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Zhang Y, Chen S, Tian Y, Fu X. Host factors of SARS-CoV-2 in infection, pathogenesis, and long-term effects. Front Cell Infect Microbiol 2024; 14:1407261. [PMID: 38846354 PMCID: PMC11155306 DOI: 10.3389/fcimb.2024.1407261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Accepted: 05/08/2024] [Indexed: 06/09/2024] Open
Abstract
SARS-CoV-2 is the causative virus of the devastating COVID-19 pandemic that results in an unparalleled global health and economic crisis. Despite unprecedented scientific efforts and therapeutic interventions, the fight against COVID-19 continues as the rapid emergence of different SARS-CoV-2 variants of concern and the increasing challenge of long COVID-19, raising a vast demand to understand the pathomechanisms of COVID-19 and its long-term sequelae and develop therapeutic strategies beyond the virus per se. Notably, in addition to the virus itself, the replication cycle of SARS-CoV-2 and clinical severity of COVID-19 is also governed by host factors. In this review, we therefore comprehensively overview the replication cycle and pathogenesis of SARS-CoV-2 from the perspective of host factors and host-virus interactions. We sequentially outline the pathological implications of molecular interactions between host factors and SARS-CoV-2 in multi-organ and multi-system long COVID-19, and summarize current therapeutic strategies and agents targeting host factors for treating these diseases. This knowledge would be key for the identification of new pathophysiological aspects and mechanisms, and the development of actionable therapeutic targets and strategies for tackling COVID-19 and its sequelae.
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Affiliation(s)
| | | | - Yan Tian
- Department of Endocrinology and Metabolism, Department of Biotherapy, State Key Laboratory of Biotherapy and Cancer Center, West China Medical School, West China Hospital and Cancer Center, Sichuan University and Collaborative Innovation Center of Biotherapy, Sichuan, Chengdu, China
| | - Xianghui Fu
- Department of Endocrinology and Metabolism, Department of Biotherapy, State Key Laboratory of Biotherapy and Cancer Center, West China Medical School, West China Hospital and Cancer Center, Sichuan University and Collaborative Innovation Center of Biotherapy, Sichuan, Chengdu, China
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2
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Korde A, Haslip M, Pednekar P, Khan A, Chioccioli M, Mehta S, Lopez-Giraldez F, Bermejo S, Rojas M, Dela Cruz C, Matthay MA, Pober JS, Pierce RW, Takyar SS. MicroRNA-1 protects the endothelium in acute lung injury. JCI Insight 2023; 8:e164816. [PMID: 37737266 PMCID: PMC10561733 DOI: 10.1172/jci.insight.164816] [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: 08/31/2022] [Accepted: 08/10/2023] [Indexed: 09/23/2023] Open
Abstract
Acute lung injury (ALI) and its most severe form, acute respiratory distress syndrome (ARDS), cause severe endothelial dysfunction in the lung, and vascular endothelial growth factor (VEGF) is elevated in ARDS. We found that the levels of a VEGF-regulated microRNA, microRNA-1 (miR-1), were reduced in the lung endothelium after acute injury. Pulmonary endothelial cell-specific (EC-specific) overexpression of miR-1 protected the lung against cell death and barrier dysfunction in both murine and human models and increased the survival of mice after pneumonia-induced ALI. miR-1 had an intrinsic protective effect in pulmonary and other types of ECs; it inhibited apoptosis and necroptosis pathways and decreased capillary leak by protecting adherens and tight junctions. Comparative gene expression analysis and RISC recruitment assays identified miR-1 targets in the context of injury, including phosphodiesterase 5A (PDE5A), angiopoietin-2 (ANGPT2), CNKSR family member 3 (CNKSR3), and TNF-α-induced protein 2 (TNFAIP2). We validated miR-1-mediated regulation of ANGPT2 in both mouse and human ECs and found that in a 119-patient pneumonia cohort, miR-1 correlated inversely with ANGPT2. These findings illustrate a previously unknown role of miR-1 as a cytoprotective orchestrator of endothelial responses to acute injury with prognostic and therapeutic potential.
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Affiliation(s)
- Asawari Korde
- Department of Internal Medicine, Section of Pulmonary, Critical Care and Sleep Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Maria Haslip
- Department of Internal Medicine, Section of Pulmonary, Critical Care and Sleep Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Prachi Pednekar
- Department of Medicine, Yale New Haven Hospital, New Haven, Connecticut, USA
| | | | - Maurizio Chioccioli
- Department of Internal Medicine, Section of Pulmonary, Critical Care and Sleep Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Sameet Mehta
- Department of Genetics, Yale University School Medicine, New Haven, Connecticut, USA
| | | | - Santos Bermejo
- Department of Internal Medicine, Section of Pulmonary, Critical Care and Sleep Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Mauricio Rojas
- Division of Pulmonary, Critical Care and Sleep Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Charles Dela Cruz
- Department of Internal Medicine, Section of Pulmonary, Critical Care and Sleep Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Michael A. Matthay
- Cardiovascular Research Institute, Department of Medicine and Anesthesiology, UCSF, San Francisco, California, USA
| | | | | | - Shervin S. Takyar
- Department of Internal Medicine, Section of Pulmonary, Critical Care and Sleep Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
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3
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Conte JG, Tellechea ML, Park B, Ballerini MG, Jaita G, Peluffo MC. Interaction between epidermal growth factor receptor and C-C motif chemokine receptor 2 in the ovulatory cascade. Front Cell Dev Biol 2023; 11:1161813. [PMID: 37082622 PMCID: PMC10110862 DOI: 10.3389/fcell.2023.1161813] [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: 02/08/2023] [Accepted: 03/27/2023] [Indexed: 04/07/2023] Open
Abstract
The epidermal growth factor receptor (EGFR) signaling pathway is one of the main pathways responsible for propagating the luteinizing hormone (LH) signal throughout the cumulus cells and the oocyte. Recently, we have proposed the C-C motif chemokine receptor 2 (CCR2) and its main ligand (monocyte chemoattractant protein-1, MCP1) as novel mediators of the ovulatory cascade. Our previous results demonstrate that the gonadotropins (GNT), amphiregulin (AREG), and prostaglandin E2 (PGE2) stimulation of periovulatory gene mRNA levels occurs, at least in part, through the CCR2/MCP1 pathway, proposing the CCR2 receptor as a novel mediator of the ovulatory cascade in a feline model. For that purpose, feline cumulus-oocyte complexes (COCs) were cultured in the presence or absence of an EGFR inhibitor, recombinant chemokine MCP1, and gonadotropins [as an inducer of cumulus-oocyte expansion (C-OE), and oocyte maturation] to further assess the mRNA expression of periovulatory key genes, C-OE, oocyte nuclear maturation, and steroid hormone production. We observed that MCP1 was able to revert the inhibition of AREG mRNA expression by an EGFR inhibitor within the feline COC. In accordance, the confocal analysis showed that the GNT-stimulated hyaluronic acid (HA) synthesis, blocked by the EGFR inhibitor, was recovered by the addition of recombinant MCP1 in the C-OE culture media. Also, MCP1 was able to revert the inhibition of progesterone (P4) production by EGFR inhibitor in the C-OE culture media. Regarding oocyte nuclear maturation, recombinant MCP1 could also revert the inhibition triggered by the EGFR inhibitor, leading to a recovery in the percentage of metaphase II (MII)-stage oocytes. In conclusion, our results confirm the chemokine receptor CCR2 as a novel intermediate in the ovulatory cascade and demonstrate that the EGFR/AREG and the CCR2/MCP1 signaling pathways play critical roles in regulating feline C-OE and oocyte nuclear maturation, with CCR2/MCP1 signaling pathway being downstream EGFR/AREG pathway within the ovulatory cascade.
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Affiliation(s)
- J. G. Conte
- Centro de Investigaciones Endocrinológicas “Dr. César Bergadá” (CEDIE), CONICET—FEI—División de Endocrinología, Hospital de Niños Ricardo Gutiérrez, Buenos Aires, Argentina
- Instituto de Investigaciones Biomédicas (INBIOMED), Facultad de Medicina CONICET- Universidad de Buenos Aires, Buenos Aires, Argentina
| | - M. L. Tellechea
- Centro de Investigaciones Endocrinológicas “Dr. César Bergadá” (CEDIE), CONICET—FEI—División de Endocrinología, Hospital de Niños Ricardo Gutiérrez, Buenos Aires, Argentina
| | - B. Park
- Biostatistics Shared Resource, Knight Cancer Institute, Oregon Health and Science University, Portland, OR, United States
| | - M. G. Ballerini
- Centro de Investigaciones Endocrinológicas “Dr. César Bergadá” (CEDIE), CONICET—FEI—División de Endocrinología, Hospital de Niños Ricardo Gutiérrez, Buenos Aires, Argentina
| | - G. Jaita
- Instituto de Investigaciones Biomédicas (INBIOMED), Facultad de Medicina CONICET- Universidad de Buenos Aires, Buenos Aires, Argentina
- Departamento de Biología Celular e Histología, Facultad de Medicina-Universidad de Buenos Aires Buenos, Buenos Aires, Argentina
| | - M. C. Peluffo
- Centro de Investigaciones Endocrinológicas “Dr. César Bergadá” (CEDIE), CONICET—FEI—División de Endocrinología, Hospital de Niños Ricardo Gutiérrez, Buenos Aires, Argentina
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4
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Lanahan SM, Wymann MP, Lucas CL. The role of PI3Kγ in the immune system: new insights and translational implications. Nat Rev Immunol 2022; 22:687-700. [PMID: 35322259 PMCID: PMC9922156 DOI: 10.1038/s41577-022-00701-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/21/2022] [Indexed: 12/27/2022]
Abstract
Over the past two decades, new insights have positioned phosphoinositide 3-kinase-γ (PI3Kγ) as a context-dependent modulator of immunity and inflammation. Recent advances in protein structure determination and drug development have allowed for generation of highly specific PI3Kγ inhibitors, with the first now in clinical trials for several oncology indications. Recently, a monogenic immune disorder caused by PI3Kγ deficiency was discovered in humans and modelled in mice. Human inactivated PI3Kγ syndrome confirms the immunomodulatory roles of PI3Kγ and strengthens newly defined roles of this molecule in modulating inflammatory cytokine release in macrophages. Here, we review the functions of PI3Kγ in the immune system and discuss how our understanding of its potential as a therapeutic target has evolved.
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Affiliation(s)
- Stephen M Lanahan
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT, USA
| | | | - Carrie L Lucas
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT, USA.
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5
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Li L, Zhao Y, Hu Y, Wang X, Jin Q, Zhao Y. Recombinant EGFL7 Mitigated Pressure Overload-Induced Cardiac Remodeling by Blocking PI3Kγ/AKT/NFκB Signaling in Macrophages. Front Pharmacol 2022; 13:858118. [PMID: 35721105 PMCID: PMC9200063 DOI: 10.3389/fphar.2022.858118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 04/25/2022] [Indexed: 11/13/2022] Open
Abstract
Inflammation and endothelial dysfunction play an essential role in heart failure (HF). Epidermal growth factor-like protein 7 (EGFL7) is upregulated during pathological hypoxia and exerts a protective role. However, it is unclear whether there is a link between abnormal EGFL7 expression and inflammation in overload stress-induced heart failure. Our results showed that EGFL7 transiently increased during the early 4 weeks of TAC and in hypertensive patients without heart failure. However, it decreased to the basal line in the heart tissue 8 weeks post-transverse aortic constriction (TAC) or hypertensive patients with heart failure. Knockdown of EGFL7 with siRNA in vivo accelerated cardiac dysfunction, fibrosis, and macrophage infiltration 4 weeks after TAC. Deletion of macrophages in siRNA-EGFL7-TAC mice rescued that pathological phenotype. In vitro research revealed the mechanism. PI3Kγ/AKT/NFκB signaling in macrophages was activated by the supernatant from endothelial cells stimulated by siRNA-EGFL7+phenylephrine. More macrophages adhered to endothelial cells, but pretreatment of macrophages with PI3Kγ inhibitors decreased the adhesion of macrophages to endothelial cells. Ultimately, treatment with recombinant rmEGFL7 rescued cardiac dysfunction and macrophage infiltration in siRNA-EGFL7-TAC mice. In conclusion, EGFL7 is a potential inhibitor of macrophage adhesion to mouse aortic endothelial cells. The downregulation of EGFL7 combined with increased macrophage infiltration further promoted cardiac dysfunction under pressure overload stress. Mechanistically, EGFL7 reduced endothelial cell adhesion molecule expression and inhibited the PI3Kγ/AKT/NFκB signaling pathway in macrophages.
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Affiliation(s)
- Lei Li
- Department of Cardiology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Ying Zhao
- Department of Geriatrics, 960 Hospital of PLA(The General Hospital of Jinan Command), Jinan, China
- *Correspondence: Ying Zhao, ; Qun Jin,
| | - Ying Hu
- Department of Cardiology, Liao Cheng People’s Hospital, Liao Cheng, China
| | - Xiaohui Wang
- Department of Medical Records, Heze Municipal Hospital, Heze, China
| | - Qun Jin
- Department of Geriatrics, 960 Hospital of PLA(The General Hospital of Jinan Command), Jinan, China
- *Correspondence: Ying Zhao, ; Qun Jin,
| | - Ying Zhao
- Department of Geriatrics, 960 Hospital of PLA(The General Hospital of Jinan Command), Jinan, China
- *Correspondence: Ying Zhao, ; Qun Jin,
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Park JM, Do VQ, Seo YS, Kim HJ, Nam JH, Yin MZ, Kim HJ, Kim SJ, Griendling KK, Lee MY. NADPH Oxidase 1 Mediates Acute Blood Pressure Response to Angiotensin II by Contributing to Calcium Influx in Vascular Smooth Muscle Cells. Arterioscler Thromb Vasc Biol 2022; 42:e117-e130. [PMID: 35354309 DOI: 10.1161/atvbaha.121.317239] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Reactive oxygen species (ROS) and calcium ions (Ca2+) are among the major effectors of Ang II (angiotensin II) in vascular smooth muscle cells. ROS are related to Ca2+ signaling or contraction induced by Ang II, but little is known about their detailed functions. Here, NOX (NADPH oxidase), a major ROS source responsive to Ang II, was investigated regarding its contribution to Ca2+ signaling. METHODS Vascular smooth muscle cells were primary cultured from rat aorta. Ca2+ and ROS were monitored mainly using fura-2 and HyPer family probes' respectively. Signals activating NOX were examined with relevant pharmacological inhibitors and genetic manipulation techniques. RESULTS Ang II-induced ROS generation was found to be biphasic: the first phase of ROS production, which was mainly mediated by NOX1, was small and transient, preceding a rise in Ca2+, and the second phase of ROS generation, mediated by NOX1 and NOX4, was slow but sizeable, continuing over tens of minutes. NOX1-derived superoxide in the first phase is required for Ca2+ influx through nonselective cation channels. AT1R (Ang II type 1 receptor)-Gβγ-PI3Kγ (phosphoinositide 3-kinase γ) signaling pathway was responsible for the rapid activation of NOX1 in the first phase, while in the second phase, NOX1 was further activated by a separate AT1R-Gαq/11-PLC (phospholipase C)-PKCβ (protein kinase C β) signaling axis. Consistent with these observations, aortas from NOX1-knockout mice exhibited reduced contractility in response to Ang II, and thus the acute pressor response to Ang II was also attenuated in NOX1-knockout mice. CONCLUSIONS NOX1 mediates Ca2+ signal generation and thereby contributes to vascular contraction and blood pressure elevation by Ang II.
