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Lu H. Inflammatory liver diseases and susceptibility to sepsis. Clin Sci (Lond) 2024; 138:435-487. [PMID: 38571396 DOI: 10.1042/cs20230522] [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: 09/03/2023] [Revised: 01/09/2024] [Accepted: 03/12/2024] [Indexed: 04/05/2024]
Abstract
Patients with inflammatory liver diseases, particularly alcohol-associated liver disease and metabolic dysfunction-associated fatty liver disease (MAFLD), have higher incidence of infections and mortality rate due to sepsis. The current focus in the development of drugs for MAFLD is the resolution of non-alcoholic steatohepatitis and prevention of progression to cirrhosis. In patients with cirrhosis or alcoholic hepatitis, sepsis is a major cause of death. As the metabolic center and a key immune tissue, liver is the guardian, modifier, and target of sepsis. Septic patients with liver dysfunction have the highest mortality rate compared with other organ dysfunctions. In addition to maintaining metabolic homeostasis, the liver produces and secretes hepatokines and acute phase proteins (APPs) essential in tissue protection, immunomodulation, and coagulation. Inflammatory liver diseases cause profound metabolic disorder and impairment of energy metabolism, liver regeneration, and production/secretion of APPs and hepatokines. Herein, the author reviews the roles of (1) disorders in the metabolism of glucose, fatty acids, ketone bodies, and amino acids as well as the clearance of ammonia and lactate in the pathogenesis of inflammatory liver diseases and sepsis; (2) cytokines/chemokines in inflammatory liver diseases and sepsis; (3) APPs and hepatokines in the protection against tissue injury and infections; and (4) major nuclear receptors/signaling pathways underlying the metabolic disorders and tissue injuries as well as the major drug targets for inflammatory liver diseases and sepsis. Approaches that focus on the liver dysfunction and regeneration will not only treat inflammatory liver diseases but also prevent the development of severe infections and sepsis.
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Affiliation(s)
- Hong Lu
- Department of Pharmacology, SUNY Upstate Medical University, Syracuse, NY 13210, U.S.A
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2
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Ji L, Li T, Chen H, Yang Y, Lu E, Liu J, Qiao W, Chen H. The crucial regulatory role of type I interferon in inflammatory diseases. Cell Biosci 2023; 13:230. [PMID: 38124132 PMCID: PMC10734085 DOI: 10.1186/s13578-023-01188-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 12/16/2023] [Indexed: 12/23/2023] Open
Abstract
Type I interferon (IFN-I) plays crucial roles in the regulation of inflammation and it is associated with various inflammatory diseases including systemic lupus erythematosus (SLE), rheumatoid arthritis (RA), and periodontitis, impacting people's health and quality of life. It is well-established that IFN-Is affect immune responses and inflammatory factors by regulating some signaling. However, currently, there is no comprehensive overview of the crucial regulatory role of IFN-I in distinctive pathways as well as associated inflammatory diseases. This review aims to provide a narrative of the involvement of IFN-I in different signaling pathways, mainly mediating the related key factors with specific targets in the pathways and signaling cascades to influence the progression of inflammatory diseases. As such, we suggested that IFN-Is induce inflammatory regulation through the stimulation of certain factors in signaling pathways, which displays possible efficient treatment methods and provides a reference for the precise control of inflammatory diseases.
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Affiliation(s)
- Ling Ji
- Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, People's Republic of China
| | - Tianle Li
- Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, People's Republic of China
| | - Huimin Chen
- Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, People's Republic of China
| | - Yanqi Yang
- Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, People's Republic of China
- Division of Pediatric Dentistry and Orthodontics, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, People's Republic of China
| | - Eryi Lu
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, 160 Pujian Road, Shanghai, China
| | - Jieying Liu
- Department of Medical Research Center, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Wei Qiao
- Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, People's Republic of China.
- Applied Oral Sciences & Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Level 3, 34 Hospital Road, Sai Ying Pun, Hong Kong, SAR, People's Republic of China.
| | - Hui Chen
- Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, SAR, People's Republic of China.
- Division of Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Level 3, 34 Hospital Road, Sai Ying Pun, Hong Kong, SAR, People's Republic of China.
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Nilsen KE, Zhang B, Skjesol A, Ryan L, Vagle H, Bøe MH, Orning P, Kim H, Bakke SS, Elamurugan K, Mestvedt IB, Stenvik J, Husebye H, Lien E, Espevik T, Yurchenko M. Peptide derived from SLAMF1 prevents TLR4-mediated inflammation in vitro and in vivo. Life Sci Alliance 2023; 6:e202302164. [PMID: 37788908 PMCID: PMC10547912 DOI: 10.26508/lsa.202302164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 09/21/2023] [Accepted: 09/22/2023] [Indexed: 10/05/2023] Open
Abstract
Inflammation plays a crucial role in the development and progression of many diseases, and is often caused by dysregulation of signalling from pattern recognition receptors, such as TLRs. Inhibition of key protein-protein interactions is an attractive target for treating inflammation. Recently, we demonstrated that the signalling lymphocyte activation molecule family 1 (SLAMF1) positively regulates signalling downstream of TLR4 and identified the interaction interface between SLAMF1 and the TLR4 adaptor protein TRIF-related adapter molecule (TRAM). Based on these findings, we developed a SLAMF1-derived peptide, P7, which is linked to a cell-penetrating peptide for intracellular delivery. We found that P7 peptide inhibits the expression and secretion of IFNβ and pro-inflammatory cytokines (TNF, IL-1β, IL-6) induced by TLR4, and prevents death in mice subjected to LPS shock. The mechanism of action of P7 peptide is based on interference with several intracellular protein-protein interactions, including TRAM-SLAMF1, TRAM-Rab11FIP2, and TIRAP-MyD88 interactions. Overall, P7 peptide has a unique mode of action and demonstrates high efficacy in inhibiting TLR4-mediated signalling in vitro and in vivo.
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Affiliation(s)
- Kaja Elisabeth Nilsen
- https://ror.org/05xg72x27 Centre of Molecular Inflammation Research, Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Boyao Zhang
- Program in Innate Immunity, Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Astrid Skjesol
- https://ror.org/05xg72x27 Centre of Molecular Inflammation Research, Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Liv Ryan
- https://ror.org/05xg72x27 Centre of Molecular Inflammation Research, Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Hilde Vagle
- https://ror.org/05xg72x27 Centre of Molecular Inflammation Research, Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Maren Helene Bøe
- https://ror.org/05xg72x27 Centre of Molecular Inflammation Research, Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Pontus Orning
- Program in Innate Immunity, Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Hera Kim
- https://ror.org/05xg72x27 Centre of Molecular Inflammation Research, Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Siril Skaret Bakke
- https://ror.org/05xg72x27 Centre of Molecular Inflammation Research, Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Kirusika Elamurugan
- https://ror.org/05xg72x27 Centre of Molecular Inflammation Research, Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Ingvild Bergdal Mestvedt
- https://ror.org/05xg72x27 Centre of Molecular Inflammation Research, Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Jørgen Stenvik
- https://ror.org/05xg72x27 Centre of Molecular Inflammation Research, Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
- Department of Infectious Diseases, Clinic of Medicine, St. Olavs Hospital HF, Trondheim University Hospital, Trondheim, Norway
| | - Harald Husebye
- https://ror.org/05xg72x27 Centre of Molecular Inflammation Research, Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Egil Lien
- https://ror.org/05xg72x27 Centre of Molecular Inflammation Research, Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
- Program in Innate Immunity, Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Terje Espevik
- https://ror.org/05xg72x27 Centre of Molecular Inflammation Research, Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
- Department of Infectious Diseases, Clinic of Medicine, St. Olavs Hospital HF, Trondheim University Hospital, Trondheim, Norway
| | - Maria Yurchenko
- https://ror.org/05xg72x27 Centre of Molecular Inflammation Research, Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
- Department of Infectious Diseases, Clinic of Medicine, St. Olavs Hospital HF, Trondheim University Hospital, Trondheim, Norway
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Jin U, Park SJ, Lee BG, Kim JB, Kim SJ, Joe EH, Woo HG, Park SM. Critical roles of parkin and PINK1 in coxsackievirus B3-induced viral myocarditis. Microbes Infect 2023; 25:105211. [PMID: 37574181 DOI: 10.1016/j.micinf.2023.105211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 08/03/2023] [Accepted: 08/08/2023] [Indexed: 08/15/2023]
Abstract
Viral myocarditis is an inflammatory disease of the myocardium, often leads to cardiac dysfunction and death. PARKIN (PRKN) and PINK1, well known as Parkinson's disease-associated genes, have been reported to be involved in innate immunity and mitochondrial damage control. Therefore, we investigated the role of parkin and PINK1 in coxsackievirus B3 (CVB3)-induced viral myocarditis because the etiology of myocarditis is related to abnormal immune response to viral infection and mitochondrial damage. After viral infection, the survival was significantly lower and myocardial damage was more severe in parkin knockout (KO) and PINK1 KO mice compared to wild-type (WT) mice. Parkin KO and PINK1 KO showed defective immune cell recruitment and impaired production of antiviral cytokines such as interferon-gamma, allowing increased viral replication. In addition, parkin KO and PINK1 KO mice were more susceptible to CVB3-induced mitochondrial damage than WT mice, resulting in susceptibility to viral-induced cardiac damage. Finally, using publicly available RNA-seq data, we found that pathogenic mutants of the PRKN gene are more common in patients with dilated cardiomyopathy and myocarditis than in controls or the general population. This study will help elucidate the molecular mechanism of CVB3-induced viral myocarditis.
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Affiliation(s)
- Uram Jin
- Department of Pharmacology, Ajou University School of Medicine, Suwon, South Korea; Center for Convergence Research of Neurological Disorders, Ajou University School of Medicine, Suwon, South Korea; Department of Biomedical Sciences, Ajou University School of Medicine, Suwon, South Korea; Department of Cardiology, Ajou University School of Medicine, Suwon, South Korea
| | - Soo Jin Park
- Department of Pharmacology, Ajou University School of Medicine, Suwon, South Korea; Center for Convergence Research of Neurological Disorders, Ajou University School of Medicine, Suwon, South Korea; Department of Biomedical Sciences, Ajou University School of Medicine, Suwon, South Korea; Department of Thoracic and Cardiovascular Surgery, Ajou University School of Medicine, Suwon, South Korea
| | - Byoung Gil Lee
- Center for Convergence Research of Neurological Disorders, Ajou University School of Medicine, Suwon, South Korea; Department of Biomedical Sciences, Ajou University School of Medicine, Suwon, South Korea; Department of Physiology, Ajou University School of Medicine, Suwon, South Korea
| | - Jae-Bong Kim
- Department of Pharmacology, Ajou University School of Medicine, Suwon, South Korea; Center for Convergence Research of Neurological Disorders, Ajou University School of Medicine, Suwon, South Korea; Department of Biomedical Sciences, Ajou University School of Medicine, Suwon, South Korea
| | - Soo Jeong Kim
- Center for Convergence Research of Neurological Disorders, Ajou University School of Medicine, Suwon, South Korea
| | - Eun-Hye Joe
- Department of Pharmacology, Ajou University School of Medicine, Suwon, South Korea; Center for Convergence Research of Neurological Disorders, Ajou University School of Medicine, Suwon, South Korea; Department of Biomedical Sciences, Ajou University School of Medicine, Suwon, South Korea
| | - Hyun Goo Woo
- Center for Convergence Research of Neurological Disorders, Ajou University School of Medicine, Suwon, South Korea; Department of Biomedical Sciences, Ajou University School of Medicine, Suwon, South Korea; Department of Physiology, Ajou University School of Medicine, Suwon, South Korea
| | - Sang Myun Park
- Department of Pharmacology, Ajou University School of Medicine, Suwon, South Korea; Center for Convergence Research of Neurological Disorders, Ajou University School of Medicine, Suwon, South Korea; Department of Biomedical Sciences, Ajou University School of Medicine, Suwon, South Korea.
