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The Role of Oxidative Stress in Decreased Acetylcholinesterase Activity at the Neuromuscular Junction of the Diaphragm during Sepsis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:9718615. [PMID: 29230271 PMCID: PMC5694580 DOI: 10.1155/2017/9718615] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 10/17/2017] [Indexed: 01/08/2023]
Abstract
Our recent study demonstrated that acetylcholinesterase (AChE) activity at the neuromuscular junction (NMJ) of the diaphragm decreased during sepsis. However, the mechanisms were not clearly identified. In this study, we aimed to investigate whether the decreased AChE activity was related to oxidative stress by observing AChE activity in different grades of sepsis induced by caecal ligation and puncture (CLP). At 24 h after surgery, an assay of thiobarbituric acid reactive species (TBARS) and protein carbonyls, as well as the myeloperoxidase (MPO), superoxide dismutase (SOD), and catalase (CAT) activity, was conducted. AChE activity was measured by biochemical and histological detection. AChE and CAT activity in the diaphragm decreased, while the contents of TBARS and protein carbonyls, the activity of MPO and SOD, and the SOD/CAT ratios increased. The above changes were much more significant in the mid-grade septic group than in the low-grade septic group. The colour of the AChE activity staining at the NMJ gradually lightened from the sham surgery group to the mid-grade septic group. AChE activity was significantly negatively correlated with the levels of TBARS and protein carbonyls. We consider that oxidative stress might be responsible for decreased AChE activity in the diaphragms of rats induced with sepsis.
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Mishra HK, Ma J, Walcheck B. Ectodomain Shedding by ADAM17: Its Role in Neutrophil Recruitment and the Impairment of This Process during Sepsis. Front Cell Infect Microbiol 2017; 7:138. [PMID: 28487846 PMCID: PMC5403810 DOI: 10.3389/fcimb.2017.00138] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 04/04/2017] [Indexed: 12/13/2022] Open
Abstract
Neutrophils are specialized at killing bacteria and are recruited from the blood in a rapid and robust manner during infection. A cascade of adhesion events direct their attachment to the vascular endothelium and migration into the underlying tissue. A disintegrin and metalloproteinase 17 (ADAM17) functions in the cell membrane of neutrophils and endothelial cells by cleaving its substrates, typically in a cis manner, at an extracellular site proximal to the cell membrane. This process is referred to as ectodomain shedding and it results in the downregulation of various adhesion molecules and receptors, and the release of immune regulating factors. ADAM17 sheddase activity is induced upon cell activation and rapidly modulates intravascular adhesion events in response to diverse environmental stimuli. During sepsis, an excessive systemic inflammatory response against infection, neutrophil migration becomes severely impaired. This involves ADAM17 as indicated by increased levels of its cleaved substrates in the blood of septic patients, and that ADAM17 inactivation improves neutrophil recruitment and bacterial clearance in animal models of sepsis. Excessive ADAM17 sheddase activity during sepsis thus appears to undermine in a direct and indirect manner the necessary balance between intravascular adhesion and de-adhesion events that regulate neutrophil migration into sites of infection. This review provides an overview of ADAM17 function and regulation and its potential contribution to neutrophil dysfunction during sepsis.
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Affiliation(s)
- Hemant K Mishra
- Department of Veterinary and Biomedical Sciences, University of MinnesotaSt. Paul, MN, USA
| | - Jing Ma
- Department of Veterinary and Biomedical Sciences, University of MinnesotaSt. Paul, MN, USA
| | - Bruce Walcheck
- Department of Veterinary and Biomedical Sciences, University of MinnesotaSt. Paul, MN, USA
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Shen XF, Cao K, Jiang JP, Guan WX, Du JF. Neutrophil dysregulation during sepsis: an overview and update. J Cell Mol Med 2017; 21:1687-1697. [PMID: 28244690 PMCID: PMC5571534 DOI: 10.1111/jcmm.13112] [Citation(s) in RCA: 181] [Impact Index Per Article: 25.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Accepted: 01/05/2017] [Indexed: 12/15/2022] Open
Abstract
Sepsis remains a leading cause of death worldwide, despite advances in critical care, and understanding of the pathophysiology and treatment strategies. No specific therapy or drugs are available for sepsis. Neutrophils play a critical role in controlling infection under normal conditions, and it is suggested that their migration and antimicrobial activity are impaired during sepsis which contribute to the dysregulation of immune responses. Recent studies further demonstrated that interruption or reversal of the impaired migration and antimicrobial function of neutrophils improves the outcome of sepsis in animal models. In this review, we provide an overview of the associated mediators and signal pathways involved which govern the survival, migration and antimicrobial function of neutrophils in sepsis, and discuss the potential of neutrophils as a target to specifically diagnose and/or predict the outcome of sepsis.
