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Antonucci S, Caron G, Dikwella N, Krishnamurty SS, Harster A, Zarrin H, Tahanis A, Heuvel FO, Danner SM, Ludolph A, Grycz K, Baczyk M, Zytnicki D, Roselli F. Non-canonical adrenergic neuromodulation of motoneuron intrinsic excitability through β-receptors in wild-type and ALS mice. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.25.586570. [PMID: 38585891 PMCID: PMC10996613 DOI: 10.1101/2024.03.25.586570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Altered neuronal excitability and synaptic inputs to motoneurons are part of the pathophysiology of Amyotrophic Lateral Sclerosis. The cAMP/PKA pathway regulates both of them but therapeutic interventions at this level are limited by the lack of knowledge about suitable pharmacological entry points. Here we used transcriptomics on microdissected and in situ motoneurons to reveal the modulation of PKA-coupled receptorome in SOD1(G93A) ALS mice, vs WT, demonstrating the dysregulation of multiple PKA-coupled GPCRs, in particular on vulnerable MNs, and the relative sparing of β-adrenergic receptors. In vivo MN electrophysiology showed that β2/β3 agonists acutely increase excitability, in particular the input/output relationship, demonstrating a non-canonical adrenergic neuromodulation mediated by β2/β3 receptors both in WT and SOD1 mice. The excitability increase corresponds to the upregulation of immediate-early gene expression and dysregulation of ion channels transcriptome. However the β2/β3 neuromodulation is submitted to a strong homeostasis, since a ten days delivery of β2/β3 agonists results in an abolition of the excitability increase. The homeostatic response is largely caused by a substantial downregulation of PKA-coupled GPCRs in MNs from WT and SOD1 mice. Thus, β-adrenergic receptors are physiologically involved in the regulation of MN excitability and transcriptomics, but, intriguingly, a strong homeostatic response is triggered upon chronic pharmacologic intervention.
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Affiliation(s)
| | - Guillaume Caron
- Université Paris Cité, CNRS, Saints-Pères Paris Institute for the Neurosciences, Paris, France
| | | | | | - Anthony Harster
- Université Paris Cité, CNRS, Saints-Pères Paris Institute for the Neurosciences, Paris, France
| | | | | | | | - Simon M. Danner
- Department of Neurobiology and Anatomy, College of Medicine, Drexel University, Philadelphia, United States
| | - Albert Ludolph
- Dept. of Neurology, Ulm University, Ulm, DE
- German Center for Neurodegenerative Diseases (DZNE)-Ulm, DE
| | - Kamil Grycz
- Dept. of Neurobiology, Poznan University of Physical Education, Poland
| | - Marcin Baczyk
- Dept. of Neurobiology, Poznan University of Physical Education, Poland
| | - Daniel Zytnicki
- Université Paris Cité, CNRS, Saints-Pères Paris Institute for the Neurosciences, Paris, France
| | - Francesco Roselli
- Dept. of Neurology, Ulm University, Ulm, DE
- German Center for Neurodegenerative Diseases (DZNE)-Ulm, DE
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Krajnak K, Kan H, Thompson JA, McKinney W, Waugh S, South T, Burns D, Lebouf R, Cumpston J, Boots T, Fedan JS. Biological effects of diesel exhaust inhalation. III cardiovascular function. Inhal Toxicol 2024; 36:189-204. [PMID: 38466202 PMCID: PMC11099779 DOI: 10.1080/08958378.2024.2327364] [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: 11/17/2023] [Accepted: 02/29/2024] [Indexed: 03/12/2024]
Abstract
OBJECTIVE Inhalation of diesel exhaust (DE) has been shown to be an occupational hazard in the transportation, mining, and gas and oil industries. DE also contributes to air pollution, and therefore, is a health hazard to the general public. Because of its effects on human health, changes have been made to diesel engines to reduce both the amounts of particulate matter and volatile fumes they generate. The goal of the current study was to examine the effects of inhalation of diesel exhaust. MATERIALS AND METHODS The study presented here specifically examines the effects of exposure to 0.2 and 1.0 mg/m3 DE or filtered air (6h/d for 4 d) on measures of peripheral and cardio-vascular function, and biomarkers of heart and kidney dysfunction in male rats. A Tier 2 engine used in oil and gas fracking operations was used to generate the diesel exhaust. RESULTS Exposure to 0.2 mg/m3 DE resulted in an increase in blood pressure 1d following the last exposure, and increases in dobutamine-induced cardiac output and stroke volume 1 and 27d after exposure. Changes in peripheral vascular responses to norepinephrine and acetylcholine were minimal as were changes in transcript expression in the heart and kidney. Exposure to 1.0 mg/m3 DE did not result in major changes in blood pressure, measures of cardiac function, peripheral vascular function or transcript expression. DISCUSSION AND CONCLUSIONS Based on the results of this study, we suggest that exposure to DE generated by a Tier 2 compliant diesel engine generates acute effects on biomarkers indicative of cardiovascular dysfunction. Recovery occurs quickly with most measures of vascular/cardiovascular function returning to baseline levels by 7d following exposure.
