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Moon D, Padanilam BJ, Park KM, Kim J. Loss of SAV1 in Kidney Proximal Tubule Induces Maladaptive Repair after Ischemia and Reperfusion Injury. Int J Mol Sci 2024; 25:4610. [PMID: 38731829 PMCID: PMC11083677 DOI: 10.3390/ijms25094610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 04/16/2024] [Accepted: 04/19/2024] [Indexed: 05/13/2024] Open
Abstract
Kidney ischemia and reperfusion injury (IRI) is a significant contributor to acute kidney injury (AKI), characterized by tubular injury and kidney dysfunction. Salvador family WW domain containing protein 1 (SAV1) is a key component of the Hippo pathway and plays a crucial role in the regulation of organ size and tissue regeneration. However, whether SAV1 plays a role in kidney IRI is not investigated. In this study, we investigated the role of SAV1 in kidney injury and regeneration following IRI. A proximal tubule-specific knockout of SAV1 in kidneys (SAV1ptKO) was generated, and wild-type and SAV1ptKO mice underwent kidney IRI or sham operation. Plasma creatinine and blood urea nitrogen were measured to assess kidney function. Histological studies, including periodic acid-Schiff staining and immunohistochemistry, were conducted to assess tubular injury, SAV1 expression, and cell proliferation. Western blot analysis was employed to assess the Hippo pathway-related and proliferation-related proteins. SAV1 exhibited faint expression in the proximal tubules and was predominantly expressed in the connecting tubule to the collecting duct. At 48 h after IRI, SAV1ptKO mice continued to exhibit severe kidney dysfunction, compared to attenuated kidney dysfunction in wild-type mice. Consistent with the functional data, severe tubular damage induced by kidney IRI in the cortex was significantly decreased in wild-type mice at 48 h after IRI but not in SAV1ptKO mice. Furthermore, 48 h after IRI, the number of Ki67-positive cells in the cortex was significantly higher in wild-type mice than SAV1ptKO mice. After IRI, activation and expression of Hippo pathway-related proteins were enhanced, with no significant differences observed between wild-type and SAV1ptKO mice. Notably, at 48 h after IRI, protein kinase B activation (AKT) was significantly enhanced in SAV1ptKO mice compared to wild-type mice. This study demonstrates that SAV1 deficiency in the kidney proximal tubule worsens the injury and delays kidney regeneration after IRI, potentially through the overactivation of AKT.
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Affiliation(s)
- Daeun Moon
- Department of Anatomy, Jeju National University College of Medicine, Jeju 63243, Republic of Korea;
| | - Babu J. Padanilam
- Department of Urology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA;
| | - Kwon Moo Park
- Department of Anatomy, BK21 Plus, and Cardiovascular Research Institute, School of Medicine, Kyungpook National University, Daegu 41944, Republic of Korea;
| | - Jinu Kim
- Department of Anatomy, Jeju National University College of Medicine, Jeju 63243, Republic of Korea;
- Interdisciplinary Graduate Program in Advanced Convergence Technology & Science, Jeju National University, Jeju 63243, Republic of Korea
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Vermehren-Schmaedick A, Joshi S, Wagoner W, Norgard MA, Packwood W, Diba P, Mendez H, Fedorov LM, Rakshe S, Park B, Marks DL, Grossberg A, Luoh SW. Grb7 Ablation in Mice Improved Glycemic Control, Enhanced Insulin Signaling, and Increased Abdominal fat Mass in Females. Endocrinology 2024; 165:bqae045. [PMID: 38578949 DOI: 10.1210/endocr/bqae045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Revised: 02/23/2024] [Accepted: 04/04/2024] [Indexed: 04/07/2024]
Abstract
OBJECTIVES Growth factor receptor bound protein 7 (GRB7) is a multidomain signaling adaptor. Members of the Grb7/10/14 family, specifically Gbrb10/14, have important roles in metabolism. We ablated the Grb7 gene in mice to examine its metabolic function. METHODS Global ablation of Grb7 in FVB/NJ mice was generated. Growth, organ weight, food intake, and glucose homeostasis were measured. Insulin signaling was examined by Western blotting. Fat and lean body mass was measured by nuclear magnetic resonance, and body composition after fasting or high-fat diet was assessed. Energy expenditure was measured by indirect calorimetry. Expression of adiposity and lipid metabolism genes was measured by quantitative PCR. RESULTS Grb7-null mice were viable, fertile, and without obvious phenotype. Grb7 ablation improved glycemic control and displayed sensitization to insulin signaling in the liver. Grb7-null females but not males had increased gonadal white adipose tissue mass. Following a 12-week high-fat diet, Grb7-null female mice gained fat body mass and developed relative insulin resistance. With fasting, there was less decrease in fat body mass in Grb7-null female mice. Female mice with Grb7 ablation had increased baseline food intake, less energy expenditure, and displayed a decrease in the expression of lipolysis and adipose browning genes in gonadal white adipose tissue by transcript and protein analysis. CONCLUSION Our study suggests that Grb7 is a negative regulator of glycemic control. Our results reveal a role for Grb7 in female mice in the regulation of the visceral adipose tissue mass, a powerful predictor of metabolic dysfunction in obesity.
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Affiliation(s)
- Anke Vermehren-Schmaedick
- Veterans Administration Portland Health Care System, Division of Hospital and Specialty Medicine, Portland, OR 97239, USA
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR 97239, USA
- Division of Hematology and Medical Oncology, Department of Medicine, Oregon Health & Science University, Portland, OR 97239, USA
| | - Sonali Joshi
- Veterans Administration Portland Health Care System, Division of Hospital and Specialty Medicine, Portland, OR 97239, USA
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Oregon Health & Science University and Knight Cancer Institute, Portland, OR 97239, USA
| | - Wendy Wagoner
- Veterans Administration Portland Health Care System, Division of Hospital and Specialty Medicine, Portland, OR 97239, USA
| | - Mason A Norgard
- Papé Family Pediatric Research Institute, Department of Pediatrics, Oregon Health &Science University, Portland, OR 97239, USA
| | - William Packwood
- Small Animal Research Imaging Core, USR Program, Oregon Health & Science University, Portland, OR 97239, USA
| | - Parham Diba
- Papé Family Pediatric Research Institute, Department of Pediatrics, Oregon Health &Science University, Portland, OR 97239, USA
- Medical Scientist Training Program, Oregon Health & Science University, Portland, OR 97239, USA
| | - Heike Mendez
- Brenden Colson Center for Pancreatic Care, Department of Radiation Medicine, Oregon Health & Science University, Portland, OR 97239, USA
| | - Lev M Fedorov
- Transgenic Mouse Models Shared Resource, USR Program, Oregon Health & Science University, Portland, OR 97239, USA
| | - Shauna Rakshe
- Biostatistics Shared Resource, Knight Cancer Institute, Oregon Health & Science University, Portland, OR 97239, USA
| | - Byung Park
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR 97239, USA
- Biostatistics Shared Resource, Knight Cancer Institute, Oregon Health & Science University, Portland, OR 97239, USA
- OHSU-PSU School of Public Health, Oregon Health & Science University, Portland, OR 97239, USA
| | - Daniel L Marks
- Papé Family Pediatric Research Institute, Department of Pediatrics, Oregon Health &Science University, Portland, OR 97239, USA
| | - Aaron Grossberg
- Brenden Colson Center for Pancreatic Care, Department of Radiation Medicine, Oregon Health & Science University, Portland, OR 97239, USA
| | - Shiuh-Wen Luoh
- Veterans Administration Portland Health Care System, Division of Hospital and Specialty Medicine, Portland, OR 97239, USA
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR 97239, USA
- Division of Hematology and Medical Oncology, Department of Medicine, Oregon Health & Science University, Portland, OR 97239, USA
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Nascimento-Gonçalves E, Seixas F, Palmeira C, Martins G, Fonseca C, Duarte JA, Faustino-Rocha AI, Colaço B, Pires MJ, Neuparth MJ, Moreira-Gonçalves D, Fardilha M, Henriques MC, Patrício D, Pelech S, Ferreira R, Oliveira PA. Lifelong exercise training promotes the remodelling of the immune system and prostate signalome in a rat model of prostate carcinogenesis. GeroScience 2024; 46:817-840. [PMID: 37171559 PMCID: PMC10828357 DOI: 10.1007/s11357-023-00806-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 04/21/2023] [Indexed: 05/13/2023] Open
Abstract
This work aimed to understand how lifelong exercise training promotes the remodelling of the immune system and prostate signalome in a rat model of PCa. Fifty-five male Wistar rats were divided into four groups: control sedentary, control exercised, induced PCa sedentary and induced PCa exercised. Exercised animals were trained in a treadmill for 53 weeks. Pca induction consisted on the sequential administration of flutamide, N-methyl-N-nitrosourea and testosterone propionate implants. Serum concentrations of C-reactive protein (CRP) and tumor necrosis factor (TNF)-like weak inducer of apoptosis (TWEAK) were not different among groups. Peripheral levels of γδ T cells were higher in Pca exercised group than in the PCa sedentary group (p < 0.05). Exercise training also induced Oestrogen Receptor (ESR1) upregulation and Mitogen-activated Protein Kinase 13 (MAPK13) downregulation, changed the content of the phosphorylated (at Ser-104) form of this receptor (coded by the gene ESR1) and seemed to increase Erα phosphorylation and activity in exercised PCa rats when compared with sedentary PCa rats. Our data highlight the exercise-induced remodelling of peripheral lymphocyte subpopulations and lymphocyte infiltration in prostate tissue. Moreover, exercise training promotes the remodelling prostate signalome in this rat model of prostate carcinogenesis.
