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Abdel-Wahab BA, Ali FEM, Alkahtani SA, Alshabi AM, Mahnashi MH, Hassanein EHM. Hepatoprotective effect of rebamipide against methotrexate-induced hepatic intoxication: role of Nrf2/GSK-3β, NF-κβ-p65/JAK1/STAT3, and PUMA/Bax/Bcl-2 signaling pathways. Immunopharmacol Immunotoxicol 2020; 42:493-503. [PMID: 32865051 DOI: 10.1080/08923973.2020.1811307] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
OBJECTIVES The fact that methotrexate (MTX) is hepatotoxic is an important reason to limit its clinical use. Rebamipide (REB) has antioxidant and anti-inflammatory properties and is useful for the treatment of gastro-duodenal ulcers. This study investigated the impact and protective mechanisms of REB against MTX-induced hepatotoxicity in rats. MATERIALS AND METHODS Animals were divided into four groups of six rats each: a control group, REB group (REB 100 mg/kg/day, orally), MTX control group (20 mg/kg, single i.p.), and MTX + REB group. RESULTS The administration of MTX induced marked hepatic injury in the form of hepatocyte inflammatory swelling, degeneration, apoptosis, and focal necrosis. In parallel, our biochemical investigations revealed a marked hepatic dysfunction associated with the disturbance of the oxidant/antioxidant balance in the group treated with only MTX. Moreover, MTX led to the down-regulation of the hepatic Nrf2 and Bcl-2 expressions along with a marked elevation in the hepatic NF-κβ-p65, GSK-3β, JAK1, STAT3, PUMA, and Bax expressions. On the other hand, co-treatment with REB significantly ameliorated the aforementioned histopathological, biochemical, and molecular defects caused by MTX treatment. CONCLUSION the outcomes of the present study showed REB's ability to protect from hepatic injury induced by MTX, possibly through its antioxidant, anti-inflammatory, and anti-apoptotic properties. These effects could be attributed to REB's ability to modulate, at least in part, the Nrf2/GSK-3β,NF-κβ-p65/JAK1/STAT3, and PUMA/Bax/Bcl-2signaling pathways.
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Affiliation(s)
- Basel A Abdel-Wahab
- Department of Pharmacology, College of Pharmacy, Najran University, Najran, Saudi Arabia.,Department of Medical Pharmacology, College of Medicine, Assiut University, Assiut, Egypt
| | - Fares E M Ali
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Al-Azhar University, Assiut, Egypt
| | - Saad A Alkahtani
- Department of Clinical Pharmacy, College of Pharmacy, Najran University, Najran, Saudi Arabia
| | - Ali M Alshabi
- Department of Clinical Pharmacy, College of Pharmacy, Najran University, Najran, Saudi Arabia
| | - Mater H Mahnashi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University, Najran, Saudi Arabia
| | - Emad H M Hassanein
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Al-Azhar University, Assiut, Egypt
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102
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Kawade N, Murai A, Suzuki W, Takeuchi K, Kondo M, Kobayashi M, Horio F. Ascorbic acid deficiency induces hepatic and intestinal expression of inflammation-related genes irrespective of the presence or absence of gut microbiota in ODS rats. J Nutr Biochem 2020; 86:108485. [PMID: 32828899 DOI: 10.1016/j.jnutbio.2020.108485] [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: 05/02/2020] [Revised: 06/17/2020] [Accepted: 08/05/2020] [Indexed: 11/16/2022]
Abstract
We have previously demonstrated that ascorbic acid (AsA) deficiency causes inflammatory changes in the liver and intestine in Osteogenic Disorder Shionogi (ODS) rats, which are unable to synthesize AsA. We have suggested that AsA deficiency increased intestinal interleukine (IL)-6 production, stimulating hepatic acute phase proteins (APPs) expression via the portal vein. In this study, we determined whether these hepatic and intestinal inflammatory changes by AsA deficiency are induced in germ-free (GF) ODS rats. For 18 days, male specific pathogen-free (SPF) ODS rats were fed the basal diet containing 600 mg AsA/kg (control group) or the AsA-free diet (AsA-deficient group) in SPF conditions, while male GF ODS rats were fed the basal diet (control group) or the AsA-free diet (AsA-deficient group) in GF conditions. Firstly, AsA deficiency significantly elevated the hepatic expression of APPs in both SPF and GF rats. In hepatic mRNA levels of some APPs, significant interaction between GF and AsA-deficiency effects was observed. Secondly, AsA deficiency elevated intestinal IL-6 and IL-1β mRNA levels in both SPF and GF rats, and significant interaction between GF and AsA-deficiency effects was observed in these mRNA levels of jejunum and cecum. In SPF and GF rats, AsA deficiency elevated portal IL-6 concentration. These results show that AsA deficiency caused hepatic and intestinal inflammatory changes in both the GF and SPF ODS rats and indicate that AsA deficiency could directly induce intestinal inflammatory changes without the involvement of gut microbiota.
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Affiliation(s)
- Noe Kawade
- Department of Animal Sciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Atsushi Murai
- Department of Animal Sciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Wakana Suzuki
- Department of Animal Sciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Kenzaburo Takeuchi
- Department of Animal Sciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Makoto Kondo
- Laboratory of Grassland and Animal Feed Production, Graduate School of Bioresources, Mie University, Tsu 514-8507, Japan
| | - Misato Kobayashi
- Department of Animal Sciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Fumihiko Horio
- Department of Animal Sciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan.
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Macchi C, Greco MF, Botta M, Sperandeo P, Dongiovanni P, Valenti L, Cicero AFG, Borghi C, Lupo MG, Romeo S, Corsini A, Magni P, Ferri N, Ruscica M. Leptin, Resistin, and Proprotein Convertase Subtilisin/Kexin Type 9: The Role of STAT3. THE AMERICAN JOURNAL OF PATHOLOGY 2020; 190:2226-2236. [PMID: 32798443 DOI: 10.1016/j.ajpath.2020.07.016] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 07/17/2020] [Accepted: 07/30/2020] [Indexed: 01/13/2023]
Abstract
In a condition of dysfunctional visceral fat depots, as in the case of obesity, alterations in adipokine levels may be detrimental for the cardiovascular system. The proinflammatory leptin and resistin adipokines have been described as possible links between obesity and atherosclerosis. The present study was aimed at evaluating whether proprotein convertase subtilisin/kexin type 9 (PCSK9), a key regulator of low-density lipoprotein metabolism, is induced by leptin and resistin through the involvement of the inflammatory pathway of STAT3. In HepG2 cells, leptin and resistin up-regulated PCSK9 gene and protein expression, as well as the phosphorylation of STAT3. Upon STAT3 silencing, leptin and resistin lost their ability to activate PCSK9. The knockdown of STAT3 did not affect the expression of leptin and resistin receptors or that of PCSK9. The analysis of the human PCSK9 promoter region showed that the two adipokines raised PCSK9 promoter activity via the involvement of a sterol regulatory element motif. In healthy males, a positive association between circulating leptin and PCSK9 levels was found only when the body mass index was <25 kg/m2. In conclusion, this study identified STAT3 as one of the molecular regulators of leptin- and resistin-mediated transcriptional induction of PCSK9.
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Affiliation(s)
- Chiara Macchi
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy.
| | - Maria Francesca Greco
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - Margherita Botta
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - Paola Sperandeo
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - Paola Dongiovanni
- General Medicine and Metabolic Diseases, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Luca Valenti
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy; Translational Medicine, Transfusion Medicine and Hematology, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Arrigo F G Cicero
- Department of Medicine and Surgery Sciences, Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Claudio Borghi
- Department of Medicine and Surgery Sciences, Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Maria Giovanna Lupo
- Department of Pharmaceutical and Pharmacological Sciences, Università degli Studi di Padova, Padova, Italy
| | - Stefano Romeo
- Department of Molecular and Clinical Medicine, University of Gothenburg, Gothenburg, Sweden; Clinical Nutrition Unit, Department of Medical and Surgical Science, Magna Graecia University, Catanzaro, Italy; Department of Cardiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Alberto Corsini
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy; IRCCS MultiMedica, Sesto S. Giovanni, Milan, Italy
| | - Paolo Magni
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy; IRCCS MultiMedica, Sesto S. Giovanni, Milan, Italy
| | - Nicola Ferri
- Department of Pharmaceutical and Pharmacological Sciences, Università degli Studi di Padova, Padova, Italy
| | - Massimiliano Ruscica
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy.
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Chauhan D, Vande Walle L, Lamkanfi M. Therapeutic modulation of inflammasome pathways. Immunol Rev 2020; 297:123-138. [PMID: 32770571 PMCID: PMC7497261 DOI: 10.1111/imr.12908] [Citation(s) in RCA: 133] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 07/09/2020] [Accepted: 07/09/2020] [Indexed: 12/23/2022]
Abstract
Inflammasomes are macromolecular complexes formed in response to pathogen‐associated molecular patterns (PAMPs) and danger‐associated molecular patterns (DAMPs) that drive maturation of the pro‐inflammatory cytokines interleukin (IL)‐1β and IL‐18, and cleave gasdermin D (GSDMD) for induction of pyroptosis. Inflammasomes are highly important in protecting the host from various microbial pathogens and sterile insults. Inflammasome pathways are strictly regulated at both transcriptional and post‐translational checkpoints. When these checkpoints are not properly imposed, undue inflammasome activation may promote inflammatory, metabolic and oncogenic processes that give rise to autoinflammatory, autoimmune, metabolic and malignant diseases. In addition to clinically approved IL‐1‐targeted biologics, upstream targeting of inflammasome pathways recently gained interest as a novel pharmacological strategy for selectively modulating inflammasome activation in pathological conditions.
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Affiliation(s)
- Dhruv Chauhan
- Janssen Immunosciences, World Without Disease Accelerator, Pharmaceutical Companies of Johnson & Johnson, Beerse, Belgium
| | - Lieselotte Vande Walle
- Laboratory of Medical Innate Immunity, Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Mohamed Lamkanfi
- Laboratory of Medical Innate Immunity, Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
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Meszaros M, Meunier L, Morquin D, Klouche K, Fesler P, Malezieux E, Makinson A, Le Moing V, Reynes J, Pageaux G. Abnormal liver tests in patients hospitalized with Coronavirus disease 2019: Should we worry? Liver Int 2020; 40:1860-1864. [PMID: 32495496 PMCID: PMC7300742 DOI: 10.1111/liv.14557] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 05/23/2020] [Accepted: 05/30/2020] [Indexed: 01/08/2023]
Abstract
While several studies from China have reported COVID-19-related liver injury, there are currently no data on liver dysfunction in hospitalized COVID-19 patients in Europe. The aim of this study was to describe the prevalence and predictive value of abnormal liver function in patients hospitalized with COVID-19. This was a retrospective cohort study of confirmed COVID-19 patients hospitalized in two referral hospitals in France. Clinical, biological and radiological data were collected and analysed. In all, 234 patients confirmed to have COVID-19 by RT-PCR were included. Liver function was abnormal in 66.6% of patients on admission. In multivariate logistic regression, abnormal liver test on admission were associated with in-hospital aggravation (OR = 4.1, 95% CI 1.5-10.8; P = .004) and mortality (OR 3.3; 95% CI = 1.04-10.5; P = .04). This study of liver tests in a European COVID-19 population confirms a high prevalence of abnormal liver tests on admission that are predictive of severe disease course and higher in-hospital mortality.
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Affiliation(s)
- Magdalena Meszaros
- Department of Hepatology, Gastroenterology and Liver TransplantationMontpellier University HospitalUniversity of MontpellierMontpellierFrance
- Department of Gastroenterology and HepatologyNarbonne HospitalNarbonneFrance
| | - Lucy Meunier
- Department of Hepatology, Gastroenterology and Liver TransplantationMontpellier University HospitalUniversity of MontpellierMontpellierFrance
| | - David Morquin
- Department of Infectious DiseasesMontpellier University HospitalUniversity of MontpellierMontpellierFrance
| | - Kada Klouche
- Department of Intensive Care LapeyronieMontpellier University HospitalUniversity of MontpellierMontpellierFrance
| | - Pierre Fesler
- Department of Internal Medicine LapeyronieMontpellier University HospitalUniversity of MontpellierMontpellierFrance
| | - Emilie Malezieux
- Department of Hepatology, Gastroenterology and Liver TransplantationMontpellier University HospitalUniversity of MontpellierMontpellierFrance
| | - Alain Makinson
- Department of Infectious DiseasesMontpellier University HospitalUniversity of MontpellierMontpellierFrance
| | - Vincent Le Moing
- Department of Infectious DiseasesMontpellier University HospitalUniversity of MontpellierMontpellierFrance
| | - Jacques Reynes
- Department of Infectious DiseasesMontpellier University HospitalUniversity of MontpellierMontpellierFrance
| | - Georges‐Philippe Pageaux
- Department of Hepatology, Gastroenterology and Liver TransplantationMontpellier University HospitalUniversity of MontpellierMontpellierFrance
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Epigenetic Modulation by Apabetalone Counters Cytokine-Driven Acute Phase Response In Vitro, in Mice and in Patients with Cardiovascular Disease. Cardiovasc Ther 2020; 2020:9397109. [PMID: 32821285 PMCID: PMC7416228 DOI: 10.1155/2020/9397109] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 07/06/2020] [Indexed: 12/19/2022] Open
Abstract
Chronic systemic inflammation contributes to cardiovascular disease (CVD) and correlates with the abundance of acute phase response (APR) proteins in the liver and plasma. Bromodomain and extraterminal (BET) proteins are epigenetic readers that regulate inflammatory gene transcription. We show that BET inhibition by the small molecule apabetalone reduces APR gene and protein expression in human hepatocytes, mouse models, and plasma from CVD patients. Steady-state expression of serum amyloid P, plasminogen activator inhibitor 1, and ceruloplasmin, APR proteins linked to CVD risk, is reduced by apabetalone in cultured hepatocytes and in humanized mouse liver. In cytokine-stimulated hepatocytes, apabetalone reduces the expression of C-reactive protein (CRP), alpha-2-macroglobulin, and serum amyloid P. The latter two are also reduced by apabetalone in the liver of endotoxemic mice. BET knockdown in vitro also counters cytokine-mediated induction of the CRP gene. Mechanistically, apabetalone reduces the cytokine-driven increase in BRD4 BET occupancy at the CRP promoter, confirming that transcription of CRP is BET-dependent. In patients with stable coronary disease, plasma APR proteins CRP, IL-1 receptor antagonist, and fibrinogen γ decrease after apabetalone treatment versus placebo, resulting in a predicted downregulation of the APR pathway and cytokine targets. We conclude that CRP and components of the APR pathway are regulated by BET proteins and that apabetalone counters chronic cytokine signaling in patients.