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Affiliation(s)
- Kristine Krajnak
- Physical Effects Research Branch, National Institute for Occupational Safety and Health, Morgantown, WV, USA
| | - Hong Kan
- Pathology and Physiology Research Branch, National Institute for Occupational Safety and Health, Morgantown, WV, USA
| | - Janet A. Thompson
- Pathology and Physiology Research Branch, National Institute for Occupational Safety and Health, Morgantown, WV, USA
| | - Walter McKinney
- Physical Effects Research Branch, National Institute for Occupational Safety and Health, Morgantown, WV, USA
| | - Stacey Waugh
- Physical Effects Research Branch, National Institute for Occupational Safety and Health, Morgantown, WV, USA
| | - Tim South
- Physical Effects Research Branch, National Institute for Occupational Safety and Health, Morgantown, WV, USA
| | - Dru Burns
- Respiratory Health Division, National Institute for Occupational Safety and Health, Morgantown, WV, USA
| | - Ryan Lebouf
- Respiratory Health Division, National Institute for Occupational Safety and Health, Morgantown, WV, USA
| | - Jared Cumpston
- Animal Facilities, National Institute for Occupational Safety and Health, Morgantown, WV, USA
| | - Theresa Boots
- Risk Evaluation Branch, National Institute for Occupational Safety and Health, Morgantown, WV, USA
| | - Jeffrey S. Fedan
- Pathology and Physiology Research Branch, National Institute for Occupational Safety and Health, Morgantown, WV, USA
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3
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Evans CJF, Glastras SJ, Tang O, Figtree GA. Therapeutic Potential for Beta-3 Adrenoreceptor Agonists in Peripheral Arterial Disease and Diabetic Foot Ulcers. Biomedicines 2023; 11:3187. [PMID: 38137408 PMCID: PMC10740412 DOI: 10.3390/biomedicines11123187] [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: 11/08/2023] [Revised: 11/27/2023] [Accepted: 11/28/2023] [Indexed: 12/24/2023] Open
Abstract
Annually, peripheral arterial disease is estimated to cost over USD 21 billion and diabetic foot disease an estimated at USD 9-13 billion. Mirabegron is a TGA-approved beta-3 adrenoreceptor agonist, shown to be safe and effective in the treatment of overactive bladder syndrome by stimulating bladder smooth muscle relaxation. In this review, we discuss the potential use of beta-3 adrenoreceptor agonists as therapeutic agents repurposed for peripheral arterial disease and diabetic foot ulcers. The development of both conditions is underpinned by the upregulation of oxidative stress pathways and consequential inflammation and hypoxia. In oxidative stress, there is an imbalance of reactive oxygen species and nitric oxide. Endothelial nitric oxide synthase becomes uncoupled in disease states, producing superoxide and worsening oxidative stress. Agonist stimulation of the beta-3 adrenoreceptor recouples and activates endothelial nitric oxide synthase, increasing the production of nitric oxide. This reduces circulating reactive oxygen species, thus decreasing redox modification and dysregulation of cellular proteins, causing downstream smooth muscle relaxation, improved endothelial function and increased angiogenesis. These mechanisms lead to endothelial repair in peripheral arterial disease and an enhanced perfusion in hypoxic tissue, which will likely improve the healing of chronic ulcers.
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Affiliation(s)
- Cameron J. F. Evans
- Kolling Institute, University of Sydney, Sydney, NSW 2006, Australia; (S.J.G.); (O.T.)
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2006, Australia
| | - Sarah J. Glastras
- Kolling Institute, University of Sydney, Sydney, NSW 2006, Australia; (S.J.G.); (O.T.)
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2006, Australia
- Department of Diabetes, Endocrinology & Metabolism, Royal North Shore Hospital, Northern Sydney Local Health District, Sydney, NSW 2065, Australia
| | - Owen Tang
- Kolling Institute, University of Sydney, Sydney, NSW 2006, Australia; (S.J.G.); (O.T.)
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2006, Australia
| | - Gemma A. Figtree
- Kolling Institute, University of Sydney, Sydney, NSW 2006, Australia; (S.J.G.); (O.T.)
