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Hayderi A, Kumawat AK, Shavva VS, Dreifaldt M, Sigvant B, Petri MH, Kragsterman B, Olofsson PS, Sirsjö A, Ljungberg LU. RSAD2 is abundant in atherosclerotic plaques and promotes interferon-induced CXCR3-chemokines in human smooth muscle cells. Sci Rep 2024; 14:8196. [PMID: 38589444 PMCID: PMC11001978 DOI: 10.1038/s41598-024-58592-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 04/01/2024] [Indexed: 04/10/2024] Open
Abstract
In atherosclerotic lesions, monocyte-derived macrophages are major source of interferon gamma (IFN-γ), a pleotropic cytokine known to regulate the expression of numerous genes, including the antiviral gene RSAD2. While RSAD2 was reported to be expressed in endothelial cells of human carotid lesions, its significance for the development of atherosclerosis remains utterly unknown. Here, we harnessed publicly available human carotid atherosclerotic data to explore RSAD2 in lesions and employed siRNA-mediated gene-knockdown to investigate its function in IFN-γ-stimulated human aortic smooth muscle cells (hAoSMCs). Silencing RSAD2 in IFN-γ-stimulated hAoSMCs resulted in reduced expression and secretion of key CXCR3-chemokines, CXCL9, CXCL10, and CXCL11. Conditioned medium from RSAD2-deficient hAoSMCs exhibited diminished monocyte attraction in vitro compared to conditioned medium from control cells. Furthermore, RSAD2 transcript was elevated in carotid lesions where it was expressed by several different cell types, including endothelial cells, macrophages and smooth muscle cells. Interestingly, RSAD2 displayed significant correlations with CXCL10 (r = 0.45, p = 0.010) and CXCL11 (r = 0.53, p = 0.002) in human carotid lesions. Combining our findings, we uncover a novel role for RSAD2 in hAoSMCs, which could potentially contribute to monocyte recruitment in the context of atherosclerosis.
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Affiliation(s)
- Assim Hayderi
- School of Medical Sciences, Örebro University, Örebro, Sweden.
| | - Ashok K Kumawat
- School of Medical Sciences, Örebro University, Örebro, Sweden
| | - Vladimir S Shavva
- Laboratory of Immunobiology, Division of Cardiovascular Medicine, Department of Medicine, Center for Bioelectronic Medicine, Solna, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Mats Dreifaldt
- School of Medical Sciences, Örebro University, Örebro, Sweden
- Department of Cardiothoracic Surgery and Vascular Surgery, Örebro University Hospital, Örebro, Sweden
| | - Birgitta Sigvant
- Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
- Centre for Clinical Research and Education, Region Värmland, Karlstad, Sweden
| | - Marcelo H Petri
- School of Medical Sciences, Örebro University, Örebro, Sweden
- Department of Cardiothoracic Surgery and Vascular Surgery, Örebro University Hospital, Örebro, Sweden
| | - Björn Kragsterman
- Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
- Department of Surgery, Västmanlands Hospital Västerås, Västerås, Sweden
| | - Peder S Olofsson
- Laboratory of Immunobiology, Division of Cardiovascular Medicine, Department of Medicine, Center for Bioelectronic Medicine, Solna, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
- Institute of Bioelectronic Medicine, Feinstein Institutes for Medical Research, Manhasset, NY, USA
| | - Allan Sirsjö
- School of Medical Sciences, Örebro University, Örebro, Sweden
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2
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Tarnawski L, Shavva VS, Kort EJ, Zhuge Z, Nilsson I, Gallina AL, Martínez-Enguita D, Heller Sahlgren B, Weiland M, Caravaca AS, Schmidt S, Chen P, Abbas K, Wang FH, Ahmed O, Eberhardson M, Färnert A, Weitzberg E, Gustafsson M, Kehr J, Malin SG, Hult H, Carlström M, Jovinge S, Olofsson PS. Cholinergic regulation of vascular endothelial function by human ChAT + T cells. Proc Natl Acad Sci U S A 2023; 120:e2212476120. [PMID: 36989306 PMCID: PMC10083572 DOI: 10.1073/pnas.2212476120] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023] Open
Abstract
Endothelial dysfunction and impaired vasodilation are linked with adverse cardiovascular events. T lymphocytes expressing choline acetyltransferase (ChAT), the enzyme catalyzing biosynthesis of the vasorelaxant acetylcholine (ACh), regulate vasodilation and are integral to the cholinergic antiinflammatory pathway in an inflammatory reflex in mice. Here, we found that human T cell ChAT mRNA expression was induced by T cell activation involving the PI3K signaling cascade. Mechanistically, we identified that ChAT mRNA expression was induced following the attenuation of RE-1 Silencing Transcription factor REST-mediated methylation of the ChAT promoter, and that ChAT mRNA expression levels were up-regulated by GATA3 in human T cells. In functional experiments, T cell-derived ACh increased endothelial nitric oxide-synthase activity, promoted vasorelaxation, and reduced vascular endothelial activation and promoted barrier integrity by a cholinergic mechanism. Further, we observed that survival in a cohort of patients with severe circulatory failure correlated with their relative frequency of ChAT +CD4+ T cells in blood. These findings on ChAT+ human T cells provide a mechanism for cholinergic immune regulation of vascular endothelial function in human inflammation.
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Affiliation(s)
- Laura Tarnawski
- Laboratory of Immunobiology, Division of Cardiovascular Medicine, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, Solna, 171 76 Stockholm, Sweden
| | - Vladimir S Shavva
- Laboratory of Immunobiology, Division of Cardiovascular Medicine, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, Solna, 171 76 Stockholm, Sweden
| | - Eric J Kort
- DeVos Cardiovascular Program, Van Andel Research Institute and Fredrik Meijer Heart and Vascular Institute/Spectrum Health, Grand Rapids, MI 49503
| | - Zhengbing Zhuge
- Department of Physiology and Pharmacology, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Ingrid Nilsson
- Vascular Biology Division, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, 171 65 Stockholm, Sweden
| | - Alessandro L Gallina
- Laboratory of Immunobiology, Division of Cardiovascular Medicine, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, Solna, 171 76 Stockholm, Sweden
| | - David Martínez-Enguita
- Bioinformatics Division, Department of Physics, Chemistry and Biology, Linköping University, 581 83 Linköping, Sweden
| | - Benjamin Heller Sahlgren
- Vascular Biology Division, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, 171 65 Stockholm, Sweden
| | - Matthew Weiland
- DeVos Cardiovascular Program, Van Andel Research Institute and Fredrik Meijer Heart and Vascular Institute/Spectrum Health, Grand Rapids, MI 49503
| | - April S Caravaca
- Laboratory of Immunobiology, Division of Cardiovascular Medicine, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, Solna, 171 76 Stockholm, Sweden
| | | | - Ping Chen
- Division of Clinical Chemistry, Department of Laboratory Medicine, Karolinska Institutet, 141 52 Stockholm, Sweden
| | - Katarina Abbas
- Laboratory of Immunobiology, Division of Cardiovascular Medicine, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, Solna, 171 76 Stockholm, Sweden
| | - Fu-Hua Wang
- Pronexus Analytical AB, Bromma, 167 33 Stockholm, Sweden
| | - Osman Ahmed
- Laboratory of Immunobiology, Division of Cardiovascular Medicine, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, Solna, 171 76 Stockholm, Sweden
| | - Michael Eberhardson
- Laboratory of Immunobiology, Division of Cardiovascular Medicine, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, Solna, 171 76 Stockholm, Sweden
- Department of Health, Medicine and Caring Sciences, Linköping University, 581 83 Linköping, Sweden
| | - Anna Färnert
- Division of Infectious Diseases, Department of Medicine, Solna, Karolinska Institutet, Karolinska University Hospital, 171 76 Stockholm, Sweden
| | - Eddie Weitzberg
- Department of Physiology and Pharmacology, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Mika Gustafsson
- Bioinformatics Division, Department of Physics, Chemistry and Biology, Linköping University, 581 83 Linköping, Sweden
| | - Jan Kehr
- Vascular Biology Division, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, 171 65 Stockholm, Sweden
- Pronexus Analytical AB, Bromma, 167 33 Stockholm, Sweden
| | - Stephen G Malin
- Laboratory of Immunobiology, Division of Cardiovascular Medicine, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, Solna, 171 76 Stockholm, Sweden
| | - Henrik Hult
- Department of Mathematics, KTH Royal Institute of Technology, 114 28 Stockholm, Sweden