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Wang J, Chen G, Li L, Luo S, Hu B, Xu J, Luo H, Li S, Jiang Y. Sustained induction of IP-10 by MRP8/14 via the IFNβ-IRF7 axis in macrophages exaggerates lung injury in endotoxemic mice. BURNS & TRAUMA 2023; 11:tkad006. [PMID: 37701855 PMCID: PMC10494486 DOI: 10.1093/burnst/tkad006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 11/13/2022] [Accepted: 01/18/2023] [Indexed: 09/14/2023]
Abstract
Background As a damage-associated molecular pattern, the myeloid-related protein 8/14 (MRP8/14) heterodimer mediates various inflammatory diseases, such as sepsis. However, how MRP8/14 promotes lung injury by regulating the inflammatory response during endotoxemia remains largely unknown. This study aims at illuminating the pathological functions of MRP8/14 in endotoxemia. Methods An endotoxemic model was prepared with wild-type and myeloid cell-specific Mrp8 deletion (Mrp8ΔMC) mice for evaluating plasma cytokine levels. Lung injury was evaluated by hematoxylin and eosin (H&E) staining, injury scoring and wet-to-dry weight (W/D) ratio. The dynamic profile of interferon γ (IFNγ)-inducible protein 10 (IP-10) mRNA expression induced by macrophage MRP8/14 was determined by quantitative real-time polymerase chain reaction (qPCR). Immunoblotting was used to evaluate the increase in IP-10 level induced by activation of the JAK-STAT signaling pathway. Luciferase reporter assay was performed to detect the involvement of IRF7 in Ip-10 gene transcription. In vivo air pouch experiments were performed to determine the biological function of IP-10 induced by MRP8/14. Results Experiments with Mrp8ΔMC mice showed that MRP8/14 promoted the production of cytokines, including IP-10, in the bronchoalveolar lavage fluid (BALF) and lung injury in endotoxic mice. The result of qPCR showed sustained expression of Ip-10 mRNA in macrophages after treatment with MRP8/14 for 12 h. Neutralization experiments showed that the MRP8/14-induced Ip-10 expression in RAW264.7 cells was mediated by extracellular IFNβ. Western blotting with phosphorylation-specific antibodies showed that the JAK1/TYK2-STAT1 signaling pathway was activated in MRP8/14-treated RAW264.7 cells, leading to the upregulation of Ip-10 gene expression. IRF7 was further identified as a downstream regulator of the JAK-STAT pathway that mediated Ip-10 gene expression in macrophages treated with MRP8/14. In vivo air pouch experiments confirmed that the IFNβ-JAK1/TYK2-STAT1-IRF7 pathway was required for chemokine (C-X-C motif) receptor 3 (CXCR3)+ T lymphocyte migration, which promoted lung injury in the context of endotoxemia. Conclusions In summary, our study demonstrates that MRP8/14 induces sustained production of IP-10 via the IFNβ-JAK1/TYK2-STAT1-IRF7 pathway to attract CXCR3+ T lymphocytes into lung tissues and ultimately results in lung injury by an excessive inflammatory response in the context of endotoxemia.
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Affiliation(s)
- Juan Wang
- Guangdong Provincial Key Laboratory of Proteomics, State Key Laboratory of Organ Failure Research, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Guiming Chen
- Guangdong Provincial Key Laboratory of Proteomics, State Key Laboratory of Organ Failure Research, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Lei Li
- Guangdong Provincial Key Laboratory of Proteomics, State Key Laboratory of Organ Failure Research, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Sidan Luo
- Guangdong Provincial Key Laboratory of Proteomics, State Key Laboratory of Organ Failure Research, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Bingrong Hu
- Guangdong Provincial Key Laboratory of Proteomics, State Key Laboratory of Organ Failure Research, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Jia Xu
- Guangdong Provincial Key Laboratory of Proteomics, State Key Laboratory of Organ Failure Research, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Haihua Luo
- Guangdong Provincial Key Laboratory of Proteomics, State Key Laboratory of Organ Failure Research, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Shan Li
- Guangdong Provincial Key Laboratory of Proteomics, State Key Laboratory of Organ Failure Research, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Yong Jiang
- Guangdong Provincial Key Laboratory of Proteomics, State Key Laboratory of Organ Failure Research, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, Guangdong, China
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Du Y, Yan B. Ocular immune privilege and retinal pigment epithelial cells. J Leukoc Biol 2023; 113:288-304. [PMID: 36805720 DOI: 10.1093/jleuko/qiac016] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Indexed: 02/04/2023] Open
Abstract
The ocular tissue microenvironment is immune-privileged and uses multiple immunosuppressive mechanisms to prevent the induction of inflammation. The retinal pigment epithelium plays an essential role in ocular immune privilege. In addition to serving as a blood barrier separating the fenestrated choriocapillaris from the retina, the retinal pigment epithelium is a source of immunosuppressive cytokines and membrane-bound negative regulators that modulate the activity of immune cells within the retina. This article reviews the current understanding of how retinal pigment epithelium cells mediate immune regulation, focusing on the changes under pathologic conditions.
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Affiliation(s)
- Yuxiang Du
- Institute of Precision Medicine, Jining Medical University, No. 133, Hehua Road, Taibaihu New District, Jining, Shandong 272067, People's Republic of China
| | - Bo Yan
- Institute of Precision Medicine, Jining Medical University, No. 133, Hehua Road, Taibaihu New District, Jining, Shandong 272067, People's Republic of China
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Design and synthesis of hederagenin derivatives modulating STING/NF-κB signaling for the relief of acute liver injury in septic mice. Eur J Med Chem 2022; 245:114911. [DOI: 10.1016/j.ejmech.2022.114911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/23/2022] [Accepted: 11/03/2022] [Indexed: 11/10/2022]
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Yang Y, Chen J, Yi C, Yang F, Tang M, Li Z, Bai X. Assessment of serum interleukin-28 as a biomarker to predict mortality in traumatic patients with sepsis. Cytokine 2022; 157:155959. [PMID: 35816926 DOI: 10.1016/j.cyto.2022.155959] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 05/11/2022] [Accepted: 07/01/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND Serious trauma due to various factors is a major global public issue, and sepsis is a major cause of trauma-associated mortality. Timely diagnosis and suitable treatment of post-traumatic sepsis are crucial to improve the hospital outcome of traumatic patients. IL-28 is a newly discovered member of IFN-λ family with multiple functions in inflammatory response. To date, its role in the pathogenic mechanisms of post-traumatic sepsis still remains unknown. METHODS In total, 20 healthy controls, 55 traumatic patients without sepsis and 54 traumatic patients with sepsis were enrolled in this study. Serum IL-28A/B levels were investigated by ELISA. RESULTS IL-28A/B levels were significantly increased in traumatic patients compared to healthy volunteers. Moreover, septic trauma patients displayed a significant increase in IL-28A/B levels compared with non-septic patients. In septic patients, IL-28A/B were negatively correlated with IFN-γ, IL-5, IL-13 and IL-17, and positively associated with IL-10. Moreover, IL-28A (AUC: 0.821, 95 %CI: 0.693-0.949) and IL-28B (AUC: 0.811, 95 %CI: 0.691-0.931) were both beneficial to predict increased mortality risk in septic trauma patients, though there was no statistical difference in the predictive value between them. CONCLUSIONS Early serum levels of IL-28A/B were associated with the development of post-trauma sepsis and could be applied to assess the outcome of traumatic patients with sepsis. Thus, IL-28 may be a potential indicator for post-traumatic sepsis.
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Affiliation(s)
- Yang Yang
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiajun Chen
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology, Wuhan, China
| | - Chengla Yi
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology, Wuhan, China
| | - Fan Yang
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology, Wuhan, China
| | - Manli Tang
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhanfei Li
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiangjun Bai
- Trauma Center/Department of Emergency and Traumatic Surgery, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology, Wuhan, China.
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Kazakov AS, Sofin AD, Avkhacheva NV, Deryusheva EI, Rastrygina VA, Permyakova ME, Uversky VN, Permyakov EA, Permyakov SE. Interferon-β Activity Is Affected by S100B Protein. Int J Mol Sci 2022; 23:ijms23041997. [PMID: 35216109 PMCID: PMC8877046 DOI: 10.3390/ijms23041997] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 02/02/2022] [Accepted: 02/08/2022] [Indexed: 02/04/2023] Open
Abstract
Interferon-β (IFN-β) is a pleiotropic cytokine secreted in response to various pathological conditions and is clinically used for therapy of multiple sclerosis. Its application for treatment of cancer, infections and pulmonary diseases is limited by incomplete understanding of regulatory mechanisms of its functioning. Recently, we reported that IFN-β activity is affected by interactions with S100A1, S100A4, S100A6, and S100P proteins, which are members of the S100 protein family of multifunctional Ca2+-binding proteins possessing cytokine-like activities (Int J Mol Sci. 2020;21(24):9473). Here we show that IFN-β interacts with one more representative of the S100 protein family, the S100B protein, involved in numerous oncological and neurological diseases. The use of chemical crosslinking, intrinsic fluorescence, and surface plasmon resonance spectroscopy revealed IFN-β binding to Ca2+-loaded dimeric and monomeric forms of the S100B protein. Calcium depletion blocks the S100B–IFN-β interaction. S100B monomerization increases its affinity to IFN-β by 2.7 orders of magnitude (equilibrium dissociation constant of the complex reaches 47 pM). Crystal violet assay demonstrated that combined application of IFN-β and S100B (5–25 nM) eliminates their inhibitory effects on MCF-7 cell viability. Bioinformatics analysis showed that the direct modulation of IFN-β activity by the S100B protein described here could be relevant to progression of multiple oncological and neurological diseases.
