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Lagunas-Rangel FA, Liepinsh E, Fredriksson R, Alsehli AM, Williams MJ, Dambrova M, Jönsson J, Schiöth HB. Off-target effects of statins: molecular mechanisms, side effects and the emerging role of kinases. Br J Pharmacol 2024. [PMID: 39180421 DOI: 10.1111/bph.17309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 06/25/2024] [Accepted: 07/10/2024] [Indexed: 08/26/2024] Open
Abstract
Statins are one of the most important classes of drugs. In this analytical review, we elucidate the intricate molecular mechanisms and toxicological rationale regarding both the on- (targeting 3-hydroxy-3-methylglutaryl-coenzyme A reductase [HMGCR]) and off-target effects of statins. Statins interact with a number of membrane kinases, such as epidermal growth factor receptor (EGFR), erb-b2 receptor tyrosine kinase 2 (HER2) and MET proto-oncogene, receptor tyrosine kinase (MET), as well as cytosolic kinases, such as SRC proto-oncogene, non-receptor tyrosine kinase (Src) and show inhibitory activity at nanomolar concentrations. In addition, they interact with calcium ATPases and peroxisome proliferator-activated receptor α (PPARα/NR1C1) at higher concentrations. Statins interact with mitochondrial complexes III and IV, and their inhibition of coenzyme Q10 synthesis also impairs the functioning of complexes I and II. Statins act as inhibitors of kinases, calcium ATPases and mitochondrial complexes, while activating PPARα. These off-target effects likely contribute to the side effects observed in patients undergoing statin therapy, including musculoskeletal symptoms and hepatic effects. Interestingly, some off-target effects of statins could also be the cause of favourable outcomes, relating to repurposing statins in conditions such as inflammatory disorders and cancer.
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Affiliation(s)
- Francisco Alejandro Lagunas-Rangel
- Department of Surgical Sciences, Functional Pharmacology and Neuroscience, Uppsala University, Uppsala, Sweden
- Laboratory of Pharmaceutical Pharmacology, Latvian Institute of Organic Synthesis, Riga, Latvia
| | - Edgars Liepinsh
- Laboratory of Pharmaceutical Pharmacology, Latvian Institute of Organic Synthesis, Riga, Latvia
| | - Robert Fredriksson
- Department of Pharmaceutical Biosciences, Uppsala University, Uppsala, Sweden
| | - Ahmed M Alsehli
- Department of Surgical Sciences, Functional Pharmacology and Neuroscience, Uppsala University, Uppsala, Sweden
- Department of Physiology, Faculty of Medicine, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Michael J Williams
- Department of Surgical Sciences, Functional Pharmacology and Neuroscience, Uppsala University, Uppsala, Sweden
| | - Maija Dambrova
- Laboratory of Pharmaceutical Pharmacology, Latvian Institute of Organic Synthesis, Riga, Latvia
- Department of Pharmaceutical Chemistry, Riga Stradiņš University, Riga, Latvia
| | - Jörgen Jönsson
- Department of Surgical Sciences, Functional Pharmacology and Neuroscience, Uppsala University, Uppsala, Sweden
| | - Helgi B Schiöth
- Department of Surgical Sciences, Functional Pharmacology and Neuroscience, Uppsala University, Uppsala, Sweden
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2
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Ghosh C, Kakar R, Hoyle RG, Liu Z, Guo C, Li J, Wang XY, Sun Y. Type I gamma phosphatidylinositol phosphate 5-kinase i5 controls cell sensitivity to interferon. Dev Cell 2024; 59:1028-1042.e5. [PMID: 38452758 PMCID: PMC11043016 DOI: 10.1016/j.devcel.2024.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 12/21/2023] [Accepted: 02/09/2024] [Indexed: 03/09/2024]
Abstract
The interferon signaling pathway is critical for host defense by serving diverse functions in both innate and adaptive immune responses. Here, we show that type I gamma phosphatidylinositol phosphate 5-kinase i5 (PIPKIγi5), an enzyme that synthesizes phosphatidylinositol-4,5-bisphosphate (PI4,5P2), controls the sensitivity to interferon in both human and mouse cells. PIPKIγi5 directly binds to the interferon-gamma (IFN-γ) downstream effector signal transducer and activator of transcription 1 (STAT1), which suppresses the STAT1 dimerization, IFN-γ-induced STAT1 nuclear translocation, and transcription of IFN-γ-responsive genes. Depletion of PIPKIγi5 significantly enhances IFN-γ signaling and strengthens an antiviral response. In addition, PIPKIγi5-synthesized PI4,5P2 can bind to STAT1 and promote the PIPKIγi5-STAT1 interaction. Similar to its interaction with STAT1, PIPKIγi5 is capable of interacting with other members of the STAT family, including STAT2 and STAT3, thereby suppressing the expression of genes mediated by these transcription factors. These findings identify the function of PIPKIγi5 in immune regulation.
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Affiliation(s)
- Chinmoy Ghosh
- Department of Oral and Craniofacial Molecular Biology, Philips Institute for Oral Health Research, School of Dentistry, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Ruchi Kakar
- Department of Oral and Craniofacial Molecular Biology, Philips Institute for Oral Health Research, School of Dentistry, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Rosalie G Hoyle
- Department of Medicinal Chemistry, Institute for Structural Biology, Drug Discovery and Development, School of Pharmacy, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Zheng Liu
- Department of Human and Molecular Genetics, School of Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Chunqing Guo
- Department of Human and Molecular Genetics, School of Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Jiong Li
- Department of Medicinal Chemistry, Institute for Structural Biology, Drug Discovery and Development, School of Pharmacy, Virginia Commonwealth University, Richmond, VA 23298, USA; Massey Cancer Center, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Xiang-Yang Wang
- Department of Human and Molecular Genetics, School of Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA; Massey Cancer Center, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Yue Sun
- Department of Oral and Craniofacial Molecular Biology, Philips Institute for Oral Health Research, School of Dentistry, Virginia Commonwealth University, Richmond, VA 23298, USA; Massey Cancer Center, Virginia Commonwealth University, Richmond, VA 23298, USA.
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3
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Nikooyeh B, Zargaraan A, Ebrahimof S, Kalayi A, Zahedirad M, Yazdani H, Rismanchi M, Karami T, Khazraei M, Jafarpour A, Neyestani TR. Added γ-oryzanol boosted anti-inflammatory effects of canola oil in adult subjects with type 2 diabetes: a randomized controlled clinical trial. Eur J Nutr 2024; 63:425-433. [PMID: 37971692 DOI: 10.1007/s00394-023-03275-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 10/25/2023] [Indexed: 11/19/2023]
Abstract
PURPOSE This study was conducted to examine the effects of daily intake of γ-oryzanol (ORZ)-fortified canola oil, as compared with plain canola and sunflower oils, on certain inflammatory and oxidative stress biomarkers in adult subjects with Type 2 Diabetes (T2D). METHODS We randomly allocated 92 adult subjects with T2D from both sexes to one of the following groups to receive: (a) ORZ-fortified canola oil (ORZO; n1 = 30); (b) unfortified canola oil (CANO; n2 = 32); or (c) sunflower oil (SUFO; n3 = 30) for 12 weeks. Dietary and laboratory evaluations were performed initially and finally. RESULTS Serum hs-CRP concentrations significantly decreased in ORZO group (from 3.1 ± 0.2 to 1.2 ± 0.2 mg/L), as compared with CANO (p = 0.003) and SUFO (p < 0.001) groups. Serum IL-6 significantly decreased just in ORZO (- 22.8%, p = 0.042) and CANO groups (- 19.8%, p = 0.038). However, the between-group differences were not significant. Serum IL-1β slightly decreased in ORZO (- 28.1%, p = 0.11) and increased in SUFO (+ 20.6%, p = 0.079) but between-group difference was statistically significant (p = 0.017). Serum IFN-γ concentrations decreased significantly only in ORZO (from 3.3 ± 0.08 to 2.9 ± 0.21 IU/mL, p = 0.044). Salivary IgA concentrations increased significantly in all three intervention groups. Notwithstanding, only the difference between ORZO and CANO groups was statistically significant (p = 0.042). Similarly, circulating malondialdehyde concentrations significantly decreased in all three groups but with no between-group significant difference. CONCLUSIONS Daily consumption of ORZ-fortified canola oil, compared with unfortified canola and sunflower oils, for 12 weeks resulted in boosting of certain anti-inflammatory effects of canola oil. These findings may have preventive implications for both clinicians and policy makers. This clinical trial was registered at clinicaltrials.gov (03.08.2022; NCT05271045).
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Affiliation(s)
- Bahareh Nikooyeh
- Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Azizollaah Zargaraan
- Department of Food and Nutrition Policy and Planning Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition and Food Science, Shahid Beheshti University of Medical Sciences and Health Services, Tehran, Iran
| | - Samira Ebrahimof
- Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Kalayi
- Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maliheh Zahedirad
- Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hootan Yazdani
- Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Marjan Rismanchi
- Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Taher Karami
- Department of Research and Development, Kourosh Food Industry, Tehran, Iran
| | | | - Ali Jafarpour
- Quality Assurance Unit, Kourosh Food Industry, Tehran, Iran
| | - Tirang R Neyestani
- Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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4
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Bettiol A, Urban ML, Emmi G, Galora S, Argento FR, Fini E, Borghi S, Bagni G, Mattioli I, Prisco D, Fiorillo C, Becatti M. SIRT1 and thrombosis. Front Mol Biosci 2024; 10:1325002. [PMID: 38304233 PMCID: PMC10833004 DOI: 10.3389/fmolb.2023.1325002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 12/29/2023] [Indexed: 02/03/2024] Open
Abstract
Thrombosis is a major cause of morbidity and mortality worldwide, with a complex and multifactorial pathogenesis. Recent studies have shown that SIRT1, a member of the sirtuin family of NAD + -dependent deacetylases, plays a crucial role in regulating thrombosis, modulating key pathways including endothelial activation, platelet aggregation, and coagulation. Furthermore, SIRT1 displays anti-inflammatory activity both in vitro, in vivo and in clinical studies, particularly via the reduction of oxidative stress. On these bases, several studies have investigated the therapeutic potential of targeting SIRT1 for the prevention of thrombosis. This review provides a comprehensive and critical overview of the main preclinical and clinical studies and of the current understanding of the role of SIRT1 in thrombosis.
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Affiliation(s)
- Alessandra Bettiol
- Department of Experimental and Clinical Medicine, University of Firenze, Firenze, Italy
| | - Maria Letizia Urban
- Department of Experimental and Clinical Medicine, University of Firenze, Firenze, Italy
| | - Giacomo Emmi
- Department of Experimental and Clinical Medicine, University of Firenze, Firenze, Italy
| | - Silvia Galora
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Firenze, Firenze, Italy
| | - Flavia Rita Argento
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Firenze, Firenze, Italy
| | - Eleonora Fini
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Firenze, Firenze, Italy
| | - Serena Borghi
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Firenze, Firenze, Italy
| | - Giacomo Bagni
- Department of Experimental and Clinical Medicine, University of Firenze, Firenze, Italy
| | - Irene Mattioli
- Department of Experimental and Clinical Medicine, University of Firenze, Firenze, Italy
| | - Domenico Prisco
- Department of Experimental and Clinical Medicine, University of Firenze, Firenze, Italy
| | - Claudia Fiorillo
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Firenze, Firenze, Italy
| | - Matteo Becatti
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Firenze, Firenze, Italy
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5
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Langston PK, Sun Y, Ryback BA, Mueller AL, Spiegelman BM, Benoist C, Mathis D. Regulatory T cells shield muscle mitochondria from interferon-γ-mediated damage to promote the beneficial effects of exercise. Sci Immunol 2023; 8:eadi5377. [PMID: 37922340 PMCID: PMC10860652 DOI: 10.1126/sciimmunol.adi5377] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 10/02/2023] [Indexed: 11/05/2023]
Abstract
Exercise enhances physical performance and reduces the risk of many disorders such as cardiovascular disease, type 2 diabetes, dementia, and cancer. Exercise characteristically incites an inflammatory response, notably in skeletal muscles. Although some effector mechanisms have been identified, regulatory elements activated in response to exercise remain obscure. Here, we have addressed the roles of Foxp3+CD4+ regulatory T cells (Tregs) in the healthful activities of exercise via immunologic, transcriptomic, histologic, metabolic, and biochemical analyses of acute and chronic exercise models in mice. Exercise rapidly induced expansion of the muscle Treg compartment, thereby guarding against overexuberant production of interferon-γ and consequent metabolic disruptions, particularly mitochondrial aberrancies. The performance-enhancing effects of exercise training were dampened in the absence of Tregs. Thus, exercise is a natural Treg booster with therapeutic potential in disease and aging contexts.
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Affiliation(s)
- P. Kent Langston
- Department of Immunology, Harvard Medical School; Boston, 02115, USA
| | - Yizhi Sun
- Department of Cancer Biology, Dana-Farber Cancer Institute; Boston, 02115, USA
- Department of Cell Biology, Harvard Medical School; Boston, 02115, USA
| | - Birgitta A. Ryback
- Department of Cancer Biology, Dana-Farber Cancer Institute; Boston, 02115, USA
| | - Amber L. Mueller
- Department of Genetics, Harvard Medical School; Boston, 02115, USA
| | - Bruce M. Spiegelman
- Department of Cancer Biology, Dana-Farber Cancer Institute; Boston, 02115, USA
- Department of Cell Biology, Harvard Medical School; Boston, 02115, USA
| | | | - Diane Mathis
- Department of Immunology, Harvard Medical School; Boston, 02115, USA
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6
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Zhang J, Koolmeister C, Han J, Filograna R, Hanke L, Àdori M, Sheward DJ, Teifel S, Gopalakrishna S, Shao Q, Liu Y, Zhu K, Harris RA, McInerney G, Murrell B, Aoun M, Bäckdahl L, Holmdahl R, Pekalski M, Wedell A, Engvall M, Wredenberg A, Karlsson Hedestam GB, Castro Dopico X, Rorbach J. Antigen receptor stimulation induces purifying selection against pathogenic mitochondrial tRNA mutations. JCI Insight 2023; 8:e167656. [PMID: 37681412 PMCID: PMC10544217 DOI: 10.1172/jci.insight.167656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 07/27/2023] [Indexed: 09/09/2023] Open
Abstract
Pathogenic mutations in mitochondrial (mt) tRNA genes that compromise oxidative phosphorylation (OXPHOS) exhibit heteroplasmy and cause a range of multisyndromic conditions. Although mitochondrial disease patients are known to suffer from abnormal immune responses, how heteroplasmic mtDNA mutations affect the immune system at the molecular level is largely unknown. Here, in mice carrying pathogenic C5024T in mt-tRNAAla and in patients with mitochondrial encephalomyopathy, lactic acidosis, stroke-like episodes (MELAS) syndrome carrying A3243G in mt-tRNALeu, we found memory T and B cells to have lower pathogenic mtDNA mutation burdens than their antigen-inexperienced naive counterparts, including after vaccination. Pathogenic burden reduction was less pronounced in myeloid compared with lymphoid lineages, despite C5024T compromising macrophage OXPHOS capacity. Rapid dilution of the C5024T mutation in T and B cell cultures could be induced by antigen receptor-triggered proliferation and was accelerated by metabolic stress conditions. Furthermore, we found C5024T to dysregulate CD8+ T cell metabolic remodeling and IFN-γ production after activation. Together, our data illustrate that the generation of memory lymphocytes shapes the mtDNA landscape, wherein pathogenic variants dysregulate the immune response.
