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Khan MJ, Singh P, Jha P, Nayek A, Malik MZ, Bagler G, Kumar B, Ponnusamy K, Ali S, Chopra M, Dohare R, Singh IK, Syed MA. Investigating the link between miR-34a-5p and TLR6 signaling in sepsis-induced ARDS. 3 Biotech 2023; 13:282. [PMID: 37496978 PMCID: PMC10366072 DOI: 10.1007/s13205-023-03700-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 05/10/2023] [Indexed: 07/28/2023] Open
Abstract
Acute lung injury (ALI)/acute respiratory distress syndrome (ARDS) are lung complications diagnosed by impaired gaseous exchanges leading to mortality. From the diverse etiologies, sepsis is a prominent contributor to ALI/ARDS. In the present study, we retrieved sepsis-induced ARDS mRNA expression profile and identified 883 differentially expressed genes (DEGs). Next, we established an ARDS-specific weighted gene co-expression network (WGCN) and picked the blue module as our hub module based on highly correlated network properties. Later we subjected all hub module DEGs to form an ARDS-specific 3-node feed-forward loop (FFL) whose highest-order subnetwork motif revealed one TF (STAT6), one miRNA (miR-34a-5p), and one mRNA (TLR6). Thereafter, we screened a natural product library and identified three lead molecules that showed promising binding affinity against TLR6. We then performed molecular dynamics simulations to evaluate the stability and binding free energy of the TLR6-lead molecule complexes. Our results suggest these lead molecules may be potential therapeutic candidates for treating sepsis-induced ALI/ARDS. In-silico studies on clinical datasets for sepsis-induced ARDS indicate a possible positive interaction between miR-34a and TLR6 and an antagonizing effect on STAT6 to promote inflammation. Also, the translational study on septic mice lungs by IHC staining reveals a hike in the expression of TLR6. We report here that miR-34a actively augments the effect of sepsis on lung epithelial cell apoptosis. This study suggests that miR-34a promotes TLR6 to heighten inflammation in sepsis-induced ALI/ARDS. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-023-03700-1.
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Affiliation(s)
- Mohd Junaid Khan
- Translational Research Lab, Department of Biotechnology, Faculty of Natural Sciences, Jamia Millia Islamia, New Delhi, 110025 India
| | - Prithvi Singh
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, 110025 India
| | - Prakash Jha
- Laboratory of Molecular Modeling and Anticancer Drug Development, Dr. B. R. Ambedkar Center for Biomedical Research, University of Delhi, New Delhi, 110007 India
| | - Arnab Nayek
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, 110029 India
| | - Md. Zubbair Malik
- Department of Genetics and Bioinformatics, Dasman Diabetes Institute, Dasman, 15462 Kuwait City, Kuwait
| | - Ganesh Bagler
- Department of Computational Biology, Indraprastha Institute of Information Technology, New Delhi, 110020 India
| | - Bhupender Kumar
- Department of Microbiology, Swami Shraddhanand College, University of Delhi, New Delhi, 110036 India
| | - Kalaiarasan Ponnusamy
- Biotechnology and Viral Hepatitis Division, National Centre for Disease Control, Sham Nath Marg, New Delhi, 110054 India
| | - Shakir Ali
- Department of Biochemistry, School of Chemical and Life Sciences Jamia Hamdard, New Delhi, 110062 India
| | - Madhu Chopra
- Laboratory of Molecular Modeling and Anticancer Drug Development, Dr. B. R. Ambedkar Center for Biomedical Research, University of Delhi, New Delhi, 110007 India
| | - Ravins Dohare
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, 110025 India
| | - Indrakant Kumar Singh
- Molecular Biology Research Lab, Department of Zoology, Deshbandhu College, University of Delhi, Kalkaji, New Delhi, 110019 India
- DBC i4 Center, Deshbandhu College, University of Delhi, Kalkaji, New Delhi, 110019 India
| | - Mansoor Ali Syed
- Translational Research Lab, Department of Biotechnology, Faculty of Natural Sciences, Jamia Millia Islamia, New Delhi, 110025 India
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2
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Lockhart JS, Sumagin R. Non-Canonical Functions of Myeloperoxidase in Immune Regulation, Tissue Inflammation and Cancer. Int J Mol Sci 2022; 23:ijms232012250. [PMID: 36293108 PMCID: PMC9603794 DOI: 10.3390/ijms232012250] [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: 08/26/2022] [Revised: 10/05/2022] [Accepted: 10/11/2022] [Indexed: 11/07/2022] Open
Abstract
Myeloperoxidase (MPO) is one of the most abundantly expressed proteins in neutrophils. It serves as a critical component of the antimicrobial defense system, facilitating microbial killing via generation of reactive oxygen species (ROS). Interestingly, emerging evidence indicates that in addition to the well-recognized canonical antimicrobial function of MPO, it can directly or indirectly impact immune cells and tissue responses in homeostatic and disease states. Here, we highlight the emerging non-canonical functions of MPO, including its impact on neutrophil longevity, activation and trafficking in inflammation, its interactions with other immune cells, and how these interactions shape disease outcomes. We further discuss MPO interactions with barrier forming endothelial and epithelial cells, specialized cells of the central nervous system (CNS) and its involvement in cancer progression. Such diverse function and the MPO association with numerous inflammatory disorders make it an attractive target for therapies aimed at resolving inflammation and limiting inflammation-associated tissue damage. However, while considering MPO inhibition as a potential therapy, one must account for the diverse impact of MPO activity on various cellular compartments both in health and disease.