| | - Mattias Carlström
- Department of Physiology and Pharmacology, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Stefan Jovinge
- DeVos Cardiovascular Program, Van Andel Research Institute and Fredrik Meijer Heart and Vascular Institute/Spectrum Health, Grand Rapids, MI 49503
- Cardiovascular Institute, Stanford University, Palo Alto, CA 94305
| | - Peder S Olofsson
- Laboratory of Immunobiology, Division of Cardiovascular Medicine, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, Solna, 171 76 Stockholm, Sweden
- Institute of Bioelectronic Medicine, Feinstein Institutes for Medical Research, Manhasset, NY 11030
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Ahmed O, Caravaca AS, Crespo M, Dai W, Liu T, Guo Q, Leiva M, Sabio G, Shavva VS, Malin SG, Olofsson PS. Hepatic stellate cell activation markers are regulated by the vagus nerve in systemic inflammation. Bioelectron Med 2023; 9:6. [PMID: 36997988 PMCID: PMC10064698 DOI: 10.1186/s42234-023-00108-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 03/10/2023] [Indexed: 04/01/2023] Open
Abstract
BACKGROUND The liver is an important immunological organ and liver inflammation is part of the pathophysiology of non-alcoholic steatohepatitis, a condition that may promote cirrhosis, liver cancer, liver failure, and cardiovascular disease. Despite dense innervation of the liver parenchyma, little is known about neural regulation of liver function in inflammation. Here, we study vagus nerve control of the liver response to acute inflammation. METHODS Male C57BL/6 J mice were subjected to either sham surgery, surgical vagotomy, or electrical vagus nerve stimulation followed by intraperitoneal injection of the TLR2 agonist zymosan. Animals were euthanized and tissues collected 12 h after injection. Samples were analyzed by qPCR, RNAseq, flow cytometry, or ELISA. RESULTS Hepatic mRNA levels of pro-inflammatory mediators Ccl2, Il-1β, and Tnf-α were significantly higher in vagotomized mice compared with mice subjected to sham surgery. Differences in liver Ccl2 levels between treatment groups were largely reflected in the plasma chemokine (C-C motif) ligand 2 (CCL2) concentration. In line with this, we observed a higher number of macrophages in the livers of vagotomized mice compared with sham as measured by flow cytometry. In mice subjected to electrical vagus nerve stimulation, hepatic mRNA levels of Ccl2, Il1β, and Tnf-α, and plasma CCL2 levels, were significantly lower compared with sham. Interestingly, RNAseq revealed that a key activation marker for hepatic stellate cells (HSC), Pnpla3, was the most significantly differentially expressed gene between vagotomized and sham mice. Of note, several HSC-activation associated transcripts were higher in vagotomized mice, suggesting that signals in the vagus nerve contribute to HSC activation. In support of this, we observed significantly higher number of activated HSCs in vagotomized mice as compared with sham as measured by flow cytometry. CONCLUSIONS Signals in the cervical vagus nerve controlled hepatic inflammation and markers of HSC activation in zymosan-induced peritonitis.
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Affiliation(s)
- Osman Ahmed
- Department of Medicine Solna, Laboratory of Immunobiology, Division of Cardiovascular Medicine, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Biochemistry, Faculty of Medicine, Khartoum University, Khartoum, Sudan
- Department of Medicine Solna, Stockholm Center for Bioelectronic Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - April S Caravaca
- Department of Medicine Solna, Laboratory of Immunobiology, Division of Cardiovascular Medicine, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Medicine Solna, Stockholm Center for Bioelectronic Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Maria Crespo
- Spanish National Center for Cardiovascular Research (CNIC), Madrid, Spain
| | - Wanmin Dai
- Department of Medicine Solna, Laboratory of Immunobiology, Division of Cardiovascular Medicine, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Medicine Solna, Stockholm Center for Bioelectronic Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Ting Liu
- Department of Medicine Solna, Laboratory of Immunobiology, Division of Cardiovascular Medicine, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Medicine Solna, Stockholm Center for Bioelectronic Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Qi Guo
- Department of Medicine Solna, Laboratory of Immunobiology, Division of Cardiovascular Medicine, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Medicine Solna, Stockholm Center for Bioelectronic Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Magdalena Leiva
- Department of Immunology, School of Medicine, Complutense University of Madrid, Madrid, Spain
| | - Guadalupe Sabio
- Spanish National Center for Cardiovascular Research (CNIC), Madrid, Spain
| | - Vladimir S Shavva
- Department of Medicine Solna, Laboratory of Immunobiology, Division of Cardiovascular Medicine, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Medicine Solna, Stockholm Center for Bioelectronic Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Stephen G Malin
- Department of Medicine Solna, Laboratory of Immunobiology, Division of Cardiovascular Medicine, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Peder S Olofsson
- Department of Medicine Solna, Laboratory of Immunobiology, Division of Cardiovascular Medicine, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden.
- Department of Medicine Solna, Stockholm Center for Bioelectronic Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden.
- Institute of Bioelectronic Medicine, Feinstein Institutes for Medical Research, Manhasset, NY, USA.
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4
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Shavva VS, Babina AV, Nekrasova EV, Lisunov AV, Dizhe EB, Oleinikova GN, Orlov SV. Insulin Downregulates the Expression of ATP-binding Cassette Transporter A-I in Human Hepatoma Cell Line HepG2 in a FOXO1 and LXR Dependent Manner. Cell Biochem Biophys 2023; 81:151-160. [PMID: 36251137 DOI: 10.1007/s12013-022-01109-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 10/05/2022] [Indexed: 11/03/2022]
Abstract
ATP-binding cassette transporter A-I (ABCA1) is an ubiquitously expressed protein whose main function is the transmembrane transport of cholesterol and phospholipids. Synthesis of ABCA1 protein in liver is necessary for high-density lipoprotein (HDL) formation in mammals. Thus, the mechanism of ABCA1 gene expression regulation in hepatocytes are of critical importance. Recently, we have found the insulin-dependent downregulation of other key player in the HDL formation-apolipoprotein A-I gene (J. Cell. Biochem., 2017, 118:382-396). Nothing is known about the role of insulin in the regulation of ABCA1 gene. Here we show for the first time that insulin decreases the mRNA and protein levels of ABCA1 in human hepatoma cell line HepG2. PI3K, p38, MEK1/2, JNK and mTORC1 signaling pathways are involved in the insulin-mediated downregulation of human ABCA1 gene. Transcription factors LXRα, LXRβ, FOXO1 and NF-κB are important contributors to this process, while FOXA2 does not regulate ABCA1 gene expression. Insulin causes the decrease in FOXO1, LXRα and LXRβ binding to ABCA1 promoter, which is likely the cause of the decrease in the gene expression. Interestingly, the murine ABCA1 gene seems to be not regulated by insulin in hepatocytes (in vitro and in vivo). We suggest that the reason for this discrepancy is the difference in the 5'-regulatory regions of human and murine ABCA1 genes.
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Affiliation(s)
- Vladimir S Shavva
- Department of Biochemistry, Institute of Experimental Medicine, St. Petersburg, Russia
| | - Anna V Babina
- Department of Biochemistry, Institute of Experimental Medicine, St. Petersburg, Russia
| | - Ekaterina V Nekrasova
- Department of Biochemistry, Institute of Experimental Medicine, St. Petersburg, Russia
| | - Alexey V Lisunov
- Department of Biochemistry, Institute of Experimental Medicine, St. Petersburg, Russia.,Department of Embryology, St. Petersburg State University, St. Petersburg, Russia
| | - Ella B Dizhe
- Department of Biochemistry, Institute of Experimental Medicine, St. Petersburg, Russia
| | - Galina N Oleinikova
- Department of Biochemistry, Institute of Experimental Medicine, St. Petersburg, Russia
| | - Sergey V Orlov
- Department of Biochemistry, Institute of Experimental Medicine, St. Petersburg, Russia. .,Department of Embryology, St. Petersburg State University, St. Petersburg, Russia.