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107
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George MJ, Kleveland O, Garcia‐Hernandez J, Palmen J, Lovering R, Wiseth R, Aukrust P, Engmann J, Damås JK, Hingorani AD, Gullestad L, Casas JP, Ueland T. Novel Insights Into the Effects of Interleukin 6 Antagonism in Non-ST-Segment-Elevation Myocardial Infarction Employing the SOMAscan Proteomics Platform. J Am Heart Assoc 2020; 9:e015628. [PMID: 32515246 PMCID: PMC7429051 DOI: 10.1161/jaha.119.015628] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 04/14/2020] [Indexed: 12/15/2022]
Abstract
Background Interleukin 6 concentration is associated with myocardial injury, heart failure, and mortality after myocardial infarction. In the Norwegian tocilizumab non-ST-segment-elevation myocardial infarction trial, the first randomized trial of interleukin 6 blockade in myocardial infarction, concentration of both C-reactive protein and troponin T were reduced in the active treatment arm. In this follow-up study, an aptamer-based proteomic approach was employed to discover additional plasma proteins modulated by tocilizumab treatment to gain novel insights into the effects of this therapeutic approach. Methods and Results Plasma from percutaneous coronary intervention-treated patients, 24 in the active intervention and 24 in the placebo-control arm, drawn 48 hours postrandomization were randomly selected for analysis with the SOMAscan assay. Employing slow off-rate aptamers, the relative abundance of 1074 circulating proteins was measured. Proteins identified as being significantly different between groups were subsequently measured by enzyme immunoassay in the whole trial cohort (117 patients) at all time points (days 1-3 [7 time points] and 3 and 6 months). Five proteins identified by the SOMAscan assay, and subsequently confirmed by enzyme immunoassay, were significantly altered by tocilizumab administration. The acute-phase proteins lipopolysaccharide-binding protein, hepcidin, and insulin-like growth factor-binding protein 4 were all reduced during the hospitalization phase, as was the monocyte chemoattractant C-C motif chemokine ligand 23. Proteinase 3, released primarily from neutrophils, was significantly elevated. Conclusions Employing the SOMAscan aptamer-based proteomics platform, 5 proteins were newly identified that are modulated by interleukin 6 antagonism and may mediate the therapeutic effects of tocilizumab in non-ST-segment-elevation myocardial infarction.
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Affiliation(s)
- Marc J. George
- Department of Clinical PharmacologyUniversity College LondonLondonUnited Kingdom
| | - Ola Kleveland
- Clinic of CardiologySt Olavs HospitalTrondheimNorway
- Department of Circulation and Medical ImagingNorwegian University of Science and Technology NTNUTrondheimNorway
| | - Jorge Garcia‐Hernandez
- Centre for Cardiovascular GeneticsInstitute of Cardiovascular ScienceUniversity College LondonLondonUnited Kingdom
| | - Jutta Palmen
- Centre for Cardiovascular GeneticsInstitute of Cardiovascular ScienceUniversity College LondonLondonUnited Kingdom
| | - Ruth Lovering
- Functional Gene Annotation, Preclinical and Fundamental ScienceInstitute of Cardiovascular ScienceUniversity College LondonLondonUnited Kingdom
| | - Rune Wiseth
- Clinic of CardiologySt Olavs HospitalTrondheimNorway
- Department of Circulation and Medical ImagingNorwegian University of Science and Technology NTNUTrondheimNorway
| | - Pål Aukrust
- K.G. Jebsen Thrombosis Research and Expertise CenterUniversity of TromsøTromsøNorway
- Research Institute of Internal MedicineOslo University Hospital RikshospitaletOsloNorway
- Institute of Clinical MedicineUniversity of OsloNorway
- K.G. Jebsen Centre of Inflammatory ResearchUniversity of OsloNorway
- Section of Clinical Immunology and Infectious DiseasesOslo University Hospital RikshospitaletOsloNorway
| | - Jorgen Engmann
- Centre for Cardiovascular GeneticsInstitute of Cardiovascular ScienceUniversity College LondonLondonUnited Kingdom
| | - Jan Kristian Damås
- Centre of Molecular Inflammation ResearchDepartment of Clinical and Molecular MedicineNTNUTrondheimNorway
- Department of Infectious DiseasesSt Olav’s HospitalTrondheim University HospitalTrondheimNorway
| | - Aroon D. Hingorani
- Centre for Cardiovascular GeneticsInstitute of Cardiovascular ScienceUniversity College LondonLondonUnited Kingdom
| | - Lars Gullestad
- Institute of Clinical MedicineUniversity of OsloNorway
- Department of CardiologyOslo University Hospital RikshospitaletOsloNorway
- K.G. Jebsen Cardiac Research Centre and Centre for Heart Failure ResearchUniversity of OsloNorway
| | - Juan P. Casas
- Institute of Health InformaticsUniversity College LondonLondonUnited Kingdom
- Massachusetts Veterans Epidemiology Research and Information Center (MAVERIC)BostonMA
| | - Thor Ueland
- K.G. Jebsen Thrombosis Research and Expertise CenterUniversity of TromsøTromsøNorway
- Research Institute of Internal MedicineOslo University Hospital RikshospitaletOsloNorway
- Institute of Clinical MedicineUniversity of OsloNorway
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Hou T, Guo T, Nie R, Hong D, Zhou Z, Zhang X, Liang Y. The prognostic role of the preoperative systemic immune-inflammation index and high-sensitivity modified Glasgow prognostic score in patients after radical operation for soft tissue sarcoma. Eur J Surg Oncol 2020; 46:1496-1502. [PMID: 32576479 DOI: 10.1016/j.ejso.2020.05.026] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 05/20/2020] [Accepted: 05/28/2020] [Indexed: 02/07/2023] Open
Abstract
INTRODUCTION The prognostic values of nutritional and immune-inflammatory indicators in non-metastatic soft tissue sarcoma (STS) patients are not clear. We investigated the utility of systemic immune-inflammation index (SII) and the high-sensitivity modified Glasgow prognostic score (Hs-mGPS) in the prediction of STS patient's prognosis. MATERIALS AND METHODS Patients admitted between January 2000 and December 2016, who underwent R0 resection for STS at SYSUCC were carefully retrospectively reviewed, and 454 patients were enrolled. The laboratory data and clinical data were collected from the patient's record. ROC analysis is used to determine the optimal cutoff value. Survival curves were analysed by Kaplan-Meier method. Cox proportional hazard model was used to find out prognostic variables. RESULTS Increased SII and Hs-mGPS values were significantly related to larger tumour size, deep tumour location, higher tumour grade and more advanced American Joint Committee on Cancer (AJCC) stage. Patients with an elevated SII had a shorter median survival time and a lower 5-year OS rate than those with a low SII. And patients with low Hs-mGPS had longer median OS and DFS. Multivariate analysis revealed that both the SII and the Hs-mGPS were independent predictive indicators for OS. And a joint model containing both the Hsm-GPS and the SII appeared to have the strongest predictive ability. CONCLUSION Our findings indicated that malnutrition and systemic inflammation are risk factors for the survival of STS patients after operation, and early recognition and intervention of malnutrition and systemic inflammation may help to improve the survival of the patients.
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Affiliation(s)
- Tao Hou
- Department of Oncology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Tianhui Guo
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China; Department of Medical Melanoma and Sarcoma, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Runcong Nie
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China; Department of Gastric Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Dongchun Hong
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China; Department of Medical Melanoma and Sarcoma, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Zhiwei Zhou
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China; Department of Gastric Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Xing Zhang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China; Department of Medical Melanoma and Sarcoma, Sun Yat-sen University Cancer Center, Guangzhou, China.
| | - Yao Liang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China; Department of Gastric Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China.
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109
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Sachetto ATA, Jensen JR, Santoro ML. Liver gene regulation of hemostasis-related factors is altered by experimental snake envenomation in mice. PLoS Negl Trop Dis 2020; 14:e0008379. [PMID: 32479494 PMCID: PMC7289449 DOI: 10.1371/journal.pntd.0008379] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 06/11/2020] [Accepted: 05/09/2020] [Indexed: 12/30/2022] Open
Abstract
Few studies have addressed gene expression of hemostasis-related factors during acute thrombo-hemorrhagic diseases. Bites by the lanced-headed viper Bothrops jaracaca induce rapid hemostatic disturbances in victims, leading to systemic bleedings, thrombocytopenia and consumption coagulopathy. Although circulating levels of coagulation factors recover rapidly after administration of specific antivenom therapy, it is unclear if B. jararaca venom (BjV) upregulates the mRNA synthesis of hepatic hemostasis-related factors, or if the recovery occurs under basal conditions after the neutralization of venom components by antivenom. Thus, we aimed to investigate if BjV regulates gene expression of important hemostasis-related factors synthetized by the liver. On that account, Swiss mice were injected with saline or BjV (1.6 mg/kg b.w, s.c.), and after 3, 6 and 24 h blood samples and liver fragments were collected to analyze mRNA expression by real-time qPCR. Increased gene expression of fibrinogen chains, haptoglobin and STAT3 was observed during envenomation, particularly at 3 and 6 h. At 24h, mRNA levels of F10 were raised, while those of Serpinc1, Proc and Adamts13 were diminished. Surprisingly, F3 mRNA levels were steadily decreased at 3 h. Gene expression of Thpo, F7, F5 Tfpi, Mug1 was unaltered. mRNA levels of Vwf, P4hb, F8, F2, Plg, and Serpinf2 were minimally altered, but showed important associations with Nfkb1 gene expression. In conclusion, snakebite envenomation upregulates hepatic mRNA synthesis particularly of fibrinogen chains, and acute-phase markers. This response explains the fast recovery of fibrinogen levels after antivenom administration to patients bitten by B. jararaca snakes.
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Affiliation(s)
- Ana Teresa Azevedo Sachetto
- Laboratory of Pathophysiology, Butantan Institute, São Paulo, São Paulo, Brazil
- Department of Medical Sciences, School of Medicine, University of São Paulo, São Paulo, São Paulo, Brazil
| | - José Ricardo Jensen
- Laboratory of Immunogenetics, Butantan Institute, São Paulo, São Paulo, Brazil
| | - Marcelo Larami Santoro
- Laboratory of Pathophysiology, Butantan Institute, São Paulo, São Paulo, Brazil
- Department of Medical Sciences, School of Medicine, University of São Paulo, São Paulo, São Paulo, Brazil
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Gehrke N, Schattenberg JM. Metabolic Inflammation-A Role for Hepatic Inflammatory Pathways as Drivers of Comorbidities in Nonalcoholic Fatty Liver Disease? Gastroenterology 2020; 158:1929-1947.e6. [PMID: 32068022 DOI: 10.1053/j.gastro.2020.02.020] [Citation(s) in RCA: 108] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 02/05/2020] [Accepted: 02/11/2020] [Indexed: 02/06/2023]
Abstract
Nonalcoholic fatty liver disease (NAFLD) is a global and growing health concern. Emerging evidence points toward metabolic inflammation as a key process in the fatty liver that contributes to multiorgan morbidity. Key extrahepatic comorbidities that are influenced by NAFLD are type 2 diabetes, cardiovascular disease, and impaired neurocognitive function. Importantly, the presence of nonalcoholic steatohepatitis and advanced hepatic fibrosis increase the risk for systemic comorbidity in NAFLD. Although the precise nature of the crosstalk between the liver and other organs has not yet been fully elucidated, there is emerging evidence that metabolic inflammation-in part, emanating from the fatty liver-is the engine that drives cellular dysfunction, cell death, and deleterious remodeling within various body tissues. This review describes several inflammatory pathways and mediators that have been implicated as links between NAFLD and type 2 diabetes, cardiovascular disease, and neurocognitive decline.
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Affiliation(s)
- Nadine Gehrke
- Metabolic Liver Research Program, I. Department of Medicine, University Medical Center, Mainz, Germany.
| | - Jörn M Schattenberg
- Metabolic Liver Research Program, I. Department of Medicine, University Medical Center, Mainz, Germany
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Zhang Y, Ma C, Wang Z, Zhou Q, Sun S, Ma P, Lv L, Jiang X, Wang X, Zhan L. Large-sized graphene oxide synergistically enhances parenchymal hepatocyte IL-6 expression monitored by dynamic imaging. NANOSCALE 2020; 12:8147-8158. [PMID: 32236244 DOI: 10.1039/c9nr10713d] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Graphene oxides (GOs) have received significant attention as emerging biomedical materials due to their special properties. The application of GOs in biological systems has raised considerable concern about their hepatotoxicity, however their biological effects on parenchymal hepatocytes remain unclear, despite the fact that GOs have shown size-dependent interactions with immunocytes in the liver. Herein we chose pleiotropic cytokine IL-6 as the model parameter to investigate inflammation responses upon exposure to GOs. An early and sensitive reporter mouse model was constructed, allowing non-invasive and longitudinal imaging of parenchymal hepatocyte IL-6 expressions. GOs of various lateral dimensions were assessed by using the reporter mice. The results demonstrated that large-sized GOs (L-GO) induced much stronger IL-6 activation. A detailed analysis uncovered that L-GO induced ROS production and TLR-4 activation promoted macrophage polarization and secretion of pro-inflammatory cytokines IL-1β and TNF-α, activated via> the NF-κB signaling pathway, which in turn initiated the expression of IL-6 in hepatocytes. These in-depth investigations are expected to help modulate the inflammatory responses involved in hepatotoxicity and provide extended information to design sub-hepatic distribution and cell subset targeting by controlling the nanoparticle sizes.