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Affiliation(s)
- Xiao-Fei Shen
- Department of General Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Ke Cao
- Department of Intensive Care Unit, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Jin-Peng Jiang
- Department of Rehabilitation Medicine, PLA Army General Hospital, Beijing, China
| | - Wen-Xian Guan
- Department of General Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Jun-Feng Du
- Department of General Surgery, PLA Army General Hospital, Beijing, China
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Abstract
Objective: Sepsis is defined as life-threatening organ dysfunction due to a dysregulated host response to infection. In this article, we reviewed the correlation between neutrophil dysfunction and sepsis. Data Sources: Articles published up to May 31, 2016, were selected from the PubMed databases, with the keywords of “neutrophil function”, “neutrophil dysfunction”, and “sepsis”. Study Selection: Articles were obtained and reviewed to analyze the neutrophil function in infection and neutrophil dysfunction in sepsis. Results: We emphasized the diagnosis of sepsis and its limitations. Pathophysiological mechanisms involve a generalized circulatory, immune, coagulopathic, and/or neuroendocrine response to infection. Many studies focused on neutrophil burst or cytokines. Complement activation, impairment of neutrophil migration, and endothelial lesions are involved in this progress. Alterations of cytokines, chemokines, and other mediators contribute to neutrophil dysfunction in sepsis. Conclusions: Sepsis represents a severe derangement of the immune response to infection, resulting in neutrophil dysfunction. Neutrophil dysfunction promotes sepsis and even leads to organ failure. Mechanism studies, clinical practice, and strategies to interrupt dysregulated neutrophil function in sepsis are desperately needed.
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Affiliation(s)
- Fang Zhang
- Department of Emergency Medicine, Peking Union Medical College Hospital, Beijing 100730, China
| | - An-Lei Liu
- Department of Emergency Medicine, Peking Union Medical College Hospital, Beijing 100730, China
| | - Shuang Gao
- Department of Intensive Care Medicine, Beijing Jishuitan Hospital, Beijing 100035, China
| | - Shui Ma
- Department of Emergency Medicine, Beijing Chaoyang Hospital, Beijing 100020, China
| | - Shu-Bin Guo
- Department of Emergency Medicine, Beijing Chaoyang Hospital, Beijing 100020, China
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Immune modulation of some autoimmune diseases: the critical role of macrophages and neutrophils in the innate and adaptive immunity. J Transl Med 2017; 15:36. [PMID: 28202039 PMCID: PMC5312441 DOI: 10.1186/s12967-017-1141-8] [Citation(s) in RCA: 196] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Accepted: 02/03/2017] [Indexed: 12/16/2022] Open
Abstract
Macrophages and neutrophils are key components involved in the regulation of numerous chronic inflammatory diseases, infectious disorders, and especially certain autoimmune disease. However, little is known regarding the contribution of these cells to the pathogenesis of autoimmune disorders. Recent studies have aimed to clarify certain important factors affecting the immunogenicity of these cells, including the type and dose of antigen, the microenvironment of the cell-antigen encounter, and the number, subset, and phenotype of these cells, which can prevent or induce autoimmune responses. This review highlights the role of macrophage subsets and neutrophils in injured tissues, supporting their cooperation during the pathogenesis of certain autoimmune diseases.