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3
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Kelley WJ, Wragg KM, Chen J, Murthy T, Xu Q, Boyne MT, Podojil JR, Elhofy A, Goldstein DR. Nanoparticles reduce monocytes within the lungs to improve outcomes after influenza virus infection in aged mice. JCI Insight 2022; 7:156320. [PMID: 35737459 PMCID: PMC9462478 DOI: 10.1172/jci.insight.156320] [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: 11/02/2021] [Accepted: 06/21/2022] [Indexed: 01/26/2023] Open
Abstract
Older people exhibit dysregulated innate immunity to respiratory viral infections, including influenza and SARS-CoV-2, and show an increase in morbidity and mortality. Nanoparticles are a potential practical therapeutic that could reduce exaggerated innate immune responses within the lungs during viral infection. However, such therapeutics have not been examined for effectiveness during respiratory viral infection, particular in aged hosts. Here, we employed a lethal model of influenza viral infection in vulnerable aged mice to examine the ability of biodegradable, cargo-free nanoparticles, designated ONP-302, to resolve innate immune dysfunction and improve outcomes during infection. We administered ONP-302 via i.v. injection to aged mice at day 3 after infection, when the hyperinflammatory innate immune response was already established. During infection, we found that ONP-302 treatment reduced the numbers of inflammatory monocytes within the lungs and increased their number in both the liver and spleen, without impacting viral clearance. Importantly, cargo-free nanoparticles reduced lung damage, reduced histological lung inflammation, and improved gas exchange and, ultimately, the clinical outcomes in influenza-infected aged mice. In conclusion, ONP-302 improves outcomes in influenza-infected aged mice. Thus, our study provides information concerning a practical therapeutic, which, if translated clinically, could improve disease outcomes for vulnerable older patients suffering from respiratory viral infections.
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Affiliation(s)
| | | | - Judy Chen
- Department of Internal Medicine and,Graduate Program in Immunology, University of Michigan, Ann Arbor, Michigan, USA
| | - Tushar Murthy
- Research and Development, COUR Pharmaceuticals Development Company Inc., Northbrook, Illinois, USA
| | - Qichen Xu
- Research and Development, COUR Pharmaceuticals Development Company Inc., Northbrook, Illinois, USA
| | - Michael T. Boyne
- Research and Development, COUR Pharmaceuticals Development Company Inc., Northbrook, Illinois, USA
| | - Joseph R. Podojil
- Research and Development, COUR Pharmaceuticals Development Company Inc., Northbrook, Illinois, USA
| | - Adam Elhofy
- Research and Development, COUR Pharmaceuticals Development Company Inc., Northbrook, Illinois, USA
| | - Daniel R. Goldstein
- Department of Internal Medicine and,Graduate Program in Immunology, University of Michigan, Ann Arbor, Michigan, USA.,Department of Microbiology and Immunology, University of Michigan, Michigan, USA
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4
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Kongkiatkamon S, Terkawi L, Guan Y, Adema V, Hasipek M, Dombrovski T, Co M, Walter W, Awada H, Parker Y, Hutter S, Pagliuca S, Gurnari C, Rogers HJ, Meggendorfer M, Lindner DJ, Haferlach T, Visconte V, LaFramboise T, Jha BK, Maciejewski JP. Rare germline alterations of myeloperoxidase predispose to myeloid neoplasms. Leukemia 2022; 36:2086-2096. [PMID: 35761024 DOI: 10.1038/s41375-022-01630-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 06/06/2022] [Accepted: 06/09/2022] [Indexed: 11/09/2022]
Abstract
Myeloperoxidase (MPO) gene alterations with variable clinical penetrance have been found in hereditary MPO deficiency, but their leukemia association in patients and carriers has not been established. Germline MPO alterations were found to be significantly enriched in myeloid neoplasms: 28 pathogenic/likely pathogenic variants were identified in 100 patients. The most common alterations were c.2031-2 A > C, R569W, M519fs* and Y173C accounting for about half of the cases. While functional experiments showed that the marrow stem cell pool of Mpo-/- mice was not increased, using competitive repopulation demonstrated that Mpo-/- grafts gained growth advantage over MPO wild type cells. This finding also correlated with increased clonogenic potential after serial replating in the setting of H2O2-induced oxidative stress. Furthermore, we demonstrated that H2O2-induced DNA damage and activation of error-prone DNA repair may result in secondary genetic damage potentially predisposing to leukemia leukemic evolution. In conclusion, our study for the first time demonstrates that germline MPO variants may constitute risk alleles for MN evolution.
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Affiliation(s)
- Sunisa Kongkiatkamon
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, USA.,Research Unit in Translational Hematology, Division of Hematology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Laila Terkawi
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Yihong Guan
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Vera Adema
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Metis Hasipek
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Tatiana Dombrovski
- Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OH, USA
| | - Milo Co
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, USA
| | | | - Hassan Awada
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Yvonne Parker
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, USA
| | | | - Simona Pagliuca
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Carmelo Gurnari
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Heesun J Rogers
- Department of Laboratory Medicine, Cleveland Clinic, Cleveland, OH, USA
| | | | - Daniel J Lindner
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, USA
| | | | - Valeria Visconte
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Thomas LaFramboise
- Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OH, USA
| | - Babal K Jha
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Jaroslaw P Maciejewski
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, USA.
