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Mierzejewska P, Di Marzo N, Zabielska-Kaczorowska MA, Walczak I, Slominska EM, Lavitrano M, Giovannoni R, Kutryb-Zajac B, Smolenski RT. Endothelial Effects of Simultaneous Expression of Human HO-1, E5NT, and ENTPD1 in a Mouse. Pharmaceuticals (Basel) 2023; 16:1409. [PMID: 37895880 PMCID: PMC10610121 DOI: 10.3390/ph16101409] [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: 09/01/2023] [Revised: 09/26/2023] [Accepted: 09/28/2023] [Indexed: 10/29/2023] Open
Abstract
The vascular endothelium is key target for immune and thrombotic responses that has to be controlled in successful xenotransplantation. Several genes were identified that, if induced or overexpressed, help to regulate the inflammatory response and preserve the transplanted organ function and metabolism. However, few studies addressed combined expression of such genes. The aim of this work was to evaluate in vivo the effects of the simultaneous expression of three human genes in a mouse generated using the multi-cistronic F2A technology. Male 3-month-old mice that express human heme oxygenase 1 (hHO-1), ecto-5'-nucleotidase (hE5NT), and ecto-nucleoside triphosphate diphosphohydrolase 1 (hENTPD1) (Transgenic) were compared to wild-type FVB mice (Control). Background analysis include extracellular nucleotide catabolism enzymes profile on the aortic surface, blood nucleotide concentration, and serum L-arginine metabolites. Furthermore, inflammatory stress induced by LPS in transgenic and control mice was used to characterize interleukin 6 (IL-6) and adhesion molecules endothelium permeability responses. Transgenic mice had significantly higher rates of extracellular adenosine triphosphate and adenosine monophosphate hydrolysis on the aortic surface in comparison to control. Increased levels of blood AMP and adenosine were also noticed in transgenics. Moreover, transgenic animals demonstrated the decrease in serum monomethyl-L-arginine level and a higher L-arginine/monomethyl-L-arginine ratio. Importantly, significantly decreased serum IL-6, and adhesion molecule levels were observed in transgenic mice in comparison to control after LPS treatment. Furthermore, reduced endothelial permeability in the LPS-treated transgenic mice was noted as compared to LPS-treated control. The human enzymes (hHO-1, hE5NT, hENTPD1) simultaneously encoded in transgenic mice demonstrated benefits in several biochemical and functional aspects of endothelium. This is consistent in use of this approach in the context of xenotransplantation.
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Affiliation(s)
- Paulina Mierzejewska
- Department of Biochemistry, Medical University of Gdansk, Debinki 1 St., 80-211 Gdansk, Poland; (P.M.); (M.A.Z.-K.); (I.W.); (E.M.S.)
| | - Noemi Di Marzo
- School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy; (N.D.M.); (M.L.); (R.G.)
| | - Magdalena A. Zabielska-Kaczorowska
- Department of Biochemistry, Medical University of Gdansk, Debinki 1 St., 80-211 Gdansk, Poland; (P.M.); (M.A.Z.-K.); (I.W.); (E.M.S.)
- Department of Physiology, Medical University of Gdansk, Debinki 1 St., 80-211 Gdansk, Poland
| | - Iga Walczak
- Department of Biochemistry, Medical University of Gdansk, Debinki 1 St., 80-211 Gdansk, Poland; (P.M.); (M.A.Z.-K.); (I.W.); (E.M.S.)
| | - Ewa M. Slominska
- Department of Biochemistry, Medical University of Gdansk, Debinki 1 St., 80-211 Gdansk, Poland; (P.M.); (M.A.Z.-K.); (I.W.); (E.M.S.)
| | - Marialuisa Lavitrano
- School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy; (N.D.M.); (M.L.); (R.G.)
| | - Roberto Giovannoni
- School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy; (N.D.M.); (M.L.); (R.G.)
- Department of Biology, University of Pisa, 56026 Pisa, Italy
| | - Barbara Kutryb-Zajac
- Department of Biochemistry, Medical University of Gdansk, Debinki 1 St., 80-211 Gdansk, Poland; (P.M.); (M.A.Z.-K.); (I.W.); (E.M.S.)
| | - Ryszard T. Smolenski
- Department of Biochemistry, Medical University of Gdansk, Debinki 1 St., 80-211 Gdansk, Poland; (P.M.); (M.A.Z.-K.); (I.W.); (E.M.S.)
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2
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Majewski M, Klett-Mingo M, Verdasco-Martín CM, Otero C, Ferrer M. Spirulina extract improves age-induced vascular dysfunction. PHARMACEUTICAL BIOLOGY 2022; 60:627-637. [PMID: 35294322 PMCID: PMC8933018 DOI: 10.1080/13880209.2022.2047209] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
CONTEXT Vascular dysfunction is considered a hallmark of ageing that has been associated with altered vasomotor responses, in which nitric oxide (NO) and reactive oxygen species participate. The consumption of Spirulina extracts, with antioxidant properties, increased recently. OBJECTIVE This study investigates the effect of Spirulina aqueous extract (SAE) on the vascular function of the aorta from aged rats. MATERIALS AND METHODS Aortic segments from aged male Sprague-Dawley rats (20-22 months old) were exposed to SAE (0.1% w/v, for 3 h) to analyse: (i) the vasodilator response induced by acetylcholine (ACh), by the NO donor sodium nitroprusside (SNP), by the carbon monoxide releasing molecule (CORM) and by the KATP channel opener, cromakalim (CK); (ii) the vasoconstrictor response induced by KCl and noradrenaline (NA); (iii) the production of NO and superoxide anion, and (iv) the expression of the p-eNOS and HO-1 proteins. RESULTS Incubation with SAE increased the expression of p-eNOS (1.6-fold) and HO-1 (2.0-fold), enhanced NO release (1.4-fold in basal and 1.9-fold in ACh-stimulated conditions) while decreased the production of superoxide (0.7-fold). SAE also increased the sensitivity (measured as pEC50) to ACh (control: -7.06 ± 0.11; SAE: -8.16 ± 0.21), SNP (control: -7.96 ± 0.16; SAE: -9.11 ± 0.14) and CK (control: -7.05 ± 0.39; SAE: -8.29 ± 0.53), and potentiated the response to KCl (1.3-fold) and to NA (1.7-fold). CONCLUSION The antioxidant properties of SAE improved the vasomotor responses of aorta from aged rats. These results may support the use of Spirulina as a protection against vascular dysfunction.