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5
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Shavva VS, Babina AV, Nekrasova EV, Lisunov AV, Dizhe EB, Oleinikova GN, Orlov SV. Correction to: Insulin Downregulates the Expression of ATP-binding Cassette Transporter A-I in Human Hepatoma Cell Line HepG2 in a FOXO1 and LXR Dependent Manner. Cell Biochem Biophys 2023; 81:161. [PMID: 36342646 DOI: 10.1007/s12013-022-01115-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Vladimir S Shavva
- Department of Biochemistry, Institute of Experimental Medicine, St. Petersburg, Russia
| | - Anna V Babina
- Department of Biochemistry, Institute of Experimental Medicine, St. Petersburg, Russia
| | - Ekaterina V Nekrasova
- Department of Biochemistry, Institute of Experimental Medicine, St. Petersburg, Russia
| | - Alexey V Lisunov
- Department of Biochemistry, Institute of Experimental Medicine, St. Petersburg, Russia
- Department of Embryology, St. Petersburg State University, St. Petersburg, Russia
| | - Ella B Dizhe
- Department of Biochemistry, Institute of Experimental Medicine, St. Petersburg, Russia
| | - Galina N Oleinikova
- Department of Biochemistry, Institute of Experimental Medicine, St. Petersburg, Russia
| | - Sergey V Orlov
- Department of Biochemistry, Institute of Experimental Medicine, St. Petersburg, Russia.
- Department of Embryology, St. Petersburg State University, St. Petersburg, Russia.
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6
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Tanyanskiy DA, Shavva VS, Dizhe EB, Oleinikova GN, Lizunov AV, Nekrasova EV, Mogilenko DA, Larionova EE, Orlov SV, Denisenko AD. Adiponectin Stimulates Apolipoprotein A-1 Gene Expression in HepG2 Cells via AMPK, PPARα, and LXRs Signaling Mechanisms. Biochemistry (Mosc) 2022; 87:1252-1259. [PMID: 36509728 DOI: 10.1134/s0006297922110049] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Adiponectin is an adipose tissue hormone, participating in energy metabolism and involved in atherogenesis. Previously, it was found that adiponectin increases expression of the APOA1 (apolipoprotein A-1) gene in hepatocytes, but the mechanisms of this effect remained unexplored. Our aim was to investigate the role of adiponectin receptors AdipoR1/R2, AMP-activated protein kinase (AMPK), nuclear peroxisome proliferator-activated receptor alpha (PPARα) and liver X receptors (LXRs) in mediating the action of adiponectin on hepatic APOA1 expression in human hepatoma HepG2 cells. The level of APOA1 expression was determined by RT-qPCR and ELISA. We showed that the siRNA-mediated knockdown of genes coding for AdipoR1, AdipoR2, AMPK, PPARα, and LXRα and β prevented adiponectin-induced APOA1 expression in HepG2 cells and demonstrated that interaction of PPARα and LXRs with the APOA1 gene hepatic enhancer is important for the adiponectin-dependent APOA1 transcription. The results of this study point out to the involvement of both types of adiponectin receptors, AMPK, PPARα, and LXRs in the adiponectin-dependent upregulation of the APOA1 expression.
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Affiliation(s)
- Dmitry A Tanyanskiy
- Department of Biochemistry, Institute of Experimental Medicine, St. Petersburg, 197376, Russia. .,Department of Fundamental Problems of Medicine and Medical Technologies, St. Petersburg State University, St. Petersburg, 199034, Russia
| | - Vladimir S Shavva
- Department of Biochemistry, Institute of Experimental Medicine, St. Petersburg, 197376, Russia
| | - Ella B Dizhe
- Department of Biochemistry, Institute of Experimental Medicine, St. Petersburg, 197376, Russia
| | - Galina N Oleinikova
- Department of Biochemistry, Institute of Experimental Medicine, St. Petersburg, 197376, Russia
| | - Alexey V Lizunov
- Department of Biochemistry, Institute of Experimental Medicine, St. Petersburg, 197376, Russia.,Department of Embryology, St. Petersburg State University, St. Petersburg, 199034, Russia
| | - Ekaterina V Nekrasova
- Department of Biochemistry, Institute of Experimental Medicine, St. Petersburg, 197376, Russia
| | - Denis A Mogilenko
- Department of Biochemistry, Institute of Experimental Medicine, St. Petersburg, 197376, Russia
| | - Ekaterina E Larionova
- Department of Biochemistry, Institute of Experimental Medicine, St. Petersburg, 197376, Russia
| | - Sergey V Orlov
- Department of Biochemistry, Institute of Experimental Medicine, St. Petersburg, 197376, Russia.,Department of Embryology, St. Petersburg State University, St. Petersburg, 199034, Russia
| | - Alexander D Denisenko
- Department of Biochemistry, Institute of Experimental Medicine, St. Petersburg, 197376, Russia.,Department of Fundamental Problems of Medicine and Medical Technologies, St. Petersburg State University, St. Petersburg, 199034, Russia
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Caravaca AS, Gallina AL, Tarnawski L, Shavva VS, Colas RA, Dalli J, Malin SG, Hult H, Arnardottir H, Olofsson PS. Vagus nerve stimulation promotes resolution of inflammation by a mechanism that involves Alox15 and requires the α7nAChR subunit. Proc Natl Acad Sci U S A 2022; 119:e2023285119. [PMID: 35622894 PMCID: PMC9295760 DOI: 10.1073/pnas.2023285119] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 02/09/2022] [Indexed: 12/31/2022] Open
Abstract
Nonresolving inflammation underlies a range of chronic inflammatory diseases, and therapeutic acceleration of resolution of inflammation may improve outcomes. Neural reflexes regulate the intensity of inflammation (for example, through signals in the vagus nerve), but whether activation of the vagus nerve promotes the resolution of inflammation in vivo has been unknown. To investigate this, mice were subjected to electrical vagus nerve stimulation (VNS) or sham surgery at the cervical level followed by zymosan-induced peritonitis. The duration of inflammation resolution was significantly reduced and efferocytosis was significantly increased in mice treated with VNS as compared with sham. Lipid mediator (LM) metabololipidomics revealed that mice treated with VNS had higher levels of specialized proresolving mediators (SPMs), particularly from the omega-3 docosahexaenoic (DHA) and docosapentaenoic (n-3 DPA) metabolomes, in peritoneal exudates. VNS also shifted the ratio between proinflammatory and proresolving LMs toward a proresolving profile, but this effect by VNS was inverted in mice deficient in 12/15-lipoxgenase (Alox15), a key enzyme in this SPM biosynthesis. The significant VNS-mediated reduction of neutrophil numbers in peritoneal exudates was absent in mice deficient in the cholinergic α7-nicotinic acetylcholine receptor subunit (α7nAChR), an essential component of the inflammatory reflex. Thus, VNS increased local levels of SPM and accelerated resolution of inflammation in zymosan-induced peritonitis by a mechanism that involves Alox15 and requires the α7nAChR.