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5
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Mohammad S, O’Riordan CE, Verra C, Aimaretti E, Alves GF, Dreisch K, Evenäs J, Gena P, Tesse A, Rützler M, Collino M, Calamita G, Thiemermann C. RG100204, A Novel Aquaporin-9 Inhibitor, Reduces Septic Cardiomyopathy and Multiple Organ Failure in Murine Sepsis. Front Immunol 2022; 13:900906. [PMID: 35774785 PMCID: PMC9238327 DOI: 10.3389/fimmu.2022.900906] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 05/09/2022] [Indexed: 11/13/2022] Open
Abstract
Sepsis is caused by systemic infection and is a major health concern as it is the primary cause of death from infection. It is the leading cause of mortality worldwide and there are no specific effective treatments for sepsis. Gene deletion of the neutral solute channel Aquaporin 9 (AQP9) normalizes oxidative stress and improves survival in a bacterial endotoxin induced mouse model of sepsis. In this study we described the initial characterization and effects of a novel small molecule AQP9 inhibitor, RG100204, in a cecal ligation and puncture (CLP) induced model of polymicrobial infection. In vitro, RG100204 blocked mouse AQP9 H2O2 permeability in an ectopic CHO cell expression system and abolished the LPS induced increase in superoxide anion and nitric oxide in FaO hepatoma cells. Pre-treatment of CLP-mice with RG100204 (25 mg/kg p.o. before CLP and then again at 8 h after CLP) attenuated the hypothermia, cardiac dysfunction (systolic and diastolic), renal dysfunction and hepatocellular injury caused by CLP-induced sepsis. Post-treatment of CLP-mice with RG100204 also attenuated the cardiac dysfunction (systolic and diastolic), the renal dysfunction caused by CLP-induced sepsis, but did not significantly reduce the liver injury or hypothermia. The most striking finding was that oral administration of RG100204 as late as 3 h after the onset of polymicrobial sepsis attenuated the cardiac and renal dysfunction caused by severe sepsis. Immunoblot quantification demonstrated that RG100204 reduced activation of the NLRP3 inflammasome pathway. Moreover, myeloperoxidase activity in RG100204 treated lung tissue was reduced. Together these results indicate that AQP9 may be a novel drug target in polymicrobial sepsis.
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Affiliation(s)
- Shireen Mohammad
- William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
- *Correspondence: Shireen Mohammad, ; Christoph Thiemermann,
| | - Caroline E. O’Riordan
- William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
| | - Chiara Verra
- William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
| | - Eleonora Aimaretti
- Department of Clinical and Biological Sciences, University of Turin, Turin, Italy
| | | | | | - Johan Evenäs
- Red Glead Discovery Akiebolag (AB), Lund, Sweden
| | - Patrizia Gena
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari “Aldo Moro”, Bari, Italy
| | - Angela Tesse
- Nantes Université, Instite National de la Santé et de la Recherche Médicale (INSERM), Centre National de la Rescherche Scientifique (CNRS), l’institut du Thorax, Nantes, France
| | - Michael Rützler
- Department of Biochemistry and Structural Biology, Lund University, Lund, Sweden
- Apoglyx Akiebolag (AB), Lund, Sweden
| | - Massimo Collino
- Department of Neurosciences “Rita Levi Montalcini”, University of Turin, Turin, Italy
| | - Giuseppe Calamita
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari “Aldo Moro”, Bari, Italy
| | - Christoph Thiemermann
- William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
- *Correspondence: Shireen Mohammad, ; Christoph Thiemermann,
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6
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Kremserová S, Kocurková A, Chorvátová M, Klinke A, Kubala L. Myeloperoxidase Deficiency Alters the Process of the Regulated Cell Death of Polymorphonuclear Neutrophils. Front Immunol 2022; 13:707085. [PMID: 35211113 PMCID: PMC8860816 DOI: 10.3389/fimmu.2022.707085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Accepted: 01/18/2022] [Indexed: 01/17/2023] Open
Abstract
Polymorphonuclear neutrophils (PMNs) play a key role in host defense. However, their massive accumulation at the site of inflammation can delay regenerative healing processes and can initiate pathological inflammatory processes. Thus, the efficient clearance of PMNs mediated by the induction of regulated cell death is a key process preventing the development of these pathological conditions. Myeloperoxidase (MPO), a highly abundant enzyme in PMN granules, primarily connected with PMN defense machinery, is suggested to play a role in PMN-regulated cell death. However, the contribution of MPO to the mechanisms of PMN cell death remains incompletely characterized. Herein, the process of the cell death of mouse PMNs induced by three different stimuli – phorbol 12-myristate 13-acetate (PMA), opsonized streptococcus (OST), and N-formyl-met-leu-phe (fMLP) – was investigated. MPO-deficient PMNs revealed a significantly decreased rate of cell death characterized by phosphatidylserine surface exposure and cell membrane permeabilization. An inhibitor of MPO activity, 4-aminobenzoic acid hydrazide, did not exhibit a significant effect on PMA-induced cell death compared to MPO deficiency. Interestingly, only the limited activation of markers related to apoptotic cell death was observed (e.g. caspase 8 activation, Bax expression) and they mostly did not correspond to phosphatidylserine surface exposure. Furthermore, a marker characterizing autophagy, cleavage of LC3 protein, as well as histone H3 citrullination and its surface expression was observed. Collectively, the data show the ability of MPO to modulate the life span of PMNs primarily through the potentiation of cell membrane permeabilization and phosphatidylserine surface exposure.