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Affiliation(s)
- Alexey S. Kazakov
- Institute for Biological Instrumentation, Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Institutskaya Str., 7, Pushchino, 142290 Moscow, Russia; (A.S.K.); (A.D.S.); (N.V.A.); (E.I.D.); (V.A.R.); (M.E.P.); (E.A.P.)
| | - Alexander D. Sofin
- Institute for Biological Instrumentation, Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Institutskaya Str., 7, Pushchino, 142290 Moscow, Russia; (A.S.K.); (A.D.S.); (N.V.A.); (E.I.D.); (V.A.R.); (M.E.P.); (E.A.P.)
| | - Nadezhda V. Avkhacheva
- Institute for Biological Instrumentation, Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Institutskaya Str., 7, Pushchino, 142290 Moscow, Russia; (A.S.K.); (A.D.S.); (N.V.A.); (E.I.D.); (V.A.R.); (M.E.P.); (E.A.P.)
| | - Evgenia I. Deryusheva
- Institute for Biological Instrumentation, Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Institutskaya Str., 7, Pushchino, 142290 Moscow, Russia; (A.S.K.); (A.D.S.); (N.V.A.); (E.I.D.); (V.A.R.); (M.E.P.); (E.A.P.)
| | - Victoria A. Rastrygina
- Institute for Biological Instrumentation, Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Institutskaya Str., 7, Pushchino, 142290 Moscow, Russia; (A.S.K.); (A.D.S.); (N.V.A.); (E.I.D.); (V.A.R.); (M.E.P.); (E.A.P.)
| | - Maria E. Permyakova
- Institute for Biological Instrumentation, Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Institutskaya Str., 7, Pushchino, 142290 Moscow, Russia; (A.S.K.); (A.D.S.); (N.V.A.); (E.I.D.); (V.A.R.); (M.E.P.); (E.A.P.)
| | - Vladimir N. Uversky
- Department of Molecular Medicine, USF Health Byrd Alzheimer’s Research Institute, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
- Correspondence: (V.N.U.); (S.E.P.); Tel.: +7-(495)-143-7741 (S.E.P.); Fax: +7-(4967)-33-05-22 (S.E.P.)
| | - Eugene A. Permyakov
- Institute for Biological Instrumentation, Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Institutskaya Str., 7, Pushchino, 142290 Moscow, Russia; (A.S.K.); (A.D.S.); (N.V.A.); (E.I.D.); (V.A.R.); (M.E.P.); (E.A.P.)
| | - Sergei E. Permyakov
- Institute for Biological Instrumentation, Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Institutskaya Str., 7, Pushchino, 142290 Moscow, Russia; (A.S.K.); (A.D.S.); (N.V.A.); (E.I.D.); (V.A.R.); (M.E.P.); (E.A.P.)
- Correspondence: (V.N.U.); (S.E.P.); Tel.: +7-(495)-143-7741 (S.E.P.); Fax: +7-(4967)-33-05-22 (S.E.P.)
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10
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Zhang RX, Kang R, Tang DL. STING1 in sepsis: Mechanisms, functions, and implications. Chin J Traumatol 2022; 25:1-10. [PMID: 34334261 PMCID: PMC8787237 DOI: 10.1016/j.cjtee.2021.07.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 07/06/2021] [Accepted: 07/10/2021] [Indexed: 02/07/2023] Open
Abstract
Sepsis is a life-threatening clinical syndrome and one of the most challenging health problems in the world. Pathologically, sepsis and septic shock are caused by a dysregulated host immune response to infection, which can eventually lead to multiple organ failure and even death. As an adaptor transporter between the endoplasmic reticulum and Golgi apparatus, stimulator of interferon response cGAMP interactor 1 (STING1, also known as STING or TMEM173) has been found to play a vital role at the intersection of innate immunity, inflammation, autophagy, and cell death in response to invading microbial pathogens or endogenous host damage. There is ample evidence that impaired STING1, through its immune and non-immune functions, is involved in the pathological process of sepsis. In this review, we discuss the regulation and function of the STING1 pathway in sepsis and highlight it as a suitable drug target for the treatment of lethal infection.
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Affiliation(s)
- Ruo-Xi Zhang
- Department of Surgery, UT Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Rui Kang
- Department of Surgery, UT Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Dao-Lin Tang
- Department of Surgery, UT Southwestern Medical Center, Dallas, TX, 75390, USA.
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11
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Larsson L, Garaicoa-Pazmino C, Asa'ad F, Castilho RM. Understanding the role of endotoxin tolerance in chronic inflammatory conditions and periodontal disease. J Clin Periodontol 2021; 49:270-279. [PMID: 34970759 DOI: 10.1111/jcpe.13591] [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: 09/08/2021] [Revised: 12/17/2021] [Accepted: 12/23/2021] [Indexed: 12/14/2022]
Abstract
OBJECTIVE This review aims to present the current understanding of endotoxin tolerance (ET) in chronic inflammatory diseases and explores the potential connection with periodontitis. SUMMARY Subsequent exposure to lipopolysaccharides (LPS) triggers ET, a phenomenon regulated by different mechanisms and pathways, including toll-like receptors (TLRs), nuclear factor kappa-light-chain-enhancer of activated B cells (NFκB), apoptosis of immune cells, epigenetics, and microRNAs (miRNAs). These mechanisms interconnect ET with chronic inflammatory diseases that include periodontitis. While the direct correlation between ET and periodontal destruction has not been fully elucidated, emerging reports point towards the potential tolerization of human periodontal ligament cells (hPDLCs) and gingival tissues with a significant reduction of TLR levels. CONCLUSIONS There is a potential link between ET and periodontal diseases. Future studies should explore the crucial role of ET in the pathogenesis of periodontal diseases as evidence of a tolerized oral mucosa may represent an intrinsic mechanism capable of regulating the oral immune response. A clear understanding of this host immune regulatory mechanism might lead to effective and more predictable therapeutic strategies to treat chronic inflammatory diseases and periodontitis. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Lena Larsson
- Department of Periodontology Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden
| | - Carlos Garaicoa-Pazmino
- Department of Periodontics, University of Iowa, College of Dentistry and Dental Clinics, Iowa City, IA, USA.,School of Dentistry, Espíritu Santo University, Samborondon, Ecuador
| | - Farah Asa'ad
- Department of Biomaterials, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden.,Department of Oral Biochemistry, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden
| | - Rogerio M Castilho
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI, USA.,Laboratory of Epithelial Biology, University of Michigan School of Dentistry, Ann Arbor, MI, USA
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12
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Hortová-Kohoutková M, De Zuani M, Lázničková P, Bendíčková K, Mrkva O, Andrejčinová I, Mýtniková A, Polanský O, Kočí K, Tomášková V, Šrámek V, Helán M, Frič J. Polymorphonuclear Cells Show Features of Dysfunctional Activation During Fatal Sepsis. Front Immunol 2021; 12:741484. [PMID: 34966382 PMCID: PMC8710474 DOI: 10.3389/fimmu.2021.741484] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 11/24/2021] [Indexed: 12/29/2022] Open
Abstract
Sepsis and septic shock remain leading causes of morbidity and mortality for patients in the intensive care unit. During the early phase, immune cells produce various cytokines leading to prompt activation of the immune system. Polymorphonuclear leukocytes (PMNs) respond to different signals producing inflammatory factors and executing their antimicrobial mechanisms, resulting in the engulfment and elimination of invading pathogens. However, excessive activation caused by various inflammatory signals produced during sepsis progression can lead to the alteration of PMN signaling and subsequent defects in their functionality. Here, we analyzed samples from 34 patients in septic shock, focusing on PMNs gene expression and proteome changes associated with septic shock. We revealed that, compared to those patients who survived longer than five days, PMNs from patients who had fulminant sepsis were characterized by a dysfunctional hyper-activation, show altered metabolism, and recent exit from the cell cycle and signs of cellular lifespan. We believe that this multi-omics approach, although limited, pinpoints the alterations in PMNs' functionality, which may be rescued by targeted treatments.
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Affiliation(s)
| | - Marco De Zuani
- International Clinical Research Center, St. Anne’s University Hospital, Brno, Czechia
| | - Petra Lázničková
- International Clinical Research Center, St. Anne’s University Hospital, Brno, Czechia
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Kamila Bendíčková
- International Clinical Research Center, St. Anne’s University Hospital, Brno, Czechia
| | - Ondřej Mrkva
- International Clinical Research Center, St. Anne’s University Hospital, Brno, Czechia
| | - Ivana Andrejčinová
- International Clinical Research Center, St. Anne’s University Hospital, Brno, Czechia
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Alexandra Mýtniková
- International Clinical Research Center, St. Anne’s University Hospital, Brno, Czechia
| | - Ondřej Polanský
- International Clinical Research Center, St. Anne’s University Hospital, Brno, Czechia
| | - Kamila Kočí
- International Clinical Research Center, St. Anne’s University Hospital, Brno, Czechia
| | - Veronika Tomášková
- Department of Anesthesiology and Intensive Care, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Vladimír Šrámek
- Department of Anesthesiology and Intensive Care, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Martin Helán
- International Clinical Research Center, St. Anne’s University Hospital, Brno, Czechia
- Department of Anesthesiology and Intensive Care, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Jan Frič
- International Clinical Research Center, St. Anne’s University Hospital, Brno, Czechia
- Department of Modern Immunotherapy, Institute of Hematology and Blood Transfusion, Prague, Czechia
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13
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Dynamic, but Not Necessarily Disordered, Human-Virus Interactions Mediated through SLiMs in Viral Proteins. Viruses 2021; 13:v13122369. [PMID: 34960638 PMCID: PMC8703344 DOI: 10.3390/v13122369] [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: 10/31/2021] [Revised: 11/15/2021] [Accepted: 11/16/2021] [Indexed: 12/13/2022] Open
Abstract
Most viruses have small genomes that encode proteins needed to perform essential enzymatic functions. Across virus families, primary enzyme functions are under functional constraint; however, secondary functions mediated by exposed protein surfaces that promote interactions with the host proteins may be less constrained. Viruses often form transient interactions with host proteins through conformationally flexible interfaces. Exposed flexible amino acid residues are known to evolve rapidly suggesting that secondary functions may generate diverse interaction potentials between viruses within the same viral family. One mechanism of interaction is viral mimicry through short linear motifs (SLiMs) that act as functional signatures in host proteins. Viral SLiMs display specific patterns of adjacent amino acids that resemble their host SLiMs and may occur by chance numerous times in viral proteins due to mutational and selective processes. Through mimicry of SLiMs in the host cell proteome, viruses can interfere with the protein interaction network of the host and utilize the host-cell machinery to their benefit. The overlap between rapidly evolving protein regions and the location of functionally critical SLiMs suggest that these motifs and their functional potential may be rapidly rewired causing variation in pathogenicity, infectivity, and virulence of related viruses. The following review provides an overview of known viral SLiMs with select examples of their role in the life cycle of a virus, and a discussion of the structural properties of experimentally validated SLiMs highlighting that a large portion of known viral SLiMs are devoid of predicted intrinsic disorder based on the viral SLiMs from the ELM database.
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14
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Tan C, Xu F, Xie Q, Li F. Deficiency of cGAS signaling protects against sepsis-associated encephalopathy. Biochem Biophys Res Commun 2021; 577:38-44. [PMID: 34507063 DOI: 10.1016/j.bbrc.2021.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/11/2021] [Accepted: 09/02/2021] [Indexed: 11/30/2022]
Abstract
Sepsis is a life-threatening inflammatory syndrome secondary to infection. Thanks to the advances of antibiotics and life-supporting techniques, the mortality of sepsis has been decreasing in recent decades. Nevertheless, sepsis-associated encephalopathy (SAE) is still common in septic patients, which promotes the mortality of septic patients and results in cognitive dysfunction in survivors. Full understanding and effective medicine in the treatment of SAE is currently scant. Here, we revealed a novel role of cGAS signaling in the pathogenesis of SAE. Deficiency of cGas significantly restored cognitive impairment in sepsis mice model. The restoration may attribute to the recovery of neo-neuron decline that associated with the decrease of activated microglia and astrocytes in the hippocampus of cGas-deficient mice. In addition, type I interferon (IFN) signaling, a downstream of cGAS pathway, was boosted in the hippocampus of septic mice, which was dramatically attenuated by deleting cGas. Moreover, administration of recombinant IFNβ markedly reversed the protection of ablation of cGas in the cognitive impairment in sepsis. Collectively, cGAS promotes the pathogenesis of SAE by up-regulating type I IFN signaling. Blocking cGAS may be a promising strategy for preventing encephalopathy in sepsis.