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Jin L, Batra S, Jeyaseelan S. Deletion of Nlrp3 Augments Survival during Polymicrobial Sepsis by Decreasing Autophagy and Enhancing Phagocytosis. THE JOURNAL OF IMMUNOLOGY 2016; 198:1253-1262. [PMID: 28031338 DOI: 10.4049/jimmunol.1601745] [Citation(s) in RCA: 88] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 11/25/2016] [Indexed: 01/07/2023]
Abstract
NLRP3 inflammasome is a critical player in innate immunity. Neutrophil recruitment to tissues and effective neutrophil function are critical innate immune mechanisms for bacterial clearance. However, the role of NLRP3 in neutrophil-dependent bacterial clearance in polymicrobial sepsis is unclear. In this study, we evaluated the role of NLRP3 in polymicrobial sepsis induced by cecal ligation and puncture (CLP). Our results showed protection from death in NLRP3-deficient (Nlrp3-/-) and NLRP3 inhibitor-treated wild-type (C57BL/6) mice. Nlrp3-/- and NLRP3 inhibitor-treated mice displayed lower bacterial load but no impairment in neutrophil recruitment to peritoneum. However, neutrophil depletion abrogated protection from death in Nlrp3-/- mice in response to CLP. Intriguingly, following CLP, Nlrp3-/- peritoneal cells (primarily neutrophils) demonstrate decreased autophagy, augmented phagocytosis, and enhanced scavenger receptor (macrophage receptor with collagenous structure) and mannose-binding leptin expression. These findings enhance our understanding of the critical role of NLRP3 in modulating autophagy and phagocytosis in neutrophils and suggest that therapies should be targeted to modulate autophagy and phagocytosis in neutrophils to control bacterial burden in tissues during CLP-induced polymicrobial sepsis.
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Affiliation(s)
- Liliang Jin
- Laboratory of Lung Biology, Department of Pathobiological Sciences and Center for Experimental Infectious Disease Research, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803; and
| | - Sanjay Batra
- Laboratory of Lung Biology, Department of Pathobiological Sciences and Center for Experimental Infectious Disease Research, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803; and
| | - Samithamby Jeyaseelan
- Laboratory of Lung Biology, Department of Pathobiological Sciences and Center for Experimental Infectious Disease Research, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803; and .,Division of Pulmonary and Critical Care, Department of Medicine, LSU Health Sciences Center, New Orleans, LA 70112
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Rump K, Unterberg M, Bergmann L, Bankfalvi A, Menon A, Schäfer S, Scherag A, Bazzi Z, Siffert W, Peters J, Adamzik M. AQP5-1364A/C polymorphism and the AQP5 expression influence sepsis survival and immune cell migration: a prospective laboratory and patient study. J Transl Med 2016; 14:321. [PMID: 27871297 PMCID: PMC5117689 DOI: 10.1186/s12967-016-1079-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Accepted: 11/08/2016] [Indexed: 12/12/2022] Open
Abstract
Background The C-allele of the aquaporin (AQP5) -1364A/C polymorphism is associated with decreased AQP5 expression but increased 30-day survival in patients with severe sepsis. AQP5 expression might affect survival via an impact on cell migration. Consequently, we tested the hypothesis that (1) Aqp5 knockout (KO) compared to wild type (WT) mice show an increased survival following lipopolysaccharide (LPS) administration, and that (2) AQP5 expression and the AQP5 -1364A/C polymorphism alters immune cell migration. Methods We investigated Aqp5-KO and wild type mice after intraperitoneal injection of either E.coli lipopolysaccharide (LPS, serotype O127:B8, 20 mg/kg) or saline. Furthermore, neutrophils of volunteers with the AA-AQP5 or AC/CC-AQP5- genotype were incubated with 10−8 M Chemotactic peptide (fMLP) and their migration was assessed by a filter migration assay. Additionally, AQP5 expression after fMLP incubation was analyzed by RT-PCR and Western blot. Moreover, migration of AQP5 overexpressing Jurkat cells was studied after SDF-1α-stimulation. We used exact Wilcoxon–Mann–Whitney tests; exact Wilcoxon signed-rank tests and the Kaplan–Meier estimator for statistical analysis. Results Fifty-six percent of Aqp5-KO but only 22% of WT mice survived following LPS-injection. WT mice showed increased neutrophil migration into peritoneum and lung compared to Aqp5-KO mice. Target-oriented migration of neutrophils was seen after 0.5 h in AA-genotype cells but only after 1.5 h in AC/CC-genotype cells, with a threefold lower migrating cell count. AQP5 overexpressing Jurkat cells showed a 2.4 times stronger migration compared to native Jurkat cells. Conclusion The AQP5 genotype may influence survival following LPS by altering neutrophil cell migration. Trial registration DRKS00010437. Retrospectively registered 26 April 2016 Electronic supplementary material The online version of this article (doi:10.1186/s12967-016-1079-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Katharina Rump
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum-Langendreer, In der Schornau 55, 45882, Bochum, Germany. .,Institut für Pharmakogenetik, Universität Duisburg-Essen, Duisburg, Germany. .,Klinik für Anästhesiologie und Intensivmedizin, Universitätsklinikum and Universität Duisburg-Essen, Essen, Germany.
