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Artykov M, Ozcelebi E, Sara MY, Gudeloglu A, Iskit AB, Aki FT. In vitro effects of β3-adrenoceptor agonist mirabegron on the human ureter. Neurourol Urodyn 2024; 43:1709-1717. [PMID: 38660954 DOI: 10.1002/nau.25483] [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: 01/14/2024] [Revised: 04/02/2024] [Accepted: 04/15/2024] [Indexed: 04/26/2024]
Abstract
INTRODUCTION This study aimed to investigate the effect of mirabegron, a β3-adrenoceptor agonist with widespread clinical use for treating overactive bladder disease, on isolated healthy human ureter strips. MATERIALS AND METHODS This was a prospective study employing a series of in vitro organ bath experiments using ureteral tissues of kidney grafts from 10 healthy donors. The ureteral strips were subjected to cumulative mirabegron concentrations (10-9-10-4.5 M). Effects on frequency or amplitude of spontaneous, 10 mM KCl- or EFS-induced contractions were evaluated. RESULTS Mirabegron decreased the frequency of spontaneous ureteric contraction in a concentration-dependent manner. Statistically significant decrease in the frequency of spontaneous contraction was observed at 10-8-10-4.5 M. In 10 mM KCl medium, statistically significant change in frequency was observed at 10-9-10-4.5 M. Statistically significant decrease in the amplitudes of spontaneous contraction was observed at 10-7-10-4.5 M. In a 10 mM KCl medium, statistically significant change in amplitudes was observed at 10-8-10-4.5 M. CONCLUSIONS Mirabegron reduced the amplitude and frequency of human ureter activity in in vitro organ bath studies. This effect was achieved in a dose-dependent manner on isolated tissue strips. Although monotherapy with mirabegron remains uncertain, this study has the potential to elucidate the mechanism underlying the effectiveness of mirabegron, particularly in combination therapy for ureteral stones.
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Affiliation(s)
- Meylis Artykov
- Department of Urology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Esin Ozcelebi
- Department of Pharmacology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Mehmet Yildirim Sara
- Department of Pharmacology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Ahmet Gudeloglu
- Department of Urology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Alper Bektas Iskit
- Department of Pharmacology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Fazil Tuncay Aki
- Department of Urology, Hacettepe University Faculty of Medicine, Ankara, Turkey
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Melecchi A, Canovai A, Amato R, Dal Monte M, Filippi L, Bagnoli P, Cammalleri M. Agonism of β3-Adrenoceptors Inhibits Pathological Retinal Angiogenesis in the Model of Oxygen-Induced Retinopathy. Invest Ophthalmol Vis Sci 2024; 65:34. [PMID: 39186263 PMCID: PMC11361380 DOI: 10.1167/iovs.65.10.34] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Accepted: 07/30/2024] [Indexed: 08/27/2024] Open
Abstract
Purpose In response to hypoxia, sympathetic fibers to the retina activate β-adrenoceptors (β-ARs) that play an important role in the regulation of vascular and neuronal functions. We investigated the role of β3-AR using the mouse model of oxygen-induced retinopathy (OIR). Methods Mouse pups were exposed to 75% oxygen at postnatal day 7 (PD7) followed by a return to room air at PD12. The β3-AR preferential agonist BRL37344 was subcutaneously administered once daily at different times after the return to room air. At PD17, the OIR mice underwent flash and pattern electroretinogram. After sacrifice, retinal wholemounts were used for vessel staining or immunohistochemistry for astrocytes, Müller cells, or retinal ganglion cells (RGCs). In retinal homogenates, the levels of markers associated with neovascularization (NV), the blood-retinal barrier (BRB), or astrocytes were determined by western blot, and quantitative reverse-transcription polymerase chain reaction was used to assess β3-AR messenger. Administration of the β3-AR antagonist SR59230A was performed to verify BRL37344 selectivity. Results β3-AR expression is upregulated in response to hypoxia, but its increase is prevented by BRL37344, which counteracts NV by inhibiting the pro-angiogenic pathway, activating the anti-angiogenic pathway, recovering BRB-associated markers, triggering nitric oxide production, and favoring revascularization of the central retina through recovered density of astrocytes that ultimately counteracts NV in the midperiphery. Vasculature rescue prevents dysfunctional retinal activity and counteracts OIR-associated retinal ganglion cell loss. Conclusions β3-AR has emerged as a crucial intermediary in hypoxia-dependent NV, suggesting a role of β3-AR agonists in the treatment of proliferative retinopathies.
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Affiliation(s)
| | | | - Rosario Amato
- Department of Biology, University of Pisa, Pisa, Italy
| | | | - Luca Filippi
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
- Neonatology Unit, Azienda Ospedaliero Universitaria Pisana, Pisa, Italy
| | - Paola Bagnoli
- Department of Biology, University of Pisa, Pisa, Italy
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Natarajan D, Ekambaram S, Tarantini S, Yelahanka Nagaraja R, Yabluchanskiy A, Hedrick AF, Awasthi V, Subramanian M, Csiszar A, Balasubramanian P. Chronic β3 adrenergic agonist treatment improves brain microvascular endothelial function and cognition in aged mice. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.09.602747. [PMID: 39026792 PMCID: PMC11257558 DOI: 10.1101/2024.07.09.602747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
Microvascular endothelial dysfunction, characterized by impaired neurovascular coupling, reduced glucose uptake, blood-brain barrier disruption, and microvascular rarefaction, plays a critical role in the pathogenesis of age-related vascular cognitive impairment (VCI). Emerging evidence points to non-cell autonomous mechanisms mediated by adverse circulating milieu (an increased ratio of pro-geronic to anti-geronic circulating factors) in the pathogenesis of endothelial dysfunction leading to impaired cerebral blood flow and cognitive decline in the aging population. In particular, age-related adipose dysfunction contributes, at least in part, to an unfavorable systemic milieu characterized by chronic hyperglycemia, hyperinsulinemia, dyslipidemia, and altered adipokine profile, which together contribute to microvascular endothelial dysfunction. Hence, in the present study, we aimed to test whether thermogenic stimulation, an intervention known to improve adipose and systemic metabolism by increasing cellular energy expenditure, could mitigate brain endothelial dysfunction and improve cognition in the aging population. Eighteen-month-old old C57BL/6J mice were treated with saline or CL (β3-adrenergic agonist) for 6 weeks followed by functional analysis to assess endothelial function and cognition. CL treatment improved neurovascular coupling responses and rescued brain glucose uptake in aged animals. In addition, CL treatment also attenuated blood-brain barrier leakage and associated neuroinflammation in the cortex of aged animals. More importantly, these beneficial changes in microvascular function translated to improved cognitive performance in radial arm water maze and Y-maze tests. Our results suggest that β3-adrenergic agonist treatment improves multiple aspects of brain microvascular endothelial function and can be potentially repurposed for treating age-associated cognitive decline.
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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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Tropea T, Mavichak W, Evangelinos A, Brennan-Richardson C, Cottrell EC, Myers JE, Johnstone ED, Brownbill P. Fetoplacental vascular effects of maternal adrenergic antihypertensive and cardioprotective medications in pregnancy. J Hypertens 2023; 41:1675-1687. [PMID: 37694528 PMCID: PMC10552840 DOI: 10.1097/hjh.0000000000003532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 06/07/2023] [Accepted: 07/24/2023] [Indexed: 09/12/2023]
Abstract
Maternal cardiovascular diseases, including hypertension and cardiac conditions, are associated with poor fetal outcomes. A range of adrenergic antihypertensive and cardioprotective medications are often prescribed to pregnant women to reduce major maternal complications during pregnancy. Although these treatments are not considered teratogenic, they may have detrimental effects on fetal growth and development, as they cross the fetoplacental barrier, and may contribute to placental vascular dysregulation. Medication risk assessment sheets do not include specific advice to clinicians and women regarding the safety of these therapies for use in pregnancy and the potential off-target effects of adrenergic medications on fetal growth have not been rigorously conducted. Little is known of their effects on the fetoplacental vasculature. There is also a dearth of knowledge on adrenergic receptor activation and signalling within the endothelium and vascular smooth muscle cells of the human placenta, a vital organ in the maintenance of adequate blood flow to satisfy fetal growth and development. The fetoplacental circulation, absent of sympathetic innervation, and unique in its reliance on endocrine, paracrine and autocrine influence in the regulation of vascular tone, appears vulnerable to dysregulation by adrenergic antihypertensive and cardioprotective medications compared with the adult peripheral circulation. This semi-systematic review focuses on fetoplacental vascular expression of adrenergic receptors, associated cell signalling mechanisms and predictive consequences of receptor activation/deactivation by antihypertensive and cardioprotective medications.
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Affiliation(s)
- Teresa Tropea
- Maternal & Fetal Health Research Centre, Division of Developmental Biology & Medicine, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester
- St Mary's Hospital, Manchester University Hospital NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Weerawaroon Mavichak
- Maternal & Fetal Health Research Centre, Division of Developmental Biology & Medicine, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester
- St Mary's Hospital, Manchester University Hospital NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Angelos Evangelinos
- Maternal & Fetal Health Research Centre, Division of Developmental Biology & Medicine, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester
- St Mary's Hospital, Manchester University Hospital NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Charlotte Brennan-Richardson
- Maternal & Fetal Health Research Centre, Division of Developmental Biology & Medicine, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester
- St Mary's Hospital, Manchester University Hospital NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Elizabeth C. Cottrell
- Maternal & Fetal Health Research Centre, Division of Developmental Biology & Medicine, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester
- St Mary's Hospital, Manchester University Hospital NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Jenny E. Myers
- Maternal & Fetal Health Research Centre, Division of Developmental Biology & Medicine, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester
- St Mary's Hospital, Manchester University Hospital NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Edward D. Johnstone
- Maternal & Fetal Health Research Centre, Division of Developmental Biology & Medicine, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester
- St Mary's Hospital, Manchester University Hospital NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Paul Brownbill
- Maternal & Fetal Health Research Centre, Division of Developmental Biology & Medicine, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester
- St Mary's Hospital, Manchester University Hospital NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
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Potocka N, Skrzypa M, Zadarko-Domaradzka M, Barabasz Z, Penar-Zadarko B, Sakowicz A, Zadarko E, Zawlik I. Effects of the Trp64Arg Polymorphism in the ADRB3 Gene on Body Composition, Cardiorespiratory Fitness, and Physical Activity in Healthy Adults. Genes (Basel) 2023; 14:1541. [PMID: 37628593 PMCID: PMC10454489 DOI: 10.3390/genes14081541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/20/2023] [Accepted: 07/26/2023] [Indexed: 08/27/2023] Open
Abstract
The ADRB3 gene plays a role in energy expenditure by participating in lipolysis, which affects body composition and performance. The ADRB3 rs4994 polymorphism has been studied in groups of athletes, overweight individuals, and obese and diabetic patients, but it has not been studied in young and healthy adults so far. In the present study, we examined the association of ADRB3 rs4994 polymorphism with body composition, somatotype, cardiorespiratory fitness and physical activity in young, healthy adults (N = 304). All subjects had anthropometric measurements, and somatotypes were assessed using the Heath-Carter method. In addition, cardiorespiratory fitness and physical activity levels were assessed. Genotyping for the ADRB3 gene was performed using a PCR-RFLP method. In the male group, body components were associated with the Trp64Trp genotype (waist circumference (p = 0.035), hip circumference (p = 0.029), BF (%) (p = 0.008), and BF (kg) (p = 0.010), BMI (p = 0.005), WHtR (p = 0.021), and BAI (p = 0.006)). In addition, we observed that the Trp64Trp genotype was associated with somatotype components (p = 0.013). In contrast, the Arg allele was associated with the ectomorphic components (0.006). We also observed a positive impact of the Trp64Trp genotype with maximal oxygen uptake (p= 0.023) and oxygen pulse (p = 0.024). We observed a negative relationship of the Trp64Trp genotype in the female group with reported moderate-intensity exercise (p = 0.036). In conclusion, we found an association of the Trp64 allele with anthropometric traits, somatotype and parameters describing physical performance in the male group. In the female subpopulation, we only found an effect of the polymorphism Trp64Arg on the level of physical activity for moderate-intensity exercise.
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Affiliation(s)
- Natalia Potocka
- Laboratory of Molecular Biology, Centre for Innovative Research in Medical and Natural Sciences, Medical College of Rzeszow University, Warzywna 1a, 35-959 Rzeszow, Poland; (N.P.); (M.S.)
| | - Marzena Skrzypa
- Laboratory of Molecular Biology, Centre for Innovative Research in Medical and Natural Sciences, Medical College of Rzeszow University, Warzywna 1a, 35-959 Rzeszow, Poland; (N.P.); (M.S.)
| | - Maria Zadarko-Domaradzka
- Institute of Physical Culture Sciences, Medical College of Rzeszow University, Cicha 2a, 35-959 Rzeszow, Poland; (M.Z.-D.); (E.Z.)
| | - Zbigniew Barabasz
- Department of Physical Education, State University of Applied Sciences in Krosno, Rynek 1, 38-400 Krosno, Poland;
| | - Beata Penar-Zadarko
- Institute of Health Sciences, Medical College of Rzeszow University, Kopisto 2a, 35-959 Rzeszow, Poland;
| | - Agata Sakowicz
- Department of Medical Biotechnology, Medical University of Lodz, Żeligowskiego 7/9, 90-752 Lodz, Poland;
| | - Emilian Zadarko
- Institute of Physical Culture Sciences, Medical College of Rzeszow University, Cicha 2a, 35-959 Rzeszow, Poland; (M.Z.-D.); (E.Z.)
| | - Izabela Zawlik
- Laboratory of Molecular Biology, Centre for Innovative Research in Medical and Natural Sciences, Medical College of Rzeszow University, Warzywna 1a, 35-959 Rzeszow, Poland; (N.P.); (M.S.)