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Affiliation(s)
- Changming Tan
- Department of Cardiovascular Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410000, PR China
| | - Feng Xu
- Department of Endocrinology and Metabolism, The Second Xiangya Hospital, Central South University, Changsha, 410000, PR China
| | - Qiong Xie
- Department of Cardiology, People's Hospital of Hunan Province, Changsha, 410000, PR China
| | - Feng Li
- Department of Cardiovascular Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410000, PR China.
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15
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Cao S, Schnelzer A, Hannemann N, Schett G, Soulat D, Bozec A. The Transcription Factor FRA-1/AP-1 Controls Lipocalin-2 Expression and Inflammation in Sepsis Model. Front Immunol 2021; 12:701675. [PMID: 34712224 PMCID: PMC8546226 DOI: 10.3389/fimmu.2021.701675] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 09/24/2021] [Indexed: 12/29/2022] Open
Abstract
Sepsis is a life-threatening condition characterized by excessive inflammation in its early phase. This is followed by an aberrant resolution phase associated to a prolonged period of immune suppression that can ultimately lead to multiple organ dysfunctions. This immunosuppression can be mediated by the functional reprogramming of gene transcription in monocytes/macrophages in response to prolonged lipopolysaccharide (LPS) exposure. Surprisingly, there is no report on the role of AP-1 transcription factors in this reprogramming process. Herein, we used the endotoxin tolerance model on murine bone marrow-derived macrophages in which tolerant cells stimulated twice with LPS were compared to naïve cells stimulated once. Out of all AP-1 transcription factors tested, Fosl1 gene stood out because of its unique regulation in tolerized cells. Moreover, we could correlate FRA-1 expression to the expression of an essential anti-inflammatory molecule involved in sepsis response, Lipocalin 2 aka NGAL. Identical results were obtained in human PBMC following the endotoxin tolerance model. When using FRA-1 deficient macrophages, we could confirm that FRA-1 regulates NGAL expression during the tolerant state. Interestingly, ChIP-seq and ChIP-qPCR revealed the binding of FRA-1 on Lcn2 promoter after LPS stimulation in these cells. Finally, we used an in vivo septic model of consecutive injection of LPS, in which the second stimulation is performed before the resolution of inflammation, in wild type and FRA-1 deficient mice. NGAL secretion was elevated in lung, spleen and serum of wild type tolerant mice, whereas it was significantly lower in tolerant FRA-1 deficient mice. Moreover, an increased inflammatory state likely dependent of the low level of NGAL was observed in these FRA-1 deficient mice. This was characterized by an increase of neutrophil infiltration in lung and an increase of apoptotic follicular cells in spleen. This suggests that FRA-1 expression supports resolution of inflammation in this model. Collectively, our data indicate that FRA-1 is involved in myeloid cell tolerance responses by mediating the functional reprogramming of Lcn2 transcription in response to prolonged LPS exposure. In conclusion, FRA-1 may have a protective role in the tolerance response of sepsis through the regulation of NGAL, leading to resolution of inflammation.
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Affiliation(s)
- Shan Cao
- Department of Internal Medicine 3, Rheumatology and Immunology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Anne Schnelzer
- Department of Internal Medicine 3, Rheumatology and Immunology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Nicole Hannemann
- Department of Internal Medicine 3, Rheumatology and Immunology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany.,Institute of Regenerative Medicine and Biotherapies (IRMB), University of Montpellier, INSERM U1183, Montpellier, France
| | - Georg Schett
- Department of Internal Medicine 3, Rheumatology and Immunology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Didier Soulat
- Mikrobiologisches Institut - Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Aline Bozec
- Department of Internal Medicine 3, Rheumatology and Immunology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
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16
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Chen HH, Chen HM, Chen YM, Chen YH, Lin CH, Chao WC. Impact of systemic lupus erythematosus on the 5-year survival of critically ill septic patients. Arthritis Res Ther 2021; 23:264. [PMID: 34674749 PMCID: PMC8528659 DOI: 10.1186/s13075-021-02649-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 10/12/2021] [Indexed: 11/10/2022] Open
Abstract
Background Infectious disease is an increasing threat to patients with systemic lupus erythematosus (SLE); however, the long-term outcome in critically ill septic patients with SLE remains unclear, and we aimed to address the impact of SLE on 5-year survival in critically ill septic patients. Methods We used the 2003–2017 nationwide data with 825,556 patients with sepsis in Taiwan. We identified lupus cases with sepsis that required admission to the intensive care unit and mechanical ventilation and selected controls matched (1:4) for age, sex, and index-year. Conditional logistic regression analysis was used to determine risk factors for mortality risk and shown as odds ratios (HRs) with 95% confidence intervals (CIs). Results A total of 513 SLE-sepsis patients and 2052 matched non-SLE septic individuals were enrolled. The mortality rate was higher in the SLE group (38.5 per 100,000 person-year) than that in the non-SLE group (13.7 per 100,000 person-year), with an IRR of 2.8 (95% CI, 2.5–3.2). We found that SLE was independently associated with a high mortality rate after adjusting relevant variables (HR 1.47, 95% CI 1.27–1.77). In addition to SLE, a higher age (HR 1.02, 95% CI 1.02–1.02), more comorbidities, and receiving prednisolone equivalent dose higher than 5 mg/day (HR 1.55, 95% CI 1.27–1.90), methotrexate (HR 2.19, 95% CI 1.61–2.99), and immunosuppressants (HR 1.45, 95% CI 1.22–1.74) were also independent risks for mortality. Conclusions We identified that SLE affects the long-term mortality in critically ill septic patients, and more studies are warranted for the underlying mechanism. Supplementary Information The online version contains supplementary material available at 10.1186/s13075-021-02649-x.
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Affiliation(s)
- Hsin-Hua Chen
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan.,Division of General Internal Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan.,Institute of Biomedical Science and Rong Hsing Research Centre for Translational Medicine, Chung Hsing University, Taichung, Taiwan.,School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Department of Industrial Engineering and Enterprise Information, Tunghai University, Taichung, Taiwan.,Big Data Center, Chung Hsing University, Taichung, Taiwan
| | - Hsian-Min Chen
- Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan.,Department of Computer Science & Information Engineering, National United University, Miaoli, Taiwan.,Department of Biomedical Engineering, HungKuang University, Taichung, Taiwan.,Center for Quantitative Imaging in Medicine (CQUIM), Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Yi-Ming Chen
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan.,Institute of Biomedical Science and Rong Hsing Research Centre for Translational Medicine, Chung Hsing University, Taichung, Taiwan.,School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Yi-Hsing Chen
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan.,School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Ching-Heng Lin
- Department of Industrial Engineering and Enterprise Information, Tunghai University, Taichung, Taiwan.,Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan.,Department of Healthcare Management, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan.,Department of Public Health, College of Medicine, Fu Jen Catholic University, New Taipei, Taiwan
| | - Wen-Cheng Chao
- Big Data Center, Chung Hsing University, Taichung, Taiwan. .,Department of Critical Care Medicine, Taichung Veterans General Hospital, 40705 Taiwan Avenue, Xitun District, No. 1650, Section 4, Taichung, Taiwan. .,Department of Computer Science, Tunghai University, Taichung, Taiwan. .,Department of Automatic Control Engineering, Feng Chia University, Taichung, Taiwan.
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17
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Chuah JJM, Hertzog PJ, Campbell NK. Immunoregulation by type I interferons in the peritoneal cavity. J Leukoc Biol 2021; 111:337-353. [PMID: 34612523 DOI: 10.1002/jlb.3mr0821-147r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
The peritoneal cavity, a fluid-containing potential space surrounding the abdominal and pelvic organs, is home to a rich network of immune cells that maintain tissue homeostasis and provide protection against infection. However, under pathological conditions such as peritonitis, endometriosis, and peritoneal carcinomatosis, the peritoneal immune system can become dysregulated, resulting in nonresolving inflammation and disease progression. An enhanced understanding of the factors that regulate peritoneal immune cells under both homeostatic conditions and in disease contexts is therefore required to identify new treatment strategies for these often life-limiting peritoneal pathologies. Type I interferons (T1IFNs) are a family of cytokines with broad immunoregulatory functions, which provide defense against viruses, bacteria, and cancer. There have been numerous reports of immunoregulation by T1IFNs within the peritoneal cavity, which can contribute to both the resolution or propagation of peritoneal disease states, depending on the specifics of the disease setting and local environment. In this review, we provide an overview of the major immune cell populations that reside in the peritoneal cavity (or infiltrate it under inflammatory conditions) and highlight their contribution to the initiation, progression, or resolution of peritoneal diseases. Additionally, we will discuss the role of T1IFNs in the regulation of peritoneal immune cells, and summarize the results of laboratory studies and clinical trials which have investigated T1IFNs in peritonitis/sepsis, endometriosis, and peritoneal carcinomatosis.
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Affiliation(s)
- Jasmine J M Chuah
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Victoria, Australia
| | - Paul J Hertzog
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Victoria, Australia.,Department of Molecular and Translational Sciences, Monash University, Clayton, Victoria, Australia
| | - Nicole K Campbell
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Victoria, Australia.,Department of Molecular and Translational Sciences, Monash University, Clayton, Victoria, Australia
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18
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Abstract
BACKGROUND Circulating complement C3 fragments released during septic shock might contribute to the development of complications such as profound hypotension and disseminated intravascular coagulation. The role of C3 in the course of septic shock varies in the literature, possibly because circulating C3 exists in different forms indistinguishable via traditional ELISA-based methods. We sought to test the relationship between C3 forms, measured by Western blotting with its associated protein size differentiation feature, and clinical outcomes. METHODS Secondary analysis of two prospective cohorts of patients with septic shock: a discovery cohort of 24 patents and a validation cohort of 181 patients. C3 levels were measured by Western blotting in both cohorts using blood obtained at enrollment. Differences between survivors and non-survivors were compared, and the independent prognostic values of C3 forms were assessed. RESULTS In both cohorts there were significantly lower levels of the C3-alpha chain in non-survivors than in survivors, and persisted after controlling for sequential organ failure assessment score. Area under the receiver operating characteristics to predict survival was 0.65 (95% confidence interval: 0.56-0.75). At a best cutoff value (Youden) of 970.6 μg/mL, the test demonstrated a sensitivity of 68.5% and specificity of 61.5%. At this cutoff point, Kaplan-Meier survival analysis showed that patients with lower levels of C3-alpha chain had significantly lower survival than those with higher levels (P < 0.001). CONCLUSION Circulating C3-alpha chain levels is a significant independent predictor of survival in septic shock patients.