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Affiliation(s)
- Michal Majewski
- Departamento de Fisiología, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid, Spain
- Department of Pharmacology and Toxicology, Faculty of Medicine, University of Warmia and Mazury, Olsztyn, Poland
| | - Mercedes Klett-Mingo
- Departamento de Fisiología, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid, Spain
| | - Carlos M. Verdasco-Martín
- Departamento de Biocatálisis, Instituto de Catálisis y Petroleoquímica, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Cristina Otero
- Departamento de Biocatálisis, Instituto de Catálisis y Petroleoquímica, Consejo Superior de Investigaciones Científicas, Madrid, Spain
- Cristina Otero Departamento de Biocatálisis, Instituto de Catálisis y Petroleoquímica, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Mercedes Ferrer
- Departamento de Fisiología, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid, Spain
- Instituto de Investigación Hospital Universitario La Paz (IdiPAZ) Madrid, Madrid, Spain
- CONTACT Mercedes Ferrer Departamento de Fisiología, Facultad de Medicina, UAM. C/Arzobispo Morcillo, 4, 28029Madrid, Spain
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3
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Álvarez-Maestro M, Eguibar A, Chanca P, Klett-Mingo M, Gómez Rivas J, Buño-Soto A, de Bethencourt FR, Ferrer M. Androgen Deprivation Therapy in Patients With Prostate Cancer Increases Serum Levels of Thromboxane A 2: Cardiovascular Implications. Front Cardiovasc Med 2021; 8:653126. [PMID: 33928136 PMCID: PMC8076684 DOI: 10.3389/fcvm.2021.653126] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 03/15/2021] [Indexed: 11/13/2022] Open
Abstract
Introduction: Androgens have been described as important players in the regulation of vascular function/structure through their action on the release and effect of vasoactive factors, such as prostanoids. Patients with prostate cancer (PCa) under androgen deprivation therapies (ADTs) present increased risk of cardiovascular mortality. Since thromboxane A2 (TXA2) is one of the most studied prostanoids and its involvement in different cardiovascular diseases has been described, the aim of this study was to investigate: (i) the effect of ADT on the serum levels of TXA2 in PCa patients and its possible link to the redox status and (ii) the effect of the non-hydrolyzable TXA2 analog U-46619 on the function of the aorta of male rats. Methods: The levels of TXA2 and total antioxidant status in 50 healthy subjects, 54 PCa patients, and 57 PCa under ADT were evaluated. These determinations were accompanied by levels of testosterone and C-reactive protein as an inflammation marker. In aortic segments from male rats, the U46619-induced effects on: (i) the vasomotor responses to acetylcholine (ACh), to the NO donor sodium nitroprusside (SNP), to the carbon monoxide-releasing molecule-3 (CORM-3), and to noradrenaline (NA) and (ii) the expression of cyclooxygenase-2 (COX-2), heme oxygenase-1 (HO-1), and phosphorylated ERK1/2 were analyzed. Results: The serum level of TXA2 in patients with PCa was increased with respect to healthy subjects, which was further increased by ADT. There was no modification in the total antioxidant status among the three experimental groups. In aortic segments from male rats, the TXA2 analog decreased the endothelium-dependent relaxation and the sensitivity of smooth muscle cells to NO, while it increased the vasoconstriction induced by NA; the expression of COX-2, HO-1, and pERK1/2 was also increased. Conclusions: ADT increased, along with other inflammatory/oxidative markers, the serum levels of TXA2. The fact that TXA2 negatively impacts the vascular function of the aorta of healthy male rats suggests that inhibition of TXA2-mediated events could be considered a potential strategy to protect the cardiovascular system.
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Affiliation(s)
- Mario Álvarez-Maestro
- Servicio de Urología, Hospital Universitario La Paz, Madrid, Spain.,Grupo de Investigación en Urología, IdiPAZ, Madrid, Spain
| | - Aritz Eguibar
- Servicio de Urología, Hospital Universitario La Paz, Madrid, Spain
| | - Patricia Chanca
- Servicio de Análisis Clínicos, Hospital Universitario La Paz, Madrid, Spain
| | | | - Juan Gómez Rivas
- Departamento de Urología, Hospital Clínico San Carlos, Madrid, Spain
| | - Antonio Buño-Soto
- Servicio de Análisis Clínicos, Hospital Universitario La Paz, Madrid, Spain.,Grupo de Investigación en Neonatología, IdiPAZ, Madrid, Spain
| | - Fermín R de Bethencourt
- Servicio de Urología, Hospital Universitario La Paz, Madrid, Spain.,Grupo de Investigación en Urología, IdiPAZ, Madrid, Spain
| | - Mercedes Ferrer
- Grupo de Investigación en Urología, IdiPAZ, Madrid, Spain.,Departamento de Fisiología, Facultad de Medicina, UAM, Madrid, Spain
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4
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Villalpando DM, Verdasco-Martín CM, Plaza I, Gómez-Rivas J, R de Bethencourt F, Villarroel M, García JL, Otero C, Ferrer M. Beneficial Effects of Spirulina Aqueous Extract on Vasodilator Function of Arteries from Hypertensive Rats. Int J Vasc Med 2020; 2020:6657077. [PMID: 33457015 PMCID: PMC7787865 DOI: 10.1155/2020/6657077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 11/07/2020] [Accepted: 11/25/2020] [Indexed: 11/17/2022] Open
Abstract
Hypertension is a multifactorial disorder considered one of the major causes of premature death worldwide. This pathology is associated with vascular functional/structural alterations in which nitric oxide (NO) and oxygen reactive species participate. On the other hand, the use of microalgae extracts in the treatment of cardiovascular diseases is increasing. Based on the antioxidant and antihypertensive properties of Spirulina, this study aims to investigate the effect of an aqueous extract of Spirulina on the vasodilator function of the aorta from spontaneously hypertensive rats (SHR), analyzing the functional role of NO. For this, aortic segments from male SHR were divided into two groups, one control and the other exposed to an Spirulina aqueous extract (0.1% w/v, for 3 hours), to analyze (i) the production of NO, superoxide anion, and hydrogen peroxide; (ii) the vasodilator response induced by acetylcholine (ACh), by the NO donor and sodium nitroprusside (SNP), and by the KATP channel opener and pinacidil; and (iii) the expression of the p-Akt, p-eNOS, and HO-1 proteins. The results showed that the aqueous Spirulina extract (i) increased the production of NO, did not significantly modify that of superoxide, while decreased that of hydrogen peroxide; (ii) increased the vasodilatory responses induced by ACh, NPS, and pinacidil; and (iii) increased the expression of p-Akt and HO-1. These results suggest that incubation with the aqueous Spirulina extract improves the vascular function of arteries from SHR by increasing the release/bioavailability/function of NO. Increased KATP channel activation and expression of pAkt and HO-1 appear to be participating in these actions.