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Affiliation(s)
- April S. Caravaca
- Laboratory of Immunobiology, Division of Cardiovascular Medicine, Department of Medicine, Solna, Karolinska Institutet, Stockholm, 171 76, Sweden
- Stockholm Center for Bioelectronic Medicine, MedTechLabs, Karolinska University Hospital, Solna, 171 76, Sweden
| | - Alessandro L. Gallina
- Laboratory of Immunobiology, Division of Cardiovascular Medicine, Department of Medicine, Solna, Karolinska Institutet, Stockholm, 171 76, Sweden
- Stockholm Center for Bioelectronic Medicine, MedTechLabs, Karolinska University Hospital, Solna, 171 76, Sweden
| | - Laura Tarnawski
- Laboratory of Immunobiology, Division of Cardiovascular Medicine, Department of Medicine, Solna, Karolinska Institutet, Stockholm, 171 76, Sweden
- Stockholm Center for Bioelectronic Medicine, MedTechLabs, Karolinska University Hospital, Solna, 171 76, Sweden
| | - Vladimir S. Shavva
- Laboratory of Immunobiology, Division of Cardiovascular Medicine, Department of Medicine, Solna, Karolinska Institutet, Stockholm, 171 76, Sweden
| | - Romain A. Colas
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, EC1M 6BQ, United Kingdom
| | - Jesmond Dalli
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, EC1M 6BQ, United Kingdom
| | - Stephen G. Malin
- Laboratory of Immunobiology, Division of Cardiovascular Medicine, Department of Medicine, Solna, Karolinska Institutet, Stockholm, 171 76, Sweden
| | - Henrik Hult
- Stockholm Center for Bioelectronic Medicine, MedTechLabs, Karolinska University Hospital, Solna, 171 76, Sweden
- Department of Mathematics, KTH Royal Institute of Technology, Stockholm, 114 28, Sweden
| | - Hildur Arnardottir
- Laboratory of Immunobiology, Division of Cardiovascular Medicine, Department of Medicine, Solna, Karolinska Institutet, Stockholm, 171 76, Sweden
| | - Peder S. Olofsson
- Laboratory of Immunobiology, Division of Cardiovascular Medicine, Department of Medicine, Solna, Karolinska Institutet, Stockholm, 171 76, Sweden
- Stockholm Center for Bioelectronic Medicine, MedTechLabs, Karolinska University Hospital, Solna, 171 76, Sweden
- Institute of Bioelectronic Medicine, Feinstein Institutes for Medical Research, Manhasset, New York, 11030
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8
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Mogilenko DA, Danko K, Larionova EE, Shavva VS, Kudriavtsev IV, Nekrasova EV, Burnusuz AV, Gorbunov NP, Trofimov AV, Zhakhov AV, Ivanov IA, Orlov SV. Differentiation of human macrophages with anaphylatoxin C3a impairs alternative M2 polarization and decreases lipopolysaccharide‐induced cytokine secretion. Immunol Cell Biol 2022; 100:186-204. [DOI: 10.1111/imcb.12534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 01/06/2022] [Accepted: 02/07/2022] [Indexed: 11/28/2022]
Affiliation(s)
- Denis A Mogilenko
- Department of Biochemistry Institute of Experimental Medicine St. Petersburg Russia
- Department of Embryology St. Petersburg State University St. Petersburg Russia
| | - Katerina Danko
- Department of Biochemistry Institute of Experimental Medicine St. Petersburg Russia
- Department of Cytology and Histology St. Petersburg State University St. Petersburg Russia
| | | | - Vladimir S Shavva
- Department of Biochemistry Institute of Experimental Medicine St. Petersburg Russia
| | - Igor V Kudriavtsev
- Department of Cytology and Histology St. Petersburg State University St. Petersburg Russia
- Department of Immunology Institute of Experimental Medicine St. Petersburg Russia
| | | | - Alexandra V Burnusuz
- Department of Biochemistry Institute of Experimental Medicine St. Petersburg Russia
- Department of Cytology and Histology St. Petersburg State University St. Petersburg Russia
- Department of Immunology Institute of Experimental Medicine St. Petersburg Russia
| | - Nikolay P Gorbunov
- The Research Institute of Highly Pure Biopreparations St. Petersburg Russia
| | | | | | | | - Sergey V Orlov
- Department of Biochemistry Institute of Experimental Medicine St. Petersburg Russia
- Department of Embryology St. Petersburg State University St. Petersburg Russia
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9
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Nekrasova EV, Larionova EE, Danko K, Kuzmina DO, Shavva VS, Kudriavtsev IV, Orlov SV. Regulation of Apolipoprotein A-I Gene Expression in Human Macrophages by Oxidized Low-Density Lipoprotein. Biochemistry (Mosc) 2021; 86:1201-1213. [PMID: 34903152 DOI: 10.1134/s0006297921100047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 07/18/2021] [Accepted: 07/23/2021] [Indexed: 06/14/2023]
Abstract
Apolipoprotein A-I (ApoA-I) is a key component of reverse cholesterol transport in humans. In the previous studies, we demonstrated expression of the apoA-I gene in human monocytes and macrophages; however, little is known on the regulation of the apoA-I expression in macrophages during the uptake of modified low-density lipoprotein (LDL), which is one of the key processes in the early stages of atherogenesis leading to formation of foam cells. Here, we demonstrate a complex nature of the apoA-I regulation in human macrophages during the uptake of oxidized LDL (oxLDL). Incubation of macrophages with oxLDL induced expression of the apoA-I gene within the first 24 hours, but suppressed it after 48 h. Both effects depended on the interaction of oxLDL with the TLR4 receptor, rather than on the oxLDL uptake by the macrophages. The oxLDL-mediated downregulation of the apoA-I gene depended on the ERK1/2 and JNK cascades, as well as on the NF-κB cascade.
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Affiliation(s)
| | | | - Katerina Danko
- St. Petersburg State University, St. Petersburg, 199034, Russia
| | - Darya O Kuzmina
- St. Petersburg State University, St. Petersburg, 199034, Russia
| | | | | | - Sergey V Orlov
- Institute of Experimental Medicine, St. Petersburg, 197376, Russia.
- St. Petersburg State University, St. Petersburg, 199034, Russia
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10
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Tanyanskiy DA, Trulioff AS, Ageeva EV, Nikitin AA, Shavva VS, Orlov SV. [The Influence of Adiponectin on Production of Apolipoproteins A-l and E by Human Macrophages]. Mol Biol (Mosk) 2021; 55:697-704. [PMID: 34432787 DOI: 10.31857/s0026898421040121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 02/16/2021] [Indexed: 11/24/2022]
Abstract
Adiponectin is an adipose tissue hormone affecting energy and lipoprotein metabolism and modulating inflammatory responses. However, the role of this adipokine in atherogenesis remains poorly understood. The aim of this study was to investigate the effect of adiponectin on the production of apolipoproteins (apo) A-l and E by human macrophages (MP). The study was conducted on macrophage-like cells of the THP-1 cell line of two differentiation terms, 3 and 5 days (3d and 5d). Adiponectin (10 μg/mL) stimulated the expression of apoA-1 gene at the mRNA level in 5d MP, but not in 3d MP. The level of apoE mRNA in MP under the action of adiponectin was not affected. Adiponectin suppressed macrophage TNF gene expression, while it induced the expression of IL-10 gene in 5d MP. The secreted levels of apoA-1 and apoE proteins under the action of adiponectin in macrophages of both periods of differentiation remained unchanged, while the level of the surface apoA-1 protein in 5d MP was decreasing. Incubation of 5d MP with the PPARα nuclear receptor antagonist MK-886 or with the nuclear receptor LXR agonist TO-901317 resulted in cancellation of the stimulating effect of adiponectin on apoA-1 gene expression. These data indicate that adiponectin, in addition to its anti-inflammatory action, has a modulating effect on production of apoA-1 by macrophages. The latter is probably one of the mechanisms of the influence of this adipokine on atherogenesis.