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Affiliation(s)
- Yulong Zhang
- Institute of Health Service and Transfusion Medicine, Beijing 100850, P. R. China.
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Zuo H, Weng K, Luo M, Yang L, Weng S, He J, Xu X. A MicroRNA-1–Mediated Inhibition of the NF-κB Pathway by the JAK-STAT Pathway in the Invertebrate Litopenaeus vannamei. THE JOURNAL OF IMMUNOLOGY 2020; 204:2918-2930. [DOI: 10.4049/jimmunol.2000071] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 03/25/2020] [Indexed: 12/20/2022]
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Abstract
PURPOSE Tocilizumab, a monoclonal antibody directed against the IL-6 receptor, might block detrimental effects of IL-6 on transplantation. IL-6 plays a considerable role in cytokine storm after stem cell transplantation as well as graft versus host disease, and it has also been shown to be involved in solid organ allograft rejection; therefore, tocilizumab is expected to promote graft survival. Nonetheless, due to the small number of studies and disparate methods of drug administration and outcome evaluation, for which types of transplantation, at which stages, and to what extent tocilizumab could be applied remains to be defined. METHODS The Pubmed, SCOPUS and Google Scholar search engines were used to collect data. The keywords were determined by Pubmed MeSH. No time limitation was set and all types of articles were allowed. RESULTS: According to the potential of Tocilozumab in controlling both cellular and humoral immunity it could be considered as a promising agent in tolerance induction; however, blocking IL-6 signaling might result in augmented infection rate in recipients. CONCLUSION The need for providing effective and safe immunosuppressive agents to protect transplanted cells and organs against allo-reactivity urges the collection and discussion of all available findings about inhibition of determining immune components including cytokines; herein, we have summarized the clinical consequences of blocking IL-6 by tocilizumab in stem cell and solid organ transplantations.
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Mohd MA, Ahmad Norudin NA, Muhammad TST. Transcriptional regulation of retinol binding protein 4 by Interleukin-6 via peroxisome proliferator-activated receptor α and CCAAT/Enhancer binding proteins. Mol Cell Endocrinol 2020; 505:110702. [PMID: 31927097 DOI: 10.1016/j.mce.2020.110702] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 01/06/2020] [Accepted: 01/07/2020] [Indexed: 01/17/2023]
Abstract
Interleukin-6 (IL-6) is a major mediator of the acute phase response (APR) that regulates the transcription of acute phase proteins (APPs) in the liver. During APR, the plasma levels of negative APPs including retinol binding protein 4 (RBP4) are reduced. Activation of the IL-6 receptor and subsequent signaling pathways leads to the activation of transcription factors, including peroxisome proliferator-activated receptor alpha (PPARα) and CCAAT/enhancer binding protein (C/EBP), which then modulate APP gene expression. The transcriptional regulation of RBP4 by IL-6 is not fully understood. Therefore, this study aimed to elucidate the molecular mechanisms of PPARα and C/EBP isoforms in mediating IL-6 regulation of RBP4 gene expression. IL-6 was shown to reduce the transcriptional activity of RBP4, and functional dissection of the RBP4 promoter further identified the cis-acting regulatory elements that are responsible in mediating the inhibitory effect of IL-6. The binding sites for PPARα and C/EBP present in the RBP4 promoter were predicted at -1079 bp to -1057 bp and -1460 bp to -1439 bp, respectively. The binding of PPARα and C/EBPs to their respective cis-acting elements may lead to antagonistic interactions that modulate the IL-6 regulation of RBP4 promoter activity. Therefore, this study proposed a new mechanism of interaction involving PPARα and different C/EBP isoforms. This interaction is necessary for the regulation of RBP4 gene expression in response to external stimuli, particularly IL-6, during physiological changes.
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Affiliation(s)
- Muzaida Aminah Mohd
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, 21030, Kuala Terengganu, Terengganu, Malaysia
| | - Nur Adelina Ahmad Norudin
- Malaysian Institute of Pharmaceuticals and Nutraceuticals, National Institutes of Biotechnology Malaysia, Block 5-A, Halaman Bukit Gambir, 11700, Gelugor, Penang, Malaysia
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Zhang SC, Wang MY, Feng JR, Chang Y, Ji SR, Wu Y. Reversible promoter methylation determines fluctuating expression of acute phase proteins. eLife 2020; 9:51317. [PMID: 32223889 PMCID: PMC7136028 DOI: 10.7554/elife.51317] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Accepted: 03/27/2020] [Indexed: 12/15/2022] Open
Abstract
Acute phase reactants (APRs) are secretory proteins exhibiting large expression changes in response to proinflammatory cytokines. Here we show that the expression pattern of a major human APR, that is C-reactive protein (CRP), is casually determined by DNMT3A and TET2-tuned promoter methylation status. CRP features a CpG-poor promoter with its CpG motifs located in binding sites of STAT3, C/EBP-β and NF-κB. These motifs are highly methylated at the resting state, but undergo STAT3- and NF-κB-dependent demethylation upon cytokine stimulation, leading to markedly enhanced recruitment of C/EBP-β that boosts CRP expression. Withdrawal of cytokines, by contrast, results in a rapid recovery of promoter methylation and termination of CRP induction. Further analysis suggests that reversible methylation also regulates the expression of highly inducible genes carrying CpG-poor promoters with APRs as representatives. Therefore, these CpG-poor promoters may evolve CpG-containing TF binding sites to harness dynamic methylation for prompt and reversible responses.
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Affiliation(s)
- Shi-Chao Zhang
- MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Ming-Yu Wang
- MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Jun-Rui Feng
- MOE Key Laboratory of Environment and Genes Related to Diseases, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, China
| | - Yue Chang
- MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Shang-Rong Ji
- MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Yi Wu
- MOE Key Laboratory of Environment and Genes Related to Diseases, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, China
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Sánchez-Sánchez MA, Zepeda-Morales ASM, Carrera-Quintanar L, Viveros-Paredes JM, Franco-Arroyo NN, Godínez-Rubí M, Ortuño-Sahagun D, López-Roa RI. Alliin, an Allium sativum Nutraceutical, ReducesMetaflammation Markers in DIO Mice. Nutrients 2020; 12:nu12030624. [PMID: 32120804 PMCID: PMC7146142 DOI: 10.3390/nu12030624] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 02/22/2020] [Accepted: 02/25/2020] [Indexed: 02/06/2023] Open
Abstract
Obesity generates a chronic low-grade inflammatory state which promotes oxidative stress and triggers comorbidities. Alliin is the main organosulfur compound in garlic and has been shown to induce a decrease in the expression of proinflammatory cytokines; its systemic effect on metabolic parameters and adipose tissue is not yet known, however. After nine weeks of HFD and with obesity established in C57BL/6 mice, we observed that a daily treatment with alliin for 3.5 weeks (15 mg/kg) did not affect body weight, but significantly improved insulin sensitivity and glucose tolerance, both evaluated through a blood glucose monitoring system. Once alliin treatment was completed, serum, adipose tissue, and organs of interest related to metabolism were removed for further analysis. We observed that alliin significantly decreased the size of adipocytes from epididymal adipose tissue, evaluated via microscopy. A decrease in gene expression and serum protein levels of the adipocytokines leptin and resistin, as well as decreased serum IL-6 concentration, were detected by qRT-PCR and ELISA, respectively. It did not, however, affect mRNA expression of antioxidant enzymes in the liver. Taken altogether, these results indicate that treatment with alliin reduces metaflammation markers in DIO mice and improves some metabolic parameters without affecting others.
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Affiliation(s)
- Marina A. Sánchez-Sánchez
- Laboratorio de Neuroinmunobiología Molecular, Instituto de Investigación en Ciencias Biomédicas (IICB) CUCS, Universidad de Guadalajara, Guadalajara Jalisco 44340, Mexico;
- Laboratorio de Investigación y Desarrollo Farmacéutico, CUCEI, Universidad de Guadalajara, Guadalajara Jalisco 44430, Mexico; (A.S.M.Z.-M.); (J.M.V.-P.); (N.N.F.-A.)
| | - Adelaida Sara Minia Zepeda-Morales
- Laboratorio de Investigación y Desarrollo Farmacéutico, CUCEI, Universidad de Guadalajara, Guadalajara Jalisco 44430, Mexico; (A.S.M.Z.-M.); (J.M.V.-P.); (N.N.F.-A.)
| | - Lucrecia Carrera-Quintanar
- Laboratorio de Ciencias de los Alimentos, Departamento de Reproducción Humana, Crecimiento y Desarrollo Infantil, CUCS, Universidad de Guadalajara, Guadalajara Jalisco 44340, Mexico;
| | - Juan Manuel Viveros-Paredes
- Laboratorio de Investigación y Desarrollo Farmacéutico, CUCEI, Universidad de Guadalajara, Guadalajara Jalisco 44430, Mexico; (A.S.M.Z.-M.); (J.M.V.-P.); (N.N.F.-A.)
| | - Noel Noé Franco-Arroyo
- Laboratorio de Investigación y Desarrollo Farmacéutico, CUCEI, Universidad de Guadalajara, Guadalajara Jalisco 44430, Mexico; (A.S.M.Z.-M.); (J.M.V.-P.); (N.N.F.-A.)
| | - Marisol Godínez-Rubí
- Laboratorio de Investigación en Patología, Departamento de Microbiología y Patología, CUCS, Universidad de Guadalajara, Guadalajara Jalisco 44340, Mexico;
| | - Daniel Ortuño-Sahagun
- Laboratorio de Neuroinmunobiología Molecular, Instituto de Investigación en Ciencias Biomédicas (IICB) CUCS, Universidad de Guadalajara, Guadalajara Jalisco 44340, Mexico;
- Correspondence: (D.O.-S.); (R.I.L.-R.); Tel.: +52-33-1058-5200 (ext. 33742) (D.O.-S.); +52-33-137-85900 (ext. 27778) (R.I.L.-R.)
| | - Rocío Ivette López-Roa
- Laboratorio de Investigación y Desarrollo Farmacéutico, CUCEI, Universidad de Guadalajara, Guadalajara Jalisco 44430, Mexico; (A.S.M.Z.-M.); (J.M.V.-P.); (N.N.F.-A.)
- Correspondence: (D.O.-S.); (R.I.L.-R.); Tel.: +52-33-1058-5200 (ext. 33742) (D.O.-S.); +52-33-137-85900 (ext. 27778) (R.I.L.-R.)
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Li Y, Song J, Xie Z, Liu M, Sun K. Long noncoding RNA colorectal neoplasia differentially expressed alleviates sepsis-induced liver injury via regulating miR-126-5p. IUBMB Life 2020; 72:440-451. [PMID: 32031750 DOI: 10.1002/iub.2230] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 01/04/2020] [Indexed: 02/06/2023]
Abstract
In this study, we intended to determine the detailed function and mechanism of long noncoding RNA (lncRNA) colorectal neoplasia differentially expressed (CRNDE) in liver injury induced by sepsis. Cecal ligation and perforation (CLP) models were adopted to induce sepsis in vivo with rats, and hepatic epithelial cells L02 were treated with lipopolysaccharide (LPS) to mimic sepsis in vitro. Enzyme-linked immunosorbent assay was conducted to detect the levels of tumor necrosis factor (TNF-α), interleukin-6 (IL-6), interleukin-10 (IL-10), and interferon-γ (IFN-γ) in the serum of rats. Quantitative real-time polymerase chain reaction (qRT-PCR) was performed to measure the expressions of CRNDE and microRNA-126-5p (miR-126-5p). Flow cytometry analysis and Cell Counting Kit-8 (CCK-8) method were carried out followed by the up- or downregulation of CRNDE and miR-126-5p to monitor the proliferation and apoptosis of L02 cells, respectively. Western blot was then applied to determine the expressions of cysteinyl aspartate specific proteinase 3 (caspase 3), poly(ADP-ribose)polymerase (PARP), cytochrome c, and BCL2-like 2 (BCL2L2). The interactions between CRNDE with miR-126-5p and miR-126-5p with BCL2L2 were determined through bioinformatics, qRT-PCR, dual luciferase reporter assay, and RNA immunoprecipitation assay. CRNDE was significantly decreased in liver tissues and hepatic cells in sepsis models. Upregulation of CRNDE promoted the viability of L02 cells and inhibited their apoptosis, while downregulation of CRNDE had opposite effects. The expression of CRNDE in liver tissues of septic rats was correlated with the expression miR-126-5p. It was also demonstrated that the transfection of miR-126-5p mimics reversed the inhibitory effect induced by CRNDE on apoptosis of L02 cells. CRNDE could specifically bind to miR-126-5p and reduce its expression, in turn promote the expression of BCL2L2. Additionally, CRNDE overexpression in rats ameliorated liver injury induced by sepsis. Downregulated CRNDE aggravates hepatic injury via regulating miR-126-5p and BCL2L2 during sepsis.