- Institute of Medical Sciences, Medical College of Rzeszow University, Kopisto 2a, 35-959 Rzeszow, Poland
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Zhang JY, Zhao Q, Li XM, Liu F, Zhao Q, Men L, Chen QJ, Zhai H, Yang YN. Association of an ADRB3 Variant with Coronary Artery Disease Within the Chinese Han Population: Construction of a Predictive Nomogram Model. Genet Test Mol Biomarkers 2023; 27:81-89. [PMID: 36989522 DOI: 10.1089/gtmb.2022.0071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023] Open
Abstract
Objective: Coronary artery disease (CAD) is a the most common type of heart disease, and is associated with the highest mortality rate. The role of the β3-adrenergic receptor gene (ADRB3) in energy homeostasis and lipolysis suggests that it may be associated with obesity, insulin resistance, diabetes, and hypertension. Herein, we sought to examine the relationship between CAD and variants of the ADRB3 gene in individuals with Han and Uygur ethnicities in China. Methods: All 1022 participants were genotyped for two ADRB3 single nucleotide polymorphisms (SNPs; rs1892818 and rs9693898) using real-time polymerase chain reaction (TaqMan). Uygur (259 CAD patients, 161 control group) and Han (308 CAD patients, 294 control group) were included in two case-control studies. We subsequently developed a predictive model using ADRB3 genetic variation and clinical variables to predict risk of CAD. Results: The rs1892818 CT genotype (8.5% vs 3.9%, p = 0.019) and T allele (4.3% vs 1.9%, p = 0.021) were more frequently detected in the control subjects compared to CAD patients of the Han population but not in the Uygur population. The rs9693898 was not associated with CAD in either ethnic population. Logistic regression analysis further demonstrated that carriers of the rs1892818 CT genotype had a lower risk of CAD than did those with the CC genotype (CT vs CC, p = 0.044, odds ratio [OR] = 0.441, 95% confidence interval [CI]: 0.199-0.976). Using this data, we constructed a predictive nomogram model for CAD with an area under the curve (95% CI) of 0.722 (0.682, 0.761). Conclusions: Our results suggest that rs1892818 is associated with CAD in the Han population and that the CT genotype of rs1892818 may serve as a protective factor for CAD in Han individuals. The proposed nomograms can be used for the prediction of CAD in this population.
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Affiliation(s)
- Jin-Yu Zhang
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Clinical Medical Research Institute of The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
- Department of Rehabilitation, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Qian Zhao
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Clinical Medical Research Institute of The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Department of Cardiology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Xiao-Mei Li
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Clinical Medical Research Institute of The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Department of Cardiology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Fen Liu
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Clinical Medical Research Institute of The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Department of Cardiology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Qiang Zhao
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Clinical Medical Research Institute of The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Li Men
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Clinical Medical Research Institute of The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Qing-Jie Chen
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Clinical Medical Research Institute of The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Hui Zhai
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Clinical Medical Research Institute of The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Yi-Ning Yang
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Clinical Medical Research Institute of The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
- State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Department of Cardiology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
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Wu S, Ootawa T, Sekio R, Smith H, Islam MZ, Uno Y, Shiraishi M, Miyamoto A. Involvement of beta3-adrenergic receptors in relaxation mediated by nitric oxide in chicken basilar artery. Poult Sci 2023; 102:102633. [PMID: 37001317 PMCID: PMC10070147 DOI: 10.1016/j.psj.2023.102633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 02/21/2023] [Accepted: 03/02/2023] [Indexed: 03/09/2023] Open
Abstract
The response of basilar arteries to noradrenaline varies among many animal species, but remains little studied in poultry. Accordingly, we aimed to characterize the adrenergic receptor (AR) subtypes that modulate vascular response in basilar arteries in the chicken, with isometric recording of arterial ring tension using an organ bath. We demonstrated the presence of both alpha and beta (α and β) receptor subtypes through evaluating the response to noradrenaline, with and without a range of β-AR and α-AR antagonists. The concentration-dependent relaxations then induced by a range of β-AR agonists indicated a potency ranking of isoproterenol > noradrenaline > adrenaline > procaterol. We then investigated the effects of β-AR antagonists that attenuate the effect of isoproterenol (propranolol for β1,2,3-ARs, atenolol for β1-ARs, butoxamine for β2-ARs, and SR 59230A for β3-ARs), with Schild regression analysis, ascertaining multiple β-AR subtypes, with neither the β1-AR nor the β2-AR as the dominant subtype. SR 59230A was the only antagonist to yield a pA2 value (7.52) close to the reported equivalent for the relevant receptor subtype. Furthermore, treatment with SR 58611 (a β3-AR agonist) induced relaxation, which was inhibited (P < 0.01) by L-NNA and SR 59230A. Additionally, treating basilar arterial strips (containing endothelium) with SR 58611 induced nitric oxide (NO) production, which was inhibited (P < 0.01) by L-NNA and SR 59230A. Based on this first characterization of AR subtypes in chicken basilar arteries (to our knowledge), we suggest that α- and β-ARs are involved in contraction and relaxation, and that β3-ARs, especially those on the endothelium, may play an important role in vasodilation via NO release.
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Cammalleri M, Amato R, Dal Monte M, Filippi L, Bagnoli P. The β3 adrenoceptor in proliferative retinopathies: "Cinderella" steps out of its family shadow. Pharmacol Res 2023; 190:106713. [PMID: 36863427 DOI: 10.1016/j.phrs.2023.106713] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 02/14/2023] [Accepted: 02/27/2023] [Indexed: 03/04/2023]
Abstract
In the retina, hypoxic condition leads to overgrowing leaky vessels resulting in altered metabolic supply that may cause impaired visual function. Hypoxia-inducible factor-1 (HIF-1) is a central regulator of the retinal response to hypoxia by activating the transcription of numerous target genes, including vascular endothelium growth factor, which acts as a major player in retinal angiogenesis. In the present review, oxygen urge by the retina and its oxygen sensing systems including HIF-1 are discussed in respect to the role of the beta-adrenergic receptors (β-ARs) and their pharmacologic manipulation in the vascular response to hypoxia. In the β-AR family, β1- and β2-AR have long been attracting attention because their pharmacology is intensely used for human health, while β3-AR, the third and last cloned receptor is no longer increasingly emerging as an attractive target for drug discovery. Here, β3-AR, a main character in several organs including the heart, the adipose tissue and the urinary bladder, but so far a supporting actor in the retina, has been thoroughly examined in respect to its function in retinal response to hypoxia. In particular, its oxygen dependence has been taken as a key indicator of β3-AR involvement in HIF-1-mediated responses to oxygen. Hence, the possibility of β3-AR transcription by HIF-1 has been discussed from early circumstantial evidence to the recent demonstration that β3-AR acts as a novel HIF-1 target gene by playing like a putative intermediary between oxygen levels and retinal vessel proliferation. Thus, targeting β3-AR may implement the therapeutic armamentarium against neovascular pathologies of the eye.
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Affiliation(s)
| | - Rosario Amato
- Department of Biology, University of Pisa, Pisa, Italy
| | | | - Luca Filippi
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Paola Bagnoli
- Department of Biology, University of Pisa, Pisa, Italy.
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Mirabegron relaxes arteries from human visceral adipose tissue through antagonism of α1-adrenergic receptors. Vascul Pharmacol 2022; 146:107094. [PMID: 35934296 DOI: 10.1016/j.vph.2022.107094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 07/13/2022] [Accepted: 08/02/2022] [Indexed: 11/21/2022]
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HIF-1-Dependent Induction of β3 Adrenoceptor: Evidence from the Mouse Retina. Cells 2022; 11:cells11081271. [PMID: 35455951 PMCID: PMC9029465 DOI: 10.3390/cells11081271] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 04/06/2022] [Accepted: 04/07/2022] [Indexed: 02/01/2023] Open
Abstract
A major player in the homeostatic response to hypoxia is the hypoxia-inducible factor (HIF)-1 that transactivates a number of genes involved in neovessel proliferation in response to low oxygen tension. In the retina, hypoxia overstimulates β-adrenoceptors (β-ARs) which play a key role in the formation of pathogenic blood vessels. Among β-ARs, β3-AR expression is increased in proliferating vessels in concomitance with increased levels of HIF-1α and vascular endothelial growth factor (VEGF). Whether, similarly to VEGF, hypoxia-induced β3-AR upregulation is driven by HIF-1 is still unknown. We used the mouse model of oxygen-induced retinopathy (OIR), an acknowledged model of retinal angiogenesis, to verify the hypothesis of β3-AR transcriptional regulation by HIF-1. Investigation of β3-AR regulation over OIR progression revealed that the expression profile of β3-AR depends on oxygen tension, similar to VEGF. The additional evidence that HIF-1α stabilization decouples β3-AR expression from oxygen levels further indicates that HIF-1 regulates the expression of the β3-AR gene in the retina. Bioinformatics predicted the presence of six HIF-1 binding sites (HBS #1-6) upstream and inside the mouse β3-AR gene. Among these, HBS #1 has been identified as the most suitable HBS for HIF-1 binding. Chromatin immunoprecipitation-qPCR demonstrated an effective binding of HIF-1 to HBS #1 indicating the existence of a physical interaction between HIF-1 and the β3-AR gene. The additional finding that β3-AR gene expression is concomitantly activated indicates the possibility that HIF-1 transactivates the β3-AR gene. Our results are indicative of β3-AR involvement in HIF-1-mediated response to hypoxia.
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Asif H, Barnett SD, Buxton ILO. Title: β3 Adrenergic Receptor Signaling in the Human Myometrium. Reprod Sci 2022; 30:124-134. [PMID: 35380411 PMCID: PMC8980516 DOI: 10.1007/s43032-022-00917-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 03/11/2022] [Indexed: 01/06/2023]
Abstract
Preterm labor leading to preterm birth is the leading cause of infant morbidity and mortality. Although β2 adrenergic agonists fail to provide adequate tocolysis, the expression of the β3 adrenergic receptor in myometrium and its unique signaling suggest a role for β3 agonist in the management of preterm labor. Western blot analysis showed that the β3 adrenergic receptor expression increased in human pregnancy myometrium compared to nonpregnant tissues (p < 0.0001). There was no difference in β3 adrenergic receptor expression throughout pregnancy (p > 0.05). The addition of the β3 agonist mirabegron in the tissue bath relaxed oxytocin contracted myometrium with an EC50 of 41.5 µM. Relaxation was partially blocked by the addition of the eNOS blocker Nω-nitro-L-arginine, or the large conductance potassium channel blocker paxilline. Combination of Nω-nitro-L-arginine and paxilline prevented mirabegron-mediated relaxation. Imaging revealed that the β3 adrenergic receptors are expressed by both myocyte and microvascular endothelial cells isolated from human myometrium. Nitric oxide production measured by 4-amino-5-methylamino-2',7'-difluorofluorescein diacetate revealed that mirabegron stimulated nitric oxide production in myometrial endothelial cells. These data suggest that both endothelial and smooth muscle cells contribute to relaxation through disparate signaling pathways. Repurposing of approved medications tested in human myometrium as uterine tocolytics can advance prevention of preterm birth. These data argue that further examination of β3 adrenergic receptor signaling in myometrium may reveal mirabegron as a useful tocolytic in combination tocolysis regimens.
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Affiliation(s)
- Hazik Asif
- School of Medicine, Department of Pharmacology, Myometrial Function Laboratory, University of Nevada, Reno, NV 89557-0318 USA
| | - Scott D. Barnett
- School of Medicine, Department of Pharmacology, Myometrial Function Laboratory, University of Nevada, Reno, NV 89557-0318 USA
| | - Iain L. O. Buxton
- School of Medicine, Department of Pharmacology, Myometrial Function Laboratory, University of Nevada, Reno, NV 89557-0318 USA
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Filippi L, Cammalleri M, Amato R, Ciantelli M, Pini A, Bagnoli P, Dal Monte M. Decoupling Oxygen Tension From Retinal Vascularization as a New Perspective for Management of Retinopathy of Prematurity. New Opportunities From β-adrenoceptors. Front Pharmacol 2022; 13:835771. [PMID: 35126166 PMCID: PMC8814365 DOI: 10.3389/fphar.2022.835771] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 01/05/2022] [Indexed: 12/20/2022] Open
Abstract
Retinopathy of prematurity (ROP) is an evolutive and potentially blinding eye disease that affects preterm newborns. Unfortunately, until now no conservative therapy of active ROP with proven efficacy is available. Although ROP is a multifactorial disease, premature exposition to oxygen concentrations higher than those intrauterine, represents the initial pathogenetic trigger. The increase of oxygenation in a retina still incompletely vascularized promotes the downregulation of proangiogenic factors and finally the interruption of vascularization (ischemic phase). However, the increasing metabolic requirement of the ischemic retina induces, over the following weeks, a progressive hypoxia that specularly increases the levels of proangiogenic factors finally leading to proliferative retinopathy (proliferative phase). Considering non-modifiable the coupling between oxygen levels and vascularization, so far, neonatologists and ophthalmologists have "played defense", meticulously searching the minimum necessary concentration of oxygen for individual newborns, refining their diagnostic ability, adopting a careful monitoring policy, ready to decisively intervene only in a very advanced stage of disease progression. However, recent advances have demonstrated the possibility to pharmacologically modulate the relationship between oxygen and vascularization, opening thus the perspective for new therapeutic or preventive opportunities. The perspective of a shift from a defensive towards an attack strategy is now at hand.
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Affiliation(s)
- Luca Filippi
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | | | - Rosario Amato
- Department of Biology, University of Pisa, Pisa, Italy
| | | | - Alessandro Pini
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Paola Bagnoli
- Department of Biology, University of Pisa, Pisa, Italy
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14
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Filippi L, Pini A, Cammalleri M, Bagnoli P, Dal Monte M. β3-Adrenoceptor, a novel player in the round-trip from neonatal diseases to cancer: Suggestive clues from embryo. Med Res Rev 2021; 42:1179-1201. [PMID: 34967048 PMCID: PMC9303287 DOI: 10.1002/med.21874] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 09/29/2021] [Accepted: 12/15/2021] [Indexed: 01/19/2023]
Abstract
The role of the β-adrenoceptors (β-ARs) in hypoxia-driven diseases has gained visibility after the demonstration that propranolol promotes the regression of infantile hemangiomas and ameliorates the signs of retinopathy of prematurity (ROP). Besides the role of β2-ARs, preclinical studies in ROP have also revealed that β3-ARs are upregulated by hypoxia and that they are possibly involved in retinal angiogenesis. In a sort of figurative round trip, peculiarities typical of ROP, where hypoxia drives retinal neovascularization, have been then translated to cancer, a disease equally characterized by hypoxia-driven angiogenesis. In this step, investigating the role of β3-ARs has taken advantage of the assumption that cancer growth uses a set of strategies in common with embryo development. The possibility that hypoxic induction of β3-ARs may represent one of the mechanisms through which primarily embryo (and then cancer, as an astute imitator) adapts to grow in an otherwise hostile environment, has grown evidence. In both cancer and embryo, β3-ARs exert similar functions by exploiting a metabolic shift known as the Warburg effect, by acquiring resistance against xenobiotics, and by inducing a local immune tolerance. An additional potential role of β3-AR as a marker of stemness has been suggested by the finding that its antagonism induces cancer cell differentiation evoking that β3-ARs may help cancer to grow in a nonhospital environment, a strategy also exploited by embryos. From cancer, the round trip goes back to neonatal diseases for which new possible interpretative keys and potential pharmacological perspectives have been suggested.