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Affiliation(s)
- Diva M. Villalpando
- Departamento de Fisiología, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid, Spain
| | - Carlos M. Verdasco-Martín
- Departamento de Biocatálisis, Instituto de Catálisis y Petroleoquímica, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Ignacio Plaza
- Departamento de Producción Agraria, ETSIAAB, Universidad Politécnica de Madrid, Madrid, Spain
| | - Juan Gómez-Rivas
- Servicio de Urología, Hospital Universitario La Paz, Madrid, Spain
- Instituto de Investigación Hospital Universitario La Paz (IdiPAZ), Madrid, Spain
| | - Fermín R de Bethencourt
- Servicio de Urología, Hospital Universitario La Paz, Madrid, Spain
- Instituto de Investigación Hospital Universitario La Paz (IdiPAZ), Madrid, Spain
| | - Morris Villarroel
- Departamento de Producción Agraria, ETSIAAB, Universidad Politécnica de Madrid, Madrid, Spain
| | - José L. García
- Centro de Investigaciones Biológicas Margarita Salas, Biotecnología Medioambiental, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Cristina Otero
- Departamento de Biocatálisis, Instituto de Catálisis y Petroleoquímica, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Mercedes Ferrer
- Departamento de Fisiología, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid, Spain
- Instituto de Investigación Hospital Universitario La Paz (IdiPAZ), Madrid, Spain
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5
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Bondareva O, Tsaryk R, Bojovic V, Odenthal-Schnittler M, Siekmann AF, Schnittler HJ. Identification of atheroprone shear stress responsive regulatory elements in endothelial cells. Cardiovasc Res 2020; 115:1487-1499. [PMID: 30785199 DOI: 10.1093/cvr/cvz027] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 12/14/2018] [Accepted: 02/19/2019] [Indexed: 12/21/2022] Open
Abstract
AIMS Oscillatory shear stress (OSS) is an atheroprone haemodynamic force that occurs in areas of vessel irregularities and is implicated in the pathogenesis of atherosclerosis. Changes in signalling and transcriptional programme in response to OSS have been vigorously studied; however, the underlying changes in the chromatin landscape controlling transcription remain to be elucidated. Here, we investigated the changes in the regulatory element (RE) landscape of endothelial cells under atheroprone OSS conditions in an in vitro model. METHODS AND RESULTS Analyses of H3K27ac chromatin immunoprecipitation-Seq enrichment and RNA-Seq in primary human umbilical vein endothelial cells 6 h after onset of OSS identified 2806 differential responsive REs and 33 differentially expressed genes compared with control cells kept under static conditions. Furthermore, gene ontology analyses of putative RE-associated genes uncovered enrichment of WNT/HIPPO pathway and cytoskeleton reorganization signatures. Transcription factor (TF) binding motif analysis within RE sequences identified over-representation of ETS, Zinc finger, and activator protein 1 TF families that regulate cell cycle, proliferation, and apoptosis, implicating them in the development of atherosclerosis. Importantly, we confirmed the activation of EGR1 as well as the YAP/TAZ complex early (6 h) after onset of OSS in both cultured human vein and artery endothelial cells and, by undertaking luciferase assays, functionally verified their role in RE activation in response to OSS. CONCLUSIONS Based on the identification and verification of specific responsive REs early upon OSS exposure, we propose an expanded mechanism of how OSS might contribute to the development of atherosclerosis.
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Affiliation(s)
- Olga Bondareva
- Institute of Anatomy and Vascular Biology, Faculty of Medicine, Westfälische Wilhelms-Universität Münster, Vesaliusweg 2-4, Münster, Germany.,Cells-in-Motion Cluster of Excellence (EXC 1003 - CiM), Westfälische Wilhelms University of Münster, Waldeyerstrasse 15, Münster, Germany
| | - Roman Tsaryk
- Cells-in-Motion Cluster of Excellence (EXC 1003 - CiM), Westfälische Wilhelms University of Münster, Waldeyerstrasse 15, Münster, Germany.,Max Planck Institute for Molecular Biomedicine, Röntgenstrasse 20, 48149 Münster, Germany
| | - Vesna Bojovic
- Institute of Anatomy and Vascular Biology, Faculty of Medicine, Westfälische Wilhelms-Universität Münster, Vesaliusweg 2-4, Münster, Germany
| | - Maria Odenthal-Schnittler
- Institute of Anatomy and Vascular Biology, Faculty of Medicine, Westfälische Wilhelms-Universität Münster, Vesaliusweg 2-4, Münster, Germany.,Department of Ophthalmology, Westfälische Wilhelms University of Münster, Faculty of Medicine, Domagkstrasse 15, Muenster, Germany
| | - Arndt F Siekmann
- Cells-in-Motion Cluster of Excellence (EXC 1003 - CiM), Westfälische Wilhelms University of Münster, Waldeyerstrasse 15, Münster, Germany.,Max Planck Institute for Molecular Biomedicine, Röntgenstrasse 20, 48149 Münster, Germany.,Department of Cell and Developmental Biology and Cardiovascular Institute, Perelman School of Medicine at the University of Pennsylvania, 421 Curie Boulevard, Philadelphia, Pennsylvania, USA
| | - Hans-J Schnittler
- Institute of Anatomy and Vascular Biology, Faculty of Medicine, Westfälische Wilhelms-Universität Münster, Vesaliusweg 2-4, Münster, Germany.,Cells-in-Motion Cluster of Excellence (EXC 1003 - CiM), Westfälische Wilhelms University of Münster, Waldeyerstrasse 15, Münster, Germany
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6
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Nath KA, Grande JP, Belcher JD, Garovic VD, Croatt AJ, Hillestad ML, Barry MA, Nath MC, Regan RF, Vercellotti GM. Antithrombotic effects of heme-degrading and heme-binding proteins. Am J Physiol Heart Circ Physiol 2020; 318:H671-H681. [PMID: 32004074 DOI: 10.1152/ajpheart.00280.2019] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In the murine venous thrombosis model induced by ligation of the inferior vena cava (IVCL), genetic deficiency of heme oxygenase-1 (HO-1) increases clot size. This study examined whether induction of HO-1 or administration of its products reduces thrombosis. Venous HO-1 upregulation by gene delivery reduced clot size, as did products of HO activity, biliverdin, and carbon monoxide. Induction of HO-1 by hemin reduced clot formation, clot size, and upregulation of plasminogen activator inhibitor-1 (PAI-1) that occurs in the IVCL model, while leaving urokinase plasminogen activator (uPA) and tissue plasminogen activator (tPA) expression unaltered. The reductive effect of hemin on clot size required HO activity. The IVCL model exhibited relatively high concentrations of heme that peaked just before maximum clot size, then declined as clot size decreased. Administration of hemin decreased heme concentration in the IVCL model. HO-2 mRNA was induced twofold in the IVCL model (vs. 40-fold HO-1 induction), but clot size was not increased in HO-2-/- mice compared with HO-2+/+ mice. Hemopexin, the major heme-binding protein, was induced in the IVCL model, and clot size was increased in hemopexin-/- mice compared with hemopexin+/+ mice. We conclude that in the IVCL model, the heme-degrading protein HO-1 and HO products inhibit thrombus formation, as does the heme-binding protein, hemopexin. The reductive effects of hemin administration require HO activity and are mediated, in part, by reducing PAI-1 upregulation in the IVCL model. We speculate that HO-1, HO, and hemopexin reduce clot size by restraining the increase in clot concentration of heme (now recognized as a procoagulant) that otherwise occurs.NEW & NOTEWORTHY This study provides conclusive evidence that two proteins, one heme-degrading and the other heme-binding, inhibit clot formation. This may serve as a new therapeutic strategy in preventing and treating venous thromboembolic disease.