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Affiliation(s)
- Jung-Min Park
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Goyang, Republic of Korea (J.-M.P., V.Q.D., Y.-S.S., M.-Y.L.)
| | - Van Quan Do
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Goyang, Republic of Korea (J.-M.P., V.Q.D., Y.-S.S., M.-Y.L.)
| | - Yoon-Seok Seo
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Goyang, Republic of Korea (J.-M.P., V.Q.D., Y.-S.S., M.-Y.L.)
| | - Hyun Jong Kim
- Department of Physiology, Dongguk University College of Medicine, Gyeongju, Republic of Korea (H.J.K., J.H.N.)
| | - Joo Hyun Nam
- Department of Physiology, Dongguk University College of Medicine, Gyeongju, Republic of Korea (H.J.K., J.H.N.)
| | - Ming Zhe Yin
- Department of Physiology, Seoul National University College of Medicine, Seoul, Republic of Korea (M.Z.Y., H.J.K., S.J.K.)
| | - Hae Jin Kim
- Department of Physiology, Seoul National University College of Medicine, Seoul, Republic of Korea (M.Z.Y., H.J.K., S.J.K.)
| | - Sung Joon Kim
- Department of Physiology, Seoul National University College of Medicine, Seoul, Republic of Korea (M.Z.Y., H.J.K., S.J.K.)
| | - Kathy K Griendling
- Division of Cardiology, Department of Medicine, Emory University, Atlanta, GA (K.K.G.)
| | - Moo-Yeol Lee
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University, Goyang, Republic of Korea (J.-M.P., V.Q.D., Y.-S.S., M.-Y.L.)
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7
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Margaria JP, Moretta L, Alves-Filho JC, Hirsch E. PI3K Signaling in Mechanisms and Treatments of Pulmonary Fibrosis Following Sepsis and Acute Lung Injury. Biomedicines 2022; 10:756. [PMID: 35453505 PMCID: PMC9028704 DOI: 10.3390/biomedicines10040756] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 03/11/2022] [Accepted: 03/22/2022] [Indexed: 12/12/2022] Open
Abstract
Pulmonary fibrosis is a pathological fibrotic process affecting the lungs of five million people worldwide. The incidence rate will increase even more in the next years due to the long-COVID-19 syndrome, but a resolving treatment is not available yet and usually prognosis is poor. The emerging role of the phosphatidylinositol 3-kinase (PI3K)/AKT signaling in fibrotic processes has inspired the testing of drugs targeting the PI3K/Akt pathway that are currently under clinical evaluation. This review highlights the progress in understanding the role of PI3K/Akt in the development of lung fibrosis and its causative pathological context, including sepsis as well as acute lung injury (ALI) and its consequent acute respiratory distress syndrome (ARDS). We further summarize current knowledge about PI3K inhibitors for pulmonary fibrosis treatment, including drugs under development as well as in clinical trials. We finally discuss how the design of inhaled compounds targeting the PI3K pathways might potentiate efficacy and improve tolerability.
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Affiliation(s)
- Jean Piero Margaria
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino, Via Nizza 52, 10126 Torino, Italy; (J.P.M.); (L.M.)
| | - Lucia Moretta
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino, Via Nizza 52, 10126 Torino, Italy; (J.P.M.); (L.M.)
| | - Jose Carlos Alves-Filho
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Avenida Bandeirantes 3900, Ribeirao Preto 14049-900, Brazil;
| | - Emilio Hirsch
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino, Via Nizza 52, 10126 Torino, Italy; (J.P.M.); (L.M.)
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8
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Di Pietro P, Carrizzo A, Sommella E, Oliveti M, Iacoviello L, Di Castelnuovo A, Acernese F, Damato A, De Lucia M, Merciai F, Iesu P, Venturini E, Izzo R, Trimarco V, Ciccarelli M, Giugliano G, Carnevale R, Cammisotto V, Migliarino S, Virtuoso N, Strianese A, Izzo V, Campiglia P, Ciaglia E, Levkau B, Puca AA, Vecchione C. Targeting the ASMase/S1P pathway protects from sortilin-evoked vascular damage in hypertension. J Clin Invest 2022; 132:146343. [PMID: 35104805 PMCID: PMC8803332 DOI: 10.1172/jci146343] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 11/24/2021] [Indexed: 12/24/2022] Open
Abstract
Sortilin has been positively correlated with vascular disorders in humans. No study has yet evaluated the possible direct effect of sortilin on vascular function. We used pharmacological and genetic approaches coupled with study of murine and human samples to unravel the mechanisms recruited by sortilin in the vascular system. Sortilin induced endothelial dysfunction of mesenteric arteries through NADPH oxidase 2 (NOX2) isoform activation, dysfunction that was prevented by knockdown of acid sphingomyelinase (ASMase) or sphingosine kinase 1. In vivo, recombinant sortilin administration induced arterial hypertension in WT mice. In contrast, genetic deletion of sphingosine-1-phosphate receptor 3 (S1P3) and gp91phox/NOX2 resulted in preservation of endothelial function and blood pressure homeostasis after 14 days of systemic sortilin administration. Translating these research findings into the clinical setting, we detected elevated sortilin levels in hypertensive patients with endothelial dysfunction. Furthermore, in a population-based cohort of 270 subjects, we showed increased plasma ASMase activity and increased plasma levels of sortilin, S1P, and soluble NOX2-derived peptide (sNOX2-dp) in hypertensive subjects, and the increase was more pronounced in hypertensive subjects with uncontrolled blood pressure. Our studies reveal what we believe is a previously unrecognized role of sortilin in the impairment of vascular function and in blood pressure homeostasis and suggest the potential of sortilin and its mediators as biomarkers for the prediction of vascular dysfunction and high blood pressure.
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Affiliation(s)
- Paola Di Pietro
- Department of Medicine, Surgery and Dentistry, "Scuola Medica Salernitana" University of Salerno, Baronissi, Italy
| | - Albino Carrizzo
- Department of Medicine, Surgery and Dentistry, "Scuola Medica Salernitana" University of Salerno, Baronissi, Italy.,Department of Vascular Physiopathology, IRCCS Neuromed, Pozzilli, Italy
| | - Eduardo Sommella
- Department of Pharmacy, School of Pharmacy, University of Salerno, Fisciano, Italy
| | - Marco Oliveti
- Department of Medicine, Surgery and Dentistry, "Scuola Medica Salernitana" University of Salerno, Baronissi, Italy
| | - Licia Iacoviello
- Department of Medicine and Surgery, Research Center in Epidemiology and Preventive Medicine (EPIMED), University of Insubria, Varese, Italy.,Department of Epidemiology and Prevention, IRCCS Neuromed, Pozzilli, Italy
| | | | - Fausto Acernese
- Department of Pharmacy, School of Pharmacy, University of Salerno, Fisciano, Italy
| | - Antonio Damato
- Department of Vascular Physiopathology, IRCCS Neuromed, Pozzilli, Italy
| | | | - Fabrizio Merciai
- Department of Pharmacy, School of Pharmacy, University of Salerno, Fisciano, Italy.,PhD Program in Drug Discovery and Development, University of Salerno, Fisciano, Italy
| | - Paola Iesu
- Department of Medicine, Surgery and Dentistry, "Scuola Medica Salernitana" University of Salerno, Baronissi, Italy
| | | | - Raffaele Izzo
- Department of Advanced Biomedical Sciences, University of Naples Federico II, Naples, Italy
| | - Valentina Trimarco
- Department of Neuroscience, Reproductive Sciences and Dentistry, University of Naples Federico II, Naples, Italy
| | - Michele Ciccarelli
- Department of Medicine, Surgery and Dentistry, "Scuola Medica Salernitana" University of Salerno, Baronissi, Italy
| | - Giuseppe Giugliano
- Department of Advanced Biomedical Sciences, University of Naples Federico II, Naples, Italy
| | - Roberto Carnevale
- Mediterranea Cardiocentro, Naples, Italy.,Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Latina, Italy
| | - Vittoria Cammisotto
- Department of General Surgery and Surgical Speciality Paride Stefanini, Sapienza University of Rome, Rome, Italy
| | - Serena Migliarino
- Molecular and Cellular Cardiology, Department of Experimental and Clinical Medicine, Magna Graecia University, Catanzaro, Italy
| | - Nicola Virtuoso
- Department of Medicine, Surgery and Dentistry, "Scuola Medica Salernitana" University of Salerno, Baronissi, Italy
| | - Andrea Strianese
- Department of Medicine, Surgery and Dentistry, "Scuola Medica Salernitana" University of Salerno, Baronissi, Italy
| | - Viviana Izzo
- Department of Medicine, Surgery and Dentistry, "Scuola Medica Salernitana" University of Salerno, Baronissi, Italy
| | - Pietro Campiglia
- Department of Pharmacy, School of Pharmacy, University of Salerno, Fisciano, Italy.,European Biomedical Research Institute of Salerno (EBRIS), Salerno, Italy
| | - Elena Ciaglia
- Department of Medicine, Surgery and Dentistry, "Scuola Medica Salernitana" University of Salerno, Baronissi, Italy
| | - Bodo Levkau
- Institute for Molecular Medicine III, Heinrich-Heine-University, Medical Faculty, Cardiovascular Research Institute Düsseldorf (CARID), Düsseldorf, Germany
| | - Annibale A Puca
- Department of Medicine, Surgery and Dentistry, "Scuola Medica Salernitana" University of Salerno, Baronissi, Italy.,Ageing Unit, IRCCS MultiMedica, Milan, Italy
| | - Carmine Vecchione
- Department of Medicine, Surgery and Dentistry, "Scuola Medica Salernitana" University of Salerno, Baronissi, Italy.,Department of Vascular Physiopathology, IRCCS Neuromed, Pozzilli, Italy
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9
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Abdi A, AlOtaiby S, Badarin FA, Khraibi A, Hamdan H, Nader M. Interaction of SARS-CoV-2 with cardiomyocytes: Insight into the underlying molecular mechanisms of cardiac injury and pharmacotherapy. Biomed Pharmacother 2022; 146:112518. [PMID: 34906770 PMCID: PMC8654598 DOI: 10.1016/j.biopha.2021.112518] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 11/15/2021] [Accepted: 12/06/2021] [Indexed: 01/07/2023] Open
Abstract
SARS-CoV-2 causes respiratory illness with a spectrum of systemic complications. However, the mechanism for cardiac infection and cardiomyocyte injury in COVID-19 patients remains unclear. The current literature supports the notion that SARS-CoV-2 particles access the heart either by the circulating blood cells or by extracellular vesicles, originating from the inflamed lungs, and encapsulating the virus along with its receptor (ACE2). Both cardiomyocytes and pericytes (coronary arteries) express the necessary accessory proteins for access of SARS-CoV-2 particles (i.e. ACE2, NRP-1, TMPRSS2, CD147, integrin α5β1, and CTSB/L). These proteins facilitate the SARS-CoV-2 interaction and entry into the pericytes and cardiomyocytes thus leading to cardiac manifestations. Subsequently, various signaling pathways are altered in the infected cardiomyocytes (i.e. increased ROS production, reduced contraction, impaired calcium homeostasis), causing cardiac dysfunction. The currently adopted pharmacotherapy in severe COVID-19 subjects exhibited side effects on the heart, often manifested by electrical abnormalities. Nonetheless, cardiovascular adverse repercussions have been associated with the advent of some of the SARS-CoV-2 vaccines with no clear mechanisms underlining these complications. We provide herein an overview of the pathways involved with cardiomyocyte in COVID-19 subjects to help promoting pharmacotherapies that can protect against SARS-CoV-2-induced cardiac injuries.
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Affiliation(s)
- Abdulhamid Abdi
- Department of Physiology and Immunology, College of Medicine and Health Sciences, and Biotechnology Center, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Shahad AlOtaiby
- Research Center, King Fahad Medical City, Central Second Health Cluster, Ministry of Health, Riyadh, Saudi Arabia
| | - Firas Al Badarin
- Heart and Vascular Institute, Cleveland Clinic Abu Dhabi, Abu Dhabi, United Arab Emirates
| | - Ali Khraibi
- Department of Physiology and Immunology, College of Medicine and Health Sciences, and Biotechnology Center, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Hamdan Hamdan
- Department of Physiology and Immunology, College of Medicine and Health Sciences, and Biotechnology Center, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Moni Nader
- Department of Physiology and Immunology, College of Medicine and Health Sciences, and Biotechnology Center, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates.
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10
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PI3K Isoforms in Vascular Biology, A Focus on the Vascular System-Immune Response Connection. Curr Top Microbiol Immunol 2022; 436:289-309. [DOI: 10.1007/978-3-031-06566-8_12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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11
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Rohde D, Vandoorne K, Lee IH, Grune J, Zhang S, McAlpine CS, Schloss MJ, Nayar R, Courties G, Frodermann V, Wojtkiewicz G, Honold L, Chen Q, Schmidt S, Iwamoto Y, Sun Y, Cremer S, Hoyer FF, Iborra-Egea O, Muñoz-Guijosa C, Ji F, Zhou B, Adams RH, Wythe JD, Hidalgo J, Watanabe H, Jung Y, van der Laan AM, Piek JJ, Kfoury Y, Désogère PA, Vinegoni C, Dutta P, Sadreyev RI, Caravan P, Bayes-Genis A, Libby P, Scadden DT, Lin CP, Naxerova K, Swirski FK, Nahrendorf M. Bone marrow endothelial dysfunction promotes myeloid cell expansion in cardiovascular disease. NATURE CARDIOVASCULAR RESEARCH 2022; 1:28-44. [PMID: 35747128 PMCID: PMC9216333 DOI: 10.1038/s44161-021-00002-8] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 10/27/2021] [Indexed: 12/13/2022]
Abstract
Abnormal hematopoiesis advances cardiovascular disease by generating excess inflammatory leukocytes that attack the arteries and the heart. The bone marrow niche regulates hematopoietic stem cell proliferation and hence the systemic leukocyte pool, but whether cardiovascular disease affects the hematopoietic organ's microvasculature is unknown. Here we show that hypertension, atherosclerosis and myocardial infarction (MI) instigate endothelial dysfunction, leakage, vascular fibrosis and angiogenesis in the bone marrow, altogether leading to overproduction of inflammatory myeloid cells and systemic leukocytosis. Limiting angiogenesis with endothelial deletion of Vegfr2 (encoding vascular endothelial growth factor (VEGF) receptor 2) curbed emergency hematopoiesis after MI. We noted that bone marrow endothelial cells assumed inflammatory transcriptional phenotypes in all examined stages of cardiovascular disease. Endothelial deletion of Il6 or Vcan (encoding versican), genes shown to be highly expressed in mice with atherosclerosis or MI, reduced hematopoiesis and systemic myeloid cell numbers in these conditions. Our findings establish that cardiovascular disease remodels the vascular bone marrow niche, stimulating hematopoiesis and production of inflammatory leukocytes.