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Affiliation(s)
- Luca Filippi
- Department of Clinical and Experimental Medicine, Neonatology and Neonatal Intensive Care UnitUniversity of PisaPisaItaly
| | - Alessandro Pini
- Department of Experimental and Clinical MedicineUniversity of FlorenceFlorenceItaly
| | - Maurizio Cammalleri
- Department of Biology, Unit of General PhysiologyUniversity of PisaPisaItaly
| | - Paola Bagnoli
- Department of Biology, Unit of General PhysiologyUniversity of PisaPisaItaly
| | - Massimo Dal Monte
- Department of Biology, Unit of General PhysiologyUniversity of PisaPisaItaly
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15
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Bubb KJ, Harmer JA, Finemore M, Aitken SJ, Ali ZS, Billot L, Chow C, Golledge J, Mister R, Gray MP, Grieve SM, Hamburg N, Keech AC, Patel S, Puttaswamy V, Figtree GA. Protocol for the Stimulating β 3-Adrenergic Receptors for Peripheral Artery Disease (STAR-PAD) trial: a double-blinded, randomised, placebo-controlled study evaluating the effects of mirabegron on functional performance in patients with peripheral arterial disease. BMJ Open 2021; 11:e049858. [PMID: 34588252 PMCID: PMC8479946 DOI: 10.1136/bmjopen-2021-049858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
INTRODUCTION There is currently only one approved medication effective at improving walking distance in people with intermittent claudication. Preclinical data suggest that the β3-adrenergic receptor agonist (mirabegron) could be repurposed to treat intermittent claudication associated with peripheral artery disease. The aim of the Stimulating β3-Adrenergic Receptors for Peripheral Artery Disease (STAR-PAD) trial is to test whether mirabegron improves walking distance in people with intermittent claudication. METHODS AND ANALYSIS The STAR-PAD trial is a Phase II, multicentre, double-blind, randomised, placebo-controlled trial of mirabegron versus placebo on walking distance in patients with PAD. A total of 120 patients aged ≥40 years with stable PAD and intermittent claudication will be randomly assigned (1:1 ratio) to receive either mirabegron (50 mg orally once a day) or matched placebo, for 12 weeks. The primary endpoint is change in peak walking distance as assessed by a graded treadmill test. Secondary endpoints will include: (i) initial claudication distance; (ii) average daily step count and total step count and (iii) functional status and quality of life assessment. Mechanistic substudies will examine potential effects of mirabegron on vascular function, including brachial artery flow-mediate dilatation; MRI assessment of lower limb blood flow, tissue perfusion and arterial stiffness and numbers and angiogenesis potential of endothelial progenitor cells. Given that mirabegron is safe and clinically available for alternative purposes, a positive study is positioned to immediately impact patient care. ETHICS AND DISSEMINATION The STAR-PAD trial is approved by the Northern Sydney Local Health District Human Research Ethics Committee (HREC/18/HAWKE/50). The study results will be published in peer-reviewed medical or scientific journals and presented at scientific meetings, regardless of the study outcomes. TRIAL REGISTRATION NUMBER ACTRN12619000423112; Results.
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Affiliation(s)
- Kristen J Bubb
- Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
- Kolling Institute of Medical Research, Cardiothoracic and Vascular Health, University of Sydney, St Leonards, New South Wales, Australia
| | - Jason A Harmer
- Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
- Department of Cardiology, Royal North Shore Hospital, St Leonards, New South Wales, Australia
| | - Meghan Finemore
- Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
- Kolling Institute of Medical Research, Cardiothoracic and Vascular Health, University of Sydney, St Leonards, New South Wales, Australia
| | - Sarah Joy Aitken
- Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
- Concord Repatriation General Hospital, Concord, New South Wales, Australia
| | - Zara S Ali
- Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
- Kolling Institute of Medical Research, Cardiothoracic and Vascular Health, University of Sydney, St Leonards, New South Wales, Australia
| | - Laurent Billot
- The George Institute for Global Health, UNSW Sydney, Newtown, New South Wales, Australia
| | - Clara Chow
- Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
- The George Institute for Global Health, UNSW Sydney, Newtown, New South Wales, Australia
- Westmead Applied Research Centre, Faculty of Medicine and Health, University of Sydney, Westmead, New South Wales, Australia
- Department of Cardiology, Westmead Hospital, Westmead, New South Wales, Australia
| | - Jonathan Golledge
- Vascular Biology Unit, James Cook University Queensland Research Centre for Peripheral Vascular Disease, Townsville, Queensland, Australia
| | - Rebecca Mister
- NHMRC Clinical Trials Centre, University of Sydney, Camperdown, New South Wales, Australia
| | - Michael P Gray
- Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
- Kolling Institute of Medical Research, Cardiothoracic and Vascular Health, University of Sydney, St Leonards, New South Wales, Australia
| | - Stuart M Grieve
- The Heart Research Institute, Newtown, New South Wales, Australia
- Charles Perkins Centre, University of Sydney, Camperdown, New South Wales, Australia
- Department of Cardiology, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia
| | | | - Anthony C Keech
- Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
- NHMRC Clinical Trials Centre, University of Sydney, Camperdown, New South Wales, Australia
- Charles Perkins Centre, University of Sydney, Camperdown, New South Wales, Australia
| | - Sanjay Patel
- Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
- The Heart Research Institute, Newtown, New South Wales, Australia
- Charles Perkins Centre, University of Sydney, Camperdown, New South Wales, Australia
- Department of Cardiology, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia
| | - Vikram Puttaswamy
- Vascular Surgery, North Shore Private Hospital, Sydney, New South Wales, Australia
| | - Gemma A Figtree
- Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
- Kolling Institute of Medical Research, Cardiothoracic and Vascular Health, University of Sydney, St Leonards, New South Wales, Australia
- Department of Cardiology, Royal North Shore Hospital, St Leonards, New South Wales, Australia
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16
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Troy AM, Cheng HM. Human microvascular reactivity: a review of vasomodulating stimuli and non-invasive imaging assessment. Physiol Meas 2021; 42. [PMID: 34325417 DOI: 10.1088/1361-6579/ac18fd] [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: 03/31/2021] [Accepted: 07/29/2021] [Indexed: 11/11/2022]
Abstract
The microvasculature serves an imperative function in regulating perfusion and nutrient exchange throughout the body, adaptively altering blood flow to preserve hemodynamic and metabolic homeostasis. Its normal functioning is vital to tissue health, whereas its dysfunction is present in many chronic conditions, including diabetes, heart disease, and cognitive decline. As microvascular dysfunction often appears early in disease progression, its detection can offer early diagnostic information. To detect microvascular dysfunction, one uses imaging to probe the microvasculature's ability to react to a stimulus, also known as microvascular reactivity (MVR). An assessment of MVR requires an integrated understanding of vascular physiology, techniques for stimulating reactivity, and available imaging methods to capture the dynamic response. Practical considerations, including compatibility between the selected stimulus and imaging approach, likewise require attention. In this review, we provide a comprehensive foundation necessary for informed imaging of MVR, with a particular focus on the challenging endeavor of assessing microvascular function in deep tissues.
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Affiliation(s)
- Aaron M Troy
- Institute of Biomedical Engineering, University of Toronto, Toronto, CANADA
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17
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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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18
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Ferreira Miranda MT, Lemos MP, Sasaki JE, Mota GR, Marocolo M, Sordi CCD, Almeida TR, Dias da Silva VJ, Neto OB. Exercise training ameliorates adrenergic control in spontaneously hypertensive rats. Clin Exp Hypertens 2021; 43:101-111. [PMID: 32924628 DOI: 10.1080/10641963.2020.1817474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The goal of this study was to examine vascular control after sympathetic stimulation by tyramine infusion in hypertensive rats submitted to swimming training. To this end, male rats were assigned to the following groups: sedentary (SN) and trained normotensive (TN), sedentary (SH) and trained hypertensive (TH). Arterial pressure (AP), heart rate (HR), HR variability (HRV), AP variability (APV), and cardiac autonomic function were recorded. Following, infusion of tyramine was administrated. The TN and TH showed a lower resting HR compared with their respective sedentary groups (p < .05). Pressure levels were less in TH than SH (p < .05). The TH showed a higher HRV together with a lower APV in comparison to SH (p < .05). The sympathetic modulation of HRV and APV was lower in TH than in SH (p < .05). Both trained groups presented an increased parasympathetic modulation of HRV compared with their respective sedentary groups (p < .05). The TN and TH groups had a higher vagal effect in comparison with their respective sedentary groups (p < .001). The sympathetic effect was lower in TH than in SH (p < .001). Pressor and HR responses to tyramine in different doses were attenuated in TH (p < .001). Further analysis showed a significant association between infusion of tyramine and normalized LF component of HRV (r = 0.84, p < .001), systolic APV (r = 0.58, p < .001) and diastolic APV (r = 0.49, p < .001). In conclusion, exercise training provokes less pressor response variation by tyramine infusion in hypertensive animals suggesting sympathetic nerve endings adjustments and decrease of the vasoconstrictor effect attenuates injury caused by hypertension improving cardiovascular autonomic dysfunction, which can be associated with sympathetic attenuation.
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Affiliation(s)
- Munique Tostes Ferreira Miranda
- Exercise Science, Health and Human Performance Research Group, Department of Sport Sciences, Federal University of Triângulo Mineiro , Uberaba, Brazil.,Department of Medicine, Federal University of São Paulo , São Paulo, Brazil
| | - Marina Paiva Lemos
- Exercise Science, Health and Human Performance Research Group, Department of Sport Sciences, Federal University of Triângulo Mineiro , Uberaba, Brazil
| | - Jeffer Eidi Sasaki
- Exercise Science, Health and Human Performance Research Group, Department of Sport Sciences, Federal University of Triângulo Mineiro , Uberaba, Brazil
| | - Gustavo R Mota
- Exercise Science, Health and Human Performance Research Group, Department of Sport Sciences, Federal University of Triângulo Mineiro , Uberaba, Brazil
| | - Moacir Marocolo
- Department of Physiology, Federal University of Juiz de Fora , Juiz de Fora, Brazil
| | - Carla Cristina de Sordi
- Department of Endocrinology and Metabolism, Postgraduate Course on Health Science, Federal University of Triângulo Mineiro , Uberaba, Brazil
| | | | | | - Octávio Barbosa Neto
- Exercise Science, Health and Human Performance Research Group, Department of Sport Sciences, Federal University of Triângulo Mineiro , Uberaba, Brazil.,Department of Physiology, Federal University of Triângulo Mineiro , Uberaba, Brazil
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19
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Michel LYM, Farah C, Balligand JL. The Beta3 Adrenergic Receptor in Healthy and Pathological Cardiovascular Tissues. Cells 2020; 9:cells9122584. [PMID: 33276630 PMCID: PMC7761574 DOI: 10.3390/cells9122584] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 11/27/2020] [Accepted: 11/30/2020] [Indexed: 12/15/2022] Open
Abstract
The third isotype of beta-adrenoreceptors (β3-AR) has recently come (back) into focus after the observation of its expression in white and beige human adipocytes and its implication in metabolic regulation. This coincides with the recent development and marketing of agonists at the human receptor with superior specificity. Twenty years ago, however, we and others described the expression of β3-AR in human myocardium and its regulation of contractility and cardiac remodeling. Subsequent work from many laboratories has since expanded the characterization of β3-AR involvement in many aspects of cardiovascular physio(patho)logy, justifying the present effort to update current paradigms under the light of the most recent evidence.
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Affiliation(s)
- Lauriane Y. M. Michel
- Pole of Pharmacology and Therapeutics (FATH), Institut de Recherche Experimentale et Clinique (IREC), Université Catholique de Louvain, B1.57.04, 57 Avenue Hippocrate, 1200 Brussels, Belgium; (L.Y.M.M.); (C.F.)
| | - Charlotte Farah
- Pole of Pharmacology and Therapeutics (FATH), Institut de Recherche Experimentale et Clinique (IREC), Université Catholique de Louvain, B1.57.04, 57 Avenue Hippocrate, 1200 Brussels, Belgium; (L.Y.M.M.); (C.F.)
| | - Jean-Luc Balligand
- Pole of Pharmacology and Therapeutics (FATH), Institut de Recherche Experimentale et Clinique (IREC), Université Catholique de Louvain, B1.57.04, 57 Avenue Hippocrate, 1200 Brussels, Belgium; (L.Y.M.M.); (C.F.)
- Department of Medicine, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, 10 Avenue Hippocrate, 1200 Brussels, Belgium
- Correspondence: ; Tel.: +32-27645262
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20
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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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21
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Yang W, Li Q, Duncan JW, Bakrania BA, Bradshaw JL, Granger JP, Rana S, Spradley FT. Luteolin-induced vasorelaxation in uterine arteries from normal pregnant rats. Pregnancy Hypertens 2020; 23:11-17. [PMID: 33161224 DOI: 10.1016/j.preghy.2020.10.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 10/15/2020] [Accepted: 10/16/2020] [Indexed: 12/20/2022]
Abstract
BACKGROUND The flavonoid, luteolin, promotes vasorelaxation in various arteries through endothelial-dependent and independent mechanisms. Although there is growing interest in the vasoactive effects of flavonoids on maternal vascular function during pregnancy, it is unknown whether luteolin elicits vasorelaxation in the uterine circulation. We tested the hypothesis that luteolin induces vasorelaxation via endothelial-dependent mechanisms in uterine arteries from normal pregnant rats during late gestation. METHODS Uterine arteries and aortas were isolated from Sprague-Dawley rats at gestational day 19 and prepared for wire myography. RESULTS The potency of luteolin-induced vasorelaxation was examined between uterine arteries and the aortas. By 50 µM of luteolin, there was complete relaxation (100.5 ± 5.2%) in uterine arteries as compared to aortas (27.5 ± 10.0%). Even the highest concentration of 100 µM luteolin produced less than half relaxation (43.6 ± 8.6%) in aortas compared to uterine arteries. We then explored if luteolin-induced vasorelaxation in uterine arteries from pregnant rats was mediated by endothelial-dependent vasorelaxation pathways, including nitric oxide synthase (NOS), cyclooxygenase (COX), or potassium (K+) channels. Blocking these pathways with N(G)-Nitro-l-arginine methyl ester hydrochloride (L-NAME), indomethacin, or tetraethylammonium (TEA)/high potassium chloride (KCl), respectively, did not alter luteolin responses in uterine arteries from pregnant rats. These findings suggested that endothelial factors may not mediate luteolin-induced vasorelaxation in uterine arteries during pregnancy. Indeed, experiments where the endothelium was removed did not alter luteolin-induced vasorelaxation in uterine arteries during pregnancy. CONCLUSIONS Luteolin directly promotes vasorelaxation in the medial smooth muscle layer of uterine arteries during normal pregnancy.