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Affiliation(s)
- Silvie Kremserová
- Institute of Biophysics, Academy of Sciences of the Czech Republic, Brno, Czechia
| | - Anna Kocurková
- Institute of Biophysics, Academy of Sciences of the Czech Republic, Brno, Czechia.,Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czechia.,International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czechia
| | - Michaela Chorvátová
- Institute of Biophysics, Academy of Sciences of the Czech Republic, Brno, Czechia.,Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czechia
| | - Anna Klinke
- Clinic of General and Interventional Cardiology/Angiology, Agnes Wittenborg Institute of Translational Cardiovascular Research, Herz- und Diabeteszentrum NRW, Ruhr-Universität Bochum, Bad Oeynhausen, Germany
| | - Lukáš Kubala
- Institute of Biophysics, Academy of Sciences of the Czech Republic, Brno, Czechia.,Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czechia.,International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czechia
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7
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Comparison of anti-inflammatory effects of Lonicerae Japonicae Flos and Lonicerae Flos based on network pharmacology. CHINESE HERBAL MEDICINES 2021; 13:332-341. [PMID: 36118930 PMCID: PMC9476724 DOI: 10.1016/j.chmed.2021.06.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 11/25/2020] [Accepted: 01/20/2021] [Indexed: 12/15/2022] Open
Abstract
Objective Methods Results Conclusion
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8
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TREML4 receptor regulates inflammation and innate immune cell death during polymicrobial sepsis. Nat Immunol 2020; 21:1585-1596. [DOI: 10.1038/s41590-020-0789-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 08/21/2020] [Indexed: 12/20/2022]
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9
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Ju M, He H, Chen S, Liu Y, Liu Y, Pan S, Zheng Y, Xuan L, Zhu D, Luo Z. Ulinastatin ameliorates LPS‑induced pulmonary inflammation and injury by blocking the MAPK/NF‑κB signaling pathways in rats. Mol Med Rep 2019; 20:3347-3354. [PMID: 31432172 DOI: 10.3892/mmr.2019.10561] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Accepted: 04/17/2019] [Indexed: 11/05/2022] Open
Abstract
Ulinastatin, a urinary trypsin inhibitor (UTI) is commonly used to treat patients with acute inflammatory disease. However, the underlying mechanisms of its anti‑inflammatory effect in acute lung injury (ALI) are not fully understood. The present study aimed to investigate the protective effect of UTI and explore its potential mechanisms by using a rat model of lipopolysaccharide (LPS)‑induced ALI. Rats were treated with 5 mg/kg LPS by intratracheal instillation. The histological changes in LPS‑induced ALI was evaluated using hematoxylin and eosin staining and the myeloperoxidase (MPO) activity was determined using ELISA. The wet/dry ratio (W/D ratio) of the lungs was used to assess the severity of pulmonary edema and Evans blue dye was used to evaluate the severity of lung vascular leakage. The results demonstrated that LPS administration induced histological changes and significantly increased the lung W/D ratio, MPO activity and Evans blue dye extravasation compared with the control group. However, treatment with UTI attenuated LPS‑induced ALI in rats by modifying histological changes and reducing the lung W/D ratio, MPO activity and Evans blue dye extravasation. In addition, LPS induced the secretion of numerous pro‑inflammatory cytokines in bronchoalveolar lavage fluid (BALF), including tumor necrosis factor‑α, interleukin (IL)‑6, IL‑1β and interferon‑γ; however, these cytokines were strongly reduced following treatment with UTI. In addition, UTI was able to reduce cellular counts in BALF, including neutrophils and leukocytes. Western blotting demonstrated that UTI significantly blocked the LPS‑stimulated MAPK and NF‑κB signaling pathways. The results of the present study indicated that UTI could exert an anti‑inflammatory effect on LPS‑induced ALI by inhibiting the MAPK and NF‑κB signaling pathways, which suggested that UTI may be considered as an effective drug in the treatment of ALI.