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Affiliation(s)
- Yang Li
- Department of Emergency, Minhang Hospital, Fudan University, Shanghai, China
| | | | - Zichen Xie
- Department of Emergency, Minhang Hospital, Fudan University, Shanghai, China
| | - Mei Liu
- Department of Emergency, Minhang Hospital, Fudan University, Shanghai, China
| | - Keyu Sun
- Department of Emergency, Minhang Hospital, Fudan University, Shanghai, China
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Affiliation(s)
| | - Javid Moslehi
- Division of Cardiovascular MedicineClinical PharmacologyCardio‐Oncology ProgramVanderbilt University Medical Center and Vanderbilt‐Ingram Cancer CenterNashvilleTN
- Division of OncologyVanderbilt University Medical Center and Vanderbilt‐Ingram Cancer CenterNashvilleTN
| | - Rudolf A. de Boer
- Department of CardiologyUniversity Medical Center GroningenUniversity of Groningenthe Netherlands
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Milajerdi A, Sadeghi A, Mousavi SM, Larijani B, Esmaillzadeh A. Influence of Statins on Circulating Inflammatory Cytokines in Patients With Abnormal Glucose Homeostasis: A Meta-analysis of Data From Randomized Controlled Trials. Clin Ther 2020; 42:e13-e31. [PMID: 31955966 DOI: 10.1016/j.clinthera.2019.12.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 10/27/2019] [Accepted: 12/15/2019] [Indexed: 01/01/2023]
Abstract
PURPOSE Chronic inflammation increases the risks for cardiovascular disease, type 2 diabetes, and cancer. Recently, the antiinflammatory effects of statins, as cholesterol-lowering medications, have been considered. This study systematically reviewed and summarized earlier findings from randomized clinical trials about the effects of statins on serum concentrations of C-reactive protein (CRP) and interleukin (IL)-6 in patients with abnormal glucose homeostasis. METHODS Relevant articles published through October 2019 were searched using suitable key words on the PubMed/MEDLINE, SCOPUS, EMBASE, and Google Scholar databases. RCTs were included if they compared the effects of statins on serum concentrations of CRP and IL-6 in adults with abnormal glucose homeostasis. The effect sizes were represented as weighted mean differences (WMDs) and 95% CI s using a random-effects model. Subgroup analysis was performed to find possible sources of heterogeneity. FINDINGS Overall, 17 publications with 21 effect sizes and which enrolled 3766 subjects (1895 participants in intervention and 1871 in control groups) were included. Combining 13 effect sizes from 10 studies, a significant reduction in serum CRP concentration following the administration of atorvastatin was found (WMD, -0.35; 95% CI, -0.54 to -0.17; I2 = 90.6%). Based on 5 effect sizes from 4 studies, we found a statistically significant reduction in serum IL-6 concentration after atorvastatin therapy (WMD, -0.44; 95% CI, -0.65 to -0.22; I2 = 93.9%). Pooling 6 effect sizes from 5 studies revealed a significantly reduced serum concentration of CRP after simvastatin therapy (WMD, -0.66; 95% CI, -0.79 to -0.54; I2 = 97.6%). IMPLICATIONS The administration of atorvastatin or simvastatin in patients with abnormal glucose hemostasis was associated with a reduced serum CRP concentration. Atorvastatin therapy might also help to decrease serum IL-6 concentration in these patients.
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Affiliation(s)
- Alireza Milajerdi
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran; Students' Scientific Research Center (SSRC), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Alireza Sadeghi
- Students' Scientific Research Center (SSRC), Tehran University of Medical Sciences (TUMS), Tehran, Iran; Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Mohammad Mousavi
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Esmaillzadeh
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran; Obesity and Eating Habits Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran; Food Security Research Center, Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran.
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Gai X, Zhou P, Xu M, Liu Z, Zheng X, Liu Q. Hyperactivation of IL-6/STAT3 pathway leaded to the poor prognosis of post-TACE HCCs by HIF-1α/SNAI1 axis-induced epithelial to mesenchymal transition. J Cancer 2020; 11:570-582. [PMID: 31942180 PMCID: PMC6959052 DOI: 10.7150/jca.35631] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 08/18/2019] [Indexed: 02/07/2023] Open
Abstract
Transarterial chemoembolization (TACE) has been considered the standard treatment for intermediate-stage hepatocellular carcinoma according to BCLC algorithm. However, it has been unclear about the TACE-related predictive bio-markers and underlying molecular mechanisms. This investigation revealed that HCCs with higher HIF-1α suffered from unfavorable OS after TACE. mRNA expression microarray revealed that HIF-1α was potential target of p-STAT3 which was verified by ChIP and immunoblotting assay. Activation of IL-6/STAT3/HIF-1α signaling was found to promote EMT and chemoresistance to Doxorubicin in vitro and in vivo by regulating SNAI1. Hypoxia did not enhance HIF-1α expression and influence cell growth and chemoresistence to Doxorubicin in HCC cells when STAT3 expression was abolished. Taken together, HIF-1α overexpression in HCC tissues predicted the unfavorable outcome of HCCs after TACE and IL-6/STAT3 pathway resulted in EMT induced-metastases and chemoresistance of HCC after TACE through HIF-1α/SNAI1 axis.
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Affiliation(s)
- Xiaohong Gai
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Peng Zhou
- Department of General Surgery, Xian NO.3 Hospital, Xi'an, Shaanxi 710001, China
| | - Meng Xu
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Zhikui Liu
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Xin Zheng
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Qingguang Liu
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
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Róka B, Tod P, Kaucsár T, Vizovišek M, Vidmar R, Turk B, Fonović M, Szénási G, Hamar P. The Acute Phase Response Is a Prominent Renal Proteome Change in Sepsis in Mice. Int J Mol Sci 2019; 21:E200. [PMID: 31892161 PMCID: PMC6982205 DOI: 10.3390/ijms21010200] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 12/16/2019] [Accepted: 12/20/2019] [Indexed: 12/11/2022] Open
Abstract
(1) Background: Sepsis-induced acute kidney injury (AKI) is the most common form of acute kidney injury (AKI). We studied the temporal profile of the sepsis-induced renal proteome changes. (2) Methods: Male mice were injected intraperitoneally with bacterial lipopolysaccharide (LPS) or saline (control). Renal proteome was studied by LC-MS/MS (ProteomeXchange: PXD014664) at the early phase (EP, 1.5 and 6 h after 40 mg/kg LPS) and the late phase (LP, 24 and 48 h after 10 mg/kg LPS) of LPS-induced AKI. Renal mRNA expression of acute phase proteins (APP) was assessed by qPCR. (3) Results: Renal proteome change was milder in EP vs. LP. APPs dominated the proteome in LP (proteins upregulated at least 4-fold (APPs/all): EP, 1.5 h: 0/10, 6 h: 1/10; LP, 24 h: 22/47, 48 h: 17/44). Lipocalin-2, complement C3, fibrinogen, haptoglobin and hemopexin were the most upregulated APPs. Renal mRNA expression preceded the APP changes with peak effects at 24 h, and indicated renal production of the majority of APPs. (4) Conclusions: Gene expression analysis revealed local production of APPs that commenced a few hours post injection and peaked at 24 h. This is the first demonstration of a massive, complex and coordinated acute phase response of the kidney involving several proteins not identified previously.
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Affiliation(s)
- Beáta Róka
- Institute of Translational Medicine, Semmelweis University, 1094 Budapest, Hungary; (B.R.); (P.T.); (T.K.); (G.S.)
| | - Pál Tod
- Institute of Translational Medicine, Semmelweis University, 1094 Budapest, Hungary; (B.R.); (P.T.); (T.K.); (G.S.)
- Institute for Translational Medicine, Medical School, University of Pécs, 7624 Pécs, Hungary
| | - Tamás Kaucsár
- Institute of Translational Medicine, Semmelweis University, 1094 Budapest, Hungary; (B.R.); (P.T.); (T.K.); (G.S.)
| | - Matej Vizovišek
- Department of Biochemistry and Molecular and Structural Biology, Jožef Stefan Institute, 1000 Ljubljana, Slovenia; (M.V.); (R.V.); (B.T.); (M.F.)
| | - Robert Vidmar
- Department of Biochemistry and Molecular and Structural Biology, Jožef Stefan Institute, 1000 Ljubljana, Slovenia; (M.V.); (R.V.); (B.T.); (M.F.)
| | - Boris Turk
- Department of Biochemistry and Molecular and Structural Biology, Jožef Stefan Institute, 1000 Ljubljana, Slovenia; (M.V.); (R.V.); (B.T.); (M.F.)
- Centre of Excellence for Integrated Approaches in Chemistry and Biology of Proteins, 1000 Ljubljana, Slovenia
| | - Marko Fonović
- Department of Biochemistry and Molecular and Structural Biology, Jožef Stefan Institute, 1000 Ljubljana, Slovenia; (M.V.); (R.V.); (B.T.); (M.F.)
- Centre of Excellence for Integrated Approaches in Chemistry and Biology of Proteins, 1000 Ljubljana, Slovenia
| | - Gábor Szénási
- Institute of Translational Medicine, Semmelweis University, 1094 Budapest, Hungary; (B.R.); (P.T.); (T.K.); (G.S.)
| | - Péter Hamar
- Institute of Translational Medicine, Semmelweis University, 1094 Budapest, Hungary; (B.R.); (P.T.); (T.K.); (G.S.)
- Institute for Translational Medicine, Medical School, University of Pécs, 7624 Pécs, Hungary
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A reporter mouse for non-invasive detection of toll-like receptor ligands induced acute phase responses. Sci Rep 2019; 9:19065. [PMID: 31836734 PMCID: PMC6910947 DOI: 10.1038/s41598-019-55281-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 11/26/2019] [Indexed: 12/02/2022] Open
Abstract
The acute phase response (APR) is a systemic first-line defense against challenges including infection, trauma, stress, and neoplasia. Alteration of acute phase protein (APP) levels in plasma is the most important change during acute phase response. C-reactive protein (CRP), which increases dramatically during inflammation onset, is an indicator of inflammation. To monitor the process of APR, we generated human CRP promoter-driven luciferase transgenic (hCRP-Luc) mice to quantify the hCRP promoter activation in vivo. The naïve female hCRP-Luc mice express low basal levels of liver bioluminescence, but the naïve male hCRP-Luc mice do not. Thus, female hCRP-Luc mice are suitable for monitoring the process of APR. The liver bioluminescence of female hCRP-Luc mice can be induced by several toll-like receptor (TLR) ligands. The expression of liver bioluminescence was highly sensitive to endotoxin stimulation in a dose-dependent manner. On-off-on bioluminescence response was noted in female hCRP-Luc mice upon two endotoxin stimulations one month apart. The LPS-induced bioluminescence of the female hCRP-Luc mice was IL-6-mediated and associated with APP alpha-1-acid glycoprotein expression. In conclusion, the female hCRP-Luc mouse is a non-invasive, sensitive and reusable reporter tool for APR.
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Duvigneau JC, Luís A, Gorman AM, Samali A, Kaltenecker D, Moriggl R, Kozlov AV. Crosstalk between inflammatory mediators and endoplasmic reticulum stress in liver diseases. Cytokine 2019; 124:154577. [DOI: 10.1016/j.cyto.2018.10.018] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 10/18/2018] [Indexed: 12/11/2022]
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Sprooten J, Garg AD. Type I interferons and endoplasmic reticulum stress in health and disease. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2019; 350:63-118. [PMID: 32138904 PMCID: PMC7104985 DOI: 10.1016/bs.ircmb.2019.10.004] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Type I interferons (IFNs) comprise of pro-inflammatory cytokines created, as well as sensed, by all nucleated cells with the main objective of blocking pathogens-driven infections. Owing to this broad range of influence, type I IFNs also exhibit critical functions in many sterile inflammatory diseases and immunopathologies, especially those associated with endoplasmic reticulum (ER) stress-driven signaling pathways. Indeed, over the years accumulating evidence has indicated that the presence of ER stress can influence the production, or sensing of, type I IFNs induced by perturbations like pattern recognition receptor (PRR) agonists, infections (bacterial, viral or parasitic) or autoimmunity. In this article we discuss the link between type I IFNs and ER stress in various diseased contexts. We describe how ER stress regulates type I IFNs production or sensing, or how type I IFNs may induce ER stress, in various circumstances like microbial infections, autoimmunity, diabetes, cancer and other ER stress-related contexts.
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Affiliation(s)
- Jenny Sprooten
- Department for Cellular and Molecular Medicine, Cell Death Research & Therapy (CDRT) Unit, KU Leuven, Leuven, Belgium
| | - Abhishek D Garg
- Department for Cellular and Molecular Medicine, Cell Death Research & Therapy (CDRT) Unit, KU Leuven, Leuven, Belgium.
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Lee C, Cheung ST. STAT3: An Emerging Therapeutic Target for Hepatocellular Carcinoma. Cancers (Basel) 2019; 11:cancers11111646. [PMID: 31731457 PMCID: PMC6895841 DOI: 10.3390/cancers11111646] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 10/21/2019] [Accepted: 10/22/2019] [Indexed: 12/16/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is a major global health problem and its treatment options have been limited. Signal transducer and activator of transcription 3 (STAT3) is a transcription factor important for various cellular processes. Overexpression and constitutive activation of STAT3 have been frequently found in HCC and associated with poor prognosis. Ample evidence has shown that STAT3 plays pivotal roles in the initiation, progression, metastasis and immune suppression of HCC. Thus, STAT3 has attracted attention as a novel therapeutic target in HCC. Clinical trials have investigated STAT3-targeted therapeutics either as monotherapy or in combination with chemotherapeutic agents, immune checkpoint inhibitors and alternative targeted drugs. Some of these studies have yielded encouraging results. Particularly, napabucasin—a cancer stemness inhibitor targeting STAT3-driven gene transcription—has stood out with its promising clinical efficacy and safety profile. Nonetheless, clinical investigations of STAT3-targeted therapies in HCC are limited and more efforts are strongly urged to evaluate their clinical performance in HCC. Here, we provide a comprehensive review of the roles of STAT3 in HCC and follow by comprehensive analysis of STAT3 targeted strategies.