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Affiliation(s)
- Weiwei Yang
- School of Biosciences, Weifang Medical University, Weifang 261053, China; Department of Physiology and Biophysics, The University of Mississippi Medical Center, Jackson, MS 39216, United States
| | - Qinghua Li
- School of Public Health and Management, Weifang Medical University, Weifang 261053, China; Department of Physiology and Biophysics, The University of Mississippi Medical Center, Jackson, MS 39216, United States
| | - Jeremy W Duncan
- Department of Physiology and Biophysics, The University of Mississippi Medical Center, Jackson, MS 39216, United States
| | - Bhavisha A Bakrania
- Department of Physiology and Biophysics, The University of Mississippi Medical Center, Jackson, MS 39216, United States
| | - Jessica L Bradshaw
- Department of Physiology and Biophysics, The University of Mississippi Medical Center, Jackson, MS 39216, United States
| | - Joey P Granger
- Department of Physiology and Biophysics, The University of Mississippi Medical Center, Jackson, MS 39216, United States
| | - Sarosh Rana
- Department of Obstetrics and Gynecology, The University of Chicago, Chicago, IL 60637, United States.
| | - Frank T Spradley
- Department of Physiology and Biophysics, The University of Mississippi Medical Center, Jackson, MS 39216, United States; Department of Surgery, The University of Mississippi Medical Center, Jackson, MS 39216, United States
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22
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Nahon KJ, Janssen LGM, Sardjoe Mishre ASD, Bilsen MP, van der Eijk JA, Botani K, Overduin LA, Ruiz JR, Burakiewicz J, Dzyubachyk O, Webb AG, Kan HE, Berbée JFP, van Klinken J, van Dijk KW, van Weeghel M, Vaz FM, Coskun T, Jazet IM, Kooijman S, Martinez‐Tellez B, Boon MR, Rensen PCN. The effect of mirabegron on energy expenditure and brown adipose tissue in healthy lean South Asian and Europid men. Diabetes Obes Metab 2020; 22:2032-2044. [PMID: 32558052 PMCID: PMC7771034 DOI: 10.1111/dom.14120] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 06/04/2020] [Accepted: 06/14/2020] [Indexed: 02/06/2023]
Abstract
AIM To compare the effects of cold exposure and the β3-adrenergic receptor agonist mirabegron on plasma lipids, energy expenditure and brown adipose tissue (BAT) activity in South Asians versus Europids. MATERIALS AND METHODS Ten lean Dutch South Asian (aged 18-30 years; body mass index [BMI] 18-25 kg/m2 ) and 10 age- and BMI-matched Europid men participated in a randomized, double-blinded, cross-over study consisting of three interventions: short-term (~ 2 hours) cold exposure, mirabegron (200 mg one dose p.o.) and placebo. Before and after each intervention, we performed lipidomic analysis in serum, assessed resting energy expenditure (REE) and skin temperature, and measured BAT fat fraction by magnetic resonance imaging. RESULTS In both ethnicities, cold exposure increased the levels of several serum lipid species, whereas mirabegron only increased free fatty acids. Cold exposure increased lipid oxidation in both ethnicities, while mirabegron increased lipid oxidation in Europids only. Cold exposure and mirabegron enhanced supraclavicular skin temperature in both ethnicities. Cold exposure decreased BAT fat fraction in both ethnicities. After the combination of data from both ethnicities, mirabegron decreased BAT fat fraction compared with placebo. CONCLUSIONS In South Asians and Europids, cold exposure and mirabegron induced beneficial metabolic effects. When combining both ethnicities, cold exposure and mirabegron increased REE and lipid oxidation, coinciding with a higher supraclavicular skin temperature and lower BAT fat fraction.
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Affiliation(s)
- Kimberly J. Nahon
- Department of Medicine, Division of EndocrinologyLeiden University Medical CenterLeidenthe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CenterLeidenthe Netherlands
| | - Laura G. M. Janssen
- Department of Medicine, Division of EndocrinologyLeiden University Medical CenterLeidenthe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CenterLeidenthe Netherlands
| | | | - Manu P. Bilsen
- Department of Medicine, Division of EndocrinologyLeiden University Medical CenterLeidenthe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CenterLeidenthe Netherlands
| | - Jari A. van der Eijk
- Department of RadiologyC.J. Gorter Center for High Field MRILeidenthe Netherlands
| | - Kani Botani
- Department of Medicine, Division of EndocrinologyLeiden University Medical CenterLeidenthe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CenterLeidenthe Netherlands
| | - Lisanne A. Overduin
- Department of Medicine, Division of EndocrinologyLeiden University Medical CenterLeidenthe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CenterLeidenthe Netherlands
| | - Jonatan R. Ruiz
- Department of Physical Education and Sport, Faculty of Sport SciencesPROFITH “PROmoting FITness and Health through physical activity” research group, Sport and Health University Research Institute (iMUDS), University of GranadaGranadaSpain
| | - Jedrzej Burakiewicz
- Department of RadiologyC.J. Gorter Center for High Field MRILeidenthe Netherlands
| | - Oleh Dzyubachyk
- Department of Radiology, Division of Image Processing (LKEB)Leiden University Medical CenterLeidenthe Netherlands
| | - Andrew G. Webb
- Department of RadiologyC.J. Gorter Center for High Field MRILeidenthe Netherlands
| | - Hermien E. Kan
- Department of RadiologyC.J. Gorter Center for High Field MRILeidenthe Netherlands
| | - Jimmy F. P. Berbée
- Department of Medicine, Division of EndocrinologyLeiden University Medical CenterLeidenthe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CenterLeidenthe Netherlands
| | - Jan‐Bert van Klinken
- Department of Human GeneticsLeiden University Medical CenterLeidenthe Netherlands
- Laboratory Genetic Metabolic DiseasesAmsterdam UMC, University of Amsterdam, Amsterdam Gastroenterology and Metabolism, Amsterdam Cardiovascular SciencesAmsterdamthe Netherlands
- Core Facility MetabolomicsAmsterdam UMC, University of AmsterdamAmsterdamthe Netherlands
| | - Ko Willems van Dijk
- Department of Medicine, Division of EndocrinologyLeiden University Medical CenterLeidenthe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CenterLeidenthe Netherlands
- Department of Human GeneticsLeiden University Medical CenterLeidenthe Netherlands
| | - Michel van Weeghel
- Laboratory Genetic Metabolic DiseasesAmsterdam UMC, University of Amsterdam, Amsterdam Gastroenterology and Metabolism, Amsterdam Cardiovascular SciencesAmsterdamthe Netherlands
- Core Facility MetabolomicsAmsterdam UMC, University of AmsterdamAmsterdamthe Netherlands
| | - Frédéric M. Vaz
- Laboratory Genetic Metabolic DiseasesAmsterdam UMC, University of Amsterdam, Amsterdam Gastroenterology and Metabolism, Amsterdam Cardiovascular SciencesAmsterdamthe Netherlands
- Core Facility MetabolomicsAmsterdam UMC, University of AmsterdamAmsterdamthe Netherlands
| | - Tamer Coskun
- Department of Diabetes/EndocrineLilly Research Laboratories, Lilly Corporate CenterIndianapolisIndianaUSA
| | - Ingrid M. Jazet
- Department of Medicine, Division of EndocrinologyLeiden University Medical CenterLeidenthe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CenterLeidenthe Netherlands
| | - Sander Kooijman
- Department of Medicine, Division of EndocrinologyLeiden University Medical CenterLeidenthe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CenterLeidenthe Netherlands
| | - Borja Martinez‐Tellez
- Department of Medicine, Division of EndocrinologyLeiden University Medical CenterLeidenthe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CenterLeidenthe Netherlands
- Department of Physical Education and Sport, Faculty of Sport SciencesPROFITH “PROmoting FITness and Health through physical activity” research group, Sport and Health University Research Institute (iMUDS), University of GranadaGranadaSpain
| | - Mariëtte R. Boon
- Department of Medicine, Division of EndocrinologyLeiden University Medical CenterLeidenthe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CenterLeidenthe Netherlands
| | - Patrick C. N. Rensen
- Department of Medicine, Division of EndocrinologyLeiden University Medical CenterLeidenthe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CenterLeidenthe Netherlands
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23
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Calvani M, Dabraio A, Subbiani A, Buonvicino D, De Gregorio V, Ciullini Mannurita S, Pini A, Nardini P, Favre C, Filippi L. β3-Adrenoceptors as Putative Regulator of Immune Tolerance in Cancer and Pregnancy. Front Immunol 2020; 11:2098. [PMID: 32983164 PMCID: PMC7492666 DOI: 10.3389/fimmu.2020.02098] [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: 03/15/2020] [Accepted: 08/03/2020] [Indexed: 12/14/2022] Open
Abstract
Understanding the mechanisms of immune tolerance is currently one of the most important challenges of scientific research. Pregnancy affects the immune system balance, leading the host to tolerate embryo alloantigens. Previous reports demonstrated that β-adrenergic receptor (β-AR) signaling promotes immune tolerance by modulation of NK and Treg, mainly through the activation of β2-ARs, but recently we have demonstrated that also β3-ARs induce an immune-tolerant phenotype in mice bearing melanoma. In this report, we demonstrate that β3-ARs support host immune tolerance in the maternal microenvironment by modulating the same immune cells populations as recently demonstrated in cancer. Considering that β3-ARs are modulated by oxygen levels, we hypothesize that hypoxia, through the upregulation of β3-AR, promotes the biological shift toward a tolerant immunophenotype and that this is the same trick that embryo and cancer use to create an aura of immune-tolerance in a competent immune environment. This study confirms the analogies between fetal development and tumor progression and suggests that the expression of β3-ARs represents one of the strategies to induce fetal and tumor immune tolerance.
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Affiliation(s)
- Maura Calvani
- Department of Paediatric Haematology-Oncology, A. Meyer University Children's Hospital, Florence, Italy
| | - Annalisa Dabraio
- Department of Paediatric Haematology-Oncology, A. Meyer University Children's Hospital, Florence, Italy.,Department of Health Sciences, University of Florence, Florence, Italy
| | - Angela Subbiani
- Department of Paediatric Haematology-Oncology, A. Meyer University Children's Hospital, Florence, Italy.,Department of Health Sciences, University of Florence, Florence, Italy
| | | | - Veronica De Gregorio
- Department of Paediatric Haematology-Oncology, A. Meyer University Children's Hospital, Florence, Italy.,Department of Health Sciences, University of Florence, Florence, Italy
| | - Sara Ciullini Mannurita
- Department of Paediatric Haematology-Oncology, A. Meyer University Children's Hospital, Florence, Italy
| | - Alessandro Pini
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Patrizia Nardini
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Claudio Favre
- Department of Paediatric Haematology-Oncology, A. Meyer University Children's Hospital, Florence, Italy
| | - Luca Filippi
- Neonatal Intensive Care Unit, Medical Surgical Feto-Neonatal Department, A. Meyer University Children's Hospital, Florence, Italy
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24
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Borovac JA, D'Amario D, Bozic J, Glavas D. Sympathetic nervous system activation and heart failure: Current state of evidence and the pathophysiology in the light of novel biomarkers. World J Cardiol 2020; 12:373-408. [PMID: 32879702 PMCID: PMC7439452 DOI: 10.4330/wjc.v12.i8.373] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 05/19/2020] [Accepted: 07/19/2020] [Indexed: 02/06/2023] Open
Abstract
Heart failure (HF) is a complex clinical syndrome characterized by the activation of at least several neurohumoral pathways that have a common role in maintaining cardiac output and adequate perfusion pressure of target organs and tissues. The sympathetic nervous system (SNS) is upregulated in HF as evident in dysfunctional baroreceptor and chemoreceptor reflexes, circulating and neuronal catecholamine spillover, attenuated parasympathetic response, and augmented sympathetic outflow to the heart, kidneys and skeletal muscles. When these sympathoexcitatory effects on the cardiovascular system are sustained chronically they initiate the vicious circle of HF progression and become associated with cardiomyocyte apoptosis, maladaptive ventricular and vascular remodeling, arrhythmogenesis, and poor prognosis in patients with HF. These detrimental effects of SNS activity on outcomes in HF warrant adequate diagnostic and treatment modalities. Therefore, this review summarizes basic physiological concepts about the interaction of SNS with the cardiovascular system and highlights key pathophysiological mechanisms of SNS derangement in HF. Finally, special emphasis in this review is placed on the integrative and up-to-date overview of diagnostic modalities such as SNS imaging methods and novel laboratory biomarkers that could aid in the assessment of the degree of SNS activation and provide reliable prognostic information among patients with HF.
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Affiliation(s)
- Josip Anđelo Borovac
- Department of Pathophysiology, University of Split School of Medicine, Split 21000, Croatia
- Working Group on Heart Failure of Croatian Cardiac Society, Zagreb 10000, Croatia
| | - Domenico D'Amario
- Department of Cardiovascular and Thoracic Sciences, IRCCS Fondazione Policlinico A. Gemelli, Universita Cattolica Sacro Cuore, Rome 00168, Italy
| | - Josko Bozic
- Department of Pathophysiology, University of Split School of Medicine, Split 21000, Croatia
| | - Duska Glavas
- Working Group on Heart Failure of Croatian Cardiac Society, Zagreb 10000, Croatia
- Clinic for Cardiovascular Diseases, University Hospital of Split, Split 21000, Croatia
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25
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Multicomponent Training Changes Blood Pressure and Redox Status in Older Women: Influence of β2 Adrenergic Receptor Haplotypes. J Aging Phys Act 2020; 28:242-249. [PMID: 31743087 DOI: 10.1123/japa.2019-0039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 06/20/2019] [Accepted: 07/13/2019] [Indexed: 11/18/2022]
Abstract
The β2 adrenergic receptor (β2-AR) plays an important role in vascular smooth muscle. However, the interaction between Arg16Gly and Gln27Glu β2-AR polymorphisms, and exercise training has not yet been established. This study evaluated the influence of these β2-AR polymorphisms on body composition, aerobic capacity, blood pressure, lipid profile, nitric oxide, and redox status at baseline and in response to an exercise program in women aged 50-79 years. Genotype and haplotypes were analyzed in association with the previously mentioned variables before and after the multicomponent training (12 weeks, 2 sessions/week, 90 min/session, and exercise intensity between 13 and 15 on the Borg scale). Individuals who carry β2-AR Arg16Arg/Gln27Gln genotypes presented more improvements in blood pressure, body composition, aerobic capacity, and redox status in response to a multicomponent training program compared with individuals who do not carry this haplotype. In some years, the genetic profile may be used to predict which exercise program can induce more health benefits for each person.