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Affiliation(s)
- Elisabete Nascimento-Gonçalves
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-Os-Montes and Alto Douro (UTAD), 5000-801, Vila Real, Portugal
- Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), UTAD, 5000-801, Vila Real, Portugal
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro (UA), 3810-193, Aveiro, Portugal
| | - Fernanda Seixas
- Animal and Veterinary Research Centre (CECAV), Associate Laboratory for Animal and Veterinary Science - AL4AnimalS, UTAD, 5000-801, Vila Real, Portugal
- Department of Veterinary Sciences, University of Trás-Os-Montes and Alto Douro, 5000-801, Vila Real, Portugal
| | - Carlos Palmeira
- Clinical Pathology Department, Portuguese Institute of Oncology of Porto, 4200-072, Porto, Portugal
- Experimental Pathology and Therapeutics Group, Portuguese Institute of Oncology, 4200-072, Porto, Portugal
- School of Health Science Fernando Pessoa and FP-i3iD, 4200-253, Porto, Portugal
| | - Gabriela Martins
- Clinical Pathology Department, Portuguese Institute of Oncology of Porto, 4200-072, Porto, Portugal
- Experimental Pathology and Therapeutics Group, Portuguese Institute of Oncology, 4200-072, Porto, Portugal
| | - Carolina Fonseca
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-Os-Montes and Alto Douro (UTAD), 5000-801, Vila Real, Portugal
- Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), UTAD, 5000-801, Vila Real, Portugal
| | - José Alberto Duarte
- CIAFEL, Research Centre in Physical Activity, Health and Leisure, Faculty of Sport, University of Porto, 4200-450, Porto, Portugal
| | - Ana I Faustino-Rocha
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-Os-Montes and Alto Douro (UTAD), 5000-801, Vila Real, Portugal
- Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), UTAD, 5000-801, Vila Real, Portugal
- Department of Zootechnics, School of Sciences and Technology, University of Évora, 7004-516, Évora, Portugal
- Comprehensive Health Research Centre, 7004-516, Évora, Portugal
| | - Bruno Colaço
- Animal and Veterinary Research Centre (CECAV), Associate Laboratory for Animal and Veterinary Science - AL4AnimalS, UTAD, 5000-801, Vila Real, Portugal
- Department of Zootechnics, University of Trás-Os-Montes and Alto Douro, 5000-801, Vila Real, Portugal
| | - Maria João Pires
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-Os-Montes and Alto Douro (UTAD), 5000-801, Vila Real, Portugal
- Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), UTAD, 5000-801, Vila Real, Portugal
- Department of Veterinary Sciences, University of Trás-Os-Montes and Alto Douro, 5000-801, Vila Real, Portugal
| | - Maria João Neuparth
- Research Center in Physical Activity, Health and Leisure (CIAFEL)-Faculty of Sports-University of Porto (FADEUP), Portugal and Laboratory for Integrative and Translational Research in Population Health (ITR), Porto, Portugal
- TOXRUN - Toxicology Research Unit, University Institute of Health Sciences, CESPU, CRL, 4585-116, Gandra, Portugal
| | - Daniel Moreira-Gonçalves
- Research Center in Physical Activity, Health and Leisure (CIAFEL)-Faculty of Sports-University of Porto (FADEUP), Portugal and Laboratory for Integrative and Translational Research in Population Health (ITR), Porto, Portugal
| | - Margarida Fardilha
- Department of Medical Sciences, iBiMED - Institute of Biomedicine, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Magda C Henriques
- Department of Medical Sciences, iBiMED - Institute of Biomedicine, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Daniela Patrício
- Department of Medical Sciences, iBiMED - Institute of Biomedicine, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Steven Pelech
- Department of Medicine, University of British Columbia, Vancouver, B.C, Canada
- Kinexus Bioinformatics Corporation, Suite 1 - 8755 Ash Street, Vancouver, BC, V6P 6T3, Canada
| | - Rita Ferreira
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Paula A Oliveira
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-Os-Montes and Alto Douro (UTAD), 5000-801, Vila Real, Portugal.
- Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), UTAD, 5000-801, Vila Real, Portugal.
- Department of Veterinary Sciences, University of Trás-Os-Montes and Alto Douro, 5000-801, Vila Real, Portugal.
- Clinical Academic Center of Trás-Os-Montes and Alto Douro, University of Trás-Os-Montes and Alto Douro, 5000-801, Vila Real, Portugal.
- University of Trás-os-Montes and Alto Douro, Quinta dos Prados, 5001-801, Vila Real, Portugal.
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Brandauer J, Receno CN, Anyaoku C, Cooke LE, Schwarzer HM, DeRuisseau KC, Cunningham CM, DeRuisseau LR. Senescent hearts from male Ts65Dn mice exhibit preserved function but altered size and nicotinamide adenine dinucleotide pathway signaling. Am J Physiol Regul Integr Comp Physiol 2024; 326:R176-R183. [PMID: 38047317 DOI: 10.1152/ajpregu.00164.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 10/30/2023] [Accepted: 11/29/2023] [Indexed: 12/05/2023]
Abstract
Down syndrome (DS) is associated with congenital heart defects at birth, but cardiac function has not been assessed at older ages. We used the Ts65Dn mouse, a model of DS, to quantify heart structure and function with echocardiography in 18-mo male Ts65Dn and wild-type (WT) mice. Heart weight, nicotinamide adenine dinucleotide (NAD) signaling, and mitochondrial (citrate synthase) activity were investigated, as these pathways may be implicated in the cardiac pathology of DS. The left ventricle was smaller in Ts65Dn versus WT, as well as the anterior wall thickness of the left ventricle during both diastole (LVAW_d; mm) and systole (LVAW_s; mm) as assessed by echocardiography. Other functional metrics were similar between groups including left ventricular area end systole (mm2), left ventricular area end diastole (mm2), left ventricular diameter end systole (mm), left ventricular diameter end diastole (mm), isovolumetric relaxation time (ms), mitral valve atrial peak velocity (mm/s), mitral valve early peak velocity (mm/s), ratio of atrial and early peak velocities (E/A), heart rate (beats/min), ejection fraction (%), and fractional shortening (%). Nicotinamide phosphoribosyltransferase (NAMPT) protein expression, NAD concentration, and tissue weight were lower in the left ventricle of Ts65Dn versus WT mice. Sirtuin 3 (SIRT3) protein expression and citrate synthase activity were not different between groups. Although cardiac function was generally preserved in male Ts65Dn, the altered heart size and bioenergetic disturbances may contribute to differences in aging for DS.
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Affiliation(s)
- Josef Brandauer
- Health Sciences Department, Gettysburg College, Gettysburg, Pennsylvania, United States
| | - Candace N Receno
- Department of Exercise Science and Athletic Training, Ithaca College, Ithaca, New York, United States
| | - Cynthia Anyaoku
- Health Sciences Department, Gettysburg College, Gettysburg, Pennsylvania, United States
| | - Lauren E Cooke
- Health Sciences Department, Gettysburg College, Gettysburg, Pennsylvania, United States
| | - Hannalyn M Schwarzer
- Health Sciences Department, Gettysburg College, Gettysburg, Pennsylvania, United States
| | - Keith C DeRuisseau
- Department of Basic Sciences, University of Health Sciences and Pharmacy, St. Louis, Missouri, United States
| | - Caitlin M Cunningham
- Department of Computer Science, Mathematics, and Statistics, Le Moyne College, Syracuse, New York, United States
| | - Lara R DeRuisseau
- Department of Basic Sciences, University of Health Sciences and Pharmacy, St. Louis, Missouri, United States
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5
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Jouenne A, Hamici K, Varlet I, Sourdon J, Daudé P, Lan C, Kober F, Landrier JF, Bernard M, Desrois M. Relationship of cardiac remodeling and perfusion alteration with hepatic lipid metabolism in a prediabetic high fat high sucrose diet female rat model. Biochem Biophys Res Commun 2023; 682:207-215. [PMID: 37826944 DOI: 10.1016/j.bbrc.2023.09.089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 09/08/2023] [Accepted: 09/28/2023] [Indexed: 10/14/2023]
Abstract
BACKGROUND AND AIMS Cardiovascular disease (CVD) is known to be linked with metabolic associated fatty liver disease and type 2 diabetes, but few studies assessed this relationship in prediabetes, especially among women, who are at greater risk of CVD. We aimed to evaluate cardiac alterations and its relationship with hepatic lipid metabolism in prediabetic female rats submitted to high-fat-high-sucrose diet (HFS). METHODS AND RESULTS Wistar female rats were divided into 2 groups fed for 5 months with standard or HFS diet. We analyzed cardiac morphology, function, perfusion and fibrosis by Magnetic Resonance Imaging. Hepatic lipid contents along with inflammation and lipid metabolism gene expression were assessed. Five months of HFS diet induced glucose intolerance (p < 0.05), cardiac remodeling characterized by increased left-ventricular volume, wall thickness and mass (p < 0.05). No significant differences were found in left-ventricular ejection fraction and cardiac fibrosis but increased myocardial perfusion (p < 0.01) and reduced cardiac index (p < 0.05) were shown. HFS diet induced hepatic lipid accumulation with increased total lipid mass (p < 0.001) and triglyceride contents (p < 0.05), but also increased mitochondrial (CPT1a, MCAD; (p < 0.001; p < 0.05) and peroxisomal (ACO, LCAD; (p < 0.05; p < 0.001) β-oxidation gene expression. Myocardial wall thickness and perfusion were correlated with hepatic β-oxidation genes expression. Furthermore, myocardial perfusion was also correlated with hepatic lipid content and glucose intolerance. CONCLUSION This study brings new insights on the relationship between cardiac sub-clinical alterations and hepatic metabolism in female prediabetic rats. Further studies are warranted to explore its involvement in the higher CVD risk observed among prediabetic women.
