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Scola L, Ferraro D, Sanfilippo GL, De Grazia S, Lio D, Giammanco GM. Age and Cytokine Gene Variants Modulate the Immunogenicity and Protective Effect of SARS-CoV-2 mRNA-Based Vaccination. Vaccines (Basel) 2023; 11:vaccines11020413. [PMID: 36851291 PMCID: PMC9962548 DOI: 10.3390/vaccines11020413] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/05/2023] [Accepted: 02/09/2023] [Indexed: 02/16/2023] Open
Abstract
The introduction of anti-SARS-CoV-2 vaccines in late 2020 substantially changed the pandemic picture, inducing effective protection in the population. However, individual variability was observed with different levels of cellular response and neutralizing antibodies. We report data on the impact of age, gender, and 16 single nucleotide polymorphisms (SNPs) of cytokine genes on the anti-SARS-CoV-2 IgG titers measured 31 and 105 days after administration of the second dose of BNT162b2 vaccine to 122 healthy subjects from the health care staff of the Palermo University Hospital, Italy. The higher titers at 31 days were measured in the younger subjects and in subjects bearing T-positive genotypes of IL-1R1 rs2234650 or the GG homozygous genotype of IL-6 rs1800795 SNP. T-positive genotypes are also significantly more common in subjects with higher titers at day 105. In addition, in this group of subjects, the frequency of the CT genotype of IL-4 rs2243250 is higher among those vaccinated with higher titers. Moreover, these SNPs and TNFA rs1800629 are differently distributed in a group of subjects that were found infected by SARS-CoV-2 at day 105 of evaluation. Finally, subjects that were found to be infected by SARS-CoV-2 at day 105 were significantly older than the uninfected subjects. Taken together, these data seem to suggest that age and polymorphisms of key cytokines, which regulate inflammation and humoral immune response, might influence the magnitude of the antibody response to vaccination with BNT162B2, prompting speculation about the possible benefit of a genetic background-based assessment of a personalized approach to the anti-COVID vaccination schedule.
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Affiliation(s)
- Letizia Scola
- Clinical Pathology, Department of Biomedicine, Neuroscience and Advanced Diagnostics (Bi.N.D.), University of Palermo, Corso Tukory, 211, 90134 Palermo, Italy
| | - Donatella Ferraro
- Microbiology, Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, 90133 Palermo, Italy
| | - Giuseppa Luisa Sanfilippo
- Microbiology, Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, 90133 Palermo, Italy
| | - Simona De Grazia
- Microbiology, Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, 90133 Palermo, Italy
| | - Domenico Lio
- Interdepartmental Research Center “Migrate”, University of Palermo, 90133 Palermo, Italy
- Correspondence: ; Tel.: +39-91-6555913
| | - Giovanni Maurizio Giammanco
- Microbiology, Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, 90133 Palermo, Italy
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Ruscitti P, Ursini F, Berardicurti O, Masedu F, Bozzalla Cassione E, Naldi S, Di Cola I, Di Muzio C, De Stefano L, Di Nino E, Navarini L, Vomero M, Bugatti S, Valenti M, Mariani E, Iagnocco A, Montecucco C, Giacomelli R, Cipriani P. Cytokine profile, ferritin and multi-visceral involvement characterize macrophage activation syndrome during adult-onset Still's disease. Rheumatology (Oxford) 2022; 62:321-329. [PMID: 35438139 DOI: 10.1093/rheumatology/keac247] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 04/01/2022] [Accepted: 04/01/2022] [Indexed: 12/27/2022] Open
Abstract
OBJECTIVES To multidimensionally characterize macrophage activation syndrome (MAS) complicating adult-onset Still's disease (AOSD) considering cytokine profile, inflammatory markers and multi-visceral involvement of the disease. To perform a high-dimensional phenotypic analysis of circulating immune cells in AOSD patients with and without MAS. To assess interferon (IFN)-related pathways in AOSD synovial tissues by a bulky RNA sequencing. METHODS Clinical and biologic data were collected and compared in AOSD patients with and without MAS. Sera biomolecules were analysed by Luminex multiplexing technology. Mass cytometry (CyTOF) was used to characterize circulating immune cells. A bulky RNA sequencing was performed in AOSD synovial tissues. RESULTS Forty consecutive AOSD patients were assessed, 14 complicated with MAS. Paralleling with increases of systemic score and ferritin, MAS patients showed higher levels of IL-1α, IL-1β, IL-1Ra, IL-2Ra, IL-6, IL-10, IL-17A, IFN-γ, G-CSF, MCP-1, MIP-1α and SCF. Combining the discriminatory ability of these data in identifying MAS, the best model was composed by systemic score, ferritin, IFN-γ and IL-10. By CyTOF analysis, MAS patients showed an increase of circulating 'classical monocytes' and a reduction of total NK cells. Our assessment showed 3477 IFN-related genes (IRGs) were differently expressed in AOSD synovial tissues. CONCLUSIONS A multidimensional characterization of AOSD patients suggested that IFN-γ, IL-10, ferritin and systemic score discriminated the occurrence of cytokine storm syndrome associated with MAS. The inflammatory milieu of AOSD and MAS may be related to a signature of circulating immune cells. Finally, our results about IRGs reinforced the role of IFN-γ in these patients.
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Affiliation(s)
- Piero Ruscitti
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila
| | - Francesco Ursini
- Rheumatology Unit, IRCCS Istituto Ortopedico Rizzoli.,Department of Biomedical and Neuromotor Sciences, Alma Mater Studiorum University of Bologna, Bologna
| | - Onorina Berardicurti
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila
| | - Francesco Masedu
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila.,Academy of Sciences of Abruzzo Region, Abruzzo
| | | | - Susanna Naldi
- Rheumatology Unit, IRCCS Istituto Ortopedico Rizzoli.,Department of Biomedical and Neuromotor Sciences, Alma Mater Studiorum University of Bologna, Bologna
| | - Ilenia Di Cola
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila
| | - Claudia Di Muzio
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila
| | - Ludovico De Stefano
- Rheumatology Department, Fondazione IRCCS Policlinico San Matteo, University of Pavia, Pavia
| | - Elena Di Nino
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila
| | - Luca Navarini
- Rheumatology and Immunology Unit, Department of Medicine, University of Rome Campus Biomedico, Rome
| | - Marta Vomero
- Rheumatology and Immunology Unit, Department of Medicine, University of Rome Campus Biomedico, Rome
| | - Serena Bugatti
- Rheumatology Department, Fondazione IRCCS Policlinico San Matteo, University of Pavia, Pavia
| | - Marco Valenti
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila
| | - Erminia Mariani
- Department of Medical and Surgical Sciences, Alma Mater Studiorum University of Bologna.,Laboratory of Immunorheumatology and Tissue Regeneration, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto Ortopedico Rizzoli, Bologna
| | - Annamaria Iagnocco
- Academic Rheumatology Centre, Ospedale Mauriziano - Dipartimento Scienze Cliniche e Biologiche, Università degli Studi di Torino, Turin, Italy
| | | | - Roberto Giacomelli
- Rheumatology and Immunology Unit, Department of Medicine, University of Rome Campus Biomedico, Rome
| | - Paola Cipriani
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila
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Tsioufis P, Theofilis P, Tsioufis K, Tousoulis D. The Impact of Cytokines in Coronary Atherosclerotic Plaque: Current Therapeutic Approaches. Int J Mol Sci 2022; 23:ijms232415937. [PMID: 36555579 PMCID: PMC9788180 DOI: 10.3390/ijms232415937] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/12/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022] Open
Abstract
Coronary atherosclerosis is a chronic pathological process that involves inflammation together with endothelial dysfunction and lipoprotein dysregulation. Experimental studies during the past decades have established the role of inflammatory cytokines in coronary artery disease, namely interleukins (ILs), tumor necrosis factor (TNF)-α, interferon-γ, and chemokines. Moreover, their value as biomarkers in disease development and progression further enhance the validity of this interaction. Recently, cytokine-targeted treatment approaches have emerged as potential tools in the management of atherosclerotic disease. IL-1β, based on the results of the CANTOS trial, remains the most validated option in reducing the residual cardiovascular risk. Along the same line, colchicine was also proven efficacious in preventing major adverse cardiovascular events in large clinical trials of patients with acute and chronic coronary syndrome. Other commercially available agents targeting IL-6 (tocilizumab), TNF-α (etanercept, adalimumab, infliximab), or IL-1 receptor antagonist (anakinra) have mostly been assessed in the setting of other inflammatory diseases and further testing in atherosclerosis is required. In the future, potential targeting of the NLRP3 inflammasome, anti-inflammatory IL-10, or atherogenic chemokines could represent appealing options, provided that patient safety is proven to be of no concern.
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Pyroptosis and Insulin Resistance in Metabolic Organs. Int J Mol Sci 2022; 23:ijms231911638. [PMID: 36232938 PMCID: PMC9570443 DOI: 10.3390/ijms231911638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 09/27/2022] [Accepted: 09/28/2022] [Indexed: 11/09/2022] Open
Abstract
Skeletal muscle serves as the optimal effective organ to balance glucose homeostasis, but insulin resistance (IR) in skeletal muscle breaks this balance by impeding glucose uptake and causes metabolic disorders. IR in skeletal muscle is caused by multiple factors, and it has been reported that systemic low-grade inflammation is related to skeletal muscle IR, though its molecular mechanisms need to be ulteriorly studied. Pyroptosis is a novel inflammatory-mediated type of cell death. It has recently been reported that pyroptosis is associated with a decline in insulin sensitivity in skeletal muscle. The appropriate occurrence of pyroptosis positively eliminates pathogenic factors, whereas its excessive activation may aggravate inflammatory responses and expedite disease progression. The relationship between pyroptosis and IR in skeletal muscle and its underlined mechanism need to be further illustrated. The role of pyroptosis during the process of IR alleviation induced by non-drug interventions, such as exercise, also needs to be clarified. In this paper, we review and describe the molecular mechanisms of pyroptosis and further comb the roles of its relevant key factors in skeletal muscle IR, aiming to propose a novel theoretical basis for the relationship between pyroptosis and muscle IR and provide new research targets for the improvement of IR-related diseases.
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Coutinho LLC, Oliveira CN, Albuquerque PLMM, Mota SMB, Meneses GC, Martins AMC, Junior GBS, Clementino MAF, Gondim RNDG, Havt A, Cavalcanti LPG, Yaochite JNU. Elevated IL-18 predicts poor prognosis in critically ill COVID-19 patients at a Brazilian hospital in 2020–21. Future Microbiol 2022; 17:1287-1294. [PMID: 36111789 PMCID: PMC9488117 DOI: 10.2217/fmb-2022-0057] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Background: A dysregulated inflammatory response contributes to decline in patients with COVID-19. This cross-sectional study evaluated biomarkers of unvaccinated patients admitted to the intensive care unit of a hospital in Fortaleza, Brazil. Methods: Twenty cytokines were quantified upon hospital admission; clinical and laboratory data were analyzed, as well as sociodemographic data, to search for an association with clinical outcomes, including fatal (n = 40) or recovered cases (n = 38). Results: Fatal cases exhibited significantly higher levels of IL-18 (p = 0.009); deceased patients were older (p = 0.0001), had a lower number of platelets (p = 0.0063) and higher neutrophil–lymphocyte ratio (p = 0.0230) than those who recovered. Conclusion: These findings indicate that IL-18 is a possible marker to predict poor prognosis in critically ill patients with COVID-19.
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Affiliation(s)
- Lucyana LC Coutinho
- School of Medicine, Federal University of Ceará, Fortaleza, Ceará, 60430-160, Brazil
| | - Caroline N Oliveira
- School of Medicine, Federal University of Ceará, Fortaleza, Ceará, 60430-160, Brazil
| | - Polianna LMM Albuquerque
- Dr. José Frota Institute, Fortaleza, Ceará, 60025-061, Brazil
- University of Fortaleza, Fortaleza, Ceará, 60811-905, Brazil
| | - Sandra MB Mota
- School of Medicine, Federal University of Ceará, Fortaleza, Ceará, 60430-160, Brazil
- Dr. José Frota Institute, Fortaleza, Ceará, 60025-061, Brazil
| | - Gdayllon C Meneses
- School of Medicine, Federal University of Ceará, Fortaleza, Ceará, 60430-160, Brazil
| | - Alice MC Martins
- Faculty of Pharmacy, Dentistry & Nursing, Federal University of Ceará, Fortaleza, Ceará, 60430-370, Brazil
| | - Geraldo BS Junior
- Dr. José Frota Institute, Fortaleza, Ceará, 60025-061, Brazil
- University of Fortaleza, Fortaleza, Ceará, 60811-905, Brazil
| | - Marco AF Clementino
- School of Medicine, Federal University of Ceará, Fortaleza, Ceará, 60430-160, Brazil
| | - Rafhaella NDG Gondim
- School of Medicine, Federal University of Ceará, Fortaleza, Ceará, 60430-160, Brazil
| | - Alexandre Havt
- School of Medicine, Federal University of Ceará, Fortaleza, Ceará, 60430-160, Brazil
| | - Luciano PG Cavalcanti
- School of Medicine, Federal University of Ceará, Fortaleza, Ceará, 60430-160, Brazil
| | - Juliana NU Yaochite
- Faculty of Pharmacy, Dentistry & Nursing, Federal University of Ceará, Fortaleza, Ceará, 60430-370, Brazil
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AKT Isoforms in Macrophage Activation, Polarization, and Survival. Curr Top Microbiol Immunol 2022; 436:165-196. [DOI: 10.1007/978-3-031-06566-8_7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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7
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Zhu N, Zheng X, Qiao W, Huang W, Li R, Song Y. Activation of GATA-binding protein 4 regulates monocyte chemoattractant protein-1 and chemotaxis in periodontal ligament cells. J Periodontal Res 2021; 57:195-204. [PMID: 34773653 DOI: 10.1111/jre.12953] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/14/2021] [Accepted: 10/30/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND OBJECTIVES Periodontitis is a chronic inflammatory disease of periodontal supporting tissues. The persistent inflammatory reaction depends on the release of chemokines to continuously recruit inflammation cells. GATA-binding protein 4 (GATA4) exerts effects on senescence and inflammation, while its role in periodontitis is far from clear. The present study aims to address the effect of GATA4 on regulating chemokines and the chemotaxis in periodontitis. MATERIAL AND METHODS Periodontitis rat models were constructed to detect the expression of GATA4 and the chemokine monocyte chemoattractant protein-1 (MCP-1) by immunohistochemistry. Lipopolysaccharide (LPS)-stimulated human periodontal ligament (PDL) cells and GATA4-knockdown by siRNA transient transfection PDL cells were used to explore the correlation between GATA4 and chemokines. Transwell assay was performed to detect the role of GATA4 for the recruitment effect of chemokines on macrophages. Mitogen-activated protein kinase (MAPK) inhibitors were scheduled to intervene in LPS-stimulated PDL cells to examine the association between MAPK signaling pathways and GATA4. The expression of GATA4, chemokines, or MAPK signaling molecules was determined by quantitative real-time polymerase chain reaction, western blotting, or cell immunofluorescence. RESULTS The expression of GATA4 and MCP-1 was significantly increased in periodontitis rat models and in LPS-stimulated PDL cells. Knockdown GATA4 inhibited the expression of GATA4 and MCP-1 as well as suppressed the recruitment of macrophage in LPS-stimulated PDL cells. Inhibitors of p38 and ERK1/2 signaling pathways significantly downregulated the increased expression of GATA4 and MCP-1 induced by LPS in PDL cells. CONCLUSIONS GATA-binding protein 4 could act as an upstream regulator of MCP-1 and as a downstream regulator of p38 and ERK1/2 signaling pathways to initiate inflammation response and regulate chemotaxis during the progression of periodontitis.
