1
|
Nikfarjam S, Singh KK. DNA damage response signaling: A common link between cancer and cardiovascular diseases. Cancer Med 2023; 12:4380-4404. [PMID: 36156462 PMCID: PMC9972122 DOI: 10.1002/cam4.5274] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 07/10/2022] [Accepted: 07/19/2022] [Indexed: 11/10/2022] Open
Abstract
DNA damage response (DDR) signaling ensures genomic and proteomic homeostasis to maintain a healthy genome. Dysregulation either in the form of down- or upregulation in the DDR pathways correlates with various pathophysiological states, including cancer and cardiovascular diseases (CVDs). Impaired DDR is studied as a signature mechanism for cancer; however, it also plays a role in ischemia-reperfusion injury (IRI), inflammation, cardiovascular function, and aging, demonstrating a complex and intriguing relationship between cancer and pathophysiology of CVDs. Accordingly, there are increasing number of reports indicating higher incidences of CVDs in cancer patients. In the present review, we thoroughly discuss (1) different DDR pathways, (2) the functional cross talk among different DDR mechanisms, (3) the role of DDR in cancer, (4) the commonalities and differences of DDR between cancer and CVDs, (5) the role of DDR in pathophysiology of CVDs, (6) interventional strategies for targeting genomic instability in CVDs, and (7) future perspective.
Collapse
Affiliation(s)
- Sepideh Nikfarjam
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, Canada.,Department of Medical Biophysics, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, Canada
| | - Krishna K Singh
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, Canada.,Department of Medical Biophysics, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, Canada
| |
Collapse
|
2
|
Turk A, Kunej T. Shared Genetic Risk Factors Between Cancer and Cardiovascular Diseases. Front Cardiovasc Med 2022; 9:931917. [PMID: 35872888 PMCID: PMC9300967 DOI: 10.3389/fcvm.2022.931917] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 06/21/2022] [Indexed: 11/22/2022] Open
Abstract
Cancer and cardiovascular diseases (CVD) account for approximately 27.5 million deaths every year. While they share some common environmental risk factors, their shared genetic risk factors are not yet fully understood. The aim of the present study was to aggregate genetic risk factors associated with the comorbidity of cancer and CVDs. For this purpose, we: (1) created a catalog of genes associated with cancer and CVDs, (2) visualized retrieved data as a gene-disease network, and (3) performed a pathway enrichment analysis. We performed screening of PubMed database for literature reporting genetic risk factors in patients with both cancer and CVD. The gene-disease network was visualized using Cytoscape and the enrichment analysis was conducted using Enrichr software. We manually reviewed the 181 articles fitting the search criteria and included 13 articles in the study. Data visualization revealed a highly interconnected network containing a single subnetwork with 56 nodes and 146 edges. Genes in the network with the highest number of disease interactions were JAK2, TTN, TET2, and ATM. The pathway enrichment analysis revealed that genes included in the study were significantly enriched in DNA damage repair (DDR) pathways, such as homologous recombination. The role of DDR mechanisms in the development of CVDs has been studied in previously published research; however, additional functional studies are required to elucidate their contribution to the pathophysiology to CVDs.