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Affiliation(s)
- A Jouenne
- Aix-Marseille Univ, CNRS, CRMBM, Marseille, France.
| | - K Hamici
- Aix-Marseille Univ, CNRS, CRMBM, Marseille, France.
| | - I Varlet
- Aix-Marseille Univ, CNRS, CRMBM, Marseille, France.
| | - J Sourdon
- Aix-Marseille Univ, CNRS, CRMBM, Marseille, France.
| | - P Daudé
- Aix-Marseille Univ, CNRS, CRMBM, Marseille, France.
| | - C Lan
- Aix-Marseille Univ, CNRS, CRMBM, Marseille, France.
| | - F Kober
- Aix-Marseille Univ, CNRS, CRMBM, Marseille, France.
| | - J F Landrier
- Aix-Marseille Univ, INSERM, INRAE, C2VN, Marseille, France.
| | - M Bernard
- Aix-Marseille Univ, CNRS, CRMBM, Marseille, France.
| | - M Desrois
- Aix-Marseille Univ, CNRS, CRMBM, Marseille, France.
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Yu CHJ, Kienesberger PC, Pulinilkunnil T, Rupasinghe HPV. Effect of (poly)phenol-rich 'Daux Belan' apple supplementation on diet-induced obesity and glucose intolerance in C57BL/6NCrl mice. Sci Rep 2023; 13:17206. [PMID: 37821510 PMCID: PMC10567707 DOI: 10.1038/s41598-023-43687-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 09/27/2023] [Indexed: 10/13/2023] Open
Abstract
Obesity is a state of metabolic dysfunction that can lead to dyslipidemia and impaired glucose homeostasis. Apple polyphenols have been shown to ameliorate dyslipidemia/metabolic dysfunction in humans. The influence of apple (poly)phenols on energy metabolism in high-fat (HF) diet-induced obese mice remains controversial. This study examined the effect of dietary supplementation of (poly)phenol-rich 'Daux Belan' apple (DB; 6.2 mg gallic acid equivalence (GAE)/mouse/day; 0.15% (poly)phenol) in the form of freeze-dried powder on glucose and lipid metabolism in male HF-fed C57BL/6NCrl mice, in comparison to low-(poly)phenol-containing 'Zestar' apple (Z; 0.4 mg GAE/mouse/day). Obesity, glucose intolerance, hypertriglyceridemia, and hepatic lipid vacuolation were induced by HF feeding while circulating cholesterol levels remained unchanged. DB apple supplementation did not protect against HF-induced body weight gain, hyperglycemia, hepatic triglyceride level elevation, and hepatic lipid vacuolation at the tested dosage. Future studies should be conducted with increased DB dosage and employ apple (poly)phenols supplemented in the form of extracts or sugar-free powder.
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Affiliation(s)
- Cindy H J Yu
- Department of Plant, Food, and Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, NS, B2N 5E3, Canada
| | - Petra C Kienesberger
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Dalhousie University, Dalhousie Medicine New Brunswick, Saint John, NB, Canada
| | - Thomas Pulinilkunnil
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Dalhousie University, Dalhousie Medicine New Brunswick, Saint John, NB, Canada
| | - H P Vasantha Rupasinghe
- Department of Plant, Food, and Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, NS, B2N 5E3, Canada.
- Department of Pathology, Faculty of Medicine, Dalhousie University, Halifax, NS, Canada.
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Elkatary RG, El Beltagy HM, Abdo VB, El Fatah DSA, El-Karef A, Ashour RH. Poly (ADP-ribose) polymerase pathway inhibitor (Olaparib) upregulates SERCA2a expression and attenuates doxorubicin-induced cardiomyopathy in mice. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2023; 103:104261. [PMID: 37689219 DOI: 10.1016/j.etap.2023.104261] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 08/19/2023] [Accepted: 09/06/2023] [Indexed: 09/11/2023]
Abstract
The cardiotoxicity induced by doxorubicin is dose-dependent. The present study tested the potential cardioprotective effect of Poly ADP Ribose Polymerase (PARP) pathway inhibitor "olaparib" in a mouse model of doxorubicin-induced cardiomyopathy (DOX-CM). Seventy-two male BALB/c mice were randomized into six equal groups; control, DOX-CM, dexrazoxane-treated, and three olaparib-treated groups (5, 10, and 50 mg/kg/day). Cardiomyopathy was assessed by heart weight/Tibial length (HW/TL) ratio, cardiac fibrosis, oxidative stress, and electron microscope. Myocardial expression of SERCA2a mRNA and cleaved PARP-1 protein were also assessed. Similar to dexrazoxane, olaparib (10 mg/kg/day) significantly ameliorated oxidative stress, and preserved cardiac structure. It also suppressed myocardial PARP-1 protein expression and boosted SERCA2a mRNA expression. Olaparib (5 or 50 mg/kg/day) failed to show comparable effects. The current study detected the cardioprotective effect of olaparib at a dosage of 10 mg/kg/day. Also, the present study discovered a new cardioprotective mechanism of dexrazoxane by targeting PARP-1 in the heart.
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Affiliation(s)
- Rania Gamal Elkatary
- Clinical Pharmacology Department, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt
| | | | - Vivian Boshra Abdo
- Clinical Pharmacology Department, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Dina Sabry Abd El Fatah
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Cairo University, Egypt
| | - Amr El-Karef
- Pathology Department, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt; Horus University-Egypt, New Damietta, Egypt
| | - Rehab Hamdy Ashour
- Clinical Pharmacology Department, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt.
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8
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Thompson HJ, Lutsiv T, McGinley JN, Fitzgerald VK, Neil ES. Consumption of Common Bean Suppresses the Obesogenic Increase in Adipose Depot Mass: Impact of Dose and Biological Sex. Nutrients 2023; 15:2015. [PMID: 37432145 DOI: 10.3390/nu15092015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 04/13/2023] [Accepted: 04/19/2023] [Indexed: 07/12/2023] Open
Abstract
Obesity prevention is stated as a simple objective in the public health guidelines of most countries: avoid adult weight gain. However, the success of the global population in accomplishing this goal is limited as reflected in the persisting pandemic of overweight and obesity. While many intervention strategies have been proposed, most are directed at mitigating the consequences of obesity. Efforts intended to prevent unintentional weight gain and associated adiposity are termed anti-obesogenic. Herein, evidence is presented that a neglected category of foods, pulses, i.e., grain legumes, have anti-obesogenic activity. Using a preclinical mouse model of obesity, a dose-response study design in animals of both biological sexes, and cooked, freeze-dried, and milled common bean as a representative pulse, data are presented showing that the rate of body weight gain is slowed, and fat accumulation is suppressed when 70% of the dietary protein is provided from common bean. These anti-obesogenic effects are reduced at lower amounts of common bean (17.5% or 35%). The anti-obesogenic responsiveness is greater in female than in male mice. RNA sequence analysis indicates that the sex-related differences extend to gene expression patterns, particularly those related to immune regulation within adipose tissue. In addition, our findings indicate the potential value of a precision nutrition approach for human intervention studies that identify "pulse anti-obesogenic responders". A precision approach may reduce the concentration of pulses required in the diet for benefits, but candidate biomarkers of responsivity to pulse consumption remain to be determined.