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Affiliation(s)
- Ningjing Zhu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei_MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Xueqing Zheng
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei_MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Weiwei Qiao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei_MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Wushuang Huang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei_MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Ruiqi Li
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei_MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Yaling Song
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei_MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
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8
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Wang Y, Wu H, Deng R. Angiogenesis as a potential treatment strategy for rheumatoid arthritis. Eur J Pharmacol 2021; 910:174500. [PMID: 34509462 DOI: 10.1016/j.ejphar.2021.174500] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Revised: 08/04/2021] [Accepted: 09/06/2021] [Indexed: 12/15/2022]
Abstract
Angiogenesis is an early and key event in the pathogenesis of rheumatoid arthritis (RA) and is crucial for the proliferation of synovial tissue and the formation of pannus. This process is regulated by both angiogenesis-stimulating factors and angiogenesis inhibitors, the basis for the "on-off hypothesis of angiogenesis." In RA, inflammation, immune imbalance, and hypoxia can further turn on the switch for blood vessel formation and induce angiogenesis. The new vasculature can recruit white blood cells, induce immune imbalance, and aggravate inflammation. At the same time, it also can provide oxygen and nutrients for the proliferating synovial tissue, which can accelerate the process of RA. The current therapies for RA mainly target the inflammatory response of autoimmune activation. Although these therapies have been greatly improved, there are still many patients whose RA is difficult to treat or who do not fully respond to treatment. Therefore, new innovative therapies are still urgently needed. This review covers the mechanism of synovial angiogenesis in RA, including the detailed process of angiogenesis and the relationship between inflammation, immune imbalance, hypoxia, and synovial angiogenesis, respectively. At the same time, in the context of the development of angiogenesis inhibition therapy for cancer, we also discuss similar treatment strategies for RA, especially the combination of targeted angiogenesis inhibition therapy and immunotherapy.
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Affiliation(s)
- Yan Wang
- College of Pharmacy, Anhui University of Chinese Medicine, Qian Jiang Road 1, Hefei, 230012, China; Key Laboratory of Xin'an Medicine, Ministry of Education, Hefei, 230012, China; Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Hefei, 230012, China; Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, 230012, China
| | - Hong Wu
- College of Pharmacy, Anhui University of Chinese Medicine, Qian Jiang Road 1, Hefei, 230012, China; Key Laboratory of Xin'an Medicine, Ministry of Education, Hefei, 230012, China; Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Hefei, 230012, China; Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, 230012, China.
| | - Ran Deng
- College of Pharmacy, Anhui University of Chinese Medicine, Qian Jiang Road 1, Hefei, 230012, China; Key Laboratory of Xin'an Medicine, Ministry of Education, Hefei, 230012, China; Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Hefei, 230012, China; Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, 230012, China
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Behura A, Das M, Kumar A, Naik L, Mishra A, Manna D, Patel S, Mishra A, Singh R, Dhiman R. ESAT-6 impedes IL-18 mediated phagosome lysosome fusion via microRNA-30a upon Calcimycin treatment in mycobacteria infected macrophages. Int Immunopharmacol 2021; 101:108319. [PMID: 34740079 DOI: 10.1016/j.intimp.2021.108319] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 10/05/2021] [Accepted: 10/25/2021] [Indexed: 01/18/2023]
Abstract
The weaponry possessed by Mycobacterium tuberculosis (M. tb) in the form of immunodominant antigens hijack the host immune system to give a survival advantage to this intracellular fiend, but the mechanism of this control is not entirely known. Since we have previously reported the mechanism of autophagy inhibition by early secreted antigenic target 6 kDa (ESAT-6) through microRNA (miR)-30a-3p in Calcimycin treated differentiated THP-1 (dTHP-1) cells, the present study was undertaken to deduce the effect of miR-30a on the immunomodulatory profile of ESAT-6 treated cells and the mechanism involved thereof, if any. Initially, the effect of recombinant ESAT-6 (rESAT-6) on the immunomodulatory profile in Calcimycin-treated phorbol 12-myristate 13-acetate (PMA) dTHP-1 cells was checked. Later, transfection studies using miR-30a-3p inhibitor or -5p mimic highlighted the contrary roles of different arms of the same miRNA in regulating IL-18 response by ESAT-6 in dTHP-1 cells after Calcimycin treatment. By using either IL-18 neutralizing antibody or inhibitors of phosphoinositide 3-kinase (PI3K)/NF-κB/phagosome-lysosome fusion in the miRNA-30a transfected background, IL-18 mediated signaling and intracellular killing of mycobacteria was reversed in the presence of ESAT-6. Overall, the results of this study conclusively prove the contrary roles of miR-30a-3p and miR-30a-5p in regulating IL-18 signaling by ESAT-6 in dTHP-1 cells upon Calcimycin treatment that affected phagosome-lysosome fusion and intracellular survival of mycobacteria.
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Affiliation(s)
- Assirbad Behura
- Laboratory of Mycobacterial Immunology, Department of Life Science, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Mousumi Das
- Laboratory of Mycobacterial Immunology, Department of Life Science, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Ashish Kumar
- Laboratory of Mycobacterial Immunology, Department of Life Science, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Lincoln Naik
- Laboratory of Mycobacterial Immunology, Department of Life Science, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Abtar Mishra
- Laboratory of Mycobacterial Immunology, Department of Life Science, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Debraj Manna
- Laboratory of Mycobacterial Immunology, Department of Life Science, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Salina Patel
- Laboratory of Mycobacterial Immunology, Department of Life Science, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Amit Mishra
- Cellular and Molecular Neurobiology Unit, Indian Institute of Technology Jodhpur, Rajasthan 342011, India
| | - Ramandeep Singh
- Tuberculosis Research Laboratory, Vaccine and Infectious Disease Research Centre, Translational Health Science and Technology Institute, NCR Biotech Science Cluster, 3rd Milestone, Faridabad-Gurugram Expressway, PO Box # 4, Faridabad 121001, Haryana, India
| | - Rohan Dhiman
- Laboratory of Mycobacterial Immunology, Department of Life Science, National Institute of Technology, Rourkela 769008, Odisha, India.
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Chen Y, Li Y, Guo H, Zhang Z, Zhang J, Dong X, Liu Y, Zhuang Y, Zhao Y. The Effects of Adoptively Transferred IL-23/IL-18-Polarized Neutrophils on Tumor and Collagen-Induced Arthritis in Mice. J Inflamm Res 2021; 14:4669-4686. [PMID: 34557012 PMCID: PMC8453247 DOI: 10.2147/jir.s329528] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 09/04/2021] [Indexed: 12/04/2022] Open
Abstract
Background Neutrophils present great diverse phenotypes in various microenvironments and play different immune regulatory functions. Neutrophils generally classified into inflammatory phenotype N1 and anti-informatory phenotype N2. Our recent studies showed that IL-23 alone stimulated neutrophils to express IL-17A, IL-17F and IL-22 and displayed a gene transcriptional profile similar to Th17 cells. In the present study, we tried to identify potential cytokines to promote IL-23-induced neutrophil polarization. Methods Mouse bone marrow-derived neutrophils and human peripheral blood neutrophils were treated with IL-23 (10 ng/mL) plus IL-18 (25 ng/mL) to induce Th17-like subset in vitro and detected by real-time PCR, flow cytometry, ELISA, immunofluorescence and RNA-seq assays. In vivo, collagen-induced arthritis (CIA) mouse model and EL4 tumor-bearing mouse model were used to characterize the potential roles of N(IL-23+IL-18) in inflammation and tumor. Results Real-time PCR, ELISA and flow cytometry assays showed that IL-18 could significantly enhance IL-23-induced IL-17A, IL-17F and IL-22 expressions in mouse and human neutrophils in a synergistic way, although IL-18 alone failed to induce these cytokines expression. RNA-seq and molecular studies showed that the polarization of N(IL-23+IL-18) is mainly mediated by the JNK/p38-STAT3-BATF signaling pathway. Adoptive transfer of the induced N(IL-23+IL-18) neutrophils significantly accelerated the tumor growth in EL4 tumor-bearing mice and enhanced disease progression in the CIA mouse model. IL-17A-deficient N(IL-23+IL-18) neutrophils failed to enhance the CIA pathogenesis in this model, suggesting that IL-17A may be involved in the N(IL-23+IL-18) neutrophils-promoted arthritis in mice. Conclusion The Th17-type subpopulation N(IL-23+IL-18) has pro-tumor and pro-inflammatory properties. Recognizing the different functional polarization of neutrophils would significantly help us to understand the distinctive protective/pathological roles of neutrophils in physiological and different pathological situations.
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Affiliation(s)
- Yifang Chen
- Department of State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Yang Li
- Department of State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Han Guo
- Department of State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, People's Republic of China.,Savaid Medical School, University of Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Zhaoqi Zhang
- Department of State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, People's Republic of China.,Savaid Medical School, University of Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Jiayu Zhang
- Department of State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, People's Republic of China.,Savaid Medical School, University of Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Xue Dong
- Department of State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Yi Liu
- Department of Blood Transfusion, First Medical Center of Chinese PLA General Hospital, Beijing, People's Republic of China
| | - Yuan Zhuang
- Department of Blood Transfusion, First Medical Center of Chinese PLA General Hospital, Beijing, People's Republic of China
| | - Yong Zhao
- Department of State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, People's Republic of China.,Department of State Key Laboratory of Membrane Biology, Institute for Stem Cell and Regeneration, Chinese Academy of Science, Beijing, People's Republic of China
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11
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Simons P, Guo Y, Bondu V, Tigert SL, Harkins M, Goodfellow S, Tompkins C, Chabot-Richards D, Yang XO, Bosc LG, Bradfute S, Lawrence DA, Buranda T. Longitudinal Assessment of Cytokine Expression and Plasminogen Activation in Hantavirus Cardiopulmonary Syndrome Reveals Immune Regulatory Dysfunction in End-Stage Disease. Viruses 2021; 13:1597. [PMID: 34452463 PMCID: PMC8402847 DOI: 10.3390/v13081597] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 07/31/2021] [Accepted: 08/06/2021] [Indexed: 12/11/2022] Open
Abstract
Pathogenic New World orthohantaviruses cause hantavirus cardiopulmonary syndrome (HCPS), a severe immunopathogenic disease in humans manifested by pulmonary edema and respiratory distress, with case fatality rates approaching 40%. High levels of inflammatory mediators are present in the lungs and systemic circulation of HCPS patients. Previous studies have provided insights into the pathophysiology of HCPS. However, the longitudinal correlations of innate and adaptive immune responses and disease outcomes remain unresolved. This study analyzed serial immune responses in 13 HCPS cases due to Sin Nombre orthohantavirus (SNV), with 11 severe cases requiring extracorporeal membrane oxygenation (ECMO) treatment and two mild cases. We measured viral load, levels of various cytokines, urokinase plasminogen activator (uPA), and plasminogen activator inhibitor-1 (PAI-1). We found significantly elevated levels of proinflammatory cytokines and PAI-1 in five end-stage cases. There was no difference between the expression of active uPA in survivors' and decedents' cases. However, total uPA in decedents' cases was significantly higher compared to survivors'. In some end-stage cases, uPA was refractory to PAI-1 inhibition as measured by zymography, where uPA and PAI-1 were strongly correlated to lymphocyte counts and IFN-γ. We also found bacterial co-infection influencing the etiology and outcome of immune response in two cases. Unsupervised Principal Component Analysis and hierarchical cluster analyses resolved separate waves of correlated immune mediators expressed in one case patient due to a sequential co-infection of bacteria and SNV. Overall, a robust proinflammatory immune response, characterized by an imbalance in T helper 17 (Th17) and regulatory T-cells (Treg) subsets, was correlated with dysregulated inflammation and mortality. Our sample size is small; however, the core differences correlated to survivors and end-stage HCPS are instructive.
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Affiliation(s)
- Peter Simons
- Department of Pathology, University of New Mexico School of Medicine, Albuquerque, NM 87131, USA; (P.S.); (V.B.); (C.T.); (D.C.-R.)
| | - Yan Guo
- Bioinformatics Shared Resource Center, Division of Molecular Medicine, Department of Internal Medicine, University of New Mexico Comprehensive Cancer Center, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA;
| | - Virginie Bondu
- Department of Pathology, University of New Mexico School of Medicine, Albuquerque, NM 87131, USA; (P.S.); (V.B.); (C.T.); (D.C.-R.)
| | - Susan L. Tigert
- Clinical and Translational Science Center (CTSC), University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA;
| | - Michelle Harkins
- Division of Infectious Diseases, Department of Internal Medicine, School of Medicine, University of New Mexico, Albuquerque, NM 87131, USA; (M.H.); (S.G.); (S.B.)
| | - Samuel Goodfellow
- Division of Infectious Diseases, Department of Internal Medicine, School of Medicine, University of New Mexico, Albuquerque, NM 87131, USA; (M.H.); (S.G.); (S.B.)
| | - Cana Tompkins
- Department of Pathology, University of New Mexico School of Medicine, Albuquerque, NM 87131, USA; (P.S.); (V.B.); (C.T.); (D.C.-R.)
| | - Devon Chabot-Richards
- Department of Pathology, University of New Mexico School of Medicine, Albuquerque, NM 87131, USA; (P.S.); (V.B.); (C.T.); (D.C.-R.)
| | - Xuexian O. Yang
- Molecular Genetics and Microbiology, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA;
| | - Laura Gonzalez Bosc
- Vascular Physiology Group, Department of Cell Biology and Physiology, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA;
| | - Steven Bradfute
- Division of Infectious Diseases, Department of Internal Medicine, School of Medicine, University of New Mexico, Albuquerque, NM 87131, USA; (M.H.); (S.G.); (S.B.)
| | - Daniel A. Lawrence
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI 48109, USA;
| | - Tione Buranda
- Department of Pathology, University of New Mexico School of Medicine, Albuquerque, NM 87131, USA; (P.S.); (V.B.); (C.T.); (D.C.-R.)
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12
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Reuling IJ, Mendes AM, de Jong GM, Fabra-García A, Nunes-Cabaço H, van Gemert GJ, Graumans W, Coffeng LE, de Vlas SJ, Yang ASP, Lee C, Wu Y, Birkett AJ, Ockenhouse CF, Koelewijn R, van Hellemond JJ, van Genderen PJJ, Sauerwein RW, Prudêncio M. An open-label phase 1/2a trial of a genetically modified rodent malaria parasite for immunization against Plasmodium falciparum malaria. Sci Transl Med 2021; 12:12/544/eaay2578. [PMID: 32434846 DOI: 10.1126/scitranslmed.aay2578] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 04/22/2020] [Indexed: 12/14/2022]
Abstract
For some diseases, successful vaccines have been developed using a nonpathogenic counterpart of the causative microorganism of choice. The nonpathogenicity of the rodent Plasmodium berghei (Pb) parasite in humans prompted us to evaluate its potential as a platform for vaccination against human infection by Plasmodium falciparum (Pf), a causative agent of malaria. We hypothesized that the genetic insertion of a leading protein target for clinical development of a malaria vaccine, Pf circumsporozoite protein (CSP), in its natural pre-erythrocytic environment, would enhance Pb's capacity to induce protective immunity against Pf infection. Hence, we recently generated a transgenic Pb sporozoite immunization platform expressing PfCSP (PbVac), and we now report the clinical evaluation of its biological activity against controlled human malaria infection (CHMI). This first-in-human trial shows that PbVac is safe and well tolerated, when administered by a total of ~300 PbVac-infected mosquitoes per volunteer. Although protective efficacy evaluated by CHMI showed no sterile protection at the tested dose, significant delays in patency (2.2 days, P = 0.03) and decreased parasite density were observed after immunization, corresponding to an estimated 95% reduction in Pf liver parasite burden (confidence interval, 56 to 99%; P = 0.010). PbVac elicits dose-dependent cross-species cellular immune responses and functional PfCSP-dependent antibody responses that efficiently block Pf sporozoite invasion of liver cells in vitro. This study demonstrates that PbVac immunization elicits a marked biological effect, inhibiting a subsequent infection by the human Pf parasite, and establishes the clinical validation of a new paradigm in malaria vaccination.