| | - Matthias Unterberg
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum-Langendreer, In der Schornau 55, 45882, Bochum, Germany
| | - Lars Bergmann
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum-Langendreer, In der Schornau 55, 45882, Bochum, Germany
| | - Agnes Bankfalvi
- Institut für Pathologie, Universitätsklinikum and Universität Duisburg-Essen, Essen, Germany
| | - Anil Menon
- Department of Molecular Genetics, Biochemistry and Microbiology, University of Cincinnati, Cincinnati, OH, USA
| | - Simon Schäfer
- Klinik für Anästhesiologie und Intensivmedizin, Universitätsklinikum and Universität Duisburg-Essen, Essen, Germany.,Klinik für Anästhesiologie, LMU, Munich, Germany
| | - André Scherag
- Clinical Epidemiology, Integrated Research and Treatment Center, Center for Sepsis Control and Care (CSCC), Jena University Hospital, Jena, Germany
| | - Zainab Bazzi
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum-Langendreer, In der Schornau 55, 45882, Bochum, Germany
| | - Winfried Siffert
- Institut für Pharmakogenetik, Universität Duisburg-Essen, Duisburg, Germany
| | - Jürgen Peters
- Klinik für Anästhesiologie und Intensivmedizin, Universitätsklinikum and Universität Duisburg-Essen, Essen, Germany
| | - Michael Adamzik
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Knappschaftskrankenhaus Bochum-Langendreer, In der Schornau 55, 45882, Bochum, Germany.,Klinik für Anästhesiologie und Intensivmedizin, Universitätsklinikum and Universität Duisburg-Essen, Essen, Germany
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58
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Pleiotropic regulations of neutrophil receptors response to sepsis. Inflamm Res 2016; 66:197-207. [DOI: 10.1007/s00011-016-0993-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 08/24/2016] [Accepted: 09/20/2016] [Indexed: 12/21/2022] Open
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Role of cellular events in the pathophysiology of sepsis. Inflamm Res 2016; 65:853-868. [PMID: 27392441 DOI: 10.1007/s00011-016-0970-x] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 05/11/2016] [Accepted: 06/25/2016] [Indexed: 12/20/2022] Open
Abstract
INTRODUCTION Sepsis is a dysregulated host immune response due to an uncontrolled infection. It is a leading cause of mortality in adult intensive care units globally. When the host immune response induced against a local infection fails to contain it locally, it progresses to sepsis, severe sepsis, septic shock and death. METHOD Literature survey was performed on the roles of different innate and adaptive immune cells in the development and progression of sepsis. Additionally, the effects of septic changes on reprogramming of different immune cells were also summarized to prepare the manuscript. FINDINGS Scientific evidences to date suggest that the loss of balance between inflammatory and anti-inflammatory responses results in reprogramming of immune cell activities that lead to irreversible tissue damaging events and multi-organ failure during sepsis. Many surface receptors expressed on immune cells at various stages of sepsis have been suggested as biomarkers for sepsis diagnosis. Various immunomodulatory therapeutics, which could improve the functions of immune cells during sepsis, were shown to restore immunological homeostasis and improve survival in animal models of sepsis. CONCLUSION In-depth and comprehensive knowledge on the immune cell activities and their correlation with severity of sepsis will help clinicians and scientists to design effective immunomodulatory therapeutics for treating sepsis.