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26
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Garcia-Lunar I, Blanco I, Fernández-Friera L, Prat-Gonzàlez S, Jordà P, Sánchez J, Pereda D, Pujadas S, Rivas M, Solé-Gonzalez E, Vázquez J, Blázquez Z, García-Picart J, Caravaca P, Escalera N, Garcia-Pavia P, Delgado J, Segovia-Cubero J, Fuster V, Roig E, Barberá JA, Ibanez B, García-Álvarez A. Design of the β3-Adrenergic Agonist Treatment in Chronic Pulmonary Hypertension Secondary to Heart Failure Trial. JACC Basic Transl Sci 2020; 5:317-327. [PMID: 32368692 PMCID: PMC7188870 DOI: 10.1016/j.jacbts.2020.01.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 01/02/2020] [Accepted: 01/02/2020] [Indexed: 12/20/2022]
Abstract
CpcPH is a relatively common complication of chronic HF, is associated with poor survival, and has no specific pharmacological treatment. ß3AR stimulation has shown improvement in pulmonary hemodynamics and RV performance in a translational large animal model mimicking this condition. The SPHERE-HF trial is a Phase II randomized, double-blind clinical trial designed to evaluate the efficacy and safety of mirabegron (oral β3 AR agonist) in patients with CpcPH secondary to HF. The SPHERE-HF trial will include 80 patients treated with mirabegron or placebo for 16 weeks. The main outcome is the change in PVR. Secondary outcomes include changes in RV performance, clinical status, NT-proBNP levels, and additional pulmonary hemodynamic parameters.
Combined pre-and post-capillary hypertension (CpcPH) is a relatively common complication of heart failure (HF) associated with a poor prognosis. Currently, there is no specific therapy approved for this entity. Recently, treatment with beta-3 adrenergic receptor (β3AR) agonists was able to improve pulmonary hemodynamics and right ventricular (RV) performance in a translational, large animal model of chronic PH. The authors present the design of a phase II randomized clinical trial that tests the benefits of mirabegron (a clinically available β3AR agonist) in patients with CpcPH due to HF. The effect of β3AR treatment will be evaluated on pulmonary hemodynamics, as well as clinical, biochemical, and advanced cardiac imaging parameters. (Beta3 Agonist Treatment in Chronic Pulmonary Hypertension Secondary to Heart Failure [SPHERE-HF]; NCT02775539)
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Key Words
- CCT, cardiac computed tomography
- CMR, cardiac magnetic resonance
- CpcPH, combined pre- and post-capillary pulmonary hypertension
- ECG, electrocardiography
- HF, heart failure
- ITT, intention to treat
- IpcPH, isolated post-capillary pulmonary hypertension
- LHD, left heart disease
- LV, left ventricular
- LVEF, left ventricular ejection fraction
- NT-proBNP, N-terminal prohormone of brain natriuretic peptide
- NYHA, New York Heart Association
- PAP, pulmonary artery pressure
- PH, pulmonary hypertension
- PP, Per protocol
- PVR, pulmonary vascular resistance
- RV, right ventricle
- adrenoreceptors
- cGMP, cyclic guanosine monophosphate
- imaging
- pulmonary hypertension
- treatment
- β3AR, beta-3 adrenoreceptor
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Affiliation(s)
- Ines Garcia-Lunar
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain.,Hospital Universitario Quirónsalud Madrid, UEM, Madrid, Spain
| | - Isabel Blanco
- Department of Pulmonary Medicine, Hospital Clínic-IDIBAPS, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain
| | - Leticia Fernández-Friera
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain.,HM Hospitales-Centro Integral de Enfermedades Cardiovasculares HM-CIEC, Madrid, Spain
| | - Susanna Prat-Gonzàlez
- Institut Clinic Cardiovascular, IDIBAPS, Hospital Clínic, University of Barcelona, Barcelona, Spain
| | - Paloma Jordà
- Institut Clinic Cardiovascular, IDIBAPS, Hospital Clínic, University of Barcelona, Barcelona, Spain
| | - Javier Sánchez
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain.,Philips Healthcare Iberia, Madrid, Spain
| | - Daniel Pereda
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain.,Institut Clinic Cardiovascular, IDIBAPS, Hospital Clínic, University of Barcelona, Barcelona, Spain
| | - Sandra Pujadas
- Cardiology Department, Hospital Santa Creu i Sant Pau, IIb-Sant Pau, Universitat Autonoma de Barcelona, Barcelona, Spain
| | - Mercedes Rivas
- Cardiology Department, Hospital Santa Creu i Sant Pau, IIb-Sant Pau, Universitat Autonoma de Barcelona, Barcelona, Spain
| | | | - Jorge Vázquez
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain.,Cardiology Department, University Hospital Puerta de Hierro, University Autonoma de Madrid, Madrid, Spain
| | - Zorba Blázquez
- Cardiology Department, University Hospital 12 de Octubre, Universidad Complutense, Madrid, Spain
| | - Juan García-Picart
- Cardiology Department, Hospital Santa Creu i Sant Pau, IIb-Sant Pau, Universitat Autonoma de Barcelona, Barcelona, Spain
| | - Pedro Caravaca
- Cardiology Department, University Hospital 12 de Octubre, Universidad Complutense, Madrid, Spain
| | - Noemí Escalera
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| | - Pablo Garcia-Pavia
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain.,Cardiology Department, University Hospital Puerta de Hierro, University Autonoma de Madrid, Madrid, Spain.,University Francisco de Vitoria (UFV), Pozuelo de Alarcon, Spain
| | - Juan Delgado
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain.,Cardiology Department, University Hospital 12 de Octubre, Universidad Complutense, Madrid, Spain
| | - Javier Segovia-Cubero
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain.,Cardiology Department, University Hospital Puerta de Hierro, University Autonoma de Madrid, Madrid, Spain
| | - Valentín Fuster
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain.,Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Eulalia Roig
- Cardiology Department, Hospital Santa Creu i Sant Pau, IIb-Sant Pau, Universitat Autonoma de Barcelona, Barcelona, Spain
| | - Joan Albert Barberá
- Department of Pulmonary Medicine, Hospital Clínic-IDIBAPS, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain
| | - Borja Ibanez
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain.,IIS-Fundación Jiménez Díaz University Hospital, Madrid, Spain
| | - Ana García-Álvarez
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain.,Institut Clinic Cardiovascular, IDIBAPS, Hospital Clínic, University of Barcelona, Barcelona, Spain
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27
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Rodrigues JAL, Ferrari GD, Trapé ÁA, de Moraes VN, Gonçalves TCP, Tavares SS, Tjønna AE, de Souza HCD, Júnior CRB. β 2 adrenergic interaction and cardiac autonomic function: effects of aerobic training in overweight/obese individuals. Eur J Appl Physiol 2020; 120:613-624. [PMID: 31915906 DOI: 10.1007/s00421-020-04301-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 01/03/2020] [Indexed: 12/20/2022]
Abstract
PURPOSE To verify the influence of different volumes and intensities of aerobic exercise on cardiac autonomic function (CAF) through heart rate variability (HRV) analysis as well the influence of β2 adrenergic receptor (ADRB2) variants in overweight/obese individuals. METHODS 70 physically inactive adults were randomly allocated into the following 16-week training: 1-high-intensity interval training (HIIT) (n = 25, 1 × 4 min bout at 85-95%HR peak, 3×/week), 4-HIIT (n = 26, 4 × 4 min bouts at 85-95%HR peak, interspersed with 3 min of recovery at 50-70%HR peak, 3×/week), and moderate continuous training (MCT) (n = 19, 30 min at 60-70%HR peak, 5×/week). Before and after the exercise training, anthropometric, BP, cardiorespiratory fitness, and HRV measures were evaluated. R-R intervals recorded for 10 min in a supine position at pre- and post-intervention were used to analyze HRV in the plot-Poincare indexes (SD1, SD2), and frequency-domain (LF, HF, LF/HF). Full blood samples were used for genotyping. RESULTS 4-HIIT and MCT showed positive outcomes for almost all variables while 1-HIIT had a positive influence only on SBP and SD2 index. No associations were observed between isolated ADRB2 variants and changes in HRV. In the analysis of the interaction genotypes, all groups responded positively for the SD1 index of HRV and only the H1 (GG and CC) and H2 (GG and CG + GG) groups presented increases in the RMSSD index. Furthermore, there was an increase in the LF index only in the H3 (CC and AA + AG) and H4 (AA + AG and CG + GG) groups. CONCLUSIONS ADRB2 variants and aerobic exercise training are important interacting variables to improve autonomic function and other health variables outcomes in overweight or obese individuals.
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Affiliation(s)
- Jhennyfer Aline Lima Rodrigues
- School of Nursing of Ribeirão Preto, University of São Paulo (USP), Bandeirantes Avenue 3900, Ribeirão Preto, SP, 14040-907, Brazil.
- Laboratory of Physiology and Metabolism, School of Physical Education and Sport of Ribeirão Preto, University of São Paulo, Bandeirantes AvenueCEP 14.040-907, Ribeirão Preto, SP, 3900, Brazil.
| | - Gustavo Duarte Ferrari
- Department of Physics and Chemistry, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo (USP), Bandeirantes Avenue 3900, Ribeirão Preto, SP, 14040-903, Brazil
| | - Átila Alexandre Trapé
- School of Nursing of Ribeirão Preto, University of São Paulo (USP), Bandeirantes Avenue 3900, Ribeirão Preto, SP, 14040-907, Brazil
| | - Vitor Nolasco de Moraes
- Ribeirão Preto Medical School, Department of Medical Clinic, University of São Paulo (USP), Bandeirantes Avenue 3900, Ribeirão Preto, SP, 14040-907, Brazil
| | - Thiago Correa Porto Gonçalves
- Ribeirão Preto Medical School, Department of Medical Clinic, University of São Paulo (USP), Bandeirantes Avenue 3900, Ribeirão Preto, SP, 14040-907, Brazil
| | - Simone Sakagute Tavares
- Department of Physics and Chemistry, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo (USP), Bandeirantes Avenue 3900, Ribeirão Preto, SP, 14040-903, Brazil
| | - Arnt Erik Tjønna
- K.G. Jebsen Center of Exercise in Medicine at Department of Circulation and Medical Imaging, Faculty of Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Hugo Celso Dutra de Souza
- Ribeirão Preto Medical School, Exercise Physiology Laboratory, Department of Health Science, University of São Paulo (USP), Bandeirantes Avenue, 3900Vila Monte Alegre, Ribeirão Preto, SP, 14049-900, Brazil
| | - Carlos Roberto Bueno Júnior
- School of Nursing of Ribeirão Preto, University of São Paulo (USP), Bandeirantes Avenue 3900, Ribeirão Preto, SP, 14040-907, Brazil
- Ribeirão Preto Medical School, Department of Medical Clinic, University of São Paulo (USP), Bandeirantes Avenue 3900, Ribeirão Preto, SP, 14040-907, Brazil
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28
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Akdad M, Eddouks M. Cardiovascular Effects of Micromeria graeca (L.) Benth. ex Rchb in Normotensive and Hypertensive Rats. Endocr Metab Immune Disord Drug Targets 2019; 20:1253-1261. [PMID: 31822260 DOI: 10.2174/1871530319666191206163136] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Revised: 11/12/2019] [Accepted: 11/13/2019] [Indexed: 11/22/2022]
Abstract
AIMS The present study was performed in order to analyze the antihypertensive activity of Micromeria graeca (L.) Benth. ex Rchb. BACKGROUND Micromeria graeca (L.) Benth. ex Rchb is an aromatic and medicinal plant belonging to the Lamiaceae family. This herb is used to treat various pathologies such as cardiovascular disorders. Meanwhile, its pharmacological effects on the cardiovascular system have not been studied. OBJECTIVE The present study aimed to evaluate the effect of aqueous extract of aerial parts of Micromeria graeca (AEMG) on the cardiovascular system in normotensive and hypertensive rats. METHODS In this study, the cardiovascular effect of AEMG was evaluated using in vivo and in vitro investigations. In order to assess the acute effect of AEMG on the cardiovascular system, anesthetized L-NAME-hypertensive and normotensive rats received AEMG (100 mg/kg) orally and arterial blood pressure parameters were monitored during six hours. In the sub-chronic study, rats were orally treated for one week, followed by blood pressure assessment during one week of treatment. Blood pressure was measured using a tail-cuff and a computer-assisted monitoring device. In the second experiment, isolated rat aortic ring pre-contracted with Epinephrine (EP) or KCl was used to assess the vasorelaxant effect of AEMG. RESULTS Oral administration of AEMG (100 mg/kg) provoked a decrease of arterial blood pressure parameters in hypertensive rats. In addition, AEMG induced a vasorelaxant effect in thoracic aortic rings pre-contracted with EP (10 μM) or KCl (80 mM). This effect was attenuated in the presence of propranolol and methylene blue. While in the presence of glibenclamide, L-NAME, nifedipine or Indomethacin, the vasorelaxant effect was not affected. CONCLUSION This study showed that Micromeria graeca possesses a potent antihypertensive effect and relaxes the vascular smooth muscle through β-adrenergic and cGMP pathways.
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Affiliation(s)
- Mourad Akdad
- Department of Biology, Faculty of Sciences and Techniques Errachidia, Team of Endocrine Physiology and Pharmacology, Moulay Ismail University of Meknes, BP 509, Boutalamine, 52000, Errachidia, Morocco
| | - Mohamed Eddouks
- Department of Biology, Faculty of Sciences and Techniques Errachidia, Team of Endocrine Physiology and Pharmacology, Moulay Ismail University of Meknes, BP 509, Boutalamine, 52000, Errachidia, Morocco
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29
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Leo S, Gattuso A, Mazza R, Filice M, Cerra MC, Imbrogno S. Cardiac influence of the β3-adrenoceptor in the goldfish ( Carassius auratus): a protective role under hypoxia? ACTA ACUST UNITED AC 2019; 222:jeb.211334. [PMID: 31527180 DOI: 10.1242/jeb.211334] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 09/11/2019] [Indexed: 12/18/2022]
Abstract
The goldfish (Carassius auratus) exhibits a remarkable capacity to survive and remain active under prolonged and severe hypoxia, making it a good model for studying cardiac function when oxygen availability is a limiting factor. Under hypoxia, the goldfish heart increases its performance, representing a putative component of hypoxia tolerance; however, the underlying mechanisms have not yet been elucidated. Here, we aimed to investigate the role of β3-adrenoreceptors (ARs) in the mechanisms that modulate goldfish heart performance along with the impact of oxygen levels. By western blotting analysis, we found that the goldfish heart expresses β3-ARs, and this expression increases under hypoxia. The effects of β3-AR stimulation were analysed by using an ex vivo working heart preparation. Under normoxia, the β3-AR-selective agonist BRL37344 (10-12 to 10-7 mol l-1) elicited a concentration-dependent increase of contractility that was abolished by a specific β3-AR antagonist (SR59230A; 10-8 mol l-1), but not by α/β1/β2-AR inhibitors (phentolamine, nadolol and ICI118,551; 10-7 mol l-1). Under acute hypoxia, BRL37344 did not affect goldfish heart performance. However, SR59230A, but not phentolamine, nadolol or ICI118,551, abolished the time-dependent enhancement of contractility that characterizes the hypoxic goldfish heart. Under both normoxia and hypoxia, adenylate cyclase and cAMP were found to be involved in the β3-AR-dependent downstream transduction pathway. In summary, we show the presence of functional β3-ARs in the goldfish heart, whose activation modulates basal performance and contributes to a hypoxia-dependent increase of contractility.