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Affiliation(s)
- D A Tanyanskiy
- Institute of Experimental Medicine, St. Petersburg, 197376 Russia.,
| | - A S Trulioff
- Institute of Experimental Medicine, St. Petersburg, 197376 Russia
| | - E V Ageeva
- Institute of Experimental Medicine, St. Petersburg, 197376 Russia
| | - A A Nikitin
- Institute of Experimental Medicine, St. Petersburg, 197376 Russia
| | - V S Shavva
- Institute of Experimental Medicine, St. Petersburg, 197376 Russia
| | - S V Orlov
- Institute of Experimental Medicine, St. Petersburg, 197376 Russia.,St. Petersburg State University, St. Petersburg, 199034 Russia
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11
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Gallina AL, Rykaczewska U, Wirka RC, Caravaca AS, Shavva VS, Youness M, Karadimou G, Lengquist M, Razuvaev A, Paulsson-Berne G, Quertermous T, Gisterå A, Malin SG, Tarnawski L, Matic L, Olofsson PS. AMPA-Type Glutamate Receptors Associated With Vascular Smooth Muscle Cell Subpopulations in Atherosclerosis and Vascular Injury. Front Cardiovasc Med 2021; 8:655869. [PMID: 33959644 PMCID: PMC8093397 DOI: 10.3389/fcvm.2021.655869] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 03/11/2021] [Indexed: 12/22/2022] Open
Abstract
Objectives and Aims: Vascular smooth muscle cells (VSMCs) are key constituents of both normal arteries and atherosclerotic plaques. They have an ability to adapt to changes in the local environment by undergoing phenotypic modulation. An improved understanding of the mechanisms that regulate VSMC phenotypic changes may provide insights that suggest new therapeutic targets in treatment of cardiovascular disease (CVD). The amino-acid glutamate has been associated with CVD risk and VSMCs metabolism in experimental models, and glutamate receptors regulate VSMC biology and promote pulmonary vascular remodeling. However, glutamate-signaling in human atherosclerosis has not been explored. Methods and Results: We identified glutamate receptors and glutamate metabolism-related enzymes in VSMCs from human atherosclerotic lesions, as determined by single cell RNA sequencing and microarray analysis. Expression of the receptor subunits glutamate receptor, ionotropic, α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic (AMPA)-type subunit 1 (GRIA1) and 2 (GRIA2) was restricted to cells of mesenchymal origin, primarily VSMCs, as confirmed by immunostaining. In a rat model of arterial injury and repair, changes of GRIA1 and GRIA2 mRNA level were most pronounced at time points associated with VSMC proliferation, migration, and phenotypic modulation. In vitro, human carotid artery SMCs expressed GRIA1, and selective AMPA-type receptor blocking inhibited expression of typical contractile markers and promoted pathways associated with VSMC phenotypic modulation. In our biobank of human carotid endarterectomies, low expression of AMPA-type receptor subunits was associated with higher content of inflammatory cells and a higher frequency of adverse clinical events such as stroke. Conclusion: AMPA-type glutamate receptors are expressed in VSMCs and are associated with phenotypic modulation. Patients suffering from adverse clinical events showed significantly lower mRNA level of GRIA1 and GRIA2 in their atherosclerotic lesions compared to asymptomatic patients. These results warrant further mapping of neurotransmitter signaling in the pathogenesis of human atherosclerosis.
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Affiliation(s)
- Alessandro L Gallina
- Laboratory of Immunobiology, Center for Bioelectronic Medicine, Department of Medicine, Center for Molecular Medicine, Karolinska Institute, Stockholm, Sweden
| | - Urszula Rykaczewska
- Vascular Surgery, Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
| | - Robert C Wirka
- Division of Cardiology, University of North Carolina School of Medicine, Chapel Hill, NC, United States
- Department of Cell Biology and Physiology, University of North Carolina, Chapel Hill, NC, United States
- McAllister Heart Institute, University of North Carolina, Chapel Hill, NC, United States
| | - April S Caravaca
- Laboratory of Immunobiology, Center for Bioelectronic Medicine, Department of Medicine, Center for Molecular Medicine, Karolinska Institute, Stockholm, Sweden
| | - Vladimir S Shavva
- Laboratory of Immunobiology, Center for Bioelectronic Medicine, Department of Medicine, Center for Molecular Medicine, Karolinska Institute, Stockholm, Sweden
| | - Mohamad Youness
- Laboratory of Immunobiology, Center for Bioelectronic Medicine, Department of Medicine, Center for Molecular Medicine, Karolinska Institute, Stockholm, Sweden
- Department of Cardiovascular Sciences, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Glykeria Karadimou
- Laboratory of Immunobiology, Center for Bioelectronic Medicine, Department of Medicine, Center for Molecular Medicine, Karolinska Institute, Stockholm, Sweden
| | - Mariette Lengquist
- Vascular Surgery, Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
| | - Anton Razuvaev
- Vascular Surgery, Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
| | - Gabrielle Paulsson-Berne
- Laboratory of Immunobiology, Center for Bioelectronic Medicine, Department of Medicine, Center for Molecular Medicine, Karolinska Institute, Stockholm, Sweden
| | - Thomas Quertermous
- Division of Cardiovascular Medicine and Cardiovascular Institute, School of Medicine, Stanford University, California, CA, United States
| | - Anton Gisterå
- Laboratory of Immunobiology, Center for Bioelectronic Medicine, Department of Medicine, Center for Molecular Medicine, Karolinska Institute, Stockholm, Sweden
| | - Stephen G Malin
- Laboratory of Immunobiology, Center for Bioelectronic Medicine, Department of Medicine, Center for Molecular Medicine, Karolinska Institute, Stockholm, Sweden
| | - Laura Tarnawski
- Laboratory of Immunobiology, Center for Bioelectronic Medicine, Department of Medicine, Center for Molecular Medicine, Karolinska Institute, Stockholm, Sweden
| | - Ljubica Matic
- Vascular Surgery, Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
| | - Peder S Olofsson
- Laboratory of Immunobiology, Center for Bioelectronic Medicine, Department of Medicine, Center for Molecular Medicine, Karolinska Institute, Stockholm, Sweden
- Institute of Bioelectronic Medicine, Feinstein Institutes for Medical Research, Manhasset, NY, United States
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12
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Mogilenko DA, Shavva VS, Dizhe EB, Orlov SV. [Characterization of Distal and Proximal Alternative Promoters of the Human ApoA-I Gene]. Mol Biol (Mosk) 2019; 53:485-496. [PMID: 31184614 DOI: 10.1134/s0026898419030121] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Accepted: 12/29/2018] [Indexed: 11/22/2022]
Abstract
Human apolipoprotein A-I (ApoA-I) is a major structural and functional protein component of high-density lipoprotein (HDL). ApoA-I constitutes ~75% of the protein content of HDL. The main sites of ApoA-I synthesis in humans are the liver and the small intestine. The mechanisms that govern tissue-specific apoA-I transcription in tissues and organs other than the liver and the small intestine are poorly understood. It is known that the human apoA-I has two additional promoters, the proximal and the distal one. In this work these two alternative apoA-I promoters are characterized, their transcription start sites are mapped and their competition for apoA-Itranscription is demonstrated; the role of the alternative promoters in apoA-I expression in human cells and tissues other than hepatocytes and enterocytes is discussed.