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Affiliation(s)
- Karl A Nath
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota
| | - Joseph P Grande
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota
| | - John D Belcher
- Division of Hematology, Oncology and Transplantation, University of Minnesota, Minneapolis, Minnesota
| | - Vesna D Garovic
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota
| | - Anthony J Croatt
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota
| | | | - Michael A Barry
- Division of Infectious Diseases, Mayo Clinic, Rochester, Minnesota
| | - Meryl C Nath
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota
| | - Raymond F Regan
- Department of Emergency Medicine, University of Maryland School of Medicine, Baltimore, Maryland
| | - Gregory M Vercellotti
- Division of Hematology, Oncology and Transplantation, University of Minnesota, Minneapolis, Minnesota
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7
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Nath KA, Garovic VD, Grande JP, Croatt AJ, Ackerman AW, Farrugia G, Katusic ZS, Belcher JD, Vercellotti GM. Heme oxygenase-2 protects against ischemic acute kidney injury: influence of age and sex. Am J Physiol Renal Physiol 2019; 317:F695-F704. [PMID: 31215802 PMCID: PMC6842883 DOI: 10.1152/ajprenal.00085.2019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 06/13/2019] [Accepted: 06/17/2019] [Indexed: 01/01/2023] Open
Abstract
Heme oxygenase (HO) activity is exhibited by inducible (HO-1) and constitutive (HO-2) proteins. HO-1 protects against ischemic and nephrotoxic acute kidney injury (AKI). We have previously demonstrated that HO-2 protects against heme protein-induced AKI. The present study examined whether HO-2 is protective in ischemic AKI. Renal ischemia was imposed on young and aged HO-2+/+ and HO-2-/- mice. On days 1 and 2 after renal ischemia, there were no significant differences in renal function between young male HO-2+/+ and HO-2-/- mice, between young female HO-2+/+ and HO-2-/- mice, or between aged female HO-2+/+ and HO-2-/- mice. However, in aged male mice, HO-2 deficiency worsened renal function on days 1 and 2 after ischemic AKI, and, on day 2 after ischemia, such deficiency augmented upregulation of injury-related genes and worsened histological injury. Renal HO activity was markedly decreased in unstressed aged male HO-2-/- mice and remained so after ischemia, despite exaggerated HO-1 induction in HO-2-/- mice after ischemia. Such exacerbation of deficiency of HO-2 protein and HO activity may reflect phosphorylated STAT3, as activation of this proinflammatory transcription factor was accentuated early after ischemia in aged male HO-2-/- mice. This exacerbation may not reflect impaired induction of nephroprotectant genes, since the induction of HO-1, sirtuin 1, and β-catenin was accentuated in aged male HO-2-/- mice after ischemia. We conclude that aged male mice are hypersensitive to ischemic AKI and that HO-2 mitigates such sensitivity. We speculate that this protective effect of HO-2 may be mediated, at least in part, by suppression of phosphorylated STAT3-dependent signaling.
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Affiliation(s)
- Karl A Nath
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota
| | - Vesna D Garovic
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota
| | | | - Anthony J Croatt
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota
| | - Allan W Ackerman
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota
| | - Gianrico Farrugia
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | | | - John D Belcher
- Division of Hematology, Oncology, and Transplantation, University of Minnesota, Minneapolis, Minnesota
| | - Gregory M Vercellotti
- Division of Hematology, Oncology, and Transplantation, University of Minnesota, Minneapolis, Minnesota
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8
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Drummond GS, Baum J, Greenberg M, Lewis D, Abraham NG. HO-1 overexpression and underexpression: Clinical implications. Arch Biochem Biophys 2019; 673:108073. [PMID: 31425676 DOI: 10.1016/j.abb.2019.108073] [Citation(s) in RCA: 100] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 07/23/2019] [Accepted: 08/10/2019] [Indexed: 12/11/2022]
Abstract
In this review we examine the effects of both over- and under-production of heme oxygenase-1 (HO-1) and HO activity on a broad spectrum of biological systems and on vascular disease. In a few instances e.g., neonatal jaundice, overproduction of HO-1 and increased HO activity results in elevated levels of bilirubin requiring clinical intervention with inhibitors of HO activity. In contrast HO-1 levels and HO activity are low in obesity and the HO system responds to mitigate the deleterious effects of oxidative stress through increased levels of bilirubin (anti-inflammatory) and CO (anti-apoptotic) and decreased levels of heme (pro-oxidant). Site specific HO-1 overexpression diminishes adipocyte terminal differentiation and lipid accumulation of obesity mediated release of inflammatory molecules. A series of diverse strategies have been implemented that focus on increasing HO-1 and HO activity that are central to reversing the clinical complications associated with diseases including, obesity, metabolic syndrome and vascular disease.
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Affiliation(s)
- George S Drummond
- Department of Pharmacology, New York Medical College, Valhalla, NY, 10595, USA
| | - Jeffrey Baum
- Department of Medicine, New York Medical College, Valhalla, NY, 10595, USA; Department of Pharmacology, New York Medical College, Valhalla, NY, 10595, USA
| | - Menachem Greenberg
- Department of Medicine, New York Medical College, Valhalla, NY, 10595, USA; Department of Pharmacology, New York Medical College, Valhalla, NY, 10595, USA
| | - David Lewis
- Department of Medicine, New York Medical College, Valhalla, NY, 10595, USA; Department of Pharmacology, New York Medical College, Valhalla, NY, 10595, USA
| | - Nader G Abraham
- Department of Medicine, New York Medical College, Valhalla, NY, 10595, USA; Department of Pharmacology, New York Medical College, Valhalla, NY, 10595, USA; Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, 25701, USA.