Collapse
|
3
|
da Silva Neto Trajano LA, da Silva Sergio LP, de Oliveira DSL, Trajano ETL, Dos Santos Silva MA, de Paoli F, Mencalha AL, da Fonseca ADS. Low-power infrared laser modulates mRNA levels from genes of base excision repair and genomic stabilization in heart tissue from an experimental model of acute lung injury. Photochem Photobiol Sci 2022; 21:1299-1308. [PMID: 35426610 DOI: 10.1007/s43630-022-00221-3] [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: 10/17/2021] [Accepted: 03/28/2022] [Indexed: 11/28/2022]
Abstract
The aim of this study was to evaluate photobiomodulation effects on mRNA relative levels from genes of base excision repair and genomic stabilization in heart tissue from an experimental model of acute lung injury by sepsis. For experimental procedure, animals were randomly assigned to six main groups: (1) control group was animals treated with intraperitoneal saline solution; (2) LASER-10 was animals treated with intraperitoneal saline solution and exposed to an infrared laser at 10 J cm-2; (3) LASER-20 was animals treated with intraperitoneal saline solution and exposed to an infrared laser at 20 J cm-2; (4) acute lung injury (ALI) was animals treated with intraperitoneal LPS (10 mg kg-1); (5) ALI-LASER10 was animals treated with intraperitoneal LPS (10 mg kg-1) and, after 4 h, exposed to an infrared laser at 10 J cm-2 and (6) ALI-LASER20 was animals treated with intraperitoneal LPS (10 mg kg-1) and, after 4 h, exposed to an infrared laser at 20 J cm-2. Irradiation was performed only once and animal euthanasias for analysis of mRNA relative levels by RT-qPCR. Our results showed that there was a reduction of mRNA relative levels from ATM gene and an increase of mRNA relative levels from P53 gene in the heart of animals with ALI when compared to the control group. In addition, there was an increase of mRNA relative levels from OGG1 and APE1 gene in hearts from animals with ALI when compared to the control group. After irradiation, an increase of mRNA relative levels from ATM and OGG1 gene was observed at 20 J cm-2. In conclusion, low-power laser modulates the mRNA relative levels from genes of base excision repair and genomic stabilization in the experimental model of acute lung injury evaluated.
Collapse
Affiliation(s)
- Larissa Alexsandra da Silva Neto Trajano
- Mestrado Profissional em Diagnóstico em Medicina Veterinária, Pró Reitoria de Pesquisa e Pós Graduação, Universidade de Vassouras, Avenida Expedicionário Oswaldo de Almeida Ramos, 280, Vassouras, Rio de Janeiro, 27700000, Brazil. .,Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcântara Gomes, Universidade do Estado do Rio de Janeiro, Avenida 28 de Setembro, 87, fundos, Vila Isabel, Rio de Janeiro, 20551030, Brazil. .,Mestrado Profissional em Ciências aplicadas em Saúde, Universidade de Vassouras, Avenida Expedicionário Oswaldo de Almeida Ramos, 280, Vassouras, Rio de Janeiro, 27700000, Brazil.
| | - Luiz Philippe da Silva Sergio
- Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcântara Gomes, Universidade do Estado do Rio de Janeiro, Avenida 28 de Setembro, 87, fundos, Vila Isabel, Rio de Janeiro, 20551030, Brazil
| | - Diego Sá Leal de Oliveira
- Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcântara Gomes, Universidade do Estado do Rio de Janeiro, Avenida 28 de Setembro, 87, fundos, Vila Isabel, Rio de Janeiro, 20551030, Brazil
| | - Eduardo Tavares Lima Trajano
- Mestrado Profissional em Ciências aplicadas em Saúde, Universidade de Vassouras, Avenida Expedicionário Oswaldo de Almeida Ramos, 280, Vassouras, Rio de Janeiro, 27700000, Brazil
| | - Marco Aurélio Dos Santos Silva
- Mestrado Profissional em Ciências aplicadas em Saúde, Universidade de Vassouras, Avenida Expedicionário Oswaldo de Almeida Ramos, 280, Vassouras, Rio de Janeiro, 27700000, Brazil
| | - Flávia de Paoli
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Juiz de Fora, Rua José Lourenço Khelmer-s/n, Campus Universitário, São Pedro, Juiz de Fora, Minas Gerais, 36036900, Brazil