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Affiliation(s)
- Jingdian Zhang
- Department of Medical Biochemistry and Biophysics, and
- Max Planck Institute Biology of Ageing-Karolinska Institutet Laboratory, Karolinska Institutet, Stockholm, Sweden
| | - Camilla Koolmeister
- Department of Medical Biochemistry and Biophysics, and
- Max Planck Institute Biology of Ageing-Karolinska Institutet Laboratory, Karolinska Institutet, Stockholm, Sweden
| | - Jinming Han
- Applied Immunology and Immunotherapy, Department of Clinical Neuroscience, Center for Molecular Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Roberta Filograna
- Department of Medical Biochemistry and Biophysics, and
- Max Planck Institute Biology of Ageing-Karolinska Institutet Laboratory, Karolinska Institutet, Stockholm, Sweden
| | - Leo Hanke
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Monika Àdori
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Daniel J. Sheward
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
- Institute of Infectious Diseases and Molecular Medicine, University of Cape Town, Cape Town, South Africa
| | - Sina Teifel
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Shreekara Gopalakrishna
- Department of Medical Biochemistry and Biophysics, and
- Max Planck Institute Biology of Ageing-Karolinska Institutet Laboratory, Karolinska Institutet, Stockholm, Sweden
| | - Qiuya Shao
- Department of Medical Biochemistry and Biophysics, and
- Max Planck Institute Biology of Ageing-Karolinska Institutet Laboratory, Karolinska Institutet, Stockholm, Sweden
| | - Yong Liu
- Department of Medical Biochemistry and Biophysics, and
- Max Planck Institute Biology of Ageing-Karolinska Institutet Laboratory, Karolinska Institutet, Stockholm, Sweden
| | - Keying Zhu
- Applied Immunology and Immunotherapy, Department of Clinical Neuroscience, Center for Molecular Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Robert A. Harris
- Applied Immunology and Immunotherapy, Department of Clinical Neuroscience, Center for Molecular Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Gerald McInerney
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Ben Murrell
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Mike Aoun
- Division of Medical Inflammation Research, Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, Sweden
| | - Liselotte Bäckdahl
- Division of Medical Inflammation Research, Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, Sweden
| | - Rikard Holmdahl
- Division of Medical Inflammation Research, Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, Sweden
| | - Marcin Pekalski
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
| | - Anna Wedell
- Max Planck Institute Biology of Ageing-Karolinska Institutet Laboratory, Karolinska Institutet, Stockholm, Sweden
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Center for Inherited Metabolic Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - Martin Engvall
- Center for Inherited Metabolic Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - Anna Wredenberg
- Department of Medical Biochemistry and Biophysics, and
- Max Planck Institute Biology of Ageing-Karolinska Institutet Laboratory, Karolinska Institutet, Stockholm, Sweden
- Center for Inherited Metabolic Diseases, Karolinska University Hospital, Stockholm, Sweden
| | | | - Xaquin Castro Dopico
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Joanna Rorbach
- Department of Medical Biochemistry and Biophysics, and
- Max Planck Institute Biology of Ageing-Karolinska Institutet Laboratory, Karolinska Institutet, Stockholm, Sweden
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7
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Elwany NE, Abdelhamid AM, Mohamed NM, Khalil SS, Elsayed Orabi EE, Abdelfattah AM. Vinpocetine alleviates intestinal ischemia/reperfusion injury and enhances M2 macrophage polarization in rats: Role of SIRT1/SOCS3/STAT3 signaling pathway. Int Immunopharmacol 2023; 122:110654. [PMID: 37459783 DOI: 10.1016/j.intimp.2023.110654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 06/28/2023] [Accepted: 07/12/2023] [Indexed: 08/25/2023]
Abstract
Vinpocetine (Vinpo) is a neuroprotective vasodilator drug. It is an effective therapeutic agent for a variety of cerebrovascular and cognitive disorders. However, its potential protective efficacy on intestinal ischemia/reperfusion (I/R) injury remains elusive. The present study aimed to investigate the effect of Vinpo on intestinal I/R injury and to explore its modulatory effect on sirtuin (SIRT1)/ Suppressor of cytokine signaling (SOCS3)/ Signal Transducer and Activator of Transcription (STAT3) signaling. Twenty-four male Wistar albino rats were randomly allocated into four groups. G1 (sham): rats were subjected to surgical stress without I/R, GII (I/R): rats were subjected to 60 min/2-h I/R, GIII (Vinpo + I/R): rats were pre-treated with Vinpo (20 mg/kg/day, P.O. daily) for 2 weeks before intestinal I/R; GIV (EX527 + Vinpo + I/R): rats received both Vinpo (20 mg/kg/day, P.O.) and EX527 (5 mg/kg, once every 2 days, i.p) for 2 weeks before intestinal I/R. The current results showed that Vinpo improved the intestinal histopathological picture, enhanced M1 to M2 macrophage polarization and alleviated the I/R-induced increase in interleukins (IL-6, IL-1β), tumor necrosis factor (TNF-α), inducible nitric oxide synthase (i-NOS), and nitric oxide (NO). Additionally, Vinpo pretreatment upregulated SIRT1 mRNA expression/protein level and SOCS3 mRNA expression while downregulating P-STAT3 immunoreactivity. The effects of Vinpo were attenuated by the SIRT1 inhibitor EX527. We concluded that Vinpo ameliorated the intestinal I/R injury and enhanced M2 anti-inflammatory macrophage polarization through modulation of SIRT1/SOCS3/STAT3/i-NOS cascade.
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Affiliation(s)
- Nisreen E Elwany
- Clinical Pharmacology Department, Faculty of Medicine, Zagazig University, Egypt
| | | | | | - Sama S Khalil
- Medical Physiology Department, Faculty of Medicine, Zagazig University, Egypt
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8
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Grabowska AD, Wątroba M, Witkowska J, Mikulska A, Sepúlveda N, Szukiewicz D. Interplay between Systemic Glycemia and Neuroprotective Activity of Resveratrol in Modulating Astrocyte SIRT1 Response to Neuroinflammation. Int J Mol Sci 2023; 24:11640. [PMID: 37511397 PMCID: PMC10380505 DOI: 10.3390/ijms241411640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 07/14/2023] [Accepted: 07/17/2023] [Indexed: 07/30/2023] Open
Abstract
The flow of substances between the blood and the central nervous system is precisely regulated by the blood-brain barrier (BBB). Its disruption due to unbalanced blood glucose levels (hyper- and hypoglycemia) occurring in metabolic disorders, such as type 2 diabetes, can lead to neuroinflammation, and increase the risk of developing neurodegenerative diseases. One of the most studied natural anti-diabetic, anti-inflammatory, and neuroprotective compounds is resveratrol (RSV). It activates sirtuin 1 (SIRT1), a key metabolism regulator dependent on cell energy status. The aim of this study was to assess the astrocyte SIRT1 response to neuroinflammation and subsequent RSV treatment, depending on systemic glycemia. For this purpose, we used an optimized in vitro model of the BBB consisting of endothelial cells and astrocytes, representing microvascular and brain compartments (MC and BC), in different glycemic backgrounds. Astrocyte-secreted SIRT1 reached the highest concentration in hypo-, the lowest in normo-, and the lowest in hyperglycemic backgrounds. Lipopolysaccharide (LPS)-induced neuroinflammation caused a substantial decrease in SIRT1 in all glycemic backgrounds, as observed earliest in hyperglycemia. RSV partially counterbalanced the effect of LPS on SIRT1 secretion, most remarkably in normoglycemia. Our results suggest that abnormal glycemic states have a worse prognosis for RSV-therapy effectiveness compared to normoglycemia.
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Affiliation(s)
- Anna D. Grabowska
- Laboratory of the Blood-Brain Barrier, Department of Biophysics, Physiology and Pathophysiology, Medical University of Warsaw, Chalubinskiego 5, 02-004 Warsaw, Poland; (M.W.); (J.W.); (A.M.); (D.S.)
| | - Mateusz Wątroba
- Laboratory of the Blood-Brain Barrier, Department of Biophysics, Physiology and Pathophysiology, Medical University of Warsaw, Chalubinskiego 5, 02-004 Warsaw, Poland; (M.W.); (J.W.); (A.M.); (D.S.)
| | - Joanna Witkowska
- Laboratory of the Blood-Brain Barrier, Department of Biophysics, Physiology and Pathophysiology, Medical University of Warsaw, Chalubinskiego 5, 02-004 Warsaw, Poland; (M.W.); (J.W.); (A.M.); (D.S.)
| | - Agnieszka Mikulska
- Laboratory of the Blood-Brain Barrier, Department of Biophysics, Physiology and Pathophysiology, Medical University of Warsaw, Chalubinskiego 5, 02-004 Warsaw, Poland; (M.W.); (J.W.); (A.M.); (D.S.)
| | - Nuno Sepúlveda
- Faculty of Mathematics and Information Science, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland
- CEAUL—Centro de Estatística e Aplicações da Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Dariusz Szukiewicz
- Laboratory of the Blood-Brain Barrier, Department of Biophysics, Physiology and Pathophysiology, Medical University of Warsaw, Chalubinskiego 5, 02-004 Warsaw, Poland; (M.W.); (J.W.); (A.M.); (D.S.)
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9
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Meyer A, Troyanov Y, Korathanakhun P, Landon-Cardinal O, Leclair V, Allard-Chamard H, Bourré-Tessier J, Makhzoum JP, Isabelle C, Larue S, Grand'Maison F, Massie R, Page ML, Mansour AM, Routhier N, Zarka F, Roy F, Sonnen J, Satoh M, Fritzler M, Hudson M, Senécal JL, Karamchandani J, Ellezam B, O'Ferrall E. Myositis with prominent B cell aggregates may meet classification criteria for sporadic inclusion body myositis. Neuromuscul Disord 2023; 33:169-182. [PMID: 36649672 DOI: 10.1016/j.nmd.2022.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 11/30/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022]
Abstract
The objective of this study was to report the clinical, serological and pathological features of patients with autoimmune myositis other than dermatomyositis, who displayed both muscle weakness on physical examination and prominent B cell aggregates on muscle pathology, defined as ≥ 30 CD20+ cells/aggregate. Specifically, the presence of a brachio-cervical inflammatory myopathies or a sporadic inclusion body myositis (sIBM) phenotype was recorded. Over a three-year period, eight patients were identified from two university neuropathology referral centers. Seven of 8 (88%) patients had an associated connective tissue disease (CTD): rheumatoid arthritis (n=3), systemic sclerosis (n=2), Sjögren's syndrome (n=1) and systemic lupus erythematosus (n=1), while one patient died on initial presentation without a complete serological and cancer investigation. A brachio-cervical phenotype, i.e. neck weakness, proximal weakness more than distal and shoulder abduction weakness greater than hip flexors, was seen in two patients (25%), while one patient had both proximal and diaphragmatic weakness. In contrast, an IBM-like clinical phenotype was seen in the last five patients (63%), who either had finger flexor weakness and/or quadriceps weakness ≤ 4 on the manual muscle testing MRC-5 scale. Although these 5 patients met at least one set of classification criteria for sIBM, an integrated clinico-sero-pathological approach argued against a diagnosis of sIBM. In summary, in a weak patient with myositis plus an associated CTD and lymphoid aggregates at muscle pathology, B cell predominant aggregates may represent a morphological biomarker against a diagnosis of sIBM.
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Affiliation(s)
- Alain Meyer
- Exploration fonctionnelle musculaire, Service de physiologie, Service de rhumatologie, Centre de références des maladies autoimmunes rares, Hôpitaux universitaires de Strasbourg, Université de Strasbourg, Strasbourg, France.
| | - Yves Troyanov
- Department of Medicine, University of Montreal, Montreal, Québec, Canada; Division of Rheumatology, Hôpital du Sacré-Coeur, Montreal, Québec, Canada
| | - Pat Korathanakhun
- Department of Neurology, McGill University, Montreal, Québec, Canada; Montreal Neurological Institute and Hospital, Montreal, Québec, Canada
| | - Océane Landon-Cardinal
- Department of Medicine, University of Montreal, Montreal, Québec, Canada; Division of Rheumatology, Centre hospitalier de l'Université de Montréal, Montreal, Québec, Canada; CHUM Research Center, Montreal, Québec, Canada
| | - Valérie Leclair
- Department of Medicine, McGill University, Montreal, Québec, Canada; Division of Rheumatology, Jewish General Hospital, Montreal, Québec, Canada
| | - Hughes Allard-Chamard
- Department of Medicine, Sherbrooke University, Sherbrooke, Québec, Canada; Division of Rheumatology, CHUS, Sherbrooke, Québec, Canada
| | - Josiane Bourré-Tessier
- Department of Medicine, University of Montreal, Montreal, Québec, Canada; Division of Rheumatology, Centre hospitalier de l'Université de Montréal, Montreal, Québec, Canada; CHUM Research Center, Montreal, Québec, Canada
| | - Jean-Paul Makhzoum
- Department of Medicine, University of Montreal, Montreal, Québec, Canada; Division of Internal Medicine, Hôpital du Sacré-Coeur, Montreal, Québec, Canada
| | - Catherine Isabelle
- Department of Medicine, Sherbrooke University, Sherbrooke, Québec, Canada; Division of Rheumatology, Hôpital Charles-Lemoyne, Longueuil, Québec, Canada
| | - Sandrine Larue
- Department of Medicine, Sherbrooke University, Sherbrooke, Québec, Canada; Division of Neurology, Hôpital Charles-Lemoyne, Longueuil, Québec, Canada
| | - Francois Grand'Maison
- Department of Medicine, Sherbrooke University, Sherbrooke, Québec, Canada; Division of Neurology, Hôpital Charles-Lemoyne, Longueuil, Québec, Canada
| | - Rami Massie
- Department of Neurology, McGill University, Montreal, Québec, Canada; Montreal Neurological Institute and Hospital, Montreal, Québec, Canada
| | - Matthieu Le Page
- Division of Rheumatology, Centre hospitalier régional de Lanaudière, Saint-Charles-Borromée, Québec, Canada
| | - Anne-Marie Mansour
- Department of Medicine, University of Montreal, Montreal, Québec, Canada; Division of Internal Medicine, Hôpital du Sacré-Coeur, Montreal, Québec, Canada
| | - Nathalie Routhier
- Department of Medicine, University of Montreal, Montreal, Québec, Canada; Division of Internal Medicine, Hôpital du Sacré-Coeur, Montreal, Québec, Canada
| | - Farah Zarka
- Department of Medicine, University of Montreal, Montreal, Québec, Canada; Division of Internal Medicine, Hôpital du Sacré-Coeur, Montreal, Québec, Canada
| | - Flavie Roy
- Department of Medicine, University of Montreal, Montreal, Québec, Canada
| | - Joshua Sonnen
- Department of Neurology, McGill University, Montreal, Québec, Canada; Montreal Neurological Institute and Hospital, Montreal, Québec, Canada; Department of Pathology, McGill University, Montreal, Québec, Canada
| | - Minoru Satoh
- Department of Clinical Nursing, School of Health Sciences, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Marvin Fritzler
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Marie Hudson
- Department of Medicine, McGill University, Montreal, Québec, Canada; Division of Rheumatology, Jewish General Hospital, Montreal, Québec, Canada; Lady Davis Institute, Jewish General Hospital, Montreal, Québec, Canada
| | - Jean-Luc Senécal
- Department of Medicine, University of Montreal, Montreal, Québec, Canada; Division of Rheumatology, Centre hospitalier de l'Université de Montréal, Montreal, Québec, Canada; CHUM Research Center, Montreal, Québec, Canada
| | - Jason Karamchandani
- Montreal Neurological Institute and Hospital, Montreal, Québec, Canada; Department of Pathology, McGill University, Montreal, Québec, Canada
| | - Benjamin Ellezam
- Department of Pathology and Cell Biology, University of Montreal, Montreal, Québec, Canada; Department of Pathology, Hôpital Sainte-Justine, Montreal, Québec, Canada
| | - Erin O'Ferrall
- Department of Neurology, McGill University, Montreal, Québec, Canada; Montreal Neurological Institute and Hospital, Montreal, Québec, Canada; Department of Pathology, McGill University, Montreal, Québec, Canada
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10
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Pang S, Zhang Z, Zhou Y, Zhang J, Yan B. Genetic Variants of SIRT1 Gene Promoter in Type 2 Diabetes. Int J Endocrinol 2023; 2023:6919275. [PMID: 36747995 PMCID: PMC9899147 DOI: 10.1155/2023/6919275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 01/05/2023] [Accepted: 01/19/2023] [Indexed: 01/29/2023] Open
Abstract
Type 2 diabetes (T2D) is a highly heterogeneous and polygenic disease. To date, genetic causes and underlying mechanisms for T2D remain unclear. SIRT1, one member of highly conserved NAD-dependent class III deacetylases, has been implicated in many human diseases. Accumulating evidence indicates that SIRT1 is involved in insulin resistance and impaired pancreatic β-cell function, the two hallmarks of T2D. Thus, we speculated that altered SIRT1 levels, resulting from the genetic variants within its regulatory region of SIRT1 gene, may contribute to the T2D development. In this study, the SIRT1 gene promoter was genetically analyzed in T2D patients (n = 218) and healthy controls (n = 358). A total of 20 genetic variants, including 7 single-nucleotide polymorphisms (SNPs), were identified. Five heterozygous genetic variants (g.4114-15InsA, g.4801G > A, g.4816G > C, g.4934G > T, and g.4963_64Ins17bp) and one SNP (g.4198A > C (rs35706870)) were identified in T2D patients, but in none of the controls. The frequencies of two SNPs (g.4540A > G (rs3740051) (OR: 1.75, 95% CI: 1.24-2.47, P < 0.001 in dominant genetic model) and g.4821G > T (rs35995735)) (OR: 3.58, 95% CI: 1.94-6.60, P < 0.001 in dominant genetic model) were significantly higher in T2D patients. Further association and haplotype analyses confirmed that these two SNPs were strongly linked, contributing to the T2D (OR: 1.442, 95% CI: 1.080-1.927, P < 0.05). Moreover, most of the genetic variants identified in T2D were disease-specific. Taken together, the genetic variants within SIRT1 gene promoter might contribute to the T2D development by altering SIRT1 levels. Underlying molecular mechanism needs to be further explored.