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19
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Wang Z, Liu M, Ye D, Ye J, Wang M, Liu J, Xu Y, Zhang J, Zhao M, Feng Y, Xu S, Pan W, Luo Z, Li D, Wan J. Il12a Deletion Aggravates Sepsis-Induced Cardiac Dysfunction by Regulating Macrophage Polarization. Front Pharmacol 2021; 12:632912. [PMID: 34276358 PMCID: PMC8284189 DOI: 10.3389/fphar.2021.632912] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 03/17/2021] [Indexed: 12/12/2022] Open
Abstract
Cardiac dysfunction is a well-recognized complication of sepsis and is associated with the outcome and prognosis of septic patients. Evidence suggests that Il12a participates in the regulation of various cardiovascular diseases, including heart failure, hypertension and acute myocardial infarction. However, the effects of Il12a in sepsis-induced cardiac dysfunction remain unknown. In our study, lipopolysaccharide (LPS) and cecal ligation and puncture (CLP) model were used to mimic sepsis, and cardiac Il12a expression was assessed. In addition, Il12a knockout mice were used to detect the role of Il12a in sepsis-related cardiac dysfunction. We observed for the first time that Il12a expression is upregulated in mice after LPS treatment and macrophages were the main sources of Il12a. In addition, our findings demonstrated that Il12a deletion aggravates LPS-induced cardiac dysfunction and injury, as evidenced by the increased serum and cardiac levels of lactate dehydrogenase (LDH) and cardiac creatine kinase-myocardial band (CK-MB). Moreover, Il12a deletion enhances LPS-induced macrophage accumulation and drives macrophages toward the M1 phenotype in LPS-treated mice. Il12a deletion also downregulated the activity of AMP-activated protein kinase (AMPK) but increased the phosphorylation levels of p65 (p-p65) and NF-κB inhibitor alpha (p-IκBα). In addition, Il12a deletion aggravates CLP-induced cardiac dysfunction and injury. Treatment with the AMPK activator AICAR abolishes the deterioration effect of Il12a deletion on LPS-induced cardiac dysfunction. In conclusion, Il12a deletion aggravated LPS-induced cardiac dysfunction and injury by exacerbating the imbalance of M1 and M2 macrophages. Our data provide evidence that Il12a may represent an attractive target for sepsis-induced cardiac dysfunction.
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Affiliation(s)
- Zhen Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Menglin Liu
- Department of Emergency, Renmin Hospital of Wuhan University, Wuhan, China
| | - Di Ye
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Jing Ye
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Menglong Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Jianfang Liu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Yao Xu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Jishou Zhang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Mengmeng Zhao
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Yongqi Feng
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Shuwan Xu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Wei Pan
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Zhen Luo
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Dan Li
- Department of Pediatrics, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Jun Wan
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
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20
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Lei Y, Guerra Martinez C, Torres-Odio S, Bell SL, Birdwell CE, Bryant JD, Tong CW, Watson RO, West LC, West AP. Elevated type I interferon responses potentiate metabolic dysfunction, inflammation, and accelerated aging in mtDNA mutator mice. SCIENCE ADVANCES 2021; 7:eabe7548. [PMID: 34039599 PMCID: PMC8153723 DOI: 10.1126/sciadv.abe7548] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 04/08/2021] [Indexed: 05/30/2023]
Abstract
Mitochondrial dysfunction is a key driver of inflammatory responses in human disease. However, it remains unclear whether alterations in mitochondria-innate immune cross-talk contribute to the pathobiology of mitochondrial disorders and aging. Using the polymerase gamma (POLG) mutator model of mitochondrial DNA instability, we report that aberrant activation of the type I interferon (IFN-I) innate immune axis potentiates immunometabolic dysfunction, reduces health span, and accelerates aging in mutator mice. Mechanistically, elevated IFN-I signaling suppresses activation of nuclear factor erythroid 2-related factor 2 (NRF2), which increases oxidative stress, enhances proinflammatory cytokine responses, and accelerates metabolic dysfunction. Ablation of IFN-I signaling attenuates hyperinflammatory phenotypes by restoring NRF2 activity and reducing aerobic glycolysis, which combine to lessen cardiovascular and myeloid dysfunction in aged mutator mice. These findings further advance our knowledge of how mitochondrial dysfunction shapes innate immune responses and provide a framework for understanding mitochondria-driven immunopathology in POLG-related disorders and aging.
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Affiliation(s)
- Yuanjiu Lei
- Department of Microbial Pathogenesis and Immunology, College of Medicine, Texas A&M University, Bryan, TX, USA
| | - Camila Guerra Martinez
- Department of Microbial Pathogenesis and Immunology, College of Medicine, Texas A&M University, Bryan, TX, USA
| | - Sylvia Torres-Odio
- Department of Microbial Pathogenesis and Immunology, College of Medicine, Texas A&M University, Bryan, TX, USA
| | - Samantha L Bell
- Department of Microbial Pathogenesis and Immunology, College of Medicine, Texas A&M University, Bryan, TX, USA
| | - Christine E Birdwell
- Department of Microbial Pathogenesis and Immunology, College of Medicine, Texas A&M University, Bryan, TX, USA
| | - Joshua D Bryant
- Department of Microbial Pathogenesis and Immunology, College of Medicine, Texas A&M University, Bryan, TX, USA
| | - Carl W Tong
- Department of Medical Physiology, College of Medicine, Texas A&M University, Bryan, TX, USA
| | - Robert O Watson
- Department of Microbial Pathogenesis and Immunology, College of Medicine, Texas A&M University, Bryan, TX, USA
| | - Laura Ciaccia West
- Department of Microbial Pathogenesis and Immunology, College of Medicine, Texas A&M University, Bryan, TX, USA
| | - A Phillip West
- Department of Microbial Pathogenesis and Immunology, College of Medicine, Texas A&M University, Bryan, TX, USA.
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21
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He DD, Zhang XK, Zhu XY, Huang FF, Wang Z, Tu JC. Network pharmacology and RNA-sequencing reveal the molecular mechanism of Xuebijing injection on COVID-19-induced cardiac dysfunction. Comput Biol Med 2021; 131:104293. [PMID: 33662681 PMCID: PMC7899014 DOI: 10.1016/j.compbiomed.2021.104293] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 02/17/2021] [Accepted: 02/17/2021] [Indexed: 01/08/2023]
Abstract
BACKGROUND Coronavirus disease 2019 (COVID-19) is an emerging infectious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Up to 20%-30% of patients hospitalized with COVID-19 have evidence of cardiac dysfunction. Xuebijing injection is a compound injection containing five traditional Chinese medicine ingredients, which can protect cells from SARS-CoV-2-induced cell death and improve cardiac function. However, the specific protective mechanism of Xuebijing injection on COVID-19-induced cardiac dysfunction remains unclear. METHODS The therapeutic effect of Xuebijing injection on COVID-19 was validated by the TCM Anti COVID-19 (TCMATCOV) platform. RNA-sequencing (RNA-seq) data from GSE150392 was used to find differentially expressed genes (DEGs) from human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) infected with SARS-CoV-2. Data from GSE151879 was used to verify the expression of Angiotensin I Converting Enzyme 2 (ACE2) and central hub genes in both human embryonic-stem-cell-derived cardiomyocytes (hESC-CMs) and adult human CMs with SARS-CoV-2 infection. RESULTS A total of 97 proteins were identified as the therapeutic targets of Xuebijing injection for COVID-19. There were 22 DEGs in SARS-CoV-2 infected hiPSC-CMs overlapped with the 97 therapeutic targets, which might be the therapeutic targets of Xuebijing injection on COVID-19-induced cardiac dysfunction. Based on the bioinformatics analysis, 7 genes (CCL2, CXCL8, FOS, IFNB1, IL-1A, IL-1B, SERPINE1) were identified as central hub genes and enriched in pathways including cytokines, inflammation, cell senescence and oxidative stress. ACE2, the receptor of SARS-CoV-2, and the 7 central hub genes were differentially expressed in at least two kinds of SARS-CoV-2 infected CMs. Besides, FOS and quercetin exhibited the tightest binding by molecular docking analysis. CONCLUSION Our study indicated the underlying protective effect of Xuebijing injection on COVID-19, especially on COVID19-induced cardiac dysfunction, which provided the theoretical basis for exploring the potential protective mechanism of Xuebijing injection on COVID19-induced cardiac dysfunction.
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Affiliation(s)
- Ding-Dong He
- Department & Program of Clinical Laboratory Medicine, Center for Gene Diagnosis, Zhongnan Hospital of Wuhan University, Wuhan, 430071, PR China
| | - Xiao-Kang Zhang
- Department & Program of Clinical Laboratory Medicine, Center for Gene Diagnosis, Zhongnan Hospital of Wuhan University, Wuhan, 430071, PR China
| | - Xin-Yu Zhu
- Department & Program of Clinical Laboratory Medicine, Center for Gene Diagnosis, Zhongnan Hospital of Wuhan University, Wuhan, 430071, PR China
| | - Fang-Fang Huang
- Department & Program of Clinical Laboratory Medicine, Center for Gene Diagnosis, Zhongnan Hospital of Wuhan University, Wuhan, 430071, PR China
| | - Zi Wang
- Department & Program of Clinical Laboratory Medicine, Center for Gene Diagnosis, Zhongnan Hospital of Wuhan University, Wuhan, 430071, PR China
| | - Jian-Cheng Tu
- Department & Program of Clinical Laboratory Medicine, Center for Gene Diagnosis, Zhongnan Hospital of Wuhan University, Wuhan, 430071, PR China.
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22
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Trained Innate Immunity by Repeated Low-Dose Lipopolysaccharide Injections Displays Long-Term Neuroprotective Effects. Mediators Inflamm 2020; 2020:8191079. [PMID: 33061831 PMCID: PMC7547335 DOI: 10.1155/2020/8191079] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 09/17/2020] [Accepted: 09/21/2020] [Indexed: 12/20/2022] Open
Abstract
Disrupted immune response is an important feature of many neurodegenerative conditions, including sepsis-associated cognitive impairment. Accumulating evidence has demonstrated that immune memory occurs in microglia, which has a significant impact on pathological hallmarks of neurological diseases. However, it remains unclear whether immune memory can cause subsequent alterations in the brain immune response and affect neurobehavioral outcomes in sepsis survivors. In the present study, mice received daily intraperitoneal injection of low-dose lipopolysaccharide (LPS, 0.1 mg/kg) for three consecutive days to induce immune memory (immune tolerance) and then were subjected to sham operation or cecal ligation and puncture (CLP) 9 months later, followed by a battery of neurobehavioral and biochemical studies. Here, we showed that repeated low-dose LPS injection-induced immune memory protected mice from sepsis-induced cognitive and affective impairments, which were accompanied by significantly decreased brain proinflammatory cytokines and immune response. In conclusion, our study suggests that modulation of brain immune responses by repeated LPS injections confers neuroprotective effects by preventing overactivated immune response in response to subsequent septic insult.