| | - André Luiz Mencalha
- Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcântara Gomes, Universidade do Estado do Rio de Janeiro, Avenida 28 de Setembro, 87, fundos, Vila Isabel, Rio de Janeiro, 20551030, Brazil
| | - Adenilson de Souza da Fonseca
- Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcântara Gomes, Universidade do Estado do Rio de Janeiro, Avenida 28 de Setembro, 87, fundos, Vila Isabel, Rio de Janeiro, 20551030, Brazil.,Departamento de Ciências Fisiológicas, Instituto Biomédico, Universidade Federal do Estado do Rio de Janeiro, Rua Frei Caneca, 94, Rio de Janeiro, 20211040, Brazil
| |
Collapse
|
4
|
Role of Oxidative DNA Damage and Repair in Atrial Fibrillation and Ischemic Heart Disease. Int J Mol Sci 2021; 22:ijms22083838. [PMID: 33917194 PMCID: PMC8068079 DOI: 10.3390/ijms22083838] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 03/31/2021] [Accepted: 04/02/2021] [Indexed: 02/07/2023] Open
Abstract
Atrial fibrillation (AF) and ischemic heart disease (IHD) represent the two most common clinical cardiac diseases, characterized by angina, arrhythmia, myocardial damage, and cardiac dysfunction, significantly contributing to cardiovascular morbidity and mortality and posing a heavy socio-economic burden on society worldwide. Current treatments of these two diseases are mainly symptomatic and lack efficacy. There is thus an urgent need to develop novel therapies based on the underlying pathophysiological mechanisms. Emerging evidence indicates that oxidative DNA damage might be a major underlying mechanism that promotes a variety of cardiac diseases, including AF and IHD. Antioxidants, nicotinamide adenine dinucleotide (NAD+) boosters, and enzymes involved in oxidative DNA repair processes have been shown to attenuate oxidative damage to DNA, making them potential therapeutic targets for AF and IHD. In this review, we first summarize the main molecular mechanisms responsible for oxidative DNA damage and repair both in nuclei and mitochondria, then describe the effects of oxidative DNA damage on the development of AF and IHD, and finally discuss potential targets for oxidative DNA repair-based therapeutic approaches for these two cardiac diseases.
Collapse
|
5
|
Olsen MB, Hildrestrand GA, Scheffler K, Vinge LE, Alfsnes K, Palibrk V, Wang J, Neurauter CG, Luna L, Johansen J, Øgaard JDS, Ohm IK, Slupphaug G, Kuśnierczyk A, Fiane AE, Brorson SH, Zhang L, Gullestad L, Louch WE, Iversen PO, Østlie I, Klungland A, Christensen G, Sjaastad I, Sætrom P, Yndestad A, Aukrust P, Bjørås M, Finsen AV. NEIL3-Dependent Regulation of Cardiac Fibroblast Proliferation Prevents Myocardial Rupture. Cell Rep 2017; 18:82-92. [PMID: 28052262 DOI: 10.1016/j.celrep.2016.12.009] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 10/06/2016] [Accepted: 12/01/2016] [Indexed: 12/15/2022] Open
Abstract
Myocardial infarction (MI) triggers a reparative response involving fibroblast proliferation and differentiation driving extracellular matrix modulation necessary to form a stabilizing scar. Recently, it was shown that a genetic variant of the base excision repair enzyme NEIL3 was associated with increased risk of MI in humans. Here, we report elevated myocardial NEIL3 expression in heart failure patients and marked myocardial upregulation of Neil3 after MI in mice, especially in a fibroblast-enriched cell fraction. Neil3-/- mice show increased mortality after MI caused by myocardial rupture. Genome-wide analysis of 5-methylcytosine (5mC) and 5-hydroxymethylcytosine (5hmC) reveals changes in the cardiac epigenome, including in genes related to the post-MI transcriptional response. Differentially methylated genes are enriched in pathways related to proliferation and myofibroblast differentiation. Accordingly, Neil3-/- ruptured hearts show increased proliferation of fibroblasts and myofibroblasts. We propose that NEIL3-dependent modulation of DNA methylation regulates cardiac fibroblast proliferation and thereby affects extracellular matrix modulation after MI.