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Affiliation(s)
- D A Mogilenko
- Institute of Experimental Medicine, St. Petersburg, 197376 Russia.,St. Petersburg State University, St. Petersburg, 199034 Russia.,Universite de Lille, Inserm, Institut Pasteur de Lille, U1011-EGID, Lille, 59000 France
| | - V S Shavva
- Institute of Experimental Medicine, St. Petersburg, 197376 Russia
| | - E B Dizhe
- Institute of Experimental Medicine, St. Petersburg, 197376 Russia
| | - S V Orlov
- Institute of Experimental Medicine, St. Petersburg, 197376 Russia.,St. Petersburg State University, St. Petersburg, 199034 Russia.,
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13
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Shavva VS, Bogomolova AM, Efremov AM, Trofimov AN, Nikitin AA, Babina AV, Nekrasova EV, Dizhe EB, Oleinikova GN, Missyul BV, Orlov SV. Insulin downregulates C3 gene expression in human HepG2 cells through activation of PPARγ. Eur J Cell Biol 2018; 97:204-215. [DOI: 10.1016/j.ejcb.2018.03.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 03/07/2018] [Accepted: 03/08/2018] [Indexed: 01/31/2023] Open
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14
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Shavva VS, Bogomolova AM, Nikitin AA, Dizhe EB, Oleinikova GN, Lapikov IA, Tanyanskiy DA, Perevozchikov AP, Orlov SV. FOXO1 and LXRα downregulate the apolipoprotein A-I gene expression during hydrogen peroxide-induced oxidative stress in HepG2 cells. Cell Stress Chaperones 2017; 22:123-134. [PMID: 27896567 PMCID: PMC5225066 DOI: 10.1007/s12192-016-0749-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 11/14/2016] [Accepted: 11/15/2016] [Indexed: 12/17/2022] Open
Abstract
Reactive oxygen species damage various cell components including DNA, proteins, and lipids, and these impairments could be a reason for severe human diseases including atherosclerosis. Forkhead box O1 (FOXO1), an important metabolic transcription factor, upregulates antioxidant and proapoptotic genes during oxidative stress. Apolipoprotein A-I (ApoA-I) forms high density lipoprotein (HDL) particles that are responsible for cholesterol transfer from peripheral tissues to liver for removal in bile in vertebrates. The main sources for plasma ApoA-I in mammals are liver and jejunum. Hepatic apoA-I transcription depends on a multitude of metabolic transcription factors. We demonstrate that ApoA-I synthesis and secretion are decreased during H2O2-induced oxidative stress in human hepatoma cell line HepG2. Here, we first show that FOXO1 binds to site B of apoA-I hepatic enhancer and downregulates apoA-I gene activity in HepG2 cells. Moreover, FOXO1 and LXRα transcription factors participate in H2O2-triggered downregulation of apoA-I gene together with Src, JNK, p38, and AMPK kinase cascades. Mutations of sites B or C as well as the administration of siRNAs against FOXO1 or LXRα to HepG2 cells abolished the hydrogen peroxide-mediated suppression of apoA-I gene.
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Affiliation(s)
- Vladimir S Shavva
- Department of Biochemistry, Institute of Experimental Medicine, Russian Academy of Medical Sciences, Acad. Pavlov St., 12, St. Petersburg, 197376, Russia.
- Department of Embryology, St. Petersburg State University, St. Petersburg, Russia.
| | | | - Artemy A Nikitin
- Department of Biochemistry, Institute of Experimental Medicine, Russian Academy of Medical Sciences, Acad. Pavlov St., 12, St. Petersburg, 197376, Russia
- Department of Biochemistry, St. Petersburg State University, St. Petersburg, Russia
| | - Ella B Dizhe
- Department of Biochemistry, Institute of Experimental Medicine, Russian Academy of Medical Sciences, Acad. Pavlov St., 12, St. Petersburg, 197376, Russia
| | - Galina N Oleinikova
- Department of Biochemistry, Institute of Experimental Medicine, Russian Academy of Medical Sciences, Acad. Pavlov St., 12, St. Petersburg, 197376, Russia
| | - Ivan A Lapikov
- Department of Embryology, St. Petersburg State University, St. Petersburg, Russia
| | - Dmitry A Tanyanskiy
- Department of Biochemistry, Institute of Experimental Medicine, Russian Academy of Medical Sciences, Acad. Pavlov St., 12, St. Petersburg, 197376, Russia
- Department of Fundamental Medicine and Medical Technologies, St. Petersburg State University, St. Petersburg, Russia
| | - Andrej P Perevozchikov
- Department of Biochemistry, Institute of Experimental Medicine, Russian Academy of Medical Sciences, Acad. Pavlov St., 12, St. Petersburg, 197376, Russia
- Department of Embryology, St. Petersburg State University, St. Petersburg, Russia
| | - Sergey V Orlov
- Department of Biochemistry, Institute of Experimental Medicine, Russian Academy of Medical Sciences, Acad. Pavlov St., 12, St. Petersburg, 197376, Russia.
- Department of Embryology, St. Petersburg State University, St. Petersburg, Russia.
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15
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Shavva VS, Bogomolova AM, Nikitin AA, Dizhe EB, Tanyanskiy DA, Efremov AM, Oleinikova GN, Perevozchikov AP, Orlov SV. Insulin-Mediated Downregulation of Apolipoprotein A-I Gene in Human Hepatoma Cell Line HepG2: The Role of Interaction Between FOXO1 and LXRβ Transcription Factors. J Cell Biochem 2016; 118:382-396. [PMID: 27404023 DOI: 10.1002/jcb.25651] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Accepted: 07/11/2016] [Indexed: 12/22/2022]
Abstract
Apolipoprotein A-I (ApoA-I) is a key component of high density lipoproteins which possess anti-atherosclerotic and anti-inflammatory properties. Insulin is a crucial mediator of the glucose and lipid metabolism that has been implicated in atherosclerotic and inflammatory processes. Important mediators of insulin signaling such as Liver X Receptors (LXRs) and Forkhead Box A2 (FOXA2) are known to regulate apoA-I expression in liver. Forkhead Box O1 (FOXO1) is a well-known target of insulin signaling and a key mediator of oxidative stress response. Low doses of insulin were shown to activate apoA-I expression in human hepatoma HepG2 cells. However, the detailed mechanisms for these processes are still unknown. We studied the possible involvement of FOXO1, FOXA2, LXRα, and LXRβ transcription factors in the insulin-mediated regulation of apoA-I expression. Treatment of HepG2 cells with high doses of insulin (48 h, 100 nM) suppresses apoA-I gene expression. siRNAs against FOXO1, FOXA2, LXRβ, or LXRα abrogated this effect. FOXO1 forms a complex with LXRβ and insulin treatment impairs FOXO1/LXRβ complex binding to hepatic enhancer and triggers its nuclear export. Insulin as well as LXR ligand TO901317 enhance the interaction between FOXA2, LXRα, and hepatic enhancer. These data suggest that high doses of insulin downregulate apoA-I gene expression in HepG2 cells through redistribution of FOXO1/LXRβ complex, FOXA2, and LXRα on hepatic enhancer of apoA-I gene. J. Cell. Biochem. 118: 382-396, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Vladimir S Shavva
- Department of Biochemistry, Institute of Experimental Medicine, Russian Academy of Medical Sciences, St. Petersburg, Russia.,Department of Embryology, St. Petersburg State University, St. Petersburg, Russia
| | | | - Artemy A Nikitin
- Department of Biochemistry, Institute of Experimental Medicine, Russian Academy of Medical Sciences, St. Petersburg, Russia.,Department of Biochemistry, St. Petersburg State University, St. Petersburg, Russia
| | - Ella B Dizhe
- Department of Biochemistry, Institute of Experimental Medicine, Russian Academy of Medical Sciences, St. Petersburg, Russia
| | - Dmitry A Tanyanskiy
- Department of Biochemistry, Institute of Experimental Medicine, Russian Academy of Medical Sciences, St. Petersburg, Russia.,Department of Fundamental Medicine and Medical Technologies, St. Petersburg State University, St. Petersburg, Russia
| | - Alexander M Efremov
- Department of Biochemistry, Institute of Experimental Medicine, Russian Academy of Medical Sciences, St. Petersburg, Russia.,Department of Embryology, St. Petersburg State University, St. Petersburg, Russia
| | - Galina N Oleinikova
- Department of Biochemistry, Institute of Experimental Medicine, Russian Academy of Medical Sciences, St. Petersburg, Russia
| | - Andrej P Perevozchikov
- Department of Biochemistry, Institute of Experimental Medicine, Russian Academy of Medical Sciences, St. Petersburg, Russia.,Department of Embryology, St. Petersburg State University, St. Petersburg, Russia
| | - Sergey V Orlov