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Affiliation(s)
- David Rohde
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Department of Cardiology, Angiology and Pneumology, Heidelberg University Hospital, Heidelberg, Germany
- These authors contributed equally: David Rohde, Katrien Vandoorne
| | - Katrien Vandoorne
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Biomedical Engineering Faculty, Technion-Israel Institute of Technology, Haifa, Israel
- These authors contributed equally: David Rohde, Katrien Vandoorne
| | - I-Hsiu Lee
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Jana Grune
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Shuang Zhang
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Cameron S. McAlpine
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Maximilian J. Schloss
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Ribhu Nayar
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Gabriel Courties
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Vanessa Frodermann
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Gregory Wojtkiewicz
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Lisa Honold
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Qi Chen
- Max Planck Institute for Molecular Biomedicine, Muenster, Germany
| | - Stephen Schmidt
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Yoshiko Iwamoto
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Yuan Sun
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Sebastian Cremer
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Friedrich F. Hoyer
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | | | | | - Fei Ji
- Department of Genetics, Harvard Medical School, Boston, MA, USA
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA, USA
| | - Bin Zhou
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, China
| | - Ralf H. Adams
- Max Planck Institute for Molecular Biomedicine, Muenster, Germany
| | - Joshua D. Wythe
- Cardiovascular Research Institute, Department of Molecular Physiology and Biophysics, Baylor College of Medicine, Houston, TX, USA
| | - Juan Hidalgo
- Institute of Neurosciences and Department of Cellular Biology, Physiology and Immunology, Universitat Autonoma de Barcelona, Barcelona, Spain
| | - Hideto Watanabe
- Institute for Molecular Science of Medicine, Aichi Medical University, Aichi, Japan
| | - Yookyung Jung
- Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Anja M. van der Laan
- Heart Center, Department of Cardiology, Amsterdam University Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Jan J. Piek
- Heart Center, Department of Cardiology, Amsterdam University Medical Center, University of Amsterdam, Amsterdam, the Netherlands
| | - Youmna Kfoury
- Center for Regenerative Medicine and Cancer Center, Massachusetts General Hospital, Boston, MA, USA
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, USA
| | - Pauline A. Désogère
- Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
| | - Claudio Vinegoni
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Partha Dutta
- Pittsburgh Heart, Lung, Blood and Vascular Medicine Institute, Division of Cardiology, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Ruslan I. Sadreyev
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA, USA
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Peter Caravan
- Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
| | | | - Peter Libby
- Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - David T. Scadden
- Center for Regenerative Medicine and Cancer Center, Massachusetts General Hospital, Boston, MA, USA
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, USA
| | - Charles P. Lin
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Institute for Molecular Science of Medicine, Aichi Medical University, Aichi, Japan
| | - Kamila Naxerova
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Filip K. Swirski
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Matthias Nahrendorf
- Center for Systems Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Cardiovascular Research Center, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Department of Internal Medicine I, University Hospital Wuerzburg, Wuerzburg, Germany
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12
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Tracy EP, Hughes W, Beare JE, Rowe G, Beyer A, LeBlanc AJ. Aging-Induced Impairment of Vascular Function: Mitochondrial Redox Contributions and Physiological/Clinical Implications. Antioxid Redox Signal 2021; 35:974-1015. [PMID: 34314229 PMCID: PMC8905248 DOI: 10.1089/ars.2021.0031] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Significance: The vasculature responds to the respiratory needs of tissue by modulating luminal diameter through smooth muscle constriction or relaxation. Coronary perfusion, diastolic function, and coronary flow reserve are drastically reduced with aging. This loss of blood flow contributes to and exacerbates pathological processes such as angina pectoris, atherosclerosis, and coronary artery and microvascular disease. Recent Advances: Increased attention has recently been given to defining mechanisms behind aging-mediated loss of vascular function and development of therapeutic strategies to restore youthful vascular responsiveness. The ultimate goal aims at providing new avenues for symptom management, reversal of tissue damage, and preventing or delaying of aging-induced vascular damage and dysfunction in the first place. Critical Issues: Our major objective is to describe how aging-associated mitochondrial dysfunction contributes to endothelial and smooth muscle dysfunction via dysregulated reactive oxygen species production, the clinical impact of this phenomenon, and to discuss emerging therapeutic strategies. Pathological changes in regulation of mitochondrial oxidative and nitrosative balance (Section 1) and mitochondrial dynamics of fission/fusion (Section 2) have widespread effects on the mechanisms underlying the ability of the vasculature to relax, leading to hyperconstriction with aging. We will focus on flow-mediated dilation, endothelial hyperpolarizing factors (Sections 3 and 4), and adrenergic receptors (Section 5), as outlined in Figure 1. The clinical implications of these changes on major adverse cardiac events and mortality are described (Section 6). Future Directions: We discuss antioxidative therapeutic strategies currently in development to restore mitochondrial redox homeostasis and subsequently vascular function and evaluate their potential clinical impact (Section 7). Antioxid. Redox Signal. 35, 974-1015.
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Affiliation(s)
- Evan Paul Tracy
- Department of Physiology, University of Louisville, Louisville, Kentucky, USA
| | - William Hughes
- Department of Medicine and Physiology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Jason E Beare
- Cardiovascular Innovation Institute, University of Louisville, Louisville, Kentucky, USA.,Kentucky Spinal Cord Injury Research Center, University of Louisville, Louisville, Kentucky, USA
| | - Gabrielle Rowe
- Department of Physiology, University of Louisville, Louisville, Kentucky, USA
| | - Andreas Beyer
- Department of Medicine and Physiology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Amanda Jo LeBlanc
- Department of Physiology, University of Louisville, Louisville, Kentucky, USA.,Cardiovascular Innovation Institute, University of Louisville, Louisville, Kentucky, USA
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13
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Carrizzo A, Lizio R, Di Pietro P, Ciccarelli M, Damato A, Venturini E, Iannece P, Sommella E, Campiglia P, Ockermann P, Vecchione C. Healthberry 865 ® and Its Related, Specific, Single Anthocyanins Exert a Direct Vascular Action, Modulating Both Endothelial Function and Oxidative Stress. Antioxidants (Basel) 2021; 10:antiox10081191. [PMID: 34439440 PMCID: PMC8388872 DOI: 10.3390/antiox10081191] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/20/2021] [Accepted: 07/20/2021] [Indexed: 12/15/2022] Open
Abstract
In recent years, epidemiological studies have identified a relationship between diet and cerebro-cardiovascular disease (CVD). In this regard, there is a promising dietary group for cardiovascular protection are polyphenols, especially anthocyanins. Vascular reactivity studies were performed using Healthberry 865® and constituent single anthocyanins to characterize vasomotor responses; immunofluorescence analysis with dichlorofluorescein diacetate and dihydroethidium were used to evaluate nitric oxide and oxidative stress; lucigenin assay was used to measure NADPH oxidase activity; and gel electrophoresis and immunoblotting were used to dissect the molecular mechanisms involved. We demonstrated that Healthberry 865® exerts an important vasorelaxant effect of resistance artery functions in mice. Its action is mediated by nitric oxide release through the intracellular signaling PI3K/Akt. Moreover, behind its capability of modulating vascular tone, it also exerts an important antioxidant effect though the modulation of the NADPH oxidase enzyme. Interestingly, its cardiovascular properties are mediated by the selective action of different anthocyanins. Finally, the exposure of human dysfunctional vessels to Healthberry 865® significantly reduces oxidative stress and improves NO bioavailability. Although further investigations are needed, our data demonstrate the direct role of Healthberry 865® on the modulation of vasculature, both on the vasorelaxation and on oxidative stress; thus, supporting the concept that a pure mixture of anthocyanins could be helpful in preventing the onset of vascular dysfunction associated with the development of CVD.
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Affiliation(s)
- Albino Carrizzo
- Cardiovascular Research Unit, Department of Medicine and Surgery, University of Salerno, 84081 Baronissi, Italy; (A.C.); (P.D.P.); (M.C.); (P.I.)
- Laboratory of Vascular Physiopathology—I.R.C.C.S. Neuromed, 86077 Pozzilli, Italy; (A.D.); (E.V.)
| | - Rosario Lizio
- Evonik Operations GmbH, Rodenbacher Chaussee 4, 63457 Hanau, Germany;
| | - Paola Di Pietro
- Cardiovascular Research Unit, Department of Medicine and Surgery, University of Salerno, 84081 Baronissi, Italy; (A.C.); (P.D.P.); (M.C.); (P.I.)
| | - Michele Ciccarelli
- Cardiovascular Research Unit, Department of Medicine and Surgery, University of Salerno, 84081 Baronissi, Italy; (A.C.); (P.D.P.); (M.C.); (P.I.)
| | - Antonio Damato
- Laboratory of Vascular Physiopathology—I.R.C.C.S. Neuromed, 86077 Pozzilli, Italy; (A.D.); (E.V.)
| | - Eleonora Venturini
- Laboratory of Vascular Physiopathology—I.R.C.C.S. Neuromed, 86077 Pozzilli, Italy; (A.D.); (E.V.)
| | - Patrizia Iannece
- Cardiovascular Research Unit, Department of Medicine and Surgery, University of Salerno, 84081 Baronissi, Italy; (A.C.); (P.D.P.); (M.C.); (P.I.)
| | - Eduardo Sommella
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy; (E.S.); (P.C.)
| | - Pietro Campiglia
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy; (E.S.); (P.C.)
| | - Philipp Ockermann
- Institute for Tissue Engineering and Regenerative Medicine, Universität Würzburg, Josef-Schneider Straße 2, 97080 Würzburg, Germany;
| | - Carmine Vecchione
- Cardiovascular Research Unit, Department of Medicine and Surgery, University of Salerno, 84081 Baronissi, Italy; (A.C.); (P.D.P.); (M.C.); (P.I.)
- Laboratory of Vascular Physiopathology—I.R.C.C.S. Neuromed, 86077 Pozzilli, Italy; (A.D.); (E.V.)
- Correspondence:
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14
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Jaworski JP, Urrutia M, Dascal E, Jaita G, Peluffo MC. C-C motif chemokine receptor 2 as a novel intermediate in the ovulatory cascade. Mol Hum Reprod 2021; 26:289-300. [PMID: 32159806 DOI: 10.1093/molehr/gaaa020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Revised: 02/28/2020] [Indexed: 12/12/2022] Open
Abstract
Expression of immune function genes within follicle cells has been reported in ovaries from many species. Recent work from our laboratory showed a direct effect of the monocyte chemoattractant protein 1/C-C motif chemokine receptor 2 system within the feline cumulus oocyte complex, by increasing the mRNA levels of key genes involved in the ovulatory cascade in vitro. Studies were designed to evaluate if C-C motif chemokine receptor 2 acts as a novel mediator of the ovulatory cascade in vitro. Therefore, feline cumulus oocyte complexes were cultured in the presence or absence of a highly selective C-C motif chemokine receptor 2 antagonist together with known inducers of cumulus-oocyte expansion and/or oocyte maturation to assess mRNA expression of key genes related to periovulatory events in other species as well as oocyte maturation. Also, the effects of recombinant monocyte chemoattractant protein 1 on spontaneous or gonadotrophin-induced oocyte maturation were assessed. This is an in vitro system using isolated cumulus oocyte complexes from feline ovaries. The present study reveals the modulation of several key ovulatory genes by a highly selective C-C motif chemokine receptor 2 antagonist. However, this antagonist was not enough to block the oocyte maturation induced by gonadotropins or amphiregulin. Nonetheless, recombinant monocyte chemoattractant protein 1 had a significant effect on spontaneous oocyte maturation, increasing the percentage of metaphase II stage oocytes in comparison to the control. This is the first study in any species to establish C-C motif chemokine receptor 2 as a mediator of some actions of the mid-cycle gonadotrophin surge.
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Affiliation(s)
- J P Jaworski
- Instituto de Virología, INTA (National Institute of Agricultural Technology-Instituto Nacional de Tecnología Agropecuaria)-CONICET, Argentina. Las Cabañas y Los Reseros s/n, Las Cabañas y Los Reseros 10 s/n, Castelar, Argentina
| | - M Urrutia
- Centro de Investigaciones Endocrinológicas "Dr. César Bergadá" (CEDIE), CONICET - FEI - División de Endocrinología, Hospital de Niños Ricardo Gutiérrez, Gallo 1330, C1425EFD Ciudad Autónoma de Buenos Aires, Argentina
| | - E Dascal
- Centro de Investigaciones Endocrinológicas "Dr. César Bergadá" (CEDIE), CONICET - FEI - División de Endocrinología, Hospital de Niños Ricardo Gutiérrez, Gallo 1330, C1425EFD Ciudad Autónoma de Buenos Aires, Argentina
| | - G Jaita
- Instituto de Investigaciones Biomédicas (INBIOMED), Facultad de Medicina CONICET, Universidad de Buenos Aires, Paraguay 2155, C1121ABG Ciudad Autónoma de Buenos Aires, Argentina.,Departamento de Biología Celular e Histología, Facultad de Medicina, Universidad de Buenos Aires Buenos, Paraguay 2155, C1121ABG Ciudad Autónoma de Buenos Aires, Argentina
| | - M C Peluffo
- Centro de Investigaciones Endocrinológicas "Dr. César Bergadá" (CEDIE), CONICET - FEI - División de Endocrinología, Hospital de Niños Ricardo Gutiérrez, Gallo 1330, C1425EFD Ciudad Autónoma de Buenos Aires, Argentina
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15
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Busceti CL, Ginerete RP, Di Menna L, D'Errico G, Cisani F, Di Pietro P, Imbriglio T, Bruno V, Battaglia G, Fornai F, Monn JA, Pittaluga A, Nicoletti F. Behavioural and biochemical responses to methamphetamine are differentially regulated by mGlu2 and mGlu3 metabotropic glutamate receptors in male mice. Neuropharmacology 2021; 196:108692. [PMID: 34217776 DOI: 10.1016/j.neuropharm.2021.108692] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 06/04/2021] [Accepted: 06/27/2021] [Indexed: 01/09/2023]
Abstract
Group II metabotropic glutamate receptors (mGlu2 and mGlu3 receptors) shape mechanisms of methamphetamine addiction, but the individual role played by the two subtypes is unclear. We measured methamphetamine-induced conditioned place preference (CPP) and motor responses to single or repeated injections of methamphetamine in wild-type, mGlu2-/-, and mGlu3-/-mice. Only mGlu3-/-mice showed methamphetamine preference in the CPP test. Motor response to the first methamphetamine injection was dramatically reduced in mGlu2-/-mice, unless these mice were treated with the mGlu5 receptor antagonist, MTEP. In contrast, methamphetamine-induced sensitization was increased in mGlu3-/-mice compared to wild-type mice. Only mGlu3-/-mice sensitized to methamphetamine showed increases in phospho-ERK1/2 levels in the nucleus accumbens (NAc) and free radical formation in the NAc and medial prefrontal cortex. These changes were not detected in mGlu2-/-mice. We also measured a series of biochemical parameters related to the mechanism of action of methamphetamine in naïve mice to disclose the nature of the differential behavioural responses of the three genotypes. We found a reduced expression and activity of dopamine transporter (DAT) and vesicular monoamine transporter-2 in the NAc and striatum of mGlu2-/-and mGlu3-/-mice, whereas expression of the DAT adaptor, syntaxin 1A, was selectively increased in the striatum of mGlu3-/-mice. Methamphetamine-stimulated dopamine release in striatal slices was largely reduced in mGlu2-/-, but not in mGlu3-/-, mice. These findings suggest that drugs that selectively enhance mGlu3 receptor activity or negatively modulate mGlu2 receptors might be beneficial in the treatment of methamphetamine addiction and associated brain damage.