Collapse
Affiliation(s)
- Maria B Olsen
- Research Institute of Internal Medicine, Oslo University Hospital and University of Oslo, 0424 Oslo, Norway; Center for Heart Failure Research, University of Oslo, 0317 Oslo, Norway; K.G. Jebsen Inflammation Research Centre, University of Oslo, 0317 Oslo, Norway
| | - Gunn A Hildrestrand
- Department of Microbiology, Oslo University Hospital and University of Oslo, 0424 Oslo, Norway
| | - Katja Scheffler
- Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, 7491 Trondheim, Norway
| | - Leif Erik Vinge
- Research Institute of Internal Medicine, Oslo University Hospital and University of Oslo, 0424 Oslo, Norway; Department of Cardiology, Oslo University Hospital and University of Oslo, 0424 Oslo, Norway; Center for Heart Failure Research, University of Oslo, 0317 Oslo, Norway
| | - Katrine Alfsnes
- Research Institute of Internal Medicine, Oslo University Hospital and University of Oslo, 0424 Oslo, Norway; Center for Heart Failure Research, University of Oslo, 0317 Oslo, Norway; K.G. Jebsen Inflammation Research Centre, University of Oslo, 0317 Oslo, Norway
| | - Vuk Palibrk
- Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, 7491 Trondheim, Norway
| | - Junbai Wang
- Department of Pathology, Oslo University Hospital and University of Oslo, 0424 Oslo, Norway
| | - Christine G Neurauter
- Department of Microbiology, Oslo University Hospital and University of Oslo, 0424 Oslo, Norway
| | - Luisa Luna
- Department of Microbiology, Oslo University Hospital and University of Oslo, 0424 Oslo, Norway
| | - Jostein Johansen
- Bioinformatics Core Facility-BioCore , Norwegian University of Science and Technology, 7491 Trondheim, Norway
| | - Jonas D S Øgaard
- Research Institute of Internal Medicine, Oslo University Hospital and University of Oslo, 0424 Oslo, Norway
| | - Ingrid K Ohm
- Research Institute of Internal Medicine, Oslo University Hospital and University of Oslo, 0424 Oslo, Norway; Center for Heart Failure Research, University of Oslo, 0317 Oslo, Norway
| | - Geir Slupphaug
- Proteomics and Metabolomics Core Facility-PROMEC, Norwegian University of Science and Technology, 7491 Trondheim, Norway; Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, 7491 Trondheim, Norway
| | - Anna Kuśnierczyk
- Proteomics and Metabolomics Core Facility-PROMEC, Norwegian University of Science and Technology, 7491 Trondheim, Norway; Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, 7491 Trondheim, Norway
| | - Arnt E Fiane
- Department of Cardiothoracic Surgery, Oslo University Hospital and University of Oslo, 0424 Oslo, Norway
| | - Sverre-Henning Brorson
- Department of Pathology, Oslo University Hospital and University of Oslo, 0424 Oslo, Norway
| | - Lili Zhang
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, 0424 Oslo, Norway
| | - Lars Gullestad
- Research Institute of Internal Medicine, Oslo University Hospital and University of Oslo, 0424 Oslo, Norway; Department of Cardiology, Oslo University Hospital and University of Oslo, 0424 Oslo, Norway; Center for Heart Failure Research, University of Oslo, 0317 Oslo, Norway
| | - William E Louch
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, 0424 Oslo, Norway; Center for Heart Failure Research, University of Oslo, 0317 Oslo, Norway
| | - Per Ole Iversen
- Department of Haematology, Oslo University Hospital and University of Oslo, 0424 Oslo, Norway; Department of Nutrition, University of Oslo, 0317 Oslo, Norway
| | - Ingunn Østlie
- Department of Pathology, Oslo University Hospital and University of Oslo, 0424 Oslo, Norway
| | - Arne Klungland
- Department of Microbiology, Oslo University Hospital and University of Oslo, 0424 Oslo, Norway
| | - Geir Christensen
- Department of Cardiology, Oslo University Hospital and University of Oslo, 0424 Oslo, Norway; Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, 0424 Oslo, Norway; Center for Heart Failure Research, University of Oslo, 0317 Oslo, Norway
| | - Ivar Sjaastad
- Department of Cardiology, Oslo University Hospital and University of Oslo, 0424 Oslo, Norway; Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, 0424 Oslo, Norway; Center for Heart Failure Research, University of Oslo, 0317 Oslo, Norway
| | - Pål Sætrom
- Bioinformatics Core Facility-BioCore , Norwegian University of Science and Technology, 7491 Trondheim, Norway; Department of Computer and Information Science, Norwegian University of Science and Technology, 7491 Trondheim, Norway; Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, 7491 Trondheim, Norway
| | - Arne Yndestad
- Research Institute of Internal Medicine, Oslo University Hospital and University of Oslo, 0424 Oslo, Norway; Center for Heart Failure Research, University of Oslo, 0317 Oslo, Norway; K.G. Jebsen Inflammation Research Centre, University of Oslo, 0317 Oslo, Norway
| | - Pål Aukrust
- Research Institute of Internal Medicine, Oslo University Hospital and University of Oslo, 0424 Oslo, Norway; Section of Clinical Immunology and Infectious Diseases, Oslo University Hospital and University of Oslo, 0424 Oslo, Norway; K.G. Jebsen Inflammation Research Centre, University of Oslo, 0317 Oslo, Norway
| | - Magnar Bjørås
- Department of Microbiology, Oslo University Hospital and University of Oslo, 0424 Oslo, Norway; Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, 7491 Trondheim, Norway.