- Department of Biochemistry, Institute of Experimental Medicine, Russian Academy of Medical Sciences, St. Petersburg, Russia.,Department of Embryology, St. Petersburg State University, St. Petersburg, Russia
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16
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Shavva VS, Mogilenko DA, Bogomolova AM, Nikitin AA, Dizhe EB, Efremov AM, Oleinikova GN, Perevozchikov AP, Orlov SV. PPARγ Represses Apolipoprotein A-I Gene but Impedes TNFα-Mediated ApoA-I Downregulation in HepG2 Cells. J Cell Biochem 2016; 117:2010-22. [DOI: 10.1002/jcb.25498] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Accepted: 01/25/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Vladimir S. Shavva
- Department of Biochemistry; Institute of Experimental Medicine; Russian Academy of Medical Sciences; St. Petersburg Russia
- Department of Embryology; St. Petersburg State University; St. Petersburg Russia
| | - Denis A. Mogilenko
- Department of Biochemistry; Institute of Experimental Medicine; Russian Academy of Medical Sciences; St. Petersburg Russia
- Department of Embryology; St. Petersburg State University; St. Petersburg Russia
| | | | - Artemy A. Nikitin
- Department of Biochemistry; Institute of Experimental Medicine; Russian Academy of Medical Sciences; St. Petersburg Russia
- Department of Biochemistry; St. Petersburg State University; St. Petersburg Russia
| | - Ella B. Dizhe
- Department of Biochemistry; Institute of Experimental Medicine; Russian Academy of Medical Sciences; St. Petersburg Russia
| | - Alexander M. Efremov
- Department of Biochemistry; Institute of Experimental Medicine; Russian Academy of Medical Sciences; St. Petersburg Russia
- Department of Embryology; St. Petersburg State University; St. Petersburg Russia
| | - Galina N. Oleinikova
- Department of Biochemistry; Institute of Experimental Medicine; Russian Academy of Medical Sciences; St. Petersburg Russia
| | - Andrej P. Perevozchikov
- Department of Biochemistry; Institute of Experimental Medicine; Russian Academy of Medical Sciences; St. Petersburg Russia
- Department of Embryology; St. Petersburg State University; St. Petersburg Russia
| | - Sergey V. Orlov
- Department of Biochemistry; Institute of Experimental Medicine; Russian Academy of Medical Sciences; St. Petersburg Russia
- Department of Embryology; St. Petersburg State University; St. Petersburg Russia
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17
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Shavva VS, Mogilenko DA, Dizhe EB, Oleinikova GN, Perevozchikov AP, Orlov SV. Hepatic nuclear factor 4α positively regulates complement C3 expression and does not interfere with TNFα-mediated stimulation of C3 expression in HepG2 cells. Gene 2013; 524:187-92. [PMID: 23628799 DOI: 10.1016/j.gene.2013.04.036] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2012] [Revised: 04/15/2013] [Accepted: 04/16/2013] [Indexed: 10/26/2022]
Abstract
Complement C3 is involved in various protective and regulatory mechanisms of immune system. Recently it was established that C3 expression is regulated by nuclear receptors. Hepatic nuclear factor 4α (HNF4α) is a nuclear receptor critical for hepatic development and metabolism. We have shown that HNF4α is a positive regulator of C3 gene expression, realizing its effects through binding to two HNF4-response elements within the C3 promoter in HepG2 cells. TNFα is a well established positive regulator of C3 expression in hepatocytes during acute phase of inflammation. TNFα decreases the amount of HNF4α protein in HepG2 cells through NF-κB and MEK1/2 pathways thereby leading to a decrease in HNF4α bound to the C3 promoter. TNFα and HNF4α act in a synergetic way resulting in the potent activation of C3 transcription. These results suggest a novel mechanism of C3 regulation during acute phase response in HepG2 cells and display the mechanism of interaction of TNFα-induced pathways and HNF4α in transcriptional regulation of C3 gene.
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Affiliation(s)
- Vladimir S Shavva
- Department of Biochemistry, Institute of Experimental Medicine, Russian Academy of Medical Sciences, St. Petersburg 197376, Russia.
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18
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Mogilenko DA, Kudriavtsev IV, Shavva VS, Dizhe EB, Vilenskaya EG, Efremov AM, Perevozchikov AP, Orlov SV. Peroxisome proliferator-activated receptor α positively regulates complement C3 expression but inhibits tumor necrosis factor α-mediated activation of C3 gene in mammalian hepatic-derived cells. J Biol Chem 2012; 288:1726-38. [PMID: 23168409 DOI: 10.1074/jbc.m112.437525] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Complement C3 is a pivotal component of three cascades of complement activation. The liver is the main source of C3 in circulation and expression and secretion of C3 by hepatocytes is increased during acute inflammation. However, the mechanism of the regulation of the C3 gene in hepatocytes is not well elucidated. We showed that the C3 gene is the direct target for peroxisome proliferator-activated receptor α (PPARα) in human hepatoma HepG2 cells and mouse liver. Using PPARα siRNA and synthetic PPARα agonist WY-14643 and antagonist MK886 we showed that activation of PPARα results in up-regulation of C3 gene expression and protein secretion by HepG2 cells. The PPAR response element (PPRE), which is able to bind PPARα in vitro and in vivo, was found in the human C3 promoter. PPRE is conserved between human and mouse, and WY-14643 stimulates mouse C3 expression in the liver. TNFα increases C3 gene via NF-κB and, to a lesser extent, MEK1/2 signaling pathways, whereas TNFα-mediated stimulation of C3 protein secretion depends on activation of MEK1/2, p38, and JNK in HepG2 cells. Activation of PPARα abolishes TNFα-mediated up-regulation of C3 gene expression and protein secretion due to interference with NF-κB via PPRE-dependent mechanism in HepG2 cells. TNFα decreases PPARα protein content via NF-κB and MEK1/2 signaling pathways and inhibits PPARα binding with the human C3 promoter in HepG2 cells. These results suggest novel mechanism controlling C3 expression in hepatocytes during acute phase inflammation and demonstrate a crosstalk between PPARα and TNFα in the regulation of complement system.
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Affiliation(s)
- Denis A Mogilenko
- Department of Biochemistry, Institute of Experimental Medicine, Russian Academy of Medical Sciences, St. Petersburg 197376, Russia.
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19
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Mogilenko DA, Orlov SV, Trulioff AS, Ivanov AV, Nagumanov VK, Kudriavtsev IV, Shavva VS, Tanyanskiy DA, Perevozchikov AP. Endogenous apolipoprotein A-I stabilizes ATP-binding cassette transporter A1 and modulates Toll-like receptor 4 signaling in human macrophages. FASEB J 2012; 26:2019-30. [PMID: 22271762 DOI: 10.1096/fj.11-193946] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Apolipoprotein A-I (ApoA-I) is the main functional protein component of human high-density lipoproteins. ApoA-I shows various anti-inflammatory and atheroprotective properties toward macrophages; however, endogenous apoA-I expression has not been investigated in macrophages. We have shown that endogenous apoA-I gene is expressed in human macrophages at both mRNA and protein levels. Endogenous ApoA-I is localized in intracellular vesicles and at the external side of the plasma membrane in association with ATP-binding cassette transporter A1 (ABCA1) and lipid rafts in macrophages. We have shown that endogenous ApoA-I stabilizes ABCA1, moreover, down-regulation of ApoA-I by siRNA results in an increase of Toll-like receptor 4 (TLR4) mRNA and membrane surface protein expression, as well as an enhancement of bacterial lipopolysaccharide (LPS)-induced expression of tumor necrosis factor-α (TNF-α), interleukin 1β (IL-1β), and inducible nitric oxide synthase (NOS2) genes in human macrophages. TNF-α stimulates ApoA-I expression and secretion (1.2±0.2 vs. 4.3±0.9 ng/mg total protein) in macrophages. Obtained results suggest that endogenous ApoA-I has anti-inflammatory properties, presumably due to ABCA1 stabilization in macrophages; these results elucidate the cell type-specific mechanism of the TNF-α-mediated regulation of apoA-I gene expression in monocytes and macrophages.
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Affiliation(s)
- Denis A Mogilenko
- Institute of Experimental Medicine, Russian Academy of Medical Sciences, Department of Biochemistry, Acad. Pavlov St., 12, St. Petersburg, 197376, Russia.