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2006, Australia
- Department of Cardiology, Royal North Shore Hospital, Northern Sydney Local Health District, Sydney, NSW 2065, Australia
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4
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Investigation of the Antiremodeling Effects of Losartan, Mirabegron and Their Combination on the Development of Doxorubicin-Induced Chronic Cardiotoxicity in a Rat Model. Int J Mol Sci 2022; 23:ijms23042201. [PMID: 35216317 PMCID: PMC8877618 DOI: 10.3390/ijms23042201] [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: 01/26/2022] [Revised: 02/11/2022] [Accepted: 02/12/2022] [Indexed: 12/16/2022] Open
Abstract
Despite the effectiveness of doxorubicin (DOXO) as a chemotherapeutic agent, dose-dependent development of chronic cardiotoxicity limits its application. The angiotensin-II receptor blocker losartan is commonly used to treat cardiac remodeling of various etiologies. The beta-3 adrenergic receptor agonist mirabegron was reported to improve chronic heart failure. Here we investigated the effects of losartan, mirabegron and their combination on the development of DOXO-induced chronic cardiotoxicity. Male Wistar rats were divided into five groups: (i) control; (ii) DOXO-only; (iii) losartan-treated DOXO; (iv) mirabegron-treated DOXO; (v) losartan plus mirabegron-treated DOXO groups. The treatments started 5 weeks after DOXO administration. At week 8, echocardiography was performed. At week 9, left ventricles were prepared for histology, qRT-PCR, and Western blot measurements. Losartan improved diastolic but not systolic dysfunction and ameliorated SERCA2a repression in our DOXO-induced cardiotoxicity model. The DOXO-induced overexpression of Il1 and Il6 was markedly decreased by losartan and mirabegron. Mirabegron and the combination treatment improved systolic and diastolic dysfunction and significantly decreased overexpression of Smad2 and Smad3 in our DOXO-induced cardiotoxicity model. Only mirabegron reduced DOXO-induced cardiac fibrosis significantly. Mirabegron and its combination with losartan seem to be promising therapeutic tools against DOXO-induced chronic cardiotoxicity.
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Kovács ZZA, Szűcs G, Freiwan M, Kovács MG, Márványkövi FM, Dinh H, Siska A, Farkas K, Kovács F, Kriston A, Horváth P, Kővári B, Cserni BG, Cserni G, Földesi I, Csont T, Sárközy M. Comparison of the antiremodeling effects of losartan and mirabegron in a rat model of uremic cardiomyopathy. Sci Rep 2021; 11:17495. [PMID: 34471171 PMCID: PMC8410807 DOI: 10.1038/s41598-021-96815-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Accepted: 08/17/2021] [Indexed: 02/07/2023] Open
Abstract
Uremic cardiomyopathy is characterized by diastolic dysfunction (DD), left ventricular hypertrophy (LVH), and fibrosis. Angiotensin-II plays a major role in the development of uremic cardiomyopathy via nitro-oxidative and inflammatory mechanisms. In heart failure, the beta-3 adrenergic receptor (β3-AR) is up-regulated and coupled to endothelial nitric oxide synthase (eNOS)-mediated pathways, exerting antiremodeling effects. We aimed to compare the antiremodeling effects of the angiotensin-II receptor blocker losartan and the β3-AR agonist mirabegron in uremic cardiomyopathy. Chronic kidney disease (CKD) was induced by 5/6th nephrectomy in male Wistar rats. Five weeks later, rats were randomized into four groups: (1) sham-operated, (2) CKD, (3) losartan-treated (10 mg/kg/day) CKD, and (4) mirabegron-treated (10 mg/kg/day) CKD groups. At week 13, echocardiographic, histologic, laboratory, qRT-PCR, and Western blot measurements proved the development of uremic cardiomyopathy with DD, LVH, fibrosis, inflammation, and reduced eNOS levels, which were significantly ameliorated by losartan. However, mirabegron showed a tendency to decrease DD and fibrosis; but eNOS expression remained reduced. In uremic cardiomyopathy, β3-AR, sarcoplasmic reticulum ATPase (SERCA), and phospholamban levels did not change irrespective of treatments. Mirabegron reduced the angiotensin-II receptor 1 expression in uremic cardiomyopathy that might explain its mild antiremodeling effects despite the unchanged expression of the β3-AR.