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Affiliation(s)
- Minjie Ju
- Department of Critical Care, Zhongshan Hospital, Fudan University, Shanghai 200032, P.R. China
| | - Hongyu He
- Department of Critical Care, Zhongshan Hospital, Fudan University, Shanghai 200032, P.R. China
| | - Song Chen
- Department of Critical Care, Zhongshan Hospital, Fudan University, Shanghai 200032, P.R. China
| | - Yimei Liu
- Department of Critical Care, Zhongshan Hospital, Fudan University, Shanghai 200032, P.R. China
| | - Yujing Liu
- Department of Nursing, Zhongshan Hospital, Fudan University, Shanghai 200032, P.R. China
| | - Simeng Pan
- Department of Critical Care, Zhongshan Hospital, Fudan University, Shanghai 200032, P.R. China
| | - Yijun Zheng
- Department of Critical Care, Zhongshan Hospital, Fudan University, Shanghai 200032, P.R. China
| | - Lizhen Xuan
- Department of Critical Care, Zhongshan Hospital, Fudan University, Shanghai 200032, P.R. China
| | - Duming Zhu
- Department of Critical Care, Zhongshan Hospital, Fudan University, Shanghai 200032, P.R. China
| | - Zhe Luo
- Department of Critical Care, Zhongshan Hospital, Fudan University, Shanghai 200032, P.R. China
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10
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Xu M, Wang C, Li N, Wang J, Zhang Y, Deng X. Intraperitoneal Injection of Acetate Protects Mice Against Lipopolysaccharide (LPS)‑Induced Acute Lung Injury Through Its Anti-Inflammatory and Anti-Oxidative Ability. Med Sci Monit 2019; 25:2278-2288. [PMID: 30921298 PMCID: PMC6450300 DOI: 10.12659/msm.911444] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND As a member of short-chain fatty acids, acetate exhibits anti-inflammatory capacity. The present study aimed to investigate the effect of acetate on lipopolysaccharide (LPS)-induced acute lung injury (ALI) and explored its underlying mechanism. MATERIAL AND METHODS Acetate (250 mM, 400 µL) was given intraperitoneally 30 minutes after LPS (5 mg/kg) intratracheal injection. Lung tissues and bronchoalveolar lavage fluid (BALF) were collected 6 hours after the challenge of LPS. The histopathology scores, wet-to-dry weight ratios, protein content, and cytokine levels in BALF were assessed. RESULTS The acetate treatment resulted in improved lung pathological score, alleviated LPS-induced microvascular permeability, and suppressed the production of reactive oxygen species. Furthermore, acetate decreased the level of pro-inflammatory cytokines and chemokines in the lungs and BALF, consistent with the declined immune cell counting found in BALF. In addition, phosphorylation levels of mitogen-activated protein kinase (MAPK) pathway in lung tissues were downregulated by acetate. CONCLUSIONS These results suggested that acetate exerts its protective effects via anti-inflammatory and anti-oxidant activities on LPS-induced ALI.
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Affiliation(s)
- Mengda Xu
- Department of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, China (mainland)
| | - Changli Wang
- Department of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, China (mainland)
| | - Na Li
- Department of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, China (mainland)
| | - Jun Wang
- Department of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, China (mainland)
| | - Yan Zhang
- Department of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, China (mainland)
| | - Xiaoming Deng
- Department of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, China (mainland)
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11
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Mao M, Hao L, Wang Y, Liu QQ. Transplantation of Endothelial Progenitor Cells Attenuates Lipopolysaccharide-Induced Lung Injury via Inhibiting the Inflammatory Secretion of Neutrophils in Rats. Am J Med Sci 2018; 357:49-56. [PMID: 30611320 DOI: 10.1016/j.amjms.2018.10.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Revised: 10/21/2018] [Accepted: 10/26/2018] [Indexed: 10/27/2022]
Abstract
BACKGROUND Endothelial progenitor cells (EPCs) are special types of stem cells and are a potential novel therapeutic approach in acute lung injury (ALI). Transplantation of EPCs can ameliorate the inflammatory state by reducing adhesion and exudation of inflammatory cells. However, the mechanism underlying the effect of EPCs on inflammatory response modulation remains unclear. The aim of the present study was to investigate the effect of EPCs on the modulation of neutrophils in vitro and in vivo. MATERIALS AND METHODS EPCs were cocultured with neutrophils after lipopolysaccharide stimulation in vitro or transplanted into ALI rats, and neutrophil inflammatory mediators including tumor necrosis factor-α, interleukin-1β, neutrophil elastase, myeloperoxidase and matrix metalloproteinases-9 were detected by enzyme-linked immunosorbent assay, an myeloperoxidase detection kits, reverse transcription-polymerase chain reaction and western blotting. RESULTS The results showed that EPCs significantly downregulated the expression of inflammatory mediators when cocultured with neutrophils in vitro or in vivo. CONCLUSIONS These findings demonstrated that EPCs contributed to lung injury in ALI rats by downregulating neutrophil inflammatory mediators.
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Affiliation(s)
- Mei Mao
- Department of Geriatrics, No 958 Hospital of PLA, Chongqing, China.