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Affiliation(s)
- Carol Lee
- Department of Surgery, The Chinese University of Hong Kong, Hong Kong, China;
| | - Siu Tim Cheung
- Department of Surgery, The Chinese University of Hong Kong, Hong Kong, China;
- Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
- Correspondence: ; Tel.: +852-3505-1121
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Beneficial and Deleterious Effects of Female Sex Hormones, Oral Contraceptives, and Phytoestrogens by Immunomodulation on the Liver. Int J Mol Sci 2019; 20:ijms20194694. [PMID: 31546715 PMCID: PMC6801544 DOI: 10.3390/ijms20194694] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 09/13/2019] [Accepted: 09/20/2019] [Indexed: 12/11/2022] Open
Abstract
The liver is considered the laboratory of the human body because of its many metabolic processes. It accomplishes diverse activities as a mixed gland and is in continuous cross-talk with the endocrine system. Not only do hormones from the gastrointestinal tract that participate in digestion regulate the liver functions, but the sex hormones also exert a strong influence on this sexually dimorphic organ, via their receptors expressed in liver, in both health and disease. Besides, the liver modifies the actions of sex hormones through their metabolism and transport proteins. Given the anatomical position and physiological importance of liver, this organ is evidenced as an immune vigilante that mediates the systemic immune response, and, in turn, the immune system regulates the hepatic functions. Such feedback is performed by cytokines. Pro-inflammatory and anti-inflammatory cytokines are strongly involved in hepatic homeostasis and in pathological states; indeed, female sex hormones, oral contraceptives, and phytoestrogens have immunomodulatory effects in the liver and the whole organism. To analyze the complex and interesting beneficial or deleterious effects of these drugs by their immunomodulatory actions in the liver can provide the basis for either their pharmacological use in therapeutic treatments or to avoid their intake in some diseases.
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Meijers WC, Maglione M, Bakker SJL, Oberhuber R, Kieneker LM, de Jong S, Haubner BJ, Nagengast WB, Lyon AR, van der Vegt B, van Veldhuisen DJ, Westenbrink BD, van der Meer P, Silljé HHW, de Boer RA. Heart Failure Stimulates Tumor Growth by Circulating Factors. Circulation 2019; 138:678-691. [PMID: 29459363 DOI: 10.1161/circulationaha.117.030816] [Citation(s) in RCA: 229] [Impact Index Per Article: 45.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND Heart failure (HF) survival has improved, and nowadays, many patients with HF die of noncardiac causes, including cancer. Our aim was to investigate whether a causal relationship exists between HF and the development of cancer. METHODS HF was induced by inflicting large anterior myocardial infarction in APCmin mice, which are prone to developing precancerous intestinal tumors, and tumor growth was measured. In addition, to rule out hemodynamic impairment, a heterotopic heart transplantation model was used in which an infarcted or sham-operated heart was transplanted into a recipient mouse while the native heart was left in situ. After 6 weeks, tumor number, volume, and proliferation were quantified. Candidate secreted proteins were selected because they were previously associated both with (colon) tumor growth and with myocardial production in post-myocardial infarction proteomic studies. Myocardial gene expression levels of these selected candidates were analyzed, as well as their proliferative effects on HT-29 (colon cancer) cells. We validated these candidates by measuring them in plasma of healthy subjects and patients with HF. Finally, we associated the relation between cardiac specific and inflammatory biomarkers and new-onset cancer in a large, prospective general population cohort. RESULTS The presence of failing hearts, both native and heterotopically transplanted, resulted in significantly increased intestinal tumor load of 2.4-fold in APCmin mice (all P<0.0001). The severity of left ventricular dysfunction and fibrotic scar strongly correlated with tumor growth ( P=0.002 and P=0.016, respectively). We identified several proteins (including serpinA3 and A1, fibronectin, ceruloplasmin, and paraoxonase 1) that were elevated in human patients with chronic HF (n=101) compared with healthy subjects (n=180; P<0.001). Functionally, serpinA3 resulted in marked proliferation effects in human colon cancer (HT-29) cells, associated with Akt-S6 phosphorylation. Finally, elevated cardiac and inflammation biomarkers in apparently healthy humans (n=8319) were predictive of new-onset cancer (n=1124) independently of risk factors for cancer (age, smoking status, and body mass index). CONCLUSIONS We demonstrate that the presence of HF is associated with enhanced tumor growth and that this is independent of hemodynamic impairment and could be caused by cardiac excreted factors. A diagnosis of HF may therefore be considered a risk factor for incident cancer.
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Affiliation(s)
- Wouter C Meijers
- Department of Cardiology (W.C.M., D.J.v.V., B.D.W., P.v.d.M., H.H.W.S., R.A.d.B.)
| | - Manuel Maglione
- Centre of Operative Medicine, Department of Visceral, Transplant and Thoracic Surgery (M.M., R.O.)
| | - Stephan J L Bakker
- Department of Internal Medicine, Division of Nephrology (S.J.L.B., L.M.K.), University Medical Center Groningen, University of Groningen, The Netherlands
| | - Rupert Oberhuber
- Centre of Operative Medicine, Department of Visceral, Transplant and Thoracic Surgery (M.M., R.O.)
| | - Lyanne M Kieneker
- Department of Internal Medicine, Division of Nephrology (S.J.L.B., L.M.K.), University Medical Center Groningen, University of Groningen, The Netherlands
| | | | - Bernhard J Haubner
- Department of Internal Medicine III (Cardiology and Angiology) (B.J.H.), Medical University of Innsbruck, Austria
| | | | - Alexander R Lyon
- National Heart and Lung Institute, Imperial College London and Royal Brompton Hospital, United Kingdom (A.R.L.)
| | | | | | - B Daan Westenbrink
- Department of Cardiology (W.C.M., D.J.v.V., B.D.W., P.v.d.M., H.H.W.S., R.A.d.B.)
| | - Peter van der Meer
- Department of Cardiology (W.C.M., D.J.v.V., B.D.W., P.v.d.M., H.H.W.S., R.A.d.B.)
| | - Herman H W Silljé
- Department of Cardiology (W.C.M., D.J.v.V., B.D.W., P.v.d.M., H.H.W.S., R.A.d.B.)
| | - Rudolf A de Boer
- Department of Cardiology (W.C.M., D.J.v.V., B.D.W., P.v.d.M., H.H.W.S., R.A.d.B.)
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Czaya B, Faul C. The Role of Fibroblast Growth Factor 23 in Inflammation and Anemia. Int J Mol Sci 2019; 20:E4195. [PMID: 31461904 PMCID: PMC6747522 DOI: 10.3390/ijms20174195] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 08/22/2019] [Accepted: 08/23/2019] [Indexed: 02/07/2023] Open
Abstract
In patients with chronic kidney disease (CKD), adverse outcomes such as systemic inflammation and anemia are contributing pathologies which increase the risks for cardiovascular mortality. Amongst these complications, abnormalities in mineral metabolism and the metabolic milieu are associated with chronic inflammation and iron dysregulation, and fibroblast growth factor 23 (FGF23) is a risk factor in this context. FGF23 is a bone-derived hormone that is essential for regulating vitamin D and phosphate homeostasis. In the early stages of CKD, serum FGF23 levels rise 1000-fold above normal values in an attempt to maintain normal phosphate levels. Despite this compensatory action, clinical CKD studies have demonstrated powerful and dose-dependent associations between FGF23 levels and higher risks for mortality. A prospective pathomechanism coupling elevated serum FGF23 levels with CKD-associated anemia and cardiovascular injury is its strong association with chronic inflammation. In this review, we will examine the current experimental and clinical evidence regarding the role of FGF23 in renal physiology as well as in the pathophysiology of CKD with an emphasis on chronic inflammation and anemia.
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Affiliation(s)
- Brian Czaya
- Division of Nephrology, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Christian Faul
- Division of Nephrology, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL 35294, USA.
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Ehlting C, Rex J, Albrecht U, Deenen R, Tiedje C, Köhrer K, Sawodny O, Gaestel M, Häussinger D, Bode JG. Cooperative and distinct functions of MK2 and MK3 in the regulation of the macrophage transcriptional response to lipopolysaccharide. Sci Rep 2019; 9:11021. [PMID: 31363109 PMCID: PMC6667695 DOI: 10.1038/s41598-019-46791-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 05/29/2019] [Indexed: 12/04/2022] Open
Abstract
The p38MAPK downstream targets MAPKAP kinases (MK) 2 and 3 are critical for the regulation of the macrophage response to LPS. The extents to which these two kinases act cooperatively and distinctly in regulating LPS-induced inflammatory cytokine expression are still unclear. To address this uncertainty, whole transcriptome analyses were performed using bone marrow-derived macrophages (BMDM) generated from MK2−/− or MK2/3−/− animals and their wild-type littermates. The results suggest that in BMDM, MK2 and MK3 not only cooperatively regulate the transcript expression of signaling intermediates, including IL-10, IL-19, CXCL2 and the IL-4 receptor (IL-4R)α subunit, they also exert distinct regulatory effects on the expression of specific transcripts. Based on the differential regulation of gene expression by MK2 and MK3, at least six regulatory patterns were identified. Importantly, we confirmed our previous finding, which showed that in the absence of MK2, MK3 negatively regulates IFN-β. Moreover, this genome-wide analysis identified the regulation of Cr1A, NOD1 and Serpina3f as similar to that of IFN-β. In the absence of MK2, MK3 also delayed the nuclear translocation of NFκB by delaying the ubiquitination and subsequent degradation of IκBβ, reflecting the substantial plasticity of the response of BMDM to LPS.
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Affiliation(s)
- Christian Ehlting
- Clinic for Gastroenterology, Hepatology and Infectiology, University Hospital, Medical Faculty, Heinrich Heine University of Düsseldorf, Düsseldorf, Germany
| | - Julia Rex
- Institute for System Dynamics, University of Stuttgart, Stuttgart, Germany
| | - Ute Albrecht
- Clinic for Gastroenterology, Hepatology and Infectiology, University Hospital, Medical Faculty, Heinrich Heine University of Düsseldorf, Düsseldorf, Germany
| | - René Deenen
- Biological and Medical Research Center (BMFZ), Genomics & Transcriptomics Laboratory, Heinrich Heine University of Düsseldorf, Düsseldorf, Germany
| | - Christopher Tiedje
- Institute of Cell Biochemistry, Hannover Medical School, Hannover, Germany.,Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Karl Köhrer
- Biological and Medical Research Center (BMFZ), Genomics & Transcriptomics Laboratory, Heinrich Heine University of Düsseldorf, Düsseldorf, Germany
| | - Oliver Sawodny
- Institute for System Dynamics, University of Stuttgart, Stuttgart, Germany
| | - Matthias Gaestel
- Institute of Cell Biochemistry, Hannover Medical School, Hannover, Germany
| | - Dieter Häussinger
- Clinic for Gastroenterology, Hepatology and Infectiology, University Hospital, Medical Faculty, Heinrich Heine University of Düsseldorf, Düsseldorf, Germany
| | - Johannes Georg Bode
- Clinic for Gastroenterology, Hepatology and Infectiology, University Hospital, Medical Faculty, Heinrich Heine University of Düsseldorf, Düsseldorf, Germany.
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Milajerdi A, Larijani B, Esmaillzadeh A. Statins influence biomarkers of low grade inflammation in apparently healthy people or patients with chronic diseases: A systematic review and meta-analysis of randomized clinical trials. Cytokine 2019; 123:154752. [PMID: 31228727 DOI: 10.1016/j.cyto.2019.154752] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 05/20/2019] [Accepted: 06/07/2019] [Indexed: 12/13/2022]
Abstract
BACKGROUND No earlier study summarized findings on the effect of statins on inflammatory biomarkers in apparently healthy individuals or those with chronic diseases. This study was done to systematically review earlier publications on the effect of statins on serum concentrations of C-reactive protein (CRP) and Interleukin-6 (IL-6) in apparently healthy individuals or those with chronic diseases. METHODS We searched relevant publications published up to December 2018 in PubMed, MEDLINE, SCOPUS, EMBASE, and Google Scholar databases. For this purpose, suitable MESH and non-MESH keywords were used. Randomized placebo-controlled clinical trials that examined the effect of statins on serum concentrations of CRP and IL-6 in apparently healthy adults or those with chronic diseases were included. RESULTS Overall, 18 studies with 23 effect sizes, that enrolled 32,156 individuals (38% female and 62% male; mean age: 44.79 years) were included. When we combined 21 effect sizes from 16 studies, we observed a significant reduction in circulating levels of CRP following administration of statins [Weighted Mean Difference (WMD): -0.80; 95% CI: -1.05, -0.56]. Combining 12 effect sizes from 11 studies, a significant reduction was found in serum CRP concentrations following administration of Atorvastatin (WMD: -0.57; 95% CI: -0.78, -0.35). Pooling 5 effect sizes from 2 studies, we found a significant reduction in serum concentrations of CRP following administration of Simvastatin (WMD: -0.29; 95% CI: -0.49, -0.10; I2 = 88.5%). Combining 6 effect sizes from 5 studies, we found a significant reduction in serum IL-6 concentrations after Atorvastatin therapy (WMD: -2.13; 95% CI: -3.96, -0.30; I2 = 98.6%). CONCLUSIONS In conclusion, we found that statins administration in apparently healthy people or those with chronic diseases help reducing serum CRP concentrations. In addition, Atorvastatin administration resulted in reduced serum IL-6 concentrations in these people.
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Affiliation(s)
- Alireza Milajerdi
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran; Students' Scientific Research Center (SSRC), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Esmaillzadeh
- Obesity and Eating Habits Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran; Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran; Food Security Research Center, Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran.