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Affiliation(s)
- Isaie J Reuling
- Radboud Center for Infectious Diseases, Department of Medical Microbiology, Radboud University Medical Center, 6525 GA Nijmegen, Netherlands
| | - António M Mendes
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, 1649-028 Lisboa, Portugal
| | - Gerdie M de Jong
- Department of Medical Microbiology and Infectious Diseases, Erasmus MC, 3015 GD Rotterdam, Netherlands
| | - Amanda Fabra-García
- Radboud Center for Infectious Diseases, Department of Medical Microbiology, Radboud University Medical Center, 6525 GA Nijmegen, Netherlands
| | - Helena Nunes-Cabaço
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, 1649-028 Lisboa, Portugal
| | - Geert-Jan van Gemert
- Radboud Center for Infectious Diseases, Department of Medical Microbiology, Radboud University Medical Center, 6525 GA Nijmegen, Netherlands
| | - Wouter Graumans
- Radboud Center for Infectious Diseases, Department of Medical Microbiology, Radboud University Medical Center, 6525 GA Nijmegen, Netherlands
| | - Luc E Coffeng
- Department of Public Health, Erasmus MC, University Medical Center Rotterdam, 3015 GD Rotterdam, Netherlands
| | - Sake J de Vlas
- Department of Public Health, Erasmus MC, University Medical Center Rotterdam, 3015 GD Rotterdam, Netherlands
| | - Annie S P Yang
- Radboud Center for Infectious Diseases, Department of Medical Microbiology, Radboud University Medical Center, 6525 GA Nijmegen, Netherlands
| | - Cynthia Lee
- PATH's Malaria Vaccine Initiative, Washington, DC 20001, USA
| | - Yimin Wu
- PATH's Malaria Vaccine Initiative, Washington, DC 20001, USA
| | | | | | - Rob Koelewijn
- Department of Medical Microbiology and Infectious Diseases, Erasmus MC, 3015 GD Rotterdam, Netherlands
| | - Jaap J van Hellemond
- Department of Medical Microbiology and Infectious Diseases, Erasmus MC, 3015 GD Rotterdam, Netherlands
| | - Perry J J van Genderen
- Department of Medical Microbiology and Infectious Diseases, Erasmus MC, 3015 GD Rotterdam, Netherlands. .,Corporate Travel Clinic Erasmus MC, 3015 CP Rotterdam, Netherlands
| | - Robert W Sauerwein
- Radboud Center for Infectious Diseases, Department of Medical Microbiology, Radboud University Medical Center, 6525 GA Nijmegen, Netherlands.
| | - Miguel Prudêncio
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, 1649-028 Lisboa, Portugal.
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13
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Potential Tamoxifen Repurposing to Combat Infections by Multidrug-Resistant Gram-Negative Bacilli. Pharmaceuticals (Basel) 2021; 14:ph14060507. [PMID: 34073235 PMCID: PMC8230278 DOI: 10.3390/ph14060507] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 05/21/2021] [Accepted: 05/21/2021] [Indexed: 12/12/2022] Open
Abstract
The development of new strategic therapies for multidrug-resistant bacteria, like the use of non-antimicrobial approaches and/or drugs repurposed to be used as monotherapies or in combination with clinically relevant antibiotics, has become urgent. A therapeutic alternative for infections by multidrug-resistant Gram-negative bacilli (MDR-GNB) is immune system modulation to improve the infection clearance. We showed that immunocompetent mice pretreated with tamoxifen at 80 mg/kg/d for three days and infected with Acinetobacter baumannii, Pseudomonas aeruginosa, or Escherichia coli in peritoneal sepsis models showed reduced release of the monocyte chemotactic protein-1 (MCP-1) and its signaling pathway interleukin-18 (IL-18), and phosphorylated extracellular signal-regulated kinase 1/2 (ERK1/2). This reduction of MCP-1 induced the reduction of migration of inflammatory monocytes and neutrophils from the bone marrow to the blood. Indeed, pretreatment with tamoxifen in murine peritoneal sepsis models reduced the bacterial load in tissues and blood, and increased mice survival from 0% to 60–100%. Together, these data show that tamoxifen presents therapeutic efficacy against MDR A. baumannii, P. aeruginosa, and E. coli in experimental models of infection and may be a new candidate to be repurposed as a treatment for GNB infections.
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Abbasi S, Uchida S. Multifunctional Immunoadjuvants for Use in Minimalist Nucleic Acid Vaccines. Pharmaceutics 2021; 13:644. [PMID: 34062771 PMCID: PMC8147386 DOI: 10.3390/pharmaceutics13050644] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/25/2021] [Accepted: 04/27/2021] [Indexed: 12/13/2022] Open
Abstract
Subunit vaccines based on antigen-encoding nucleic acids have shown great promise for antigen-specific immunization against cancer and infectious diseases. Vaccines require immunostimulatory adjuvants to activate the innate immune system and trigger specific adaptive immune responses. However, the incorporation of immunoadjuvants into nonviral nucleic acid delivery systems often results in fairly complex structures that are difficult to mass-produce and characterize. In recent years, minimalist approaches have emerged to reduce the number of components used in vaccines. In these approaches, delivery materials, such as lipids and polymers, and/or pDNA/mRNA are designed to simultaneously possess several functionalities of immunostimulatory adjuvants. Such multifunctional immunoadjuvants encode antigens, encapsulate nucleic acids, and control their pharmacokinetic or cellular fate. Herein, we review a diverse class of multifunctional immunoadjuvants in nucleic acid subunit vaccines and provide a detailed description of their mechanisms of adjuvanticity and induction of specific immune responses.
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Affiliation(s)
- Saed Abbasi
- Innovation Center of NanoMedicine, Kawasaki Institute of Industrial Promotion, 3-25-14 Tonomachi, Kawasaki-ku, Kawasaki 210-0821, Japan
| | - Satoshi Uchida
- Innovation Center of NanoMedicine, Kawasaki Institute of Industrial Promotion, 3-25-14 Tonomachi, Kawasaki-ku, Kawasaki 210-0821, Japan
- Medical Chemistry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 1-5 Shimogamohangi-cho, Sakyo-ku, Kyoto 606-0823, Japan
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15
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Kaur H, Moreau R. Curcumin steers THP-1 cells under LPS and mTORC1 challenges toward phenotypically resting, low cytokine-producing macrophages. J Nutr Biochem 2020; 88:108553. [PMID: 33220404 DOI: 10.1016/j.jnutbio.2020.108553] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 10/07/2020] [Accepted: 11/02/2020] [Indexed: 12/13/2022]
Abstract
The persistent activation of intestinal mechanistic target of rapamycin complex 1 (mTORC1) triggered by mucosal stress has been linked to deregulation of the gut immune response resulting in intestinal inflammation and cell death. The present study investigated the regulatory properties of food-derived mTORC1 modulators, curcumin, and piperine, toward the polarization of stimulated macrophages and the differentiation of monocytes at two mTORC1 activity levels (baseline and elevated). To that end, we created stable human THP-1 monocytes exhibiting normal or constitutively active mTORC1. Curcumin or its combination with piperine, but not piperine alone, suppressed mTORC1 kinase activity, curtailed lipopolysaccharide-mediated inflammatory response of THP-1 macrophages, and repressed macrophage activation by inhibiting signaling pathways involved in M1 (mTORC1) and M2 (mTORC2 and cAMP response element binding protein) polarization. The effects of piperine in the curcumin/piperine combination were modest overall, indicating it was curcumin that modulated differentiating monocytes into acquiring a M0 macrophage phenotype characterized by low inflammatory cytokine output.
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Affiliation(s)
- Harleen Kaur
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Régis Moreau
- Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, USA.
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16
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Association between polymorphisms in interleukin-18 promoter and risk of coronary artery disease: a meta-analysis. Biosci Rep 2020; 39:220955. [PMID: 31661113 PMCID: PMC6863765 DOI: 10.1042/bsr20192721] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 10/17/2019] [Accepted: 10/25/2019] [Indexed: 12/11/2022] Open
Abstract
Background: Previous studies have explored associations between interleukin-18 (IL-18) promoter polymorphisms and coronary artery disease (CAD). However, the results were controversial. We conducted a meta-analysis to clarify the association between the two polymorphisms and CAD risk. Methods: We searched English and Chinese databases and calculated the odds ratio (OR) and 95% confidence interval (CI) to estimate whether there are genetic associations between IL-18 promoter polymorphisms and the risk of CAD. All relevant studies were screened and meta-analyzed using STATA 15.0. Results: A total of 15 studies, including 12 studies for -137 G/C and 9 studies for -607 C/A, were identified for the meta-analysis. For -137 G/C, the results showed a significantly reduced risk of CAD in the dominant model (OR = 0.85) and heterozygous model (OR = 0.88) in the overall analysis. However, in subgroup analysis, decreased CAD risks were only observed in Asian populations for heterozygous genetic models. For -607 C/A, the overall OR revealed a reduced risk of CAD in all five genetic models (allelic, OR = 0.78; recessive, OR = 0.75; dominant, OR = 0.68; homozygous, OR = 0.61; heterozygous, OR = 0.72). In subgroup analysis, reduced CAD risk was also found in five genetic models of the Asian population. We also found that the IL-18 polymorphisms were correlated with myocardial infarction (MI) and multivessel (MV) disease. Conclusion: Our results suggested that the -137 polymorphism and -607 polymorphism in the IL-18 promoter were negatively associated with CAD, especially in the Asian population. In addition, some genetic models were correlated with the severity of CAD.
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17
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Castillo-Dela Cruz P, Wanek AG, Kumar P, An X, Elsegeiny W, Horne W, Fitch A, Burr AHP, Gopalakrishna KP, Chen K, Methé BA, Canna SW, Hand TW, Kolls JK. Intestinal IL-17R Signaling Constrains IL-18-Driven Liver Inflammation by the Regulation of Microbiome-Derived Products. Cell Rep 2020; 29:2270-2283.e7. [PMID: 31747600 PMCID: PMC6886715 DOI: 10.1016/j.celrep.2019.10.042] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 09/04/2019] [Accepted: 10/10/2019] [Indexed: 12/18/2022] Open
Abstract
Interleukin (IL)-17 signaling to the intestinal epithelium regulates the intestinal microbiome. Given the reported links between intestinal dysbiosis, bacterial translocation, and liver disease, we hypothesize that intestinal IL-17R signaling plays a critical role in mitigating hepatic inflammation. To test this, we study intestinal epithelium-specific IL-17RA-deficient mice in an immune-driven hepatitis model. At the naive state, these mice exhibit microbiome dysbiosis and increased translocation of bacterial products (CpG DNA), which drives liver IL-18 production. Upon disease induction, absence of enteric IL-17RA signaling exacerbates hepatitis and hepatocyte cell death. IL-18 is necessary for disease exacerbation and is associated with increased activated hepatic lymphocytes based on Ifng and Fasl expression. Thus, intestinal IL-17R regulates translocation of TLR9 ligands and constrains susceptibility to hepatitis. These data connect enteric Th17 signaling and the microbiome in hepatitis, with broader implications on the effects of impaired intestinal immunity and subsequent release of microbial products observed in other extra-intestinal pathologies. Castillo-dela Cruz et al. describe a unique protective role of intestinal IL-17RA in hepatitis. Disruption of intestinal IL-17RA signaling results in microbiome dysbiosis and translocation of bacterial products, specifically unmethylated CpG DNA, to the liver. This promotes IL-18 production and subsequent lymphocyte activation and cell death to exacerbate liver inflammation.
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Affiliation(s)
- Patricia Castillo-Dela Cruz
- Richard King Mellon Foundation Institute for Pediatric Research, Department of Pediatrics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA 15224, USA; Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Alanna G Wanek
- Departments of Medicine and Pediatrics, Center for Translational Research in Infection and Inflammation, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Pawan Kumar
- Richard King Mellon Foundation Institute for Pediatric Research, Department of Pediatrics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA 15224, USA
| | - Xiaojing An
- Department of Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Waleed Elsegeiny
- Richard King Mellon Foundation Institute for Pediatric Research, Department of Pediatrics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA 15224, USA
| | - William Horne
- Richard King Mellon Foundation Institute for Pediatric Research, Department of Pediatrics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA 15224, USA
| | - Adam Fitch
- Department of Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA; Center for Medicine and the Microbiome, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Ansen H P Burr
- Richard King Mellon Foundation Institute for Pediatric Research, Department of Pediatrics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA 15224, USA; Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Kathyayini P Gopalakrishna
- Richard King Mellon Foundation Institute for Pediatric Research, Department of Pediatrics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA 15224, USA; Department of Human Genetics, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA 15213, USA
| | - Kong Chen
- Department of Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Barbara A Methé
- Department of Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA; Center for Medicine and the Microbiome, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Scott W Canna
- Richard King Mellon Foundation Institute for Pediatric Research, Department of Pediatrics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA 15224, USA; Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Timothy W Hand
- Richard King Mellon Foundation Institute for Pediatric Research, Department of Pediatrics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA 15224, USA; Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Jay K Kolls
- Richard King Mellon Foundation Institute for Pediatric Research, Department of Pediatrics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA 15224, USA; Departments of Medicine and Pediatrics, Center for Translational Research in Infection and Inflammation, Tulane University School of Medicine, New Orleans, LA 70112, USA.
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18
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Cytokine genes multi-locus analysis reveals synergistic influence on genetic susceptibility in Indian SLE - A multifactor-dimensionality reduction approach. Cytokine 2020; 135:155240. [PMID: 32795905 DOI: 10.1016/j.cyto.2020.155240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 04/21/2020] [Accepted: 08/04/2020] [Indexed: 01/05/2023]
Abstract
Systemic lupus erythematosus (SLE) is a prototype autoimmune disease with unclear etiology. Several loci associated with genetic susceptibility for lupus have been described. However, it lacks reports on cytokine gene-gene interactions among SLE patients from Asian population. Epistasis interaction among single nucleotide polymorphisms (SNPs) of cytokine genes in Indian SLE patients was tested using multifactor-dimensionality reduction (MDR) analysis. A total of fourteen SNPs lacking linkage disequilibrium among different cytokines genes were genotyped in a cohort of 200 SLE patients and 201 healthy individuals as controls of Indian origin. A high degree of synergism among Lymphotoxin-α (LT-α), Interleukin-1β (IL-1β) and Interleukin-10 (IL-10) gene polymorphisms was detected in our SLE patients. Furthermore, by virtue of biological inter-relations among different cytokines, a high strength of interactions was observed among pro-inflammatory (IL-1β, IL-6) and anti-inflammatory (IL-10) cytokine gene SNPs. Also, among studied pro-inflammatory cytokines and chemokines, a strong synergistic effect among Tumor Necrosis Factor-α (TNF-α), LT-α and Monocyte Chemo-attractant Protein-1 (MCP-1) SNPs was occurred. A nature of strong interaction among the candidate cytokine genes may speculate a proactive role in causing genetic susceptibility to the disease in SLE patients with Indian origin.