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Affiliation(s)
- Henry J Thompson
- Cancer Prevention Laboratory, Colorado State University, Fort Collins, CO 80523, USA
| | - Tymofiy Lutsiv
- Cancer Prevention Laboratory, Colorado State University, Fort Collins, CO 80523, USA
| | - John N McGinley
- Cancer Prevention Laboratory, Colorado State University, Fort Collins, CO 80523, USA
| | - Vanessa K Fitzgerald
- Cancer Prevention Laboratory, Colorado State University, Fort Collins, CO 80523, USA
| | - Elizabeth S Neil
- Cancer Prevention Laboratory, Colorado State University, Fort Collins, CO 80523, USA
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9
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Mavrogiannis E, Hagdorn QA, Bazioti V, Douwes JM, Van Der Feen DE, Oberdorf‐Maass SU, Westerterp M, Berger RM. Pirfenidone ameliorates pulmonary arterial pressure and neointimal remodeling in experimental pulmonary arterial hypertension by suppressing NLRP3 inflammasome activation. Pulm Circ 2022; 12:e12101. [PMID: 35833096 PMCID: PMC9262321 DOI: 10.1002/pul2.12101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 06/10/2022] [Accepted: 06/16/2022] [Indexed: 12/05/2022] Open
Abstract
Pulmonary arterial hypertension (PAH) is a fatal disease characterized by increased pulmonary arterial pressure, inflammation, and neointimal remodeling of pulmonary arterioles. Serum levels of interleukin (IL)‐1β and IL‐18 are elevated in PAH patients and may enhance proinflammatory neointimal remodeling. NLRP3 inflammasome activation induces cleavage of the cytokines IL‐1β and IL‐18, required for their secretion. Pirfenidone (PFD), an antifibrotic and anti‐inflammatory drug, has been suggested to inhibit NLRP3 inflammasome activation. We hypothesized that PFD delays the progression of PAH by suppressing NLRP3 inflammasome activation. We assessed the effects of PFD treatment in a rat model for neointimal PAH induced by monocrotaline and aortocaval shunt using echocardiographic, hemodynamic, and vascular remodeling parameters. We measured inflammasome activation by NLRP3 immunostaining, Western blots for caspase‐1, IL‐1β, and IL‐18 cleavage, and macrophage IL‐1β secretion. PFD treatment ameliorated pulmonary arterial pressure, pulmonary vascular resistance, and pulmonary vascular remodeling in PAH rats. In PAH rats, immunostaining of NLRP3 in pulmonary arterioles and caspase‐1, IL‐1β, and IL‐18 cleavage in lung homogenates were increased compared to controls, reflecting NLRP3 inflammasome activation in vivo. PFD decreased IL‐1β and IL‐18 cleavage, as well as macrophage IL‐1β secretion in vitro. Our studies show that PFD ameliorates pulmonary hemodynamics and vascular remodeling in experimental PAH. Although PFD did not affect all NLRP3 inflammasome parameters, it decreased IL‐1β and IL‐18 cleavage, the products of NLRP3 inflammasome activation that are key to its downstream effects. Our findings thus suggest a therapeutic benefit of PFD in PAH via suppression of NLRP3 inflammasome activation.
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Affiliation(s)
- Emmanouil Mavrogiannis
- Center For Congenital Heart Diseases, Department Of Pediatric Cardiology, Beatrix Children's Hospital University Medical Center Groningen, University Of Groningen The Netherlands
- Department Of Pediatrics, Beatrix Children's Hospital University Medical Center,Groningen, University Of Groningen The Netherlands
| | - Quint A.J. Hagdorn
- Center For Congenital Heart Diseases, Department Of Pediatric Cardiology, Beatrix Children's Hospital University Medical Center Groningen, University Of Groningen The Netherlands
| | - Venetia Bazioti
- Department Of Pediatrics, Beatrix Children's Hospital University Medical Center,Groningen, University Of Groningen The Netherlands
| | - Johannes M. Douwes
- Center For Congenital Heart Diseases, Department Of Pediatric Cardiology, Beatrix Children's Hospital University Medical Center Groningen, University Of Groningen The Netherlands
| | - Diederik E. Van Der Feen
- Center For Congenital Heart Diseases, Department Of Pediatric Cardiology, Beatrix Children's Hospital University Medical Center Groningen, University Of Groningen The Netherlands
| | - Silke U. Oberdorf‐Maass
- Department Of Experimental Cardiology University Medical Center Groningen, University Of Groningen The Netherlands
| | - Marit Westerterp
- Department Of Pediatrics, Beatrix Children's Hospital University Medical Center,Groningen, University Of Groningen The Netherlands
| | - Rolf M.F. Berger
- Center For Congenital Heart Diseases, Department Of Pediatric Cardiology, Beatrix Children's Hospital University Medical Center Groningen, University Of Groningen The Netherlands
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10
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Bossers GPL, Hagdorn QAJ, Koop AMC, van der Feen DE, van Leusden T, Bartelds B, de Boer RA, Silljé HHW, Berger RMF. Female rats are less prone to clinical heart failure than male rats in a juvenile rat model of right ventricular pressure load. Am J Physiol Heart Circ Physiol 2022; 322:H994-H1002. [PMID: 35333114 DOI: 10.1152/ajpheart.00071.2022] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Sex is increasingly emerging as determinant of right ventricular (RV) adaptation to abnormal loading conditions. It is unknown, however, whether sex-related differences already occur in childhood. Therefore, this study aimed to assess sex differences in a juvenile model of early RV pressure load by pulmonary artery banding (PAB) during transition from pre- to post-puberty. 3-weeks old rat pups (n=57, 30-45g) were subjected to PAB or sham surgery. Animals were sacrificed either before or after puberty (4 and 8 weeks post-surgery, respectively). Male PAB rats demonstrated failure to thrive already after 4 weeks, whereas females did not. After 8 weeks, female PAB rats showed less clinical symptoms of RV failure than male PAB rats. RV pressure-volume analysis demonstrated increased end-systolic elastance after 4 weeks in females only, and a trend toward preserved end-diastolic elastance in female PAB rats compared to males (p=0.055). Histology showed significantly less RV myocardial fibrosis in female compared to male PAB rats 8 weeks after surgery. Myosin heavy chain 7/6 ratio switch and calcineurin signaling were less pronounced in female PAB rats, compared to males. In this juvenile rat model of RV pressure load, female rats appeared to be less prone to clinical heart failure, compared to males. This was driven by increased RV contractility before puberty, and better preservation of diastolic function with less RV myocardial fibrosis after puberty. These findings show that RV adaptation to increased loading differs between sexes already before the introduction of pubertal hormones.
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Affiliation(s)
- Guido P L Bossers
- Center for Congenital Heart Diseases, Department of Pediatric Cardiology, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, GRONINGEN, Nederland, Netherlands
| | - Quint A J Hagdorn
- Center for Congenital Heart Diseases, Department of Pediatric Cardiology, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Anne Marie C Koop
- Center for Congenital Heart Diseases, Department of Pediatric Cardiology, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, GRONINGEN, Netherlands
| | - Diederik E van der Feen
- Center for Congenital Heart Diseases, Department of Pediatric Cardiology, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Tom van Leusden
- Center for Congenital Heart Diseases, Department of Pediatric Cardiology, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Beatrijs Bartelds
- Center for Congenital Heart Diseases, Department of Pediatric Cardiology, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen; Division of Pediatric Cardiology, Department of Pediatrics, Erasmus University Medical Center, Sophia Children's Hospital, Rotterdam, Netherlands
| | - Rudolf A de Boer
- Department of Cardiology, Laboratory for Experimental Cardiology, University Medical Center Groningen, University of Groningen, Groningen, Groningen, Netherlands
| | - Herman H W Silljé
- Department of Cardiology, Laboratory for Experimental Cardiology, University Medical Center Groningen, University of Groningen, Groningen, Groningen, Netherlands
| | - Rolf M F Berger
- Center for Congenital Heart Diseases, Department of Pediatric Cardiology, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Netherlands
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11
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Fossey MPM, Balthazaar SJT, Squair JW, Williams AM, Poormasjedi-Meibod MS, Nightingale TE, Erskine E, Hayes B, Ahmadian M, Jackson GS, Hunter DV, Currie KD, Tsang TSM, Walter M, Little JP, Ramer MS, Krassioukov AV, West CR. Spinal cord injury impairs cardiac function due to impaired bulbospinal sympathetic control. Nat Commun 2022; 13:1382. [PMID: 35296681 PMCID: PMC8927412 DOI: 10.1038/s41467-022-29066-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 02/20/2022] [Indexed: 02/08/2023] Open
Abstract
Spinal cord injury chronically alters cardiac structure and function and is associated with increased odds for cardiovascular disease. Here, we investigate the cardiac consequences of spinal cord injury on the acute-to-chronic continuum, and the contribution of altered bulbospinal sympathetic control to the decline in cardiac function following spinal cord injury. By combining experimental rat models of spinal cord injury with prospective clinical studies, we demonstrate that spinal cord injury causes a rapid and sustained reduction in left ventricular contractile function that precedes structural changes. In rodents, we experimentally demonstrate that this decline in left ventricular contractile function following spinal cord injury is underpinned by interrupted bulbospinal sympathetic control. In humans, we find that activation of the sympathetic circuitry below the level of spinal cord injury causes an immediate increase in systolic function. Our findings highlight the importance for early interventions to mitigate the cardiac functional decline following spinal cord injury. By combining experimental models with prospective clinical studies, the authors show that spinal cord injury causes a rapid reduction in cardiac function that precedes structural changes, and that the loss of descending sympathetic control is the major cause of reduced cardiac function following spinal cord injury.