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Affiliation(s)
| | | | | | | | | | | | | | - Valeria Bruno
- IRCCS Neuromed, Pozzilli, Italy; Department of Physiology and Pharmacology, University Sapienza, Roma, Italy
| | - Giuseppe Battaglia
- IRCCS Neuromed, Pozzilli, Italy; Department of Physiology and Pharmacology, University Sapienza, Roma, Italy
| | - Francesco Fornai
- IRCCS Neuromed, Pozzilli, Italy; Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | | | - Anna Pittaluga
- Department of Pharmacy, University of Genova, Genova, Italy; IRCCS Ospedale Policlinico San Martino, Genova, Italy
| | - Ferdinando Nicoletti
- IRCCS Neuromed, Pozzilli, Italy; Department of Physiology and Pharmacology, University Sapienza, Roma, Italy.
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16
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Cardiovascular toxicity of PI3Kα inhibitors. Clin Sci (Lond) 2021; 134:2595-2622. [PMID: 33063821 DOI: 10.1042/cs20200302] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 09/27/2020] [Accepted: 09/30/2020] [Indexed: 02/07/2023]
Abstract
The phosphoinositide 3-kinases (PI3Ks) are a family of intracellular lipid kinases that phosphorylate the 3'-hydroxyl group of inositol membrane lipids, resulting in the production of phosphatidylinositol 3,4,5-trisphosphate from phosphatidylinositol 4,5-bisphosphate. This results in downstream effects, including cell growth, proliferation, and migration. The heart expresses three PI3K class I enzyme isoforms (α, β, and γ), and these enzymes play a role in cardiac cellular survival, myocardial hypertrophy, myocardial contractility, excitation, and mechanotransduction. The PI3K pathway is associated with various disease processes but is particularly important to human cancers since many gain-of-function mutations in this pathway occur in various cancers. Despite the development, testing, and regulatory approval of PI3K inhibitors in recent years, there are still significant challenges when creating and utilizing these drugs, including concerns of adverse effects on the heart. There is a growing body of evidence from preclinical studies revealing that PI3Ks play a crucial cardioprotective role, and thus inhibition of this pathway could lead to cardiac dysfunction, electrical remodeling, vascular damage, and ultimately, cardiovascular disease. This review will focus on PI3Kα, including the mechanisms underlying the adverse cardiovascular effects resulting from PI3Kα inhibition and the potential clinical implications of treating patients with these drugs, such as increased arrhythmia burden, biventricular cardiac dysfunction, and impaired recovery from cardiotoxicity. Recommendations for future directions for preclinical and clinical work are made, highlighting the possible role of PI3Kα inhibition in the progression of cancer-related cachexia and female sex and pre-existing comorbidities as independent risk factors for cardiac abnormalities after cancer treatment.
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17
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Carrizzo A, Basilicata MG, Pepe G, Sørensen KK, Ciccarelli M, Sarno VD, Damato A, Venturini E, Borrelli A, Musella S, Abate M, Pietro PD, Ostacolo C, Campiglia P, Vecchione C. A Novel Vasoactive Peptide "PG1" from Buffalo Ice-Cream Protects from Angiotensin-Evoked High Blood Pressure. Antioxidants (Basel) 2021; 10:antiox10030441. [PMID: 33809389 PMCID: PMC8002072 DOI: 10.3390/antiox10030441] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 02/24/2021] [Accepted: 03/08/2021] [Indexed: 12/22/2022] Open
Abstract
Background: Arterial hypertension is the most important risk factor for cardiovascular diseases, myocardial infarction, heart failure, renal failure and peripheral vascular disease. In the last decade, milk-derived bioactive peptides have attracted attention for their beneficial cardiovascular properties. Methods: Here, we combined in vitro chemical assay such as LC-MS/MS analysis of buffalo ice cream, ex vivo vascular studies evaluating endothelial and smooth muscle responses using pressure myograph, and translational assay testing in vivo the vascular actions of PG1 administration in murine models. Results: We demonstrate that a novel buffalo ice-cream-derived pentapeptide “QKEPM”, namely PG1, is a stable peptide that can be obtained at higher concentration after gastro-intestinal digestions (GID) of buffalo ice-cream (BIC). It owns potent vascular effect in counteract the effects of angiotensin II-evoked vasoconstriction and high blood pressure levels. Its effects are mediated by the inhibitory effect on AT1 receptor leading to a downregulation of p-ERK½/Rac1-GTP and consequent reduction of oxidative stress. Conclusions: These results strongly candidate PG1, as a novel bioactive peptide for the prevention and management of hypertension, thus expanding the armamentarium of preventive strategies aimed at reducing the incidence and progression of hypertension and its related cardiovascular complications.
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Affiliation(s)
- Albino Carrizzo
- Department of Medicine and Surgery, University of Salerno, 84081 Baronissi, SA, Italy; (A.C.); (M.C.); (M.A.); (P.D.P.)
- IRCCS Neuromed, Vascular Pathophysiology Unit, 86077 Pozzilli, IS, Italy; (A.D.); (E.V.)
| | | | - Giacomo Pepe
- Department of Pharmacy, University of Salerno, 84084 Fisciano, SA, Italy; (M.G.B.); (G.P.); (V.D.S.)
| | - Kasper K. Sørensen
- Department of Chemistry, University of Copenhagen, 1870 Frederiksberg, Denmark;
- Biomolecular Nanoscale Engineering Center, University of Copenhagen, 1870 Frederiksberg, Denmark
| | - Michele Ciccarelli
- Department of Medicine and Surgery, University of Salerno, 84081 Baronissi, SA, Italy; (A.C.); (M.C.); (M.A.); (P.D.P.)
| | - Veronica Di Sarno
- Department of Pharmacy, University of Salerno, 84084 Fisciano, SA, Italy; (M.G.B.); (G.P.); (V.D.S.)
| | - Antonio Damato
- IRCCS Neuromed, Vascular Pathophysiology Unit, 86077 Pozzilli, IS, Italy; (A.D.); (E.V.)
| | - Eleonora Venturini
- IRCCS Neuromed, Vascular Pathophysiology Unit, 86077 Pozzilli, IS, Italy; (A.D.); (E.V.)
| | - Anna Borrelli
- University Hospital “San Giovanni di Dio e Ruggi D’Aragona”, via S. Leonardo, 1, 84131 Salerno, SA, Italy;
| | - Simona Musella
- European Biomedical Research Institute of Salerno, 84131 Salerno, SA, Italy;
| | - Mario Abate
- Department of Medicine and Surgery, University of Salerno, 84081 Baronissi, SA, Italy; (A.C.); (M.C.); (M.A.); (P.D.P.)
| | - Paola Di Pietro
- Department of Medicine and Surgery, University of Salerno, 84081 Baronissi, SA, Italy; (A.C.); (M.C.); (M.A.); (P.D.P.)
| | - Carmine Ostacolo
- Department of Pharmacy, University of Naples Federico II, 80131 Napoli, NA, Italy;
| | - Pietro Campiglia
- Department of Pharmacy, University of Salerno, 84084 Fisciano, SA, Italy; (M.G.B.); (G.P.); (V.D.S.)
- Correspondence: (P.C.); (C.V.); Tel.: +39-089-969242 (P.C.); +39-08-996-5069 (C.V.)
| | - Carmine Vecchione
- Department of Medicine and Surgery, University of Salerno, 84081 Baronissi, SA, Italy; (A.C.); (M.C.); (M.A.); (P.D.P.)
- IRCCS Neuromed, Vascular Pathophysiology Unit, 86077 Pozzilli, IS, Italy; (A.D.); (E.V.)
- Correspondence: (P.C.); (C.V.); Tel.: +39-089-969242 (P.C.); +39-08-996-5069 (C.V.)
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Molitor M, Rudi WS, Garlapati V, Finger S, Schüler R, Kossmann S, Lagrange J, Nguyen TS, Wild J, Knopp T, Karbach SH, Knorr M, Ruf W, Münzel T, Wenzel P. Nox2+ myeloid cells drive vascular inflammation and endothelial dysfunction in heart failure after myocardial infarction via angiotensin II receptor type 1. Cardiovasc Res 2021; 117:162-177. [PMID: 32077922 DOI: 10.1093/cvr/cvaa042] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 01/31/2020] [Accepted: 02/14/2020] [Indexed: 12/20/2022] Open
Abstract
AIMS Heart failure (HF) ensuing myocardial infarction (MI) is characterized by the initiation of a systemic inflammatory response. We aimed to elucidate the impact of myelomonocytic cells and their activation by angiotensin II on vascular endothelial function in a mouse model of HF after MI. METHODS AND RESULTS HF was induced in male C57BL/6J mice by permanent ligation of the left anterior descending coronary artery. Compared to sham, HF mice had significantly impaired endothelial function accompanied by enhanced mobilization of Sca-1+c-Kit+ haematopoietic stem cells and Sca-1-c-Kit+ common myeloid and granulocyte-macrophage progenitors in the bone marrow as well as increased vascular infiltration of CD11b+Ly6G-Ly6Chigh monocytes and accumulation of CD11b+ F4/80+ macrophages, assessed by flow cytometry. Using mice with Cre-inducible expression of diphtheria toxin receptor in myeloid cells, we selectively depleted lysozyme M+ myelomonocytic cells for 10 days starting 28 days after MI. While the cardiac phenotype remained unaltered until 38 days post-MI, myeloid cell depletion attenuated vascular accumulation of Nox2+CD45+ cells, endothelial dysfunction, oxidative stress, and vascular expression of adhesion molecules and angiotensin II receptor type 1 (AT1R). Pharmacological blockade of this receptor for 4 weeks did not significantly alter cardiac function, but mimicked the effects of myeloid cell depletion: telmisartan (20 mg/kg/day, fed to C57BL/6J mice) diminished bone marrow myelopoesis and myeloid reactive oxygen species production, attenuated endothelial leucocyte rolling and vascular accumulation of CD11b+Ly6G-Ly6Chigh monocytes and macrophages, resulting in improved vascular function with less abundance of Nox2+CD45+ cells. CONCLUSION Endothelial dysfunction in HF ensuing MI is mediated by inflammatory Nox2+ myeloid cells infiltrating the vessel wall that can be targeted by AT1R blockade.
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Affiliation(s)
- Michael Molitor
- Center for Thrombosis and Haemostasis, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
- Department of Cardiology, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Rhine-Main, Germany
| | - Wolf-Stephan Rudi
- Center for Thrombosis and Haemostasis, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
- Department of Cardiology, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Rhine-Main, Germany
| | - Venkata Garlapati
- Center for Thrombosis and Haemostasis, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Rhine-Main, Germany
| | - Stefanie Finger
- Center for Thrombosis and Haemostasis, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
| | - Rebecca Schüler
- Center for Thrombosis and Haemostasis, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
- Institute for Molecular Medicine, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
| | - Sabine Kossmann
- Center for Thrombosis and Haemostasis, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
- The Heart Research Institute, 7 Eliza Street, Newtown, NSW 2042, Australia
| | - Jeremy Lagrange
- Center for Thrombosis and Haemostasis, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
| | - Thanh Son Nguyen
- Center for Thrombosis and Haemostasis, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
| | - Johannes Wild
- Center for Thrombosis and Haemostasis, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
- Department of Cardiology, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Rhine-Main, Germany
| | - Tanja Knopp
- Center for Thrombosis and Haemostasis, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
- Institute for Molecular Medicine, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
| | - Susanne H Karbach
- Center for Thrombosis and Haemostasis, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
- Department of Cardiology, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Rhine-Main, Germany
| | - Maike Knorr
- Center for Thrombosis and Haemostasis, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
- Department of Cardiology, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
| | - Wolfram Ruf
- Center for Thrombosis and Haemostasis, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Rhine-Main, Germany
- Scripps Research Institute, La Jolla, CA, USA
| | - Thomas Münzel
- Center for Thrombosis and Haemostasis, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
- Department of Cardiology, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Rhine-Main, Germany
| | - Philip Wenzel
- Center for Thrombosis and Haemostasis, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
- Department of Cardiology, University Medical Center Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Rhine-Main, Germany
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Durrant TN, Hers I. PI3K inhibitors in thrombosis and cardiovascular disease. Clin Transl Med 2020; 9:8. [PMID: 32002690 PMCID: PMC6992830 DOI: 10.1186/s40169-020-0261-6] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 01/13/2020] [Indexed: 12/15/2022] Open
Abstract
Phosphoinositide 3-kinases (PI3Ks) are lipid kinases that regulate important intracellular signalling and vesicle trafficking events via the generation of 3-phosphoinositides. Comprising eight core isoforms across three classes, the PI3K family displays broad expression and function throughout mammalian tissues, and the (patho)physiological roles of these enzymes in the cardiovascular system present the PI3Ks as potential therapeutic targets in settings such as thrombosis, atherosclerosis and heart failure. This review will discuss the PI3K enzymes and their roles in cardiovascular physiology and disease, with a particular focus on platelet function and thrombosis. The current progress and future potential of targeting the PI3K enzymes for therapeutic benefit in cardiovascular disease will be considered, while the challenges of developing drugs against these master cellular regulators will be discussed.