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Stabile AM, Moreto V, Batalhão ME, Rocha MJ, Antunes-Rodrigues J, Cárnio EC. Differential Role of Neurohypophysial Hormones in Hypotension and Nitric Oxide Production During Endotoxaemia. J Neuroendocrinol 2016; 28. [PMID: 27037598 DOI: 10.1111/jne.12391] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 02/29/2016] [Accepted: 03/30/2016] [Indexed: 11/27/2022]
Abstract
Besides their well-established endocrine roles, vasopressin and oxytocin are also important regulators of immune function, participating in a complex neuroendocrine-immune network. In the present study, we investigated whether and how vasopressin and oxytocin could modulate lipopolysaccharide (LPS)-induced nitric oxide (NO) production in a well-established model of experimental endotoxaemia. Male Wistar rats were previously treated i.v. with vasopressin V1 or oxytocin receptor antagonists and then received either an i.v. LPS injection to induce endotoxaemia or a saline imjection as a control. The animals were divided into two groups: in the first group, blood was collected at 2, 4 and 6 h after LPS injection; in the second group, mean arterial blood pressure (MABP) and heart rate (HR) were recorded over 6 h. Plasma vasopressin and oxytocin values were higher in LPS- compared to saline-injected animals at 2 and 4 h but returned to basal levels at 6 h. NO levels exhibited an opposite pattern, showing a progressive increase over the entire period. The previous administration of a vasopressin V1 receptor antagonist significantly reduced NO plasma concentrations at 2 and 4 h but not at 6 h. By contrast, oxytocin receptor agonist pre-treatment had no effect on the NO plasma concentration. In relation to MABP, previous treatment with vasopressin V1 receptor antagonist reversed the LPS-induced hypotension at 4 h, although this was not the case for oxytocin antagonist-treated animals. None of the antagonists affected HR. Our findings indicate that vasopressin (but not oxytocin) has effects on NO production during endotoxaemia in rats, although they do not lend support to the proposed anti-inflammatory actions of vasopressin during endotoxaemia.
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Affiliation(s)
- A M Stabile
- Ribeirão Preto College of Nursing, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - V Moreto
- Ribeirão Preto College of Nursing, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - M E Batalhão
- Ribeirão Preto College of Nursing, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - M J Rocha
- School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - J Antunes-Rodrigues
- Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - E C Cárnio
- Ribeirão Preto College of Nursing, University of São Paulo, Ribeirão Preto, SP, Brazil
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Mishra HK, Johnson TJ, Seelig DM, Walcheck B. Targeting ADAM17 in leukocytes increases neutrophil recruitment and reduces bacterial spread during polymicrobial sepsis. J Leukoc Biol 2016; 100:999-1004. [PMID: 27059842 DOI: 10.1189/jlb.3vmab1115-496rr] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 03/26/2016] [Indexed: 01/08/2023] Open
Abstract
A rapid and robust recruitment of circulating neutrophils at sites of infection is critical for preventing bacterial spread. The efficiency of this process, however, is greatly diminished during sepsis, a severe systemic inflammatory response to infection. The proteolytic activity of a disintegrin and metalloprotease-17 is induced in the cell membrane of leukocytes upon their activation, resulting in the conversion of membrane to soluble TNF-α and the release of assorted receptors from the surface of neutrophils important for their effector functions. We show that conditional knockout mice lacking a disintegrin and metalloprotease-17 in all leukocytes had a survival advantage when subjected to polymicrobial sepsis. Bacteremia and the levels of circulating proinflammatory cytokines, key determinants of sepsis severity, were significantly reduced in conditional a disintegrin and metalloprotease-17 knockout mice during sepsis. Although cecal bacterial microbiota and load were similar in unmanipulated conditional a disintegrin and metalloprotease-17 knockout and control mice, peritoneal spread of bacteria was significantly reduced in conditional a disintegrin and metalloprotease-17 knockout mice following sepsis induction, which was associated with an amplified recruitment of neutrophils. Taken together, our findings suggest that extensive a disintegrin and metalloprotease-17 induction during sepsis may tip the balance between efficient and impaired neutrophil recruitment.