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Affiliation(s)
- Mary P M Fossey
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, BC, Canada.,Experimental Medicine, Department of Medicine, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Shane J T Balthazaar
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, BC, Canada.,Experimental Medicine, Department of Medicine, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Jordan W Squair
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, BC, Canada
| | - Alexandra M Williams
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, BC, Canada.,Department of Cellular and Physiological Sciences, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | | | - Tom E Nightingale
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, BC, Canada.,School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, UK.,Centre for Trauma Sciences Research, University of Birmingham, Edgabaston, Birmingham, UK
| | - Erin Erskine
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, BC, Canada.,Department of Cellular and Physiological Sciences, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Brian Hayes
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, BC, Canada
| | - Mehdi Ahmadian
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, BC, Canada.,School of Kinesiology, Faculty of Education, University of British Columbia, Vancouver, BC, Canada
| | - Garett S Jackson
- Faculty of Health and Social Development, University of British Columbia, Kelowna, BC, Canada
| | - Diana V Hunter
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, BC, Canada
| | - Katharine D Currie
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, BC, Canada
| | - Teresa S M Tsang
- Division of Cardiology, University of British Columbia, Vancouver General and University of British Columbia Hospital Echocardiography Department, Vancouver, BC, Canada
| | - Matthias Walter
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, BC, Canada.,Department of Urology, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Jonathan P Little
- School of Health and Exercise Sciences, University of British Columbia, Kelowna, BC, Canada
| | - Matt S Ramer
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, BC, Canada.,Department of Zoology, Faculty of Science, University of British Columbia, Vancouver, BC, Canada
| | - Andrei V Krassioukov
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, BC, Canada. .,Experimental Medicine, Department of Medicine, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada. .,Division of Physical Medicine and Rehabilitation, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada. .,GF Strong Rehabilitation Centre, Vancouver Coastal Health, Vancouver, BC, Canada.
| | - Christopher R West
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia, Vancouver, BC, Canada. .,Department of Cellular and Physiological Sciences, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada.
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12
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Antisense Therapy Attenuates Phospholamban p.(Arg14del) Cardiomyopathy in Mice and Reverses Protein Aggregation. Int J Mol Sci 2022; 23:ijms23052427. [PMID: 35269571 PMCID: PMC8909937 DOI: 10.3390/ijms23052427] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 02/16/2022] [Accepted: 02/21/2022] [Indexed: 12/26/2022] Open
Abstract
Inherited cardiomyopathy caused by the p.(Arg14del) pathogenic variant of the phospholamban (PLN) gene is characterized by intracardiomyocyte PLN aggregation and can lead to severe dilated cardiomyopathy. We recently reported that pre-emptive depletion of PLN attenuated heart failure (HF) in several cardiomyopathy models. Here, we investigated if administration of a Pln-targeting antisense oligonucleotide (ASO) could halt or reverse disease progression in mice with advanced PLN-R14del cardiomyopathy. To this aim, homozygous PLN-R14del (PLN-R14 Δ/Δ) mice received PLN-ASO injections starting at 5 or 6 weeks of age, in the presence of moderate or severe HF, respectively. Mice were monitored for another 4 months with echocardiographic analyses at several timepoints, after which cardiac tissues were examined for pathological remodeling. We found that vehicle-treated PLN-R14 Δ/Δ mice continued to develop severe HF, and reached a humane endpoint at 8.1 ± 0.5 weeks of age. Both early and late PLN-ASO administration halted further cardiac remodeling and dysfunction shortly after treatment start, resulting in a life span extension to at least 22 weeks of age. Earlier treatment initiation halted disease development sooner, resulting in better heart function and less remodeling at the study endpoint. PLN-ASO treatment almost completely eliminated PLN aggregates, and normalized levels of autophagic proteins. In conclusion, these findings indicate that PLN-ASO therapy may have beneficial outcomes in PLN-R14del cardiomyopathy when administered after disease onset. Although existing tissue damage was not reversed, further cardiomyopathy progression was stopped, and PLN aggregates were resolved.
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13
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Bossers GPL, Günthel M, van der Feen DE, Hagdorn QAJ, Koop AMC, van Duijvenboden K, Barnett P, Borgdorff MAJ, Christoffels VM, Silljé HHW, Berger RMF, Bartelds B. Neuregulin-1 enhances cell-cycle activity, delays cardiac fibrosis, and improves cardiac performance in rat pups with right ventricular pressure load. J Thorac Cardiovasc Surg 2021; 164:e493-e510. [PMID: 34922752 DOI: 10.1016/j.jtcvs.2021.10.045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 10/11/2021] [Accepted: 10/19/2021] [Indexed: 12/24/2022]
Abstract
OBJECTIVES Right ventricular (RV) failure is a leading cause of death in patients with congenital heart disease. RV failure is kept at bay during childhood. Limited proliferation of cardiomyocytes is present in the postnatal heart. We propose that cardiomyocyte proliferation improves RV adaptation to pressure load (PL). We studied adaptation in response to increased RV PL and the role of increased cardiomyocyte cell cycle activity (CCA) in rat pups growing into adulthood. METHODS We induced RV PL at day of weaning in rats (3 weeks; 30-40 g) by pulmonary artery banding and followed rats into adulthood (300 g). We performed histological analyses and RNA sequencing analysis. To study the effects of increased cardiomyocyte cell cycle activity, we administered neuregulin-1 (NRG1), a growth factor involved in cardiac development. RESULTS PL induced an increase in CCA, with subsequent decline of CCA (sham/PL at 4 weeks: 0.14%/0.83%; P = .04 and 8 weeks: 0.00%/0.00%; P = .484) and cardiac function (cardiac index: control/PL 4 weeks: 4.41/3.29; P = .468 and 8 weeks: 3.57/1.44; P = .024). RNA sequencing analysis revealed delayed maturation and increased CCA pathways. NRG1 stimulated CCA (PL vehicle/NRG1 at 2 weeks: 0.62%/2.28%; P = .003), improved cardiac function (cardiac index control vs vehicle/NRG1 at 2 weeks: 4.21 vs 3.07/4.17; P = .009/.705) and postponed fibrosis (control vs vehicle/NRG1 at 4 weeks: 1.66 vs 4.82%/2.97%; P = .009/.078) in RV PL rats during childhood. CONCLUSIONS RV PL during growth induces a transient CCA increase. Further CCA stimulation improves cardiac function and delays fibrosis. This proof-of-concept study shows that stimulation of CCA can improve RV adaptation to PL in the postnatal developing heart and might provide a new approach to preserve RV function in patients with congenital heart disease.
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Affiliation(s)
- Guido P L Bossers
- Center for Congenital Heart Diseases, Department of Pediatric Cardiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
| | - Marie Günthel
- Department of Medical Biology, Amsterdam Cardiovascular Sciences, Amsterdam UMC, Amsterdam, The Netherlands
| | - Diederik E van der Feen
- Center for Congenital Heart Diseases, Department of Pediatric Cardiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Quint A J Hagdorn
- Center for Congenital Heart Diseases, Department of Pediatric Cardiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Anne-Marie C Koop
- Center for Congenital Heart Diseases, Department of Pediatric Cardiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Karel van Duijvenboden
- Department of Medical Biology, Amsterdam Cardiovascular Sciences, Amsterdam UMC, Amsterdam, The Netherlands
| | - Phil Barnett
- Department of Medical Biology, Amsterdam Cardiovascular Sciences, Amsterdam UMC, Amsterdam, The Netherlands
| | - Marinus A J Borgdorff
- Center for Congenital Heart Diseases, Department of Pediatric Cardiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Vincent M Christoffels
- Department of Medical Biology, Amsterdam Cardiovascular Sciences, Amsterdam UMC, Amsterdam, The Netherlands
| | - Herman H W Silljé
- Department of Cardiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Rolf M F Berger
- Center for Congenital Heart Diseases, Department of Pediatric Cardiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Beatrijs Bartelds
- Center for Congenital Heart Diseases, Department of Pediatric Cardiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
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14
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Eijgenraam TR, Boogerd CJ, Stege NM, Oliveira Nunes Teixeira V, Dokter MM, Schmidt LE, Yin X, Theofilatos K, Mayr M, van der Meer P, van Rooij E, van der Velden J, Silljé HHW, de Boer RA. Protein Aggregation Is an Early Manifestation of Phospholamban p.(Arg14del)-Related Cardiomyopathy: Development of PLN-R14del-Related Cardiomyopathy. Circ Heart Fail 2021; 14:e008532. [PMID: 34587756 PMCID: PMC8589082 DOI: 10.1161/circheartfailure.121.008532] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
BACKGROUND The p.(Arg14del) pathogenic variant (R14del) of the PLN (phospholamban) gene is a prevalent cause of cardiomyopathy with heart failure. The exact underlying pathophysiology is unknown, and a suitable therapy is unavailable. We aim to identify molecular perturbations underlying this cardiomyopathy in a clinically relevant PLN-R14del mouse model. METHODS We investigated the progression of cardiomyopathy in PLN-R14Δ/Δ mice using echocardiography, ECG, and histological tissue analysis. RNA sequencing and mass spectrometry were performed on cardiac tissues at 3 (before the onset of disease), 5 (mild cardiomyopathy), and 8 (end stage) weeks of age. Data were compared with cardiac expression levels of mice that underwent myocardial ischemia-reperfusion or myocardial infarction surgery, in an effort to identify alterations that are specific to PLN-R14del-related cardiomyopathy. RESULTS At 3 weeks of age, PLN-R14Δ/Δ mice had normal cardiac function, but from the age of 4 weeks, we observed increased myocardial fibrosis and impaired global longitudinal strain. From 5 weeks onward, ventricular dilatation, decreased contractility, and diminished ECG voltages were observed. PLN protein aggregation was present before onset of functional deficits. Transcriptomics and proteomics revealed differential regulation of processes involved in remodeling, inflammation, and metabolic dysfunction, in part, similar to ischemic heart disease. Altered protein homeostasis pathways were identified exclusively in PLN-R14Δ/Δ mice, even before disease onset, in concert with aggregate formation. CONCLUSIONS We mapped the development of PLN-R14del-related cardiomyopathy and identified alterations in proteostasis and PLN protein aggregation among the first manifestations of this disease, which could possibly be a novel target for therapy.