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9
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Micro-RNA-Regulated Proangiogenic Signaling in Arteriovenous Loops in Patients with Combined Vascular and Soft-Tissue Reconstructions: Revisiting the Nutrient Flap Concept. Plast Reconstr Surg 2019; 142:489e-502e. [PMID: 29979372 DOI: 10.1097/prs.0000000000004750] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND The placement of arteriovenous loops can enable microvascular anastomoses of free flaps when recipient vessels are scarce. In animal models, elevated fluid shear stress in arteriovenous loops promotes neoangiogenesis. Anecdotal reports in patients indicate that vein grafts used in free flap reconstructions of ischemic lower extremities are able to induce capillary formation. However, flow-stimulated angiogenesis has never been systematically investigated in humans, and it is unclear whether shear stress alters proangiogenic signaling pathways within the vascular wall of human arteriovenous loops. METHODS Eight patients with lower extremity soft-tissue defects underwent two-stage reconstruction with arteriovenous loop placement, and free flap anastomoses to the loops 10 to 14 days later. Micro-RNA (miRNA) and gene expression profiles were determined in tissue samples harvested from vein grafts of arteriovenous loops by microarray analysis and quantitative real-time polymerase chain reaction. Samples from untreated veins served as controls. RESULTS A strong deregulation of miRNA and gene expression was detected in arteriovenous loops, showing an overexpression of angiopoietic cytokines, oxygenation-associated genes, vascular growth factors, and connexin-43. The authors discovered inverse correlations along with validated and bioinformatically predicted interactions between angiogenesis-regulating genes and miRNAs in arteriovenous loops. CONCLUSIONS The authors' findings demonstrate that elevated shear stress triggers proangiogenic signaling pathways in human venous tissue, indicating that arteriovenous loops may have the ability to induce neoangiogenesis in humans. The authors' data corroborate the nutrient flap hypothesis and provide a molecular background for arteriovenous loop-based tissue engineering with potential clinical applications for soft-tissue defect reconstruction.
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10
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Henn D, Abu-Halima M, Wermke D, Falkner F, Thomas B, Köpple C, Ludwig N, Schulte M, Brockmann MA, Kim YJ, Sacks JM, Kneser U, Keller A, Meese E, Schmidt VJ. MicroRNA-regulated pathways of flow-stimulated angiogenesis and vascular remodeling in vivo. J Transl Med 2019; 17:22. [PMID: 30635008 PMCID: PMC6330440 DOI: 10.1186/s12967-019-1767-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Accepted: 01/02/2019] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Vascular shear stress promotes endothelial cell sprouting in vitro. The impact of hemodynamic forces on microRNA (miRNA) and gene expression within growing vascular networks in vivo, however, remain poorly investigated. Arteriovenous (AV) shunts are an established model for induction of neoangiogenesis in vivo and can serve as a tool for analysis of hemodynamic effects on miRNA and gene expression profiles over time. METHODS AV shunts were microsurgically created in rats and explanted on postoperative days 5, 10 and 15. Neoangiogenesis was confirmed by histologic analysis and micro-computed tomography. MiRNA and gene expression profiles were determined in tissue specimens from AV shunts by microarray analysis and quantitative real-time polymerase chain reaction and compared with sham-operated veins by bioinformatics analysis. Changes in protein expression within AV shunt endothelial cells were determined by immunohistochemistry. RESULTS Samples from AV shunts exhibited a strong overexpression of proangiogenic cytokines, oxygenation-associated genes (HIF1A, HMOX1), and angiopoetic growth factors. Significant inverse correlations of the expressions of miR-223-3p, miR-130b-3p, miR-19b-3p, miR-449a-5p, and miR-511-3p which were up-regulated in AV shunts, and miR-27b-3p, miR-10b-5p, let-7b-5p, and let-7c-5p, which were down-regulated in AV shunts, with their predicted interacting targets C-X-C chemokine receptor 2 (CXCR2), interleukin-1 alpha (IL1A), ephrin receptor kinase 2 (EPHA2), synaptojanin-2 binding protein (SYNJ2BP), forkhead box C1 (FOXC1) were present. CXCL2 and IL1A overexpression in AV shunt endothelium was confirmed at the protein level by immunohistochemistry. CONCLUSIONS Our data indicate that flow-stimulated angiogenesis is determined by an upregulation of cytokines, oxygenation associated genes and miRNA-dependent regulation of FOXC1, EPHA2 and SYNJ2BP.
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Affiliation(s)
- Dominic Henn
- Department of Hand, Plastic and Reconstructive Surgery, University of Heidelberg, BG Trauma Center Ludwigshafen, Ludwig-Guttmann Str. 13, 67071, Ludwigshafen, Germany
| | - Masood Abu-Halima
- Institute of Human Genetics, Saarland University, Homburg-Saar, Germany
| | - Dominik Wermke
- Institute of Clinical Bioinformatics, Saarland University, Saarbruecken, Germany
| | - Florian Falkner
- Department of Hand, Plastic and Reconstructive Surgery, University of Heidelberg, BG Trauma Center Ludwigshafen, Ludwig-Guttmann Str. 13, 67071, Ludwigshafen, Germany
| | - Benjamin Thomas
- Department of Hand, Plastic and Reconstructive Surgery, University of Heidelberg, BG Trauma Center Ludwigshafen, Ludwig-Guttmann Str. 13, 67071, Ludwigshafen, Germany
| | - Christoph Köpple
- Department of Hand, Plastic and Reconstructive Surgery, University of Heidelberg, BG Trauma Center Ludwigshafen, Ludwig-Guttmann Str. 13, 67071, Ludwigshafen, Germany
| | - Nicole Ludwig
- Institute of Human Genetics, Saarland University, Homburg-Saar, Germany
| | - Matthias Schulte
- Department of Hand, Plastic and Reconstructive Surgery, University of Heidelberg, BG Trauma Center Ludwigshafen, Ludwig-Guttmann Str. 13, 67071, Ludwigshafen, Germany
| | - Marc A Brockmann
- Department of Neuroradiology, University Medical Center Mainz, Mainz, Germany
| | - Yoo-Jin Kim
- Institute of Pathology, Kaiserslautern, Germany
| | - Justin M Sacks
- Department of Plastic and Reconstructive Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Ulrich Kneser
- Department of Hand, Plastic and Reconstructive Surgery, University of Heidelberg, BG Trauma Center Ludwigshafen, Ludwig-Guttmann Str. 13, 67071, Ludwigshafen, Germany
| | - Andreas Keller
- Institute of Clinical Bioinformatics, Saarland University, Saarbruecken, Germany
| | - Eckart Meese
- Institute of Human Genetics, Saarland University, Homburg-Saar, Germany
| | - Volker J Schmidt
- Department of Hand, Plastic and Reconstructive Surgery, University of Heidelberg, BG Trauma Center Ludwigshafen, Ludwig-Guttmann Str. 13, 67071, Ludwigshafen, Germany.