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Affiliation(s)
- Serena Leo
- Dept of Biology, Ecology and Earth Sciences (BEST), University of Calabria, Arcavacata di Rende (CS), Italy
| | - Alfonsina Gattuso
- Dept of Biology, Ecology and Earth Sciences (BEST), University of Calabria, Arcavacata di Rende (CS), Italy
| | - Rosa Mazza
- Dept of Biology, Ecology and Earth Sciences (BEST), University of Calabria, Arcavacata di Rende (CS), Italy
| | - Mariacristina Filice
- Dept of Biology, Ecology and Earth Sciences (BEST), University of Calabria, Arcavacata di Rende (CS), Italy
| | - Maria Carmela Cerra
- Dept of Biology, Ecology and Earth Sciences (BEST), University of Calabria, Arcavacata di Rende (CS), Italy
| | - Sandra Imbrogno
- Dept of Biology, Ecology and Earth Sciences (BEST), University of Calabria, Arcavacata di Rende (CS), Italy
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30
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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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31
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van der Velden J, Tocchetti CG, Varricchi G, Bianco A, Sequeira V, Hilfiker-Kleiner D, Hamdani N, Leite-Moreira AF, Mayr M, Falcão-Pires I, Thum T, Dawson DK, Balligand JL, Heymans S. Metabolic changes in hypertrophic cardiomyopathies: scientific update from the Working Group of Myocardial Function of the European Society of Cardiology. Cardiovasc Res 2019; 114:1273-1280. [PMID: 29912308 PMCID: PMC6054261 DOI: 10.1093/cvr/cvy147] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Accepted: 06/13/2018] [Indexed: 12/20/2022] Open
Abstract
Disturbed metabolism as a consequence of obesity and diabetes may cause cardiac diseases (recently highlighted in the cardiovascular research spotlight issue on metabolic cardiomyopathies).1 In turn, the metabolism of the heart may also be disturbed in genetic and acquired forms of hypertrophic cardiac disease. Herein, we provide an overview of recent insights on metabolic changes in genetic hypertrophic cardiomyopathy and discuss several therapies, which may be explored to target disturbed metabolism and prevent onset of cardiac hypertrophy. This article is part of the Mini Review Series from the Varenna 2017 meeting of the Working Group of Myocardial Function of the European Society of Cardiology.
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Affiliation(s)
- Jolanda van der Velden
- Amsterdam UMC, Vrije Universiteit Amsterdam, Physiology, Amsterdam Cardiovascular Sciences, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands.,Netherlands Heart Institute, Utrecht, The Netherlands
| | - Carlo G Tocchetti
- Department of Translational Medical Sciences, Federico II University, Naples, NA, Italy
| | - Gilda Varricchi
- Department of Translational Medical Sciences, Federico II University, Naples, NA, Italy
| | - Anna Bianco
- Department of Translational Medical Sciences, Federico II University, Naples, NA, Italy.,Department of Cardiology, Maastricht University Medical Center & CARIM, Maastricht University, Maastricht, The Netherlands
| | - Vasco Sequeira
- Amsterdam UMC, Vrije Universiteit Amsterdam, Physiology, Amsterdam Cardiovascular Sciences, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
| | - Denise Hilfiker-Kleiner
- Molecular Cardiology, Department of Cardiology and Angiology, Medical School Hannover, Germany
| | - Nazha Hamdani
- Department of Systems Physiology, Ruhr University Bochum, Bochum, Germany
| | - Adelino F Leite-Moreira
- Department of Surgery and Physiology, Faculty of Medicine, Cardiovascular Research Centre, University of Porto, Porto, Portugal
| | - Manuel Mayr
- The James Black Centre & King's British Heart Foundation Centre, King's College, University of London, London, UK
| | - Ines Falcão-Pires
- Department of Surgery and Physiology, Faculty of Medicine, Cardiovascular Research Centre, University of Porto, Porto, Portugal
| | - Thomas Thum
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany.,National Heart and Lung Institute, Imperial College London, London, UK.,REBIRTH Excellence Cluster, Hannover Medical School, Hannover, Germany
| | - Dana K Dawson
- School of Medicine & Dentistry, University of Aberdeen, Aberdeen AB25 2ZD, UK
| | - Jean-Luc Balligand
- Pole of Pharmacology and Therapeutics, Institut de Recherche Experimentale et Clinique (IREC), and Clinique Universitaire Saint-Luc, Université catholique de Louvain, Brussels, Belgium
| | - Stephane Heymans
- Netherlands Heart Institute, Utrecht, The Netherlands.,Department of Cardiology, Maastricht University Medical Center & CARIM, Maastricht University, Maastricht, The Netherlands.,Department of Cardiovascular Sciences, Leuven University, Leuven, Belgium
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32
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Sikorsky AV, Welcome MO, Pereverzev VA, Mastorakis NE. Role of the Autonomic Nervous System and Vascular Endothelial Factors in the Development of Primary Arterial Hypotension in Paediatric Patients. Heart Lung Circ 2019; 28:1213-1217. [PMID: 30031661 DOI: 10.1016/j.hlc.2018.06.1047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Accepted: 06/24/2018] [Indexed: 10/28/2022]
Abstract
BACKGROUND There is a dearth and inconsistency of data on the role of the autonomic nervous system (ANS) in the development of arterial hypotension. Also, little is known about the involvement of endothelial factors in the development of this disease. The aim of the study was to investigate the role of the ANS and endothelial factors or vasoregulators in the development of primary arterial hypotension (PAH) in children. METHODS The cardiointervalography and clino-orthostatic test results of 113 children with PAH were compared with 88 healthy children of comparable age (7-11 years). Serum endothelial factors (nitric oxide and endothelins) of all children were measured. RESULTS The findings revealed that children with PAH had higher activity of the sympathetic (p<0.001) and parasympathetic (p<0.001) divisions of the ANS at the initial (resting) position of clino-orthostatic test. The activity of these divisions of the autonomic nervous system correlated with the activity of a cardiac pacemaker. The change of position from horizontal into vertical was accompanied by a rise only in sympathetic activity (p<0.001). However, there was a decline in the sympathetic nervous system (p<0.001) compared to the indices of the initial (resting) position registered in the tenth minute of the vertical position. The parasympathetic division of the ANS based on heart rate variability showed high activity in all positions of the clino-orthostatic test in the patients with PAH compared with healthy children. The activity of the parasympathetic nervous system was associated with increased synthesis of endothelial factors (nitric oxide and endothelins) in blood. CONCLUSIONS The inadequate response of the autonomic nervous system to the clino-orthostatic test in children with PAH is associated with disorders of both divisions of the autonomic nervous system as well as vascular endothelial factors.
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Affiliation(s)
| | - Menizibeya O Welcome
- Department of Physiology, College of Health Sciences, Nile University of Nigeria, FCT - Abuja, Nigeria; World Scientific and Engineering Academy and Society, Athens, Greece.
| | - Vladimir A Pereverzev
- Department of Normal Physiology, Belarusian State Medical University, Minsk, Belarus
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33
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Gresele P, Momi S, Guglielmini G. Nitric oxide-enhancing or -releasing agents as antithrombotic drugs. Biochem Pharmacol 2019; 166:300-312. [DOI: 10.1016/j.bcp.2019.05.030] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 05/31/2019] [Indexed: 12/16/2022]
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34
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Reply to So-Ryoung Lee, Byoung-Won Park, and Jae Heon Kim's Letter to the Editor re: Christian Gratzke, Rob van Maanen, Christopher Chapple, et al. Long-term Safety and Efficacy of Combined Mirabegron and Solifenacin Compared with Monotherapy in Patients with Overactive Bladder: A Randomised, Multicentre Phase 3 Study (SYNERGY II). Eur Urol 2018;74:501-9. Eur Urol 2019; 75:e59-e60. [PMID: 30773205 DOI: 10.1016/j.eururo.2018.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 10/01/2018] [Indexed: 11/23/2022]
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35
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Evlakhov VI, Poyasov IZ. [Adrenergic mechanisms of regulation of pulmonary microvessels tonicity and endothelial permeability]. ANGIOLOGIIA I SOSUDISTAIA KHIRURGIIA = ANGIOLOGY AND VASCULAR SURGERY 2019; 25:11-16. [PMID: 31503242 DOI: 10.33529/angi02019320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The review contains the data on adrenergic mechanisms of regulation of pulmonary microvessels tonicity and endothelial permeability. On smooth muscle cells of pulmonary vessels there are postsynaptic α1A-, α1B-, α1D- and α2A-, α2B-, α2C-adrenoreceptors whose activation by norepinephrine induces vasoconstriction. Excitation of β1- and β2-subtypes of adrenoreceptors leads to vasodilatation, Activation of α1-2- and β1-3-adrenoreceptors of the endothelium contributes to enhancement of nitric oxide synthesis. The resulting reaction of pulmonary microvessels in response to administration of catecholamines appears be determined by interaction of adrenergic mechanisms of regulation of tonicity of smooth muscle cells and synthesis of nitric oxide by the endothelium. Constrictor and dilator reactions of pulmonary venous vessels in response to activation of α- and β-adrenoreceptors, respectively, are more pronounced than in pulmonary arteries and make a significant contribution to the shifts of pulmonary vascular resistance. Excitation of α2- and β2-adrenoreceptors of endothelial cells of microvessels of the lungs contributes to a decrease in their permeability. In order to find out the role of adrenergic mechanisms in shifts of the capillary filtration coefficient in simulating various pathology of pulmonary circulation, it is necessary to carry out integral studies that would make it possible to evaluate alterations in macro- and microhaemodynamics of the lungs.
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Affiliation(s)
- V I Evlakhov
- Laboratory of Physiology of Visceral Systems named after K.M. Bykov, Institute of Experimental Medicine, Saint Petersburg, Russia
| | - I Z Poyasov
- Laboratory of Physiology of Visceral Systems named after K.M. Bykov, Institute of Experimental Medicine, Saint Petersburg, Russia
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36
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Adachi N, Hess DT, Kaku M, Ueda C, Numa C, Saito N. Differential S-palmitoylation of the human and rodent β 3-adrenergic receptors. J Biol Chem 2018; 294:2569-2578. [PMID: 30541923 DOI: 10.1074/jbc.ra118.004978] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 12/07/2018] [Indexed: 12/20/2022] Open
Abstract
With few reported exceptions, G protein-coupled receptors (GPCRs) are modified by Cys palmitoylation (S-palmitoylation). In multiple GPCRs, S-palmitoylation targets a canonical site within the C-terminal cytoplasmic tail adjacent to the C terminus of the seventh transmembrane domain, but modification of additional sites is exemplified by the β-adrenergic receptors (βARs). The β1AR is S-palmitoylated at a second, more distal site within the C-terminal tail, and the β2AR is modified at a second site within the third intracellular loop, neither of which is conserved in other βAR isoforms. The functional roles of S-palmitoylation of disparate sites are incompletely characterized for any GPCR family. Here, we describe S-palmitoylation of the β3AR. We compared mouse and human β3ARs and found that both were S-palmitoylated at the canonical site within the C-terminal tail, Cys-358 and Cys-361/363 in mouse and human β3ARs, respectively. Surprisingly, the human β3AR was S-palmitoylated at two additional sites, Cys-153 and Cys-292 within the second and third intracellular loops, respectively. Cys-153 is apparently unique to the human β3AR, and Cys-292 is conserved primarily in primates. Mutational substitution of C-tail Cys in human but not mouse β3ARs resulted in diminished ligand-induced cAMP production. Substitution of Cys-153, Cys-292, or Cys-361/363 within the human β3AR diminished membrane-receptor abundance, but only Cys-361/363 substitution diminished membrane-receptor half-life. Thus, S-palmitoylation of different sites differentially regulates the human β3AR, and differential S-palmitoylation distinguishes human and rodent β3ARs, potentially contributing to species-specific differences in the clinical efficacy of β3AR-directed pharmacological approaches to disease.
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Affiliation(s)
- Naoko Adachi
- From the Biosignal Research Center, Kobe University, Kobe 657-8501, Japan and
| | - Douglas T Hess
- Institute for Transformative Molecular Medicine and Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106
| | - Mika Kaku
- From the Biosignal Research Center, Kobe University, Kobe 657-8501, Japan and
| | - Chie Ueda
- From the Biosignal Research Center, Kobe University, Kobe 657-8501, Japan and
| | - Chisato Numa
- From the Biosignal Research Center, Kobe University, Kobe 657-8501, Japan and
| | - Naoaki Saito
- From the Biosignal Research Center, Kobe University, Kobe 657-8501, Japan and
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37
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Lee SR, Park BW, Kim JH. Re: Christian Gratzke, Rob van Maanen, Christopher Chapple, et al. Long-term Safety and Efficacy of Combined Mirabegron and Solifenacin Compared with Monotherapy in Patients with Overactive Bladder: A Randomised, Multicentre Phase 3 Study (SYNERGY II). Eur Urol 2018;74:501-9. Eur Urol 2018; 75:e57-e58. [PMID: 30327271 DOI: 10.1016/j.eururo.2018.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Accepted: 10/01/2018] [Indexed: 11/24/2022]
Affiliation(s)
- So-Ryoung Lee
- Department of Cardiology, Soonchunhyang University Seoul Hospital, Soonchunhyang University Medical College, Seoul, South Korea
| | - Byoung-Won Park
- Department of Cardiology, Soonchunhyang University Seoul Hospital, Soonchunhyang University Medical College, Seoul, South Korea
| | - Jae Heon Kim
- Department of Urology, Soonchunhyang University Seoul Hospital, Soonchunhyang University Medical College, Seoul, South Korea.