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Affiliation(s)
- Zsuzsanna Z A Kovács
- MEDICS Research Group, Department of Biochemistry, Interdisciplinary Center of Excellence, Albert Szent-Györgyi Medical School, University of Szeged, Dóm tér 9, Szeged, 6720, Hungary
| | - Gergő Szűcs
- MEDICS Research Group, Department of Biochemistry, Interdisciplinary Center of Excellence, Albert Szent-Györgyi Medical School, University of Szeged, Dóm tér 9, Szeged, 6720, Hungary
| | - Marah Freiwan
- MEDICS Research Group, Department of Biochemistry, Interdisciplinary Center of Excellence, Albert Szent-Györgyi Medical School, University of Szeged, Dóm tér 9, Szeged, 6720, Hungary
| | - Mónika G Kovács
- MEDICS Research Group, Department of Biochemistry, Interdisciplinary Center of Excellence, Albert Szent-Györgyi Medical School, University of Szeged, Dóm tér 9, Szeged, 6720, Hungary
| | - Fanni M Márványkövi
- MEDICS Research Group, Department of Biochemistry, Interdisciplinary Center of Excellence, Albert Szent-Györgyi Medical School, University of Szeged, Dóm tér 9, Szeged, 6720, Hungary
| | - Hoa Dinh
- MEDICS Research Group, Department of Biochemistry, Interdisciplinary Center of Excellence, Albert Szent-Györgyi Medical School, University of Szeged, Dóm tér 9, Szeged, 6720, Hungary
| | - Andrea Siska
- Department of Laboratory Medicine, Albert Szent-Györgyi Medical School, University of Szeged, Semmelweis utca 6, Szeged, 6720, Hungary
| | - Katalin Farkas
- Department of Laboratory Medicine, Albert Szent-Györgyi Medical School, University of Szeged, Semmelweis utca 6, Szeged, 6720, Hungary
| | - Ferenc Kovács
- Synthetic and Systems Biology Unit, Biological Research Centre, Eötvös Loránd Research Network, Temesvári krt. 62, Szeged, 6726, Hungary
- Single-Cell Technologies Ltd, Temesvári krt. 62, Szeged, 6726, Hungary
| | - András Kriston
- Synthetic and Systems Biology Unit, Biological Research Centre, Eötvös Loránd Research Network, Temesvári krt. 62, Szeged, 6726, Hungary
- Single-Cell Technologies Ltd, Temesvári krt. 62, Szeged, 6726, Hungary
| | - Péter Horváth
- Synthetic and Systems Biology Unit, Biological Research Centre, Eötvös Loránd Research Network, Temesvári krt. 62, Szeged, 6726, Hungary
- Single-Cell Technologies Ltd, Temesvári krt. 62, Szeged, 6726, Hungary
- Institute for Molecular Medicine Finland (FIMM), University of Helsinki, 00014, Helsinki, Finland
| | - Bence Kővári
- Department of Pathology, Albert Szent-Györgyi Medical School, University of Szeged, Állomás utca 1, Szeged, 6720, Hungary
| | - Bálint Gábor Cserni
- Department of Pathology, Albert Szent-Györgyi Medical School, University of Szeged, Állomás utca 1, Szeged, 6720, Hungary
| | - Gábor Cserni
- Department of Pathology, Albert Szent-Györgyi Medical School, University of Szeged, Állomás utca 1, Szeged, 6720, Hungary
| | - Imre Földesi
- Department of Laboratory Medicine, Albert Szent-Györgyi Medical School, University of Szeged, Semmelweis utca 6, Szeged, 6720, Hungary
| | - Tamás Csont
- MEDICS Research Group, Department of Biochemistry, Interdisciplinary Center of Excellence, Albert Szent-Györgyi Medical School, University of Szeged, Dóm tér 9, Szeged, 6720, Hungary.
| | - Márta Sárközy
- MEDICS Research Group, Department of Biochemistry, Interdisciplinary Center of Excellence, Albert Szent-Györgyi Medical School, University of Szeged, Dóm tér 9, Szeged, 6720, Hungary.