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Affiliation(s)
- Hemant K Mishra
- Department of Veterinary and Biomedical Sciences, University of Minnesota, St. Paul, Minnesota, USA; and
| | - Timothy J Johnson
- Department of Veterinary and Biomedical Sciences, University of Minnesota, St. Paul, Minnesota, USA; and
| | - Davis M Seelig
- Department of Veterinary Clinical Sciences, University of Minnesota, St. Paul, Minnesota, USA
| | - Bruce Walcheck
- Department of Veterinary and Biomedical Sciences, University of Minnesota, St. Paul, Minnesota, USA; and
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Montserrat-de la Paz S, Fernandez-Arche A, de la Puerta R, Quilez AM, Muriana FJG, Garcia-Gimenez MD, Bermudez B. Mitraphylline inhibits lipopolysaccharide-mediated activation of primary human neutrophils. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2016; 23:141-148. [PMID: 26926175 DOI: 10.1016/j.phymed.2015.12.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Revised: 11/17/2015] [Accepted: 12/21/2015] [Indexed: 06/05/2023]
Abstract
BACKGROUND Mitraphylline (MTP) is the major pentacyclic oxindolic alkaloid presented in Uncaria tomentosa. It has traditionally been used to treat disorders including arthritis, heart disease, cancer, and other inflammatory diseases. However, the specific role of MTP is still not clear, with more comprehensivestudies, our understanding of this ancient herbal medicine will continue growing. HYPOTHESIS/PURPOSE Some studies provided its ability to inhibit proinflamatory cytokines, such as TNF-α, through NF-κB-dependent mechanism. TNF-α primes neutrophils and modulates phagocytic and oxidative burst activities in inflammatory processes. Since, neutrophils represent the most abundant pool of leukocytes in human blood and play a crucial role in inflammation, we aimed to determine the ability of MTP to modulate neutrophil activation and differentially regulate inflammatory-related cytokines. METHODS To determine the mechanism of action of MTP, we investigated the effects on LPS-activated human primary neutrophils responses including activation surface markers by FACS and the expression of inflammatory cytokines, measured by real time PCR and ELISA. RESULTS Treatment with MTP reduced the LPS-dependent activation effects. Activated neutrophils (CD16(+)CD62L(-)) diminished after MTP administration. Moreover, proinflamatory cytokines (TNF-α, IL-6 or IL-8) expression and secretion were concomitantly reduced, similar to basal control conditions. CONCLUSION Taken together, our results demonstrate that MTP is able to elicit an anti-inflammatory response that modulates neutrophil activation contributing to the attenuation of inflammatory episodes. Further studies are need to characterize the mechanism by which MTP can affect this pathway that could provide a means to develop MTP as new candidate for inflammatory disease therapies.
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Affiliation(s)
- Sergio Montserrat-de la Paz
- Department of Pharmacology, School of Pharmacy, University of Seville, 41012, Seville, Spain ; Laboratory of Cellular and Molecular Nutrition, Instituto de la Grasa, CSIC, Seville, Spain
| | - Angeles Fernandez-Arche
- Department of Pharmacology, School of Pharmacy, University of Seville, 41012, Seville, Spain
| | - Rocío de la Puerta
- Department of Pharmacology, School of Pharmacy, University of Seville, 41012, Seville, Spain
| | - Ana M Quilez
- Department of Pharmacology, School of Pharmacy, University of Seville, 41012, Seville, Spain
| | - Francisco J G Muriana
- Laboratory of Cellular and Molecular Nutrition, Instituto de la Grasa, CSIC, Seville, Spain
| | | | - Beatriz Bermudez
- Department of Pharmacology, School of Pharmacy, University of Seville, 41012, Seville, Spain .
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Triantafyllidis I, Poutahidis T, Taitzoglou I, Kesisoglou I, Lazaridis C, Botsios D. Treatment with Mesna and n-3 polyunsaturated fatty acids ameliorates experimental ulcerative colitis in rats. Int J Exp Pathol 2016; 96:433-43. [PMID: 26852691 DOI: 10.1111/iep.12163] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Accepted: 11/29/2015] [Indexed: 12/17/2022] Open
Abstract
Oxidative damage is a central feature of ulcerative colitis. Here, we tested whether the antioxidant Mesna, when administered alone or in combination with n-3 polyunsaturated fatty acids (n-3 PUFAs), affects the outcome of dextran sodium sulphate (DSS)-induced ulcerative colitis in rats. After the induction of colitis, DSS-treated rats were further treated orally (p.o), intraperitoneally (i.p) or intrarectally (i.r) for either 7 or 14 days with Mesna, n-3 PUFAs or both. Rats were euthanized at the end of each treatment period. Clinical disease activity index was recorded throughout the experiment. At necropsy colorectal gross lesions were scored. Colitis was scored histologically, and the expression of myeloperoxidase (MPO), caspase-3, inducible nitric oxide synthase (iNOS) and nuclear factor κB (NF-κΒ) in colonic tissue was assessed by immunohistochemistry. Mesna alone was sufficient to significantly reduce colorectal tissue damage when administered orally or intraperitoneally. Orally coadministered n-3 PUFAs enhanced this effect, resulting in the significant suppression of DSS colitis after 7 days, and a remarkable recovery of colorectal mucosa was evident after 14 days of treatment. The amelioration of colon pathology co-existed with a significant decrease in MPO expression, overexpression of iNOS and reduction of nuclear NF-κB p65 in inflammatory cells, and the suppression of apoptosis in colonic epithelial cells. The simultaneous administration of Mesna and n-3 PUFAs is particularly effective in ameliorating DSS colitis in rats, by reducing oxidative stress, inflammation and apoptosis, probably through a mechanism that involves the inhibition of NF-κB and overexpression of iNOS.