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11
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May O, Merle NS, Grunenwald A, Gnemmi V, Leon J, Payet C, Robe-Rybkine T, Paule R, Delguste F, Satchell SC, Mathieson PW, Hazzan M, Boulanger E, Dimitrov JD, Fremeaux-Bacchi V, Frimat M, Roumenina LT. Heme Drives Susceptibility of Glomerular Endothelium to Complement Overactivation Due to Inefficient Upregulation of Heme Oxygenase-1. Front Immunol 2018; 9:3008. [PMID: 30619356 PMCID: PMC6306430 DOI: 10.3389/fimmu.2018.03008] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 12/05/2018] [Indexed: 11/27/2022] Open
Abstract
Atypical hemolytic uremic syndrome (aHUS) is a severe disease characterized by microvascular endothelial cell (EC) lesions leading to thrombi formation, mechanical hemolysis and organ failure, predominantly renal. Complement system overactivation is a hallmark of aHUS. To investigate this selective susceptibility of the microvascular renal endothelium to complement attack and thrombotic microangiopathic lesions, we compared complement and cyto-protection markers on EC, from different vascular beds, in in vitro and in vivo models as well as in patients. No difference was observed for complement deposits or expression of complement and coagulation regulators between macrovascular and microvascular EC, either at resting state or after inflammatory challenge. After prolonged exposure to hemolysis-derived heme, higher C3 deposits were found on glomerular EC, in vitro and in vivo, compared with other EC in culture and in mice organs (liver, skin, brain, lungs and heart). This could be explained by a reduced complement regulation capacity due to weaker binding of Factor H and inefficient upregulation of thrombomodulin (TM). Microvascular EC also failed to upregulate the cytoprotective heme-degrading enzyme heme-oxygenase 1 (HO-1), normally induced by hemolysis products. Only HUVEC (Human Umbilical Vein EC) developed adaptation to heme, which was lost after inhibition of HO-1 activity. Interestingly, the expression of KLF2 and KLF4—known transcription factors of TM, also described as possible transcription modulators of HO-1- was weaker in micro than macrovascular EC under hemolytic conditions. Our results show that the microvascular EC, and especially glomerular EC, fail to adapt to the stress imposed by hemolysis and acquire a pro-coagulant and complement-activating phenotype. Together, these findings indicate that the vulnerability of glomerular EC to hemolysis is a key factor in aHUS, amplifying complement overactivation and thrombotic microangiopathic lesions.
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Affiliation(s)
- Olivia May
- INSERM, UMR_S 1138, Centre de Recherche des Cordeliers, Paris, France.,INSERM, UMR 995, Lille, France.,University of Lille, CHU Lille, Nephrology Department, Lille, France
| | - Nicolas S Merle
- INSERM, UMR_S 1138, Centre de Recherche des Cordeliers, Paris, France.,Sorbonne Universités, UPMC Univ Paris 06, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Anne Grunenwald
- INSERM, UMR_S 1138, Centre de Recherche des Cordeliers, Paris, France.,University of Lille, CHU Lille, Nephrology Department, Lille, France.,University of Lille, INSERM, CHU Lille, Department of Pathology, UMR-S 1172 - Jean-Pierre Aubert Research Center, Lille, France
| | - Viviane Gnemmi
- University of Lille, INSERM, CHU Lille, Department of Pathology, UMR-S 1172 - Jean-Pierre Aubert Research Center, Lille, France
| | - Juliette Leon
- INSERM, UMR_S 1138, Centre de Recherche des Cordeliers, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Cloé Payet
- INSERM, UMR_S 1138, Centre de Recherche des Cordeliers, Paris, France.,Sorbonne Universités, UPMC Univ Paris 06, Paris, France
| | - Tania Robe-Rybkine
- INSERM, UMR_S 1138, Centre de Recherche des Cordeliers, Paris, France.,Sorbonne Universités, UPMC Univ Paris 06, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Romain Paule
- INSERM, UMR_S 1138, Centre de Recherche des Cordeliers, Paris, France
| | | | | | | | - Marc Hazzan
- INSERM, UMR 995, Lille, France.,University of Lille, CHU Lille, Nephrology Department, Lille, France
| | | | - Jordan D Dimitrov
- INSERM, UMR_S 1138, Centre de Recherche des Cordeliers, Paris, France.,Sorbonne Universités, UPMC Univ Paris 06, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Veronique Fremeaux-Bacchi
- INSERM, UMR_S 1138, Centre de Recherche des Cordeliers, Paris, France.,Assistance Publique - Hôpitaux de Paris, Service d'Immunologie Biologique, Hôpital Européen Georges Pompidou, Paris, France
| | - Marie Frimat
- INSERM, UMR 995, Lille, France.,University of Lille, CHU Lille, Nephrology Department, Lille, France
| | - Lubka T Roumenina
- INSERM, UMR_S 1138, Centre de Recherche des Cordeliers, Paris, France.,Sorbonne Universités, UPMC Univ Paris 06, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, Paris, France
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12
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Mizuno T, Nakamura M, Satoh N, Tsukada H, Matsumoto A, Hamasaki Y, Kume H, Nangaku M. Patency with antiplatelet treatment after vascular access intervention therapy: a retrospective observational study. RENAL REPLACEMENT THERAPY 2018. [DOI: 10.1186/s41100-018-0184-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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13
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Nath KA, O'Brien DR, Croatt AJ, Grande JP, Ackerman AW, Nath MC, Yamada S, Terzic A, Tchkonia T, Kirkland JL, Katusic ZS. The murine dialysis fistula model exhibits a senescence phenotype: pathobiological mechanisms and therapeutic potential. Am J Physiol Renal Physiol 2018; 315:F1493-F1499. [PMID: 30019935 DOI: 10.1152/ajprenal.00308.2018] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
There is no therapy that promotes maturation and functionality of a dialysis arteriovenous fistula (AVF). The search for such therapies largely relies on evaluation of vascular responses and putative therapies in experimental AVFs. We studied an AVF in mice with chronic kidney disease (CKD). We demonstrate numerous stressors in the vein of the AVF-CKD group, including pathological shear, mitogenic, inflammatory, and hypoxia-reoxygenation stress. Because stress promotes premature senescence, we examined whether senescence is induced in the vein of the AVF-CKD model. We demonstrate a senescence phenotype in the AVF-CKD model, as indicated by increased expression of p16Ink4a, p21Cip1, and p53 and expected changes for certain senescence-associated microRNAs. RNA-sequencing analysis demonstrated differential expression of ~10,000 genes, including upregulation of proinflammatory and proliferative genes, in the vein of the AVF-CKD group. The vein in the AVF-CKD group exhibited telomere erosion and increased senescence-associated β-galactosidase activity and staining. Senescence was induced in the artery of the AVF-CKD group and in the vein of the AVF without CKD. Finally, given the rapidly rising clinical interest in senolytics, we provide proof of concept of senolytics as a therapeutic approach by demonstrating that senolytics decrease p16Ink4a expression in the AVF-CKD model. This study introduces a novel concept underlying the basis for maturational and functional failure in human dialysis AVFs and identifies a new target for senolytic therapy.