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Rex DAB, Agarwal N, Prasad TSK, Kandasamy RK, Subbannayya Y, Pinto SM. A comprehensive pathway map of IL-18-mediated signalling. J Cell Commun Signal 2019; 14:257-266. [PMID: 31863285 DOI: 10.1007/s12079-019-00544-4] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Accepted: 12/06/2019] [Indexed: 02/07/2023] Open
Abstract
Interleukin-18 (IL-18) is a member of the IL-1 family of cytokines and was initially described as an IFN-γ-inducing factor derived from anti-CD3-stimulated T-helper (Th)1 cells. IL-18 plays a significant role in the activation of hematopoietic cell types mediating both Th1 and Th2 responses and is the primary inducer of interferon-γ in these cells. The biological activity of IL-18 is mediated through its binding to the IL-18 receptor complex and activation of nuclear factor-κB (NF-κB), culminating in the production and release of several cytokines, chemokines, and cellular adhesion molecules. In certain cell types, IL-18 also activates mitogen-activated protein kinases (MAPKs) and phosphoinositide 3-kinase/ AKT serine/threonine kinase (PI3K/AKT) signaling modules leading to the production and release of proinflammatory cytokines. IL-18-mediated signaling acts as one of the vital components of the immunomodulatory cytokine networks involved in host defense, inflammation, and tissue regeneration. Albeit its biomedical importance, a comprehensive resource of IL-18 mediated signaling pathway is currently lacking. In this study, we report on the development of an integrated pathway map of IL-18/IL-18R signaling. The pathway map was developed through literature mining from published literature based on manual curation guidelines adapted from NetPath and includes information on 16 protein-protein interaction events, 38 enzyme-catalysis events, 12 protein translocation events, 26 activations/inhibition events, transcriptional regulators, 230 gene regulation events and 84 induced protein expression events. The IL-18 signaling pathway can be freely accessed through the WikiPathways database (https://www.wikipathways.org/index.php/Pathway:WP4754).
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Affiliation(s)
- D A B Rex
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, India
| | - Nupur Agarwal
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, India
| | - T S Keshava Prasad
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, India
| | - Richard K Kandasamy
- Centre of Molecular Inflammation Research (CEMIR), and Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology, N-7491, Trondheim, Norway
| | - Yashwanth Subbannayya
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, India. .,Centre of Molecular Inflammation Research (CEMIR), and Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology, N-7491, Trondheim, Norway.
| | - Sneha M Pinto
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, India. .,Centre of Molecular Inflammation Research (CEMIR), and Department of Clinical and Molecular Medicine (IKOM), Norwegian University of Science and Technology, N-7491, Trondheim, Norway.
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21
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Jain S, Van Scoyk A, Morgan EA, Matthews A, Stevenson K, Newton G, Powers F, Autio A, Louissaint A, Pontini G, Aster JC, Luscinskas FW, Weinstock DM. Targeted inhibition of CD47-SIRPα requires Fc-FcγR interactions to maximize activity in T-cell lymphomas. Blood 2019; 134:1430-1440. [PMID: 31383641 PMCID: PMC6839960 DOI: 10.1182/blood.2019001744] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 07/30/2019] [Indexed: 12/21/2022] Open
Abstract
Antibodies that bind CD47 on tumor cells and prevent interaction with SIRPα on phagocytes are active against multiple cancer types including T-cell lymphoma (TCL). Here we demonstrate that surface CD47 is heterogeneously expressed across primary TCLs, whereas major histocompatibility complex (MHC) class I, which can also suppress phagocytosis, is ubiquitous. Multiple monoclonal antibodies (mAbs) that block CD47-SIRPα interaction promoted phagocytosis of TCL cells, which was enhanced by cotreatment with antibodies targeting MHC class I. Expression levels of surface CD47 and genes that modulate CD47 pyroglutamation did not correlate with the extent of phagocytosis induced by CD47 blockade in TCL lines. In vivo treatment of multiple human TCL patient-derived xenografts or an immunocompetent murine TCL model with a short course of anti-CD47 mAb markedly reduced lymphoma burden and extended survival. Depletion of macrophages reduced efficacy in vivo, whereas depletion of neutrophils had no effect. F(ab')2-only fragments of anti-CD47 antibodies failed to induce phagocytosis by human macrophages, indicating a requirement for Fc-Fcγ receptor interactions. In contrast, F(ab')2-only fragments increased phagocytosis by murine macrophages independent of SLAMF7-Mac-1 interaction. Full-length anti-CD47 mAbs also induced phagocytosis by Fcγ receptor-deficient murine macrophages. An immunoglobulin G1 anti-CD47 mAb induced phagocytosis and natural killer cell-mediated cytotoxicity of TCL cells that was augmented by cotreatment with mogamulizumab, an anti-CCR4 mAb, or a mAb blocking MHC class I. These studies help explain the disparate activity of monotherapy with agents that block CD47 in murine models compared with patients. They also have direct translational implications for the deployment of anti-CD47 mAbs alone or in combination.
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MESH Headings
- Animals
- Antigens, Differentiation/immunology
- Antineoplastic Agents, Immunological/pharmacology
- Antineoplastic Agents, Immunological/therapeutic use
- CD47 Antigen/antagonists & inhibitors
- CD47 Antigen/immunology
- Cell Line, Tumor
- Humans
- Lymphoma, T-Cell/drug therapy
- Lymphoma, T-Cell/immunology
- Lymphoma, T-Cell/pathology
- Mice
- Receptors, Fc/immunology
- Receptors, IgG/immunology
- Receptors, Immunologic/immunology
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Affiliation(s)
- Salvia Jain
- Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA
- Harvard Medical School, Boston, MA
| | - Alexandria Van Scoyk
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA
- Department of Oncological Sciences, University of Utah, Salt Lake City, UT
| | - Elizabeth A Morgan
- Harvard Medical School, Boston, MA
- Department of Pathology, Brigham and Women's Hospital, Boston, MA
| | - Andrew Matthews
- Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA
| | - Kristen Stevenson
- Department of Computational Biology and Biostatistics, Dana-Farber Cancer Institute, Boston, MA
| | - Gail Newton
- Department of Pathology, Brigham and Women's Hospital, Boston, MA
| | - Foster Powers
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA
| | - Anu Autio
- Department of Pathology, Brigham and Women's Hospital, Boston, MA
| | - Abner Louissaint
- Harvard Medical School, Boston, MA
- Department of Pathology, Massachusetts General Hospital, Boston, MA
| | | | - Jon C Aster
- Harvard Medical School, Boston, MA
- Department of Pathology, Brigham and Women's Hospital, Boston, MA
| | - Francis W Luscinskas
- Harvard Medical School, Boston, MA
- Department of Pathology, Brigham and Women's Hospital, Boston, MA
| | - David M Weinstock
- Harvard Medical School, Boston, MA
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA
- Broad Institute of Harvard and MIT, Cambridge, MA
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22
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Deletion of interleukin-18 attenuates abdominal aortic aneurysm formation. Atherosclerosis 2019; 289:14-20. [PMID: 31445353 DOI: 10.1016/j.atherosclerosis.2019.08.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 07/04/2019] [Accepted: 08/16/2019] [Indexed: 12/19/2022]
Abstract
BACKGROUND AND AIMS Abdominal aortic aneurysm (AAA) is a common disease; however, its exact pathogenesis remains unknown, and no specific medical therapies are available. Interleukin (IL)-18 plays a crucial role in atherosclerotic plaque destabilization and is a strong predictor of cardiovascular death. Here, we investigated the role of IL-18 in AAA pathogenesis using an experimental mouse model. METHODS AND RESULTS After infusion of angiotensin II (Ang II) for 4 weeks and β-aminopropionitrile (BAPN) for 2 weeks, 58% of C57/6J wild-type (WT) mice developed AAA associated with enhanced expression of IL-18; however, disease incidence was significantly lower in IL-18-/- mice than in WT mice (p < 0.01), although no significant difference was found in systolic blood pressure between WT mice and IL-18-/- mice in this model. Additionally, IL-18 deletion significantly attenuated Ang II/BAPN-induced macrophage infiltration, macrophage polarization into inflammatory M1 phenotype, and matrix metalloproteinase (MMP) activation in abdominal aortas, which is associated with reduced expression of osteopontin (OPN). CONCLUSIONS These findings indicate that IL-18 plays an important role in the development of AAA by enhancing OPN expression, macrophage recruitment, and MMP activation. Moreover, IL-18 represents a previously unrecognized therapeutic target for the prevention of AAA formation.
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23
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Parkin Impairs Antiviral Immunity by Suppressing the Mitochondrial Reactive Oxygen Species-Nlrp3 Axis and Antiviral Inflammation. iScience 2019; 16:468-484. [PMID: 31229895 PMCID: PMC6593176 DOI: 10.1016/j.isci.2019.06.008] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 04/13/2019] [Accepted: 06/05/2019] [Indexed: 02/06/2023] Open
Abstract
Although mitochondria are known to be involved in host defense against viral infection, the physiological role of mitophagy, a crucial mechanism for maintaining mitochondrial homeostasis, in antiviral immunity remains poorly defined. Here, we show that Parkin, a central player in mitophagy, has a vital function in regulating host antiviral responses. Parkin-knockout mice exhibit improved viral clearance and survival after viral infection. However, Parkin deficiency does not affect antiviral signaling and interferon production. Instead, Parkin deficiency augments innate antiviral inflammation by enhancing mitochondrial ROS (mtROS)-mediated NLRP3 inflammasome activation and promoting viral clearance. Loss of NLRP3 can reverse the enhanced antiviral responses in Parkin knockout mice. Furthermore, we find that Parkin expression is downregulated in peripheral blood mononuclear cells of patients infected with virus. Collectively, our results suggest that Parkin plays an important role in antiviral immunity by controlling mtROS-NLRP3 axis-mediated inflammation. These findings provide physiological insight of the importance of mitophagy in regulating host antiviral response. Loss of Parkin enhances viral clearance but does not affect type I IFN production Parkin deletion promotes antiviral inflammation in vivo Parkin deficiency enhances antiviral inflammation via the mtROS-NLRP3 axis The expression of Parkin is downregulated following viral infection
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24
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SGK1-dependent stimulation of vascular smooth muscle cell osteo-/chondrogenic transdifferentiation by interleukin-18. Pflugers Arch 2019; 471:889-899. [PMID: 30706178 PMCID: PMC6533237 DOI: 10.1007/s00424-019-02256-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 01/04/2019] [Accepted: 01/13/2019] [Indexed: 01/18/2023]
Abstract
The serum- and glucocorticoid-inducible kinase 1 (SGK1) is a key regulator of osteo-/chondrogenic transdifferentiation and subsequent calcification of vascular smooth muscle cells (VSMCs). The phenotypical transdifferentiation of VSMCs is associated with increased interleukin-18 (IL-18) levels and generalized inflammation. Therefore, the present study investigated the possible involvement of SGK1 in IL-18-induced vascular calcification. Experiments were performed in primary human aortic smooth muscle cells (HAoSMCs) treated with recombinant human IL-18 protein in control or high phosphate conditions and following SGK1 knockdown by siRNA or pharmacological inhibition of SGK1, PI3K, and PDK1. As a result, IL-18 treatment increased SGK1 mRNA and protein expression in HAoSMCs. IL-18 upregulated SGK1 mRNA expression in a dose-dependent manner. This effect was paralleled by upregulation of the mRNA expression of MSX2 and CBFA1, osteogenic transcription factors, and of tissue-nonspecific alkaline phosphatase (ALPL), an osteogenic enzyme, as markers of increased osteo-/chondrogenic transdifferentiation. Phosphate treatment increased SGK1 and osteogenic markers mRNA expression as well as ALPL activity and induced calcification of HAoSMCs, all effects significantly augmented by additional treatment with IL-18. Conversely, silencing of SGK1 or cotreatment with the SGK1 inhibitor EMD638683 blunted the effects of IL-18 on osteo-/chondrogenic transdifferentiation and calcification of HAoSMCs. The procalcific effects of IL-18 were similarly suppressed in the presence of PI3K or PDK1 inhibitors. In conclusion, SGK1 expression is upregulated by IL-18 in VSMCs and SGK1 participates in the intracellular signaling of IL-18-induced osteo-/chondrogenic transdifferentiation of VSMCs. Thus, SGK1 may serve as therapeutic target to limit the progression of medial vascular calcification during vascular inflammation.
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25
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Ravimohan S, Nfanyana K, Tamuhla N, Tiemessen CT, Weissman D, Bisson GP. Common Variation in NLRP3 Is Associated With Early Death and Elevated Inflammasome Biomarkers Among Advanced HIV/TB Co-infected Patients in Botswana. Open Forum Infect Dis 2018; 5:ofy075. [PMID: 29732382 PMCID: PMC5928406 DOI: 10.1093/ofid/ofy075] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 04/06/2018] [Indexed: 12/20/2022] Open
Abstract
Background Elevated inflammation is associated with early mortality among HIV/tuberculosis (TB) patients starting antiretroviral therapy (ART); however, the sources of immune activation are unclear. We hypothesized that common variation in innate immune genes contributes to excessive inflammation linked to death. As single nucleotide polymorphisms (SNPs) in inflammasome pathway genes can increase risk for inflammatory diseases, we investigated their association with early mortality among a previously described cohort of HIV/TB patients initiating ART in Botswana. Methods We genotyped 8 SNPs within 5 inflammasome pathway genes and determined their association with death. For adjusted analyses, we used a logistic regression model. For SNPs associated with mortality, we explored their relationship with levels of systemic inflammatory markers using a linear regression model. Results Ninety-four patients in the parent study had samples for genetic analysis. Of these, 82 (87%) were survivors and 12 (13%) died within 6 months of starting ART. In a logistic regression model, NLRP3 rs10754558 was independently associated with a 4.1-fold increased odds of death (95% confidence interval, 1.04–16.5). In adjusted linear regression models, the NLRP3 rs10754558-G allele was linked to elevated IL-18 at baseline (Beta, 0.23; SE, 0.10; P = .033) and week 4 post-ART (Beta, 0.24; SE, 0.11; P = .026). This allele was associated with increased MCP-1 at baseline (Beta, 0.24; SE, 0.10; P = .02) and IL-10 (Beta, 0.27; SE, 0.11; P = .013) at week 4 post-ART. Conclusion The NLRP3 rs10754558-G SNP is associated with an increased risk for early mortality in HIV/TB patients initiating ART. These patients may benefit from therapies that decrease inflammasome-mediated inflammation.