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23
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Binnie A, Walsh CJ, Hu P, Dwivedi DJ, Fox-Robichaud A, Liaw PC, Tsang JLY, Batt J, Carrasqueiro G, Gupta S, Marshall JC, Castelo-Branco P, Dos Santos CC. Epigenetic Profiling in Severe Sepsis: A Pilot Study of DNA Methylation Profiles in Critical Illness. Crit Care Med 2020; 48:142-150. [PMID: 31939781 DOI: 10.1097/ccm.0000000000004097] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVES Epigenetic alterations are an important regulator of gene expression in health and disease; however, epigenetic data in sepsis are lacking. To demonstrate proof of concept and estimate effect size, we performed the first epigenome-wide methylation analysis of whole blood DNA samples from a cohort of septic and nonseptic critically ill patients. DESIGN A nested case-control study using genomic DNA isolated from whole blood from septic (n = 66) and nonseptic (n = 68) critically ill patients on "Day 1" of ICU admission. Methylation patterns were identified using Illumina 450K arrays with percent methylation expressed as β values. After quality control, 134 participants and 414,818 autosomal cytosine-phosphate-guanine sites were used for epigenome-wide methylation analyses. SETTING Tertiary care hospitals. SUBJECTS Critically ill septic and nonseptic patients. INTERVENTIONS Observational study. MEASUREMENTS AND MAIN RESULTS A total of 668 differentially methylated regions corresponding to 443 genes were identified. Known sepsis-associated genes included complement component 3; angiopoietin 2; myeloperoxidase; lactoperoxidase; major histocompatibility complex, class I, A; major histocompatibility complex, class II, isotype DR β I; major histocompatibility complex, class I, C; and major histocompatibility complex, class II, isotype DQ β I. When compared with whole blood gene expression data from seven external datasets containing septic and nonseptic patients, 81% of the differentially methylated region-associated genes were differentially expressed in one or more datasets and 31% in three or more datasets. Functional analysis showed enrichment for antigen processing and presentation, methyltransferase activity, cell adhesion, and cell junctions. Analysis by weighted gene coexpression network analysis revealed DNA comethylation modules that were associated with clinical traits including severity of illness, need for vasopressors, and length of stay. CONCLUSIONS DNA methylation marks may provide important causal and potentially biomarker information in critically ill patients with sepsis.
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Affiliation(s)
- Alexandra Binnie
- Department of Critical Care, William Osler Health System, Brampton, ON, Canada
| | - Christopher J Walsh
- Keenan Research Centre for Biomedical Science, St Michael's Hospital, Toronto, ON, Canada
- Institute of Medical Sciences and Department of Medicine, University of Toronto, Toronto, ON, Canada
| | - Pingzhao Hu
- Department of Biochemistry and Medical Genetics, University of Manitoba, Winnipeg, MB, Canada
| | - Dhruva J Dwivedi
- Thrombosis and Atherosclerosis Research Institute, McMaster University, Hamilton, ON, Canada
| | - Alison Fox-Robichaud
- Thrombosis and Atherosclerosis Research Institute, McMaster University, Hamilton, ON, Canada
- Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Patricia C Liaw
- Thrombosis and Atherosclerosis Research Institute, McMaster University, Hamilton, ON, Canada
- Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Jennifer L Y Tsang
- Department of Medicine, McMaster University, Hamilton, ON, Canada
- Niagara Health, St. Catharines, ON, Canada
| | - Jane Batt
- Keenan Research Centre for Biomedical Science, St Michael's Hospital, Toronto, ON, Canada
- Institute of Medical Sciences and Department of Medicine, University of Toronto, Toronto, ON, Canada
| | - Gabriela Carrasqueiro
- Centre for Biomedical Research, University of Algarve, Faro, Portugal
- Algarve Biomedical Center, Faro, Portugal
| | - Sahil Gupta
- Keenan Research Centre for Biomedical Science, St Michael's Hospital, Toronto, ON, Canada
- Institute of Medical Sciences and Department of Medicine, University of Toronto, Toronto, ON, Canada
| | - John C Marshall
- Keenan Research Centre for Biomedical Science, St Michael's Hospital, Toronto, ON, Canada
- Institute of Medical Sciences and Department of Medicine, University of Toronto, Toronto, ON, Canada
| | - Pedro Castelo-Branco
- Centre for Biomedical Research, University of Algarve, Faro, Portugal
- Algarve Biomedical Center, Faro, Portugal
- Regenerative Medicine Program, Department of Biomedical Sciences and Medicine, University of Algarve, Faro, Portugal
| | - Claudia C Dos Santos
- Keenan Research Centre for Biomedical Science, St Michael's Hospital, Toronto, ON, Canada
- Institute of Medical Sciences and Department of Medicine, University of Toronto, Toronto, ON, Canada
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24
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Le KTT, Chu X, Jaeger M, Plantinga JA, Matzaraki V, Withoff S, Joosten LAB, Netea MG, Wijmenga C, Li Y, Moser J, Kumar V. Leukocyte-Released Mediators in Response to Both Bacterial and Fungal Infections Trigger IFN Pathways, Independent of IL-1 and TNF-α, in Endothelial Cells. Front Immunol 2019; 10:2508. [PMID: 31708927 PMCID: PMC6824321 DOI: 10.3389/fimmu.2019.02508] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Accepted: 10/07/2019] [Indexed: 12/14/2022] Open
Abstract
In sepsis, dysregulated immune responses to infections cause damage to the host. Previous studies have attempted to capture pathogen-induced leukocyte responses. However, the impact of mediators released after pathogen-leukocyte interaction on endothelial cells, and how endothelial cell responses vary depending on the pathogen-type is lacking. Here, we comprehensively characterized the transcriptomic responses of human leukocytes and endothelial cells to Gram negative-bacteria, Gram positive-bacteria, and fungi. We showed that whole pathogen lysates induced strong activation of leukocytes but not endothelial cells. Interestingly, the common response of leukocytes to various pathogens converges on endothelial activation. By exposing endothelial cells to leukocyte-released mediators, we observed a strong activation of endothelial cells at both transcription and protein levels. By adding IL-1RA and TNF-α antibody in leukocyte-released mediators before exposing to endothelial cells, we identified specific roles for IL-1 and TNF-α in driving the most, but not all, endothelial activation. We also showed for the first time, activation of interferon response by endothelial cells in response to leukocyte-released mediators, independently from IL-1 and TNF-α pathways. Our study therefore, not only provides pathogen-dependent transcriptional changes in leukocytes and endothelial cells during infections, but also reveals a role for IFN, together with IL1 and TNFα signaling, in mediating leukocyte-endothelial interaction in infections.
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Affiliation(s)
- Kieu T T Le
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Xiaojing Chu
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Martin Jaeger
- Department of Internal Medicine and Radboud Centre for Infectious Diseases (RCI), Radboud University Medical Center, Nijmegen, Netherlands
| | - Josée A Plantinga
- Department of Pathology and Medical Biology, Medical Biology Section, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Vasiliki Matzaraki
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Sebo Withoff
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Leo A B Joosten
- Department of Internal Medicine and Radboud Centre for Infectious Diseases (RCI), Radboud University Medical Center, Nijmegen, Netherlands
| | - Mihai G Netea
- Department of Internal Medicine and Radboud Centre for Infectious Diseases (RCI), Radboud University Medical Center, Nijmegen, Netherlands
| | - Cisca Wijmenga
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, Netherlands.,Department of Immunology, K.G. Jebsen Coeliac Disease Research Centre, University of Oslo, Oslo, Norway
| | - Yang Li
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Jill Moser
- Department of Pathology and Medical Biology, Medical Biology Section, University Medical Center Groningen, University of Groningen, Groningen, Netherlands.,Department of Critical Care, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Vinod Kumar
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, Netherlands.,Department of Internal Medicine and Radboud Centre for Infectious Diseases (RCI), Radboud University Medical Center, Nijmegen, Netherlands
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25
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Cirulis MM, Beesley SJ, Wilson EL, Stubben C, Olsen TD, Hirshberg EL, Smith LM, Lanspa MJ, Abraham TP, Grissom CK, Rondina MT, Brown SM. The peripheral blood transcriptome in septic cardiomyopathy: an observational, pilot study. Intensive Care Med Exp 2019; 7:57. [PMID: 31650252 PMCID: PMC6813402 DOI: 10.1186/s40635-019-0271-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 09/24/2019] [Indexed: 01/25/2023] Open
Abstract
Background Septic cardiomyopathy (SCM) is common in sepsis and associated with increased morbidity and mortality. Left ventricular global longitudinal strain (LV GLS), measured by speckle tracking echocardiography, allows improved identification of impaired cardiac contractility. The peripheral blood transcriptome may be an important window into SCM pathophysiology. We therefore studied the peripheral blood transcriptome and LV GLS in a prospective cohort of patients with sepsis. Results In this single-center observational pilot study, we enrolled adult patients (age > 18) with sepsis within 48 h of admission to the ICU. SCM was defined as LV GLS > − 17% based on echocardiograms performed within 72 h of admission. We enrolled 27 patients, 24 of whom had high-quality RNA results; 18 (75%) of 24 had SCM. The group was 50% female and had a median (IQR) age of 59.5 (48.5–67.0) years and admission APACHE II score of 21.0 (16.0–32.3). Forty-six percent had septic shock. After filtering for low-expression and non-coding genes, 15,418 protein coding genes were expressed and 73 had significantly different expression between patients with vs. without SCM. In patients with SCM, 43 genes were upregulated and 30 were downregulated. Pathway analysis identified enrichment in type 1 interferon signaling (adjusted p < 10−5). Conclusions In this hypothesis-generating study, SCM was associated with upregulation of genes in the type 1 interferon signaling pathway. Interferons are cytokines that stimulate the innate and adaptive immune response and are implicated in the early proinflammatory and delayed immunosuppression phases of sepsis. While type 1 interferons have not been implicated previously in SCM, interferon therapy (for viral hepatitis and Kaposi sarcoma) has been associated with reversible cardiomyopathy, perhaps suggesting a role for interferon signaling in SCM.