| | - Alexandra V Finsen
- Research Institute of Internal Medicine, Oslo University Hospital and University of Oslo, 0424 Oslo, Norway; Department of Cardiology, Oslo University Hospital and University of Oslo, 0424 Oslo, Norway; Center for Heart Failure Research, University of Oslo, 0317 Oslo, Norway
| |
Collapse
|
6
|
Anderson R, Richardson GD, Passos JF. Mechanisms driving the ageing heart. Exp Gerontol 2017; 109:5-15. [PMID: 29054534 DOI: 10.1016/j.exger.2017.10.015] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 10/16/2017] [Indexed: 01/07/2023]
Abstract
Cardiovascular disease (CVD) is the leading cause of death globally. One of the main risk factors for CVD is age, however the biological processes that occur in the heart during ageing are poorly understood. It is therefore important to understand the fundamental mechanisms driving heart ageing to enable the development of preventions and treatments targeting these processes. Cellular senescence is often described as the irreversible cell-cycle arrest which occurs in somatic cells. Emerging evidence suggests that cellular senescence plays a key role in heart ageing, however the cell-types involved and the underlying mechanisms are not yet elucidated. In this review we discuss the current understanding of how mechanisms known to contribute to senescence impact on heart ageing and CVD. Finally, we evaluate recent data suggesting that targeting senescent cells may be a viable therapy to counteract the ageing of the heart.
Collapse
Affiliation(s)
- Rhys Anderson
- The Randall Division, King's College London, London, UK; Ageing Research Laboratories, Newcastle University Institute for Ageing, Newcastle University, Newcastle upon Tyne, UK; Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle upon Tyne, UK.
| | - Gavin D Richardson
- Cardiovascular Research Centre, Institute for Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - João F Passos
- Ageing Research Laboratories, Newcastle University Institute for Ageing, Newcastle University, Newcastle upon Tyne, UK; Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle upon Tyne, UK
| |
Collapse
|
7
|
Bliksøen M, Baysa A, Eide L, Bjørås M, Suganthan R, Vaage J, Stensløkken KO, Valen G. Mitochondrial DNA damage and repair during ischemia-reperfusion injury of the heart. J Mol Cell Cardiol 2014; 78:9-22. [PMID: 25446179 DOI: 10.1016/j.yjmcc.2014.11.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Revised: 11/10/2014] [Accepted: 11/11/2014] [Indexed: 11/28/2022]
Abstract
Ischemia-reperfusion (IR) injury of the heart generates reactive oxygen species that oxidize macromolecules including mitochondrial DNA (mtDNA). The 8-oxoguanine DNA glycosylase (OGG1) works synergistically with MutY DNA glycosylase (MYH) to maintain mtDNA integrity. Our objective was to study the functional outcome of lacking the repair enzymes OGG1 and MYH after myocardial IR and we hypothesized that OGG1 and MYH are important enzymes to preserve mtDNA and heart function after IR. Ex vivo global ischemia for 30min followed by 10min of reperfusion induced mtDNA damage that was removed within 60min of reperfusion in wild-type mice. After 60min of reperfusion the ogg1(-/-) mice demonstrated increased mtDNA copy number and decreased mtDNA damage removal suggesting that OGG1 is responsible for removal of IR-induced mtDNA damage and copy number regulation. mtDNA damage was not detected in the ogg1(-/-)/myh(-/-), inferring that adenine opposite 8-oxoguanine is an abundant mtDNA lesion upon IR. The level and integrity of mtDNA were restored in all genotypes after 35min of regional ischemia and six week reperfusion with no change in cardiac function. No consistent upregulation of other mitochondrial base excision repair enzymes in any of our knockout models was found. Thus repair of mtDNA oxidative base lesions may not be important for maintenance of cardiac function during IR injury in vivo. This article is part of a Special Issue entitled "Mitochondria: From Basic Mitochondrial Biology to Cardiovascular Disease."