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Affiliation(s)
- Shuchao Pang
- Shandong Provincial Sino-US Cooperation Research Center for Translational Medicine, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong 272029, China
| | - Zhengjun Zhang
- Division of Endocrinology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong 272029, China
| | - Yu Zhou
- Shandong Provincial Sino-US Cooperation Research Center for Translational Medicine, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong 272029, China
| | - Jie Zhang
- Cardiovascular Center, Beijing Tongren Hospital, Capital Medical University, Dongcheng, Beijing 100730, China
| | - Bo Yan
- Shandong Provincial Sino-US Cooperation Research Center for Translational Medicine, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong 272029, China
- Institute of Precision Medicine, Jining Medical University, Jining, Shandong 272067, China
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MiR-302a Regenerates Human Corneal Endothelial Cells against IFN-γ-Induced Cell Death. Cells 2022; 12:cells12010036. [PMID: 36611829 PMCID: PMC9818234 DOI: 10.3390/cells12010036] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 12/08/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022] Open
Abstract
Damage to human corneal endothelial cells (hCECs) leads to bullous keratopathy because these cells cannot be regenerated in vivo. In this study, we investigated the protective role of microRNA (miR)-302a against interferon-γ (IFN-γ)-induced senescence and cell death of hCECs. Cultured hCECs were transfected with miR-302a and treated with IFN-γ (20 ng/mL) to evaluate the protective effect of miR-302a on IFN-γ-induced cell death. Senescence was evaluated by the senescence-associated β-galactosidase (SA-β-gal) assay, and the secretion of senescence-associated secretory phenotype (SASP) factors was analyzed. Mitochondrial function and endoplasmic reticulum (ER) stress were assessed. We revealed that miR-302a enhanced the cell viability and proliferation of hCECs and that IFN-γ increased the cell size, the number of SA-β-gal-positive cells, and SASP factors, and arrested the cell cycle, which was eliminated by miR-302a. miR-302a ameliorated mitochondrial oxidative stress and ER stress levels which were induced by IFN-γ. IFN-γ decreased the mitochondrial membrane potential and promoted autophagy, which was eliminated by miR-302a. The in vivo study showed that regeneration of rat CECs was promoted in the miR-302a group by inhibiting IFN-γ and enhancing mitochondrial function. In conclusion, miR-302a eliminated IFN-γ-induced senescence and cellular damage by regulating the oxidative and ER stress, and promoting the proliferation of CECs. Therefore, miR-302a may be a therapeutic option to protect hCECs against IFN-γ-induced stress.
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12
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Opstad TB, Farup PG, Rootwelt H, Aaseth JO. Changes in circulating sirtuin 1 after bariatric surgery. Nutr Metab Cardiovasc Dis 2022; 32:2858-2864. [PMID: 36404480 DOI: 10.1016/j.numecd.2022.09.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 09/07/2022] [Accepted: 09/16/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND AIMS Obesity is associated with chronic inflammation and oxidative stress. Weight loss after bariatric surgery improves the inflammatory state and risk of cardiovascular disease. Improvement in metabolic dysfunction might be associated with changes in the activity of sirtuin 1 (SIRT1) and we aimed to investigate the effect of bariatric surgery on its circulating levels. METHODS AND RESULTS This is a sub-study of a prospective cohort study, including 110 subjects with morbid obesity. The surgical procedure was either laparoscopic Roux-en-Y gastric bypass (RYGB) or sleeve gastrectomy (SG). Blood was sampled at inclusion and six and 12 months after surgery. SIRT1 was measured in EDTA plasma with an enzyme-linked immunosorbent assay. The mean age in the population was 43 years, 80% were women and mean body mass index (BMI) was 38.8 kg/m2. RYGB and SG were performed in 89 and 21 subjects, respectively. SIRT1 concentration was significantly reduced from baseline to six and 12 months after surgery, with mean values (SD) 156.8 (82.6), 119.5 (65.6) and 94.9 (45.6) ng/mL, respectively, (p ≤ 0.002, all), accompanied by significant reductions in C-reactive protein (CRP), BMI and triglycerides from inclusion (p < 0.001, all). Type of surgery did not differently modify SIRT1 levels (p = 0.09). CRP and triglycerides were both positively predictive of SIRT1 levels (p ≤ 0.001, both). CONCLUSION SIRT1 concentration was significantly lower six and 12 months after bariatric surgery. CRP and triglycerides independently predicted SIRT1 levels, suggesting that reduction in SIRT1 levels might not intrinsically be related to weight reduction, but to improvement in metaflammation.
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Affiliation(s)
- Trine B Opstad
- Center for Clinical Heart Research, Department of Cardiology, Oslo University Hospital Ullevål, 0240 Oslo, Norway; Faculty of Medicine, University of Oslo, 0315 Oslo, Norway.
| | - Per G Farup
- Department of Research, Innlandet Hospital Trust, PB 104, N-2381 Brumunddal, Norway; Department of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, N-7491 Trondheim, Norway
| | - Helge Rootwelt
- Department of Medical Biochemistry, Oslo University Hospital, 0372 Oslo, Norway
| | - Jan O Aaseth
- Department of Research, Innlandet Hospital Trust, PB 104, N-2381 Brumunddal, Norway; Faculty of Health and Social Sciences, Inland Norway University of Applied Sciences, PB 400, N-2418 Elverum, Norway
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13
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Zou J, Duan Y, Wang Y, Liu A, Chen Y, Guo D, Guo W, Li S, Su Z, Wu Y, Lu H, Deng Y, Zhu J, Li F. Phellopterin cream exerts an anti-inflammatory effect that facilitates diabetes-associated cutaneous wound healing via SIRT1. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 107:154447. [PMID: 36150345 DOI: 10.1016/j.phymed.2022.154447] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 08/14/2022] [Accepted: 09/05/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Diabetic ulcers, which are characterized by chronic nonhealing wounds with a long-lasting inflammatory state, are a typical symptom in individuals with diabetes, and there is still no effective treatment for these lesions. Angelica dahurica plays a critical role in inflammatory diseases. Among numerous monomeric compounds, phellopterin has been shown to have anti-inflammatory properties. PURPOSE To research the bioactive constituents in Angelica dahurica and their mechanism of action in treating diabetic ulcers. STUDY DESIGN Chemical research of Angelica dahurica led to the identification of a new coumarin, dahuricoumarin A (1), along with seven known compounds (2 - 8). All compounds were tested for anti-inflammatory activity, and phellopterin, compound (3), significantly decreased the expression of intercellular cell adhesion molecule-1 (ICAM-1), a representative indicator of inflammation. Phellopterin can also increase SIRT1 protein, a key target for inflammation. In our research, we confirmed the anti-inflammatory effects of phellopterin on diabetic ulcers and explored the underlying mechanism of action. METHODS The expression of IFN-γ, SIRT1, and ICAM-1 in human diabetic ulcer tissues was studied using immunohistochemistry. Streptozotocin was used to induce a diabetic model in C57BL/6J mice, and ulcers were surgically introduced. After phellopterin treatment, the skin lesions of diabetic mice were observed over a period of time. The protein and mRNA expression levels of SIRT1 and ICAM-1 were measured using H&E, qRT-PCR and immunohistochemical staining. A HaCaT cell inflammatory model was induced by IFN-γ. Using a lentiviral packaging technique, MTT assay, and Western blotting, the effect of phellopterin on the proliferation of HaCaT cells and the expression of ICAM-1 was evaluated under normal and SIRT1 knockdown conditions. RESULTS High levels of ICAM-1 and IFN-γ were identified, but low levels of SIRT1 were found in human diabetic ulcer tissues, and phellopterin showed therapeutic benefits in the healing process by attenuating chronic inflammation and promoting re-epithelialization, along with SIRT1 upregulation and ICAM-1 downregulation. However, inhibiting SIRT1 reversed its proliferative and anti-inflammatory effects. CONCLUSION In vitro and in vivo, phellopterin exerts anti-inflammatory and proliferative effects that promote diabetic wound healing, and the potential mechanism depends on SIRT1.
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Affiliation(s)
- Jialing Zou
- Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Yanjuan Duan
- Department of Dermatology, Seventh People's Hospital of Shanghai University of TCM, Shanghai 200137, China
| | - Yi Wang
- Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Aijun Liu
- Department of Pharmacy Research, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Yuanran Chen
- Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Dongjie Guo
- Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Wanjun Guo
- Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Shuang Li
- Department of Anorectal Surgery, Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing 100000, China
| | - Zhou Su
- School of Medicine, Chengdu University, Chengdu 610000, China
| | - Yang Wu
- Department of Neurology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Hanzhi Lu
- Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Yu Deng
- School of Medicine, Chengdu University, Chengdu 610000, China.
| | - Jianyong Zhu
- Department of Pharmacy Research, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China.
| | - Fulun Li
- Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China.
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Dong K, Jiang Z, Zhang J, Qin H, Chen J, Chen Q. The role of SIRT1 in the process of Toxoplasma gondii infection of RAW 264.7 macrophages. Front Microbiol 2022; 13:1017696. [PMID: 36466662 PMCID: PMC9713941 DOI: 10.3389/fmicb.2022.1017696] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 10/18/2022] [Indexed: 08/24/2023] Open
Abstract
Toxoplasma gondii is an opportunistic pathogenic protozoan that can infect almost all kinds of warm-blooded animals, including humans. T. gondii can evade the host's immune response, a process known as immune evasion. Our main objective was to evaluate the role played by Sirtuin1 (SIRT1) [one of the sirtuins (SIRTs) that are a family of nicotinamide adenine dinucleotide (NAD)-dependent histone deacetylases (HDACs)] in the T. gondii infection of RAW264.7 macrophages. In this study, we evaluated and observed alterations in the activity, expression, and localization of SIRT1 and assessed its involvement in the CD154/IFN-γ (CD40 ligand/interferon gamma) killing pathway and in autophagy during T. gondii infection. The inhibition of SIRT1 in host cells effectively reduced the number of intracellular tachyzoites, and the mechanism behind this effect might be the upregulation of IRGM1 [murine ortholog of IRGM (immunity-related GTPase family M)] and the initiation of autophagy. To the best of our knowledge, our study is the first to prove that T. gondii infection upregulates SIRT1 in RAW264.7 cells and that the inhibition of SIRT1 reduces the number of intracellular tachyzoites. Moreover, the upregulation of IRGM1 and the activation of autophagy may contribute to the intracellular inhibition of T. gondii caused by SIRT1 inhibition.
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Affiliation(s)
- Kai Dong
- Department of Parasitology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Ziyang Jiang
- Department of Parasitology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Jianhui Zhang
- Department of Parasitology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Hanxiao Qin
- Department of Parasitology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Jianping Chen
- Department of Parasitology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Chengdu, China
| | - Qiwei Chen
- Department of Parasitology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
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15
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Yang Y, Liu Y, Wang Y, Chao Y, Zhang J, Jia Y, Tie J, Hu D. Regulation of SIRT1 and Its Roles in Inflammation. Front Immunol 2022; 13:831168. [PMID: 35359990 PMCID: PMC8962665 DOI: 10.3389/fimmu.2022.831168] [Citation(s) in RCA: 148] [Impact Index Per Article: 74.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 02/15/2022] [Indexed: 12/28/2022] Open
Abstract
The silent information regulator sirtuin 1 (SIRT1) protein, a highly conserved NAD+-dependent deacetylase belonging to the sirtuin family, is a post-translational regulator that plays a role in modulating inflammation. SIRT1 affects multiple biological processes by deacetylating a variety of proteins including histones and non-histone proteins. Recent studies have revealed intimate links between SIRT1 and inflammation, while alterations to SIRT1 expression and activity have been linked to inflammatory diseases. In this review, we summarize the mechanisms that regulate SIRT1 expression, including upstream activators and suppressors that operate on the transcriptional and post-transcriptional levels. We also summarize factors that influence SIRT1 activity including the NAD+/NADH ratio, SIRT1 binding partners, and post-translational modifications. Furthermore, we underscore the role of SIRT1 in the development of inflammation by commenting on the proteins that are targeted for deacetylation by SIRT1. Finally, we highlight the potential for SIRT1-based therapeutics for inflammatory diseases.
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Affiliation(s)
- Yunshu Yang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an, China
| | - Yang Liu
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an, China
| | - Yunwei Wang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an, China
| | - Yongyi Chao
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an, China
| | - Jinxin Zhang
- Department of Emergency, Xijing Hospital, Fourth Military Medical University, Xi’an, China
| | - Yanhui Jia
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an, China
| | - Jun Tie
- State Key Laboratory of Cancer Biology and Xijing Hospital of Digestive Diseases, Xijing Hospital, Fourth Military Medical University, Xi’an, China
- *Correspondence: Dahai Hu, ; Jun Tie,
| | - Dahai Hu
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an, China
- *Correspondence: Dahai Hu, ; Jun Tie,
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Wang Z, Li H, Fang J, Wang X, Dai S, Cao W, Guo Y, Li Z, Zhu H. Comparative Analysis of the Therapeutic Effects of Amniotic Membrane and Umbilical Cord Derived Mesenchymal Stem Cells for the Treatment of Type 2 Diabetes. Stem Cell Rev Rep 2022; 18:1193-1206. [PMID: 35015214 PMCID: PMC8749914 DOI: 10.1007/s12015-021-10320-w] [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] [Accepted: 12/16/2021] [Indexed: 11/09/2022]
Abstract
Type 2 diabetes mellitus (T2DM), one of the most common carbohydrate metabolism disorders, is characterized by chronic hyperglycemia and insulin resistance (IR), and has become an urgent global health challenge. Mesenchymal stem cells (MSCs) originating from perinatal tissues such as umbilical cord (UC) and amniotic membrane (AM) serve as ideal candidates for the treatment of T2DM due to their great advantages in terms of abundant source, proliferation capacity, immunomodulation and plasticity for insulin-producing cell differentiation. However, the optimally perinatal MSC source to treat T2DM remains elusive. This study aims to compare the therapeutic efficacy of MSCs derived from AM and UC (AMMSCs and UCMSCs) of the same donor in the alleviation of T2DM symptoms and explore the underlying mechanisms. Our results showed that AMMSCs and UCMSCs displayed indistinguishable immunophenotype and multi-lineage differentiation potential, but UCMSCs had a much higher expansion capacity than AMMSCs. Moreover, we uncovered that single-dose intravenous injection of either AMMSCs or UCMSCs could comparably reduce hyperglycemia and improve IR in T2DM db/db mice. Mechanistic investigations revealed that either AMMSC or UCMSC infusion could greatly improve glycolipid metabolism in the liver of db/db mice, which was evidenced by decreased liver to body weight ratio, reduced lipid accumulation, upregulated glycogen synthesis, and increased Akt phosphorylation. Taken together, these data indicate that the same donor-derived AMMSCs and UCMSCs possessed comparable effects and shared a similar hepatoprotective mechanism on the alleviation of T2DM symptoms.