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Affiliation(s)
- Shruthi Ravimohan
- Division of Infectious Diseases, Department of Medicine, Center for Clinical Epidemiology and Biostatistics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania.,Botswana-UPenn Partnership, Gaborone, Botswana
| | | | - Neo Tamuhla
- Botswana-UPenn Partnership, Gaborone, Botswana
| | - Caroline T Tiemessen
- Centre for HIV-1 and STIs, National Institute for Communicable Diseases, and Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Drew Weissman
- Division of Infectious Diseases, Department of Medicine, Center for Clinical Epidemiology and Biostatistics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania.,Botswana-UPenn Partnership, Gaborone, Botswana
| | - Gregory P Bisson
- Division of Infectious Diseases, Department of Medicine, Center for Clinical Epidemiology and Biostatistics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania.,Botswana-UPenn Partnership, Gaborone, Botswana.,Department of Biostatistics, Epidemiology, and Informatics, Center for Clinical Epidemiology and Biostatistics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
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26
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El-Darawish Y, Li W, Yamanishi K, Pencheva M, Oka N, Yamanishi H, Matsuyama T, Tanaka Y, Minato N, Okamura H. Frontline Science: IL-18 primes murine NK cells for proliferation by promoting protein synthesis, survival, and autophagy. J Leukoc Biol 2018; 104:253-264. [PMID: 29603367 DOI: 10.1002/jlb.1hi1017-396rr] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 01/29/2018] [Accepted: 02/02/2018] [Indexed: 12/12/2022] Open
Abstract
Combined stimulation by IL-2 and IL-18 effectively promotes proliferation of NK cells, whereas singular stimulation does not. In this study, synergistic effects of these cytokines on NK cells proliferation was analyzed, focusing on the roles of IL-18. In splenic resting NK cells from IL-18KO mice, IL-18 rapidly activated NF-κB independently of IL-2, and activated or up-regulated various molecules downstream of PI3K/AKT and mTOR, including S6, Bcl-XL, ATG5, and LC3II, accompanying increases in cell growth and survival. Thus, IL-18 alone was revealed to augment various cellular processes (gene transcription, protein synthesis, survival) in the absence or presence of IL-2. Notably, combined IL-18 and IL-2 promoted autophagosome formation. In addition, priming NK cells with IL-18 augmented IL-2R, especially CD25, and enabled cells to respond to IL-2, resulting in activation of STAT3 and STAT5, followed by increase of cyclin B1 leading to proliferation. However, IL-2 alone failed to activate STAT3 or STAT5 in resting IL18KO NK cells. These results clarify the distinct roles of IL-2 and IL-18 in NK cell proliferation, and the intrinsic roles of IL-18 in various cellular processes, suggesting a range of functions of IL-18 expressed in an array of nonhematopoietic cells.
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Affiliation(s)
- Yosif El-Darawish
- Laboratory of Tumor Immunology and Cell Therapy, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
| | - Wen Li
- Laboratory of Tumor Immunology and Cell Therapy, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
| | - Kyosuke Yamanishi
- Department of Neuropsychiatry, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan.,Hirakata General Hospital for Developmental Disorders, Hirakata, Osaka, Japan
| | - Magdalena Pencheva
- Laboratory of Tumor Immunology and Cell Therapy, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan.,Department of Medical Biology, Medical Faculty, Medical University of Sofia, Sofia, Bulgaria
| | - Naoto Oka
- Department of Otorhinolaryngology-Head and Neck Surgery, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
| | - Hiromichi Yamanishi
- Hirakata General Hospital for Developmental Disorders, Hirakata, Osaka, Japan
| | - Tomohiro Matsuyama
- Institute for Advanced Medical Sciences, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
| | - Yoshimasa Tanaka
- Center for Bioinformatics and Molecular Medicine, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Nagahiro Minato
- Department of Immunology and Cell Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Haruki Okamura
- Laboratory of Tumor Immunology and Cell Therapy, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
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27
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Lindegaard B, Hvid T, Wolsk Mygind H, Hartvig-Mortensen O, Grøndal T, Abildgaard J, Gerstoft J, Pedersen BK, Baranowski M. Low expression of IL-18 and IL-18 receptor in human skeletal muscle is associated with systemic and intramuscular lipid metabolism-Role of HIV lipodystrophy. PLoS One 2018; 13:e0186755. [PMID: 29342149 PMCID: PMC5771554 DOI: 10.1371/journal.pone.0186755] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Accepted: 10/07/2017] [Indexed: 01/22/2023] Open
Abstract
Introduction Interleukin (IL)-18 is involved in regulation of lipid and glucose metabolism. Mice lacking whole-body IL-18 signalling are prone to develop weight gain and insulin resistance, a phenotype which is associated with impaired fat oxidation and ectopic skeletal muscle lipid deposition. IL-18 mRNA is expressed in human skeletal muscle but a role for IL-18 in muscle has not been identified. Patients with HIV-infection and lipodystrophy (LD) are characterized by lipid and glucose disturbances and increased levels of circulating IL-18. We hypothesized that skeletal muscle IL-18 and IL-18 receptor (R) expression would be altered in patients with HIV-lipodystrophy. Design and methods Twenty-three HIV-infected patients with LD and 15 age-matched healthy controls were included in a cross-sectional study. Biopsies from the vastus lateralis muscle were obtained and IL-18 and IL-18R mRNA expression were measured by real-time PCR and sphingolipids (ceramides, sphingosine, sphingosine-1-Phosphate, sphinganine) were measured by HPLC. Insulin resistance was assessed by HOMA and the insulin response during an OGTT. Results Patients with HIV-LD had a 60% and 54% lower level of muscular IL-18 and IL-18R mRNA expression, respectively, compared to age-matched healthy controls. Patients with HIV-LD had a trend towards increased levels of ceramide (18.3±4.7 versus 14.8±3.0,p = 0.06) and sphingosine (0.41±0.13 versus 0.32±0.07, and lower level of sphinganine (p = 0.06). Low levels of muscle IL-18 mRNA correlated to high levels of ceramides (r = -0.31, p = 0.038) and sphingosine-1P (r = -0.29, p = 0.046) in skeletal muscle, whereas such a correlation was not found in healthy controls. Low expression of IL-18 mRNA in skeletal muscle correlated to elevated concentration of circulating triglycerides (Rp = -0.73, p<0.0001). Neither muscle expression of IL-18 mRNA or ceramide correlated to parameters of insulin resistance. Conclusion IL-18 (mRNA) in skeletal muscle appears to be involved in the regulation of intramuscular lipid metabolism and hypertriglyceridemia.
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Affiliation(s)
- Birgitte Lindegaard
- The Centre of Inflammation and Metabolism and The Centre of Physical Activity Research, Rigshospital, Copenhagen, Denmark
- The Department of Infectious Diseases, Rigshospitalet, Copenhagen, Denmark
- The Department of Lung- and Infectious Diseases, Nordsjællands Hospital, Hillerød, Denmark
- * E-mail:
| | - Thine Hvid
- The Centre of Inflammation and Metabolism and The Centre of Physical Activity Research, Rigshospital, Copenhagen, Denmark
| | - Helene Wolsk Mygind
- The Centre of Inflammation and Metabolism and The Centre of Physical Activity Research, Rigshospital, Copenhagen, Denmark
| | | | - Thomas Grøndal
- The Centre of Inflammation and Metabolism and The Centre of Physical Activity Research, Rigshospital, Copenhagen, Denmark
| | - Julie Abildgaard
- The Centre of Inflammation and Metabolism and The Centre of Physical Activity Research, Rigshospital, Copenhagen, Denmark
| | - Jan Gerstoft
- The Department of Infectious Diseases, Rigshospitalet, Copenhagen, Denmark
| | - Bente Klarlund Pedersen
- The Centre of Inflammation and Metabolism and The Centre of Physical Activity Research, Rigshospital, Copenhagen, Denmark
| | - Marcin Baranowski
- Department of Physiology, Medical University of Bialystok, Bialystok, Poland
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28
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de Almeida RMC, Clendenon SG, Richards WG, Boedigheimer M, Damore M, Rossetti S, Harris PC, Herbert BS, Xu WM, Wandinger-Ness A, Ward HH, Glazier JA, Bacallao RL. Transcriptome analysis reveals manifold mechanisms of cyst development in ADPKD. Hum Genomics 2016; 10:37. [PMID: 27871310 PMCID: PMC5117508 DOI: 10.1186/s40246-016-0095-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Accepted: 11/04/2016] [Indexed: 12/18/2022] Open
Abstract
Background Autosomal dominant polycystic kidney disease (ADPKD) causes progressive loss of renal function in adults as a consequence of the accumulation of cysts. ADPKD is the most common genetic cause of end-stage renal disease. Mutations in polycystin-1 occur in 87% of cases of ADPKD and mutations in polycystin-2 are found in 12% of ADPKD patients. The complexity of ADPKD has hampered efforts to identify the mechanisms underlying its pathogenesis. No current FDA (Federal Drug Administration)-approved therapies ameliorate ADPKD progression. Results We used the de Almeida laboratory’s sensitive new transcriptogram method for whole-genome gene expression data analysis to analyze microarray data from cell lines developed from cell isolates of normal kidney and of both non-cystic nephrons and cysts from the kidney of a patient with ADPKD. We compared results obtained using standard Ingenuity Volcano plot analysis, Gene Set Enrichment Analysis (GSEA) and transcriptogram analysis. Transcriptogram analysis confirmed the findings of Ingenuity, GSEA, and published analysis of ADPKD kidney data and also identified multiple new expression changes in KEGG (Kyoto Encyclopedia of Genes and Genomes) pathways related to cell growth, cell death, genetic information processing, nucleotide metabolism, signal transduction, immune response, response to stimulus, cellular processes, ion homeostasis and transport and cofactors, vitamins, amino acids, energy, carbohydrates, drugs, lipids, and glycans. Transcriptogram analysis also provides significance metrics which allow us to prioritize further study of these pathways. Conclusions Transcriptogram analysis identifies novel pathways altered in ADPKD, providing new avenues to identify both ADPKD’s mechanisms of pathogenesis and pharmaceutical targets to ameliorate the progression of the disease. Electronic supplementary material The online version of this article (doi:10.1186/s40246-016-0095-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Rita M C de Almeida
- Biocomplexity Institute and Department of Physics, Indiana University, Bloomington, IN, 47405, USA.,Instituto de Física and Instituto Nacional de Ciência e Tecnologia, Universidade Federal do Rio Grande do Sul, 91501-970, Porto Alegre, RS, Brazil
| | - Sherry G Clendenon
- Biocomplexity Institute and Department of Intelligent Systems Engineering, Indiana University, Bloomington, IN, 47405, USA
| | | | | | - Michael Damore
- AMGEN Inc., One Amgen Center Drive, Thousand Oaks, CA, 91320-1799, USA
| | - Sandro Rossetti
- Division of Nephrology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Peter C Harris
- Division of Nephrology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Britney-Shea Herbert
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Wei Min Xu
- Division of Nephrology, Department of Medicine, Richard Roudebush VAMC and Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Angela Wandinger-Ness
- Department of Pathology MSC08-4640 and Cancer Research and Treatment Center, University of New Mexico Health Sciences Center, Albuquerque, NM, 87131, USA
| | - Heather H Ward
- Division of Nephrology, Department of Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM, 87131, USA
| | - James A Glazier
- Biocomplexity Institute and Department of Intelligent Systems Engineering, Indiana University, Bloomington, IN, 47405, USA
| | - Robert L Bacallao
- Division of Nephrology, Department of Medicine, Richard Roudebush VAMC and Indiana University School of Medicine, Indianapolis, IN, 46202, USA.
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29
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IL-18BP is decreased in osteoporotic women: Prevents Inflammasome mediated IL-18 activation and reduces Th17 differentiation. Sci Rep 2016; 6:33680. [PMID: 27649785 PMCID: PMC5030484 DOI: 10.1038/srep33680] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 08/31/2016] [Indexed: 12/17/2022] Open
Abstract
IL-18BP is a natural antagonist of pro-inflammatory IL-18 cytokine linked to autoimmune disorders like rheumatoid arthritis. However, its role in post menopausal osteoporosis is still unknown. In this study, we investigated the role of IL-18BP on murine osteoblasts, its effect on osteoblasts-CD4+ T cells and osteoblasts-CD11b+ macrophage co-culture. mIL-18BPd enhances osteoblast differentiation and inhibits the activation of NLRP3 inflammasome and caspase-1 which process IL-18 to its active form. Using estrogen deficient mice, we also determined the effect of mIL-18BP on various immune and skeletal parameters. Ovariectomized mice treated with mIL-18BPd exhibited decrease in Th17/Treg ratio and pro-inflammatory cytokines. mIL-18BPd treatment restored trabecular microarchitecture, preserved cortical bone parameters likely attributed to an increased number of bone lining cells and reduced osteoclastogenesis. Importantly, these results were corroborated in female osteoporotic subjects where decreased serum IL-18BP levels and enhanced serum IL-18 levels were observed. Our study forms a strong basis for using humanized IL-18BP towards the treatment of postmenopausal osteoporosis.
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30
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Effects of insulin on the skin: possible healing benefits for diabetic foot ulcers. Arch Dermatol Res 2016; 308:677-694. [PMID: 27655635 DOI: 10.1007/s00403-016-1686-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 08/04/2016] [Accepted: 09/12/2016] [Indexed: 12/16/2022]
Abstract
Diabetic foot ulcers affect 15-20 % of all diabetic patients and remain an important challenge since the available therapies have limited efficacy and some of the novel therapeutic approaches, which include growth factors and stem cells, are highly expensive and their safety remains to be evaluated. Despite its low cost and safety, the interest for topical insulin as a healing agent has increased only in the last 20 years. The molecular mechanisms of insulin signaling and its metabolic effects have been well studied in its classical target tissues. However, little is known about the specific effects of insulin in healthy or even diabetic skin. In addition, the mechanisms involved in the effects of insulin on wound healing have been virtually unknown until about 10 years ago. This paper will review the most recent advances in the cellular and molecular mechanisms that underlie the beneficial effects of insulin on skin wound healing in diabetes. Emerging evidence that links dysfunction of key cellular organelles, namely the endoplasmic reticulum and the mitochondria, to changes in the autophagy response, as well as the impaired wound healing in diabetic patients will also be discussed along with the putative mechanisms whereby insulin could regulate/modulate these alterations.
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31
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Eguíluz-Gracia I, Schultz HHL, Sikkeland LIB, Danilova E, Holm AM, Pronk CJH, Agace WW, Iversen M, Andersen C, Jahnsen FL, Baekkevold ES. Long-term persistence of human donor alveolar macrophages in lung transplant recipients. Thorax 2016; 71:1006-1011. [DOI: 10.1136/thoraxjnl-2016-208292] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 05/26/2016] [Indexed: 12/23/2022]
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32
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Yong KK, Chang JH, Chien MH, Tsao SM, Yu MC, Bai KJ, Tsao TCY, Yang SF. Plasma Monocyte Chemoattractant Protein-1 Level as a Predictor of the Severity of Community-Acquired Pneumonia. Int J Mol Sci 2016; 17:ijms17020179. [PMID: 26840299 PMCID: PMC4783913 DOI: 10.3390/ijms17020179] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Revised: 01/10/2016] [Accepted: 01/26/2016] [Indexed: 01/10/2023] Open
Abstract
Monocyte chemoattractant protein (MCP)-1 increases in the serum of immunocompetent patients with community-acquired pneumonia (CAP). However, the correlation between the circulating level of MCP-1 and severity of CAP remains unclear. This study investigated differential changes in the plasma MCP-1 levels of patients with CAP before and after an antibiotic treatment and further analyzes the association between the CAP severity and MCP-1 levels. We measured the plasma MCP-1 levels of 137 patients with CAP and 74 healthy controls by using a commercial enzyme-linked immunosorbent assay. Upon initial hospitalization, Acute Physiology and Chronic Health Evaluation II (APACHE II); confusion, urea level, respiratory rate, blood pressure, and age of >64 years (CURB-65); and pneumonia severity index (PSI) scores were determined for assessing the CAP severity in these patients. The antibiotic treatment reduced the number of white blood cells (WBCs) and neutrophils as well as the level of C-reactive protein (CRP) and MCP-1. The plasma MCP-1 level, but not the CRP level or WBC count, correlated with the CAP severity according to the PSI (r = 0.509, p < 0.001), CURB-65 (r = 0.468, p < 0.001), and APACHE II (r = 0.360, p < 0.001) scores. We concluded that MCP-1 levels act in the development of CAP and are involved in the severity of CAP.