Collapse
Affiliation(s)
- M Bliksøen
- Department of Physiology, Institute of Basic Medical Sciences, Norway; Center for Heart Failure Research, University of Oslo, Norway
| | - A Baysa
- Department of Physiology, Institute of Basic Medical Sciences, Norway; Center for Heart Failure Research, University of Oslo, Norway
| | - L Eide
- Department of Medical Biochemistry, University of Oslo, Norway
| | - M Bjørås
- Department of Microbiology, University of Oslo and Oslo University Hospital Rikshospitalet, Norway
| | - R Suganthan
- Department of Microbiology, University of Oslo and Oslo University Hospital Rikshospitalet, Norway
| | - J Vaage
- Department of Emergency Medicine and Intensive Care, University of Oslo and Oslo University Hospital, Ullevål, Oslo, Norway
| | - K O Stensløkken
- Department of Physiology, Institute of Basic Medical Sciences, Norway; Center for Heart Failure Research, University of Oslo, Norway.
| | - G Valen
- Department of Physiology, Institute of Basic Medical Sciences, Norway; Center for Heart Failure Research, University of Oslo, Norway
| |
Collapse
|
8
|
Long-acting beneficial effect of percutaneously intramyocardially delivered secretome of apoptotic peripheral blood cells on porcine chronic ischemic left ventricular dysfunction. Biomaterials 2014; 35:3541-50. [PMID: 24439416 DOI: 10.1016/j.biomaterials.2013.12.071] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2013] [Accepted: 12/20/2013] [Indexed: 01/16/2023]
Abstract
The quantity of cells with paracrine effects for use in myocardial regeneration therapy is limited. This study investigated the effects of catheter-based endomyocardial delivery of secretome of 2.5 × 10(9) apoptotic peripheral blood mononuclear cells (APOSEC) on porcine chronic post-myocardial infarction (MI) left ventricular (LV) dysfunction and on gene expression. Closed-chest reperfused MI was induced in pigs by 90-min occlusion followed by reperfusion of the mid-LAD (day 0). At day 30, animals were randomized to receive porcine APOSEC (n = 8) or medium solution (control; n = 8) injected intramyocardially into the MI border zone using 3D NOGA guidance. At day 60, cardiac MRI with late enhancement and diagnostic NOGA (myocardial viability) were performed. Gene expression profiling of the infarct core, border zone, and normal myocardium was performed using microarray analysis and confirmed by quantitative real-time PCR. Injection of APOSEC significantly decreased infarct size (p < 0.05) and improved cardiac index and myocardial viability compared to controls. A trend towards higher LV ejection fraction was observed in APOSEC vs. controls (45.4 ± 5.9% vs. 37.4 ± 8.9%, p = 0.052). Transcriptome analysis revealed significant downregulation of caspase-1, tumor necrosis factor and other inflammatory genes in APOSEC-affected areas. rtPCR showed higher expression of myogenic factor Mefc2 (p < 0.05) and downregulated caspase genes (p < 0.05) in APOSEC-treated pigs. In conclusion, overexpression of MEF2c and repression of caspase was related to decreased infarct size and improved cardiac function in secretome-treated animals. Altered gene expression 1-month post-APOSEC treatment proved the long-acting effects of cell-free therapy with paracrine factors.