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Affiliation(s)
- Zhifeng Wang
- Sinoneural Cell Engineering Group Holdings Co., Ltd, Shanghai, 201100, China. .,Translational Medical Center for Stem Cell Therapy and Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China.
| | - Haisen Li
- Sinoneural Cell Engineering Group Holdings Co., Ltd, Shanghai, 201100, China
| | - Jingmeng Fang
- Sinoneural Cell Engineering Group Holdings Co., Ltd, Shanghai, 201100, China
| | - Xiaoyu Wang
- Sinoneural Cell Engineering Group Holdings Co., Ltd, Shanghai, 201100, China
| | - Shuhang Dai
- Sinoneural Cell Engineering Group Holdings Co., Ltd, Shanghai, 201100, China
| | - Wei Cao
- Sinoneural Cell Engineering Group Holdings Co., Ltd, Shanghai, 201100, China
| | - Yinhong Guo
- Sinoneural Cell Engineering Group Holdings Co., Ltd, Shanghai, 201100, China
| | - Zhe Li
- Sinoneural Cell Engineering Group Holdings Co., Ltd, Shanghai, 201100, China
| | - Hao Zhu
- Sinoneural Cell Engineering Group Holdings Co., Ltd, Shanghai, 201100, China.
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Biomarkers in metabolic syndrome. Adv Clin Chem 2022; 111:101-156. [DOI: 10.1016/bs.acc.2022.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Chen R, Lv C, Zhao Y, Gu W, Zhang L, Shi B, Tou J. Expression and Possible Role of Silent Mating Type Information Regulation 2 Homolog 1 in Post-necrotizing Enterocolitis Stricture in vivo and in vitro. Front Pediatr 2022; 10:836128. [PMID: 35958178 PMCID: PMC9357903 DOI: 10.3389/fped.2022.836128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 06/20/2022] [Indexed: 12/04/2022] Open
Abstract
PURPOSE To investigate the expression and possible role of Sirtuin1 or Silent mating-type information regulation 2 homolog-1 (SIRT1) in post-necrotizing enterocolitis stricture. MATERIALS AND METHODS The expression characteristics of SIRT1 and TGF-β1 in post-necrotizing enterocolitis stricture were detected by immunohistochemistry. The siRNA-SIRT1 was used to inhibit the expression of SIRT1 in intestinal epithelial cells-6 (IEC-6), and qRT-PCR, WB, and ELISA were utilized to detect the changes of Transforming growth factor-β1 (TGF-β1), nuclear factor (NF)-κB, tumor necrosis factor-α (TNF-α), tight junction protein-1 (ZO-1), and vascular endothelial growth factor (VEGF) expressions. The IEC-6 cell proliferation and migration ability were tested via CCK8 kit and Transwell test. The expression of E-cadherin and Vimentin in cells was detected by immunofluorescence. RESULTS The CRP, IL-6, IL-10, and IFN-γ in the serum of Necrotizing enterocolitis (NEC) intestinal stenosis patients were significantly higher than the reference values. The SIRT1 protein was under-expressed and the TGF-β1 protein was overexpressed in NEC intestinal stenosis tissue. And the expression of SIRT1 was negatively correlated with TGF-β1. At the time of diagnosis of NEC, the expression of SIRT1 decreased in children with respiratory distress syndrome and CRP level increased. After inhibiting the expression of SIRT1 in IEC6 cells, the expression levels of TGF-β1, Smad3, and NF-κB were decreased, and the expression of ZO-1 was also decreased. The proliferation and migration ability of IEC6 cells was decreased significantly, and the expression of E-cadherin and Vimentin proteins in IEC6 cells did not change significantly. CONCLUSION Promotion of intestinal fibrosis by inflammation may be the mechanism of post-necrotizing enterocolitis stricture. SIRT1 may be a protective protein of NEC. The probable mechanism is that SIRT1 can regulate intestinal fibrosis and can protect the intestinal mucosal barrier function to participate in the process of post-necrotizing enterocolitis stricture.
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Affiliation(s)
- Rui Chen
- Department of Neonatal Surgery, Children's Hospital Affiliated to Medical College of Zhejiang University, National Center for Clinical Medicine of Children's Health and Disease, Hangzhou, China
| | - Chengjie Lv
- Department of Neonatal Surgery, Children's Hospital Affiliated to Medical College of Zhejiang University, National Center for Clinical Medicine of Children's Health and Disease, Hangzhou, China
| | - Yun Zhao
- Department of Pathology, Children's Hospital Affiliated to Medical College of Zhejiang University, National Center for Clinical Medicine of Children's Health and Disease, Hangzhou, China
| | - Weizhong Gu
- Department of Pathology, Children's Hospital Affiliated to Medical College of Zhejiang University, National Center for Clinical Medicine of Children's Health and Disease, Hangzhou, China
| | - Luyin Zhang
- Department of Pediatric Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Bo Shi
- Department of Neonatal Surgery, Children's Hospital Affiliated to Medical College of Zhejiang University, National Center for Clinical Medicine of Children's Health and Disease, Hangzhou, China
| | - Jingfa Tou
- Department of Neonatal Surgery, Children's Hospital Affiliated to Medical College of Zhejiang University, National Center for Clinical Medicine of Children's Health and Disease, Hangzhou, China
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Wang DD, Wu XY, Dong JY, Cheng XP, Gu SF, Olatunji OJ, Li Y, Zuo J. Qing-Luo-Yin Alleviated Experimental Arthritis in Rats by Disrupting Immune Feedback Between Inflammatory T Cells and Monocytes: Key Evidences from Its Effects on Immune Cell Phenotypes. J Inflamm Res 2021; 14:7467-7486. [PMID: 35002280 PMCID: PMC8723919 DOI: 10.2147/jir.s346365] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 12/17/2021] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Qing-Luo-Yin (QLY) is an anti-rheumatic herbal formula. Despite the well-investigated therapeutic efficacy of QLY, its immune regulatory properties are largely unknown. CD4+ T cells and monocytes are two key parameters in rheumatoid arthritis (RA). This study investigated the changes in these cells in QLY-treated RA animal models. MATERIALS AND METHODS RA models were induced in male SD rats and were orally treated with QLY. Dynamic metabolic changes in collagen-induced arthritis (CIA) rats were monitored by 1H NMR approach. The immunity profiles of CIA and adjuvant-induced arthritis (AIA) rats were evaluated using immunohistochemical, PCR, ELISA, cytokine chip, flow cytometry, and immunofluorescence experiments. The bioactive components in QLY were identified by bioinformatic-guided LC-MS analyses. The compounds with high abundance in QLY decoction and easily absorbed were taken as key anti-rheumatic components and used to treat blood-derived immune cells using in vitro experiments. RESULTS The results indicated that QLY decreased Th17 cells frequency and T cells-released IL-6, IL-17 and GM-CSF in CIA rats, which was attributed to the impaired lymphocyte maturation and altered differentiation. QLY inhibited lactic acid production and inflammatory polarization in the monocytes during the peak period of AIA and CIA. AIA monocytes elicited significant increase in Th17 cells counts, IL-6 and IL-1β secretion in co-cultured splenocytes, which was abrogated by QLY. QLY-containing serum suppressed the phosphorylation of JNK and p65 in AIA lymphocyte-stimulated normal monocytes and consequently inhibited iNOS and IL-1β expression as well as IL-6 and IL-1β production. Matrine, sinomenine and sophocarpine were identified as major bioactive compounds in QLY. These identified compounds effectively inhibited the development of inflammatory T cells using concentrations detected in QLY-treated rats. At higher concentrations (20-fold increase), the chemical stimuli significantly suppressed the production of IL-1β in AIA monocytes by inhibiting JNK and p65 pathways. CONCLUSION By targeting inflammatory T cells and monocytes as well as disrupting their interplay, QLY improved immune environment in RA models especially during the active stages of disease.
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Affiliation(s)
- Dan-Dan Wang
- Xin’an Medicine Research Center, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu, 241000, People’s Republic of China
- Research Center of Integration of Traditional Chinese and Western Medicine, Wannan Medical College, Wuhu, 241000, People’s Republic of China
| | - Xin-Yue Wu
- Department of Electronic Science, Xiamen University, Xiamen, 361005, People’s Republic of China
| | - Ji-Yang Dong
- Department of Electronic Science, Xiamen University, Xiamen, 361005, People’s Republic of China
| | - Xiu-Ping Cheng
- Xin’an Medicine Research Center, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu, 241000, People’s Republic of China
- Research Center of Integration of Traditional Chinese and Western Medicine, Wannan Medical College, Wuhu, 241000, People’s Republic of China
| | - Shao-Fei Gu
- Xin’an Medicine Research Center, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu, 241000, People’s Republic of China
- Research Center of Integration of Traditional Chinese and Western Medicine, Wannan Medical College, Wuhu, 241000, People’s Republic of China
| | - Opeyemi Joshua Olatunji
- Faculty of Traditional Thai Medicine, Prince of Songkla University, Hat Yai, 90110, Thailand
| | - Yan Li
- Xin’an Medicine Research Center, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu, 241000, People’s Republic of China
- Research Center of Integration of Traditional Chinese and Western Medicine, Wannan Medical College, Wuhu, 241000, People’s Republic of China
| | - Jian Zuo
- Xin’an Medicine Research Center, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu, 241000, People’s Republic of China
- Key Laboratory of Non-Coding RNA Transformation Research of Anhui Higher Education Institution, Wannan Medical College, Wuhu, 241000, People’s Republic of China
- Anhui Provincial Engineering Laboratory for Screening and Re-Evaluation of Active Compounds of Herbal Medicines in Southern Anhui, Wuhu, 241000, People’s Republic of China
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20
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Sirtuins as Metabolic Regulators of Immune Cells Phenotype and Function. Genes (Basel) 2021; 12:genes12111698. [PMID: 34828304 PMCID: PMC8618532 DOI: 10.3390/genes12111698] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/19/2021] [Accepted: 10/25/2021] [Indexed: 12/28/2022] Open
Abstract
Beyond its role on the conversion of nutrients into energy and biomass, cellular metabolism is actively involved in the control of many physiological processes. Among these, it is becoming increasingly evident that specific metabolic pathways are associated with the phenotype of several immune cell types and, importantly, are crucial in controlling their differentiation, proliferation, and effector functions, thus shaping the immune response against pathogens and tumors. In this context, data generated over the last decade have uncovered mammalian sirtuins as important regulators of cellular metabolism, immune cell function, and cancer. Here, we summarize our current knowledge on the roles of this family of protein deacylases on the metabolic control of immune cells and their implications on immune-related diseases and cancer.
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21
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Bodhale N, Ohms M, Ferreira C, Mesquita I, Mukherjee A, André S, Sarkar A, Estaquier J, Laskay T, Saha B, Silvestre R. Cytokines and metabolic regulation: A framework of bidirectional influences affecting Leishmania infection. Cytokine 2020; 147:155267. [PMID: 32917471 DOI: 10.1016/j.cyto.2020.155267] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 08/14/2020] [Accepted: 08/24/2020] [Indexed: 12/12/2022]
Abstract
Leishmania, a protozoan parasite inflicting the complex of diseases called Leishmaniases, resides and replicates as amastigotes within mammalian macrophages. As macrophages are metabolically highly active and can generate free radicals that can destroy this parasite, Leishmania also devise strategies to modulate the host cell metabolism. However, the metabolic changes can also be influenced by the anti-leishmanial immune response mediated by cytokines. This bidirectional, dynamic and complex metabolic coupling established between Leishmania and its host is the result of a long co-evolutionary process. Due to the continuous alterations imposed by the host microenvironment, such metabolic coupling continues to be dynamically regulated. The constant pursuit and competition for nutrients in the host-Leishmania duet alter the host metabolic pathways with major consequences for its nutritional reserves, eventually affecting the phenotype and functionality of the host cell. Altered phenotype and functions of macrophages are particularly relevant to immune cells, as perturbed metabolic fluxes can crucially affect the activation, differentiation, and functions of host immune cells. All these changes can deterministically direct the outcome of an infection. Cytokines and metabolic fluxes can bidirectionally influence each other through molecular sensors and regulators to dictate the final infection outcome. Our studies along with those from others have now identified the metabolic nodes that can be targeted for therapy.
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Affiliation(s)
- Neelam Bodhale
- National Centre for Cell Science, 411007 Pune, India; Jagadis Bose National Science Talent Search (JBNSTS), Kolkata 700107 India
| | - Mareike Ohms
- Department of Infectious Diseases and Microbiology, University of Lübeck, Lübeck 23538, Germany
| | - Carolina Ferreira
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Inês Mesquita
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | | | - Sónia André
- INSERM U1124, Université Paris Descartes, 75006 Paris, France
| | - Arup Sarkar
- Trident Academy of Creative Technology, Bhubaneswar, Odisha 751024, India
| | - Jérôme Estaquier
- INSERM U1124, Université Paris Descartes, 75006 Paris, France; Centre de Recherche du CHU de Québec - Université Laval, Québec, Canada
| | - Tamás Laskay
- Department of Infectious Diseases and Microbiology, University of Lübeck, Lübeck 23538, Germany
| | - Bhaskar Saha
- National Centre for Cell Science, 411007 Pune, India; Trident Academy of Creative Technology, Bhubaneswar, Odisha 751024, India
| | - Ricardo Silvestre
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal.
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22
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de Gregorio E, Colell A, Morales A, Marí M. Relevance of SIRT1-NF-κB Axis as Therapeutic Target to Ameliorate Inflammation in Liver Disease. Int J Mol Sci 2020; 21:E3858. [PMID: 32485811 PMCID: PMC7312021 DOI: 10.3390/ijms21113858] [Citation(s) in RCA: 97] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/26/2020] [Accepted: 05/27/2020] [Indexed: 12/12/2022] Open
Abstract
Inflammation is an adaptive response in pursuit of homeostasis reestablishment triggered by harmful conditions or stimuli, such as an infection or tissue damage. Liver diseases cause approximately 2 million deaths per year worldwide and hepatic inflammation is a common factor to all of them, being the main driver of hepatic tissue damage and causing progression from non-alcoholic fatty liver disease (NAFLD) to non-alcoholic steatohepatitis (NASH), cirrhosis and, ultimately, hepatocellular carcinoma (HCC). The metabolic sensor SIRT1, a class III histone deacetylase with strong expression in metabolic tissues such as the liver, and transcription factor NF-κB, a master regulator of inflammatory response, show an antagonistic relationship in controlling inflammation. For this reason, SIRT1 targeting is emerging as a potential strategy to improve different metabolic and/or inflammatory pathologies. In this review, we explore diverse upstream regulators and some natural/synthetic activators of SIRT1 as possible therapeutic treatment for liver diseases.