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38
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Pouleur AC, Anker S, Brito D, Brosteanu O, Hasenclever D, Casadei B, Edelmann F, Filippatos G, Gruson D, Ikonomidis I, Lhommel R, Mahmod M, Neubauer S, Persu A, Gerber BL, Piechnik S, Pieske B, Pieske-Kraigher E, Pinto F, Ponikowski P, Senni M, Trochu JN, Van Overstraeten N, Wachter R, Balligand JL. Rationale and design of a multicentre, randomized, placebo-controlled trial of mirabegron, a Beta3-adrenergic receptor agonist on left ventricular mass and diastolic function in patients with structural heart disease Beta3-left ventricular hypertrophy (Beta3-LVH). ESC Heart Fail 2018; 5:830-841. [PMID: 29932311 PMCID: PMC6165933 DOI: 10.1002/ehf2.12306] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 04/22/2018] [Indexed: 12/28/2022] Open
Abstract
Aims Progressive left ventricular (LV) remodelling with cardiac myocyte hypertrophy, myocardial fibrosis, and endothelial dysfunction plays a key role in the onset and progression of heart failure with preserved ejection fraction. The Beta3‐LVH trial will test the hypothesis that the β3 adrenergic receptor agonist mirabegron will improve LV hypertrophy and diastolic function in patients with hypertensive structural heart disease at high risk for developing heart failure with preserved ejection fraction. Methods and results Beta3‐LVH is a randomized, placebo‐controlled, double‐blind, two‐armed, multicentre, European, parallel group study. A total of 296 patients will be randomly assigned to receive either mirabegron 50 mg daily or placebo over 12 months. The main inclusion criterion is the presence of LV hypertrophy, that is, increased LV mass index (LVMi) or increased wall thickening by echocardiography. The co‐primary endpoints are a change in LVMi by cardiac magnetic resonance imaging and a change in LV diastolic function (assessed by the E/e′ ratio). Secondary endpoints include mirabegron's effects on cardiac fibrosis, left atrial volume index, maximal exercise capacity, and laboratory markers. Two substudies will evaluate mirabegron's effect on endothelial function by pulse amplitude tonometry and brown fat activity by positron emission tomography using 17F‐fluorodeoxyglucose. Morbidity and mortality as well as safety aspects will also be assessed. Conclusions Beta3‐LVH is the first large‐scale clinical trial to evaluate the effects of mirabegron on LVMi and diastolic function in patients with LVH. Beta3‐LVH will provide important information about the clinical course of this condition and may have significant impact on treatment strategies and future trials in these patients.
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Affiliation(s)
- Anne-Catherine Pouleur
- Cardiovascular Department, Cliniques Universitaires Saint-Luc, Université catholique de Louvain, Brussels, Belgium
| | - Stefan Anker
- Innovative Clinical Trials, Department of Cardiology and Pneumology, University Medical Center Göttingen (UMG), Göttingen, Germany.,Division of Cardiology and Metabolism-Heart Failure, Cachexia and Sarcopenia, Department of Cardiology, Berlin Brandenburg Center for Regenerative Therapies, Charité University of Medicine, Berlin, Germany
| | - Dulce Brito
- Department of Cardiology, CHLN, CCUL (Cardiovascular Centre), AIDFM, Hospital de Santa Maria, Universidade de Lisboa, Lisbon, Portugal
| | - Oana Brosteanu
- Clinical Trial Centre Leipzig-ZKS, Faculty of Medicine, Leipzig University, Leipzig, Germany
| | - Dirk Hasenclever
- Institute for Medical Informatics, Statistics & Epidemiology-IMISE, Faculty of Medicine, Leipzig University, Leipzig, Germany
| | - Barbara Casadei
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Frank Edelmann
- Department of Internal Medicine and Cardiology, Charité-Universitätsmedizin Berlin-Campus Virchow Klinikum, Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany
| | - Gerasimos Filippatos
- National and Kapodistrian University of Athens, School of Medicine and Department of Cardiology, Heart Failure Unit, Athens University Hospital Attikon, Athens, Greece
| | - Damien Gruson
- Clinical Biology Department, Cliniques Universitaires Saint-Luc, Université catholique de Louvain, Brussels, Belgium
| | - Ignatios Ikonomidis
- National and Kapodistrian University of Athens, School of Medicine and Department of Cardiology, Heart Failure Unit, Athens University Hospital Attikon, Athens, Greece
| | - Renaud Lhommel
- Nuclear Medicine Department, Cliniques Universitaires Saint-Luc, Université catholique de Louvain, Brussels, Belgium
| | - Masliza Mahmod
- Cardiovascular Imaging Core Laboratory, Oxford Centre for Clinical Magnetic Resonance Research (OCMR), Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Stefan Neubauer
- Cardiovascular Imaging Core Laboratory, Oxford Centre for Clinical Magnetic Resonance Research (OCMR), Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Alexandre Persu
- Cardiovascular Department, Cliniques Universitaires Saint-Luc, Université catholique de Louvain, Brussels, Belgium
| | - Bernhard L Gerber
- Cardiovascular Department, Cliniques Universitaires Saint-Luc, Université catholique de Louvain, Brussels, Belgium
| | - Stefan Piechnik
- Cardiovascular Imaging Core Laboratory, Oxford Centre for Clinical Magnetic Resonance Research (OCMR), Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Burkert Pieske
- Department of Internal Medicine and Cardiology, Charité-Universitätsmedizin Berlin-Campus Virchow Klinikum, Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany.,Department of Internal Medicine and Cardiology, German Heart Institute, Berlin, Germany
| | - Elisabeth Pieske-Kraigher
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Fausto Pinto
- Division of Cardiology and Metabolism-Heart Failure, Cachexia and Sarcopenia, Department of Cardiology, Berlin Brandenburg Center for Regenerative Therapies, Charité University of Medicine, Berlin, Germany
| | - Piotr Ponikowski
- Department of Heart Diseases, Wrocław Medical University, Wrocław, Poland.,Cardiology Department, Military Hospital, Wrocław, Poland
| | - Michele Senni
- Department Cardiovascular Medicine, Cardiology Division, Papa Giovanni XXIII Hospital, Bergamo, Italy
| | - Jean-Noël Trochu
- Institut du thorax, Centre Hospitalier Universitaire de Nantes, Nantes, France.,Medical School, University of Nantes, Nantes, France
| | - Nancy Van Overstraeten
- Cardiovascular Department, Cliniques Universitaires Saint-Luc, Université catholique de Louvain, Brussels, Belgium
| | - Rolf Wachter
- Clinic for Cardiology and Pneumology, University of Göttingen Medical Centre, Göttingen, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
| | - Jean-Luc Balligand
- Department of Medicine, Pole of Pharmacology and Therapeutics (FATH), Institut de Recherche Expérimentale et Clinique (IREC), Cliniques Universitaires Saint-Luc, Université catholique de Louvain, B1.53.09, 52 avenue Mounier, 1200, Brussels, Belgium
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Mirabegron, a β 3-adrenoceptor agonist reduced platelet aggregation through cyclic adenosine monophosphate accumulation. Eur J Pharmacol 2018; 829:79-84. [PMID: 29654782 DOI: 10.1016/j.ejphar.2018.04.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 04/05/2018] [Accepted: 04/09/2018] [Indexed: 11/22/2022]
Abstract
Mirabegron is a β3-adrenoceptor agonist and released on the marked for the treatment of overactive bladder. Because mirabegron is the only β3-adrenoceptor agonist available and substances that increase the levels of cyclic adenosine monophosphate (cAMP) inhibit platelet activity, we tested the hypothesis that mirabegron could have antiplatelet activity. Collagen- and thrombin induced platelet aggregation, thromboxane B2 (TXB2) and cyclic nucleotides quantification and calcium (Ca2+) mobilization were determined in the absence and presence of mirabegron in human washed platelets. Our results revealed that mirabegron (10-300 µM) produced significant inhibitions on platelet aggregation induced by collagen- or thrombin, accompanied by greater intracellular levels of cAMP. The β3-adrenoceptor antagonist L 748,337 (1 µM) and the adenylate cyclase inhibitor, SQ 22,536 (100 µM) reversed the inhibition induced by mirabegron in thrombin-stimulated platelets. The selective antagonists for β1-and β2-adrenoceptors, atenolol and ICI 117,551 (3 µM), respectively did not interfere on the inhibition induced by mirabegron. In Fluo-4 loaded platelets, mirabegron reduced the total and intracellular Ca2+ levels. Pre-incubation with mirabegron almost abolished the levels of TXB2. Mirabegron did not augment the intracellular levels of cyclic guanosine monophosphate. In conclusion, mirabegron inhibited human platelet aggregation through cAMP accumulation, thus suggesting that substances that activate β3-adrenoceptor could be beneficial as adjuvant antiplatelet therapy.
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Abstract
Nitric oxide (NO) signalling has pleiotropic roles in biology and a crucial function in cardiovascular homeostasis. Tremendous knowledge has been accumulated on the mechanisms of the nitric oxide synthase (NOS)-NO pathway, but how this highly reactive, free radical gas signals to specific targets for precise regulation of cardiovascular function remains the focus of much intense research. In this Review, we summarize the updated paradigms on NOS regulation, NO interaction with reactive oxidant species in specific subcellular compartments, and downstream effects of NO in target cardiovascular tissues, while emphasizing the latest developments of molecular tools and biomarkers to modulate and monitor NO production and bioavailability.
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Affiliation(s)
- Charlotte Farah
- Pole of Pharmacology and Therapeutics (FATH), Institut de Recherche Experimentale et Clinique (IREC) and Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, UCL-FATH Tour Vésale 5th Floor, 52 Avenue Mounier B1.53.09, 1200 Brussels, Belgium
| | - Lauriane Y M Michel
- Pole of Pharmacology and Therapeutics (FATH), Institut de Recherche Experimentale et Clinique (IREC) and Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, UCL-FATH Tour Vésale 5th Floor, 52 Avenue Mounier B1.53.09, 1200 Brussels, Belgium
| | - Jean-Luc Balligand
- Pole of Pharmacology and Therapeutics (FATH), Institut de Recherche Experimentale et Clinique (IREC) and Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, UCL-FATH Tour Vésale 5th Floor, 52 Avenue Mounier B1.53.09, 1200 Brussels, Belgium
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41
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Rodrigo GC, Denniff M. Time-of-day variation in vascular function. Exp Physiol 2018; 101:1030-4. [PMID: 27474265 DOI: 10.1113/ep085780] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Accepted: 06/06/2016] [Indexed: 01/20/2023]
Abstract
What is the topic of this review? This report looks at the role of endothelial nitric oxide signalling in the time-of-day variation in vasoconstriction of resistance vessels. What advances does it highlight? It highlights a time-of-day variation in contraction of mesenteric arteries, characterized by a reduced contractile response to either phenylephrine or high K(+) and increased relaxation in response to acetylcholine during the active period. This time-of-day variation in contraction results from a difference in endothelial nitric oxide synthase (eNOS) signalling that correlates with levels of eNOS expression, which peak during the active period and may have far reaching physiological consequences beyond regulation of blood pressure. There is a strong time-of-day variation in the vasoconstriction in response to sympathetic stimulation that may contribute to the time-of-day variation in blood pressure, which is characterized by a dip in blood pressure during the individual's rest period when sympathetic activity is low. Vasoconstriction is known to be regulated tightly by nitric oxide signalling from the endothelial cells, so we have looked at the effect of time-of-day on levels of endothelial nitric oxide synthase (eNOS) and vascular contractility. Mesenteric arteries isolated from the nocturnal rat exhibit a time-of-day variation in their contractile response to α1 -adrenoreceptor and muscarinic activation, which is characterized by a reduced vasoconstriction in response to phenylephrine and enhanced vasodilatation in response to acetylcholine during the rat's active period at night. An increase in eNOS signalling during the active period is responsible for this time-of-day difference in response to phenylephrine and acetylcholine and correlates with the large increase in eNOS expression (mRNA and protein) during the active period, possibly driven by the presence of a functioning peripheral circadian clock. This increase in eNOS signalling may function to limit the increase in peripheral resistance and therefore blood pressure during the increased sympathetic activity.
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Affiliation(s)
- G C Rodrigo
- Department of Cardiovascular Sciences, University of Leicester, Glenfield General Hospital, Leicester, UK
| | - M Denniff
- Department of Cardiovascular Sciences, University of Leicester, Glenfield General Hospital, Leicester, UK
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Abstract
Cardiac diseases, such as heart failure, remain leading causes of morbidity and mortality worldwide, with myocardial infarction as the most common etiology. HF is characterized by β-adrenergic receptor (βAR) dysregulation that is primarily due to the upregulation of G protein–coupled receptor kinases that leads to overdesensitization of β1 and β2ARs, and this clinically manifests as a loss of inotropic reserve. Interestingly, the “minor” βAR isoform, the β3AR, found in the heart, lacks G protein–coupled receptor kinases recognition sites, and is not subject to desensitization, and as a consequence of this, in human failing myocardium, the levels of this receptor remain unchanged or are even increased. In different preclinical studies, it has been shown that β3ARs can activate different signaling pathways that can protect the heart. The clinical relevance of this is also supported by the effects of β-blockers which are well known for their proangiogenic and cardioprotective effects, and data are emerging showing that these are mediated, at least in part, by enhancement of β3AR activity. In this regard, targeting of β3ARs could represent a novel potential strategy to improve cardiac metabolism, function, and remodeling.
