 cells at the same level. However, supernatants of MVA infected MH-S cells significantly increased chemotaxis of the CCR2 deficient human monocytic cell line U-937. Chemotaxis of all three cell types was inhibited by J 113863, a CCR1 antagonist. Additionally, we show that MVA but not VACV WR infection of THP-1 cells induces expression of C-C motif and C-X-C motif chemokines and generates a chemotactic activity for monocytes, which was J 113863 sensitive. Conclusions These results extend our previous findings, demonstrating that MVA but not VACV WR induces chemokine production in alveolar macrophages and monocytes, which can induce recruitment of monocytes in a CCR1 dependent manner. Electronic supplementary material The online version of this article (doi:10.1186/s12985-015-0252-1) contains supplementary material, which is available to authorized users.
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