| | - Lei Hao
- Department of Neurology, The Fifth People's Hospital of Chongqing, Chongqing, China
| | - Yi Wang
- Department of Respiratory Medicine, the Sixth People's Hospital of Ji'nan City Affiliated to Jining Medical College, Jinan, China
| | - Qiu-Qian Liu
- Department of Infection Prevention and Control, No.958 Hospital of PLA, Chongqing, China
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12
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Zhang LM, Zhang J, Zhang Y, Wang L, Fei C, Yi ZW, Dong L. Interleukin-18 binding protein attenuates lipopolysaccharide-induced acute lung injury in mice via suppression NF-κB and activation Nrf2 pathway. Biochem Biophys Res Commun 2018; 505:837-842. [PMID: 30301527 DOI: 10.1016/j.bbrc.2018.09.193] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Accepted: 09/29/2018] [Indexed: 12/17/2022]
Abstract
Interleukin (IL)-18 belongs to a rather large IL-1 gene family and is a proinflammatory cytokine. IL-18 plays important roles in lung injury. IL-18 binding protein (IL-18BP), a natural antagonist of IL-18, binds IL-18 with high affinity. IL-18BP is able to neutralize IL-18 biological activity and has a protective effect against renal fibrosis. The aim of this study was to evaluate the potential protective effect of IL-18BP on lipopolysaccharide (LPS)-induced acute lung injury (ALI) in mice and to illuminate the underlying mechanisms. Results indicated that pretreatment with IL-18BP significantly attenuated LPS-induced pulmonary pathological injury. Meanwhile, IL-18BP pretreatment markedly inhibited infiltration of inflammatory cell and release of inflammatory factor in ALI mice in vivo and in primary macrophages after LPS insult in vitro. IL-18BP treatment dramatically reduced oxidative stress through increasing superoxide dismutase (SOD) and glutathione (GSH) contents, and decreasing the levels of malondialdehyde (MDA) and reactive oxygen species (ROS) in LPS-induced ALI mice and primary macrophages. Additionally, IL-18BP was also observed to markedly decreased the activation of nuclear factor-kappa B (NF-κB) and upregulated the nuclear factor erythroid 2-related factor 2 (Nrf2). Taken together, IL-18BP possessed protective effect against LPS-induced ALI, which might be associated with its regulation of NF-κB and Nrf2 activities. The results rendered IL-18BP worthy of further development into a pharmaceutical drug for the treatment of ALI.
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Affiliation(s)
- Li-Ming Zhang
- Hunan University of Medicine, Huaihua, Hunan, 410208, China
| | - Jun Zhang
- Hunan University of Medicine, Huaihua, Hunan, 410208, China
| | - Ying Zhang
- Hunan University of Medicine, Huaihua, Hunan, 410208, China
| | - Lin Wang
- Hunan University of Medicine, Huaihua, Hunan, 410208, China
| | - Chang Fei
- Hunan University of Medicine, Huaihua, Hunan, 410208, China
| | - Zong-Wei Yi
- Hunan University of Medicine, Huaihua, Hunan, 410208, China
| | - Liang Dong
- Department of Anesthesiology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, 563000, China.
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13
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Su M, Lin W, Tsai C, Chiang B, Yang Y, Lin Y, Wang L, Lee J, Chou C, Wu Y, Yeh Y, Lee YL. Childhood asthma clusters reveal neutrophil-predominant phenotype with distinct gene expression. Allergy 2018; 73:2024-2032. [PMID: 29574758 DOI: 10.1111/all.13439] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/08/2018] [Indexed: 01/08/2023]
Abstract
BACKGROUND Childhood asthma comprises different phenotypes with complex pathophysiology. Different asthma phenotypes evoke various clinical symptoms and vary in their responses to treatments. METHODS We applied k-means clustering algorithm of twelve objective laboratory tests among 351 asthmatic children enrolled in the Taiwanese Consortium of Childhood Asthma Study (TCCAS). We constructed gene expression profiles of peripheral blood mononuclear cells (PBMC) from children with different asthma phenotypes. RESULTS Five distinct phenotypes of childhood asthma were identified and can be characterized by either eosinophil-predominant or neutrophil-predominant inflammatory characteristics. In the gene expression profile analysis, significant differences were noted for neutrophil-predominant asthma, compared with samples from all the other asthma phenotypes. The vast majority of the differentially expressed genes in neutrophil-predominant asthma was associated with corticosteroid response. From an independent inhaled corticosteroid (ICS) response cohort, we also found neutrophils could be activated in this severe asthma phenotype and neutrophil-predominant asthma may be associated with corticosteroid nonresponsiveness. CONCLUSION Phenotype clustering of childhood asthma can be helpful to identify clinically relevant patients and reveal different inflammatory characteristics in asthmatic children. Neutrophil-predominant asthma is the most severe asthma phenotype with poor corticosteroid response. Gene expression profile of different asthma phenotypes not only improve our knowledge of childhood asthma, but also can guide asthma precision medicine.