Collapse
|
9
|
Ma H, Wang J, Abdel-Rahman SZ, Boor PJ, Khan MF. Induction of base excision repair enzymes NTH1 and APE1 in rat spleen following aniline exposure. Toxicol Appl Pharmacol 2013; 267:276-83. [PMID: 23352893 DOI: 10.1016/j.taap.2013.01.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Revised: 01/09/2013] [Accepted: 01/11/2013] [Indexed: 01/16/2023]
Abstract
Mechanisms by which aniline exposure elicits splenotoxicity, especially a tumorigenic response, are not well-understood. Earlier, we have shown that aniline exposure leads to oxidative DNA damage and up-regulation of OGG1 and NEIL1/2 DNA glycosylases in rat spleen. However, the contribution of endonuclease III homolog 1 (NTH1) and apurinic/apyrimidinic endonuclease 1 (APE1) in the repair of aniline-induced oxidative DNA damage in the spleen is not known. This study was, therefore, focused on examining whether NTH1 and APE1 contribute to the repair of oxidative DNA lesions in the spleen, in an experimental condition preceding tumorigenesis. To achieve this, male SD rats were subchronically exposed to aniline (0.5 mmol/kg/day via drinking water for 30 days), while controls received drinking water only. By quantitating the cleavage products, the activities of NTH1 and APE1 were assayed using substrates containing thymine glycol (Tg) and tetrahydrofuran, respectively. Aniline treatment led to significant increases in NTH1- and APE1-mediated BER activity in the nuclear extracts of spleen of aniline-treated rats compared to the controls. NTH1 and APE1 mRNA expression in the spleen showed 2.9- and 3.2-fold increases, respectively, in aniline-treated rats compared to the controls. Likewise, Western blot analysis showed that protein expression of NTH1 and APE1 in the nuclear extracts of spleen from aniline-treated rats was 1.9- and 2.7-fold higher than the controls, respectively. Immunohistochemistry indicated that aniline treatment also led to stronger immunoreactivity for both NTH1 and APE1 in the spleens, confined to the red pulp areas. These results, thus, show that aniline exposure is associated with induction of NTH1 and APE1 in the spleen. The increased repair activity of NTH1 and APE1 could be an important mechanism for the removal of oxidative DNA lesions. These findings thus identify a novel mechanism through which NTH1 and APE1 may regulate the repair of oxidative DNA damage in aniline-induced splenic toxicity.
Collapse
Affiliation(s)
- Huaxian Ma
- Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | | | | | | | | |
Collapse
|
10
|
Zbuk K, Xie C, Young R, Heydarpour M, Pare G, Davis AD, Miller R, Lanktree MB, Saleheen D, Danesh J, Yusuf S, Engert JC, Hegele RA, Anand SS. BRCA2 variants and cardiovascular disease in a multi-ethnic study. BMC MEDICAL GENETICS 2012; 13:56. [PMID: 22809218 PMCID: PMC3464815 DOI: 10.1186/1471-2350-13-56] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2011] [Accepted: 07/18/2012] [Indexed: 11/29/2022]
Abstract
Background Germline mutations of BRCA1/2 are associated with hereditary breast and ovarian cancer. Recent data suggests excess mortality in mutation carriers beyond that conferred by neoplasia, and recent in vivo and in vitro studies suggest a modulatory role for BRCA proteins in endothelial and cardiomyocyte function. We therefore tested the association of BRCA2 variants with clinical cardiovascular disease (CVD). Methods Using data from 1,170 individuals included in two multi-ethnic population-based studies (SHARE and SHARE-AP), the association between BRCA2 variants and CVD was evaluated. 15 SNPs in BRCA2 with minor allele frequencies (MAF) > 0.01 had been previously genotyped using the cardiovascular gene-centric 50 k SNP array. 115 individuals (9.8%) reported a CVD event, defined as myocardial infarction (MI), angina, silent MI, stroke, and angioplasty or coronary artery bypass surgery. Analyses were adjusted for age and sex. The SNPs rs11571836 and rs1799943 were subsequently genotyped using the MassARRAY platform in 1,045 cases of incident MI and 1,135 controls from the South Asian subset of an international case-control study of acute MI (INTERHEART), and rs11571836 was imputed in 4,686 cases and 4500 controls from the Pakistan Risk of Myocardial Infarction Study (PROMIS). Results Two BRCA2 SNPs, rs11571836 and rs1799943, both located in untranslated regions, were associated with lower risk of CVD (OR 0.47 p = 0.01 and OR 0.56 p = 0.03 respectively) in the SHARE studies. Analysis by specific ethnicities demonstrated an association with CVD for both SNPs in Aboriginal People, and for rs11571836 only in South Asians. No association was observed in the European and Chinese subgroups. A non-significant trend towards an association between rs11571836 and lower risk of MI was observed in South Asians from INTERHEART [OR = 0.87 (95% CI: 0.75-1.01) p = 0.068], but was not evident in PROMIS [OR = 0.96 (95% CI: 0.90-1.03) p = 0.230]. Meta-analysis of both case-control studies resulted in a combined OR of 0.94 (95% CI: 0.89-1.004, p = 0.06). Conclusions Although there was an association between two SNPs in BRCA2 and CVD in a multi-ethnic population, these results were not replicated in two South Asian case-control studies of incident MI. Future studies exploring the association between BRCA variants and cardiovascular disorders are needed to clarify the role, if any, for BRCA variants in CVD pathogenesis.