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Affiliation(s)
- Tom N Durrant
- Department of Chemistry, University of Oxford, Oxford, OX1 3QZ, UK.
| | - Ingeborg Hers
- School of Physiology, Pharmacology and Neuroscience, Biomedical Sciences Building, University Walk, Bristol, BS8 1TD, UK.
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20
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Yu Q, Li W, Jin R, Yu S, Xie D, Zheng X, Zhong W, Cheng X, Hu S, Li M, Zheng Q, Li G, Song Z. PI3Kγ (Phosphoinositide 3-Kinase γ) Regulates Vascular Smooth Muscle Cell Phenotypic Modulation and Neointimal Formation Through CREB (Cyclic AMP-Response Element Binding Protein)/YAP (Yes-Associated Protein) Signaling. Arterioscler Thromb Vasc Biol 2020; 39:e91-e105. [PMID: 30651001 DOI: 10.1161/atvbaha.118.312212] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Objective- Vascular smooth muscle cells (VSMCs) phenotype modulation is critical for the resolution of vascular injury. Genetic and pharmacological inhibition of PI3Kγ (phosphoinositide 3-kinase γ) exerts anti-inflammatory and protective effects in multiple cardiovascular diseases. This study investigated the role of PI3Kγ and its downstream effector molecules in the regulation of VSMC phenotypic modulation and neointimal formation in response to vascular injury. Approach and Results- Increased expression of PI3Kγ was found in injured vessel wall as well in cultured, serum-activated wild-type VSMCs, accompanied by a reduction in the expression of calponin and SM22α, 2 differentiation markers of VSMCs. However, the injury-induced downregulation of calponin and SM22α was profoundly attenuated in PI3Kγ-/- mice. Pharmacological inhibition and short hairpin RNA knockdown of PI3Kγ (PI3Kγ-KD) markedly attenuated YAP (Yes-associated protein) expression and CREB (cyclic AMP-response element binding protein) activation but improved the downregulation of differentiation genes in cultured VSMCs accompanied by reduced cell proliferation and migration. Mechanistically, activated CREB upregulated YAP transcriptional expression through binding to its promoter. Ectopic expression of YAP strikingly repressed the expression of differentiation genes even in PI3Kγ-KD VSMCs. Moreover, established carotid artery ligation and chimeric mice models demonstrate that deletion of PI3Kγ in naïve PI3Kγ-/- mice as well as in chimeric mice lacking PI3Kγ either in bone marrow or vascular wall significantly reduced neointimal formation after injury. Conclusions- PI3Kγ controls phenotypic modulation of VSMCs by regulating transcription factor CREB activation and YAP expression. Modulating PI3Kγ signaling on local vascular wall may represent a new therapeutic approach to treat proliferative vascular disease.
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Affiliation(s)
- Qihong Yu
- From the Department of Hepatobiliary Surgery (Q.Y., D.X., X.Z., X.C., S.H., M.L., Q.Z., Z.S.), Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Li
- Departments of Gerontology (W.L.), Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Rong Jin
- Department of Neurosurgery, Louisiana State University Health Sciences Center, Shreveport (R.J., S.Y., G.L.).,and Department of Neurosurgery, Penn State Hershey Medical Center, Hershey, PA (R.J., W.Z., G.L.)
| | - Shiyong Yu
- Department of Neurosurgery, Louisiana State University Health Sciences Center, Shreveport (R.J., S.Y., G.L.).,Department of Cardiology, Xinqiao Hospital, Third Military Medical University, Chongqing, China (S.Y.)
| | - Dawei Xie
- From the Department of Hepatobiliary Surgery (Q.Y., D.X., X.Z., X.C., S.H., M.L., Q.Z., Z.S.), Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xichuan Zheng
- From the Department of Hepatobiliary Surgery (Q.Y., D.X., X.Z., X.C., S.H., M.L., Q.Z., Z.S.), Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Zhong
- and Department of Neurosurgery, Penn State Hershey Medical Center, Hershey, PA (R.J., W.Z., G.L.)
| | - Xiang Cheng
- From the Department of Hepatobiliary Surgery (Q.Y., D.X., X.Z., X.C., S.H., M.L., Q.Z., Z.S.), Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shaobo Hu
- From the Department of Hepatobiliary Surgery (Q.Y., D.X., X.Z., X.C., S.H., M.L., Q.Z., Z.S.), Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Min Li
- From the Department of Hepatobiliary Surgery (Q.Y., D.X., X.Z., X.C., S.H., M.L., Q.Z., Z.S.), Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qichang Zheng
- From the Department of Hepatobiliary Surgery (Q.Y., D.X., X.Z., X.C., S.H., M.L., Q.Z., Z.S.), Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Guohong Li
- Department of Neurosurgery, Louisiana State University Health Sciences Center, Shreveport (R.J., S.Y., G.L.).,and Department of Neurosurgery, Penn State Hershey Medical Center, Hershey, PA (R.J., W.Z., G.L.)
| | - Zifang Song
- From the Department of Hepatobiliary Surgery (Q.Y., D.X., X.Z., X.C., S.H., M.L., Q.Z., Z.S.), Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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21
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Esposito A, Viale G, Curigliano G. Safety, Tolerability, and Management of Toxic Effects of Phosphatidylinositol 3-Kinase Inhibitor Treatment in Patients With Cancer: A Review. JAMA Oncol 2019; 5:1347-1354. [PMID: 30920609 DOI: 10.1001/jamaoncol.2019.0034] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Importance The phosphatidylinositol 3-kinase (PI3K)/protein kinase B (AKT)/mammalian target of rapamycin (mTOR) signaling pathway, which regulates multiple cellular processes, including metabolism, proliferation, motility, growth, and survival, is one of the most frequently dysregulated pathways in human cancers. The PI3K/AKT/mTOR cascade can be aberrantly activated by multiple factors, including diverse oncogenic genomic alterations in PIK3CA, PIK3R1, PTEN, AKT, TSC1, TSC2, LKB1, MTOR, and other critical genes, which can be used as targets for anticancer therapy. Limited single-agent activity, high levels of toxic effects, and a lack of predictive biomarkers for treatment selection have all been major barriers to the clinical development of these compounds. Many adverse effects are uncommon and have poorly understood mechanisms. An understanding of these toxic effects, as well as a better definition of management guidelines, will be important because more PI3K inhibitors are under development and may soon be incorporated into routine practice. Observations A search of PubMed, draft prescribing information of currently approved PI3K inhibitors, European Medical Association and US Food and Drug Administration product information, and expert panel opinion on the management of the prominent toxic effects of this class of agents was conducted on August 29, 2018. This article provides an overview of the main toxic effects of PI3K inhibitors reported in clinical trials and a summary of recommendations for identification and management of treatment-emergent toxic effects, including hypoglycemia, cutaneous reactions, pneumonitis, neuropsychiatric effects, hepatotoxic effects, diarrhea, and colitis. Overall, the clinical development of most PI3K inhibitors has been discontinued owing to insufficient activity, problematic toxic effects, and the absence of biomarkers correlated with clinical activity. Knowledge of the isoforms and their distribution in tissue can help clinicians anticipate toxic effects. Notably, novel, more specific inhibitors for individual isoforms of PI3K showed therapeutic activity with improved toxic effect profiles compared with non-isoform-selective agents. Conclusions and Relevance An improved understanding of the complexities of the main toxic-effect mechanisms and their management might open viable paths to advancing PI3K inhibitors from clinical studies to new standard-of-care treatments.
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Affiliation(s)
- Angela Esposito
- Division of Early Drug Development for Innovative Therapies, IEO, European Institute of Oncology, IRCCS Milano, Milan, Italy
| | - Giulia Viale
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| | - Giuseppe Curigliano
- Division of Early Drug Development for Innovative Therapies, IEO, European Institute of Oncology, IRCCS Milano, Milan, Italy.,Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
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22
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Function, Regulation and Biological Roles of PI3Kγ Variants. Biomolecules 2019; 9:biom9090427. [PMID: 31480354 PMCID: PMC6770443 DOI: 10.3390/biom9090427] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 08/14/2019] [Accepted: 08/15/2019] [Indexed: 12/19/2022] Open
Abstract
Phosphatidylinositide 3-kinase (PI3K) γ is the only class IB PI3K member playing significant roles in the G-protein-dependent regulation of cell signaling in health and disease. Originally found in the immune system, increasing evidence suggest a wide array of functions in the whole organism. PI3Kγ occur as two different heterodimeric variants: PI3Kγ (p87) and PI3Kγ (p101), which share the same p110γ catalytic subunit but differ in their associated non-catalytic subunit. Here we concentrate on specific PI3Kγ features including its regulation and biological functions. In particular, the roles of its non-catalytic subunits serving as the main regulators determining specificity of class IB PI3Kγ enzymes are highlighted.
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23
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A class of highly selective inhibitors bind to an active state of PI3Kγ. Nat Chem Biol 2019; 15:348-357. [DOI: 10.1038/s41589-018-0215-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 12/12/2018] [Indexed: 12/20/2022]
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24
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Maffei A, Lembo G, Carnevale D. PI3Kinases in Diabetes Mellitus and Its Related Complications. Int J Mol Sci 2018; 19:ijms19124098. [PMID: 30567315 PMCID: PMC6321267 DOI: 10.3390/ijms19124098] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 12/13/2018] [Accepted: 12/15/2018] [Indexed: 02/07/2023] Open
Abstract
Recent studies have shown that phosphoinositide 3-kinases (PI3Ks) have become the target of many pharmacological treatments, both in clinical trials and in clinical practice. PI3Ks play an important role in glucose regulation, and this suggests their possible involvement in the onset of diabetes mellitus. In this review, we gather our knowledge regarding the effects of PI3K isoforms on glucose regulation in several organs and on the most clinically-relevant complications of diabetes mellitus, such as cardiomyopathy, vasculopathy, nephropathy, and neurological disease. For instance, PI3K α has been proven to be protective against diabetes-induced heart failure, while PI3K γ inhibition is protective against the disease onset. In vessels, PI3K γ can generate oxidative stress, while PI3K β inhibition is anti-thrombotic. Finally, we describe the role of PI3Ks in Alzheimer’s disease and ADHD, discussing the relevance for diabetic patients. Given the high prevalence of diabetes mellitus, the multiple effects here described should be taken into account for the development and validation of drugs acting on PI3Ks.
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Affiliation(s)
- Angelo Maffei
- Department of Angiocardioneurology and Translational Medicine, IRCCS Neuromed, 86077 Pozzilli, Italy.
| | - Giuseppe Lembo
- Department of Angiocardioneurology and Translational Medicine, IRCCS Neuromed, 86077 Pozzilli, Italy.
- Department of Molecular Medicine, "Sapienza" University of Rome, 00161 Rome, Italy.
| | - Daniela Carnevale
- Department of Angiocardioneurology and Translational Medicine, IRCCS Neuromed, 86077 Pozzilli, Italy.
- Department of Molecular Medicine, "Sapienza" University of Rome, 00161 Rome, Italy.
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Yu Q, Li W, Xie D, Zheng X, Huang T, Xue P, Guo B, Gao Y, Zhang C, Sun P, Li M, Wang G, Cheng X, Zheng Q, Song Z. PI3Kγ promotes vascular smooth muscle cell phenotypic modulation and transplant arteriosclerosis via a SOX9-dependent mechanism. EBioMedicine 2018; 36:39-53. [PMID: 30241919 PMCID: PMC6197754 DOI: 10.1016/j.ebiom.2018.09.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 08/31/2018] [Accepted: 09/10/2018] [Indexed: 12/11/2022] Open
Abstract
Background Transplant arteriosclerosis (TA) remains the major cause of chronic graft failure in solid organ transplantation. The phenotypic modulation of vascular smooth muscle cells (VSMCs) is a key event for the initiation and progression of neointimal formation and TA. This study aims to explore the role and underlying mechanism of phosphoinositide 3-kinases γ (PI3Kγ) in VSMC phenotypic modulation and TA. Methods The rat model of aortic transplantation was established to detect PI3Kγ expression and its role in neointimal formation and vascular remodeling in vivo. PI3Kγ shRNA transfection was employed to knockdown PI3Kγ gene. Aortic VSMCs was cultured and treated with TNF-α to explore the role and molecular mechanism of PI3Kγ in VSMC phenotypic modulation. Findings Activated PI3Kγ/p-Akt signaling was observed in aortic allografts and in TNF-α-treated VSMCs. Lentivirus-mediated shRNA transfection effectively inhibited PI3Kγ expression in medial VSMCs while restoring the expression of VSMC contractile genes, associated with impaired neointimal formation in aortic allografts. In cultured VSMCs, PI3Kγ blockade with pharmacological inhibitor or genetic knockdown markedly abrogated TNF-α-induced downregulation of VSMC contractile genes and increase in cellular proliferation and migration. Moreover, SOX9 located in nucleus competitively inhibited the interaction of Myocardin and SRF, while PI3Kγ inhibition robustly reduced SOX9 expression and its nuclear translocation and repaired the Myocardin/SRF association. Interpretation These results suggest that PI3Kγ plays a critical role in VSMC phenotypic modulation via a SOX9-dependent mechanism. Therefore, PI3Kγ in VSMCs may represent a promising therapeutic target for the treatment of TA. Fund National Natural Science Foundation of China.
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Affiliation(s)
- Qihong Yu
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Li
- Departments of Gerontology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Dawei Xie
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xichuan Zheng
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tong Huang
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ping Xue
- Departments of Gerontology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bing Guo
- Department of Hepatology and Oncology, Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY, USA
| | - Yang Gao
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chen Zhang
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ping Sun
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Min Li
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Guoliang Wang
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiang Cheng
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qichang Zheng
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Zifang Song
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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26
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Yu X, Xia Y, Zeng L, Zhang X, Chen L, Yan S, Zhang R, Zhao C, Zeng Z, Shu Y, Huang S, Lei J, Yuan C, Zhang L, Feng Y, Liu W, Huang B, Zhang B, Luo W, Wang X, Zhang H, Haydon RC, Luu HH, He TC, Gan H. A blockade of PI3Kγ signaling effectively mitigates angiotensin II-induced renal injury and fibrosis in a mouse model. Sci Rep 2018; 8:10988. [PMID: 30030497 PMCID: PMC6054654 DOI: 10.1038/s41598-018-29417-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 06/06/2018] [Indexed: 12/27/2022] Open
Abstract
Chronic kidney disease (CKD) poses a formidable challenge for public healthcare worldwide as vast majority of patients with CKD are also at risk of accelerated cardiovascular disease and death. Renal fibrosis is the common manifestation of CKD that usually leads to end-stage renal disease although the molecular events leading to chronic renal fibrosis and eventually chronic renal failure remain to be fully understood. Nonetheless, emerging evidence suggests that an aberrant activation of PI3Kγ signaling may play an important role in regulating profibrotic phenotypes. Here, we investigate whether a blockade of PI3Kγ signaling exerts any beneficial effect on alleviating kidney injury and renal fibrosis. Using a mouse model of angiotensin II (Ang II)-induced renal damage, we demonstrate that PI3Kγ inhibitor AS605240 effectively mitigates Ang II-induced increases in serum creatinine and blood urea nitrogen, renal interstitial collagen deposition, the accumulation of ECM proteins and the expression of α-Sma and fibrosis-related genes in vivo. Mechanistically, we reveal that AS605240 effectively inhibits Ang II-induced cell proliferation and phosphorylation of Akt in fibroblast cells. Furthermore, we demonstrate that Ang II-upregulated expression of IL-6, Tnf-α, IL-1β and Tgf-β1 is significantly attenuated in the mice treated with AS605240. Taken together, our results demonstrate that PI3Kγ may function as a critical mediator of Ang II-induced renal injury and fibrosis. It is thus conceivable that targeted inhibition of PI3Kγ signaling may constitute a novel therapeutic approach to the clinical management of renal fibrosis, renal hypertension and/or CKD.