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Affiliation(s)
| | - Theofilos Poutahidis
- Laboratory of Pathology, Faculty of Health Sciences, School of Veterinary Medicine, Aristotle University, Thessaloniki, Greece
| | - Ioannis Taitzoglou
- Laboratory of Physiology, Faculty of Health Sciences, School of Veterinary Medicine, Aristotle University, Thessaloniki, Greece
| | - Isaak Kesisoglou
- 3rd Department of Surgery, AHEPA University Hospital, Faculty of Health Sciences, School of Medicine, Aristotle University, Thessaloniki, Greece
| | - Charalampos Lazaridis
- 4th Department of Surgery, Papanikolaou University Hospital, Faculty of Health Sciences, School of Medicine, Aristotle University, Thessaloniki, Greece
| | - Dimitrios Botsios
- 4th Department of Surgery, Papanikolaou University Hospital, Faculty of Health Sciences, School of Medicine, Aristotle University, Thessaloniki, Greece
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Pereira PAT, Bini D, Bovo F, Faccioli LH, Monteiro MC. Neutrophils influx and proinflammatory cytokines inhibition by sodium salicylate, unlike aspirin, in Candida albicans-induced peritonitis model. Folia Microbiol (Praha) 2016; 61:337-46. [PMID: 26762336 DOI: 10.1007/s12223-016-0443-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 01/04/2016] [Indexed: 01/15/2023]
Abstract
Sodium salicylate (NaS) and aspirin (ASA) are known to have a variety of effects on microorganisms, such as fungus (C. albicans and C. neoformans), moreover, it have effects in leukocyte adhesion and migration in vitro. In this report, we investigated the effect of ASA and NaS in neutrophil migration and cytokine production in C. albicans-induced peritonitis murine model. For this, mice were treated intraperitoneally (i.p) or orally (po) with NaS or ASA; after they were stimulated i.p. with C. albicans, the cellular migration was evaluated 24 h after stimulation. NaS, in mice treated i.p., unlike ASA, was able to inhibit the neutrophil migration and proinflammatory cytokine production induced by C. albicans, such as TNF-α, IL-1, IFN-γ, IL-12, and IL-10, but did not alter the IL-4 levels in these animals. However, the po treatment with same the dose of NaS or ASA did not affect the influx of this cell for inflammatory site. These results suggest that the NaS inhibits cellular migration and proinflammatory cytokine by different anti-inflammatory mechanism compared to ASA.
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Affiliation(s)
- Priscilla Aparecida Tártari Pereira
- Departamento de Bioquímica e Imunologia, Faculdade de Medicina de Ribeirão Preto, USP-SP, Ribeirão Preto, Brazil.,Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, USP-SP, Ribeirão Preto, Brazil
| | - Daniel Bini
- Departamento de Biologia, Universidade Estadual do Centro-Oeste/UNICENTRO, Guarapuava, PR, Brazil
| | - Fernanda Bovo
- Departamento de Anatomia Patológica, Universidade Federal do Paraná/PR, Paraná, Brazil
| | - Lucia Helena Faccioli
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, USP-SP, Ribeirão Preto, Brazil
| | - Marta Chagas Monteiro
- Pós-graduação em Ciências Farmacêuticas, Pós-graduação em Neurociências e Biologia celular, Faculdade de Farmácia, Instituto de Ciências da Saúde, Universidade Federal do Pará/UFPA, Rua Augusto Correia, Belém, PA, Brazil. .,Endereço: Laboratório de Microbiologia e Imunologia Clínica, Faculdade de Farmácia, Instituto de Ciências da Saúde, Universidade Federal do Pará/UFPA, Rua Augusto Correia, Belém, PA, Brazil.
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