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Affiliation(s)
- Estefanía de Gregorio
- Department of Cell Death and Proliferation, IIBB-CSIC, IDIBAPS, 08036 Barcelona, Spain;
| | - Anna Colell
- Department of Cell Death and Proliferation, IIBB-CSIC, IDIBAPS, Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), 08036 Barcelona, Spain;
| | - Albert Morales
- Department of Cell Death and Proliferation, IIBB-CSIC, Barcelona Clinic Liver Cancer Group, Liver Unit, Hospital Clínic of Barcelona, University of Barcelona, CIBEREHD, 08036 Barcelona, Spain;
| | - Montserrat Marí
- Department of Cell Death and Proliferation, IIBB-CSIC, IDIBAPS, 08036 Barcelona, Spain;
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23
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Rubin LH, Xu Y, Norris PJ, Wang X, Dastgheyb R, Fitzgerald KC, Keating SM, Kaplan RC, Maki PM, Anastos K, Springer G, Benning L, Kassaye S, Gustafson DR, Valcour VG, Williams DW. Early Inflammatory Signatures Predict Subsequent Cognition in Long-Term Virally Suppressed Women With HIV. Front Integr Neurosci 2020; 14:20. [PMID: 32390808 PMCID: PMC7193823 DOI: 10.3389/fnint.2020.00020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 03/23/2020] [Indexed: 12/16/2022] Open
Abstract
Immunologic function is an important determinant of cognition. Here we examined the contribution of early immune signatures to cognitive performance among HIV-infected, virally suppressed women (HIV+VS) and in HIV-uninfected (HIV-) women. Specifically, we measured serum inflammatory markers, developed combinatory immune signatures, and evaluated their associations with cognition. Forty-nine HIV+VS women in the Women’s Interagency HIV Study (WIHS) who achieved viral suppression shortly after effective antiretroviral therapy (ART) initiation, and 56 matched HIV− women were selected. Forty-two serum inflammatory markers were measured within 2 years of effective ART initiation for HIV+VS women, and at an initial timepoint for HIV− women. The same inflammatory markers were also measured approximately 1, 7, and 12 years later for all women. Of the 105 women with complete immune data, 83 (34 HIV+VS, 49 HIV−) also had cognitive data available 12 years later at ≥1 time points (median = 3.1). We searched for combinatory immune signatures by adapting a dynamic matrix factorization analytic method that builds upon Tucker decomposition followed by Ingenuity® Pathway Analysis to facilitate data interpretation. Seven combinatory immune signatures emerged based on the Frobenius residual. Three signatures were common between HIV+VS and HIV− women, while four signatures were unique. These inflammatory signatures predicted subsequent cognitive performance in both groups using mixed-effects modeling, but more domain-specific associations were significant in HIV+VS than HIV− women. Leukocyte influx into brain was a major contributor to cognitive function in HIV+VS women, while T cell exhaustion, inflammatory response indicative of depressive/psychiatric disorders, microglial activity, and cytokine signaling predicted both global and domain-specific performance for HIV− women. Our findings suggest that immune signatures may be useful diagnostic, prognostic, and immunotherapeutic targets predictive of subsequent cognitive performance. Importantly, they also provide insight into common and distinct inflammatory mechanisms underlying cognition in HIV− and HIV+VS women.
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Affiliation(s)
- Leah H Rubin
- Department of Neurology, Johns Hopkins University, Baltimore, MD, United States.,Department of Psychiatry, Johns Hopkins University, Baltimore, MD, United States.,Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, United States
| | - Yanxun Xu
- Department of Applied Mathematics and Statistics, Johns Hopkins University, Baltimore, MD, United States.,Division of Biostatistics and Bioinformatics, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, United States
| | - Philip J Norris
- Department of Laboratory Medicine, Vitalant Research Institute, University of California, San Francisco, San Francisco, CA, United States
| | - Xuzhi Wang
- Department of Applied Mathematics and Statistics, Johns Hopkins University, Baltimore, MD, United States
| | - Raha Dastgheyb
- Department of Neurology, Johns Hopkins University, Baltimore, MD, United States
| | | | - Sheila M Keating
- Department of Laboratory Medicine, Vitalant Research Institute, University of California, San Francisco, San Francisco, CA, United States
| | - Robert C Kaplan
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Pauline M Maki
- Department of Psychiatry, University of Illinois at Chicago, Chicago, IL, United States.,Department of Psychology, University of Illinois at Chicago, Chicago, IL, United States
| | - Kathryn Anastos
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, United States.,Department of General Internal Medicine, Albert Einstein College of Medicine, Bronx, NY, United States.,Department of Obstetrics and Gynecology and Women's Health, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Gayle Springer
- Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, United States
| | - Lorie Benning
- Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, United States
| | - Seble Kassaye
- Department of Medicine, Georgetown University, Washington, DC, United States
| | - Deborah R Gustafson
- Department of Neurology, SUNY Downstate Health Sciences University, Brooklyn, NY, United States
| | - Victor G Valcour
- Department of Neurology, University of California, San Francisco, San Francisco, CA, United States
| | - Dionna W Williams
- Department of Molecular and Comparative Pathobiology, Johns Hopkins University, Baltimore, MD, United States.,Division of Clinical Pharmacology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
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24
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Gan H, Shen T, Chupp DP, Taylor JR, Sanchez HN, Li X, Xu Z, Zan H, Casali P. B cell Sirt1 deacetylates histone and non-histone proteins for epigenetic modulation of AID expression and the antibody response. SCIENCE ADVANCES 2020; 6:eaay2793. [PMID: 32270032 PMCID: PMC7112761 DOI: 10.1126/sciadv.aay2793] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 01/09/2020] [Indexed: 05/27/2023]
Abstract
Activation-induced cytidine deaminase (AID) mediates immunoglobulin class switch DNA recombination (CSR) and somatic hypermutation (SHM), critical processes for maturation of the antibody response. Epigenetic factors, such as histone deacetylases (HDACs), would underpin B cell differentiation stage-specific AID expression. Here, we showed that NAD+-dependent class III HDAC sirtuin 1 (Sirt1) is highly expressed in resting B cells and down-regulated by stimuli inducing AID. B cell Sirt1 down-regulation, deprivation of NAD+ cofactor, or genetic Sirt1 deletion reduced deacetylation of Aicda promoter histones, Dnmt1, and nuclear factor-κB (NF-κB) p65 and increased AID expression. This promoted class-switched and hypermutated T-dependent and T-independent antibody responses or led to generation of autoantibodies. Genetic Sirt1 overexpression, Sirt1 boost by NAD+, or allosteric Sirt1 enhancement by SRT1720 repressed AID expression and CSR/SHM. By deacetylating histone and nonhistone proteins (Dnmt1 and NF-κB p65), Sirt1 transduces metabolic cues into epigenetic changes to play an important B cell-intrinsic role in modulating antibody and autoantibody responses.
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Affiliation(s)
| | | | - Daniel P. Chupp
- Department of Microbiology, Immunology and Molecular Genetics, University of Texas Long School of Medicine, UT Health Science Center, San Antonio, TX 78229, USA
| | - Julia R. Taylor
- Department of Microbiology, Immunology and Molecular Genetics, University of Texas Long School of Medicine, UT Health Science Center, San Antonio, TX 78229, USA
| | - Helia N. Sanchez
- Department of Microbiology, Immunology and Molecular Genetics, University of Texas Long School of Medicine, UT Health Science Center, San Antonio, TX 78229, USA
| | - Xin Li
- Department of Microbiology, Immunology and Molecular Genetics, University of Texas Long School of Medicine, UT Health Science Center, San Antonio, TX 78229, USA
| | - Zhenming Xu
- Department of Microbiology, Immunology and Molecular Genetics, University of Texas Long School of Medicine, UT Health Science Center, San Antonio, TX 78229, USA
| | - Hong Zan
- Department of Microbiology, Immunology and Molecular Genetics, University of Texas Long School of Medicine, UT Health Science Center, San Antonio, TX 78229, USA
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25
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Liu X, Zhang Y, Liang H, Xu Y. Overexpression of microRNA-216a-3p Accelerates the Inflammatory Response in Cardiomyocytes in Type 2 Diabetes Mellitus by Targeting IFN-α2. Front Endocrinol (Lausanne) 2020; 11:522340. [PMID: 33329376 PMCID: PMC7729074 DOI: 10.3389/fendo.2020.522340] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Accepted: 09/03/2020] [Indexed: 11/22/2022] Open
Abstract
Background: Type 2 diabetes mellitus (T2DM) is a chronic, hyperglycemia-associated, metabolic disorder. Heart disease is a major complication of T2DM. The present study aimed to explore the effects of miR-216a-3p on cardiomyocyte proliferation, apoptosis, and inflammation in T2DM through the Toll-like receptor (TLR) pathway involving interferon-α2 (IFN-α2) mediation. Methods: T2DM was induced in rats by a high-fat diet, in combination with an intraperitoneal injection of low-dose streptozotocin. ELISAs were conducted to measure inflammatory-related factors in serum. Next, isolated cardiomyocytes were used in loss- and gain-of-function experiments, followed by MTT and flow cytometry assays, conducted to evaluate cell proliferation, cell cycle, and apoptosis. Results: Our results revealed an increase in the inflammatory response in T2DM rat models, accompanied by significantly increased expression of miR-216a-3p and TLR pathway-related genes. However, a decrease in the expression of IFN-α2 was observed. Moreover, the presence of an miR-216a-3p inhibitor and si-IFN-α2 increased the expression of TLR pathway-related genes and cell apoptosis, whereas cell proliferation was significantly decreased in the cardiomyocytes. Conclusion: We found that in T2DM, miR-216a-3p inhibited the proliferation and enhanced the apoptosis of cardiomyocytes and generated an inflammatory response through activation of the TLR pathway and targeting of IFN-α2.
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Affiliation(s)
- Xiaomeng Liu
- The 2nd Ward, Department of Endocrinology and Metabolism, Linyi People's Hospital, Linyi, China
| | - Yusong Zhang
- Imaging Center, Linyi People's Hospital, Linyi, China
| | - Hongwei Liang
- Department of Health Care, Linyi People's Hospital, Linyi, China
| | - Yanchao Xu
- The 2nd Ward, Department of Endocrinology and Metabolism, Linyi People's Hospital, Linyi, China
- *Correspondence: Yanchao Xu
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26
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Song SB, Park JS, Chung GJ, Lee IH, Hwang ES. Diverse therapeutic efficacies and more diverse mechanisms of nicotinamide. Metabolomics 2019; 15:137. [PMID: 31587111 DOI: 10.1007/s11306-019-1604-4] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 09/30/2019] [Indexed: 11/30/2022]
Abstract
BACKGROUND Nicotinamide (NAM) is a form of vitamin B3 that, when administered at near-gram doses, has been shown or suggested to be therapeutically effective against many diseases and conditions. The target conditions are incredibly diverse ranging from skin disorders such as bullous pemphigoid to schizophrenia and depression and even AIDS. Similar diversity is expected for the underlying mechanisms. In a large portion of the conditions, NAM conversion to nicotinamide adenine dinucleotide (NAD+) may be a major factor in its efficacy. The augmentation of cellular NAD+ level not only modulates mitochondrial production of ATP and superoxide, but also activates many enzymes. Activated sirtuin proteins, a family of NAD+-dependent deacetylases, play important roles in many of NAM's effects such as an increase in mitochondrial quality and cell viability countering neuronal damages and metabolic diseases. Meanwhile, certain observed effects are mediated by NAM itself. However, our understanding on the mechanisms of NAM's effects is limited to those involving certain key proteins and may even be inaccurate in some proposed cases. AIM OF REVIEW This review details the conditions that NAM has been shown to or is expected to effectively treat in humans and animals and evaluates the proposed underlying molecular mechanisms, with the intention of promoting wider, safe therapeutic application of NAM. KEY SCIENTIFIC CONCEPTS OF REVIEW NAM, by itself or through altering metabolic balance of NAD+ and tryptophan, modulates mitochondrial function and activities of many molecules and thereby positively affects cell viability and metabolic functions. And, NAM administration appears to be quite safe with limited possibility of side effects which are related to NAM's metabolites.
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Affiliation(s)
- Seon Beom Song
- Department of Life Science, University of Seoul, Dongdaemun-gu, Seoulsiripdae-ro 163, Seoul, Republic of Korea
| | - Jin Sung Park
- Department of Life Science, University of Seoul, Dongdaemun-gu, Seoulsiripdae-ro 163, Seoul, Republic of Korea
| | - Gu June Chung
- Department of Life Science, University of Seoul, Dongdaemun-gu, Seoulsiripdae-ro 163, Seoul, Republic of Korea
| | - In Hye Lee
- Department of Life Science, Ewha Womans University, Ewhayeodae-gil 52, Seoul, Republic of Korea
| | - Eun Seong Hwang
- Department of Life Science, University of Seoul, Dongdaemun-gu, Seoulsiripdae-ro 163, Seoul, Republic of Korea.
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27
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Wu X, Fan Z, Chen M, Chen Y, Rong D, Cui Z, Yuan Y, Zhuo L, Xu Y. Forkhead transcription factor FOXO3a mediates interferon-γ-induced MHC II transcription in macrophages. Immunology 2019; 158:304-313. [PMID: 31509237 DOI: 10.1111/imm.13116] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 08/23/2019] [Accepted: 09/03/2019] [Indexed: 12/23/2022] Open
Abstract
Macrophages are professional antigen-presenting cells relying on the expression of class II major histocompatibility complex (MHC II) genes. Interferon-γ (IFN-γ) activates MHC II transcription via the assembly of an enhanceosome centred on class II trans-activator (CIITA). In the present study, we investigated the role of the forkhead transcription factor FOXO3a in IFN- γ-induced MHC II transcription in macrophages. Knockdown of FOXO3a, but not FOXO1 or FOXO4, diminished IFN-γ-induced MHC II expression in RAW cells. On the contrary, over-expression of FOXO3a, but neither FOXO1 nor FOXO4, enhanced CIITA-mediated trans-activation of the MHC II promoter. IFN-γ treatment promoted the recruitment of FOXO3a to the MHC II promoter. Co-immunoprecipitation and RE-ChIP assays showed that FOXO3a was a component of the MHC II enhanceosome forming interactions with CIITA, RFX5, RFXB and RFXAP. FOXO3a contributed to MHC II transcription by altering histone modifications surrounding the MHC II promoter. Of interest, FOXO3a was recruited to the type IV CIITA promoter and directly activated CIITA transcription by interacting with signal transducer of activation and transcription 1 in response to IFN-γ stimulation. In conclusion, our data unveil a novel role for FOXO3a in the regulation of MHC II transcription in macrophages.