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Affiliation(s)
- M.‐W. Su
- Institute of Epidemiology and Preventive Medicine College of Public Health National Taiwan University Taipei Taiwan
- Institute of Biomedical Sciences Academia Sinica Taipei Taiwan
| | - W.‐C. Lin
- Institute of Biomedical Sciences Academia Sinica Taipei Taiwan
| | - C.‐H. Tsai
- Institute of Epidemiology and Preventive Medicine College of Public Health National Taiwan University Taipei Taiwan
| | - B.‐L. Chiang
- Department of Pediatrics National Taiwan University Hospital Taipei Taiwan
| | - Y.‐H. Yang
- Department of Pediatrics National Taiwan University Hospital Taipei Taiwan
| | - Y.‐T. Lin
- Department of Pediatrics National Taiwan University Hospital Taipei Taiwan
| | - L.‐C. Wang
- Department of Pediatrics National Taiwan University Hospital Taipei Taiwan
| | - J.‐H. Lee
- Department of Pediatrics National Taiwan University Hospital Taipei Taiwan
| | - C.‐C. Chou
- Department of Pediatrics National Taiwan University Hospital Taipei Taiwan
- Doctor Chou's Pediatric Clinic Taipei Taiwan
| | - Y.‐F. Wu
- Institute of Epidemiology and Preventive Medicine College of Public Health National Taiwan University Taipei Taiwan
| | - Y.‐L. Yeh
- Institute of Biomedical Sciences Academia Sinica Taipei Taiwan
- School of Medicine College of Medicine Taipei Medical University Taipei Taiwan
| | - Y. L. Lee
- Institute of Epidemiology and Preventive Medicine College of Public Health National Taiwan University Taipei Taiwan
- Institute of Biomedical Sciences Academia Sinica Taipei Taiwan
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14
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Aratani Y. Myeloperoxidase: Its role for host defense, inflammation, and neutrophil function. Arch Biochem Biophys 2018; 640:47-52. [PMID: 29336940 DOI: 10.1016/j.abb.2018.01.004] [Citation(s) in RCA: 540] [Impact Index Per Article: 90.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Revised: 12/14/2017] [Accepted: 01/09/2018] [Indexed: 12/22/2022]
Abstract
Myeloperoxidase (MPO) is a heme-containing peroxidase expressed mainly in neutrophils and to a lesser degree in monocytes. In the presence of hydrogen peroxide and halides, MPO catalyzes the formation of reactive oxygen intermediates, including hypochlorous acid (HOCl). The MPO/HOCl system plays an important role in microbial killing by neutrophils. In addition, MPO has been demonstrated to be a local mediator of tissue damage and the resulting inflammation in various inflammatory diseases. These findings have implicated MPO as an important therapeutic target in the treatment of inflammatory conditions. In contrast to its injurious effects at sites of inflammation, recent studies using animal models of various inflammatory diseases have demonstrated that MPO deficiency results in the exaggeration of inflammatory response, and that it affects neutrophil functions including cytokine production. Given these diverse effects, a growing interest has emerged in the role of this well-studied enzyme in health and disease.
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Affiliation(s)
- Yasuaki Aratani
- Graduate School of Nanobioscience, Yokohama City University, Seto 22-2, Kanazawa, Yokohama 236-0027, Japan.
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15
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Richter JR, Sutton JM, Hexley P, Johannigman TA, Lentsch AB, Pritts TA. Leukoreduction of packed red blood cells attenuates proinflammatory properties of storage-derived microvesicles. J Surg Res 2017; 223:128-135. [PMID: 29433864 DOI: 10.1016/j.jss.2017.09.052] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 08/23/2017] [Accepted: 09/29/2017] [Indexed: 11/15/2022]
Abstract
BACKGROUND Leukoreduction prior to packed red blood cell (pRBC) storage is not a universally accepted practice. Our laboratory has previously shown that microvesicles (MVs) accumulate in pRBC units during storage and play an important role in lung injury after resuscitation. Currently, the effect of leukoreduction on MV formation in stored pRBC units is unknown. In the present study, we investigated the hypothesis that leukoreduction of pRBC units prior to storage would attenuate the production of MVs and decrease pulmonary inflammation after hemorrhage and resuscitation. METHODS Leukoreduced and nonleukoreduced pRBC units were prepared from human donors and C57/Bl6 mice and stored for up to 42 d and 14 d, respectively. At intervals during storage, MVs were isolated from pRBC units, quantified and characterized based on size, morphology, and levels of proinflammatory cytokines. In additional experiments, mice underwent controlled hemorrhage followed by resuscitation with normal saline (NS) with or without equal numbers of MVs isolated from leukoreduced or nonleukoreduced stored mouse pRBC. Histologic lung sections were evaluated for the presence of tissue edema and inflammatory cells. RESULTS For both human and mouse pRBCs, the number of MVs significantly increased throughout the storage period. There were significantly fewer MVs present in leukoreduced units. The average MV size significantly increased over time and was similar between groups. Levels of interleukin 1α (IL-1α), regulated on activation, normal T cell expressed and secreted (RANTES), and macrophage-derived chemokine (MDC) were lower in MVs from leukoreduced pRBC units as compared with MVs from nonleukoreduced units. Hemorrhaged mice resuscitated with NS with the addition of MV from leukoreduced pRBC demonstrated significantly less pulmonary edema and inflammatory cell recruitment as compared to those resuscitated with NS with the addition of MV from nonleukoreduced pRBC. CONCLUSIONS Prestorage leukoreduction of pRBC units reduces the formation and proinflammatory properties of MV, which in turn decreases lung injury secondary to MV from stored pRBC units after hemorrhage and resuscitation.
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Affiliation(s)
- Jillian R Richter
- Department of Surgery and Institute for Military Medicine, University of Cincinnati, Cincinnati, Ohio
| | - Jeffrey M Sutton
- Department of Surgery and Institute for Military Medicine, University of Cincinnati, Cincinnati, Ohio
| | | | - Taylor A Johannigman
- Department of Surgery and Institute for Military Medicine, University of Cincinnati, Cincinnati, Ohio
| | - Alex B Lentsch
- Department of Surgery and Institute for Military Medicine, University of Cincinnati, Cincinnati, Ohio
| | - Timothy A Pritts
- Department of Surgery and Institute for Military Medicine, University of Cincinnati, Cincinnati, Ohio.