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Affiliation(s)
- Kok-Khun Yong
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan.
- Division of Pulmonary Medicine, Puli Christian Hospital, Puli Township, Nantou 54546, Taiwan.
| | - Jer-Hwa Chang
- Division of Pulmonary Medicine, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei 116, Taiwan.
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei 110, Taiwan.
| | - Ming-Hsien Chien
- Graduate Institute of Clinical Medicine, Taipei Medical University, Taipei 110, Taiwan.
- Department of Medical Education and Research, Wan Fang Hospital, Taipei Medical University, Taipei 116, Taiwan.
| | - Shih-Ming Tsao
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung 402, Taiwan.
- Division of Chest, Department of Internal Medicine, Chung Shan Medical University Hospital, Taichung 402, Taiwan.
| | - Ming-Chih Yu
- Division of Pulmonary Medicine, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei 116, Taiwan.
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei 110, Taiwan.
| | - Kuan-Jen Bai
- Division of Pulmonary Medicine, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei 116, Taiwan.
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei 110, Taiwan.
| | - Thomas Chang-Yao Tsao
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung 402, Taiwan.
- Division of Chest, Department of Internal Medicine, Chung Shan Medical University Hospital, Taichung 402, Taiwan.
| | - Shun-Fa Yang
- Institute of Medicine, Chung Shan Medical University, Taichung 402, Taiwan.
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung 402, Taiwan.
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Elshabrawy HA, Chen Z, Volin MV, Ravella S, Virupannavar S, Shahrara S. The pathogenic role of angiogenesis in rheumatoid arthritis. Angiogenesis 2015; 18:433-48. [PMID: 26198292 PMCID: PMC4879881 DOI: 10.1007/s10456-015-9477-2] [Citation(s) in RCA: 342] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Accepted: 07/14/2015] [Indexed: 12/31/2022]
Abstract
Angiogenesis is the formation of new capillaries from pre-existing vasculature, which plays a critical role in the pathogenesis of several inflammatory autoimmune diseases such as rheumatoid arthritis (RA), spondyloarthropathies, psoriasis, systemic lupus erythematosus, systemic sclerosis, and atherosclerosis. In RA, excessive migration of circulating leukocytes into the inflamed joint necessitates formation of new blood vessels to provide nutrients and oxygen to the hypertrophic joint. The dominance of the pro-angiogenic factors over the endogenous angiostatic mediators triggers angiogenesis. In this review article, we highlight the underlying mechanisms by which cells present in the RA synovial tissue are modulated to secrete pro-angiogenic factors. We focus on the significance of pro-angiogenic factors such as growth factors, hypoxia-inducible factors, cytokines, chemokines, matrix metalloproteinases, and adhesion molecules on RA pathogenesis. As pro-angiogenic factors are primarily produced from RA synovial tissue macrophages and fibroblasts, we emphasize the key role of RA synovial tissue lining layer in maintaining synovitis through neovascularization. Lastly, we summarize the specific approaches utilized to target angiogenesis. We conclude that the formation of new blood vessels plays an indispensable role in RA progression. However, since the function of several pro-angiogenic mediators is cross regulated, discovering novel approaches to target multiple cascades or selecting an upstream cascade that impairs the activity of a number of pro-angiogenic factors may provide a promising strategy for RA therapy.
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Affiliation(s)
- Hatem A Elshabrawy
- Division of Rheumatology, Department of Medicine, University of Illinois at Chicago, MSB 835 S Wolcott Ave., E807-E809, Chicago, IL, 60612, USA
| | - Zhenlong Chen
- Division of Rheumatology, Department of Medicine, University of Illinois at Chicago, MSB 835 S Wolcott Ave., E807-E809, Chicago, IL, 60612, USA
| | - Michael V Volin
- Department of Microbiology and Immunology, Chicago College of Osteopathic Medicine, Midwestern University, Downers Grove, IL, 60515, USA
| | - Shalini Ravella
- Division of Rheumatology, Department of Medicine, University of Illinois at Chicago, MSB 835 S Wolcott Ave., E807-E809, Chicago, IL, 60612, USA
| | - Shanti Virupannavar
- Division of Rheumatology, Department of Medicine, University of Illinois at Chicago, MSB 835 S Wolcott Ave., E807-E809, Chicago, IL, 60612, USA
| | - Shiva Shahrara
- Division of Rheumatology, Department of Medicine, University of Illinois at Chicago, MSB 835 S Wolcott Ave., E807-E809, Chicago, IL, 60612, USA.
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Ko CY, Wang WL, Li CF, Jeng YM, Chu YY, Wang HY, Tseng JT, Wang JM. IL-18-induced interaction between IMP3 and HuR contributes to COX-2 mRNA stabilization in acute myeloid leukemia. J Leukoc Biol 2015; 99:131-41. [PMID: 26342105 DOI: 10.1189/jlb.2a0414-228rr] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Accepted: 08/24/2015] [Indexed: 11/24/2022] Open
Abstract
Acute myeloid leukemia is the majority type presented in leukemia patients. Forcing malignant cells to undergo differentiation is 1 strategy for acute myeloid leukemia therapy. However, the failure of acute myeloid leukemia patients to achieve remission as a result of drug resistance remains a challenge. In this study, we found that the abundances of the proinflammatory cytokine IL-18 and its receptor (IL-18R) correlated with the occurrence of drug resistance in AML patients during standard treatment. Cyclooxygenase 2 (COX-2) has been suggested to have an antiapoptotic role in chemoresistant cancer cells. IL-18 treatment resulted in an increase in COX-2 expression through the post-transcriptional regulation of COX-2 mRNA in differentiated U937 cells and showed antiapoptotic activity in U937 and THP-1 cells. Two RNA-binding proteins, human antigen R and insulin-like growth factor mRNA-binding protein 3, mediated the stabilization of COX-2 mRNA. IL-18 induced the shuttling of human antigen R and insulin-like growth factor mRNA-binding protein 3 from the nucleus to the cytoplasm and facilitated their interaction; subsequently, this complex bound to the 3' untranslated region of COX-2 mRNA and affected its stability. We demonstrated further that JNK and/or ERK1/2 regulated human antigen R nucleocytoplasmic shuttling, mediating IL-18 stabilization of cyclooxygenase 2 mRNA.
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Affiliation(s)
- Chiung-Yuan Ko
- *Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, and Center for Neurotrauma and Neuroregeneration and Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan; Center for Molecular Medicine and Graduate Institute of Cancer Biology, China Medical University, Taichung, Taiwan; Department of Pathology, Chi-Mei Medical Center, Tainan, Taiwan; Institute of Clinical Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan; Department of Biotechnology, Southern Taiwan University, Tainan, Taiwan; Graduate Institute of Pathology, National Taiwan University, Taipei, Taiwan; and **Institute of Bioinformatics and Biosignal Transduction and Infectious Disease and Signaling Research Center and Center of Molecular Inflammation, National Cheng Kung University, Tainan, Taiwan
| | - Wen-Ling Wang
- *Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, and Center for Neurotrauma and Neuroregeneration and Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan; Center for Molecular Medicine and Graduate Institute of Cancer Biology, China Medical University, Taichung, Taiwan; Department of Pathology, Chi-Mei Medical Center, Tainan, Taiwan; Institute of Clinical Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan; Department of Biotechnology, Southern Taiwan University, Tainan, Taiwan; Graduate Institute of Pathology, National Taiwan University, Taipei, Taiwan; and **Institute of Bioinformatics and Biosignal Transduction and Infectious Disease and Signaling Research Center and Center of Molecular Inflammation, National Cheng Kung University, Tainan, Taiwan
| | - Chien-Feng Li
- *Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, and Center for Neurotrauma and Neuroregeneration and Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan; Center for Molecular Medicine and Graduate Institute of Cancer Biology, China Medical University, Taichung, Taiwan; Department of Pathology, Chi-Mei Medical Center, Tainan, Taiwan; Institute of Clinical Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan; Department of Biotechnology, Southern Taiwan University, Tainan, Taiwan; Graduate Institute of Pathology, National Taiwan University, Taipei, Taiwan; and **Institute of Bioinformatics and Biosignal Transduction and Infectious Disease and Signaling Research Center and Center of Molecular Inflammation, National Cheng Kung University, Tainan, Taiwan
| | - Yung-Ming Jeng
- *Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, and Center for Neurotrauma and Neuroregeneration and Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan; Center for Molecular Medicine and Graduate Institute of Cancer Biology, China Medical University, Taichung, Taiwan; Department of Pathology, Chi-Mei Medical Center, Tainan, Taiwan; Institute of Clinical Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan; Department of Biotechnology, Southern Taiwan University, Tainan, Taiwan; Graduate Institute of Pathology, National Taiwan University, Taipei, Taiwan; and **Institute of Bioinformatics and Biosignal Transduction and Infectious Disease and Signaling Research Center and Center of Molecular Inflammation, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Yi Chu
- *Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, and Center for Neurotrauma and Neuroregeneration and Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan; Center for Molecular Medicine and Graduate Institute of Cancer Biology, China Medical University, Taichung, Taiwan; Department of Pathology, Chi-Mei Medical Center, Tainan, Taiwan; Institute of Clinical Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan; Department of Biotechnology, Southern Taiwan University, Tainan, Taiwan; Graduate Institute of Pathology, National Taiwan University, Taipei, Taiwan; and **Institute of Bioinformatics and Biosignal Transduction and Infectious Disease and Signaling Research Center and Center of Molecular Inflammation, National Cheng Kung University, Tainan, Taiwan
| | - Han-Ying Wang
- *Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, and Center for Neurotrauma and Neuroregeneration and Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan; Center for Molecular Medicine and Graduate Institute of Cancer Biology, China Medical University, Taichung, Taiwan; Department of Pathology, Chi-Mei Medical Center, Tainan, Taiwan; Institute of Clinical Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan; Department of Biotechnology, Southern Taiwan University, Tainan, Taiwan; Graduate Institute of Pathology, National Taiwan University, Taipei, Taiwan; and **Institute of Bioinformatics and Biosignal Transduction and Infectious Disease and Signaling Research Center and Center of Molecular Inflammation, National Cheng Kung University, Tainan, Taiwan
| | - Joseph T Tseng
- *Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, and Center for Neurotrauma and Neuroregeneration and Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan; Center for Molecular Medicine and Graduate Institute of Cancer Biology, China Medical University, Taichung, Taiwan; Department of Pathology, Chi-Mei Medical Center, Tainan, Taiwan; Institute of Clinical Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan; Department of Biotechnology, Southern Taiwan University, Tainan, Taiwan; Graduate Institute of Pathology, National Taiwan University, Taipei, Taiwan; and **Institute of Bioinformatics and Biosignal Transduction and Infectious Disease and Signaling Research Center and Center of Molecular Inflammation, National Cheng Kung University, Tainan, Taiwan
| | - Ju-Ming Wang
- *Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, and Center for Neurotrauma and Neuroregeneration and Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan; Center for Molecular Medicine and Graduate Institute of Cancer Biology, China Medical University, Taichung, Taiwan; Department of Pathology, Chi-Mei Medical Center, Tainan, Taiwan; Institute of Clinical Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan; Department of Biotechnology, Southern Taiwan University, Tainan, Taiwan; Graduate Institute of Pathology, National Taiwan University, Taipei, Taiwan; and **Institute of Bioinformatics and Biosignal Transduction and Infectious Disease and Signaling Research Center and Center of Molecular Inflammation, National Cheng Kung University, Tainan, Taiwan
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Interleukin-18 expression increases in response to neurovascular damage following soman-induced status epilepticus in rats. JOURNAL OF INFLAMMATION-LONDON 2015. [PMID: 26203299 PMCID: PMC4510912 DOI: 10.1186/s12950-015-0089-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Background Status epilepticus (SE) can cause neuronal cell death and impaired behavioral function. Acute exposure to potent acetylcholinesterase inhibitors such as soman (GD) can cause prolonged SE activity, micro-hemorrhage and cell death in the hippocampus, thalamus and piriform cortex. Neuroinflammation is a prominent feature of brain injury with upregulation of multiple pro-inflammatory cytokines including those of the IL-1 family. The highly pleiotropic pro-inflammatory cytokine interleukin-18 (IL-18) belongs to the IL-1 family of cytokines and can propagate neuroinflammation by promoting immune cell infiltration, leukocyte and lymphocyte activation, and angiogenesis and helps facilitate the transition from the innate to the adaptive immune response. The purpose of this study is to characterize the regional and temporal expression of IL −18 and related factors in the brain following SE in a rat GD seizure model followed by localization of IL-18 to specific cell types. Methods The protein levels of IL-18, vascular endothelial growth factor and interferon gamma was quantified in the lysates of injured brain regions up to 72 h following GD-induced SE onset using bead multiplex immunoassays. IL-18 was localized to various cell types using immunohistochemistry and transmission electron microscopy. In addition, macrophage appearance scoring and T-cell quantification was determined using immunohistochemistry. Micro-hemorrhages were identified using hematoxylin and eosin staining of brain sections. Results Significant increases in IL-18 occurred in the piriform cortex, hippocampus and thalamus following SE. IL-18 was primarily expressed by endothelial cells and astrocytes associated with the damaged neurovascular unit. The increase in IL-18 was not related to macrophage accumulation, neutrophil infiltration or T-cell appearance in the injured tissue. Conclusions These data show that IL-18 is significantly upregulated following GD-induced SE and localized primarily to endothelial cells in damaged brain vasculature. IL-18 upregulation occurred following leukocyte/lymphocyte infiltration and in the absence of other IL-18-related cytokines, suggesting another function, potentially for angiogenesis related to GD-induced micro-hemorrhage formation. Further studies at more chronic time points may help to elucidate this function.
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Sousa LMA, Carneiro MBH, Dos Santos LM, Natale CC, Resende ME, Mosser DM, Vieira LQ. IL-18 contributes to susceptibility to Leishmania amazonensis infection by macrophage-independent mechanisms. Cytokine 2015; 74:327-30. [PMID: 26009021 DOI: 10.1016/j.cyto.2015.01.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Revised: 10/08/2014] [Accepted: 01/23/2015] [Indexed: 10/23/2022]
Abstract
We evaluated the role of IL-18 during Leishmania amazonensis infection in C57BL/6 mice, using IL-18KO mice. We showed that IL-18 is involved in susceptibility to L. amazonensis, since IL-18KO mice presented reduced lesions and parasite loads. Because macrophages are the host cells of the parasite, we investigated if macrophages were involved in IL-18-mediated susceptibility to L. amazonensis. We showed that macrophages obtained from WT or IL-18KO responded similarly to L. amazonensis infection. Moreover, we showed that C57BL/6 macrophages do not respond to IL-18, since they do not express IL-18R. Therefore, macrophages are not involved in IL-18-mediated susceptibility to L. amazonensis.