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Affiliation(s)
- Xiaoyan Wu
- The Laboratory Centre for Basic Medical Sciences, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, China.,Institute of Biomedical Research, Liaocheng University, Liaocheng, China.,Department of Pathophysiology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, China
| | - Zhiwen Fan
- Department of Pathology, Nanjing Drum Tower Hospital Affiliated with Nanjing University School of Medicine, Nanjing, China
| | - Ming Chen
- The Laboratory Centre for Basic Medical Sciences, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, China
| | - Yi Chen
- The Laboratory Centre for Basic Medical Sciences, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, China
| | - Danyan Rong
- The Laboratory Centre for Basic Medical Sciences, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, China
| | - Zhiwei Cui
- The Laboratory Centre for Basic Medical Sciences, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, China
| | - Yibiao Yuan
- The Laboratory Centre for Basic Medical Sciences, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, China
| | - Lili Zhuo
- Department of Geriatrics, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yong Xu
- Institute of Biomedical Research, Liaocheng University, Liaocheng, China.,Department of Pathophysiology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, China
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M. Sorour S, A. Elnoury H. Forskolin Modulate Silent Information Regulator 1 (SIRT1) gene Expression and Halts Experimentally-Induced Acute Kidney Injury. EGYPTIAN JOURNAL OF BASIC AND CLINICAL PHARMACOLOGY 2019. [DOI: 10.32527/2019/101402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
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Eisenreich W, Rudel T, Heesemann J, Goebel W. How Viral and Intracellular Bacterial Pathogens Reprogram the Metabolism of Host Cells to Allow Their Intracellular Replication. Front Cell Infect Microbiol 2019; 9:42. [PMID: 30886834 PMCID: PMC6409310 DOI: 10.3389/fcimb.2019.00042] [Citation(s) in RCA: 123] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 02/08/2019] [Indexed: 12/12/2022] Open
Abstract
Viruses and intracellular bacterial pathogens (IBPs) have in common the need of suitable host cells for efficient replication and proliferation during infection. In human infections, the cell types which both groups of pathogens are using as hosts are indeed quite similar and include phagocytic immune cells, especially monocytes/macrophages (MOs/MPs) and dendritic cells (DCs), as well as nonprofessional phagocytes, like epithelial cells, fibroblasts and endothelial cells. These terminally differentiated cells are normally in a metabolically quiescent state when they are encountered by these pathogens during infection. This metabolic state of the host cells does not meet the extensive need for nutrients required for efficient intracellular replication of viruses and especially IBPs which, in contrast to the viral pathogens, have to perform their own specific intracellular metabolism to survive and efficiently replicate in their host cell niches. For this goal, viruses and IBPs have to reprogram the host cell metabolism in a pathogen-specific manner to increase the supply of nutrients, energy, and metabolites which have to be provided to the pathogen to allow its replication. In viral infections, this appears to be often achieved by the interaction of specific viral factors with central metabolic regulators, including oncogenes and tumor suppressors, or by the introduction of virus-specific oncogenes. Less is so far known on the mechanisms leading to metabolic reprogramming of the host cell by IBPs. However, the still scant data suggest that similar mechanisms may also determine the reprogramming of the host cell metabolism in IBP infections. In this review, we summarize and compare the present knowledge on this important, yet still poorly understood aspect of pathogenesis of human viral and especially IBP infections.
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Affiliation(s)
- Wolfgang Eisenreich
- Chair of Biochemistry, Department of Chemistry, Technische Universität München, Garching, Germany
| | - Thomas Rudel
- Chair of Microbiology, Biocenter, University of Würzburg, Würzburg, Germany
| | - Jürgen Heesemann
- Max von Pettenkofer-Institute, Ludwig Maximilian University of Munich, Munich, Germany
| | - Werner Goebel
- Max von Pettenkofer-Institute, Ludwig Maximilian University of Munich, Munich, Germany
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30
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Weng X, Zhang Y, Li Z, Yu L, Xu F, Fang M, Hou L, Ge J, Xu Y. Class II transactivator (CIITA) mediates IFN-γ induced eNOS repression by enlisting SUV39H1. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2019; 1862:163-172. [PMID: 30716531 DOI: 10.1016/j.bbagrm.2019.01.005] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 01/07/2019] [Accepted: 01/21/2019] [Indexed: 12/20/2022]
Abstract
Endothelial nitric oxide synthase (eNOS), selectively expressed in vascular endothelial cells, plays important roles in a range of biological and pathological processes. eNOS levels can be altered by extrinsic and intrinsic cues at the transcriptional level. Here we examined the epigenetic mechanism whereby the pro-inflammatory cytokine interferon gamma (IFN-γ) represses eNOS transcription. In response to IFN-γ treatment, there was a simultaneous down-regulation of eNOS expression and up-regulation of class II trans-activator (CIITA). Over-expression of CIITA directly repressed eNOS promoter while CIITA knockdown attenuated IFN-γ induced eNOS repression. Chromatin immunoprecipitation (ChIP) assay revealed that IFN-γ stimulation promoted CIITA occupancy on the proximal eNOS (-430/-168). Coincidently, CIITA recruitment to the eNOS promoter was paralleled by the disappearance of trimethylated histone H3K4 (H3K4Me3) and the enrichment of trimethylated H3K9 (H3K9Me3) with no significant changes in the levels of trimethylated H3K27 (H3K27Me3) or trimethylated H4K20 (H4K20Me3). In accordance, CIITA depletion was associated with the normalization of H3K4Me3 and H3K9Me3 on the eNOS promoter. Mechanistically, CIITA interacted with and enlisted the histone H3K9 trimethyltransferase SUV39H1 to the eNOS promoter to repress transcription. IFN-γ treatment augmented SUV39H1 expression and promoted SUV39H1 recruitment to the eNOS promoter in endothelial cells. Silencing of SUV39H1 abrogated eNOS repression by IFN-γ by erasing H3K9Me3 from the eNOS promoter. In conclusion, our data reveal a novel role for CIITA in endothelial cells and present SUV39H1 as a druggable target in the intervention of endothelial dysfunction.
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Affiliation(s)
- Xinyu Weng
- Institute of Biomedical Sciences, Department of Cardiology, Shanghai Institute of Cardiovascular Disease, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yuanyuan Zhang
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Translational Medicine, Department of Pathophysiology, Nanjing Medical University, Nanjing, China
| | - Zilong Li
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Translational Medicine, Department of Pathophysiology, Nanjing Medical University, Nanjing, China; Institute of Biomedical Research, Liaocheng University, Liaocheng, China
| | - Liming Yu
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Translational Medicine, Department of Pathophysiology, Nanjing Medical University, Nanjing, China
| | - Feng Xu
- Scientific Research Department, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Mingming Fang
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Translational Medicine, Department of Pathophysiology, Nanjing Medical University, Nanjing, China; Institute of Biomedical Research, Liaocheng University, Liaocheng, China
| | - Lei Hou
- Department of Cardiology, Affiliated Tong Ren Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
| | - Junbo Ge
- Institute of Biomedical Sciences, Department of Cardiology, Shanghai Institute of Cardiovascular Disease, Zhongshan Hospital, Fudan University, Shanghai, China.
| | - Yong Xu
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Translational Medicine, Department of Pathophysiology, Nanjing Medical University, Nanjing, China; Institute of Biomedical Research, Liaocheng University, Liaocheng, China.
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31
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Bastos Sales L, van Esterik JCJ, Hodemaekers HM, Lamoree MH, Hamers T, van der Ven LTM, Legler J. Analysis of Lipid Metabolism, Immune Function, and Neurobehavior in Adult C57BL/6JxFVB Mice After Developmental Exposure to di (2-ethylhexyl) Phthalate. Front Endocrinol (Lausanne) 2018; 9:684. [PMID: 30519216 PMCID: PMC6259287 DOI: 10.3389/fendo.2018.00684] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 11/01/2018] [Indexed: 12/16/2022] Open
Abstract
Background: Developmental exposure to di (2-ethylhexyl) phthalate (DEHP) has been implicated in the onset of metabolic syndrome later in life. Alterations in neurobehavior and immune functions are also affected by phthalate exposure and may be linked to the metabolic changes caused by developmental exposure to DEHP. Objectives: Our goal was to study the effects of developmental exposure to DEHP in the context of metabolic syndrome by integrating different parameters to assess metabolic, neurobehavioral, and immune functions in one model. Methods: Female C57BL/6J mice were exposed to DEHP through the diet during gestation and lactation at doses ranging from 3.3 to 100,000 μg/kg body weight/day (μkd). During a 1-year follow-up period, a wide set of metabolic parameters was assessed in the F1 offspring, including weekly body weight measurements, food consumption, physical activity, glucose homeostasis, serum lipids, and endocrine profile. In addition, neurobehavioral and immune functions were assessed by sweet preference test, object recognition test, acute phase protein, and cytokines production. Animals were challenged with a high fat diet (HFD) in the last 9 weeks of the study. Results: Increased free fatty acids (FFA) and, high density lipoprotein (HDL-C) were observed in serum, together with a decrease in glycated hemoglobin levels in blood of 1-year old male DEHP-exposed offspring after HFD challenge. For the most sensitive endpoint measured (FFA), a lower bound of the 90%-confidence interval for benchmark dose (BMD) at a critical effect size of 5% (BMDL) of 2,160 μkd was calculated. No persistent changes in body weight or fat mass were observed. At 33,000 μkd altered performance was found in the object recognition test in males and changes in interferon (IFN)γ production were observed in females. Conclusions: Developmental exposure to DEHP combined with HFD in adulthood led to changes in lipid metabolism and neurobehavior in male offspring and cytokine production in female offspring. Our findings contribute to the evidence that DEHP is a developmental dyslipidemic chemical, however, more research is needed to further characterize adverse health outcomes and the mechanisms of action associated with the observed sex-specific effects.
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Affiliation(s)
- Liana Bastos Sales
- Department of Environment and Health, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | | | - Hennie M. Hodemaekers
- Center for Health Protection, National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands
| | - Marja H. Lamoree
- Department of Environment and Health, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Timo Hamers
- Department of Environment and Health, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Leo T. M. van der Ven
- Center for Health Protection, National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands
| | - Juliette Legler
- Institute for Risk Assessment Sciences (IRAS), Utrecht University, Utrecht, Netherlands
- Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands
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32
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Hypermethylated in cancer 1 (HIC1) mediates high glucose induced ROS accumulation in renal tubular epithelial cells by epigenetically repressing SIRT1 transcription. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2018; 1861:917-927. [DOI: 10.1016/j.bbagrm.2018.08.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 08/09/2018] [Accepted: 08/22/2018] [Indexed: 01/22/2023]
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33
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Rovira-Llopis S, Apostolova N, Bañuls C, Muntané J, Rocha M, Victor VM. Mitochondria, the NLRP3 Inflammasome, and Sirtuins in Type 2 Diabetes: New Therapeutic Targets. Antioxid Redox Signal 2018; 29:749-791. [PMID: 29256638 DOI: 10.1089/ars.2017.7313] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
SIGNIFICANCE Type 2 diabetes mellitus and hyperglycemia can lead to the development of comorbidities such as atherosclerosis and microvascular/macrovascular complications. Both type 2 diabetes and its complications are related to mitochondrial dysfunction and oxidative stress. Type 2 diabetes is also a chronic inflammatory condition that leads to inflammasome activation and the release of proinflammatory mediators, including interleukins (ILs) IL-1β and IL-18. Moreover, sirtuins are energetic sensors that respond to metabolic load, which highlights their relevance in metabolic diseases, such as type 2 diabetes. Recent Advances: Over the past decade, great progress has been made in clarifying the signaling events regulated by mitochondria, inflammasomes, and sirtuins. Nod-like receptor family pyrin domain containing 3 (NLRP3) is the best characterized inflammasome, and the generation of oxidant species seems to be critical for its activation. NLRP3 inflammasome activation and altered sirtuin levels have been observed in type 2 diabetes. Critical Issue: Despite increasing evidence of the relationship between the NLRP3 inflammasome, mitochondrial dysfunction, and oxidative stress and of their participation in type 2 diabetes physiopathology, therapeutic strategies to combat type 2 diabetes that target NLRP3 inflammasome and sirtuins are yet to be consolidated. FUTURE DIRECTIONS In this review article, we attempt to provide an overview of the existing literature concerning the crosstalk between mitochondrial impairment and the inflammasome, with particular attention to cellular and mitochondrial redox metabolism and the potential role of the NLRP3 inflammasome and sirtuins in the pathogenesis of type 2 diabetes. In addition, we discuss potential targets for therapeutic intervention based on these molecular interactions. Antioxid. Redox Signal. 29, 749-791.
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Affiliation(s)
- Susana Rovira-Llopis
- 1 Service of Endocrinology and Nutrition, University Hospital Doctor Peset , Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), Valencia, Spain
| | - Nadezda Apostolova
- 2 Department of Pharmacology, University of Valencia , Valencia, Spain .,4 CENTRO DE INVESTIGACIÓN BIOMÉDICA EN RED de Enfermedades Hepáticas y Digestivas (CIBERehd) , Madrid, Spain
| | - Celia Bañuls
- 1 Service of Endocrinology and Nutrition, University Hospital Doctor Peset , Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), Valencia, Spain
| | - Jordi Muntané
- 3 Department of General Surgery, Hospital University "Virgen del Rocío"/IBiS/CSIC/University of Seville , Seville, Spain .,4 CENTRO DE INVESTIGACIÓN BIOMÉDICA EN RED de Enfermedades Hepáticas y Digestivas (CIBERehd) , Madrid, Spain
| | - Milagros Rocha
- 1 Service of Endocrinology and Nutrition, University Hospital Doctor Peset , Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), Valencia, Spain .,4 CENTRO DE INVESTIGACIÓN BIOMÉDICA EN RED de Enfermedades Hepáticas y Digestivas (CIBERehd) , Madrid, Spain
| | - Victor M Victor
- 1 Service of Endocrinology and Nutrition, University Hospital Doctor Peset , Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), Valencia, Spain .,4 CENTRO DE INVESTIGACIÓN BIOMÉDICA EN RED de Enfermedades Hepáticas y Digestivas (CIBERehd) , Madrid, Spain .,5 Department of Physiology, University of Valencia , Valencia, Spain
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34
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Preston G, Kirdar F, Kozicz T. The role of suboptimal mitochondrial function in vulnerability to post-traumatic stress disorder. J Inherit Metab Dis 2018; 41:585-596. [PMID: 29594645 DOI: 10.1007/s10545-018-0168-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 02/28/2018] [Accepted: 03/02/2018] [Indexed: 12/13/2022]
Abstract
Post-traumatic stress disorder remains the most significant psychiatric condition associated with exposure to a traumatic event, though rates of traumatic event exposure far outstrip incidence of PTSD. Mitochondrial dysfunction and suboptimal mitochondrial function have been increasingly implicated in several psychopathologies, and recent genetic studies have similarly suggested a pathogenic role of mitochondria in PTSD. Mitochondria play a central role in several physiologic processes underlying PTSD symptomatology, including abnormal fear learning, brain network activation, synaptic plasticity, steroidogenesis, and inflammation. Here we outline several potential mechanisms by which inherited (genetic) or acquired (environmental) mitochondrial dysfunction or suboptimal mitochondrial function, may contribute to PTSD symptomatology and increase susceptibility to PTSD. The proposed pathogenic role of mitochondria in the pathophysiology of PTSD has important implications for prevention and therapy, as antidepressants commonly prescribed for patients with PTSD have been shown to inhibit mitochondrial function, while alternative therapies shown to improve mitochondrial function may prove more efficacious.