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Saunders SL, Hutchinson DS, Britton FC, Liu L, Markus I, Sandow SL, Murphy TV. Effect of β 1 /β 2 -adrenoceptor blockade on β 3 -adrenoceptor activity in the rat cremaster muscle artery. Br J Pharmacol 2021; 178:1789-1804. [PMID: 33506492 DOI: 10.1111/bph.15398] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 01/19/2021] [Accepted: 01/19/2021] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND AND PURPOSE The physiological role of vascular β3 -adrenoceptors is not fully understood. Recent evidence suggests cardiac β3 -adrenoceptors are functionally effective after down-regulation of β1 /β2 -adrenoceptors. The functional interaction between the β3 -adrenoceptor and other β-adrenoceptor subtypes in rat striated muscle arteries was investigated. EXPERIMENTAL APPROACH Studies were performed in cremaster muscle arteries isolated from male Sprague-Dawley rats. β-adrenoceptor expression was assessed through RT-PCR and immunofluorescence. Functional effects of β3 -adrenoceptor agonists and antagonists and other β-adrenoceptor ligands were measured using pressure myography. KEY RESULTS All three β-adrenoceptor subtypes were present in the endothelium of the cremaster muscle artery. The β3 -adrenoceptor agonists mirabegron and CL 316,243 had no effect on the diameter of pressurized (70 mmHg) cremaster muscle arterioles with myogenic tone, while the β3 -adrenoceptor agonist SR 58611A and the nonselective β-adrenoceptor agonist isoprenaline caused concentration-dependent dilation. In the presence of β1/2 -adrenoceptor antagonists nadolol (10 μM), atenolol (1 μM) and ICI 118,551 (0.1 μM) both mirabegron and CL 316,243 were effective in causing vasodilation and the potency of SR 58611A was enhanced, while responses to isoprenaline were inhibited. The β3 -adrenoceptor antagonist L 748,337 (1 μM) inhibited vasodilation caused by β3 -adrenoceptor agonists (in the presence of β1/2 -adrenoceptor blockade), but L 748,337 had no effect on isoprenaline-induced vasodilation. CONCLUSION AND IMPLICATIONS All three β-adrenoceptor subtypes were present in the endothelium of the rat cremaster muscle artery, but β3 -adrenoceptor mediated vasodilation was only evident after blockade of β1/2 -adrenoceptors. This suggests constitutive β1/2 -adrenoceptor activity inhibits β3 -adrenoceptor function in the endothelium of skeletal muscle resistance arteries.
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Affiliation(s)
- Samantha L Saunders
- Physiology, School of Medical Sciences, University of New South Wales, Sydney, New South Wales, Australia
| | - Dana S Hutchinson
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria, Australia
| | - Fiona C Britton
- Department of Biomedical Sciences, School of Dental Medicine, University of Nevada, Las Vegas, Las Vegas, Nevada, USA
| | - Lu Liu
- Pharmacology, School of Medical Sciences, University of New South Wales, Sydney, New South Wales, Australia
| | - Irit Markus
- Pharmacology, School of Medical Sciences, University of New South Wales, Sydney, New South Wales, Australia
| | - Shaun L Sandow
- Physiology, School of Medical Sciences, University of New South Wales, Sydney, New South Wales, Australia.,Biomedical Science, School of Health and Sports Science, University of the Sunshine Coast, Maroochydore, Queensland, Australia
| | - Timothy V Murphy
- Physiology, School of Medical Sciences, University of New South Wales, Sydney, New South Wales, Australia
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Infante T, Costa D, Napoli C. Novel Insights Regarding Nitric Oxide and Cardiovascular Diseases. Angiology 2021; 72:411-425. [PMID: 33478246 DOI: 10.1177/0003319720979243] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Nitric oxide (NO) is a powerful mediator with biological activities such as vasodilation and prevention of vascular smooth muscle cell proliferation as well as functional regulation of cardiac cells. Thus, impaired production or reduced bioavailability of NO predisposes to the onset of different cardiovascular (CV) diseases. Alterations in the redox balance associated with excitation-contraction coupling have been identified in heart failure (HF), thus contributing to contractile abnormalities and arrhythmias. For its ability to influence cell proliferation and angiogenesis, NO may be considered a therapeutic option for the management of several CV diseases. Several clinical studies and trials investigated therapeutic NO strategies for systemic hypertension, atherosclerosis, and/or prevention of in stent restenosis, coronary heart disease (CHD), pulmonary arterial hypertension (PAH), and HF, although with mixed results in long-term treatment and effective dose administered in selected groups of patients. Tadalafil, sildenafil, and cinaguat were evaluated for the treatment of PAH, whereas vericiguat was investigated in the treatment of HF patients with reduced ejection fraction. Furthermore, supplementation with hydrogen sulfide, tetrahydrobiopterin, and nitrite/nitrate has shown beneficial effects at the vascular level.