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Affiliation(s)
- Xinyi Yu
- Departments of Nephrology, Orthopaedic Surgery, Cardiology, General Surgery, and Clinical Laboratory Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
| | - Yunfeng Xia
- Departments of Nephrology, Orthopaedic Surgery, Cardiology, General Surgery, and Clinical Laboratory Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Liyi Zeng
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
- Department of Infection Control, Zhuzhou Central Hospital, and the Affiliated Zhuzhou Hospital of Xiangya Medical College of Central South University, Zhuzhou, China
| | - Xi Zhang
- Departments of Nephrology, Orthopaedic Surgery, Cardiology, General Surgery, and Clinical Laboratory Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Liqun Chen
- Departments of Nephrology, Orthopaedic Surgery, Cardiology, General Surgery, and Clinical Laboratory Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
| | - Shujuan Yan
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
- Ministry of Education Key Laboratory of Diagnostic Medicine and School of Laboratory Medicine, and the Affiliated Hospitals of Chongqing Medical University, Chongqing, 400016, China
| | - Ruyi Zhang
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
- Ministry of Education Key Laboratory of Diagnostic Medicine and School of Laboratory Medicine, and the Affiliated Hospitals of Chongqing Medical University, Chongqing, 400016, China
| | - Chen Zhao
- Departments of Nephrology, Orthopaedic Surgery, Cardiology, General Surgery, and Clinical Laboratory Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
| | - Zongyue Zeng
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
- Ministry of Education Key Laboratory of Diagnostic Medicine and School of Laboratory Medicine, and the Affiliated Hospitals of Chongqing Medical University, Chongqing, 400016, China
| | - Yi Shu
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
- Ministry of Education Key Laboratory of Diagnostic Medicine and School of Laboratory Medicine, and the Affiliated Hospitals of Chongqing Medical University, Chongqing, 400016, China
| | - Shifeng Huang
- Departments of Nephrology, Orthopaedic Surgery, Cardiology, General Surgery, and Clinical Laboratory Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
| | - Jiayan Lei
- Departments of Nephrology, Orthopaedic Surgery, Cardiology, General Surgery, and Clinical Laboratory Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
| | - Chengfu Yuan
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
- Department of Biochemistry and Molecular Biology, China Three Gorges University School of Medicine, Yichang, 443002, China
| | - Linghuan Zhang
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
- Ministry of Education Key Laboratory of Diagnostic Medicine and School of Laboratory Medicine, and the Affiliated Hospitals of Chongqing Medical University, Chongqing, 400016, China
| | - Yixiao Feng
- Departments of Nephrology, Orthopaedic Surgery, Cardiology, General Surgery, and Clinical Laboratory Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
| | - Wei Liu
- Departments of Nephrology, Orthopaedic Surgery, Cardiology, General Surgery, and Clinical Laboratory Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
| | - Bo Huang
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
- Department of Infection Control, Zhuzhou Central Hospital, and the Affiliated Zhuzhou Hospital of Xiangya Medical College of Central South University, Zhuzhou, China
- Department of Clinical Laboratory Medicine, the Second Affiliated Hospital of Nanchang University, Nanchang, 330031, China
| | - Bo Zhang
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
- Key Laboratory of Orthopaedic Surgery of Gansu Province and the Department of Orthopaedic Surgery, the Second Hospital of Lanzhou University, Lanzhou, 730030, China
| | - Wenping Luo
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
- Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, and the Affiliated Hospital of Stomatology of Chongqing Medical University, Chongqing, 401147, China
| | - Xi Wang
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
- Ministry of Education Key Laboratory of Diagnostic Medicine and School of Laboratory Medicine, and the Affiliated Hospitals of Chongqing Medical University, Chongqing, 400016, China
| | - Hongmei Zhang
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
- Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, and the Affiliated Hospital of Stomatology of Chongqing Medical University, Chongqing, 401147, China
| | - Rex C Haydon
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
| | - Hue H Luu
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
| | - Tong-Chuan He
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA.
| | - Hua Gan
- Departments of Nephrology, Orthopaedic Surgery, Cardiology, General Surgery, and Clinical Laboratory Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
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27
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Vascular endothelium dysfunction: a conservative target in metabolic disorders. Inflamm Res 2018; 67:391-405. [PMID: 29372262 DOI: 10.1007/s00011-018-1129-8] [Citation(s) in RCA: 97] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2017] [Revised: 12/27/2017] [Accepted: 01/03/2018] [Indexed: 12/17/2022] Open
Abstract
AIM Vascular endothelium plays a role in capillary transport of nutrients and drugs and regulates angiogenesis, homeostasis, as well as vascular tone and permeability as a major regulator of local vascular homeostasis. The present study has been designed to investigate the role of endothelium in metabolic disorders. METHODS The endothelium maintains the balance between vasodilatation and vasoconstriction, procoagulant and anticoagulant, prothrombotic and antithrombotic mechanisms. RESULTS Diabetes mellitus causes the activation of aldose reductase, polyol pathway and advanced glycation-end-product formation that collectively affect the phosphorylation status and expression of endothelial nitric oxide synthatase (eNOS) and causes vascular endothelium dysfunction. Elevated homocysteine levels have been associated with increase in LDL oxidation, generation of hydrogen peroxides, superoxide anions that increased oxidative degradation of nitric oxide. Hyperhomocysteinemia has been reported to increase the endogenous competitive inhibitors of eNOS viz L-N-monomethyl arginine (L-NMMA) and asymmetric dimethyl arginine (ADMA) that may contribute to vascular endothelial dysfunction. Hypercholesterolemia stimulates oxidation of LDL cholesterol, release of endothelins, and generation of ROS. The increased cholesterol and triglyceride level and decreased protective HDL level, decreases the activity and expression of eNOS and disrupts the integrity of vascular endothelium, due to oxidative stress. Hypertension also stimulates release of endothelins, vasoconstrictor prostanoids, angiotensin II, inflammatory cytokines, xanthine oxidase and, thereby, reduces bioavailability of nitric oxide. CONCLUSION Thus, the cellular and molecular mechanisms underlying diabetes mellitus, hyperhomocysteinemia, hypercholesterolemia hypertension and hyperuricemia leads to an imbalance of phosphorylation and dephosphorylation status of lipid and protein kinase that cause modulation of vascular endothelial L-arginine/nitric oxide synthetase (eNOS), to produce vascular endothelium dysfunction.
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28
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Kossmann S, Lagrange J, Jäckel S, Jurk K, Ehlken M, Schönfelder T, Weihert Y, Knorr M, Brandt M, Xia N, Li H, Daiber A, Oelze M, Reinhardt C, Lackner K, Gruber A, Monia B, Karbach SH, Walter U, Ruggeri ZM, Renné T, Ruf W, Münzel T, Wenzel P. Platelet-localized FXI promotes a vascular coagulation-inflammatory circuit in arterial hypertension. Sci Transl Med 2018; 9:9/375/eaah4923. [PMID: 28148841 DOI: 10.1126/scitranslmed.aah4923] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 07/05/2016] [Accepted: 12/12/2016] [Indexed: 01/05/2023]
Abstract
Multicellular interactions of platelets, leukocytes, and the blood vessel wall support coagulation and precipitate arterial and venous thrombosis. High levels of angiotensin II cause arterial hypertension by a complex vascular inflammatory pathway that requires leukocyte recruitment and reactive oxygen species production and is followed by vascular dysfunction. We delineate a previously undescribed, proinflammatory coagulation-vascular circuit that is a major regulator of vascular tone, blood pressure, and endothelial function. In mice with angiotensin II-induced hypertension, tissue factor was up-regulated, as was thrombin-dependent endothelial cell vascular cellular adhesion molecule 1 expression and integrin αMβ2- and platelet-dependent leukocyte adhesion to arterial vessels. The resulting vascular inflammation and dysfunction was mediated by activation of thrombin-driven factor XI (FXI) feedback, independent of factor XII. The FXI receptor glycoprotein Ibα on platelets was required for this thrombin feedback activation in angiotensin II-infused mice. Inhibition of FXI synthesis with an antisense oligonucleotide was sufficient to prevent thrombin propagation on platelets, vascular leukocyte infiltration, angiotensin II-induced endothelial dysfunction, and arterial hypertension in mice and rats. Antisense oligonucleotide against FXI also reduced the increased blood pressure and attenuated vascular and kidney dysfunction in rats with established arterial hypertension. Further, platelet-localized thrombin generation was amplified in an FXI-dependent manner in patients with uncontrolled arterial hypertension, suggesting that platelet-localized thrombin generation may serve as an inflammatory marker of high blood pressure. Our results outline a coagulation-inflammation circuit that promotes vascular dysfunction, and highlight the possible utility of FXI-targeted anticoagulants in treating hypertension, beyond their application as antithrombotic agents in cardiovascular disease.
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Affiliation(s)
- Sabine Kossmann
- Center for Thrombosis and Hemostasis Mainz, University Medical Center Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany.,Center for Cardiology, Cardiology I, University Medical Center Mainz, 55131 Mainz, Germany
| | - Jeremy Lagrange
- Center for Thrombosis and Hemostasis Mainz, University Medical Center Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany
| | - Sven Jäckel
- Center for Thrombosis and Hemostasis Mainz, University Medical Center Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany
| | - Kerstin Jurk
- Center for Thrombosis and Hemostasis Mainz, University Medical Center Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany
| | - Moritz Ehlken
- Center for Thrombosis and Hemostasis Mainz, University Medical Center Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany.,Center for Cardiology, Cardiology I, University Medical Center Mainz, 55131 Mainz, Germany
| | - Tanja Schönfelder
- Center for Thrombosis and Hemostasis Mainz, University Medical Center Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany
| | - Yvonne Weihert
- Center for Cardiology, Cardiology I, University Medical Center Mainz, 55131 Mainz, Germany
| | - Maike Knorr
- Center for Cardiology, Cardiology I, University Medical Center Mainz, 55131 Mainz, Germany
| | - Moritz Brandt
- Center for Cardiology, Cardiology I, University Medical Center Mainz, 55131 Mainz, Germany
| | - Ning Xia
- Department of Pharmacology, University Medical Center Mainz, 55131 Mainz, Germany
| | - Huige Li
- Department of Pharmacology, University Medical Center Mainz, 55131 Mainz, Germany
| | - Andreas Daiber
- Center for Cardiology, Cardiology I, University Medical Center Mainz, 55131 Mainz, Germany
| | - Matthias Oelze
- Center for Cardiology, Cardiology I, University Medical Center Mainz, 55131 Mainz, Germany
| | - Christoph Reinhardt
- Center for Thrombosis and Hemostasis Mainz, University Medical Center Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany
| | - Karl Lackner
- Institute of Clinical Chemistry and Laboratory Medicine, University Medical Center Mainz, 55131 Mainz, Germany
| | - Andras Gruber
- Department of Biomedical Engineering, Oregon Health and Science University, 3303 Southwest Bond Avenue, CH13B, Portland, OR 97239, USA.,Aronora Inc., 4640 Southwest Macadam Avenue, Suite 200A, Portland, OR 97239, USA
| | - Brett Monia
- Ionis Pharmaceuticals Inc., 2855 Gazelle Court, Carlsbad, CA 92010, USA
| | - Susanne H Karbach
- Center for Cardiology, Cardiology I, University Medical Center Mainz, 55131 Mainz, Germany
| | - Ulrich Walter
- Center for Thrombosis and Hemostasis Mainz, University Medical Center Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany
| | - Zaverio M Ruggeri
- Department of Molecular and Experimental Medicine, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Thomas Renné
- Department of Molecular Medicine and Surgery, L1:00, Karolinska Institutet, SE-171 71 Stockholm, Sweden.,Institute of Clinical Chemistry and Laboratory Medicine, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany
| | - Wolfram Ruf
- Center for Thrombosis and Hemostasis Mainz, University Medical Center Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany.,Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, CA 92037, USA.,DZHK (German Center for Cardiovascular Research), Partner Site Rhine Main, University Medical Center Mainz, 55131 Mainz, Germany
| | - Thomas Münzel
- Center for Cardiology, Cardiology I, University Medical Center Mainz, 55131 Mainz, Germany.,DZHK (German Center for Cardiovascular Research), Partner Site Rhine Main, University Medical Center Mainz, 55131 Mainz, Germany
| | - Philip Wenzel
- Center for Thrombosis and Hemostasis Mainz, University Medical Center Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany. .,Center for Cardiology, Cardiology I, University Medical Center Mainz, 55131 Mainz, Germany.,DZHK (German Center for Cardiovascular Research), Partner Site Rhine Main, University Medical Center Mainz, 55131 Mainz, Germany
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Fernández-Alfonso MS, Somoza B, Tsvetkov D, Kuczmanski A, Dashwood M, Gil-Ortega M. Role of Perivascular Adipose Tissue in Health and Disease. Compr Physiol 2017; 8:23-59. [PMID: 29357124 DOI: 10.1002/cphy.c170004] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Perivascular adipose tissue (PVAT) is cushion of fat tissue surrounding blood vessels, which is phenotypically different from other adipose tissue depots. PVAT is composed of adipocytes and stromal vascular fraction, constituted by different populations of immune cells, endothelial cells, and adipose-derived stromal cells. It expresses and releases an important number of vasoactive factors with paracrine effects on vascular structure and function. In healthy individuals, these factors elicit a net anticontractile and anti-inflammatory paracrine effect aimed at meeting hemodynamic and metabolic demands of specific organs and regions of the body. Pathophysiological situations, such as obesity, diabetes or hypertension, induce changes in its amount and in the expression pattern of vasoactive factors leading to a PVAT dysfunction in which the beneficial paracrine influence of PVAT is shifted to a pro-oxidant, proinflammatory, contractile, and trophic environment leading to functional and structural cardiovascular alterations and cardiovascular disease. Many different PVATs surrounding a variety of blood vessels have been described and exhibit regional differences. Both protective and deleterious influence of PVAT differs regionally depending on the specific vascular bed contributing to variations in the susceptibility of arteries and veins to vascular disease. PVAT therefore, might represent a novel target for pharmacological intervention in cardiovascular disease. © 2018 American Physiological Society. Compr Physiol 8:23-59, 2018.