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Kawade N, Murai A, Suzuki W, Tokuda Y, Kobayashi M, Horio F. Ascorbic acid deficiency increases hepatic expression of acute phase proteins through the intestine-derived IL-6 and hepatic STAT3 pathway in ODS rats. J Nutr Biochem 2019; 70:116-124. [PMID: 31200316 DOI: 10.1016/j.jnutbio.2019.04.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 03/28/2019] [Accepted: 04/25/2019] [Indexed: 11/15/2022]
Abstract
We have previously shown that ascorbic acid (AsA) deficiency elevates hepatic expression of acute phase proteins (APPs), inflammatory markers, in Osteogenic Disorder Shionogi (ODS) rats, which are unable to synthesize AsA. However, the precise mechanisms of this elevation are unknown. Signal transducer and activator of transcription 3 (STAT3) is one of the transcription factors inducing the expression of APPs and is activated by several cytokines including interleukin-6 (IL-6). The aim of this study was to determine whether AsA deficiency stimulates hepatic STAT3 activation and increases intestinal production of proinflammatory cytokines such as IL-6. Male ODS rats (6 weeks old) were fed either a basal diet containing 300 mg AsA/kg (control group) or an AsA-free diet (AsA-deficient group) for 18 days. AsA deficiency gradually and simultaneously elevated both mRNA levels of APPs (haptoglobin, α1-acid glycoprotein, C-reactive protein and α2-macroglobulin) and nuclear level of phosphorylated STAT3 (activated STAT3) in the liver. These results showed that the AsA-deficiency-induced expression of hepatic APPs is stimulated by proinflammatory cytokines activating STAT3. On day 14, AsA deficiency significantly elevated IL-6 mRNA level in the ileum and the concentration of IL-6 in portal blood. Furthermore, the portal concentration of IL-6 positively correlated with hepatic mRNA levels of STAT3-regulated genes. These findings suggest that IL-6, produced in the intestine as a result of AsA deficiency, is recruited to the liver via the portal vein and contributes to hepatic STAT3 activation and the elevated expression of APPs.
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Affiliation(s)
- Noe Kawade
- Department of Animal Sciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Atsushi Murai
- Department of Animal Sciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Wakana Suzuki
- Department of Animal Sciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Yuki Tokuda
- Department of Animal Sciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Misato Kobayashi
- Department of Animal Sciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Fumihiko Horio
- Department of Animal Sciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan.
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Revez JA, Bain LM, Watson RM, Towers M, Collins T, Killian KJ, O'Byrne PM, Gauvreau GM, Upham JW, Ferreira MA. Effects of interleukin-6 receptor blockade on allergen-induced airway responses in mild asthmatics. Clin Transl Immunology 2019; 8:e1044. [PMID: 31223480 PMCID: PMC6566140 DOI: 10.1002/cti2.1044] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 03/03/2019] [Accepted: 03/04/2019] [Indexed: 01/12/2023] Open
Abstract
Background Interleukin (IL)-6 signalling has been implicated in allergic asthma by animal, genetic association and clinical studies. In this study, we tested the hypothesis that tocilizumab (TCZ), a human monoclonal antibody that blocks IL-6 signalling, can prevent the development of allergen-induced bronchoconstriction in humans. Methods We performed a randomised, double-blind, placebo-controlled study, with eligible participants completing two allergen inhalation challenge tests, conducted before and after treatment with a single dose of TCZ or placebo. The primary efficacy endpoint was the magnitude of the late asthmatic response recorded between 3 and 7 after allergen challenge. The secondary efficacy endpoint was the early asthmatic response, measured 20 min to 2 h after allergen challenge. Results A total of 66 patients enrolled between September 2014 and August 2017, when the trial was stopped for futility based on results from an interim analysis. Eleven patients fulfilled all eligibility criteria assessed at baseline and were subsequently randomised to the TCZ (n = 6) or placebo (n = 5) groups. Both the primary and secondary efficacy endpoints were not significantly different between the two groups. Five patients reported adverse events (AEs), three in the TCZ group (11 AEs) and two in the placebo group (four AEs). Only one AE was TCZ-related (mild neutropenia), and there were no serious AEs. Significant treatment effects were observed for serum levels of C-reactive protein, IL-6 and soluble IL-6R levels. Conclusion In a small proof-of-concept clinical trial, we found no evidence that a single dose of tocilizumab was able to prevent allergen-induced bronchoconstriction. (Trial registered in the Australian New Zealand Clinical Trials Registry, number ACTRN12614000123640).
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Affiliation(s)
- Joana A Revez
- QIMR Berghofer Medical Research Institute Brisbane QLD Australia
| | - Lisa M Bain
- QIMR Berghofer Medical Research Institute Brisbane QLD Australia
| | - Rick M Watson
- Division of Respirology Department of Medicine McMaster University Hamilton ON Canada
| | - Michelle Towers
- Diamantina Institute University of Queensland Brisbane QLD Australia
| | - Tina Collins
- Diamantina Institute University of Queensland Brisbane QLD Australia
| | - Kieran J Killian
- Division of Respirology Department of Medicine McMaster University Hamilton ON Canada
| | - Paul M O'Byrne
- Division of Respirology Department of Medicine McMaster University Hamilton ON Canada
| | - Gail M Gauvreau
- Division of Respirology Department of Medicine McMaster University Hamilton ON Canada
| | - John W Upham
- Diamantina Institute University of Queensland Brisbane QLD Australia
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A Comparative Study of Interleukin 6, Inflammatory Markers, Ferritin, and Hematological Profile in Rheumatoid Arthritis Patients with Anemia of Chronic Disease and Iron Deficiency Anemia. Anemia 2019; 2019:3457347. [PMID: 31057960 PMCID: PMC6463678 DOI: 10.1155/2019/3457347] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Accepted: 03/06/2019] [Indexed: 01/18/2023] Open
Abstract
Background Interleukin-6 (IL-6) proinflammatory cytokine is associated with the pathogenesis of rheumatoid arthritis and development of anemia in it. This is a comparative study of inflammatory and hematological parameters in RA patients with anemia of chronic disease (ACD) and iron deficiency anemia (IDA). It aimed to demonstrate the changes in serum level of IL-6, ferritin level, and hematological parameters in different groups of patients with RA and to find out the potential correlation between serum level of IL-6 and ferritin level and the relationship between serum level of IL-6 and iron status. Methods The study included 89 patients from both sexes divided into four groups (group 1: 30 iron deficiency anemia (IDA), 59 RA; group 2: 20 RA-COMBI; group 3: 23 RA-ACD; and group 4: 16 nonanemic RA). These different groups were compared with a healthy group of 50 healthy individuals. Different blood parameters (WBC, RBC, HGB, HCT, MCV, and MCH) have been evaluated. Serum concentrations of IL-6, hsCRP, anti-CCP, and ferritin were measured in all patients and healthy individual using enzyme-linked immunosorbent assay ELISA. Results There were significant changes in most of blood parameters between the groups, and there was a significant increase in the levels of IL-6 among RA patients. This increase was highly significant among RA-ACD patients in particular, and this elevation has been directly correlated with clinical indices of disease activity such as hsCRP, ESR, anti-CCP, and ferritin. There was an inverse relationship between ferritin and all iron status parameter, such as RBC, HGB, and haematocrit. Conclusion IL-6 and ferritin level estimation may be workable tests to differentiate the patients with IDA and ACD in RA.
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Chang CY, Tung YT, Lin YK, Liao CC, Chiu CF, Tung TH, Shabrina A, Huang SY. Effects of Caloric Restriction with Protein Supplementation on Plasma Protein Profiles in Middle-Aged Women with Metabolic Syndrome-A Preliminary Open Study. J Clin Med 2019; 8:jcm8020195. [PMID: 30736312 PMCID: PMC6406984 DOI: 10.3390/jcm8020195] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 02/01/2019] [Accepted: 02/02/2019] [Indexed: 11/17/2022] Open
Abstract
Background: Clinical studies have demonstrated that higher protein intake based on caloric restriction (CR) alleviates metabolic abnormalities. However, no study has examined the effects of plasma protein profiles on caloric restriction with protein supplementation (CRPS) in metabolic syndrome (MetS). Therefore, using a proteomic perspective, this pilot study investigated whether CRPS ameliorated metabolic abnormalities associated with MetS in middle-aged women. Methods: Plasma samples of middle-aged women with MetS in CR (n = 7) and CRPS (n = 6) groups for a 12-week intervention were obtained and their protein profiles were analysed. Briefly, blood samples from qualified participants were drawn before and after the dietary treatment. Anthropometric, clinical, and biochemical variables were measured and correlated with plasma proteomics. Results: In results, we found that body mass index, total body fat, and fasting blood glucose decreased significantly after the interventions but were not different between the CR and CRPS groups. After liquid chromatography–tandem mass spectrometry analysis, the relative plasma levels of alpha-2-macroglobulin (A2M), C4b-binding protein alpha chain (C4BPA), complement C1r subcomponent-like protein (C1RL), complement component C6 (C6), complement component C8 gamma chain (C8G), and vitamin K-dependent protein S (PROS) were significantly different between the CRPS and CR groups. These proteins are involved in inflammation, the immune system, and coagulation responses. Moreover, blood low-density lipoprotein cholesterol levels were significantly and positively correlated with C6 plasma levels in both groups. Conclusions: These findings suggest that CRPS improves inflammatory responses in middle-aged women with MetS. Specific plasma protein expression (i.e., A2M, C4BPA, C1RL, C6, C8G, and PROS) associated with the complement system was highly correlated with fasting blood glucose (FBG), blood lipids (BLs), and body fat.
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Affiliation(s)
- Chia-Yu Chang
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei 110, Taiwan.
| | - Yu-Tang Tung
- Graduate Institute of Metabolism and Obesity Sciences, Taipei Medical University, Taipei 110, Taiwan.
| | - Yen-Kuang Lin
- Biostatistics Center, Taipei Medical University, Taipei 110, Taiwan.
| | - Chen-Chung Liao
- Proteomics Research Center, National Yang-Ming University, Taipei 112, Taiwan.
| | - Ching-Feng Chiu
- Graduate Institute of Metabolism and Obesity Sciences, Taipei Medical University, Taipei 110, Taiwan.
| | - Te-Hsuan Tung
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei 110, Taiwan.
| | - Amalina Shabrina
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei 110, Taiwan.
| | - Shih-Yi Huang
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei 110, Taiwan.
- Graduate Institute of Metabolism and Obesity Sciences, Taipei Medical University, Taipei 110, Taiwan.
- Center for Reproductive Medicine & Sciences, Taipei Medical University Hospital, Taipei 110, Taiwan.
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Abstract
Iron, an essential nutrient, is required for many biological processes but is also toxic in excess. The lack of a mechanism to excrete excess iron makes it crucial for the body to regulate the amount of iron absorbed from the diet. This regulation is mediated by the hepatic hormone hepcidin. Hepcidin also controls iron release from macrophages that recycle iron and from hepatocytes that store iron. Hepcidin binds to the only known iron export protein, ferroportin, inducing its internalization and degradation and thus limiting the amount of iron released into the plasma. Important regulators of hepcidin, and therefore of systemic iron homeostasis, include plasma iron concentrations, body iron stores, infection and inflammation, hypoxia and erythropoiesis, and, to a lesser extent, testosterone. Dysregulation of hepcidin production contributes to the pathogenesis of many iron disorders: hepcidin deficiency causes iron overload in hereditary hemochromatosis and non-transfused β-thalassemia, whereas overproduction of hepcidin is associated with iron-restricted anemias seen in patients with chronic inflammatory diseases and inherited iron-refractory iron-deficiency anemia. The present review summarizes our current understanding of the molecular mechanisms and signaling pathways contributing to hepcidin regulation by these factors and highlights the issues that still need clarification.
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Affiliation(s)
- Marie-Paule Roth
- Institut de Recherche en Santé Digestive (IRSD), Université de Toulouse, INSERM, INRA, ENVT, UPS, Toulouse, France.
| | - Delphine Meynard
- Institut de Recherche en Santé Digestive (IRSD), Université de Toulouse, INSERM, INRA, ENVT, UPS, Toulouse, France
| | - Hélène Coppin
- Institut de Recherche en Santé Digestive (IRSD), Université de Toulouse, INSERM, INRA, ENVT, UPS, Toulouse, France
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136
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Williamson L, Ayalon I, Shen H, Kaplan J. Hepatic STAT3 inhibition amplifies the inflammatory response in obese mice during sepsis. Am J Physiol Endocrinol Metab 2019; 316:E286-E292. [PMID: 30576248 PMCID: PMC6397363 DOI: 10.1152/ajpendo.00341.2018] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The purpose of this study was to better understand the role obesity plays in the inflammatory response during sepsis, specifically regarding the Janus kinase/signal transducers and activators of transcription (JAK/STAT) pathway in the liver. We hypothesized that inhibiting STAT3 would lead to an increase in the inflammatory response and that obesity would amplify this effect. To investigate this, we inhibited STAT3 in two ways: pharmacological systemic inhibition and genetic hepatic-specific inhibition. In pharmacological inhibition studies, male C57BL/6 mice were randomized to a high-fat (60% kcal fat) or normal (16% kcal fat) diet for 6-7 wk and pretreated with Stattic before inducing sepsis by cecal ligation and puncture. In genetic inhibition studies, mice were randomized by genotype before induction of sepsis. To investigate obesity in mice with hepatic-specific STAT3 inhibition, we randomized mice to a high-fat or normal diet as described above for 6 mo before induction of sepsis. Body composition was analyzed using EchoMRI. We found that systemic STAT3 inhibition by Stattic resulted in an increased inflammatory response and that obesity amplified this effect. We also found that genetically inhibiting STAT3 in the liver resulted in higher mortality, increased inflammation, and liver injury. High-fat-fed mice with hepatic STAT3 inhibition gained more weight and had more fat than control mice on the same diet, and obesity increased neutrophil infiltration to the liver of these mice during sepsis. In conclusion, STAT3 plays an important regulatory role in the inflammatory response during sepsis, and obesity contributes to the dysregulated response observed when STAT3 is inhibited.