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Affiliation(s)
- Teresa Infante
- Department of Advanced Clinical and Surgical Sciences, 18994University of Campania "Luigi Vanvitelli," Naples, Italy
| | - Dario Costa
- U.O.C. Division of Clinical Immunology, Immunohematology, Transfusion Medicine and Transplant Immunology, Clinical Department of Internal Medicine and Specialistics, 18994University of Campania "L. Vanvitelli," Naples, Italy
| | - Claudio Napoli
- Department of Advanced Clinical and Surgical Sciences, 18994University of Campania "Luigi Vanvitelli," Naples, Italy.,IRCCS SDN, Naples, Italy
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Neurohormonal Modulation as a Therapeutic Target in Pulmonary Hypertension. Cells 2020; 9:cells9112521. [PMID: 33266371 PMCID: PMC7700466 DOI: 10.3390/cells9112521] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 11/17/2020] [Accepted: 11/18/2020] [Indexed: 12/14/2022] Open
Abstract
The autonomic nervous system (ANS) and renin-angiotensin-aldosterone system (RAAS) are involved in many cardiovascular disorders, including pulmonary hypertension (PH). The current review focuses on the role of the ANS and RAAS activation in PH and updated evidence of potential therapies targeting both systems in this condition, particularly in Groups 1 and 2. State of the art knowledge in preclinical and clinical use of pharmacologic drugs (beta-blockers, beta-three adrenoceptor agonists, or renin-angiotensin-aldosterone signaling drugs) and invasive procedures, such as pulmonary artery denervation, is provided.
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Krajnak K, Kan H, Russ KA, McKinney W, Waugh S, Zheng W, Kashon ML, Johnson C, Cumpston J, Fedan JS. Biological effects of inhaled hydraulic fracturing sand dust. VI. Cardiovascular effects. Toxicol Appl Pharmacol 2020; 406:115242. [PMID: 32931794 DOI: 10.1016/j.taap.2020.115242] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 08/27/2020] [Accepted: 09/09/2020] [Indexed: 12/24/2022]
Abstract
Hydraulic fracturing is used to access oil and natural gas reserves. This process involves the high-pressure injection of fluid to fracture shale. Fracking fluid contains approximately 95% water, chemicals and 4.5% fracking sand. Workers may be exposed to fracking sand dust (FSD) during the manipulation of the sand, and negative health consequences could occur if FSD is inhaled. In the absence of any information about its potential toxicity, a comprehensive rat animal model study (see Fedan et al., 2020) was designed to investigate the bioactivities of several FSDs in comparison to MIN-U-SIL® 5, a respirable α-quartz reference dust used in previous animal models of silicosis, in several organ systems. The goal of this study was to assess the effects of inhalation of one FSD, i.e., FSD 8, on factors and tissues that affect cardiovascular function. Male rats were exposed to 10 or 30 mg/m3 FSD (6 h/d for 4 d) by whole body inhalation, with measurements made 1, 7 or 27 d post-exposure. One day following exposure to 10 mg/m3 FSD the sensitivity to phenylephrine-induced vasoconstriction in tail arteries in vitro was increased. FSD exposure at both doses resulted in decreases in heart rate (HR), HR variability, and blood pressure in vivo. FSD induced changes in hydrogen peroxide concentrations and transcript levels for pro-inflammatory factors in heart tissues. In kidney, expression of proteins indicative of injury and remodeling was reduced after FSD exposure. When analyzed using regression analysis, changes in proteins involved in repair and remodeling were correlated. Thus, it appears that inhalation of FSD does have some prolonged effects on cardiovascular, and, possibly, renal function. The findings also provide information regarding potential mechanisms that may lead to these changes, and biomarkers that could be examined to monitor physiological changes that could be indicative of impending cardiovascular dysfunction.
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Affiliation(s)
- Kristine Krajnak
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV 26505, United States of America.
| | - Hong Kan
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV 26505, United States of America
| | - Kristen A Russ
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV 26505, United States of America
| | - Walter McKinney
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV 26505, United States of America
| | - Stacey Waugh
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV 26505, United States of America
| | - Wen Zheng
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV 26505, United States of America
| | - Michael L Kashon
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV 26505, United States of America
| | - Claud Johnson
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV 26505, United States of America
| | - Jared Cumpston
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV 26505, United States of America
| | - Jeffrey S Fedan
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV 26505, United States of America
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10
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Wintrich J, Kindermann I, Ukena C, Selejan S, Werner C, Maack C, Laufs U, Tschöpe C, Anker SD, Lam CSP, Voors AA, Böhm M. Therapeutic approaches in heart failure with preserved ejection fraction: past, present, and future. Clin Res Cardiol 2020; 109:1079-1098. [PMID: 32236720 PMCID: PMC7449942 DOI: 10.1007/s00392-020-01633-w] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 03/11/2020] [Indexed: 02/07/2023]
Abstract
In contrast to the wealth of proven therapies for heart failure with reduced ejection fraction (HFrEF), therapeutic efforts in the past have failed to improve outcomes in heart failure with preserved ejection fraction (HFpEF). Moreover, to this day, diagnosis of HFpEF remains controversial. However, there is growing appreciation that HFpEF represents a heterogeneous syndrome with various phenotypes and comorbidities which are hardly to differentiate solely by LVEF and might benefit from individually tailored approaches. These hypotheses are supported by the recently presented PARAGON-HF trial. Although treatment with LCZ696 did not result in a significantly lower rate of total hospitalizations for heart failure and death from cardiovascular causes among HFpEF patients, subanalyses suggest beneficial effects in female patients and those with an LVEF between 45 and 57%. In the future, prospective randomized trials should focus on dedicated, well-defined subgroups based on various information such as clinical characteristics, biomarker levels, and imaging modalities. These could clarify the role of LCZ696 in selected individuals. Furthermore, sodium-glucose cotransporter-2 inhibitors have just proven efficient in HFrEF patients and are currently also studied in large prospective clinical trials enrolling HFpEF patients. In addition, several novel disease-modifying drugs that pursue different strategies such as targeting cardiac inflammation and fibrosis have delivered preliminary optimistic results and are subject of further research. Moreover, innovative device therapies may enhance management of HFpEF, but need prospective adequately powered clinical trials to confirm safety and efficacy regarding clinical outcomes. This review highlights the past, present, and future therapeutic approaches in HFpEF.