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Hermida N, Michel L, Esfahani H, Dubois-Deruy E, Hammond J, Bouzin C, Markl A, Colin H, Steenbergen AV, De Meester C, Beauloye C, Horman S, Yin X, Mayr M, Balligand JL. Cardiac myocyte β3-adrenergic receptors prevent myocardial fibrosis by modulating oxidant stress-dependent paracrine signaling. Eur Heart J 2017; 39:888-898. [DOI: 10.1093/eurheartj/ehx366] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Accepted: 06/08/2017] [Indexed: 01/08/2023] Open
Affiliation(s)
- Nerea Hermida
- Department of Medicine, Pole of Pharmacology and Therapeutics (FATH), Institut de Recherche Expérimentale et Clinique (IREC), Cliniques Universitaires Saint-Luc, Université catholique de Louvain, 52 avenue Mounier, 1200 Brussels, Belgium
| | - Lauriane Michel
- Department of Medicine, Pole of Pharmacology and Therapeutics (FATH), Institut de Recherche Expérimentale et Clinique (IREC), Cliniques Universitaires Saint-Luc, Université catholique de Louvain, 52 avenue Mounier, 1200 Brussels, Belgium
| | - Hrag Esfahani
- Department of Medicine, Pole of Pharmacology and Therapeutics (FATH), Institut de Recherche Expérimentale et Clinique (IREC), Cliniques Universitaires Saint-Luc, Université catholique de Louvain, 52 avenue Mounier, 1200 Brussels, Belgium
| | - Emilie Dubois-Deruy
- Department of Medicine, Pole of Pharmacology and Therapeutics (FATH), Institut de Recherche Expérimentale et Clinique (IREC), Cliniques Universitaires Saint-Luc, Université catholique de Louvain, 52 avenue Mounier, 1200 Brussels, Belgium
| | - Joanna Hammond
- Department of Medicine, Pole of Pharmacology and Therapeutics (FATH), Institut de Recherche Expérimentale et Clinique (IREC), Cliniques Universitaires Saint-Luc, Université catholique de Louvain, 52 avenue Mounier, 1200 Brussels, Belgium
| | - Caroline Bouzin
- Department of Medicine, Pole of Pharmacology and Therapeutics (FATH), Institut de Recherche Expérimentale et Clinique (IREC), Cliniques Universitaires Saint-Luc, Université catholique de Louvain, 52 avenue Mounier, 1200 Brussels, Belgium
| | - Andreas Markl
- Department of Medicine, Pole of Pharmacology and Therapeutics (FATH), Institut de Recherche Expérimentale et Clinique (IREC), Cliniques Universitaires Saint-Luc, Université catholique de Louvain, 52 avenue Mounier, 1200 Brussels, Belgium
| | - Henri Colin
- Department of Medicine, Pole of Pharmacology and Therapeutics (FATH), Institut de Recherche Expérimentale et Clinique (IREC), Cliniques Universitaires Saint-Luc, Université catholique de Louvain, 52 avenue Mounier, 1200 Brussels, Belgium
| | - Anne Van Steenbergen
- Division of Cardiology, Pole of Cardiovascular Research, Institut de Recherche Expérimentale et Clinique (IREC), Cliniques Universitaires Saint-Luc, Université catholique de Louvain, 10 Avenue Hippocrate, 1200 Brussels, Belgium
| | - Christophe De Meester
- Division of Cardiology, Pole of Cardiovascular Research, Institut de Recherche Expérimentale et Clinique (IREC), Cliniques Universitaires Saint-Luc, Université catholique de Louvain, 10 Avenue Hippocrate, 1200 Brussels, Belgium
| | - Christophe Beauloye
- Division of Cardiology, Pole of Cardiovascular Research, Institut de Recherche Expérimentale et Clinique (IREC), Cliniques Universitaires Saint-Luc, Université catholique de Louvain, 10 Avenue Hippocrate, 1200 Brussels, Belgium
| | - Sandrine Horman
- Division of Cardiology, Pole of Cardiovascular Research, Institut de Recherche Expérimentale et Clinique (IREC), Cliniques Universitaires Saint-Luc, Université catholique de Louvain, 10 Avenue Hippocrate, 1200 Brussels, Belgium
| | - Xiaoke Yin
- King’s British Heart Foundation Center, King’s College, 125 Coldharbour Lane, SE5 9NU, London, UK
| | - Manuel Mayr
- King’s British Heart Foundation Center, King’s College, 125 Coldharbour Lane, SE5 9NU, London, UK
| | - Jean-Luc Balligand
- Department of Medicine, Pole of Pharmacology and Therapeutics (FATH), Institut de Recherche Expérimentale et Clinique (IREC), Cliniques Universitaires Saint-Luc, Université catholique de Louvain, 52 avenue Mounier, 1200 Brussels, Belgium
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44
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Balligand JL, Michel LY. Letter by Balligand and Michel Regarding Article, “Adrenergic Receptors in Individual Ventricular Myocytes: the Beta-1 and Alpha-1B Are in All Cells, the Alpha-1A Is in a Subpopulation, and the Beta-2 and Beta-3 Are Mostly Absent”. Circ Res 2017; 120:e54-e55. [DOI: 10.1161/circresaha.117.310942] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jean-Luc Balligand
- Pole of Pharmacology and Therapeutics (FATH), Institut de Recherche Expérimentale et Clinique (IREC) and Cliniques Universitaires Saint-Luc, Université catholique de Louvain, Brussels, Belgium
| | - Lauriane Y.M. Michel
- Pole of Pharmacology and Therapeutics (FATH), Institut de Recherche Expérimentale et Clinique (IREC) and Cliniques Universitaires Saint-Luc, Université catholique de Louvain, Brussels, Belgium
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45
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Abstract
The heart is uniquely responsible for providing its own blood supply through the coronary circulation. Regulation of coronary blood flow is quite complex and, after over 100 years of dedicated research, is understood to be dictated through multiple mechanisms that include extravascular compressive forces (tissue pressure), coronary perfusion pressure, myogenic, local metabolic, endothelial as well as neural and hormonal influences. While each of these determinants can have profound influence over myocardial perfusion, largely through effects on end-effector ion channels, these mechanisms collectively modulate coronary vascular resistance and act to ensure that the myocardial requirements for oxygen and substrates are adequately provided by the coronary circulation. The purpose of this series of Comprehensive Physiology is to highlight current knowledge regarding the physiologic regulation of coronary blood flow, with emphasis on functional anatomy and the interplay between the physical and biological determinants of myocardial oxygen delivery. © 2017 American Physiological Society. Compr Physiol 7:321-382, 2017.
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Affiliation(s)
- Adam G Goodwill
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, IN
| | - Gregory M Dick
- California Medical Innovations Institute, 872 Towne Center Drive, Pomona, CA
| | - Alexander M Kiel
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, IN
- Weldon School of Biomedical Engineering, Purdue University, 206 S Martin Jischke Drive, Lafayette, IN
| | - Johnathan D Tune
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, IN
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46
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MRI Assessment of Cardiomyopathy Induced by β1-Adrenoreceptor Autoantibodies and Protection Through β3-Adrenoreceptor Overexpression. Sci Rep 2017; 7:43951. [PMID: 28276515 PMCID: PMC5343428 DOI: 10.1038/srep43951] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 02/01/2017] [Indexed: 11/29/2022] Open
Abstract
The cardiopathogenic role of autoantibodies (aabs) directed against β1-adrenoreceptors (β1-AR) is well established. In mouse models, they cause progressive dilated cardiomyopathy (DCM) whose characterization with echocardiography requires prolonged protocols with numerous animals, complicating the evaluation of new treatments. Here, we report on the characterization of β1-aabs-induced DCM in mice using 11.7T MRI. C57BL/6J mice (n = 10 per group) were immunized against the β1-AR and left ventricular (LV) systolic function was assessed at 10, 18 and 27 weeks. Increase in LV mass/tibial length ratio was detected as the first modification at 10 weeks together with dilation of cavities, thereby outperforming echocardiography. Significant impairment in diastolic index was also observed in immunized animals before the onset of systolic dysfunction. Morphometric and histological measurements confirmed these observations. The same protocol performed on β3-AR-overexpressing mice and wild-type littermates (n = 8–12 per group) showed that transgenic animals were protected with reduced LV/TL ratio compared to wild-type animals and maintenance of the diastolic index. This study demonstrates that MRI allows a precocious detection of the subtle myocardial dysfunction induced by β1-aabs and that β3-AR stimulation blunts the development of β1-aabs-induced DCM, thereby paving the way for the use of β3AR-stimulating drugs to treat this autoimmune cardiomyopathy.
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47
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Balligand JL. Cardiac beta3-adrenergic receptors in the clinical arena: the end of the beginning. Eur J Heart Fail 2017; 19:576-578. [DOI: 10.1002/ejhf.784] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 01/09/2017] [Indexed: 11/08/2022] Open
Affiliation(s)
- Jean-Luc Balligand
- Institut de Recherche Experimentale et Clinique, Pole of Pharmacology and Therapeutics and Cliniques Universitaires Saint-Luc, Université catholique de Louvain; Brussels Belgium
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48
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Abstract
While crucial for the acute physiologic response to stress, the adrenergic system may become maladaptive upon prolonged stimulation in the course of development of heart failure. This has been the basis for the development of beta-blocking therapies, targeting mainly beta1-2 adrenoreceptors (B1-2AR). The third isotype, B3AR, was more recently identified in cardiac myocytes and endothelial cells from human (and many other animal species), where its distinctive coupling to nitric oxide and antioxidant pathways suggested potential protective properties that were unexploited so far. The observation of beneficial effects of B3AR expression/activation on myocardial remodeling and the availability of specific agonists for clinical use now open the way for directly testing the hypothesis in heart failure patients. We will briefly review the specificities of B3AR signaling in the context of the cardiovascular adrenergic system, the evidence supporting its beneficial effects and outline an ongoing clinical trial using the B3AR agonist, mirabegron in patients with/at risk of developing heart failure with preserved ejection fraction (HFpEF).
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Affiliation(s)
- Lauriane Y M Michel
- Pole of Pharmacology and Therapeutics (FATH), Institut de Recherche Experimentale et Clinique (IREC), Université Catholique de Louvain, B1.53.09, 52 Ave. Mounier, 1200, Brussels, Belgium
| | - Jean-Luc Balligand
- Pole of Pharmacology and Therapeutics (FATH), Institut de Recherche Experimentale et Clinique (IREC), Université Catholique de Louvain, B1.53.09, 52 Ave. Mounier, 1200, Brussels, Belgium.
- Department of Medicine, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, 10 Ave. Hippocrate, 1200, Brussels, Belgium.
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49
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Vargas Pelaez AF, Gao Z, Ahmad TA, Leuenberger UA, Proctor DN, Maman SR, Muller MD. Effect of adrenergic agonists on coronary blood flow: a laboratory study in healthy volunteers. Physiol Rep 2016; 4:4/10/e12806. [PMID: 27225628 PMCID: PMC4886172 DOI: 10.14814/phy2.12806] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Accepted: 04/30/2016] [Indexed: 12/20/2022] Open
Abstract
Myocardial oxygen supply and demand mismatch is fundamental to the pathophysiology of ischemia and infarction. The sympathetic nervous system, through α‐adrenergic receptors and β‐adrenergic receptors, influences both myocardial oxygen supply and demand. In animal models, mechanistic studies have established that adrenergic receptors contribute to coronary vascular tone. The purpose of this laboratory study was to noninvasively quantify coronary responses to adrenergic receptor stimulation in humans. Fourteen healthy volunteers (11 men and 3 women) performed isometric handgrip exercise to fatigue followed by intravenous infusion of isoproterenol. A subset of individuals also received infusions of phenylephrine (n = 6), terbutaline (n = 10), and epinephrine (n = 4); all dosages were based on fat‐free mass and were infused slowly to achieve steady‐state. The left anterior descending coronary artery was visualized using Doppler echocardiography. Beat‐by‐beat heart rate (HR), blood pressure (BP), peak diastolic coronary velocity (CBVpeak), and coronary velocity time integral were calculated. Data are presented as M ± SD. Isometric handgrip elicited significant increases in BP, HR, and CBVpeak (from 23.3 ± 5.3 to 34.5 ± 9.9 cm/sec). Isoproterenol raised HR and CBVpeak (from 22.6 ± 4.8 to 43.9 ± 12.4 cm/sec). Terbutaline and epinephrine evoked coronary hyperemia whereas phenylephrine did not significantly alter CBVpeak. Different indices of coronary hyperemia (changes in CBVpeak and velocity time integral) were significantly correlated (R = 0.803). The current data indicate that coronary hyperemia occurs in healthy humans in response to isometric handgrip exercise and low‐dose, steady‐state infusions of isoproterenol, terbutaline, and epinephrine. The contribution of β1 versus β2 receptors to coronary hyperemia remains to be determined. In this echocardiographic study, we demonstrate that coronary blood flow increases when β‐adrenergic receptors are stimulated (i.e., during exercise and different intravenous infusions). Our infusion paradigms and beat‐by‐beat imaging methodologies can be used in future studies to evaluate age‐, sex‐, and disease‐ differences in adrenergic control of coronary blood flow.
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Affiliation(s)
- Alvaro F Vargas Pelaez
- Penn State Heart and Vascular Institute, Penn State University College of Medicine, Hershey, Pennsylvania
| | - Zhaohui Gao
- Penn State Heart and Vascular Institute, Penn State University College of Medicine, Hershey, Pennsylvania
| | - Tariq A Ahmad
- Division of General Internal Medicine, Penn State University College of Medicine, Hershey, Pennsylvania
| | - Urs A Leuenberger
- Penn State Heart and Vascular Institute, Penn State University College of Medicine, Hershey, Pennsylvania
| | - David N Proctor
- Department of Kinesiology, Noll Laboratory, The Pennsylvania State University, University Park, Pennsylvania
| | - Stephan R Maman
- Penn State Heart and Vascular Institute, Penn State University College of Medicine, Hershey, Pennsylvania
| | - Matthew D Muller
- Penn State Heart and Vascular Institute, Penn State University College of Medicine, Hershey, Pennsylvania
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50
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Forte M, Conti V, Damato A, Ambrosio M, Puca AA, Sciarretta S, Frati G, Vecchione C, Carrizzo A. Targeting Nitric Oxide with Natural Derived Compounds as a Therapeutic Strategy in Vascular Diseases. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:7364138. [PMID: 27651855 PMCID: PMC5019908 DOI: 10.1155/2016/7364138] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 07/30/2016] [Accepted: 08/01/2016] [Indexed: 12/20/2022]
Abstract
Within the family of endogenous gasotransmitters, nitric oxide (NO) is the smallest gaseous intercellular messenger involved in the modulation of several processes, such as blood flow and platelet aggregation control, essential to maintain vascular homeostasis. NO is produced by nitric oxide synthases (NOS) and its effects are mediated by cGMP-dependent or cGMP-independent mechanisms. Growing evidence suggests a crosstalk between the NO signaling and the occurrence of oxidative stress in the onset and progression of vascular diseases, such as hypertension, heart failure, ischemia, and stroke. For these reasons, NO is considered as an emerging molecular target for developing therapeutic strategies for cardio- and cerebrovascular pathologies. Several natural derived compounds, such as polyphenols, are now proposed as modulators of NO-mediated pathways. The aim of this review is to highlight the experimental evidence on the involvement of nitric oxide in vascular homeostasis focusing on the therapeutic potential of targeting NO with some natural compounds in patients with vascular diseases.
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Affiliation(s)
- Maurizio Forte
- IRCCS Neuromed, Vascular Physiopathology Unit, Pozzilli, Italy
| | - Valeria Conti
- Università degli Studi di Salerno, Medicine, Surgery and Dentistry, Baronissi, Italy
| | - Antonio Damato
- IRCCS Neuromed, Vascular Physiopathology Unit, Pozzilli, Italy
| | | | - Annibale A. Puca
- Università degli Studi di Salerno, Medicine, Surgery and Dentistry, Baronissi, Italy
- IRCCS Multimedica, Milan, Italy
| | - Sebastiano Sciarretta
- IRCCS Neuromed, Vascular Physiopathology Unit, Pozzilli, Italy
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Rome, Italy
| | - Giacomo Frati
- IRCCS Neuromed, Vascular Physiopathology Unit, Pozzilli, Italy
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Rome, Italy
| | - Carmine Vecchione
- IRCCS Neuromed, Vascular Physiopathology Unit, Pozzilli, Italy
- Università degli Studi di Salerno, Medicine, Surgery and Dentistry, Baronissi, Italy
| | - Albino Carrizzo
- IRCCS Neuromed, Vascular Physiopathology Unit, Pozzilli, Italy
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