Collapse
Affiliation(s)
- Kevin Zbuk
- Population Health Research Institute, Hamilton Health Sciences, Hamilton, ON, Canada
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
11
|
Ma H, Wang J, Abdel-Rahman SZ, Hazra TK, Boor PJ, Khan MF. Induction of NEIL1 and NEIL2 DNA glycosylases in aniline-induced splenic toxicity. Toxicol Appl Pharmacol 2010; 251:1-7. [PMID: 21145906 DOI: 10.1016/j.taap.2010.12.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2010] [Revised: 11/30/2010] [Accepted: 12/01/2010] [Indexed: 01/08/2023]
Abstract
The mechanisms by which aniline exposure elicits splenotoxic response, especially the tumorigenic response, are not well-understood. Earlier, we have shown that aniline-induced oxidative stress is associated with increased oxidative DNA damage in rat spleen. The base excision repair (BER) pathway is the major mechanism for the repair of oxidative DNA base lesions, and we have shown an up-regulation of 8-oxoguanine glycosylase 1 (OGG1), a specific DNA glycosylase involved in the removal of 8-hydroxy-2'-deoxyguanosine (8-OHdG) adducts, following aniline exposure. Nei-like DNA glycosylases (NEIL1/2) belong to a family of BER proteins that are distinct from other DNA glycosylases, including OGG1. However, contribution of NEIL1/2 in the repair of aniline-induced oxidative DNA damage in the spleen is not known. This study was, therefore, focused on evaluating if NEILs also contribute to the repair of oxidative DNA lesions in the spleen following aniline exposure. To achieve that, male SD rats were subchronically exposed to aniline (0.5 mmol/kg/day via drinking water for 30 days), while controls received drinking water only. The BER activity of NEIL1/2 was assayed using a bubble structure substrate containing 5-OHU (preferred substrates for NEIL1 and NEIL2) and by quantitating the cleavage products. Aniline treatment led to a 1.25-fold increase in the NEIL1/2-associated BER activity in the nuclear extracts of spleen compared to the controls. Real-time PCR analysis for NEIL1 and NEIL2 mRNA expression in the spleen revealed 2.7- and 3.9-fold increases, respectively, in aniline-treated rats compared to controls. Likewise, Western blot analysis showed that protein expression of NEIL1 and NEIL2 in the nuclear extract of spleens from aniline-treated rats was 2.0- and 3.8-fold higher than controls, respectively. Aniline treatment also led to stronger immunoreactivity for NEIL1 and NEIL2 in the spleens, confined to the red pulp areas. These studies, thus, show that aniline-induced oxidative stress is associated with an induction of NEIL1/2. The increased NIEL-mediated BER activity is another indication of aniline-induced oxidative damage in the spleen and could constitute another important mechanism of removal of oxidative DNA lesions, especially in transcribed DNA following aniline insult.
Collapse
Affiliation(s)
- Huaxian Ma
- Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | | | | | | | | | | |
Collapse
|
12
|
Shukla PC, Singh KK, Yanagawa B, Teoh H, Verma S. DNA damage repair and cardiovascular diseases. Can J Cardiol 2010; 26 Suppl A:13A-16A. [DOI: 10.1016/s0828-282x(10)71055-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
|