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Affiliation(s)
- Tim R Eijgenraam
- Department of Cardiology, University of Groningen, University Medical Center Groningen, the Netherlands (T.R.E., N.M.S., V.O.N.T., M.M.D., P.v.d.M., H.H.W.S., R.A.d.B.)
| | - Cornelis J Boogerd
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences, University Medical Center Utrecht (C.J.B., E.v.R.)
| | - Nienke M Stege
- Department of Cardiology, University of Groningen, University Medical Center Groningen, the Netherlands (T.R.E., N.M.S., V.O.N.T., M.M.D., P.v.d.M., H.H.W.S., R.A.d.B.)
| | - Vivian Oliveira Nunes Teixeira
- Department of Cardiology, University of Groningen, University Medical Center Groningen, the Netherlands (T.R.E., N.M.S., V.O.N.T., M.M.D., P.v.d.M., H.H.W.S., R.A.d.B.)
| | - Martin M Dokter
- Department of Cardiology, University of Groningen, University Medical Center Groningen, the Netherlands (T.R.E., N.M.S., V.O.N.T., M.M.D., P.v.d.M., H.H.W.S., R.A.d.B.)
| | - Lukas E Schmidt
- King's British Heart Foundation Centre, King's College London, United Kingdom (L.E.S., X.Y., K.T., M.M.)
| | - Xiaoke Yin
- King's British Heart Foundation Centre, King's College London, United Kingdom (L.E.S., X.Y., K.T., M.M.)
| | - Konstantinos Theofilatos
- King's British Heart Foundation Centre, King's College London, United Kingdom (L.E.S., X.Y., K.T., M.M.)
| | - Manuel Mayr
- King's British Heart Foundation Centre, King's College London, United Kingdom (L.E.S., X.Y., K.T., M.M.)
| | - Peter van der Meer
- Department of Cardiology, University of Groningen, University Medical Center Groningen, the Netherlands (T.R.E., N.M.S., V.O.N.T., M.M.D., P.v.d.M., H.H.W.S., R.A.d.B.)
| | - Eva van Rooij
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences, University Medical Center Utrecht (C.J.B., E.v.R.)
| | - Jolanda van der Velden
- Department of Physiology, Vrije Universiteit, Amsterdam University Medical Center, Amsterdam Cardiovascular Sciences, the Netherlands (J.v.d.V.)
| | - Herman H W Silljé
- Department of Cardiology, University of Groningen, University Medical Center Groningen, the Netherlands (T.R.E., N.M.S., V.O.N.T., M.M.D., P.v.d.M., H.H.W.S., R.A.d.B.)
| | - Rudolf A de Boer
- Department of Cardiology, University of Groningen, University Medical Center Groningen, the Netherlands (T.R.E., N.M.S., V.O.N.T., M.M.D., P.v.d.M., H.H.W.S., R.A.d.B.)
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15
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Hegemann N, Primessnig U, Bode D, Wakula P, Beindorff N, Klopfleisch R, Michalick L, Grune J, Hohendanner F, Messroghli D, Pieske B, Kuebler WM, Heinzel FR. Right-ventricular dysfunction in HFpEF is linked to altered cardiomyocyte Ca 2+ homeostasis and myofilament sensitivity. ESC Heart Fail 2021; 8:3130-3144. [PMID: 34002482 PMCID: PMC8318431 DOI: 10.1002/ehf2.13419] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 04/27/2021] [Accepted: 04/30/2021] [Indexed: 12/17/2022] Open
Abstract
Aims Heart failure with preserved ejection fraction (HFpEF) is frequently (30%) associated with right ventricular (RV) dysfunction, which increases morbidity and mortality in these patients. Yet cellular mechanisms of RV remodelling and RV dysfunction in HFpEF are not well understood. Here, we evaluated RV cardiomyocyte function in a rat model of metabolically induced HFpEF. Methods and results Heart failure with preserved ejection fraction‐prone animals (ZSF‐1 obese) and control rats (Wistar Kyoto) were fed a high‐caloric diet for 13 weeks. Haemodynamic characterization by echocardiography and invasive catheterization was performed at 22 and 23 weeks of age, respectively. After sacrifice, organ morphometry, RV histology, isolated RV cardiomyocyte function, and calcium (Ca2+) transients were assessed. ZSF‐1 obese rats showed a HFpEF phenotype with left ventricular (LV) hypertrophy, LV diastolic dysfunction (including increased LV end‐diastolic pressures and E/e′ ratio), and preserved LV ejection fraction. ZSF‐1 obese animals developed RV dilatation (50% increased end‐diastolic area) and mildly impaired RV ejection fraction (42%) with evidence of RV hypertrophy. In isolated RV cardiomyocytes from ZSF‐1 obese rats, cell shortening amplitude was preserved, but cytosolic Ca2+ transient amplitude was reduced. In addition, augmentation of cytosolic Ca2+ release with increased stimulation frequency was lost in ZSF‐1 obese rats. Myofilament sensitivity was increased, while contractile kinetics were largely unaffected in intact isolated RV cardiomyocytes from ZSF‐1 obese rats. Western blot analysis revealed significantly increased phosphorylation of cardiac myosin‐binding protein C (Ser282 cMyBP‐C) but no change in phosphorylation of troponin I (Ser23, 24 TnI) in RV myocardium from ZSF‐1 obese rats. Conclusions Right ventricular dysfunction in obese ZSF‐1 rats with HFpEF is associated with intrinsic RV cardiomyocyte remodelling including reduced cytosolic Ca2+ amplitudes, loss of frequency‐dependent augmentation of Ca2+ release, and increased myofilament Ca2+ sensitivity.
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Affiliation(s)
- Niklas Hegemann
- Department of Internal Medicine and Cardiology, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, Berlin, 13353, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany.,Institute of Physiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Uwe Primessnig
- Department of Internal Medicine and Cardiology, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, Berlin, 13353, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany
| | - David Bode
- Department of Internal Medicine and Cardiology, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, Berlin, 13353, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany
| | - Paulina Wakula
- Department of Internal Medicine and Cardiology, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, Berlin, 13353, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany
| | - Nicola Beindorff
- Berlin Experimental Radionuclide Imaging Center (BERIC), Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Robert Klopfleisch
- Department of Veterinary Pathology, Free University of Berlin, Berlin, Germany
| | - Laura Michalick
- Institute of Physiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Jana Grune
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany.,Institute of Physiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Felix Hohendanner
- Department of Internal Medicine and Cardiology, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, Berlin, 13353, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany
| | - Daniel Messroghli
- Department of Internal Medicine and Cardiology, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, Berlin, 13353, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany.,Department of Internal Medicine and Cardiology, German Heart Center, Berlin, Germany
| | - Burkert Pieske
- Department of Internal Medicine and Cardiology, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, Berlin, 13353, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany.,Department of Internal Medicine and Cardiology, German Heart Center, Berlin, Germany
| | - Wolfgang M Kuebler
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany.,Institute of Physiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Frank R Heinzel
- Department of Internal Medicine and Cardiology, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, Berlin, 13353, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany
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16
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Intrinsic exercise capacity induces divergent vascular plasticity via arachidonic acid-mediated inflammatory pathways in female rats. Vascul Pharmacol 2021; 140:106862. [PMID: 33872803 DOI: 10.1016/j.vph.2021.106862] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 03/03/2021] [Accepted: 04/07/2021] [Indexed: 12/31/2022]
Abstract
Metabolic syndrome prevalence has increased among US adults, particularly among non-hispanic white and black women. Sedentary behavior often leads to chronic inflammation, a triggering factor of metabolic syndrome. Given that intrinsic exercise capacity is genetically inherited, we questioned if low-grade chronic inflammation would be present in a female rat model of low intrinsic exercise capacity-induced metabolic syndrome, while beneficial increase of resolution of inflammation would be present in a female rat model of high intrinsic exercise capacity. In the vascular system, two primary markers for inflammation and resolution of inflammation are cyclooxygenase (COX) and lipoxygenase (LOX), respectively. Our study focused on the novel hypothesis that untrained, inherited exercise capacity induces divergent vascular plasticity via changes in the delicate balance between COX and LOX inflammatory mediators. We used divergent rat strains with low (LCR) and high (HCR) aerobic running capacity. By using animals with contrasting intrinsic exercise capacities, it is possible to determine the exact triggers that lead to inherited vascular plasticity in female rats. We observed that female LCR displayed increased periovarian fat pad and body weight, which is congruent with their obesity-presenting phenotype. Furthermore, LCR presented with vascular hypocontractility and increased COX and LOX-derived pro-inflammatory factors. On the other hand, HCR presented with a "shutdown" of COX-induced vasoconstriction and enhanced resolution of inflammation to maintain vascular tone and homeostasis. In conclusion, LCR display low-grade chronic inflammation via increased COX activity. These results provide mechanistic clues as to why lower intrinsic aerobic capacity correlates with a predisposition to risk of vascular disease. Conversely, being born with higher intrinsic aerobic capacity is a significant factor for improved vascular physiology in female rats.