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Affiliation(s)
- Lauren Williamson
- Cincinnati Children's Hospital Medical Center, Division of Critical Care Medicine , Cincinnati, Ohio
| | - Itay Ayalon
- Cincinnati Children's Hospital Medical Center, Division of Critical Care Medicine , Cincinnati, Ohio
| | - Hui Shen
- Cincinnati Children's Hospital Medical Center, Division of Critical Care Medicine , Cincinnati, Ohio
| | - Jennifer Kaplan
- Cincinnati Children's Hospital Medical Center, Division of Critical Care Medicine , Cincinnati, Ohio
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137
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Neuroinflammation, Microglia, and Cell-Association during Prion Disease. Viruses 2019; 11:v11010065. [PMID: 30650564 PMCID: PMC6356204 DOI: 10.3390/v11010065] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 01/09/2019] [Accepted: 01/10/2019] [Indexed: 02/06/2023] Open
Abstract
Prion disorders are transmissible diseases caused by a proteinaceous infectious agent that can infect the lymphatic and nervous systems. The clinical features of prion diseases can vary, but common hallmarks in the central nervous system (CNS) are deposition of abnormally folded protease-resistant prion protein (PrPres or PrPSc), astrogliosis, microgliosis, and neurodegeneration. Numerous proinflammatory effectors expressed by astrocytes and microglia are increased in the brain during prion infection, with many of them potentially damaging to neurons when chronically upregulated. Microglia are important first responders to foreign agents and damaged cells in the CNS, but these immune-like cells also serve many essential functions in the healthy CNS. Our current understanding is that microglia are beneficial during prion infection and critical to host defense against prion disease. Studies indicate that reduction of the microglial population accelerates disease and increases PrPSc burden in the CNS. Thus, microglia are unlikely to be a foci of prion propagation in the brain. In contrast, neurons and astrocytes are known to be involved in prion replication and spread. Moreover, certain astrocytes, such as A1 reactive astrocytes, have proven neurotoxic in other neurodegenerative diseases, and thus might also influence the progression of prion-associated neurodegeneration.
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138
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Sergi D, Campbell FM, Grant C, Morris AC, Bachmair EM, Koch C, McLean FH, Muller A, Hoggard N, de Roos B, Porteiro B, Boekschoten MV, McGillicuddy FC, Kahn D, Nicol P, Benzler J, Mayer CD, Drew JE, Roche HM, Muller M, Nogueiras R, Dieguez C, Tups A, Williams LM. SerpinA3N is a novel hypothalamic gene upregulated by a high-fat diet and leptin in mice. GENES AND NUTRITION 2018; 13:28. [PMID: 30519364 PMCID: PMC6263559 DOI: 10.1186/s12263-018-0619-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Accepted: 11/06/2018] [Indexed: 02/08/2023]
Abstract
Background Energy homeostasis is regulated by the hypothalamus but fails when animals are fed a high-fat diet (HFD), and leptin insensitivity and obesity develops. To elucidate the possible mechanisms underlying these effects, a microarray-based transcriptomics approach was used to identify novel genes regulated by HFD and leptin in the mouse hypothalamus. Results Mouse global array data identified serpinA3N as a novel gene highly upregulated by both a HFD and leptin challenge. In situ hybridisation showed serpinA3N expression upregulation by HFD and leptin in all major hypothalamic nuclei in agreement with transcriptomic gene expression data. Immunohistochemistry and studies in the hypothalamic clonal neuronal cell line, mHypoE-N42 (N42), confirmed that alpha 1-antichymotrypsin (α1AC), the protein encoded by serpinA3, is localised to neurons and revealed that it is secreted into the media. SerpinA3N expression in N42 neurons is upregulated by palmitic acid and by leptin, together with IL-6 and TNFα, and all three genes are downregulated by the anti-inflammatory monounsaturated fat, oleic acid. Additionally, palmitate upregulation of serpinA3 in N42 neurons is blocked by the NFκB inhibitor, BAY11, and the upregulation of serpinA3N expression in the hypothalamus by HFD is blunted in IL-1 receptor 1 knockout (IL-1R1−/−) mice. Conclusions These data demonstrate that serpinA3 expression is implicated in nutritionally mediated hypothalamic inflammation.
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Affiliation(s)
- Domenico Sergi
- 1Rowett Institute, University of Aberdeen, Aberdeen, AB25 2ZD UK
| | - Fiona M Campbell
- 1Rowett Institute, University of Aberdeen, Aberdeen, AB25 2ZD UK
| | - Christine Grant
- 1Rowett Institute, University of Aberdeen, Aberdeen, AB25 2ZD UK
| | - Amanda C Morris
- 1Rowett Institute, University of Aberdeen, Aberdeen, AB25 2ZD UK
| | | | - Christiane Koch
- 2Department of Animal Physiology, Faculty of Biology, Philipps University Marburg, Karl-von-Frisch Str. 8, 35043 Marburg, Germany.,3Centre for Neuroendocrinology and Brain Health Research Centre, Department of Physiology, School of Medical Sciences, University of Otago, Dunedin, 9054 New Zealand
| | - Fiona H McLean
- 1Rowett Institute, University of Aberdeen, Aberdeen, AB25 2ZD UK
| | - Aifric Muller
- 1Rowett Institute, University of Aberdeen, Aberdeen, AB25 2ZD UK
| | - Nigel Hoggard
- 1Rowett Institute, University of Aberdeen, Aberdeen, AB25 2ZD UK
| | - Baukje de Roos
- 1Rowett Institute, University of Aberdeen, Aberdeen, AB25 2ZD UK
| | - Begona Porteiro
- 4Department of Physiology, University of Santiago de Compostela, 15705 Santiago de Compostela, Spain.,5CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Madrid, Spain
| | - Mark V Boekschoten
- 6Nutrition, Metabolism and Genomics Group, Division of Human Nutrition, Wageningen University, Wageningen, The Netherlands
| | - Fiona C McGillicuddy
- 7Nutrigenomics Research Group, UCD Conway Institute, University College Dublin, Dublin, Ireland
| | - Darcy Kahn
- 1Rowett Institute, University of Aberdeen, Aberdeen, AB25 2ZD UK
| | - Phyllis Nicol
- 1Rowett Institute, University of Aberdeen, Aberdeen, AB25 2ZD UK
| | - Jonas Benzler
- 2Department of Animal Physiology, Faculty of Biology, Philipps University Marburg, Karl-von-Frisch Str. 8, 35043 Marburg, Germany.,3Centre for Neuroendocrinology and Brain Health Research Centre, Department of Physiology, School of Medical Sciences, University of Otago, Dunedin, 9054 New Zealand
| | - Claus-Dieter Mayer
- 8Biomathematics & Statistics Scotland (BioSS), Rowett Institute, University of Aberdeen, Aberdeen, AB25 2ZD UK
| | - Janice E Drew
- 1Rowett Institute, University of Aberdeen, Aberdeen, AB25 2ZD UK
| | - Helen M Roche
- 7Nutrigenomics Research Group, UCD Conway Institute, University College Dublin, Dublin, Ireland
| | - Michael Muller
- 9Nutrigenomics and Systems Nutrition Group, Norwich Medical School, University of East Anglia, Norwich, NR4 7UQ UK
| | - Ruben Nogueiras
- 4Department of Physiology, University of Santiago de Compostela, 15705 Santiago de Compostela, Spain.,5CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Madrid, Spain
| | - Carlos Dieguez
- 4Department of Physiology, University of Santiago de Compostela, 15705 Santiago de Compostela, Spain.,5CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Madrid, Spain
| | - Alexander Tups
- 2Department of Animal Physiology, Faculty of Biology, Philipps University Marburg, Karl-von-Frisch Str. 8, 35043 Marburg, Germany.,3Centre for Neuroendocrinology and Brain Health Research Centre, Department of Physiology, School of Medical Sciences, University of Otago, Dunedin, 9054 New Zealand
| | - Lynda M Williams
- 1Rowett Institute, University of Aberdeen, Aberdeen, AB25 2ZD UK
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139
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Alonso I, Matos A, Ribeiro R, Gil Â, Cardoso C, Sardinha LB, Bicho M. Mountain Cycling Ultramarathon Effects on Inflammatory and Hemoglobin Responses. Med Sci Sports Exerc 2018; 50:353-360. [PMID: 28991044 DOI: 10.1249/mss.0000000000001440] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
PURPOSE This study aimed to analyze the cumulative physiological burden of repetitive, strenuous exercise held during mountain cycling ultramarathon on regulatory mechanisms of hemoglobin degradation. METHODS Fifty-five nonprofessional athletes (mean age, 44.8 ± 7.1 yr) participating in a 9-consecutive-day mountain cycling ultramarathon (TransPortugal) underwent anthropometric, hematological, and biochemical assessments before and immediately after the race. Participants were further stratified as completers (nine courses) or noncompleters and were divided according to the time they took to complete the race. The heme oxygenase-1 (HMOX1) functional genetic polymorphism and haptoglobin (HP) phenotypic variants were also analyzed. RESULTS Total leukocytes, neutrophil count, and monocyte count increased, whereas decreases in erythrocyte counts and hemoglobin were found between pre- and postultramarathon. Circulating haptoglobin (Hp) was increased, whereas its soluble receptor (sCD163) decreased. Athletes who completed all nine courses presented with increased leukocyte, neutrophil, and erythrocyte counts, as well as hemoglobin, red cell distribution width, total bilirubin, and total cholesterol levels. High-sensitivity C-reactive protein and Hp decreased in comparison with noncompleters. HMOX1 and HP genetic polymorphisms were associated with biochemical profile, notably with Hp levels. Analysis of covariance showed a significant effect of HP phenotype in Hp circulating levels at the end of race and on the magnitude of variation from pre- to postrace. CONCLUSIONS Present findings support a comodulatory influence of genetic- and exercise-associated factors on resulting inflammatory and hemoglobin catabolic marker Hp after highly demanding endurance exercise.
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Affiliation(s)
- Isanete Alonso
- Laboratory of Genetics and Environmental Health Institute, Faculty of Medicine, University of Lisbon, Lisbon, PORTUGAL.,Laboratory of Genetics and Environmental Health Institute, Faculty of Medicine, University of Lisbon, Lisbon, PORTUGAL.,Laboratory of Genetics and Environmental Health Institute, Faculty of Medicine, University of Lisbon, Lisbon, PORTUGAL
| | - Andreia Matos
- Laboratory of Genetics and Environmental Health Institute, Faculty of Medicine, University of Lisbon, Lisbon, PORTUGAL.,Laboratory of Genetics and Environmental Health Institute, Faculty of Medicine, University of Lisbon, Lisbon, PORTUGAL
| | - Ricardo Ribeiro
- Laboratory of Genetics and Environmental Health Institute, Faculty of Medicine, University of Lisbon, Lisbon, PORTUGAL.,Laboratory of Genetics and Environmental Health Institute, Faculty of Medicine, University of Lisbon, Lisbon, PORTUGAL.,Laboratory of Genetics and Environmental Health Institute, Faculty of Medicine, University of Lisbon, Lisbon, PORTUGAL.,Laboratory of Genetics and Environmental Health Institute, Faculty of Medicine, University of Lisbon, Lisbon, PORTUGAL
| | - Ângela Gil
- Laboratory of Genetics and Environmental Health Institute, Faculty of Medicine, University of Lisbon, Lisbon, PORTUGAL.,Laboratory of Genetics and Environmental Health Institute, Faculty of Medicine, University of Lisbon, Lisbon, PORTUGAL
| | - Carlos Cardoso
- Laboratory of Genetics and Environmental Health Institute, Faculty of Medicine, University of Lisbon, Lisbon, PORTUGAL
| | - Luís B Sardinha
- Laboratory of Genetics and Environmental Health Institute, Faculty of Medicine, University of Lisbon, Lisbon, PORTUGAL
| | - Manuel Bicho
- Laboratory of Genetics and Environmental Health Institute, Faculty of Medicine, University of Lisbon, Lisbon, PORTUGAL.,Laboratory of Genetics and Environmental Health Institute, Faculty of Medicine, University of Lisbon, Lisbon, PORTUGAL
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140
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Dik B, Sonmez G, Faki HE, Bahcivan E. Sulfasalazine treatment can cause a positive effect on LPS-induced endotoxic rats. Exp Anim 2018; 67:403-412. [PMID: 29731490 PMCID: PMC6219878 DOI: 10.1538/expanim.18-0029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
The aim of this study, was to determine the effect of sulfasalazine for different periods
of time reduces disseminated intravascular coagulation, inflammation and organ damages by
inhibiting the nuclear factor kappa beta pathway. The study was performed with 30 Wistar
albino rats and the groups were established as Control group, LPS group; endotoxemia was
induced with LPS, SL5 group: sulfasalazine (300 mg/kg, single dose daily) was administered
for 5 days before the LPS-induced endotoxemia, and LS group: sulfasalazine (300 mg/kg,
single dose) was administered similtenously with LPS. Hemogram, biochemical, cytokine
(IL-1β, IL-6, IL-10, TNF-α) and acute phase proteins (HPT, SAA, PGE2) analyzes and
oxidative status values were measured from blood samples at 3 and 6 h after the last
applications in the all groups. The rats were euthanized at 6 h and mRNA
levels of BCL2 and BAX genes were examined from liver
and brain tissues. Sulfasalazine reduced the increased IL-1β, IL-6, TNF-α and
PGE2 levels and significantly increased anti-inflammatory cytokine IL-10
levels. In addition, decreasing of ATIII level was prevented in the SL5 group, and
decreasing of fibrinogen levels were prevented in the LS and SL5 groups within first 3 h.
In LPS group, leukocyte and thrombocyte levels were decreased, however sulfasalazine
application inhibited decreases of leukocyte levels in LS and SL5 groups. In addition,
sulfasalazine inhibited the decrease of total antioxidant capacity and unchanged apoptosis
in brain and liver. In conclusion, the use of sulfasalazine in different durations reduce
the excessive inflammation of endotoxemia cases.