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Affiliation(s)
- Jan Wintrich
- Klinik für Innere Medizin III-Kardiologie, Angiologie und Internistische Intensivmedizin, Universitätsklinikum des Saarlandes und Medizinische Fakultät der Universität des Saarlandes, Kirrberger Straße, 66421, Homburg/Saar, Germany.
| | - Ingrid Kindermann
- Klinik für Innere Medizin III-Kardiologie, Angiologie und Internistische Intensivmedizin, Universitätsklinikum des Saarlandes und Medizinische Fakultät der Universität des Saarlandes, Kirrberger Straße, 66421, Homburg/Saar, Germany
| | - Christian Ukena
- Klinik für Innere Medizin III-Kardiologie, Angiologie und Internistische Intensivmedizin, Universitätsklinikum des Saarlandes und Medizinische Fakultät der Universität des Saarlandes, Kirrberger Straße, 66421, Homburg/Saar, Germany
| | - Simina Selejan
- Klinik für Innere Medizin III-Kardiologie, Angiologie und Internistische Intensivmedizin, Universitätsklinikum des Saarlandes und Medizinische Fakultät der Universität des Saarlandes, Kirrberger Straße, 66421, Homburg/Saar, Germany
| | - Christian Werner
- Klinik für Innere Medizin III-Kardiologie, Angiologie und Internistische Intensivmedizin, Universitätsklinikum des Saarlandes und Medizinische Fakultät der Universität des Saarlandes, Kirrberger Straße, 66421, Homburg/Saar, Germany
| | - Christoph Maack
- Comprehensive Heart Failure Center (CHFC), University Clinic Würzburg, Würzburg, Germany
| | - Ulrich Laufs
- Klinik und Poliklinik für Kardiologie im Department für Innere Medizin, Neurologie und Dermatologie, Universitätsklinikum Leipzig, Leipzig, Germany
| | - Carsten Tschöpe
- Department of Cardiology, Universitätsmedizin Berlin, Charite, Campus Rudolf Virchow Clinic (CVK), Augustenburger Platz 1, 13353, Berlin, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site, Berlin, Germany
- Berlin-Brandenburg Institute of Health/Center for Regenerative Therapies (BIHCRT), Berlin, Germany
| | - Stefan D Anker
- Department of Cardiology, Universitätsmedizin Berlin, Charite, Campus Rudolf Virchow Clinic (CVK), Augustenburger Platz 1, 13353, Berlin, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site, Berlin, Germany
- Berlin-Brandenburg Institute of Health/Center for Regenerative Therapies (BIHCRT), Berlin, Germany
| | - Carolyn S P Lam
- National Heart Centre, Singapore and Duke-National University of Singapore, Singapore, Singapore
- University Medical Centre Groningen, Groningen, The Netherlands
- The George Institute for Global Health, Sydney, Australia
| | - Adriaan A Voors
- University Medical Centre Groningen, Groningen, The Netherlands
| | - Michael Böhm
- Klinik für Innere Medizin III-Kardiologie, Angiologie und Internistische Intensivmedizin, Universitätsklinikum des Saarlandes und Medizinische Fakultät der Universität des Saarlandes, Kirrberger Straße, 66421, Homburg/Saar, Germany
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Beta-3 adrenoceptors: A potential therapeutic target for heart disease. Eur J Pharmacol 2019; 858:172468. [DOI: 10.1016/j.ejphar.2019.172468] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 06/12/2019] [Accepted: 06/16/2019] [Indexed: 12/21/2022]
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Dehvari N, da Silva Junior ED, Bengtsson T, Hutchinson DS. Mirabegron: potential off target effects and uses beyond the bladder. Br J Pharmacol 2018; 175:4072-4082. [PMID: 29243229 DOI: 10.1111/bph.14121] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 10/16/2017] [Accepted: 11/16/2017] [Indexed: 12/31/2022] Open
Abstract
The β3 -adrenoceptor was initially an attractive target for several pharmaceutical companies due to its high expression in rodent adipose tissue, where its activation resulted in decreased adiposity and improved metabolic outputs (such as glucose handling) in animal models of obesity and Type 2 diabetes. However, several drugs acting at the β3 -adrenoceptor failed in clinical trials. This was thought to be due to their lack of efficacy at the human receptor. Recently, mirabegron, a β3 -adrenoceptor agonist with human efficacy, was approved in North America, Europe, Japan and Australia for the treatment of overactive bladder syndrome. There are indications that mirabegron may act at other receptors/targets, but whether they have any clinical relevance is relatively unknown. Besides overactive bladder syndrome, mirabegron may have other uses such as in the treatment of heart failure or metabolic disease. This review gives an overview of the off-target effects of mirabegron and its potential use in the treatment of other diseases. LINKED ARTICLES This article is part of a themed section on Molecular Pharmacology of GPCRs. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v175.21/issuetoc.