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17
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Edwards JM, Roy S, Galla SL, Tomcho JC, Bearss NR, Waigi EW, Mell B, Cheng X, Saha P, Vijay-Kumar M, McCarthy CG, Joe B, Wenceslau CF. FPR-1 (Formyl Peptide Receptor-1) Activation Promotes Spontaneous, Premature Hypertension in Dahl Salt-Sensitive Rats. Hypertension 2021; 77:1191-1202. [PMID: 33641367 DOI: 10.1161/hypertensionaha.120.16237] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Jonnelle M Edwards
- From the Department of Pharmacology and Physiology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
| | - Shaunak Roy
- From the Department of Pharmacology and Physiology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
| | - Sarah L Galla
- From the Department of Pharmacology and Physiology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
| | - Jeremy C Tomcho
- From the Department of Pharmacology and Physiology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
| | - Nicole R Bearss
- From the Department of Pharmacology and Physiology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
| | - Emily W Waigi
- From the Department of Pharmacology and Physiology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
| | - Blair Mell
- From the Department of Pharmacology and Physiology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
| | - Xi Cheng
- From the Department of Pharmacology and Physiology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
| | - Piu Saha
- From the Department of Pharmacology and Physiology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
| | - Matam Vijay-Kumar
- From the Department of Pharmacology and Physiology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
| | - Cameron G McCarthy
- From the Department of Pharmacology and Physiology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
| | - Bina Joe
- From the Department of Pharmacology and Physiology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
| | - Camilla F Wenceslau
- From the Department of Pharmacology and Physiology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
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18
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Hagdorn QAJ, Kurakula K, Koop AMC, Bossers GPL, Mavrogiannis E, van Leusden T, van der Feen DE, de Boer RA, Goumans MJTH, Berger RMF. Volume Load-Induced Right Ventricular Failure in Rats Is Not Associated With Myocardial Fibrosis. Front Physiol 2021; 12:557514. [PMID: 33716758 PMCID: PMC7952521 DOI: 10.3389/fphys.2021.557514] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 01/25/2021] [Indexed: 01/15/2023] Open
Abstract
Background Right ventricular (RV) function and failure are key determinants of morbidity and mortality in various cardiovascular diseases. Myocardial fibrosis is regarded as a contributing factor to heart failure, but its importance in RV failure has been challenged. This study aims to assess whether myocardial fibrosis drives the transition from compensated to decompensated volume load-induced RV dysfunction. Methods Wistar rats were subjected to aorto-caval shunt (ACS, n = 23) or sham (control, n = 15) surgery, and sacrificed after 1 month, 3 months, or 6 months. Echocardiography, RV pressure-volume analysis, assessment of gene expression and cardiac histology were performed. Results At 6 months, 6/8 ACS-rats (75%) showed clinical signs of RV failure (pleural effusion, ascites and/or liver edema), whereas at 1 month and 3 months, no signs of RV failure had developed yet. Cardiac output has increased two- to threefold and biventricular dilatation occurred, while LV ejection fraction gradually decreased. At 1 month and 3 months, RV end-systolic elastance (Ees) remained unaltered, but at 6 months, RV Ees had decreased substantially. In the RV, no oxidative stress, inflammation, pro-fibrotic signaling (TGFβ1 and pSMAD2/3), or fibrosis were present at any time point. Conclusions In the ACS rat model, long-term volume load was initially well tolerated at 1 month and 3 months, but induced overt clinical signs of end-stage RV failure at 6 months. However, no myocardial fibrosis or increased pro-fibrotic signaling had developed. These findings indicate that myocardial fibrosis is not involved in the transition from compensated to decompensated RV dysfunction in this model.
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Affiliation(s)
- Quint A J Hagdorn
- Center for Congenital Heart Diseases, Department of Pediatric Cardiology, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Kondababu Kurakula
- Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, Netherlands
| | - Anne-Marie C Koop
- Center for Congenital Heart Diseases, Department of Pediatric Cardiology, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Guido P L Bossers
- Center for Congenital Heart Diseases, Department of Pediatric Cardiology, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Emmanouil Mavrogiannis
- Center for Congenital Heart Diseases, Department of Pediatric Cardiology, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Tom van Leusden
- Center for Congenital Heart Diseases, Department of Pediatric Cardiology, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Diederik E van der Feen
- Center for Congenital Heart Diseases, Department of Pediatric Cardiology, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Rudolf A de Boer
- Department of Cardiology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Marie-José T H Goumans
- Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, Netherlands
| | - Rolf M F Berger
- Center for Congenital Heart Diseases, Department of Pediatric Cardiology, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
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19
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Roy S, Edwards JM, Tomcho JC, Schreckenberger Z, Bearss NR, Zhang Y, Morgan EE, Cheng X, Spegele AC, Vijay-Kumar M, McCarthy CG, Koch LG, Joe B, Wenceslau CF. Intrinsic Exercise Capacity and Mitochondrial DNA Lead to Opposing Vascular-Associated Risks. FUNCTION (OXFORD, ENGLAND) 2020; 2:zqaa029. [PMID: 33363281 PMCID: PMC7749784 DOI: 10.1093/function/zqaa029] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 10/30/2020] [Accepted: 11/02/2020] [Indexed: 01/06/2023]
Abstract
Exercise capacity is a strong predictor of all-cause morbidity and mortality in humans. However, the associated hemodynamic traits that link this valuable indicator to its subsequent disease risks are numerable. Additionally, exercise capacity has a substantial heritable component and genome-wide screening indicates a vast amount of nuclear and mitochondrial DNA (mtDNA) markers are significantly associated with traits of physical performance. A long-term selection experiment in rats confirms a divide for cardiovascular risks between low- and high-capacity runners (LCR and HCR, respectively), equipping us with a preclinical animal model to uncover new mechanisms. Here, we evaluated the LCR and HCR rat model system for differences in vascular function at the arterial resistance level. Consistent with the known divide between health and disease, we observed that LCR rats present with resistance artery and perivascular adipose tissue dysfunction compared to HCR rats that mimic qualities important for health, including improved vascular relaxation. Uniquely, we show by generating conplastic strains, which LCR males with mtDNA of female HCR (LCR-mtHCR/Tol) present with improved vascular function. Conversely, HCR-mtLCR/Tol rats displayed indices for cardiac dysfunction. The outcome of this study suggests that the interplay between the nuclear genome and the maternally inherited mitochondrial genome with high intrinsic exercise capacity is a significant factor for improved vascular physiology, and animal models developed on an interaction between nuclear and mtDNA are valuable new tools for probing vascular risk factors in the offspring.