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Affiliation(s)
| | - Beatriz Somoza
- Departamento de Ciencias Farmacéuticas y de la Salud, Facultad de Farmacia, Universidad CEU-San Pablo, Madrid, Spain
| | - Dmitry Tsvetkov
- Department of Anestesiology, Perioperative and Pain Medicine, HELIOS Klinikum, Berlin-Buch GmbH, Germany.,Institute of Experimental and Clinical Pharmacology and Toxicology, Department of Pharmacology and Experimental Therapy, Eberhard Karls University Hospitals and Clinics, and Interfaculty Center of Pharmacogenomics and Drug Research, Tübingen, Germany
| | - Artur Kuczmanski
- Department of Anestesiology, Perioperative and Pain Medicine, HELIOS Klinikum, Berlin-Buch GmbH, Germany
| | - Mick Dashwood
- Royal Free Hospital Campus, University College Medical School, London, United Kingdom
| | - Marta Gil-Ortega
- Departamento de Ciencias Farmacéuticas y de la Salud, Facultad de Farmacia, Universidad CEU-San Pablo, Madrid, Spain
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30
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Li KC, Yu SH, Zhuge BZ. PIK3CG single nucleotide polymorphisms are associated with poor responsiveness to clopidogrel and increased risk of ischemia in patients with coronary heart disease. Medicine (Baltimore) 2017; 96:e7566. [PMID: 28885323 PMCID: PMC6392743 DOI: 10.1097/md.0000000000007566] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND This study explores the associations between PIK3CG single nucleotide polymorphisms (SNPs, rs1129293 and rs17398575) and patient responsiveness to clopidogrel to evaluate the risks of ischemia in patients with coronary heart disease (CHD). METHODS The study consisted of 513 CHD patients who received clopidogrel as part of antiplatelet therapy, after percutaneous coronary intervention. According to the patient responsiveness to clopidogrel, the subjects were assigned to either clopidogrel-resistant (CR) or clopidogrel-sensitive (CS) groups. CR group was determined by patients' platelet aggregation rate of ≥70% and poor responsiveness to clopidogrel, and CS group by patients' platelet aggregation rates of <70% and good responsiveness to clopidogrel. Polymerase chain reaction using TaqMan probe was employed to detect PIK3CG polymorphism. Haplotype and linkage disequilibrium analyses were performed. Prognosis analysis was performed using the Kaplan-Meier curve. RESULTS Significant difference was found in genotype and rs1129293 and rs17398575 allele frequency between the CR and CS groups. Haplotype analysis indicated that the frequency of TG allele was higher in the CR group compared with the CS group, and the frequency of CA allele was lower in the CR group compared with the CS group. Patients with rs1129293 CT + TT genotype and T allele, rs1129293 AG + GG genotype and G allele exhibited an increased CR risk. Logistic regression analysis determined hypertension history as an independent risk factor for CR. The Kaplan-Meier curve suggests that distribution curve of cumulative probability nonischemic events was different between patients with rs1129293 and rs17398575 alleles. Stable CHD patients with TT genotype of rs1129293 allele and GG genotype of rs17398575 allele showed poorer prognosis compared to those with other genotypes and patients with acute coronary syndromes. CONCLUSION A positive correlation may exist between PIK3CG SNPs (rs1129293 and rs17398575) and patients with poor responsiveness to clopidogrel. These findings show that this factor may contribute to an increased risk of ischemia in patients suffering from CHD.
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Affiliation(s)
- Ke-Cheng Li
- Department of Clinical Laboratory, People's Hospital of Rongcheng, Rongcheng
| | - Shu-Hong Yu
- Department of Blood Transfusion, Yantai Yuhuangding Hospital, Yantai
| | - Bao-Zhong Zhuge
- Department of Clinical Laboratory, Linyi People's Hospital, Linyi, P.R. China
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31
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Abstract
Receptor signaling relays on intracellular events amplified by secondary and tertiary messenger molecules. In cardiomyocytes and smooth muscle cells, cyclic AMP (cAMP) and subsequent calcium (Ca2+) fluxes are the best characterized receptor-regulated signaling events. However, most of receptors able to modify contractility and other intracellular responses signal through a variety of other messengers, and whether these signaling events are interconnected has long remained unclear. For example, the PI3K (phosphoinositide 3-kinase) pathway connected to the production of the lipid second messenger PIP3/PtdIns(3,4,5)P3 (phosphatidylinositol (3,4,5)-trisphosphate) is potentially involved in metabolic regulation, activation of hypertrophy, and survival pathways. Recent studies, highlighted in this review, started to interconnect PI3K pathway activation to Ca2+ signaling. This interdependency, by balancing contractility with metabolic control, is crucial for cells of the cardiovascular system and is emerging to play key roles in disease development. Better understanding of the interplay between Ca2+ and PI3K signaling is, thus, expected to provide new ground for therapeutic intervention. This review explores the emerging molecular mechanisms linking Ca2+ and PI3K signaling in health and disease.
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Affiliation(s)
- Alessandra Ghigo
- From the Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino, Italy (A.G., M. Li, E.H.); and INSERM U1048, I2MC and Université Toulouse III, France (M. Laffargue)
| | - Muriel Laffargue
- From the Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino, Italy (A.G., M. Li, E.H.); and INSERM U1048, I2MC and Université Toulouse III, France (M. Laffargue)
| | - Mingchuan Li
- From the Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino, Italy (A.G., M. Li, E.H.); and INSERM U1048, I2MC and Université Toulouse III, France (M. Laffargue)
| | - Emilio Hirsch
- From the Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino, Italy (A.G., M. Li, E.H.); and INSERM U1048, I2MC and Université Toulouse III, France (M. Laffargue).
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32
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Vecchione C, Villa F, Carrizzo A, Spinelli CC, Damato A, Ambrosio M, Ferrario A, Madonna M, Uccellatore A, Lupini S, Maciag A, Ryskalin L, Milanesi L, Frati G, Sciarretta S, Bellazzi R, Genovese S, Ceriello A, Auricchio A, Malovini A, Puca AA. A rare genetic variant of BPIFB4 predisposes to high blood pressure via impairment of nitric oxide signaling. Sci Rep 2017; 7:9706. [PMID: 28852218 PMCID: PMC5574984 DOI: 10.1038/s41598-017-10341-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 08/08/2017] [Indexed: 01/04/2023] Open
Abstract
BPIFB4 is associated with exceptional longevity: four single-nucleotide polymorphisms distinguish the wild-type form from a longevity-associated variant conferring positive effects on blood pressure. The effect of a rare variant (RV; allele frequency, 4%) on blood pressure is unknown. Here, we show that overexpression of RV-BPIFB4 in ex-vivo mouse vessels impairs phosphorylation of endothelial nitric oxide synthase (eNOS), blunting acetylcholine-evoked vasorelaxation; in vivo, virally mediated overexpression of RV-BPIFB4 increases blood pressure, an action absent in eNOS-deficient mice. In humans, we found RV carriers to have increased diastolic blood pressure, a finding that was more marked in subjects on anti-hypertensive medication; moreover, recombinant RV-BPIFB4 protein impaired eNOS function in ex-vivo human vessels. Thus, RV-BPIFB4 acts directly on blood pressure homeostasis and may represent a novel biomarker of vascular dysfunction and hypertension.
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Affiliation(s)
- Carmine Vecchione
- IRCCS Neuromed, 86077, Pozzilli (IS), Italy. .,Department of Medicine and Surgery, University of Salerno, Fisciano, 84084, (SA), Italy.
| | - Francesco Villa
- Cardiovascular Research Unit, IRCCS MultiMedica, 20099, Sesto San Giovanni (MI), Italy
| | | | | | | | | | - Anna Ferrario
- Institute of Biomedical Technologies, National Research Council, 20090, Segrate (MI), Italy
| | | | | | - Silvia Lupini
- University of Milan, Via Festa del Perdono, 20122, Milan, Italy
| | - Anna Maciag
- Cardiovascular Research Unit, IRCCS MultiMedica, 20099, Sesto San Giovanni (MI), Italy
| | - Larisa Ryskalin
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, 56126, Italy
| | - Luciano Milanesi
- Institute of Biomedical Technologies, National Research Council, 20090, Segrate (MI), Italy
| | - Giacomo Frati
- IRCCS Neuromed, 86077, Pozzilli (IS), Italy.,Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, 04100, Latina, Italy
| | - Sebastiano Sciarretta
- IRCCS Neuromed, 86077, Pozzilli (IS), Italy.,Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, 04100, Latina, Italy
| | - Riccardo Bellazzi
- Laboratory of Informatics and Systems Engineering for Clinical Research, Istituti Clinici Scientifici Maugeri, 27100, Pavia, Italy.,Department of Electrical, Computer and Biomedical Engineering, University of Pavia, Pavia, Italy
| | - Stefano Genovese
- Diabetes Endocrine and Metabolic Diseases Unit, IRCCS MultiMedica, 20099, Sesto San, Giovanni (MI), Italy
| | - Antonio Ceriello
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS) and Centro de Investigación Biomedica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Barcelona, Spain.,Department of Cardiovascular and Metabolic Diseases, IRCCS MultiMedica, 20099, Sesto San, Giovanni (MI), Italy
| | - Alberto Auricchio
- TIGEM (Telethon Institute of Genetics and Medicine), 80078, Pozzuoli, Italy.,Department of Translational Medicine, "Federico II" University, Napoli, Italy
| | - Alberto Malovini
- Laboratory of Informatics and Systems Engineering for Clinical Research, Istituti Clinici Scientifici Maugeri, 27100, Pavia, Italy
| | - Annibale Alessandro Puca
- Department of Medicine and Surgery, University of Salerno, Fisciano, 84084, (SA), Italy. .,Cardiovascular Research Unit, IRCCS MultiMedica, 20099, Sesto San Giovanni (MI), Italy.
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Oleuropein Protects Cardiomyocyte against Apoptosis via Activating the Reperfusion Injury Salvage Kinase Pathway In Vitro. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2017; 2017:2109018. [PMID: 28491103 PMCID: PMC5406737 DOI: 10.1155/2017/2109018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Revised: 02/27/2017] [Accepted: 03/21/2017] [Indexed: 01/04/2023]
Abstract
Oleuropein, the main glycoside present in olives, has been reported to have cardioprotective effect, but the exact mechanism has not been clearly elucidated. This study attempted to clarify the cardioprotective effect of oleuropein against simulated ischemia/reperfusion- (SI/R-) induced cardiomyocyte injury in vitro and further explore the underlying mechanism. Here we confirmed that oleuropein reduced the cell injury in neonatal rat cardiomyocyte induced by SI/R evidenced by decreasing MTT dye reduction and LDH activity in the culture medium. Meanwhile, the compound also inhibited reactive oxygen species excessive generation and stabilized mitochondrial membrane potential after SI/R. The flow cytometry assessment results indicated the inhibition of cellular apoptosis with oleuropein treatment. Furthermore, western blot analysis showed that oleuropein attenuated the expression of Cyt-C, c-caspase-3, and c-caspase-9, increased the Bcl-2/Bax ratio, and enhanced the phosphorylation of ERK1/2 and Akt after SI/R. However, the phosphorylation enhancement was partially abolished in the presence of LY294002 (PI3K inhibitor) and U0126 (ERK inhibitor). All these findings indicate that oleuropein has the protective potential against SI/R-induced injury and its protective effect may be partly due to the attenuation of apoptosis via the activation of the PI3K/Akt and ERK1/2 signaling pathways.
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Liu X, El-Mahdy MA, Boslett J, Varadharaj S, Hemann C, Abdelghany TM, Ismail RS, Little SC, Zhou D, Thuy LTT, Kawada N, Zweier JL. Cytoglobin regulates blood pressure and vascular tone through nitric oxide metabolism in the vascular wall. Nat Commun 2017; 8:14807. [PMID: 28393874 PMCID: PMC5394235 DOI: 10.1038/ncomms14807] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Accepted: 02/01/2017] [Indexed: 12/19/2022] Open
Abstract
The identity of the specific nitric oxide dioxygenase (NOD) that serves as the main in vivo regulator of O2-dependent NO degradation in smooth muscle remains elusive. Cytoglobin (Cygb) is a recently discovered globin expressed in fibroblasts and smooth muscle cells with unknown function. Cygb, coupled with a cellular reducing system, efficiently regulates the rate of NO consumption by metabolizing NO in an O2-dependent manner with decreased NO consumption in physiological hypoxia. Here we show that Cygb is a major regulator of NO degradation and cardiovascular tone. Knockout of Cygb greatly prolongs NO decay, increases vascular relaxation, and lowers blood pressure and systemic vascular resistance. We further demonstrate that downregulation of Cygb prevents angiotensin-mediated hypertension. Thus, Cygb has a critical role in the regulation of vascular tone and disease. We suggest that modulation of the expression and NOD activity of Cygb represents a strategy for the treatment of cardiovascular disease. The gaseous signalling molecule nitric oxide regulates vascular tone. Here, the authors show that nitric oxide is degraded by the enzyme cytoglobin in the vascular wall, and that mice lacking cytoglobin have reduced blood pressure and are less sensitive to angiotensin-mediated hypertension.