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Affiliation(s)
- Louisa M A Sousa
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil; Maryland Pathogen Research Institute, University of Maryland, College Park, MD, USA
| | - Matheus B H Carneiro
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Liliane M Dos Santos
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Caio Cotta Natale
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Magda E Resende
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - David M Mosser
- Maryland Pathogen Research Institute, University of Maryland, College Park, MD, USA
| | - Leda Q Vieira
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil.
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Li Y, To K, Kanellakis P, Hosseini H, Deswaerte V, Tipping P, Smyth MJ, Toh BH, Bobik A, Kyaw T. CD4+ natural killer T cells potently augment aortic root atherosclerosis by perforin- and granzyme B-dependent cytotoxicity. Circ Res 2014; 116:245-54. [PMID: 25398236 DOI: 10.1161/circresaha.116.304734] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
RATIONALE CD4(+) natural killer T (NKT) cells augment atherosclerosis in apolipoprotein E-deficient (ApoE)(-/-) mice but their mechanisms of action are unknown. OBJECTIVES We investigated the roles of bystander T, B, and NK cells; NKT cell-derived interferon-γ, interleukin (IL)-4, and IL-21 cytokines; and NKT cell-derived perforin and granzyme B cytotoxins in promoting CD4(+) NKT cell atherogenicity. METHODS AND RESULTS Transfer of CD4(+) NKT cells into T- and B-cell-deficient ApoE(-/-)Rag2(-/-) mice augmented aortic root atherosclerosis by ≈75% that was ≈30% of lesions in ApoE(-/-) mice; macrophage accumulation similarly increased. Transferred NKT cells were identified in the liver and atherosclerotic lesions of recipient mice. Transfer of CD4(+) NKT cells into T-, B-cell-deficient, and NK cell-deficient ApoE(-/-)Rag2(-/-)γC(-/-) mice also augmented atherosclerosis. These data indicate that CD4(+) NKT cells can exert proatherogenic effects independent of other lymphocytes. To investigate the role of NKT cell-derived interferon-γ, IL-4, and IL-21 cytokines and perforin and granzyme B cytotoxins, CD4(+) NKT cells from mice deficient in these molecules were transferred into NKT cell-deficient ApoE(-/-)Jα18(-/-) mice. CD4(+) NKT cells deficient in IL-4, interferon-γ, or IL-21 augmented atherosclerosis in ApoE(-/-)Jα18(-/-) mice by ≈95%, ≈80%, and ≈70%, respectively. Transfer of CD4(+) NKT cells deficient in perforin or granzyme B failed to augment atherosclerosis. Apoptotic cells, necrotic cores, and proinflammatory VCAM-1 (vascular cell adhesion molecule) and MCP-1 (monocyte chemotactic protein) were reduced in mice receiving perforin-deficient NKT cells. CD4(+) NKT cells are twice as potent as CD4(+) T cells in promoting atherosclerosis. CONCLUSIONS CD4(+) NKT cells potently promote atherosclerosis by perforin and granzyme B-dependent apoptosis that increases postapoptotic necrosis and inflammation.
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Affiliation(s)
- Yi Li
- From the BakerIDI Heart and Diabetes Institute, Melbourne, Australia (L.Y., K.T., P.K., H.H., V.D., A.B., T.K.); Department of Medicine, Centre for Inflammatory Diseases, Southern Clinical School (L.Y., K.T., P.T., B.-H.T., T.K.) and Department of Immunology, Central Clinical School, Faculty of Medicine Nursing and Health Sciences (A.B.), Monash University, Melbourne, Australia; Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia (M.J.S.); and School of Medicine, University of Queensland, Herston, Queensland, Australia (M.J.S.)
| | - Kelly To
- From the BakerIDI Heart and Diabetes Institute, Melbourne, Australia (L.Y., K.T., P.K., H.H., V.D., A.B., T.K.); Department of Medicine, Centre for Inflammatory Diseases, Southern Clinical School (L.Y., K.T., P.T., B.-H.T., T.K.) and Department of Immunology, Central Clinical School, Faculty of Medicine Nursing and Health Sciences (A.B.), Monash University, Melbourne, Australia; Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia (M.J.S.); and School of Medicine, University of Queensland, Herston, Queensland, Australia (M.J.S.)
| | - Peter Kanellakis
- From the BakerIDI Heart and Diabetes Institute, Melbourne, Australia (L.Y., K.T., P.K., H.H., V.D., A.B., T.K.); Department of Medicine, Centre for Inflammatory Diseases, Southern Clinical School (L.Y., K.T., P.T., B.-H.T., T.K.) and Department of Immunology, Central Clinical School, Faculty of Medicine Nursing and Health Sciences (A.B.), Monash University, Melbourne, Australia; Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia (M.J.S.); and School of Medicine, University of Queensland, Herston, Queensland, Australia (M.J.S.)
| | - Hamid Hosseini
- From the BakerIDI Heart and Diabetes Institute, Melbourne, Australia (L.Y., K.T., P.K., H.H., V.D., A.B., T.K.); Department of Medicine, Centre for Inflammatory Diseases, Southern Clinical School (L.Y., K.T., P.T., B.-H.T., T.K.) and Department of Immunology, Central Clinical School, Faculty of Medicine Nursing and Health Sciences (A.B.), Monash University, Melbourne, Australia; Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia (M.J.S.); and School of Medicine, University of Queensland, Herston, Queensland, Australia (M.J.S.)
| | - Virginie Deswaerte
- From the BakerIDI Heart and Diabetes Institute, Melbourne, Australia (L.Y., K.T., P.K., H.H., V.D., A.B., T.K.); Department of Medicine, Centre for Inflammatory Diseases, Southern Clinical School (L.Y., K.T., P.T., B.-H.T., T.K.) and Department of Immunology, Central Clinical School, Faculty of Medicine Nursing and Health Sciences (A.B.), Monash University, Melbourne, Australia; Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia (M.J.S.); and School of Medicine, University of Queensland, Herston, Queensland, Australia (M.J.S.)
| | - Peter Tipping
- From the BakerIDI Heart and Diabetes Institute, Melbourne, Australia (L.Y., K.T., P.K., H.H., V.D., A.B., T.K.); Department of Medicine, Centre for Inflammatory Diseases, Southern Clinical School (L.Y., K.T., P.T., B.-H.T., T.K.) and Department of Immunology, Central Clinical School, Faculty of Medicine Nursing and Health Sciences (A.B.), Monash University, Melbourne, Australia; Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia (M.J.S.); and School of Medicine, University of Queensland, Herston, Queensland, Australia (M.J.S.)
| | - Mark J Smyth
- From the BakerIDI Heart and Diabetes Institute, Melbourne, Australia (L.Y., K.T., P.K., H.H., V.D., A.B., T.K.); Department of Medicine, Centre for Inflammatory Diseases, Southern Clinical School (L.Y., K.T., P.T., B.-H.T., T.K.) and Department of Immunology, Central Clinical School, Faculty of Medicine Nursing and Health Sciences (A.B.), Monash University, Melbourne, Australia; Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia (M.J.S.); and School of Medicine, University of Queensland, Herston, Queensland, Australia (M.J.S.)
| | - Ban-Hock Toh
- From the BakerIDI Heart and Diabetes Institute, Melbourne, Australia (L.Y., K.T., P.K., H.H., V.D., A.B., T.K.); Department of Medicine, Centre for Inflammatory Diseases, Southern Clinical School (L.Y., K.T., P.T., B.-H.T., T.K.) and Department of Immunology, Central Clinical School, Faculty of Medicine Nursing and Health Sciences (A.B.), Monash University, Melbourne, Australia; Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia (M.J.S.); and School of Medicine, University of Queensland, Herston, Queensland, Australia (M.J.S.)
| | - Alexander Bobik
- From the BakerIDI Heart and Diabetes Institute, Melbourne, Australia (L.Y., K.T., P.K., H.H., V.D., A.B., T.K.); Department of Medicine, Centre for Inflammatory Diseases, Southern Clinical School (L.Y., K.T., P.T., B.-H.T., T.K.) and Department of Immunology, Central Clinical School, Faculty of Medicine Nursing and Health Sciences (A.B.), Monash University, Melbourne, Australia; Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia (M.J.S.); and School of Medicine, University of Queensland, Herston, Queensland, Australia (M.J.S.)
| | - Tin Kyaw
- From the BakerIDI Heart and Diabetes Institute, Melbourne, Australia (L.Y., K.T., P.K., H.H., V.D., A.B., T.K.); Department of Medicine, Centre for Inflammatory Diseases, Southern Clinical School (L.Y., K.T., P.T., B.-H.T., T.K.) and Department of Immunology, Central Clinical School, Faculty of Medicine Nursing and Health Sciences (A.B.), Monash University, Melbourne, Australia; Immunology in Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia (M.J.S.); and School of Medicine, University of Queensland, Herston, Queensland, Australia (M.J.S.).
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Gunawardhana LP, Baines KJ, Mattes J, Murphy VE, Simpson JL, Gibson PG. Differential DNA methylation profiles of infants exposed to maternal asthma during pregnancy. Pediatr Pulmonol 2014; 49:852-62. [PMID: 24166889 DOI: 10.1002/ppul.22930] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Revised: 07/29/2013] [Accepted: 08/13/2013] [Indexed: 11/06/2022]
Abstract
BACKGROUND Asthma is a complex disease that involves both genetic factors and environmental exposures. Aberrant epigenetic modifications, such as DNA methylation, may be important in asthma development. Fetal exposure to maternal asthma during critical periods of in utero development may lead to epigenetic alterations that predispose infants to a greater risk of developing asthma themselves. We investigated alterations in the DNA methylation profile of peripheral blood from infants exposed to maternal asthma during pregnancy. METHODS Peripheral blood was collected from 12-month-old infants born to women with (n = 25) and without (n = 15) doctor diagnosed asthma during pregnancy. Genomic DNA was extracted, bisulfite converted, and hybridized to Infinium Methylation 27 arrays (Illumina), containing over27,000 CpGs from 14,495 genes. CpG loci in only autosomal genes were classified as differentially methylated at the 99% level (P < 0.01, |DiffScore| > 22 and delta beta >0.06). RESULTS There were 70 CpG loci, corresponding to 67 genes that were significantly differentially methylated. Twelve CpG loci (11 genes) showed greater than 10% comparative difference in DNA methylation, including hyper-methylated loci of FAM181A, MRI1, PIWIL1, CHFR, DEFA1, MRPL28, AURKA, and hypo-methylated loci of NALP1L5, MAP8KIP3, ACAT2, and PM20D1 in maternal asthma. Methylation of MAPK8IP3 was significantly negatively correlated with maternal blood eosinophils (r = -0.38; P = 0.022), maternal eNO (r = -0.44; P = 0.005), and maternal serum total IgE (r = -0.39, P = 0.015). Methylation of AURKA negatively correlated with maternal hemoglobin (r = -0.43; P = 0.008), infants height (r = -0.51; P < 0.001) and weight (r = -0.36; P = 0.021). Methylation of PM20D1 was lower in infants born to mothers with asthma on inhaled corticosteroid treatment. Methylation of PM20D1 was lower and MRI1 was higher in infants born to atopic mothers without asthma. CONCLUSIONS In an Australian study population, exposure to maternal asthma during pregnancy is associated with differential methylation profiles of infants' peripheral blood DNA, which may act as risk factors for future asthma development.
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Affiliation(s)
- Lakshitha P Gunawardhana
- Priority Research Centre for Asthma and Respiratory Disease, Hunter Medical Research Institute, The University of Newcastle, Sydney, NSW, Australia
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Hedl M, Zheng S, Abraham C. The IL18RAP region disease polymorphism decreases IL-18RAP/IL-18R1/IL-1R1 expression and signaling through innate receptor-initiated pathways. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2014; 192:5924-32. [PMID: 24842757 PMCID: PMC4146459 DOI: 10.4049/jimmunol.1302727] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Fine-tuning of cytokine-inducing pathways is essential for immune homeostasis. Consistently, a dysregulated increase or decrease in pattern-recognition receptor (PRR)-induced signaling and cytokine secretion can lead to inflammatory bowel disease. Multiple gene loci are associated with inflammatory bowel disease, but their functional effects are largely unknown. One such region in chromosome 2q12 (rs917997), also associated with other immune-mediated diseases, encompasses IL18RAP. We found that human monocyte-derived macrophages (MDMs) from rs917997 AA risk carriers secrete significantly less cytokines than G carriers upon stimulation of multiple PRRs, including nucleotide-binding oligomerization domain 2 (NOD2). We identified that IL-18 signaling through IL-18RAP was critical in amplifying PRR-induced cytokine secretion in MDMs. IL-18RAP responded to NOD2-initiated early, caspase-1-dependent autocrine IL-18, which dramatically enhanced MAPK, NF-κB, PI3K, and calcium signaling. Reconstituting MAPK activation was sufficient to rescue decreased cytokines in NOD2-stimulated IL-18RAP-deficient MDMs. Relative to GG carriers, MDM from rs917997 AA carriers had decreased expression of cell-surface IL-18RAP protein, as well as of IL-18R1 and IL-1R1, genes also located in the IL18RAP region. Accordingly, these risk-carrier MDMs show diminished PRR-, IL-18-, and IL-1-induced MAPK and NF-κB signaling. Taken together, our results demonstrate clear functional consequences of the rs917997 risk polymorphism; this polymorphism leads to a loss-of-function through decreased IL-18RAP, IL-18R1, and IL-1R1 protein expression, which impairs autocrine IL-18 and IL-1 signaling, thereby leading to decreased cytokine secretion in MDMs upon stimulation of a broad range of PRRs.
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Affiliation(s)
- Matija Hedl
- Department of Internal Medicine, Yale University, New Haven, CT 06510
| | - Shasha Zheng
- Department of Internal Medicine, Yale University, New Haven, CT 06510
| | - Clara Abraham
- Department of Internal Medicine, Yale University, New Haven, CT 06510
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Mitchell AJ, Roediger B, Weninger W. Monocyte homeostasis and the plasticity of inflammatory monocytes. Cell Immunol 2014; 291:22-31. [PMID: 24962351 DOI: 10.1016/j.cellimm.2014.05.010] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2014] [Accepted: 05/27/2014] [Indexed: 12/13/2022]
Abstract
Monocytes are mononuclear myeloid cells that develop in the bone marrow and circulate within the bloodstream. Although they have long been argued to play a role in the repopulation of tissue-resident macrophages, this has been questioned by numerous recent studies, which has forced a reappraisal of their biology. Here we discuss monocyte development, as well as the homeostatic control of monocyte subpopulations within the blood. We also outline the known functions of monocyte subsets. Finally, we highlight the plastic nature of monocytes, which are capable of a remarkable range of phenotypic and functional changes that depend on signals from local microenvironments.
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Affiliation(s)
| | - Ben Roediger
- The Centenary Institute, Newtown, NSW 2042, Australia.
| | - Wolfgang Weninger
- The Centenary Institute, Newtown, NSW 2042, Australia; Discipline of Dermatology, University of Sydney, NSW, Australia; Department of Dermatology, Royal Prince Alfred Hospital, Camperdown, NSW, Australia.