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Affiliation(s)
- Meghan M Cirulis
- Division of Respiratory, Critical Care, and Occupational Pulmonary Medicine, Department of Medicine, University of Utah, Salt Lake City, UT, USA. .,Pulmonary and Critical Care Division, Department of Medicine, Intermountain Medical Center, Shock Trauma Intensive Care Unit, 5121 South Cottonwood Street, Murray, UT, 84107 42, USA.
| | - Sarah J Beesley
- Division of Respiratory, Critical Care, and Occupational Pulmonary Medicine, Department of Medicine, University of Utah, Salt Lake City, UT, USA.,Pulmonary and Critical Care Division, Department of Medicine, Intermountain Medical Center, Shock Trauma Intensive Care Unit, 5121 South Cottonwood Street, Murray, UT, 84107 42, USA.,Critical Care Echocardiography Service, Intermountain Medical Center, Murray, UT, USA
| | - Emily L Wilson
- Pulmonary and Critical Care Division, Department of Medicine, Intermountain Medical Center, Shock Trauma Intensive Care Unit, 5121 South Cottonwood Street, Murray, UT, 84107 42, USA.,Critical Care Echocardiography Service, Intermountain Medical Center, Murray, UT, USA
| | - Chris Stubben
- Bioinformatics Shared Resource, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA
| | - Troy D Olsen
- Pulmonary and Critical Care Division, Department of Medicine, Intermountain Medical Center, Shock Trauma Intensive Care Unit, 5121 South Cottonwood Street, Murray, UT, 84107 42, USA
| | - Eliotte L Hirshberg
- Division of Respiratory, Critical Care, and Occupational Pulmonary Medicine, Department of Medicine, University of Utah, Salt Lake City, UT, USA.,Pulmonary and Critical Care Division, Department of Medicine, Intermountain Medical Center, Shock Trauma Intensive Care Unit, 5121 South Cottonwood Street, Murray, UT, 84107 42, USA.,Critical Care Echocardiography Service, Intermountain Medical Center, Murray, UT, USA
| | - Lane M Smith
- Department of Emergency Medicine, Wake Forest School of Medicine, Winston Salem, NC, USA
| | - Michael J Lanspa
- Division of Respiratory, Critical Care, and Occupational Pulmonary Medicine, Department of Medicine, University of Utah, Salt Lake City, UT, USA.,Pulmonary and Critical Care Division, Department of Medicine, Intermountain Medical Center, Shock Trauma Intensive Care Unit, 5121 South Cottonwood Street, Murray, UT, 84107 42, USA.,Critical Care Echocardiography Service, Intermountain Medical Center, Murray, UT, USA
| | - Theodore P Abraham
- Division of Cardiology, Department of Medicine, UCSF, San Francisco, CA, USA
| | - Colin K Grissom
- Pulmonary and Critical Care Division, Department of Medicine, Intermountain Medical Center, Shock Trauma Intensive Care Unit, 5121 South Cottonwood Street, Murray, UT, 84107 42, USA.,Critical Care Echocardiography Service, Intermountain Medical Center, Murray, UT, USA
| | - Matthew T Rondina
- Department of Emergency Medicine, Wake Forest School of Medicine, Winston Salem, NC, USA.,Molecular Medicine Program, University of Utah, Salt Lake City, UT, USA
| | - Samuel M Brown
- Division of Respiratory, Critical Care, and Occupational Pulmonary Medicine, Department of Medicine, University of Utah, Salt Lake City, UT, USA.,Pulmonary and Critical Care Division, Department of Medicine, Intermountain Medical Center, Shock Trauma Intensive Care Unit, 5121 South Cottonwood Street, Murray, UT, 84107 42, USA.,Critical Care Echocardiography Service, Intermountain Medical Center, Murray, UT, USA
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26
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Howe M, Bauer J, Schulze A, Kropp S, Locksley RM, Alferink J, Weighardt H, Scheu S. Production of IFNβ by Conventional Dendritic Cells after Stimulation with Viral Compounds and IFNβ-Independent IFNAR1-Signaling Pathways are Associated with Aggravation of Polymicrobial Sepsis. Int J Mol Sci 2019; 20:ijms20184410. [PMID: 31500303 PMCID: PMC6770674 DOI: 10.3390/ijms20184410] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Revised: 09/01/2019] [Accepted: 09/05/2019] [Indexed: 12/27/2022] Open
Abstract
Viral infections are associated with increased incidence of severe sepsis. Particularly during the early stages, type I interferons (IFNs) are known mediators of detrimental effects. However, the functional role of early interferon β (IFNβ) and its cellular source during sepsis in the context of preexisting viral infections has not been defined. Using the colon ascendens stent peritonitis (CASP) model, we demonstrate that IFNβ−/− and type I IFN receptor (IFNAR1)−/− mice were less susceptible to sepsis after pre-stimulation with the viral mimetic poly(I:C). Wild type (WT) mice treated with poly(I:C) exhibited altered expression patterns of TNF and IL-12p40 during CASP which were dependent on IFNβ or IFNAR1, suggesting a mechanism for the increased sepsis susceptibility of WT mice. Using a double cytokine reporter mouse model, we present novel data on the simultaneous expression of IFNβ and IL-12p40 on a single cell level during polymicrobial sepsis in vivo. Conventional dendritic cells (cDCs) were identified as primary source of IFNβ and the protective cytokine IL-12p40 after CASP surgery irrespective of poly(I:C) pre-stimulation. These data demonstrated that if polymicrobial sepsis is preceded by a viral infection, IFNβ and IL-12p40 are expressed by polyfunctional cDCs suggesting that these cells can play both detrimental and beneficial roles during sepsis development.
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Affiliation(s)
- Magdalena Howe
- Institute of Medical Microbiology and Hospital Hygiene, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Jens Bauer
- Institute of Medical Microbiology and Hospital Hygiene, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Anja Schulze
- Institute of Medical Microbiology and Hospital Hygiene, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Sonja Kropp
- Institute of Medical Microbiology and Hospital Hygiene, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Richard M Locksley
- Howard Hughes Medical Institute and Departments of Medicine and Microbiology/Immunology, University of California, San Francisco, CA 94143, USA
| | - Judith Alferink
- Department of Psychiatry, University of Münster, 48149 Münster, Germany
- Cluster of Excellence EXC 1003, Cells in Motion, 48149 Münster, Germany
| | - Heike Weighardt
- Life and Medical Sciences Institute (LIMES), University of Bonn, 53115 Bonn, Germany
| | - Stefanie Scheu
- Institute of Medical Microbiology and Hospital Hygiene, Heinrich Heine University Düsseldorf, 40225 Düsseldorf, Germany.
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27
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Hu Q, Knight PH, Ren Y, Ren H, Zheng J, Wu X, Ren J, Sawyer RG. The emerging role of stimulator of interferons genes signaling in sepsis: Inflammation, autophagy, and cell death. Acta Physiol (Oxf) 2019; 225:e13194. [PMID: 30269441 DOI: 10.1111/apha.13194] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Revised: 09/17/2018] [Accepted: 09/26/2018] [Indexed: 12/16/2022]
Abstract
Stimulator of interferons genes (STING) is an adaptor protein that plays a critical role in the secretion of type I interferons and pro-inflammatory cytokines in response to cytosolic nucleic acid. Recent research indicates the involvement of the STING pathway in uncontrolled inflammation, sepsis, and shock. STING signaling is significantly up-regulated in human sepsis, and STING agonists are suggested to contribute to the pathogenesis of sepsis and shock. Nevertheless, little is known about the consequences of activated STING-mediated signaling during sepsis. It has been shown that aberrant activation of the STING-dependent way can result in increased inflammation, type I interferons responses, and cell death (including apoptosis, necroptosis, and pyroptosis). In addition, autophagy modulation has been demonstrated to protect against multiple organs injuries in animal sepsis model. However, impaired autophagy may contribute to the aberrant activation of STING signaling, leading to uncontrolled inflammation and cell death. Here we present a comprehensive review of recent advances in the understanding of STING signaling, focusing on the regulatory mechanisms and the roles of this pathway in sepsis.
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Affiliation(s)
- Qiongyuan Hu
- Department of Surgery, Jinling Hospital Medical School of Nanjing University Nanjing China
| | - Patrick H. Knight
- Department of Surgery Western Michigan University Homer Stryker, MD, School of Medicine Kalamazoo Michigan
| | - Yanhan Ren
- Chicago Medical School Rosalind Franklin University of Medicine and Science North Chicago Illinois
| | - Huajian Ren
- Department of Surgery, Jinling Hospital Medical School of Nanjing University Nanjing China
| | - Jiashuo Zheng
- Department of Surgery, Jinling Hospital Medical School of Nanjing University Nanjing China
| | - Xiuwen Wu
- Department of Surgery, Jinling Hospital Medical School of Nanjing University Nanjing China
| | - Jianan Ren
- Department of Surgery, Jinling Hospital Medical School of Nanjing University Nanjing China
| | - Robert G. Sawyer
- Department of Surgery Western Michigan University Homer Stryker, MD, School of Medicine Kalamazoo Michigan
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28
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Jiang CS, Zhuang CL, Zhu K, Zhang J, Muehlmann LA, Figueiró Longo JP, Azevedo RB, Zhang W, Meng N, Zhang H. Identification of a novel small-molecule Keap1-Nrf2 PPI inhibitor with cytoprotective effects on LPS-induced cardiomyopathy. J Enzyme Inhib Med Chem 2018; 33:833-841. [PMID: 29693453 PMCID: PMC6009974 DOI: 10.1080/14756366.2018.1461856] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 04/03/2018] [Accepted: 04/03/2018] [Indexed: 12/20/2022] Open
Abstract
A new Keap1-Nrf2 protein-protein interaction (PPI) inhibitor ZJ01 was identified from our compound library by fluorescence polarization assay, surface plasmon resonance, molecular docking and molecular dynamics simulation. ZJ01 could in vitro trigger Nrf2 nuclear translocation, subsequently resulting in increased mRNA levels of Nrf2 target genes HO-1 and NQO1. Meanwhile, ZJ01 suppressed LPS-induced production of ROS and the mRNA levels of pro-inflammatory cytokines TNF-α, IL-1β and IL-6 in H9c2 cardiac cells. Moreover, in an in vivo mouse model of septic cardiomyopathy induced by intraperitoneal injection of lipopolysaccharide, ZJ01 demonstrated a cytoprotective effect, upregulated Nrf2 protein nuclear accumulation, and remarkably suppressed the abovementioned cytokine levels in cardiomyocytes. The results presented herein provided a novel chemotype for the development of direct Keap1-Nrf2 PPI inhibitors and suggested that compound ZJ01 is a promising drug lead for septic cardiomyopathy treatment. ZJ01 was identified as a new Keap1-Nrf2 PPI inhibitor and drug lead for septic cardiomyopathy treatment by in vitro and in vivo experiments.