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Affiliation(s)
- Karl A Nath
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic , Rochester, Minnesota
| | - Daniel R O'Brien
- Division of Biomedical Statistics and Informatics, Department of Health Science Research, Mayo Clinic , Rochester, Minnesota
| | - Anthony J Croatt
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic , Rochester, Minnesota
| | - Joseph P Grande
- Department of Laboratory Medicine and Pathology, Mayo Clinic , Rochester, Minnesota
| | - Allan W Ackerman
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic , Rochester, Minnesota
| | - Meryl C Nath
- Department of Laboratory Medicine and Pathology, Mayo Clinic , Rochester, Minnesota
| | - Satsuki Yamada
- Department of Cardiovascular Medicine, Mayo Clinic , Rochester, Minnesota.,Center for Regenerative Medicine, Mayo Clinic , Rochester, Minnesota
| | - Andre Terzic
- Department of Cardiovascular Medicine, Mayo Clinic , Rochester, Minnesota.,Center for Regenerative Medicine, Mayo Clinic , Rochester, Minnesota
| | - Tamara Tchkonia
- Robert and Arlene Kogod Center on Aging, Mayo Clinic , Rochester, Minnesota
| | - James L Kirkland
- Robert and Arlene Kogod Center on Aging, Mayo Clinic , Rochester, Minnesota
| | - Zvonimir S Katusic
- Departments of Anesthesiology and Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, Minnesota
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14
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El Assar M, Angulo J, Carnicero JA, Walter S, García-García FJ, López-Hernández E, Sánchez-Puelles JM, Rodríguez-Mañas L. Frailty Is Associated With Lower Expression of Genes Involved in Cellular Response to Stress: Results From the Toledo Study for Healthy Aging. J Am Med Dir Assoc 2017. [PMID: 28647579 DOI: 10.1016/j.jamda.2017.04.019] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND Specific mechanisms underlying frailty syndrome are not well known. Frailty can be viewed as a loss of functional reserve resulting in increased vulnerability to stressors. We hypothesize that pathways regulating cellular response to stress are potential players in the development of frailty. The aim of this study was to evaluate the association of the expression of certain genes related to cellular response to stress with the presence of frailty in older patients. METHODS A sample of 350 individuals aged 65 years or older (22% frail) was selected from the Toledo Study of Healthy Aging. RNA was extracted from blood and retro-transcribed into complementary DNA. TaqMan Low density Arrays were used for the measurement of expression of genes implicated in cellular response to oxidative stress, genes implicated in inflammation, genes implicated in vascular physiology, and genes related to hypoxia. For data analysis, a logistic regression model was used to assess the relationship of gene expression and frailty. RESULTS Among the analyzed genes, lower expression of genes related to cellular response to hypoxia (hypoxia inducible factor-1α) or to cellular response to oxidative stress (nuclear factor erythroid 2-related factor 2 and its target genes heme oxygenase-2, thioredoxin reductase-1, and superoxide dismutase-2), but not to those related to inflammation or vascular physiology, were significantly associated with the presence of frailty after adjustment for age and sex. These associations remained significant after adjustment by type 2 diabetes and Charlson index of comorbidities. Lower expressions of genes involved in cellular response to stress were also associated with increased risk of functional impairment. CONCLUSIONS Reduced expression of several genes implicated in cellular response to oxidative stress or hypoxia is significantly associated with the presence of frailty. These results help to fill the gap of knowledge of this evolving field and provide targets for intervention to promote health and independence in the elderly.
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Affiliation(s)
- Mariam El Assar
- Instituto de Investigación Sanitaria del Hospital Universitario de Getafe, Getafe, Spain
| | - Javier Angulo
- Servicio de Histología-Investigación, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Hospital Ramón y Cajal, Madrid, Spain
| | | | - Stefan Walter
- Instituto de Investigación Sanitaria del Hospital Universitario de Getafe, Getafe, Spain; Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, California
| | | | - Eva López-Hernández
- Departamento de Medicina Celular y Molecular, Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - José-María Sánchez-Puelles
- Departamento de Medicina Celular y Molecular, Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Leocadio Rodríguez-Mañas
- Instituto de Investigación Sanitaria del Hospital Universitario de Getafe, Getafe, Spain; Servicio de Geriatría, Hospital Universitario de Getafe, Getafe, Spain.
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15
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Lee T, Misra S. New Insights into Dialysis Vascular Access: Molecular Targets in Arteriovenous Fistula and Arteriovenous Graft Failure and Their Potential to Improve Vascular Access Outcomes. Clin J Am Soc Nephrol 2016; 11:1504-1512. [PMID: 27401527 PMCID: PMC4974876 DOI: 10.2215/cjn.02030216] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Vascular access dysfunction remains a major cause of morbidity and mortality in hemodialysis patients. At present there are few effective therapies for this clinical problem. The poor understanding of the pathobiology that leads to arteriovenous fistula (AVF) and graft (AVG) dysfunction remains a critical barrier to development of novel and effective therapies. However, in recent years we have made substantial progress in our understanding of the mechanisms of vascular access dysfunction. This article presents recent advances and new insights into the pathobiology of AVF and AVG dysfunction and highlights potential therapeutic targets to improve vascular access outcomes.