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Affiliation(s)
- Graeme Preston
- Hayward Genetics Center, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA.
| | - Faisal Kirdar
- Hayward Genetics Center, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
| | - Tamas Kozicz
- Hayward Genetics Center, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA
- Department of Clinical Genomics, Mayo Clinic, Rochester, MN, USA
- Department of Anatomy, Radboud University Medical Center, Nijmegen, Netherlands
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35
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Ong AL, Ramasamy TS. Role of Sirtuin1-p53 regulatory axis in aging, cancer and cellular reprogramming. Ageing Res Rev 2018; 43:64-80. [PMID: 29476819 DOI: 10.1016/j.arr.2018.02.004] [Citation(s) in RCA: 184] [Impact Index Per Article: 30.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 01/23/2018] [Accepted: 02/16/2018] [Indexed: 12/12/2022]
Abstract
Regulatory role of Sirtuin 1 (SIRT1), one of the most extensively studied members of its kind in histone deacetylase family in governing multiple cellular fates, is predominantly linked to p53 activity. SIRT1 deacetylates p53 in a NAD+-dependent manner to inhibit transcription activity of p53, in turn modulate pathways that are implicated in regulation of tissue homoeostasis and many disease states. In this review, we discuss the role of SIRT1-p53 pathway and its regulatory axis in the cellular events which are implicated in cellular aging, cancer and reprogramming. It is noteworthy that these cellular events share few common regulatory pathways, including SIRT1-p53-LDHA-Myc, miR-34a,-Let7 regulatory network, which forms a positive feedback loop that controls cell cycle, metabolism, proliferation, differentiation, epigenetics and many others. In the context of aging, SIRT1 expression is reduced as a protective mechanism against oncogenesis and for maintenance of tissue homeostasis. Interestingly, its activation in aged cells is evidenced in response to DNA damage to protect the cells from p53-dependent apoptosis or senescence, predispose these cells to neoplastic transformation. Importantly, the dual roles of SIRT1-p53 axis in aging and tumourigenesis, either as tumour suppressor or tumour promoter are determined by SIRT1 localisation and type of cells. Conceptualising the distinct similarity between tumorigenesis and cellular reprogramming, this review provides a perspective discussion on involvement of SIRT1 in improving efficiency in the induction and maintenance of pluripotent state. Further research in understanding the role of SIRT1-p53 pathway and their associated regulators and strategies to manipulate this regulatory axis very likely foster the development of therapeutics and strategies for treating cancer and aging-associated degenerative diseases.
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36
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Nuclear sirtuins and inflammatory signaling pathways. Cytokine Growth Factor Rev 2017; 38:98-105. [DOI: 10.1016/j.cytogfr.2017.11.001] [Citation(s) in RCA: 133] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 11/06/2017] [Indexed: 02/06/2023]
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37
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Hepatic stellate cell-specific deletion of SIRT1 exacerbates liver fibrosis in mice. Biochim Biophys Acta Mol Basis Dis 2017; 1863:3202-3211. [DOI: 10.1016/j.bbadis.2017.09.008] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 08/23/2017] [Accepted: 09/08/2017] [Indexed: 01/15/2023]
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38
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Burrows K, Antignano F, Bramhall M, Chenery A, Scheer S, Korinek V, Underhill TM, Zaph C. The transcriptional repressor HIC1 regulates intestinal immune homeostasis. Mucosal Immunol 2017; 10:1518-1528. [PMID: 28327618 DOI: 10.1038/mi.2017.17] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 02/09/2017] [Indexed: 02/04/2023]
Abstract
The intestine is a unique immune environment that must respond to infectious organisms but remain tolerant to commensal microbes and food antigens. However, the molecular mechanisms that regulate immune cell function in the intestine remain unclear. Here we identify the POK/ZBTB family transcription factor hypermethylated in cancer 1 (HIC1, ZBTB29) as a central component of immunity and inflammation in the intestine. HIC1 is specifically expressed in immune cells in the intestinal lamina propria (LP) in the steady state and mice with a T-cell-specific deletion of HIC1 have reduced numbers of T cells in the LP. HIC1 expression is regulated by the Vitamin A metabolite retinoic acid, as mice raised on a Vitamin A-deficient diet lack HIC1-positive cells in the intestine. HIC1-deficient T cells overproduce IL-17A in vitro and in vivo, and fail to induce intestinal inflammation, identifying a critical role for HIC1 in the regulation of T-cell function in the intestinal microenvironment under both homeostatic and inflammatory conditions.
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Affiliation(s)
- K Burrows
- The Biomedical Research Centre, University of British Columbia, Vancouver, British Columbia, Canada.,Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - F Antignano
- The Biomedical Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - M Bramhall
- Infection and Immunity Program, Monash Biomedicine Discovery Institute, Clayton, Victoria, Australia.,Department of Biochemistry and Molecular Biology, School of Biomedical Sciences, Monash University, Clayton, Victoria, Australia
| | - A Chenery
- The Biomedical Research Centre, University of British Columbia, Vancouver, British Columbia, Canada.,Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - S Scheer
- Infection and Immunity Program, Monash Biomedicine Discovery Institute, Clayton, Victoria, Australia.,Department of Biochemistry and Molecular Biology, School of Biomedical Sciences, Monash University, Clayton, Victoria, Australia
| | - V Korinek
- Department of Cell and Developmental Biology, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - T M Underhill
- The Biomedical Research Centre, University of British Columbia, Vancouver, British Columbia, Canada.,Department of Cellular &Physiological Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - C Zaph
- The Biomedical Research Centre, University of British Columbia, Vancouver, British Columbia, Canada.,Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada.,Infection and Immunity Program, Monash Biomedicine Discovery Institute, Clayton, Victoria, Australia.,Department of Biochemistry and Molecular Biology, School of Biomedical Sciences, Monash University, Clayton, Victoria, Australia
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39
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Li M, Hong W, Hao C, Li L, Wu D, Shen A, Lu J, Zheng Y, Li P, Xu Y. SIRT1 antagonizes liver fibrosis by blocking hepatic stellate cell activation in mice. FASEB J 2017; 32:500-511. [PMID: 28970250 DOI: 10.1096/fj.201700612r] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 09/11/2017] [Indexed: 01/10/2023]
Abstract
Hepatic stellate cells (HSCs) are a major source of fibrogenesis in the liver, contributing to cirrhosis. When activated, HSCs transdifferentiate into myofibroblasts and undergo profound functional alterations paralleling an overhaul of the transcriptome, the mechanism of which remains largely undefined. We investigated the involvement of the class III deacetylase sirtuin [silent information regulator 1 (SIRT1)] in HSC activation and liver fibrosis. SIRT1 levels were down-regulated in the livers in mouse models of liver fibrosis, in patients with cirrhosis, and in activated HSCs as opposed to quiescent HSCs. SIRT1 activation halted, whereas SIRT1 inhibition promoted, HSC transdifferentiation into myofibroblasts. Liver fibrosis was exacerbated in mice with HSC-specific deletion of SIRT1 [conditional knockout (cKO)], receiving CCl4 (1 mg/kg) injection or subjected to bile duct ligation, compared to wild-type littermates. SIRT1 regulated peroxisome proliferator activated receptor γ (PPARγ) transcription by deacetylating enhancer of zeste homolog 2 (EZH2) in quiescent HSCs. Finally, EZH2 inhibition or PPARγ activation ameliorated fibrogenesis in cKO mice. In summary, our data suggest that SIRT1 plays an essential role guiding the transition of HSC phenotypes.-Li, M., Hong, W., Hao, C., Li, L., Wu, D., Shen, A., Lu, J., Zheng, Y., Li, P., Xu, Y. SIRT1 antagonizes liver fibrosis by blocking hepatic stellate cell activation in mice.
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Affiliation(s)
- Min Li
- Department of Pathophysiology, Key Laboratory of Targeted Intervention of Cardiovascular Disease and Innovative Collaboration Center for Cardiovascular Translational Medicine, Nanjing Medical University, Nanjing, China
| | - Wenxuan Hong
- Department of Pathophysiology, Key Laboratory of Targeted Intervention of Cardiovascular Disease and Innovative Collaboration Center for Cardiovascular Translational Medicine, Nanjing Medical University, Nanjing, China
| | - Chenzhi Hao
- Department of Pathophysiology, Key Laboratory of Targeted Intervention of Cardiovascular Disease and Innovative Collaboration Center for Cardiovascular Translational Medicine, Nanjing Medical University, Nanjing, China
| | - Luyang Li
- Department of Pathophysiology, Key Laboratory of Targeted Intervention of Cardiovascular Disease and Innovative Collaboration Center for Cardiovascular Translational Medicine, Nanjing Medical University, Nanjing, China
| | - Dongmei Wu
- Key Laboratory of Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, China
| | - Aiguo Shen
- Key Laboratory of Inflammation and Molecular Targets, Nantong University College of Medicine, Nantong, China
| | - Jun Lu
- Key Laboratory of Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, China;
| | - Yuanlin Zheng
- Key Laboratory of Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, China
| | - Ping Li
- Department of Pathophysiology, Key Laboratory of Targeted Intervention of Cardiovascular Disease and Innovative Collaboration Center for Cardiovascular Translational Medicine, Nanjing Medical University, Nanjing, China
| | - Yong Xu
- Department of Pathophysiology, Key Laboratory of Targeted Intervention of Cardiovascular Disease and Innovative Collaboration Center for Cardiovascular Translational Medicine, Nanjing Medical University, Nanjing, China;
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40
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Cinkajzlová A, Mráz M, Haluzík M. Lymphocytes and macrophages in adipose tissue in obesity: markers or makers of subclinical inflammation? PROTOPLASMA 2017; 254:1219-1232. [PMID: 28150048 DOI: 10.1007/s00709-017-1082-3] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 01/25/2017] [Indexed: 05/17/2023]
Abstract
Obesity is accompanied by the development of chronic low-grade inflammation in adipose tissue. The presence of chronic inflammatory response along with metabolically harmful factors released by adipose tissue into the circulation is associated with several metabolic complications of obesity such as type 2 diabetes mellitus or accelerated atherosclerosis. The present review is focused on macrophages and lymphocytes and their possible role in low-grade inflammation in fat. Both macrophages and lymphocytes respond to obesity-induced adipocyte hypertrophy by their migration into adipose tissue. After activation and differentiation, they contribute to the development of local inflammatory response and modulation of endocrine function of adipose tissue. Despite intensive research, the exact role of lymphocytes and macrophages within adipose tissue is only partially clarified and various data obtained by different approaches bring ambiguous information with respect to their polarization and cytokine production. Compared to immunocompetent cells, the role of adipocytes in the obesity-related adipose tissue inflammation is often underestimated despite their abundant production of factors with immunomodulatory actions such as cytokines or adipokines such as leptin, adiponektin, and others. In summary, conflicting evidence together with only partial correlation of in vitro findings with true in vivo situation due to great heterogeneity and molecular complexity of tissue environment calls for intensive research in this rapidly evolving and important area.
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Affiliation(s)
- Anna Cinkajzlová
- Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University in Prague and General University Hospital, Prague, Czech Republic
- Centre of Experimental Medicine, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Miloš Mráz
- Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University in Prague and General University Hospital, Prague, Czech Republic
- Diabetes Centre, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Martin Haluzík
- Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University in Prague and General University Hospital, Prague, Czech Republic.
- Centre of Experimental Medicine, Institute for Clinical and Experimental Medicine, Prague, Czech Republic.
- Diabetes Centre, Institute for Clinical and Experimental Medicine, Prague, Czech Republic.
- Department of Obesitology, Institute of Endocrinology, Prague, Czech Republic.
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41
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Shao J, Li L, Xu H, Yang L, Bian Y, Fang M, Xu Y. Suv39h2 deficiency ameliorates diet-induced steatosis in mice. Biochem Biophys Res Commun 2017; 485:658-664. [PMID: 28232186 DOI: 10.1016/j.bbrc.2017.02.093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Accepted: 02/18/2017] [Indexed: 11/30/2022]
Abstract
Steatosis is a prototypical metabolic disorder characterized by accumulation of lipid droplets in the liver, extensive hepatic inflammation, and, in advanced stages, accelerated liver fibrogenesis. The molecular mechanism underlying steatosis is not completely understood. In the present study we investigated the involvement of the histone methyltransferase Suv39h2 in the pathogenesis of steatosis. Expression of Suv39h2 was up-regulated in the liver in two different mouse models of steatosis. Suv39h2 knockout (KO) mice developed a less severe form of steatosis fed on a methione-and-choline deficient (MCD) diet, compared to wild type (WT) littermates, as evidenced by reduced levels of plasma ALT, down-regulated expression of pro-inflammatory mediators, and decreased infiltration of macrophages. In addition, Masson's trichrome staining as well as qPCR measurements of fibrogenic genes suggested that liver fibrosis was attenuated in MCD diet-fed KO mice compared to WT mice. Further analysis found that Suv39h2 repressed SIRT1 expression in the liver by stimulating histone H3K9 trimethylation surrounding the SIRT1 promoter and that Suv39h2 deficiency alleviated SIRT1 expression in MCD diet-fed mice. Therefore, our data support a role of Suv39h2 in promoting steatosis in mice likely through contributing to SIRT1 trans-reperssion.
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Affiliation(s)
- Jing Shao
- College of Basic Medical Sciences, Nanjing University of Chinese Medicine, Nanjing, China
| | - Luyang Li
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China
| | - Huihui Xu
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China
| | - Lili Yang
- First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yaoyao Bian
- School of Nursing, Nanjing University of Chinese Medicine, Nanjing, China
| | - Mingming Fang
- Department of Nursing, Jiangsu Jiankang Vocational College, Nanjing, China.
| | - Yong Xu
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China.
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42
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Yang G, Weng X, Zhao Y, Zhang X, Hu Y, Dai X, Liang P, Wang P, Ma L, Sun X, Hou L, Xu H, Fang M, Li Y, Jenuwein T, Xu Y, Sun A. The histone H3K9 methyltransferase SUV39H links SIRT1 repression to myocardial infarction. Nat Commun 2017; 8:14941. [PMID: 28361889 PMCID: PMC5381011 DOI: 10.1038/ncomms14941] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Accepted: 02/15/2017] [Indexed: 12/27/2022] Open
Abstract
Myocardial infarction (MI) dampens heart function and poses a great health risk. The class III deacetylase sirtuin 1 (SIRT1) is known to confer cardioprotection. SIRT1 expression is downregulated in the heart by a number of stress stimuli that collectively drive the pathogenesis of MI, although the underlying mechanism remains largely obscure. Here we show that in primary rat neonatal ventricular myocytes (NRVMs), ischaemic or oxidative stress leads to a rapid upregulation of SUV39H, the mammalian histone H3K9 methyltransferase, paralleling SIRT1 downregulation. Compared to wild-type littermates, SUV39H knockout mice are protected from MI. Likewise, suppression of SUV39H activity with chaetocin attenuates cardiac injury following MI. Mechanistically, SUV39H cooperates with heterochromatin protein 1 gamma (HP1γ) to catalyse H3K9 trimethylation on the SIRT1 promoter and represses SIRT1 transcription. SUV39H augments intracellular ROS levels in a SIRT1-dependent manner. Our data identify a previously unrecognized role for SUV39H linking SIRT1 trans-repression to myocardial infarction. The molecular pathways regulating the cardioprotective activity of deacetylase sirtuin-1 are unknown. Here, Yang et al. show that histone H3K9 methyltransferase SUV39H and HP1gamma cooperatively methylate H3K9 on the sirtuin-1 promoter and inhibit sirtuin-1 transcription, and show that inhibition of SUV39H in mice is cardioprotective.