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Van Hung T, Emoto N, Vignon-Zellweger N, Nakayama K, Yagi K, Suzuki Y, Hirata KI. Inhibition of vascular endothelial growth factor receptor under hypoxia causes severe, human-like pulmonary arterial hypertension in mice: potential roles of interleukin-6 and endothelin. Life Sci 2014; 118:313-28. [PMID: 24412382 DOI: 10.1016/j.lfs.2013.12.215] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Revised: 12/19/2013] [Accepted: 12/26/2013] [Indexed: 02/06/2023]
Abstract
AIMS Severe pulmonary arterial hypertension (PAH) is an incurable disease whose exact mechanisms remain unknown. However, growing evidence highlights the role of inflammation and endothelin (ET) signaling. The lack of reliable models makes it difficult to investigate the pathophysiology of this disease. Our aim was therefore to develop a mouse model of severe PAH closely mimicking the human condition to explore the role of interleukin-6 (IL-6), and ET signaling in advanced PAH progression. MAIN METHODS Young male SV129 mice received vascular endothelial growth factor receptor inhibitor (SU5416) three times a week and were exposed to hypoxia (10% O2) for three weeks. Molecular analysis and histological assessment were examined using real-time PCR, Western blot and immunostaining, respectively. KEY FINDINGS The developed murine model presented important characteristics of severe PAH in human: concentric neointimal wall thickening, plexogenic lesions, recruitment of macrophages, and distal arteriolar wall muscularization. We detected an increase of IL-6 production and a stronger macrophage recruitment in adventitia of remodeled arterioles developing plexogenic lesions. Moreover, ET-1 and ET receptor A were up-regulated in lung lysates and media of remodeled arterioles. Recombinant IL-6 stimulated the proliferation and regulated endothelial cells in increasing ET-1 and decreasing ET receptor B. SIGNIFICANCE These data describe a murine model, which displays the most important features of human severe PAH. We assume that inflammation, particularly IL-6 regulating ET signaling, plays a crucial role in forming plexogenic lesions. This model is thus reliable and might be used for a better understanding of severe PAH progression and treatment.
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Affiliation(s)
- Tran Van Hung
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicie, Kobe, Japan
| | - Noriaki Emoto
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicie, Kobe, Japan; Department of Clinical Pharmacy, Kobe Pharmaceutical University, Kobe, Japan.
| | | | - Kazuhiko Nakayama
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicie, Kobe, Japan; Department of Clinical Pharmacy, Kobe Pharmaceutical University, Kobe, Japan
| | - Keiko Yagi
- Department of Clinical Pharmacy, Kobe Pharmaceutical University, Kobe, Japan
| | - Yoko Suzuki
- Department of Clinical Pharmacy, Kobe Pharmaceutical University, Kobe, Japan
| | - Ken-ichi Hirata
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicie, Kobe, Japan
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Kageyama Y, Kobayashi H, Kato N, Shimazu M. Etanercept reduces the serum levels of macrophage chemotactic protein-1 in patients with rheumatoid arthritis. Mod Rheumatol 2014. [DOI: 10.3109/s10165-009-0175-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Maruotti N, Annese T, Cantatore FP, Ribatti D. Macrophages and angiogenesis in rheumatic diseases. Vasc Cell 2013; 5:11. [PMID: 23725043 PMCID: PMC3680215 DOI: 10.1186/2045-824x-5-11] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Accepted: 04/26/2013] [Indexed: 12/31/2022] Open
Abstract
Angiogenesis plays a key role in several rheumatic diseases, including rheumatoid arthritis, osteoarthritis, ankylosing spondylitis, systemic sclerosis, systemic lupus erythematosus, and vasculitides. An imbalance between angiogenic inducers and inhibitors seems to be a critical factor in pathogenesis of these diseases. Macrophages promote angiogenesis during rheumatoid arthritis. In addition, macrophages can produce a variety of pro-angiogenic factors that have been associated with the angiogenic response occurring during other rheumatic diseases. Lastly, macrophages could be a target in the treatment of rheumatoid arthritis and other rheumatic diseases. Nevertheless, further studies are needed to better elucidate the exact role of macrophage in angiogenesis in these diseases.
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Affiliation(s)
- Nicola Maruotti
- Rheumatology Clinic, Department of Medical and Surgical Sciences, University of Foggia Medical School- Ospedale “ D’Avanzo”, Foggia, Italy
| | - Tiziana Annese
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs, University of Bari Medical School, Piazza Giulio Cesare, 11, Policlinico, 70124, Bari, Italy
| | - Francesco Paolo Cantatore
- Rheumatology Clinic, Department of Medical and Surgical Sciences, University of Foggia Medical School- Ospedale “ D’Avanzo”, Foggia, Italy
| | - Domenico Ribatti
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs, University of Bari Medical School, Piazza Giulio Cesare, 11, Policlinico, 70124, Bari, Italy
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Lin YC, Chiang CH, Chang LT, Sun CK, Leu S, Shao PL, Hsieh MC, Tsai TH, Chua S, Chung SY, Kao YH, Yip HK. Simvastatin attenuates the additive effects of TNF-α and IL-18 on the connexin 43 up-regulation and over-proliferation of cultured aortic smooth muscle cells. Cytokine 2013; 62:341-51. [DOI: 10.1016/j.cyto.2013.04.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Revised: 03/11/2013] [Accepted: 04/01/2013] [Indexed: 02/03/2023]
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Balamayooran G, Batra S, Balamayooran T, Cai S, Pacher P, Jeyaseelan S. Intrapulmonary G-CSF rescues neutrophil recruitment to the lung and neutrophil release to blood in Gram-negative bacterial infection in MCP-1-/- mice. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2012; 189:5849-59. [PMID: 23129755 PMCID: PMC3518636 DOI: 10.4049/jimmunol.1200585] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
We previously demonstrated that MCP-1 is important for E. coli-induced neutrophil migration to the lungs. However, E. coli neither disseminates nor induces death in mice. Furthermore, the cell types and the host defense mechanisms that contribute to MCP-1-dependent neutrophil trafficking have not been defined. In this study, we sought to explore the cell types and the mechanisms associated with Klebsiella pneumoniae-mediated MCP-1-dependent neutrophil influx. MCP-1(-/-) mice are more susceptible to pulmonary K. pneumoniae infection and show higher bacterial burden in the lungs and dissemination. MCP-1(-/-) mice also display attenuated neutrophil influx, cytokine/chemokine production, and activation of NF-κB and MAPKs following intratracheal K. pneumoniae infection. rMCP-1 treatment in MCP-1(-/-) mice following K. pneumoniae infection rescued impairment in survival, bacterial clearance, and neutrophil accumulation in the lung. Neutrophil numbers in the blood of MCP-1(-/-) mice were associated with G-CSF concentrations in bronchoalveolar lavage fluid and blood. Bone marrow or resident cell-derived MCP-1 contributed to bacterial clearance, neutrophil accumulation, and cytokine/chemokine production in the lungs following infection. Furthermore, exogenous MCP-1 dose dependently increased neutrophil counts and G-CSF concentrations in the blood. Intriguingly, administration of intratracheal rG-CSF to MCP-1(-/-) mice after K. pneumoniae infection rescued survival, bacterial clearance and dissemination, and neutrophil influx in MCP-1(-/-) mice. Collectively, these novel findings unveil an unrecognized role of MCP-1 in neutrophil-mediated host immunity during K. pneumoniae pneumonia and illustrate that G-CSF could be used to rescue impairment in host immunity in individuals with absent or malfunctional MCP-1.
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Affiliation(s)
- Gayathriy Balamayooran
- Laboratory of Lung Biology, Department of Pathobiological Sciences and Center for Experimental Infectious Disease Research, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892
| | - Sanjay Batra
- Laboratory of Lung Biology, Department of Pathobiological Sciences and Center for Experimental Infectious Disease Research, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892
| | - Theivanthiran Balamayooran
- Laboratory of Lung Biology, Department of Pathobiological Sciences and Center for Experimental Infectious Disease Research, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892
| | - Shanshan Cai
- Laboratory of Lung Biology, Department of Pathobiological Sciences and Center for Experimental Infectious Disease Research, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892
| | - Pal Pacher
- Laboratory of Physiologic Studies, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892
| | - Samithamby Jeyaseelan
- Laboratory of Lung Biology, Department of Pathobiological Sciences and Center for Experimental Infectious Disease Research, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD 20892
- Section of Pulmonary and Critical Care Medicine, Department of Medicine, LSU Health Sciences Center, New Orleans, LA 70112
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Holubova M, Leba M, Sedmikova M, Vannucci L, Horak V. Characterization of three newly established rat sarcoma cell clones. In Vitro Cell Dev Biol Anim 2012; 48:610-8. [PMID: 23150138 DOI: 10.1007/s11626-012-9563-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2012] [Accepted: 10/08/2012] [Indexed: 01/13/2023]
Abstract
Establishment of new animal models using selected cell lines with different behaviour is very important for cancer investigations. In this study, we describe three morphologically distinct rat sarcoma clones-C4, C7 and D6-isolated from the R5-28 cell line. Cells of all clones expressed vimentin, fibronectin, laminin, collagen IV and matrix metalloproteinases 2 and 9. However, desmin, cytokeratins 8 and 18, ZO-1 and desmoplakins I and II were not detected. Significant proliferative capacity was documented by proliferating cell nuclear antigen expression and BrdU positivity. Karyotype of the C4, C7 and D6 cells greatly differed from diploid chromosome number of normal rat somatic cells. High expression of three cytokines-monocyte chemoattractant protein 1, tissue inhibitor of metalloproteinases 1 and vascular endothelial growth factor-was observed in all three clones. However, they varied in concentration of chemokines associated with neutrophil migration and activation-cytokine induced neutrophil chemoattractant 2 and lipopolysaccharide induced CXC chemokine. The C4 clone showed spontaneous tumour regression in vivo that was associated with significant changes in lymphocyte subpopulations.
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Affiliation(s)
- Monika Holubova
- Institute of Animal Physiology and Genetics, AS CR v.v.i., 277 21, Libechov, Czech Republic.
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Wyburn KR, Chadban SJ, Kwan T, Alexander SI, Wu H. Interleukin-18 binding protein therapy is protective in adriamycin nephropathy. Am J Physiol Renal Physiol 2012; 304:F68-76. [PMID: 23097468 DOI: 10.1152/ajprenal.00669.2011] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Adriamycin nephropathy (AN) is an experimental model of focal segmental glomerulosclerosis (FSGS) in which macrophages are considered to play a pathogenic role. We hypothesize that interleukin-18 (IL-18), largely derived from macrophages, is a key contributor to kidney injury in AN and a potential therapeutic target. In this study, BALB/c mice received adriamycin (9.6 mg/kg) via tail vein injection and subsequently were treated with either neutralizing IL-18 binding protein (IL-18BP; 250 μg) or normal saline (control). At 5 wk, IL-18 was upregulated in AN, and IL-18BP therapy afforded significant protection against the development of AN, resulting in less proteinuria (P < 0.01), kidney dysfunction (P < 0.01), glomerulosclerosis (P < 0.001), and interstitial accumulation of macrophages and T cells (P < 0.001). Gene expression of IL-18 downstream inflammatory molecules, including inducible nitric oxide synthase (P < 0.001), TNF-α (P < 0.001), and IFN-γ (P < 0.01); IL-17 (P < 0.001) and the chemokines CCL2 (P < 0.01) and CCL5 (P < 0.005), was reduced. We demonstrate that IL-18 plays a significant role in the pathogenesis of AN. The protective effect of IL-18BP therapy illustrates the importance of immune mediators in chronic proteinuric kidney disease and highlights the potential of IL-18BP therapy.
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Affiliation(s)
- Kate R Wyburn
- Collaborative Transplant Research Group, Royal Prince Alfred Hospital, University of Sydney, Sydney, New South Wales, Australia.
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Wu YJ, Xue M, Chen H. Licofelone inhibits interleukin-18-induced pro-inflammatory cytokine release and cellular proliferation in human mesangial cells. Basic Clin Pharmacol Toxicol 2012; 111:166-72. [PMID: 22433003 DOI: 10.1111/j.1742-7843.2012.00882.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2011] [Accepted: 03/12/2012] [Indexed: 11/30/2022]
Abstract
Licofelone, a novel dual anti-inflammatory drug that inhibits 5-lipoxygenase (5-LOX) and cyclooxygenase (COX), has recently been defined to have therapeutic effects in osteoarthritis. Both 5-LOX and COX play functional roles in the pathogenesis of glomerulonephritis in children as well. Interleukin-18 is a pro-inflammatory cytokine. It remains unclear whether licofelone can ameliorate inflammatory response of human mesangial cells (HMC) exposed to interleukin-18. In this study, HMC were cultured and exposed to interleukin-18 with or without pre-treatment of licofelone. COX-2 and 5-LOX enzyme activities in mesangial cells were determined with chromometry or high-performance liquid chromatography. Prostaglandin E2, cysteinyl leukotriene, monocyte chemotactic protein-1 and interferon-γ concentrations in culture medium were measured using an enzyme-linked immunosorbent assay. Western blotting was employed to detect phosphorylated mitogen-activated protein kinases ERK1/2, p38 and JNK1/2 in HMC. It was found that licofelone attenuated interleukin-18-induced COX-2 enzyme activity in HMC and prostaglandin E2 release in a dose-dependent manner. Similarly, licofelone inhibited interleukin-18-induced 5-LOX enzyme activity and leukotriene release. Licofelone reduced interleukin-18-induced phosphorylation of p38 mitogen-activated protein kinase and suppressed monocyte chemotactic protein-1 and interferon-γ synthesis. Moreover, licofelone inhibited IL-18-induced proliferation of mesangial cells. We conclude that licofelone inhibits interleukin-18-induced pro-inflammatory cytokine release and cellular proliferation in HMC, which may represent a really interesting therapeutic approach for glomerulonephritis in children.
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Affiliation(s)
- Yuan-Jun Wu
- Department of Pediatrics, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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Min KJ, Jang JH, Kwon TK. Inhibitory effects of melatonin on the lipopolysaccharide-induced CC chemokine expression in BV2 murine microglial cells are mediated by suppression of Akt-induced NF-κB and STAT/GAS activity. J Pineal Res 2012; 52:296-304. [PMID: 22225513 DOI: 10.1111/j.1600-079x.2011.00943.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Melatonin influences sleep and circadian rhythm, and it has anti-inflammatory functions. However, the mechanism of its anti-inflammatory roles is not well understood. In our studies, we show that melatonin blocked lipopolysaccharide (LPS)-induced CCL2 (monocyte chemotactic protein-1; MCP-1), CCL5 (Regulated upon Activation, Normal T-cell Expressed, and Secreted), and CCL9 (macrophage inflammatory protein-1γ) chemokine mRNA expression in BV2 murine microglial cells. Melatonin markedly inhibited LPS-induced Akt phosphorylation and NF-κB activation. Furthermore, melatonin inhibited LPS-induced STAT1/3 phosphorylation and interferon-gamma activated sequence (GAS)-driven transcriptional activity. Interestingly, these effects were not associated with reactive oxygen species scavenging effects of melatonin or melatonin receptor signal pathways. Taken together, our results suggested that melatonin has anti-inflammatory functions through down-regulation of chemokine expression by inhibition of NF-κB and STAT/GAS activation in LPS-stimulated BV2 murine microglial cell line.
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Affiliation(s)
- Kyoung-Jin Min
- Department of Immunology, School of Medicine, Keimyung University, Dalseo-Gu, Daegu, South Korea
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