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Affiliation(s)
- Cheng-Shi Jiang
- School of Biological Science and Technology, University of Jinan, Jinan, China
| | - Chun-Lin Zhuang
- School of Pharmacy, Second Military Medical University, Shanghai, China
| | - Kongkai Zhu
- School of Biological Science and Technology, University of Jinan, Jinan, China
| | - Juan Zhang
- Faculty of Ceilandia, University of Brasília, Brasilia, Brazil
- Institute of Biological Sciences, University of Brasília, Brasilia, Brazil
| | - Luis Alexandre Muehlmann
- Faculty of Ceilandia, University of Brasília, Brasilia, Brazil
- Institute of Biological Sciences, University of Brasília, Brasilia, Brazil
| | | | | | - Wen Zhang
- School of Pharmacy, Second Military Medical University, Shanghai, China
| | - Ning Meng
- School of Biological Science and Technology, University of Jinan, Jinan, China
| | - Hua Zhang
- School of Biological Science and Technology, University of Jinan, Jinan, China
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29
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McKenna S, Burey T, Sandoval J, Nguyen L, Castro O, Gudipati S, Gonzalez J, El Kasmi KC, Wright CJ. Immunotolerant p50/NFκB Signaling and Attenuated Hepatic IFNβ Expression Increases Neonatal Sensitivity to Endotoxemia. Front Immunol 2018; 9:2210. [PMID: 30319651 PMCID: PMC6168645 DOI: 10.3389/fimmu.2018.02210] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Accepted: 09/06/2018] [Indexed: 12/20/2022] Open
Abstract
Sepsis is a major cause of neonatal morbidity and mortality. The current paradigm suggests that neonatal susceptibility to infection is explained by an innate immune response that is functionally immature. Recent studies in adults have questioned a therapeutic role for IFNβ in sepsis; however, the role of IFNβ in mediating neonatal sensitivity to sepsis is unknown. We evaluated the transcriptional regulation and expression of IFNβ in early neonatal (P0) and adult murine models of endotoxemia (IP LPS, 5 mg/kg). We found that hepatic, pulmonary, and serum IFNβ expression was significantly attenuated in endotoxemic neonates when compared to similarly exposed adults. Furthermore, endotoxemia induced hepatic p65/NFκB and IRF3 activation exclusively in adults. In contrast, endotoxemia induced immunotolerant p50/NFκB signaling in neonatal mice without evidence of IRF3 activation. Consistent with impaired IFNβ expression and attenuated circulating serum levels, neonatal pulmonary STAT1 signaling and target gene expression was significantly lower than adult levels. Using multiple in vivo approaches, the source of hepatic IFNβ expression in endotoxemic adult mice was determined to be the hepatic macrophage, and experiments in RAW 264.7 cells confirmed that LPS-induced IFNβ expression was NFκB dependent. Finally, treating neonatal mice with IFNβ 2 h after endotoxemia stimulated pulmonary STAT1 signaling and STAT1 dependent gene expression. Furthermore, IFNβ treatment of endotoxemic neonatal animals resulted in significantly improved survival following exposure to lethal endotoxemia. In conclusion, endotoxemia induced IFNβ expression is attenuated in the early neonatal period, secondary to impaired NFκB-p65/IRF3 signaling. Pre-treatment with IFNβ decreases neonatal sensitivity to endotoxemia. These results support further study of the role of impaired IFNβ expression and neonatal sensitivity to sepsis.
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Affiliation(s)
- Sarah McKenna
- Section of Neonatology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, United States
| | - Taylor Burey
- Section of Neonatology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, United States
| | - Jeryl Sandoval
- Section of Neonatology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, United States
| | - Leanna Nguyen
- Section of Neonatology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, United States
| | - Odalis Castro
- Section of Neonatology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, United States
| | - Suma Gudipati
- Section of Neonatology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, United States
| | - Jazmin Gonzalez
- Section of Neonatology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, United States
| | - Karim C El Kasmi
- Section of Neonatology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, United States
| | - Clyde J Wright
- Section of Neonatology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, United States
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30
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Petes C, Mintsopoulos V, Finnen RL, Banfield BW, Gee K. The effects of CD14 and IL-27 on induction of endotoxin tolerance in human monocytes and macrophages. J Biol Chem 2018; 293:17631-17645. [PMID: 30242126 DOI: 10.1074/jbc.ra118.003501] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 09/11/2018] [Indexed: 12/26/2022] Open
Abstract
Upon repeated exposure to endotoxin or lipopolysaccharide (LPS), myeloid cells enter a refractory state called endotoxin tolerance as a homeostatic mechanism. In innate immune cells, LPS is recognized by co-receptors Toll-like receptor 4 (TLR4) and CD-14 to initiate an inflammatory response for subsequent cytokine production. One such cytokine, interleukin (IL)-27, is produced by myeloid cells in response to bacterial infection. In monocytes, IL-27 has proinflammatory functions such as up-regulating TLR4 expression for enhanced LPS-mediated cytokine production; alternatively, IL-27 induces inhibitory functions in activated macrophages. This study investigated the effects of IL-27 on the induction of endotoxin tolerance in models of human monocytes compared with macrophages. Our data demonstrate that IL-27 inhibits endotoxin tolerance by up-regulating cell surface TLR4 expression and soluble CD14 production to mediate stability of the surface LPS-TLR4-CD14 complex in THP-1 cells. In contrast, elevated basal expression of membrane-bound CD14 in phorbol 12-myristate 13-acetate (PMA)-THP-1 cells, primary monocytes, and primary macrophages may promote CD14-mediated endocytosis and be responsible for the preservation of an endotoxin-tolerized state in the presence of IL-27. Overall, the efficacy of IL-27 in inhibiting endotoxin tolerance in human THP-1 monocytes and PMA-THP-1 macrophages is affected by membrane-bound and soluble CD14 expression.
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Affiliation(s)
- Carlene Petes
- From the Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - Victoria Mintsopoulos
- From the Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - Renée L Finnen
- From the Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - Bruce W Banfield
- From the Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - Katrina Gee
- From the Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario K7L 3N6, Canada
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31
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Barichello T, Sayana P, Giridharan VV, Arumanayagam AS, Narendran B, Della Giustina A, Petronilho F, Quevedo J, Dal-Pizzol F. Long-Term Cognitive Outcomes After Sepsis: a Translational Systematic Review. Mol Neurobiol 2018; 56:186-251. [PMID: 29687346 DOI: 10.1007/s12035-018-1048-2] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 03/27/2018] [Indexed: 01/04/2023]
Abstract
Sepsis is systemic inflammatory response syndrome with a life-threatening organ dysfunction that is caused by an unbalanced host immune response in an attempt to eliminate invasive microorganisms. We posed questions, "Does sepsis survivor patients have increased risk of neuropsychiatric manifestations?" and "What is the mechanism by which sepsis induces long-term neurological sequelae, particularly substantial cognitive function decline in survivor patients and in pre-clinical sepsis models?" The studies were identified by searching PubMed/MEDLINE (National Library of Medicine), PsycINFO, EMBASE (Ovid), LILACS (Latin American and Caribbean Health Sciences Literature), IBECS (Bibliographical Index in Spanish in Health Sciences), and Web of Science databases for peer-reviewed journals that were published until January 2018. A total of 3555 papers were included in the primary screening. After that, 130 articles were selected for the study. A number of pre-clinical studies have shown an auto amplification of pro-inflammatory cytokines such as tumor necrosis factor alpha (TNF-α), interleukin (IL)-1β, and IL-6 in the first few hours after sepsis induction, also increased blood-brain barrier permeability, elevated levels of matrix metalloproteinases, increased levels of damage-associated molecular patterns were demonstrated. In addition, the rodents presented long-term cognitive impairment in different behavioral tasks that were prevented by blocking the mechanism of action of these inflammatory mediators. Clinical studies have showed that sepsis survivors presented increased bodily symptoms such as fatigue, pain, visual disturbances, gastrointestinal problems, and neuropsychiatric problems compared to before sepsis. Sepsis leaves the survivors with an aftermath of physiological, neuropsychiatric, and functional impairment. Systematic review registration: CRD42017071755.
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Affiliation(s)
- Tatiana Barichello
- Translational Psychiatry Program, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston, 1941 East Road, Houston, TX, 77054, USA. .,Laboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil.
| | - Pavani Sayana
- Translational Psychiatry Program, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston, 1941 East Road, Houston, TX, 77054, USA
| | - Vijayasree V Giridharan
- Translational Psychiatry Program, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston, 1941 East Road, Houston, TX, 77054, USA
| | | | - Boomadevi Narendran
- Division of Epidemiology, Human Genetics and Environmental Sciences, University of Texas School of Public Health, Houston, TX, USA
| | - Amanda Della Giustina
- Translational Psychiatry Program, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston, 1941 East Road, Houston, TX, 77054, USA.,Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Postgraduate Program in Health Sciences, University of South Santa Catarina, Tubarao, SC, Brazil
| | - Fabricia Petronilho
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Postgraduate Program in Health Sciences, University of South Santa Catarina, Tubarao, SC, Brazil
| | - João Quevedo
- Translational Psychiatry Program, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston, 1941 East Road, Houston, TX, 77054, USA.,Laboratory of Neurosciences, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina-UNESC, Criciúma, SC, Brazil.,Center of Excellence on Mood Disorders, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Felipe Dal-Pizzol
- Laboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
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32
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Rotavirus Degrades Multiple Interferon (IFN) Type Receptors To Inhibit IFN Signaling and Protects against Mortality from Endotoxin in Suckling Mice. J Virol 2017; 92:JVI.01394-17. [PMID: 29070687 DOI: 10.1128/jvi.01394-17] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 10/17/2017] [Indexed: 02/07/2023] Open
Abstract
STAT1 phosphorylation in response to exogenous interferon (IFN) administration can be inhibited by rotaviral replication both in vitro and in vivo In addition many rotavirus strains are resistant to the actions of different IFN types. The regulation by rotaviruses (RVs) of antiviral pathways mediated by multiple IFN types is not well understood. In this study, we find that during infection in vitro and in vivo, RVs significantly deplete IFN type I, II, and III receptors (IFNRs). Regulation of IFNRs occurred exclusively within RV-infected cells and could be abrogated by inhibiting the lysosomal-endosomal degradation pathway. In vitro, IFNR degradation was conserved across multiple RV strains that differ in their modes of regulating IFN induction. In suckling mice, exogenously administered type I, II, or III IFN induced phosphorylation of STAT1-Y701 within intestinal epithelial cells (IECs) of suckling mice. Murine EW strain RV infection transiently activated intestinal STAT1 at 1 day postinfection (dpi) but not subsequently at 2 to 3 dpi. In response to injection of purified IFN-α/β or -λ, IECs in EW-infected mice exhibited impaired STAT1-Y701 phosphorylation, correlating with depletion of different intestinal IFNRs and impaired IFN-mediated transcription. The ability of EW murine RV to inhibit multiple IFN types led us to test protection of suckling mice from endotoxin-mediated shock, an outcome that is dependent on the host IFN response. Compared to mortality in controls, mice infected with EW murine RV were substantially protected against mortality following parenteral endotoxin administration. These studies identify a novel mechanism of IFN subversion by RV and reveal an unexpected protective effect of RV infection on endotoxin-mediated shock in suckling mice.IMPORTANCE Antiviral functions of types I, II, and III IFNs are mediated by receptor-dependent activation of STAT1. Here, we find that RV degrades the types I, II, and III IFN receptors (IFNRs) in vitro In a suckling mouse model, RV effectively blocked STAT1 activation and transcription following injection of different purified IFNs. This correlated with significantly decreased protein expression of intestinal types I and II IFNRs. Recent studies demonstrate that in mice lipopolysaccharide (LPS)-induced lethality is prevented by genetic ablation of IFN signaling genes such as IFNAR1 and STAT1. When suckling mice were infected with RV, they were substantially protected from lethal exposure to endotoxin. These findings provide novel insights into the mechanisms underlying rotavirus regulation of different interferons and are likely to stimulate new research into both rotavirus pathogenesis and endotoxemia.
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Abstract
Sepsis is caused by a dysregulated host response to infection. Immune responses determine the characteristics of sepsis. The body's protection against infection involves danger signal surveillance and recognition from nonself, effector functions in response to sensing danger signals, homeostatic regulation, and generation of immunologic memory. During sepsis, the immune system is activated by pathogen-associated and host-derived molecular patterns. Detecting these molecular patterns generates multisystem responses. Impaired organ function remote to the site of infection is the unifying feature. The processes by which an appropriate response to a microbial invader change from adaptive to maladaptive and dysregulated remain unclear.
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