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Affiliation(s)
- Shaunak Roy
- Department of Pharmacology and Physiology, University of Toledo College of Medicine and Life Sciences
| | - Jonnelle M Edwards
- Department of Pharmacology and Physiology, University of Toledo College of Medicine and Life Sciences
| | - Jeremy C Tomcho
- Department of Pharmacology and Physiology, University of Toledo College of Medicine and Life Sciences
| | - Zachary Schreckenberger
- Department of Pharmacology and Physiology, University of Toledo College of Medicine and Life Sciences
| | - Nicole R Bearss
- Department of Pharmacology and Physiology, University of Toledo College of Medicine and Life Sciences
| | - Youjie Zhang
- Department of Pharmacology and Physiology, University of Toledo College of Medicine and Life Sciences
| | - Eric E Morgan
- Department of Pharmacology and Physiology, University of Toledo College of Medicine and Life Sciences,Department of Radiology Nationwide Children's Hospital, OH, USA
| | - Xi Cheng
- Department of Pharmacology and Physiology, University of Toledo College of Medicine and Life Sciences
| | - Adam C Spegele
- Department of Pharmacology and Physiology, University of Toledo College of Medicine and Life Sciences
| | - Matam Vijay-Kumar
- Department of Pharmacology and Physiology, University of Toledo College of Medicine and Life Sciences
| | - Cameron G McCarthy
- Department of Pharmacology and Physiology, University of Toledo College of Medicine and Life Sciences
| | - Lauren G Koch
- Department of Pharmacology and Physiology, University of Toledo College of Medicine and Life Sciences
| | - Bina Joe
- Department of Pharmacology and Physiology, University of Toledo College of Medicine and Life Sciences
| | - Camilla Ferreira Wenceslau
- Department of Pharmacology and Physiology, University of Toledo College of Medicine and Life Sciences,Address correspondence to C.F.W. (e-mail: )
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20
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Joe B, McCarthy CG, Edwards JM, Cheng X, Chakraborty S, Yang T, Golonka RM, Mell B, Yeo JY, Bearss NR, Furtado J, Saha P, Yeoh BS, Vijay-Kumar M, Wenceslau CF. Microbiota Introduced to Germ-Free Rats Restores Vascular Contractility and Blood Pressure. Hypertension 2020; 76:1847-1855. [PMID: 33070663 DOI: 10.1161/hypertensionaha.120.15939] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Commensal gut microbiota are strongly correlated with host hemodynamic homeostasis but only broadly associated with cardiovascular health. This includes a general correspondence of quantitative and qualitative shifts in intestinal microbial communities found in hypertensive rat models and human patients. However, the mechanisms by which gut microbes contribute to the function of organs important for blood pressure (BP) control remain unanswered. To examine the direct effects of microbiota on BP, we conventionalized germ-free (GF) rats with specific pathogen-free rats for a short-term period of 10 days, which served as a model system to observe the dynamic responses when reconstituting the holobiome. The absence of microbiota in GF rats resulted with relative hypotension compared with their conventionalized counterparts, suggesting an obligatory role of microbiota in BP homeostasis. Hypotension observed in GF rats was accompanied by a marked reduction in vascular contractility. Both BP and vascular contractility were restored by the introduction of microbiota to GF rats, indicating that microbiota could impact BP through a vascular-dependent mechanism. This is further supported by the decrease in actin polymerization in arteries from GF rats. Improved vascular contractility in conventionalized GF rats, as indicated through stabilized actin filaments, was associated with an increase in cofilin phosphorylation. These data indicate that the vascular system senses the presence (or lack of) microbiota to maintain vascular tone via actin polymerization. Overall, these results constitute a fundamental discovery of the essential nature of microbiota in BP regulation.
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Affiliation(s)
- Bina Joe
- From the UT Microbiome Consortium, Center for Hypertension and Precision Medicine, Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH
| | - Cameron G McCarthy
- From the UT Microbiome Consortium, Center for Hypertension and Precision Medicine, Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH
| | - Jonnelle M Edwards
- From the UT Microbiome Consortium, Center for Hypertension and Precision Medicine, Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH
| | - Xi Cheng
- From the UT Microbiome Consortium, Center for Hypertension and Precision Medicine, Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH
| | - Saroj Chakraborty
- From the UT Microbiome Consortium, Center for Hypertension and Precision Medicine, Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH
| | - Tao Yang
- From the UT Microbiome Consortium, Center for Hypertension and Precision Medicine, Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH
| | - Rachel M Golonka
- From the UT Microbiome Consortium, Center for Hypertension and Precision Medicine, Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH
| | - Blair Mell
- From the UT Microbiome Consortium, Center for Hypertension and Precision Medicine, Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH
| | - Ji-Youn Yeo
- From the UT Microbiome Consortium, Center for Hypertension and Precision Medicine, Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH
| | - Nicole R Bearss
- From the UT Microbiome Consortium, Center for Hypertension and Precision Medicine, Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH
| | - Janara Furtado
- From the UT Microbiome Consortium, Center for Hypertension and Precision Medicine, Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH
| | - Piu Saha
- From the UT Microbiome Consortium, Center for Hypertension and Precision Medicine, Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH
| | - Beng San Yeoh
- From the UT Microbiome Consortium, Center for Hypertension and Precision Medicine, Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH
| | - Matam Vijay-Kumar
- From the UT Microbiome Consortium, Center for Hypertension and Precision Medicine, Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH
| | - Camilla F Wenceslau
- From the UT Microbiome Consortium, Center for Hypertension and Precision Medicine, Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, OH
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21
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Piek A, Suthahar N, Voors AA, de Boer RA, Silljé HHW. A combined bioinformatics, experimental and clinical approach to identify novel cardiac-specific heart failure biomarkers: is Dickkopf-3 (DKK3) a possible candidate? Eur J Heart Fail 2020; 22:2065-2074. [PMID: 32809235 PMCID: PMC7756877 DOI: 10.1002/ejhf.1988] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 07/15/2020] [Accepted: 08/01/2020] [Indexed: 12/11/2022] Open
Abstract
Aims Cardiac specificity provides an advantage in correlating heart failure (HF) biomarker plasma levels with indices of cardiac function and remodelling, as shown for natriuretic peptides. Using bioinformatics, we explored the cardiac specificity of secreted proteins and investigated in more detail the relationship of Dickkopf‐3 (DKK3) gene expression and DKK3 plasma concentrations with cardiac function and remodelling in (pre)clinical studies. Methods and results The cardiac specificity of secreted proteins was determined using RNAseq data for a large panel of organs and tissues. This showed that natriuretic peptides (NPPA and NPPB) are highly cardiac‐specific (>99%), whereas other HF biomarkers, including galectin‐3 (Gal‐3, LGALS3) and growth differentiation factor‐15 (GDF‐15), lack cardiac specificity (<4%). DKK3 was cardiac‐enriched (44%), warranting further investigation. In three different HF mouse models, cardiac Dkk3 expression was altered, but DKK3 plasma concentrations were not. In humans, DKK3 plasma concentrations were higher in HF patients (n = 2090) in comparison with age‐ and sex‐matched controls without HF (n = 240) (46.4 ng/mL vs. 36.3 ng/mL; P < 0.001). Multivariate regression analysis revealed that DKK3 was strongly associated with HF risk factors and comorbidities, including age, kidney function and atrial fibrillation. After correction for existing prediction models, DKK3 did not independently predict HF outcome [all‐cause mortality/HF hospitalization, hazard ratio 1.13 (0.79–1.61) per DKK3 doubling; P = 0.503]. Conclusions Of actively secreted HF biomarkers, only natriuretic peptides showed high cardiac specificity. Despite a cardiac specificity of 44%, secreted DKK3 had limited additional diagnostic and prognostic value.
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Affiliation(s)
- Arnold Piek
- Department of Cardiology, University Medical Centre Groningen, University of Groningen, Groningen, the Netherlands
| | - Navin Suthahar
- Department of Cardiology, University Medical Centre Groningen, University of Groningen, Groningen, the Netherlands
| | - Adriaan A Voors
- Department of Cardiology, University Medical Centre Groningen, University of Groningen, Groningen, the Netherlands
| | - Rudolf A de Boer
- Department of Cardiology, University Medical Centre Groningen, University of Groningen, Groningen, the Netherlands
| | - Herman H W Silljé
- Department of Cardiology, University Medical Centre Groningen, University of Groningen, Groningen, the Netherlands
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22
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Piek A, Koonen DPY, Schouten EM, Lindtstedt EL, Michaëlsson E, de Boer RA, Silljé HHW. Pharmacological myeloperoxidase (MPO) inhibition in an obese/hypertensive mouse model attenuates obesity and liver damage, but not cardiac remodeling. Sci Rep 2019; 9:18765. [PMID: 31822739 PMCID: PMC6904581 DOI: 10.1038/s41598-019-55263-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 11/25/2019] [Indexed: 02/06/2023] Open
Abstract
Lifestyle factors are important drivers of chronic diseases, including cardiovascular syndromes, with low grade inflammation as a central player. Attenuating myeloperoxidase (MPO) activity, an inflammatory enzyme associated with obesity, hypertension and heart failure, could have protective effects on multiple organs. Herein, the effects of the novel oral available MPO inhibitor AZM198 were studied in an obese/hypertensive mouse model which displays a cardiac phenotype. Eight week old male C57BL6/J mice received 16 weeks of high fat diet (HFD) combined with angiotensin II (AngII) infusion during the last 4 weeks, with low fat diet and saline infusion as control. Treated animals showed therapeutic AZM198 levels (2.1 µM), corresponding to 95% MPO inhibition. AZM198 reduced elevated circulating MPO levels in HFD/AngII mice to normal values. Independent of food intake, bodyweight increase and fat accumulation were attenuated by AZM198, alongside with reduced visceral adipose tissue (VAT) inflammation and attenuated severity of nonalcoholic steatohepatitis. The HFD/AngII perturbation caused impaired cardiac relaxation and contraction, and increased cardiac hypertrophy and fibrosis. AZM198 treatment did, however, not improve these cardiac parameters. Thus, AZM198 had positive effects on the main lipid controlling tissues in the body, namely adipose tissue and liver. This did, however, not directly result in improved cardiac function.
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Affiliation(s)
- Arnold Piek
- Department of Cardiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Debby P Y Koonen
- Department of Pediatrics, Section Molecular Genetics, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Elisabeth-Maria Schouten
- Department of Cardiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Eva L Lindtstedt
- Early Cardiovascular, Renal and Metabolism, R&D BioPharmaceuticals, AstraZeneca, Gothenburg, Sweden
| | - Erik Michaëlsson
- Early Cardiovascular, Renal and Metabolism, R&D BioPharmaceuticals, AstraZeneca, Gothenburg, Sweden
| | - Rudolf A de Boer
- Department of Cardiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Herman H W Silljé
- Department of Cardiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
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