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Affiliation(s)
- Timmy Lee
- Department of Medicine and Division of Nephrology, University of Alabama at Birmingham, Birmingham, Alabama
- Veterans Affairs Medical Center, Birmingham, Alabama; and
| | - Sanjay Misra
- Vascular and Interventional Radiology Translational Laboratory, Department of Radiology, Mayo Clinic, Rochester, Minnesota
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16
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Abstract
SIGNIFICANCE Acute kidney injury (AKI) and chronic kidney disease (CKD) represent a considerable burden in healthcare. The heme oxygenase (HO) system plays an important role in regulating oxidative stress and is protective in a variety of human and animal models of kidney disease. Preclinical studies of the HO system have led to the development of several clinical trials targeting the enzyme or its products. RECENT ADVANCES Connection of HO, ferritin, and other proteins involved in iron regulation has provided important insight into mechanisms of damage in AKI. Also, HO-1 expression is important in the pathogenesis of hypertension, diabetic kidney disease, and progression to end-stage renal disease. CRITICAL ISSUES Despite intriguing discoveries, no drugs targeting the HO system have been translated to the clinic. Meanwhile, treatments for AKI and CKD are urgently needed. Many factors have likely contributed to challenges in clinical translation, including variation in animal models, difficulties in obtaining human tissue, and complexity of the disease processes being studied. FUTURE DIRECTIONS The HO system represents a promising avenue of investigation that may lead to targeted therapeutics. Tissue-specific gene modulation, widening the scope of animal studies, and continued clinical research will provide valuable insight into the role HO plays in kidney homeostasis and disease. Antioxid. Redox Signal. 25, 165-183.
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Affiliation(s)
- Jeremie M Lever
- 1 Nephrology Research and Training Center, Division of Nephrology, Department of Medicine, The University of Alabama at Birmingham , Birmingham, Alabama
| | - Ravindra Boddu
- 1 Nephrology Research and Training Center, Division of Nephrology, Department of Medicine, The University of Alabama at Birmingham , Birmingham, Alabama
| | - James F George
- 2 Division of Cardiothoracic Surgery, Department of Surgery, The University of Alabama at Birmingham , Birmingham, Alabama
| | - Anupam Agarwal
- 1 Nephrology Research and Training Center, Division of Nephrology, Department of Medicine, The University of Alabama at Birmingham , Birmingham, Alabama.,3 Birmingham Veterans Administration Medical Center , Birmingham, Alabama
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17
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Kang L, Grande JP, Hillestad ML, Croatt AJ, Barry MA, Katusic ZS, Nath KA. A new model of an arteriovenous fistula in chronic kidney disease in the mouse: beneficial effects of upregulated heme oxygenase-1. Am J Physiol Renal Physiol 2015; 310:F466-76. [PMID: 26672617 DOI: 10.1152/ajprenal.00288.2015] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Accepted: 12/15/2015] [Indexed: 12/28/2022] Open
Abstract
The arteriovenous fistula (AVF) is the preferred hemodialysis vascular access, but it is complicated by high failure rates and attendant morbidity. This study provides the first description of a murine AVF model that recapitulates two salient features of hemodialysis AVFs, namely, anastomosis of end-vein to side-artery to create the AVF and the presence of chronic kidney disease (CKD). CKD reduced AVF blood flow, observed as early as 3 days after AVF creation, and increased neointimal hyperplasia, venous wall thickness, thrombus formation, and vasculopathic gene expression in the AVF. These adverse effects of CKD could not be ascribed to preexisting alterations in blood pressure or vascular reactivity in this CKD model. In addition to vasculopathic genes, CKD induced potentially vasoprotective genes in the AVF such as heme oxygenase-1 (HO-1) and HO-2. To determine whether prior HO-1 upregulation may protect in this model, we upregulated HO-1 by adeno-associated viral gene delivery, achieving marked venous induction of the HO-1 protein and HO activity. Such HO-1 upregulation improved AVF blood flow and decreased venous wall thickness in the AVF. Finally, we demonstrate that the administration of carbon monoxide, a product of HO, acutely increased AVF blood flow. This study thus demonstrates: 1) the feasibility of a clinically relevant murine AVF model created in the presence of CKD and involving an end-vein to side-artery anastomosis; 2) the exacerbatory effect of CKD on clinically relevant features of this model; and 3) the beneficial effects in this model conferred by HO-1 upregulation by adeno-associated viral gene delivery.
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Affiliation(s)
- Lu Kang
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota
| | - Joseph P Grande
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota
| | | | - Anthony J Croatt
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota
| | - Michael A Barry
- Division of Infectious Diseases, Mayo Clinic, Rochester, Minnesota; and
| | - Zvonimir S Katusic
- Departments of Anesthesiology and Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, Minnesota
| | - Karl A Nath
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota;
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18
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Abraham NG, Junge JM, Drummond GS. Translational Significance of Heme Oxygenase in Obesity and Metabolic Syndrome. Trends Pharmacol Sci 2015; 37:17-36. [PMID: 26515032 DOI: 10.1016/j.tips.2015.09.003] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 09/10/2015] [Accepted: 09/17/2015] [Indexed: 01/04/2023]
Abstract
The global epidemic of obesity continues unabated with sequelae of diabetes and metabolic syndrome. This review reflects the dramatic increase in research on the role of increased expression of heme oxygenase (HO)-1/HO-2, biliverdin reductase, and HO activity on vascular disease. The HO system engages with other systems to mitigate the deleterious effects of oxidative stress in obesity and cardiovascular disease (CVD). Recent reports indicate that HO-1/HO-2 protein expression and HO activity have several important roles in hemostasis and reactive oxygen species (ROS)-dependent perturbations associated with metabolic syndrome. HO-1 protects tissue during inflammatory stress in obesity through the degradation of pro-oxidant heme and the production of carbon monoxide (CO) and bilirubin, both of which have anti-inflammatory and anti-apoptotic properties. By contrast, repression of HO-1 is associated with increases of cellular heme and inflammatory conditions including hypertension, stroke, and atherosclerosis. HO-1 is a major focus in the development of potential therapeutic strategies to reverse the clinical complications of obesity and metabolic syndrome.
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Affiliation(s)
- Nader G Abraham
- Departments of Medicine and Pharmacology, New York Medical College, School of Medicine, Valhalla, NY 10595, USA; Marshall University, Joan C. Edwards School of Medicine, Huntington, WV 25701, USA.
| | - Joshua M Junge
- Departments of Medicine and Pharmacology, New York Medical College, School of Medicine, Valhalla, NY 10595, USA
| | - George S Drummond
- Departments of Medicine and Pharmacology, New York Medical College, School of Medicine, Valhalla, NY 10595, USA
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