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Affiliation(s)
- Burak Dik
- Department of Pharmacology and Toxicology, Veterinary Faculty, Selcuk University, New Istanbul Highway, 42130 Konya, Turkey
| | - Gonca Sonmez
- Department of Genetics, Veterinary Faculty, Selcuk University, New Istanbul Highway, 42130 Konya, Turkey
| | - Hatice Eser Faki
- Department of Pharmacology and Toxicology, Veterinary Faculty, Selcuk University, New Istanbul Highway, 42130 Konya, Turkey
| | - Emre Bahcivan
- Department of Pharmacology and Toxicology, Veterinary Faculty, Kafkas University, 36300 Kars, Turkey
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141
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Qin N, Kokkonen T, Salin S, Seppänen-Laakso T, Taponen J, Vanhatalo A, Elo K. Prepartal high-energy feeding with grass silage-based diets does not disturb the hepatic adaptation of dairy cows during the periparturient period. J Dairy Sci 2018; 101:8929-8943. [DOI: 10.3168/jds.2017-13153] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 06/08/2018] [Indexed: 12/15/2022]
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Abstract
PURPOSE OF REVIEW To assess the utilization and efficacy of platelet-rich plasma (PRP), for the treatment of articular cartilage injury, most commonly characterized by progressive pain and loss of joint function in the setting of osteoarthritis (OA). RECENT FINDINGS PRP modulates the inflammatory and catabolic environment through a locally applied concentrate of platelets, leukocytes, and growth factors. Clinically, PRP has been shown to be possibly a viable treatment adjuvant for a variety of inflammatory and degenerative conditions. Recent efforts have focused on optimizing delivery methods that enable platelets to slowly degranulate their biological constituents, which may promote healing and improve OA symptoms for a longer duration. There are various factors that affect the progression of OA within joints, including inhibition of inflammatory cytokines and altering the level of enzymatic expression. PRP therapy aims to mediate inflammatory and catabolic factors in a degenerative environment through the secretion of anti-inflammatory factors and chemotaxic effects. There are a growing number of studies that have demonstrated the clinical benefit of PRP for non-operative management of OA. Additional randomized controlled trials with long-term follow-up are needed in order to validate PRP's therapeutic efficacy in this setting. Additionally, continued basic research along with well-designed pre-clinical studies and reporting standards are necessary in order to clarify the effectiveness of PRP for cartilage repair and regeneration for future clinical applications.
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143
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Cytokine-mediated modulation of the hepatic miRNome: miR-146b-5p is an IL-6-inducible miRNA with multiple targets. J Leukoc Biol 2018; 104:987-1002. [DOI: 10.1002/jlb.ma1217-499rr] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 07/20/2018] [Accepted: 07/24/2018] [Indexed: 12/14/2022] Open
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Zhao H, Han Q, Lu N, Xu D, Tian Z, Zhang J. HMBOX1 in hepatocytes attenuates LPS/D-GalN-induced liver injury by inhibiting macrophage infiltration and activation. Mol Immunol 2018; 101:303-311. [PMID: 30032072 DOI: 10.1016/j.molimm.2018.07.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 07/12/2018] [Accepted: 07/13/2018] [Indexed: 12/11/2022]
Abstract
The HMBOX1 (Homeobox Containing 1) gene was first isolated from the human pancreatic cDNA libraries and is widely expressed in many tissues. Previously, we detected high expression of HMBOX1 in the liver, but its function was unclear. In this study, hepatocyte-specific HMBOX1 knockout mice (Hm△hep mice) were generated and used to characterize the function of HMBOX1 in the LPS/D-GalN-induced acute liver failure model. HMBOX1-knockout exhibits exacerbated liver injury induced by LPS/D-GalN, accompanied with high levels of inflammatory cytokines both in the liver and in circulation. Further investigation demonstrated that HMBOX1 negatively regulates NF-κB signal transduction. Therefore, HMBOX1-knockout in hepatocytes promotes CCL2 expression through the activation of NF-κB signaling, which enhanced the infiltration of macrophages into the liver. In addition, the decrease of HMBOX1 in hepatocytes promotes the activation of macrophages, upregulating CD80 and MHCⅡ, as well as inflammatory factors TNF-α and IL-6. Importantly, overexpression of HMBOX1 rescued liver injury in Hm△hep mice. These findings indicate that HMBOX1 in hepatocytes acts as a key immunosuppressive factor for inflammation and plays a critical protective role in LPS/D-GalN-induced liver injury.
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Affiliation(s)
- Hengli Zhao
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, China
| | - Qiuju Han
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, China
| | - Nan Lu
- Diagnostic Institute, Medical School, Shandong University, China
| | - Dongqing Xu
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, China
| | - Zhigang Tian
- Institute of Immunology, School of Life Sciences, University of Science and Technology of China, Hefei, China
| | - Jian Zhang
- Institute of Immunopharmaceutical Sciences, School of Pharmaceutical Sciences, Shandong University, China.
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Serum Hepcidin Level as a Marker of Iron Status in Children with Cystic Fibrosis. Mediators Inflamm 2018; 2018:3040346. [PMID: 30057485 PMCID: PMC6051043 DOI: 10.1155/2018/3040346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 05/23/2018] [Accepted: 05/28/2018] [Indexed: 01/13/2023] Open
Abstract
INTRODUCTION Iron deficiency is common in patients with cystic fibrosis. Conventional iron status markers are often abnormal in patients with CF, reflecting inflammation and/or infection, rather than actual iron stores. The aim was to evaluate serum hepcidin levels against selected iron status markers, assuming that hepcidin may be a more sensitive indicator of iron management in patients with active inflammation, such as those with CF. MATERIAL AND METHODS 46 children with cystic fibrosis and 31 healthy controls were enrolled. Hepcidin concentration was evaluated, along with the following other blood assays: full blood count, Fe, ferritin, transferrin, TIBC, liver markers, and CRP. RESULTS Higher ferritin and CRP levels as well as lower TIBC levels significantly predicted hepcidin levels in the study group, control group, and the entire sample. There was no significant difference in hepcidin levels between the patients and controls. Children with exacerbations had significantly higher hepcidin levels than those with stable disease. These findings support the serum hepcidin level as useful in assessing iron status in children with cystic fibrosis. It may also be useful in early detection and monitoring of treatment of exacerbations.
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146
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Liu Q, Wang Q, Li H. Embelin inhibits abdominal aortic aneurysm through decreasing IL‑6‑induced STAT3 and NF‑κB inactivation. Mol Med Rep 2018; 18:2365-2372. [PMID: 29956759 DOI: 10.3892/mmr.2018.9221] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 09/02/2016] [Indexed: 11/05/2022] Open
Abstract
The aim of the present study was to investigate the effect of embelin on abdominal aortic aneurysm (AAA). AAA model mice were induced by chronic infusion of 1,000 ng/kg/min Angiotensin II. AAA model mice were treated with 25, 50 or 100 mg/kg embelin for 28 days. Embelin inhibited tumor necrosis factor‑α, interleukin (IL)‑1β, IL‑6, IL‑18 and malondialdehyde (MDA) level activities, increased superoxide dismutase, glutathione (GSH) and GSH peroxidase level activities and inhibited MDA level activities in AAA mice Embelin suppressed the secretion of matrix metalloproteinase‑9 protein expression, monocyte chemoattractant protein‑2 activity and epithelial neutrophil‑activating peptide expression levels in AAA mice. Embelin suppressed phosphorylated‑signal transducer and activator of transcription (STAT) 3, phosphorylated‑p38 mitogen‑activated protein kinase and nuclear factor (NF)‑κB protein expression in AAA mice. These findings indicate that embelin inhibits AAA through decreasing IL‑6‑induced STAT3, and NF‑κB inactivation.
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Affiliation(s)
- Qiang Liu
- Department of Vascular Surgery, The First Hospital of Qiqiha'er City, Qiqiha'er, Heilongjiang 161005, P.R. China
| | - Qingshan Wang
- Department of Vascular Surgery, Heilongjiang Provincial Hospital, Harbin, Heilongjiang 150036, P.R. China
| | - Haibin Li
- Department of Vascular Surgery, The First Hospital of Qiqiha'er City, Qiqiha'er, Heilongjiang 161005, P.R. China
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Elevated plasma abscisic acid is associated with asymptomatic falciparum malaria and with IgG-/caspase-1-dependent immunity in Plasmodium yoelii-infected mice. Sci Rep 2018; 8:8896. [PMID: 29891920 PMCID: PMC5995817 DOI: 10.1038/s41598-018-27073-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 05/24/2018] [Indexed: 12/29/2022] Open
Abstract
Abscisic acid (ABA) is an ancient stress hormone and is detectable in a wide variety of organisms where it regulates innate immunity and inflammation. Previously, we showed that oral supplementation with ABA decreased parasitemia in a mouse model of malaria, decreased liver and spleen pathology and reduced parasite transmission to mosquitoes. Here, we report that higher circulating ABA levels were associated with a reduced risk of symptomatic malaria in a cohort of Plasmodium falciparum-infected Ugandan children. To understand possible mechanisms of ABA protection in malaria, we returned to our mouse model to show that ABA effects on Plasmodium yoelii 17XNL infection were accompanied by minimal effects on complete blood count and blood chemistry analytes, suggesting a benefit to host health. In addition, orally delivered ABA induced patterns of gene expression in mouse liver and spleen that suggested enhancement of host anti-parasite defenses. To test these inferences, we utilized passive immunization and knockout mice to demonstrate that ABA supplementation increases circulating levels of protective, parasite-specific IgG and requires caspase-1 to reduce parasitemia. Collectively, ABA induces host responses that ameliorate infection and disease in an animal model and suggest that further studies of ABA in the context of human malaria are warranted.
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148
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Äyräväinen L, Heikkinen AM, Kuuliala A, Ahola K, Koivuniemi R, Laasonen L, Moilanen E, Hämäläinen M, Tervahartiala T, Meurman JH, Leirisalo-Repo M, Sorsa T. Inflammatory biomarkers in saliva and serum of patients with rheumatoid arthritis with respect to periodontal status. Ann Med 2018; 50:333-344. [PMID: 29683364 DOI: 10.1080/07853890.2018.1468922] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
OBJECTIVE To study prospectively the association of salivary and serum matrix metalloproteinase (MMP)-8, tissue inhibitor of MMPs (TIMP)-1 and interleukin (IL)-6 with periodontal and systemic inflammation in rheumatoid arthritis (RA). We hypothesized that biomarker concentrations reflect inflammation. METHODS Fifty three early untreated RA (ERA) and 28 chronic RA (CRA) patients, underwent rheumatological and dental examinations at baseline and one year later after starting first conventional or biological disease modifying antirheumatic drug. We included 43 control subjects. Saliva and serum samples were analyzed for MMP-8, TIMP-1 and IL-6. Periodontal health was assessed by bleeding on probing (BOP), pocket depth (PD) and periodontal inflammatory burden index (PIBI); RA disease activity was assessed by disease activity score DAS28. Joint destruction was analyzed by the modified Sharp-van der Heijde (SHS) method. RESULTS Serum MMP-8 (p < .001; p < .001) and IL-6 (p < .001; p = .002) were significantly higher in CRA vs. other study groups during the study. Salivary MMP-8 (p = .010) and IL-6 (p = .010) were significantly higher in ERA vs. other study groups at baseline. Salivary MMP-8 was associated with periodontal parameters. CONCLUSION Elevated serum concentrations of MMP-8 and IL-6 in CRA patients reflected chronic RA, while elevated salivary concentrations of MMP-8 levels in ERA patients reflected increased periodontal inflammation. Key messages Concentrations of inflammatory biomarkers in serum and saliva were different between patients with RA and healthy controls. Concentrations of MMP-8 and of IL-6 in serum were elevated in patients with chronic RA reflecting joint inflammation and the burden of established RA. Concentrations of MMP-8 in saliva was elevated already at the early stage of RA and the level of salivary MMP-8 was associated with poor periodontal health both in patients with early and in those with chronic RA.
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Affiliation(s)
- Leena Äyräväinen
- a Department of Oral and Maxillofacial Diseases , University of Helsinki and Helsinki University Hospital , Helsinki , Finland
| | - Anna Maria Heikkinen
- a Department of Oral and Maxillofacial Diseases , University of Helsinki and Helsinki University Hospital , Helsinki , Finland
| | - Antti Kuuliala
- b Department of Bacteriology and Immunology , University of Helsinki and Helsinki University Hospital , Helsinki , Finland
| | - Kirsi Ahola
- a Department of Oral and Maxillofacial Diseases , University of Helsinki and Helsinki University Hospital , Helsinki , Finland
| | - Riitta Koivuniemi
- c Department of Rheumatology , University of Helsinki and Helsinki University Hospital , Helsinki , Finland
| | - Leena Laasonen
- d Department of Radiology , University of Helsinki and Helsinki University Hospital , Helsinki , Finland
| | - Eeva Moilanen
- e Immunopharmacology Research Group, University of Tampere School of Medicine and Tampere University Hospital , Tampere , Finland
| | - Mari Hämäläinen
- e Immunopharmacology Research Group, University of Tampere School of Medicine and Tampere University Hospital , Tampere , Finland
| | - Taina Tervahartiala
- a Department of Oral and Maxillofacial Diseases , University of Helsinki and Helsinki University Hospital , Helsinki , Finland
| | - Jukka H Meurman
- a Department of Oral and Maxillofacial Diseases , University of Helsinki and Helsinki University Hospital , Helsinki , Finland
| | - Marjatta Leirisalo-Repo
- c Department of Rheumatology , University of Helsinki and Helsinki University Hospital , Helsinki , Finland
| | - Timo Sorsa
- a Department of Oral and Maxillofacial Diseases , University of Helsinki and Helsinki University Hospital , Helsinki , Finland.,f Department of Dental Medicine , Karolinska Institute , Huddinge , Sweden
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Modulation of diabetes-related liver injury by the HMGB1/TLR4 inflammatory pathway. J Physiol Biochem 2018; 74:345-358. [DOI: 10.1007/s13105-018-0626-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 03/25/2018] [Indexed: 12/11/2022]
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