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Affiliation(s)
- Guang Yang
- Key Laboratory of Cardiovascular Disease and Molecular Intervention and Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Pathophysiology, Nanjing Medical University, Nanjing 211166, China
| | - Xinyu Weng
- Key Laboratory of Cardiovascular Disease and Molecular Intervention and Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Pathophysiology, Nanjing Medical University, Nanjing 211166, China.,Shanghai Institute of Cardiovascular Disease, Zhongshan Hospital, Fudan University, Shanghai 200032, China.,Institute of Biomedical Sciences, Fudan University, Shanghai 200032, China
| | - Yuhao Zhao
- Key Laboratory of Cardiovascular Disease and Molecular Intervention and Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Pathophysiology, Nanjing Medical University, Nanjing 211166, China
| | - Xinjian Zhang
- Key Laboratory of Cardiovascular Disease and Molecular Intervention and Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Pathophysiology, Nanjing Medical University, Nanjing 211166, China
| | - Yuanping Hu
- Key Laboratory of Cardiovascular Disease and Molecular Intervention and Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Pathophysiology, Nanjing Medical University, Nanjing 211166, China
| | - Xin Dai
- Key Laboratory of Cardiovascular Disease and Molecular Intervention and Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Pathophysiology, Nanjing Medical University, Nanjing 211166, China
| | - Peng Liang
- Key Laboratory of Cardiovascular Disease and Molecular Intervention and Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Pathophysiology, Nanjing Medical University, Nanjing 211166, China
| | - Peng Wang
- Shanghai Institute of Cardiovascular Disease, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - LeiLei Ma
- Shanghai Institute of Cardiovascular Disease, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Xiaolei Sun
- Institute of Biomedical Sciences, Fudan University, Shanghai 200032, China
| | - Lei Hou
- Institute of Biomedical Sciences, Fudan University, Shanghai 200032, China
| | - Huihui Xu
- Key Laboratory of Cardiovascular Disease and Molecular Intervention and Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Pathophysiology, Nanjing Medical University, Nanjing 211166, China
| | - Mingming Fang
- Key Laboratory of Cardiovascular Disease and Molecular Intervention and Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Pathophysiology, Nanjing Medical University, Nanjing 211166, China.,Department of Nursing, Jiangsu Jiankang Vocational College, Nanjing 210029, china
| | - Yuehua Li
- Key Laboratory of Cardiovascular Disease and Molecular Intervention and Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Pathophysiology, Nanjing Medical University, Nanjing 211166, China
| | - Thomas Jenuwein
- Department of Epigenetics, Max Planck Institute of Immunobiology and Epigenetics, Stübeweg 51, 79108 Freiburg, Germany
| | - Yong Xu
- Key Laboratory of Cardiovascular Disease and Molecular Intervention and Key Laboratory of Human Functional Genomics of Jiangsu Province, Department of Pathophysiology, Nanjing Medical University, Nanjing 211166, China
| | - Aijun Sun
- Shanghai Institute of Cardiovascular Disease, Zhongshan Hospital, Fudan University, Shanghai 200032, China.,Institute of Biomedical Sciences, Fudan University, Shanghai 200032, China
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43
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The potential curative effect of rebamipide in hepatic ischemia/reperfusion injury. Naunyn Schmiedebergs Arch Pharmacol 2017; 390:691-700. [DOI: 10.1007/s00210-017-1370-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 03/21/2017] [Indexed: 01/11/2023]
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44
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Schmidt EA, Fee BE, Henry SC, Nichols AG, Shinohara ML, Rathmell JC, MacIver NJ, Coers J, Ilkayeva OR, Koves TR, Taylor GA. Metabolic Alterations Contribute to Enhanced Inflammatory Cytokine Production in Irgm1-deficient Macrophages. J Biol Chem 2017; 292:4651-4662. [PMID: 28154172 PMCID: PMC5377780 DOI: 10.1074/jbc.m116.770735] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 01/19/2017] [Indexed: 12/19/2022] Open
Abstract
The immunity-related GTPases (IRGs) are a family of proteins that are induced by interferon (IFN)-γ and play pivotal roles in immune and inflammatory responses. IRGs ostensibly function as dynamin-like proteins that bind to intracellular membranes and promote remodeling and trafficking of those membranes. Prior studies have shown that loss of Irgm1 in mice leads to increased lethality to bacterial infections as well as enhanced inflammation to non-infectious stimuli; however, the mechanisms underlying these phenotypes are unclear. In the studies reported here, we found that uninfected Irgm1-deficient mice displayed high levels of serum cytokines typifying profound autoinflammation. Similar increases in cytokine production were also seen in cultured, IFN-γ-primed macrophages that lacked Irgm1. A series of metabolic studies indicated that the enhanced cytokine production was associated with marked metabolic changes in the Irgm1-deficient macrophages, including increased glycolysis and an accumulation of long chain acylcarnitines. Cells were exposed to the glycolytic inhibitor, 2-deoxyglucose, or fatty acid synthase inhibitors to perturb the metabolic alterations, which resulted in dampening of the excessive cytokine production. These results suggest that Irgm1 deficiency drives metabolic dysfunction in macrophages in a manner that is cell-autonomous and independent of infectious triggers. This may be a significant contributor to excessive inflammation seen in Irgm1-deficient mice in different contexts.
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Affiliation(s)
| | - Brian E Fee
- the Geriatric Research, Education, and Clinical Center, Durham Veterans Affairs Health Care System, Durham, North Carolina 27705, and
| | - Stanley C Henry
- the Geriatric Research, Education, and Clinical Center, Durham Veterans Affairs Health Care System, Durham, North Carolina 27705, and
| | - Amanda G Nichols
- the Department of Pediatrics, Division of Pediatric Endocrinology and Diabetes
| | - Mari L Shinohara
- From the Departments of Molecular Genetics and Microbiology
- the Department of Immunology
| | - Jeffrey C Rathmell
- the Department of Pathology, Microbiology, and Immunology, Vanderbilt Center for Immunobiology, Vanderbilt University, Nashville, Tennessee 37232
| | - Nancie J MacIver
- the Department of Pediatrics, Division of Pediatric Endocrinology and Diabetes
| | - Jörn Coers
- From the Departments of Molecular Genetics and Microbiology
| | | | - Timothy R Koves
- the Duke Molecular Physiology Institute, and
- the Department of Medicine, Division of Geriatrics, and Center for the Study of Aging and Human Development, Duke University Medical Center, Durham, North Carolina 27710
| | - Gregory A Taylor
- From the Departments of Molecular Genetics and Microbiology,
- the Geriatric Research, Education, and Clinical Center, Durham Veterans Affairs Health Care System, Durham, North Carolina 27705, and
- the Department of Immunology
- the Department of Medicine, Division of Geriatrics, and Center for the Study of Aging and Human Development, Duke University Medical Center, Durham, North Carolina 27710
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45
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Pillon NJ, Krook A. Innate immune receptors in skeletal muscle metabolism. Exp Cell Res 2017; 360:47-54. [PMID: 28232117 DOI: 10.1016/j.yexcr.2017.02.035] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Accepted: 02/20/2017] [Indexed: 12/14/2022]
Abstract
Recent decades have seen increasing evidence for a role for both innate and adaptive immunity in response to changes in and in the modulation of metabolic status. This new field of immunometabolism builds on evidence for activation of immune-derived signals in metabolically relevant tissues such as adipose tissue, liver, hypothalamus and skeletal muscle. Skeletal muscle is the primary site of dietary glucose disposal and therefore a key player in the development of diabetes, but studies on the role of inflammation in modulating skeletal muscle metabolism and its possible impact on whole body insulin sensitivity are scarce. This review describes the baseline mRNA expression of innate immune receptors (Toll- and NOD-like receptors) in human skeletal muscle and summarizes studies on putative role of these receptors in skeletal muscle in the context of diabetes, obesity and whole body metabolism.
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Affiliation(s)
- Nicolas J Pillon
- Department of Physiology and Pharmacology, Integrative Physiology, Karolinska Institutet, Stockholm, Sweden.
| | - Anna Krook
- Department of Physiology and Pharmacology, Integrative Physiology, Karolinska Institutet, Stockholm, Sweden
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46
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FoxO1 regulates allergic asthmatic inflammation through regulating polarization of the macrophage inflammatory phenotype. Oncotarget 2017; 7:17532-46. [PMID: 27007158 PMCID: PMC4951231 DOI: 10.18632/oncotarget.8162] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 03/01/2016] [Indexed: 01/18/2023] Open
Abstract
Inflammatory monocyte and tissue macrophages influence the initiation, progression, and resolution of type 2 immune responses, and alveolar macrophages are the most prevalent immune-effector cells in the lung. While we were characterizing the M1- or M2-like macrophages in type 2 allergic inflammation, we discovered that FoxO1 is highly expressed in alternatively activated macrophages. Although several studies have been focused on the fundamental role of FoxOs in hematopoietic and immune cells, the exact role that FoxO1 plays in allergic asthmatic inflammation in activated macrophages has not been investigated. Growing evidences indicate that FoxO1 acts as an upstream regulator of IRF4 and could have a role in a specific inflammatory phenotype of macrophages. Therefore, we hypothesized that IRF4 expression regulated by FoxO1 in alveolar macrophages is required for established type 2 immune mediates allergic lung inflammation. Our data indicate that targeted deletion of FoxO1 using FoxO1-selective inhibitor AS1842856 and genetic ablation of FoxO1 in macrophages significantly decreases IRF4 and various M2 macrophage-associated genes, suggesting a mechanism that involves FoxO1-IRF4 signaling in alveolar macrophages that works to polarize macrophages toward established type 2 immune responses. In response to the challenge of DRA (dust mite, ragweed, and Aspergillus) allergens, macrophage specific FoxO1 overexpression is associated with an accentuation of asthmatic lung inflammation, whereas pharmacologic inhibition of FoxO1 by AS1842856 attenuates the development of asthmatic lung inflammation. Thus, our study identifies a role for FoxO1-IRF4 signaling in the development of alternatively activated alveolar macrophages that contribute to type 2 allergic airway inflammation.
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47
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Fritsch SD, Weichhart T. Effects of Interferons and Viruses on Metabolism. Front Immunol 2016; 7:630. [PMID: 28066439 PMCID: PMC5174094 DOI: 10.3389/fimmu.2016.00630] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 12/08/2016] [Indexed: 12/12/2022] Open
Abstract
Interferons (IFNs) are potent pleiotropic cytokines that broadly alter cellular functions in response to viral and other infections. These alterations include changes in protein synthesis, proliferation, membrane composition, and the nutritional microenvironment. Recent evidence suggests that antiviral responses are supported by an IFN-induced rewiring of the cellular metabolism. In this review, we discuss the roles of type I and type II IFNs in regulating the cellular metabolism and biosynthetic reactions. Furthermore, we give an overview of how viruses themselves affect these metabolic activities to promote their replication. In addition, we focus on the lipid as well as amino acid metabolisms, through which IFNs exert potent antiviral and immunomodulatory activities. Conversely, the expression of IFNs is controlled by the nutrient sensor mammalian target of rapamycin or by direct reprograming of lipid metabolic pathways. These findings establish a mutual relationship between IFN production and metabolic core processes.
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Affiliation(s)
| | - Thomas Weichhart
- Institute of Medical Genetics, Medical University of Vienna , Vienna , Austria
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48
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Zeng S, Yang Y, Cheng X, Zhou B, Li P, Zhao Y, Kong X, Xu Y. HIC1 epigenetically represses CIITA transcription in B lymphocytes. BIOCHIMICA ET BIOPHYSICA ACTA 2016; 1859:1481-1489. [PMID: 27720955 DOI: 10.1016/j.bbagrm.2016.10.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 10/05/2016] [Accepted: 10/05/2016] [Indexed: 02/06/2023]
Abstract
Differentiation of B lymphocytes into isotope-specific plasma cells represents a hallmark event in adaptive immunity. During B cell maturation, expression of the class II transactivator (CIITA) gene is down-regulated although the underlying epigenetic mechanism is not completely defined. Here we report that hypermethylated in cancer 1 (HIC1) was up-regulated in differentiating B lymphocytes paralleling CIITA repression. Over-expression of HIC1 directly repressed endogenous CIITA transcription in B cells. Reporter assay and chromatin immunoprecipitation (ChIP) assay confirmed that HIC1 bound to the proximal CIITA type III promoter (-545/-113); mutation of a conserved HIC1 site within this region abrogated CIITA trans-repression. More important, depletion of HIC1 with small interfering RNA (siRNA) restored CIITA expression in differentiating B cells. Mechanistically, HIC1 preferentially interacted with and recruited DNMT1 and DNMT3b to the CIITA promoter to synergistically repress CIITA transcription. On the contrary, silencing of DNMT1/DNMT3b or inhibition of DNMT activity with 5-aza-dC attenuated CIITA trans-repression. Therefore, our data identify HIC1 as a novel factor involved in B cell differentiation acting as an epigenetic repressor of CIITA transcription.
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Affiliation(s)
- Sheng Zeng
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China
| | - Yuyu Yang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Xian Cheng
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China; Jiangsu Institute of Nuclear Medicine, Wuxi, China
| | - Bisheng Zhou
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China
| | - Ping Li
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China; Department of Gastroenterology, Second Hospital Affiliated to Nanjing Medical University, Nanjing, China
| | - Yuhao Zhao
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China
| | - Xiaocen Kong
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China; Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China.
| | - Yong Xu
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China; State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China.
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49
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Wang K, Li W, Yu Q, Guo B, Yang B, Zhang C, Li M, Li J, Hu S, Zheng Q, Song Z. High Mobility Group Box 1 Mediates Interferon-γ-Induced Phenotypic Modulation of Vascular Smooth Muscle Cells. J Cell Biochem 2016; 118:518-529. [PMID: 27579780 DOI: 10.1002/jcb.25682] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 08/26/2016] [Indexed: 02/06/2023]
Abstract
The phenotypic modulation of VSMCs is a key cellular event driving neointimal formation and vascular remodeling. As a multifaceted cytokine of cell-mediated immunity, IFN-γ has been shown to play a critical role in the pathogenesis of vascular proliferative diseases. Although the important function of IFN-γ on regulating VSMC activation is well established, the molecular mechanisms by which elicits VSMC responses are poorly defined. Recent studies have identified HMGB1 as a principal effector to mediate IFN-γ-dependent biological functions in multiple cell types. Moreover, SIRT1 has emerged as a critical regulator of cellular processes through deacetylating multiple substrates, including HMGB1. Thus, we examined the role of IFN-γ on HMGB1 release, SIRT1 expression, and VSMC phenotypic modulation as well as the underlying molecular mechanisms. We show that IFN-γ dose-dependently induces HMGB1 cytoplasmic accumulation and its active release from VSMCs, resulting in enhanced HMGB1 in the medium. Conversely, IFN-γ treatment led to a dramatic decrease in SIRT1 expression. Additionally, pretreatment with resveratrol, a selective SIRT1 activator, abrogated IFN-γ-induced HMGB1 translocation and its release. Moreover, IFN-γ stimulates VSMC phenotypic modulation to an activated synthetic state characterized by the repression of SMC differentiation markers such as SM22α and calponin and the increase in cell motility. In contrast, blocking HMGB1 release or activity by resveratrol and HMGB1-neutralizing antibody prevents IFN-γ-induced phenotypic modulation of VSMCs. Overall, this study provides the first evidence showing that HMGB1 plays a critical role in regulating VSMC phenotypic modulation, suggesting that HMGB1 may be a potential therapeutic target to prevent vascular occlusive diseases. J. Cell. Biochem. 118: 518-529, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Kun Wang
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Li
- Department of Gerontology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qihong Yu
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bing Guo
- Aab Cardiovascular Research Institute, University of Rochester, School of Medicine and Dentistry, Rochester, New York
| | - Bin Yang
- Second Department of Hepatobiliary Surgery, Zhujiang Hospital, State Key Laboratory of Organ Failure Research, Co-Innovation Center for Organ Failure Research, Southern Medical University, Guangzhou, China
| | - Chen Zhang
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Min Li
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jinjin Li
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shaobo Hu
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qichang Zheng
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zifang Song
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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50
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Wu X, Cao N, Fenech M, Wang X. Role of Sirtuins in Maintenance of Genomic Stability: Relevance to Cancer and Healthy Aging. DNA Cell Biol 2016; 35:542-575. [DOI: 10.1089/dna.2016.3280] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Affiliation(s)
- Xiayu Wu
- School of Life Sciences, The Engineering Research Center of Sustainable Development and Utilization of Biomass Energy, Ministry of Education, Yunnan Normal University, Kunming, Yunnan, China
| | - Neng Cao
- School of Life Sciences, The Engineering Research Center of Sustainable Development and Utilization of Biomass Energy, Ministry of Education, Yunnan Normal University, Kunming, Yunnan, China
| | - Michael Fenech
- Genome Health and Personalized Nutrition, Commonwealth Scientific and Industrial Research Organization Food and Nutrition, Adelaide, South Australia, Australia
| | - Xu Wang
- School of Life Sciences, The Engineering Research Center of Sustainable Development and Utilization of Biomass Energy, Ministry of Education, Yunnan Normal University, Kunming, Yunnan, China
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