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16
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Myeloperoxidase targets oxidative host attacks to Salmonella and prevents collateral tissue damage. Nat Microbiol 2017; 2:16268. [PMID: 28112722 DOI: 10.1038/nmicrobiol.2016.268] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Accepted: 12/13/2016] [Indexed: 02/07/2023]
Abstract
Host control of infections crucially depends on the capability to kill pathogens with reactive oxygen species (ROS). However, these toxic molecules can also readily damage host components and cause severe immunopathology. Here, we show that neutrophils use their most abundant granule protein, myeloperoxidase, to target ROS specifically to pathogens while minimizing collateral tissue damage. A computational model predicted that myeloperoxidase efficiently scavenges diffusible H2O2 at the surface of phagosomal Salmonella and converts it into highly reactive HOCl (bleach), which rapidly damages biomolecules within a radius of less than 0.1 μm. Myeloperoxidase-deficient neutrophils were predicted to accumulate large quantities of H2O2 that still effectively kill Salmonella, but most H2O2 would leak from the phagosome. Salmonella stimulation of neutrophils from normal and myeloperoxidase-deficient human donors experimentally confirmed an inverse relationship between myeloperoxidase activity and extracellular H2O2 release. Myeloperoxidase-deficient mice infected with Salmonella had elevated hydrogen peroxide tissue levels and exacerbated oxidative damage of host lipids and DNA, despite almost normal Salmonella control. These data show that myeloperoxidase has a major function in mitigating collateral tissue damage during antimicrobial oxidative bursts, by converting diffusible long-lived H2O2 into highly reactive, microbicidal and locally confined HOCl at pathogen surfaces.
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17
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Liu T, Zhou Y, Li P, Duan JX, Liu YP, Sun GY, Wan L, Dong L, Fang X, Jiang JX, Guan CX. Blocking triggering receptor expressed on myeloid cells-1 attenuates lipopolysaccharide-induced acute lung injury via inhibiting NLRP3 inflammasome activation. Sci Rep 2016; 6:39473. [PMID: 28004759 PMCID: PMC5177963 DOI: 10.1038/srep39473] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Accepted: 11/23/2016] [Indexed: 12/12/2022] Open
Abstract
Acute lung injury (ALI) is associated with high mortality and uncontrolled inflammation plays a critical role in ALI. TREM-1 is an amplifier of inflammatory response, and is involved in the pathogenesis of many infectious diseases. NLRP3 inflammasome is a member of NLRs family that contributes to ALI. However, the effect of TREM-1 on NLRP3 inflammasome and ALI is still unknown. This study aimed to determine the effect of TREM-1 modulation on LPS-induced ALI and activation of the NLRP3 inflammasome. We showed that LR12, a TREM-1 antagonist peptide, significantly improved survival of mice after lethal doses of LPS. LR12 also attenuated inflammation and lung tissue damage by reducing histopathologic changes, infiltration of the macrophage and neutrophil into the lung, and production of the pro-inflammatory cytokine, and oxidative stress. LR12 decreased expression of the NLRP3, pro-caspase-1 and pro-IL-1β, and inhibited priming of the NLRP3 inflammasome by inhibiting NF-κB. LR12 also reduced the expression of NLRP3 and caspase-1 p10 protein, and secretion of the IL-1β, inhibited activation of the NLRP3 inflammasome by decreasing ROS. For the first time, these data show that TREM-1 aggravates inflammation in ALI by activating NLRP3 inflammasome, and blocking TREM-1 may be a potential therapeutic approach for ALI.
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Affiliation(s)
- Tian Liu
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, China
| | - Yong Zhou
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, China
| | - Ping Li
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, China
| | - Jia-Xi Duan
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, China
| | - Yong-Ping Liu
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, China
| | - Guo-Ying Sun
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, China
| | - Li Wan
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, China
| | - Liang Dong
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, China.,Department of Anesthesiology, Affiliated Hospital of Zunyi Medical College, Zunyi, Guizhou 56300, China
| | - Xiang Fang
- Department of Neurology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Jian-Xin Jiang
- State Key Laboratory of Trauma, Burns, and Combined Injury, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing, 400042, China
| | - Cha-Xiang Guan
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, China
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18
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Fujimoto K, Motowaki T, Tamura N, Aratani Y. Myeloperoxidase deficiency enhances zymosan phagocytosis associated with up-regulation of surface expression of CD11b in mouse neutrophils. Free Radic Res 2016; 50:1340-1349. [DOI: 10.1080/10715762.2016.1244821] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Kenta Fujimoto
- Graduate School of Nanobioscience, Yokohama City University, Yokohama, Japan
| | - Takehiro Motowaki
- Graduate School of Nanobioscience, Yokohama City University, Yokohama, Japan
| | - Naoya Tamura
- International College of Arts and Sciences, Yokohama City University, Yokohama, Japan
| | - Yasuaki Aratani
- Graduate School of Nanobioscience, Yokohama City University, Yokohama, Japan
- International College of Arts and Sciences, Yokohama City University, Yokohama, Japan
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