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Affiliation(s)
- Nodi Dehvari
- Department of Molecular Biosciences, The Wenner-Gren Institute, Arrhenius Laboratories F3, Stockholm University, Stockholm, Sweden
| | - Edilson Dantas da Silva Junior
- Department of Biophysics and Pharmacology, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Tore Bengtsson
- Department of Molecular Biosciences, The Wenner-Gren Institute, Arrhenius Laboratories F3, Stockholm University, Stockholm, Sweden
| | - Dana Sabine Hutchinson
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria, Australia
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Altara R, Giordano M, Nordén ES, Cataliotti A, Kurdi M, Bajestani SN, Booz GW. Targeting Obesity and Diabetes to Treat Heart Failure with Preserved Ejection Fraction. Front Endocrinol (Lausanne) 2017; 8:160. [PMID: 28769873 PMCID: PMC5512012 DOI: 10.3389/fendo.2017.00160] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Accepted: 06/23/2017] [Indexed: 12/12/2022] Open
Abstract
Heart failure with preserved ejection fraction (HFpEF) is a major unmet medical need that is characterized by the presence of multiple cardiovascular and non-cardiovascular comorbidities. Foremost among these comorbidities are obesity and diabetes, which are not only risk factors for the development of HFpEF, but worsen symptoms and outcome. Coronary microvascular inflammation with endothelial dysfunction is a common denominator among HFpEF, obesity, and diabetes that likely explains at least in part the etiology of HFpEF and its synergistic relationship with obesity and diabetes. Thus, pharmacological strategies to supplement nitric oxide and subsequent cyclic guanosine monophosphate (cGMP)-protein kinase G (PKG) signaling may have therapeutic promise. Other potential approaches include exercise and lifestyle modifications, as well as targeting endothelial cell mineralocorticoid receptors, non-coding RNAs, sodium glucose transporter 2 inhibitors, and enhancers of natriuretic peptide protective NO-independent cGMP-initiated and alternative signaling, such as LCZ696 and phosphodiesterase-9 inhibitors. Additionally, understanding the role of adipokines in HFpEF may lead to new treatments. Identifying novel drug targets based on the shared underlying microvascular disease process may improve the quality of life and lifespan of those afflicted with both HFpEF and obesity or diabetes, or even prevent its occurrence.
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Affiliation(s)
- Raffaele Altara
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- KG Jebsen Center for Cardiac Research, Oslo, Norway
- Department of Pathology, School of Medicine, University of Mississippi Medical Center, Jackson, MS, United States
- *Correspondence: Raffaele Altara,
| | - Mauro Giordano
- Department of Medical, Surgical, Neurological, Metabolic and Geriatrics Sciences, University of Campania “L. Vanvitelli”, Caserta, Italy
| | - Einar S. Nordén
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- KG Jebsen Center for Cardiac Research, Oslo, Norway
- Bjørknes College, Oslo, Norway
| | - Alessandro Cataliotti
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- KG Jebsen Center for Cardiac Research, Oslo, Norway
| | - Mazen Kurdi
- Faculty of Sciences, Department of Chemistry and Biochemistry, Lebanese University, Hadath, Lebanon
| | - Saeed N. Bajestani
- Department of Pathology, School of Medicine, University of Mississippi Medical Center, Jackson, MS, United States
- Department of Ophthalmology, School of Medicine, University of Mississippi Medical Center, Jackson, MS, United States
| | - George W. Booz
- Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center, Jackson, MS, United States
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