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20
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Mogilenko DA, Kudriavtsev IV, Trulioff AS, Shavva VS, Dizhe EB, Missyul BV, Zhakhov AV, Ischenko AM, Perevozchikov AP, Orlov SV. Modified low density lipoprotein stimulates complement C3 expression and secretion via liver X receptor and Toll-like receptor 4 activation in human macrophages. J Biol Chem 2011; 287:5954-68. [PMID: 22194611 DOI: 10.1074/jbc.m111.289322] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Complement C3 is a pivotal component of three cascades of complement activation. C3 is expressed in human atherosclerotic lesions and is involved in atherogenesis. However, the mechanism of C3 accumulation in atherosclerotic lesions is not well elucidated. We show that acetylated low density lipoprotein and oxidized low density lipoprotein (oxLDL) increase C3 gene expression and protein secretion by human macrophages. Modified LDL (mLDL)-mediated activation of C3 expression mainly depends on liver X receptor (LXR) and partly on Toll-like receptor 4 (TLR4), whereas C3 secretion is increased due to TLR4 activation by mLDL. LXR agonist TO901317 stimulates C3 gene expression in human monocyte-macrophage cells but not in human hepatoma (HepG2) cells. We find LXR-responsive element inside of the promoter region of the human C3 gene, which binds to LXRβ in macrophages but not in HepG2 cells. We show that C3 expression and secretion is decreased in IL-4-treated (M2) and increased in IFNγ/LPS-stimulated (M1) human macrophages as compared with resting macrophages. LXR agonist TO901317 potentiates LPS-induced C3 gene expression and protein secretion in macrophages, whereas oxLDL differently modulates LPS-mediated regulation of C3 in M1 or M2 macrophages. Treatment of human macrophages with anaphylatoxin C3a results in stimulation of C3 transcription and secretion as well as increased oxLDL accumulation and augmented oxLDL-mediated up-regulation of the C3 gene. These data provide a novel mechanism of C3 gene regulation in macrophages and suggest new aspects of cross-talk between mLDL, C3, C3a, and TLR4 during development of atherosclerotic lesions.
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Affiliation(s)
- Denis A Mogilenko
- Department of Biochemistry, Institute of Experimental Medicine, Russian Academy of Medical Sciences, St. Petersburg 197376, Russia.
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Mogilenko DA, Shavva VS, Dizhe EB, Orlov SV, Perevozchikov AP. PPARγ activates ABCA1 gene transcription but reduces the level of ABCA1 protein in HepG2 cells. Biochem Biophys Res Commun 2010; 402:477-82. [PMID: 20951680 DOI: 10.1016/j.bbrc.2010.10.053] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2010] [Accepted: 10/12/2010] [Indexed: 01/25/2023]
Abstract
Synthesis of ABCA1 protein in liver is necessary for high-density lipoproteins (HDL) formation in mammals. Nuclear receptor PPARγ is known as activator of ABCA1 expression, but details of PPARγ-mediated regulation of ABCA1 at both transcriptional and post-transcriptional levels in hepatocytes have not still been well elucidated. In this study we have shown, that PPARγ activates ABCA1 gene transcription in human hepatoma cells HepG2 through increasing of LXRβ binding with promoter region of ABCA1 gene. Treatment of HepG2 cells with PPARγ agonist GW1929 leads to dissociation of LXRβ from ABCA1/LXRβ complex and to nuclear translocation of this nuclear receptor resulting in reduction of ABCA1 protein level 24h after treatment. Inhibition of protein kinases MEK1/2 abolishes PPARγ-mediated dissociation of LXRβ from ABCA1/LXRβ complex, but does not block PPARγ-dependent down-regulation of ABCA1 protein in HepG2 cells. These data suggest that PPARγ may be important for regulation of the level of hepatic ABCA1 protein and indicate the new interplays between PPARγ, LXRβ and MEK1/2 in regulation of ABCA1 mRNA and protein expression.
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Affiliation(s)
- Denis A Mogilenko
- Department of Biochemistry, Institute of Experimental Medicine, Russian Academy of Medical Sciences, 197376 St. Petersburg, Russia.
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Orlov SV, Mogilenko DA, Shavva VS, Dizhe EB, Ignatovich IA, Perevozchikov AP. Effect of TNFα on activities of different promoters of human apolipoprotein A-I gene. Biochem Biophys Res Commun 2010; 398:224-30. [DOI: 10.1016/j.bbrc.2010.06.064] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2010] [Accepted: 06/15/2010] [Indexed: 11/26/2022]
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Efremov AM, Buglaeva AO, Orlov SV, Burov SV, Ignatovich IA, Dizhe EB, Shavva VS, Perevozchikov AP. [Transfer of genetic constructions through the transplacental barrier into mice embryos]. Ontogenez 2010; 41:94-100. [PMID: 20429369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Genetic modification of mammalian embryos is an important way to model various changes in human development; also, it is an instrument for studying the functions of certain genes in mammals. Using our own experience in developing modes of delivery of genetic constructions to mammals in a nonviral way, we present here data on the delivery of a eukaryotic expression vector to mice embryos through the transplacental barrier with the use of hydrodynamic intravenous injections of DNA-hybrid peptide complexes to pregnant females. The peptide has a cationic part for interaction with DNA and includes a ligand structure towards receptors of the releasing factor of luteinizing hormone (RFLH, luliberin). Advantages of the suggested method are simplicity, economy, nonimmunogenicity for females, and the ability to multiply repeat the procedure. On the basis of the method, systemic gene delivery into tissues of mammalian embryos may be developed.
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Mogilenko DA, Dizhe EB, Shavva VS, Lapikov IA, Orlov SV, Perevozchikov AP. Role of the nuclear receptors HNF4 alpha, PPAR alpha, and LXRs in the TNF alpha-mediated inhibition of human apolipoprotein A-I gene expression in HepG2 cells. Biochemistry 2010; 48:11950-60. [PMID: 19883121 DOI: 10.1021/bi9015742] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The expression of the apolipoprotein A-I gene (apoA-I) in hepatocytes is repressed by pro-inflammatory cytokines such as IL-1beta and TNFalpha. In this work, we have demonstrated that treatment of HepG2 human hepatoma cells with chemical inhibitors for JNK, p38 protein kinases, and NFkappaB transcription factor abolishes the TNFalpha-mediated inhibition of human apoA-I gene expression in HepG2 cells. In addition, we have shown that TNFalpha decreases also the rate of secretion of apoA-I protein by HepG2 cells, and this effect depends on JNK and p38, but not on NFkappaB and MEK1/2 signaling pathways. The inhibitory effect of TNFalpha has been found to be mediated by the hepatic enhancer of the apoA-I gene. The decrease in the level of human apoA-I gene expression under the impact of TNFalpha appears to be partly mediated by the inhibition of HNF4alpha and PPARalpha gene expression. Treatment of HepG2 cells with PPARalpha antagonist (MK886) or LXR agonist (TO901317) abolishes the TNFalpha-mediated decrease in the level of apoA-I gene expression. PPARalpha agonist (WY-14643) abolishes the negative effect of TNFalpha on apoA-I gene expression in the case of simultaneous inhibition of MEK1/2, although neither inhibition of MEK1/2 nor addition of WY-14643 leads to the blocking of the TNFalpha-mediated decrease in the level of apoA-I gene expression individually. The ligand-dependent regulation of apoA-I gene expression by PPARalpha appears to be affected by the TNFalpha-mediated activation of MEK1/2 kinases, probably through PPARalpha phosphorylation. Treatment of HepG2 cells with PPARalpha and LXR synthetic agonists also blocks the inhibition of apoA-I protein secretion in HepG2 cells under the impact of TNFalpha. A chromatin immunoprecipitation assay demonstrates that TNFalpha leads to a 2-fold decrease in the level of PPARalpha binding with the apoA-I gene hepatic enhancer. At the same time, the level of LXRbeta binding with the apoA-I gene hepatic enhancer is increased 3-fold under the impact of TNFalpha. These results suggest that nuclear receptors HNF4alpha, PPARalpha, and LXRs are involved in the TNFalpha-mediated downregulation of human apoA-I gene expression and apoA-I protein secretion in HepG2 cells.
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Affiliation(s)
- Denis A Mogilenko
- Department of Biochemistry, Institute of Experimental Medicine, Russian Academy of Medical Sciences, 197376 St. Petersburg, Russia.
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