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Affiliation(s)
- Xiaoping Liu
- Davis Heart and Lung Research Institute and Division of Cardiovascular Medicine, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, Ohio 43210, USA
| | - Mohamed A El-Mahdy
- Davis Heart and Lung Research Institute and Division of Cardiovascular Medicine, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, Ohio 43210, USA
| | - James Boslett
- Davis Heart and Lung Research Institute and Division of Cardiovascular Medicine, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, Ohio 43210, USA
| | - Saradhadevi Varadharaj
- Davis Heart and Lung Research Institute and Division of Cardiovascular Medicine, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, Ohio 43210, USA
| | - Craig Hemann
- Davis Heart and Lung Research Institute and Division of Cardiovascular Medicine, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, Ohio 43210, USA
| | - Tamer M Abdelghany
- Davis Heart and Lung Research Institute and Division of Cardiovascular Medicine, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, Ohio 43210, USA
| | - Raed S Ismail
- Davis Heart and Lung Research Institute and Division of Cardiovascular Medicine, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, Ohio 43210, USA
| | - Sean C Little
- Davis Heart and Lung Research Institute and Division of Cardiovascular Medicine, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, Ohio 43210, USA
| | - Danlei Zhou
- Davis Heart and Lung Research Institute and Division of Cardiovascular Medicine, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, Ohio 43210, USA
| | - Le Thi Thanh Thuy
- Department of Hepatology, Graduate School of Medicine, Osaka City University, Asahimachi 1-4-3, Abenoku, Osaka 545-8585, Japan
| | - Norifumi Kawada
- Department of Hepatology, Graduate School of Medicine, Osaka City University, Asahimachi 1-4-3, Abenoku, Osaka 545-8585, Japan
| | - Jay L Zweier
- Davis Heart and Lung Research Institute and Division of Cardiovascular Medicine, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, Ohio 43210, USA
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Tykocki NR, Boerman EM, Jackson WF. Smooth Muscle Ion Channels and Regulation of Vascular Tone in Resistance Arteries and Arterioles. Compr Physiol 2017; 7:485-581. [PMID: 28333380 DOI: 10.1002/cphy.c160011] [Citation(s) in RCA: 222] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Vascular tone of resistance arteries and arterioles determines peripheral vascular resistance, contributing to the regulation of blood pressure and blood flow to, and within the body's tissues and organs. Ion channels in the plasma membrane and endoplasmic reticulum of vascular smooth muscle cells (SMCs) in these blood vessels importantly contribute to the regulation of intracellular Ca2+ concentration, the primary determinant of SMC contractile activity and vascular tone. Ion channels provide the main source of activator Ca2+ that determines vascular tone, and strongly contribute to setting and regulating membrane potential, which, in turn, regulates the open-state-probability of voltage gated Ca2+ channels (VGCCs), the primary source of Ca2+ in resistance artery and arteriolar SMCs. Ion channel function is also modulated by vasoconstrictors and vasodilators, contributing to all aspects of the regulation of vascular tone. This review will focus on the physiology of VGCCs, voltage-gated K+ (KV) channels, large-conductance Ca2+-activated K+ (BKCa) channels, strong-inward-rectifier K+ (KIR) channels, ATP-sensitive K+ (KATP) channels, ryanodine receptors (RyRs), inositol 1,4,5-trisphosphate receptors (IP3Rs), and a variety of transient receptor potential (TRP) channels that contribute to pressure-induced myogenic tone in resistance arteries and arterioles, the modulation of the function of these ion channels by vasoconstrictors and vasodilators, their role in the functional regulation of tissue blood flow and their dysfunction in diseases such as hypertension, obesity, and diabetes. © 2017 American Physiological Society. Compr Physiol 7:485-581, 2017.
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Affiliation(s)
- Nathan R Tykocki
- Department of Pharmacology, University of Vermont, Burlington, Vermont, USA
| | - Erika M Boerman
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri, USA
| | - William F Jackson
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, Michigan, USA
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Tsvetkov D, Shymanets A, Huang Y, Bucher K, Piekorz R, Hirsch E, Beer-Hammer S, Harteneck C, Gollasch M, Nürnberg B. Better Understanding of Phosphoinositide 3-Kinase (PI3K) Pathways in Vasculature: Towards Precision Therapy Targeting Angiogenesis and Tumor Blood Supply. BIOCHEMISTRY (MOSCOW) 2017; 81:691-9. [PMID: 27449615 DOI: 10.1134/s0006297916070051] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The intracellular PI3K-AKT-mTOR pathway is involved in regulation of numerous important cell processes including cell growth, differentiation, and metabolism. The PI3Kα isoform has received particular attention as a novel molecular target in gene therapy, since this isoform plays critical roles in tumor progression and tumor blood flow and angiogenesis. However, the role of PI3Kα and other class I isoforms, i.e. PI3Kβ, γ, δ, in the regulation of vascular tone and regional blood flow are largely unknown. We used novel isoform-specific PI3K inhibitors and mice deficient in both PI3Kγ and PI3Kδ (Pik3cg(-/-)/Pik3cd(-/-)) to define the putative contribution of PI3K isoform(s) to arterial vasoconstriction. Wire myography was used to measure isometric contractions of isolated murine mesenteric arterial rings. Phenylephrine-dependent contractions were inhibited by the pan PI3K inhibitors wortmannin (100 nM) and LY294002 (10 µM). These vasoconstrictions were also inhibited by the PI3Kα isoform inhibitors A66 (10 µM) and PI-103 (1 µM), but not by the PI3Kβ isoform inhibitor TGX 221 (100 nM). Pik3cg(-/-)/Pik3cd(-/-)-arteries showed normal vasoconstriction. We conclude that PI3Kα is an important downstream element in vasoconstrictor GPCR signaling, which contributes to arterial vasocontraction via α1-adrenergic receptors. Our results highlight a regulatory role of PI3Kα in the cardiovascular system, which widens the spectrum of gene therapy approaches targeting PI3Kα in cancer cells and tumor angiogenesis and regional blood flow.
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Affiliation(s)
- D Tsvetkov
- Charité University Medicine Berlin, Experimental and Clinical Research Center, Section Nephrology/Intensive Care, Berlin, 13125, Germany.
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Maffei A, Cifelli G, Carnevale R, Iacobucci R, Pallante F, Fardella V, Fardella S, Hirsch E, Lembo G, Carnevale D. La inhibición de la PI3Kγ protege contra la miocardiopatía diabética en ratones. Rev Esp Cardiol 2017. [DOI: 10.1016/j.recesp.2016.04.025] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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The Multifaceted Roles of PI3Kγ in Hypertension, Vascular Biology, and Inflammation. Int J Mol Sci 2016; 17:ijms17111858. [PMID: 27834808 PMCID: PMC5133858 DOI: 10.3390/ijms17111858] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 10/22/2016] [Accepted: 11/03/2016] [Indexed: 12/12/2022] Open
Abstract
PI3Kγ is a multifaceted protein, crucially involved in cardiovascular and immune systems. Several studies described the biological and physiological functions of this enzyme in the regulation of cardiovascular system, while others stressed its role in the modulation of immunity. Although PI3Kγ has been historically investigated for its role in leukocytes, the last decade of research also dedicated efforts to explore its functions in the cardiovascular system. In this review, we report an overview recapitulating how PI3Kγ signaling participates in the regulation of vascular functions involved in blood pressure regulation. Moreover, we also summarize the main functions of PI3Kγ in immune responses that could be potentially important in the interaction with the cardiovascular system. Considering that vascular and immune mechanisms are increasingly emerging as intertwining players in hypertension, PI3Kγ could be an intriguing pathway acting on both sides. The availability of specific inhibitors introduces a perspective of further translational research and clinical approaches that could be exploited in hypertension.
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Maffei A, Cifelli G, Carnevale R, Iacobucci R, Pallante F, Fardella V, Fardella S, Hirsch E, Lembo G, Carnevale D. PI3Kγ Inhibition Protects Against Diabetic Cardiomyopathy in Mice. ACTA ACUST UNITED AC 2016; 70:16-24. [PMID: 27422446 DOI: 10.1016/j.rec.2016.04.034] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Accepted: 04/07/2016] [Indexed: 11/26/2022]
Abstract
INTRODUCTION AND OBJECTIVES Cardiovascular diseases, including cardiomyopathy, are the major complications in diabetes. A deeper understanding of the molecular mechanisms leading to cardiomyopathy is critical for developing novel therapies. We proposed phosphoinositide3-kinase gamma (PI3Kγ) as a molecular target against diabetic cardiomyopathy, given the role of PI3Kγ in cardiac remodeling to pressure overload. Given the availability of a pharmacological inhibitor of this molecular target GE21, we tested the validity of our hypothesis by inducing diabetes in mice with genetic ablation of PI3Kγ or knock-in for a catalytically inactive PI3Kγ. METHODS Mice were made diabetic by streptozotocin. Cardiac function was assessed by serial echocardiographic analyses, while fibrosis and inflammation were evaluated by histological analysis. RESULTS Diabetes induced cardiac dysfunction in wild-type mice. Systolic dysfunction was completely prevented, and diastolic dysfunction was partially blocked, in both PI3Kγ knock-out and kinase-dead mice. Cardiac dysfunction was similarly rescued by administration of the PI3Kγ inhibitor GE21 in a dose-dependent manner. These actions of genetic and pharmacological PI3Kγ inhibition were associated with a decrease in inflammation and fibrosis in diabetic hearts. CONCLUSIONS Our study demonstrates a fundamental role of PI3Kγ in diabetic cardiomyopathy in mice and the beneficial effect of pharmacological PI3Kγ inhibition, highlighting its potential as a promising strategy for clinical treatment of cardiac complications of diabetic patients.
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Affiliation(s)
- Angelo Maffei
- Department of Angiocardioneurology and Translational Medicine, IRCCS Neuromed, Istituto Neurologico Mediterraneo, Pozzilli, Isernia, Italy
| | - Giuseppe Cifelli
- Department of Angiocardioneurology and Translational Medicine, IRCCS Neuromed, Istituto Neurologico Mediterraneo, Pozzilli, Isernia, Italy
| | - Raimondo Carnevale
- Department of Angiocardioneurology and Translational Medicine, IRCCS Neuromed, Istituto Neurologico Mediterraneo, Pozzilli, Isernia, Italy
| | - Roberta Iacobucci
- Department of Angiocardioneurology and Translational Medicine, IRCCS Neuromed, Istituto Neurologico Mediterraneo, Pozzilli, Isernia, Italy
| | - Fabio Pallante
- Department of Angiocardioneurology and Translational Medicine, IRCCS Neuromed, Istituto Neurologico Mediterraneo, Pozzilli, Isernia, Italy
| | - Valentina Fardella
- Department of Angiocardioneurology and Translational Medicine, IRCCS Neuromed, Istituto Neurologico Mediterraneo, Pozzilli, Isernia, Italy
| | - Stefania Fardella
- Department of Angiocardioneurology and Translational Medicine, IRCCS Neuromed, Istituto Neurologico Mediterraneo, Pozzilli, Isernia, Italy
| | - Emilio Hirsch
- Department of Molecular Biotechnologies and Health Sciences, University of Torino, Turin, Italy
| | - Giuseppe Lembo
- Department of Angiocardioneurology and Translational Medicine, IRCCS Neuromed, Istituto Neurologico Mediterraneo, Pozzilli, Isernia, Italy; Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Daniela Carnevale
- Department of Angiocardioneurology and Translational Medicine, IRCCS Neuromed, Istituto Neurologico Mediterraneo, Pozzilli, Isernia, Italy; Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy.
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Zhang L, Erfle H, Harder N, Beneke J, Beil N, Bulkescher R, Rohr K, Keese M. High-Throughput RNAi Screening Identifies a Role for the Osteopontin Pathway in Proliferation and Migration of Human Aortic Smooth Muscle Cells. Cardiovasc Drugs Ther 2016; 30:281-95. [PMID: 27095116 DOI: 10.1007/s10557-016-6663-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
PURPOSE Understanding of the mechanisms of vascular smooth muscle cells (VSMCs) phenotypic regulation is critically important to identify novel candidates for future therapeutic intervention. While HTS approaches have recently been used to identify novel regulators in many cell lines, such as cancer cells and hematopoietic stem cells, no studies have so far systematically investigated the effect of gene inactivation on VSMCs with respect to cell survival and growth response. METHODS AND RESULTS 257 out of 2000 genes tested resulted in an inhibition of cell proliferation in HaoSMCs. After pathway analysis, 38 significant genes were selected for further study. 23 genes were confirmed to inhibit proliferation, and 13 genes found to induce apoptosis in the synthetic phenotype. 11 genes led to an aberrant nuclear phenotype indicating a central role in cell mitosis. 4 genes affected the cell migration in synthetic HaoSMCs. Using computational biological network analysis, 11 genes were identified to have an indirect or direct interaction with the Osteopontin pathway. For 10 of those genes, levels of proteins downstream of the Osteopontin pathway were found to be down-regulated, using RNAi methodology. CONCLUSIONS A phenotypic high-throughput siRNA screen could be applied to identify genes relevant for the cell biology of HaoSMCs. Novel genes were identified which play a role in proliferation, apoptosis, mitosis and migration of HaoSMCs. These may represent potential drug candidates in the future.
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Affiliation(s)
- Lei Zhang
- BioQuant, Heidelberg University, INF 267, 69120, Heidelberg, Germany.,Clinic for Vascular and Endovascular Surgery, University Hospital, Frankfurt, Germany
| | - Holger Erfle
- BioQuant, Heidelberg University, INF 267, 69120, Heidelberg, Germany
| | - Nathalie Harder
- BioQuant and IPMB, University of Heidelberg and DKFZ, Biomedical Computer Vision Group, Heidelberg, Germany
| | - Jürgen Beneke
- BioQuant, Heidelberg University, INF 267, 69120, Heidelberg, Germany
| | - Nina Beil
- BioQuant, Heidelberg University, INF 267, 69120, Heidelberg, Germany
| | - Ruben Bulkescher
- BioQuant, Heidelberg University, INF 267, 69120, Heidelberg, Germany
| | - Karl Rohr
- BioQuant and IPMB, University of Heidelberg and DKFZ, Biomedical Computer Vision Group, Heidelberg, Germany
| | - Michael Keese
- Clinic for Vascular and Endovascular Surgery, University Hospital, Frankfurt, Germany. .,Clinic for Vascular and Endovascular Surgery, Johann Wolfgang Goethe University Hospital, Theodor Stern Kai 7, 60590, Frankfurt am Main, Germany.
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Pressure Combined with Ischemia/Reperfusion Injury Induces Deep Tissue Injury via Endoplasmic Reticulum Stress in a Rat Pressure Ulcer Model. Int J Mol Sci 2016; 17:284. [PMID: 26927073 PMCID: PMC4813148 DOI: 10.3390/ijms17030284] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 02/16/2016] [Accepted: 02/17/2016] [Indexed: 12/14/2022] Open
Abstract
Pressure ulcer is a complex and significant health problem in long-term bedridden patients, and there is currently no effective treatment or efficient prevention method. Furthermore, the molecular mechanisms and pathogenesis contributing to the deep injury of pressure ulcers are unclear. The aim of the study was to explore the role of endoplasmic reticulum (ER) stress and Akt/GSK3β signaling in pressure ulcers. A model of pressure-induced deep tissue injury in adult Sprague-Dawley rats was established. Rats were treated with 2-h compression and subsequent 0.5-h release for various cycles. After recovery, the tissue in the compressed regions was collected for further analysis. The compressed muscle tissues showed clear cellular degenerative features. First, the expression levels of ER stress proteins GRP78, CHOP, and caspase-12 were generally increased compared to those in the control. Phosphorylated Akt and phosphorylated GSK3β were upregulated in the beginning of muscle compression, and immediately significantly decreased at the initiation of ischemia-reperfusion injury in compressed muscles tissue. These data show that ER stress may be involved in the underlying mechanisms of cell degeneration after pressure ulcers and that the Akt/GSK3β signal pathway may play an important role in deep tissue injury induced by pressure and ischemia/reperfusion.
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Villa F, Carrizzo A, Spinelli CC, Ferrario A, Malovini A, Maciąg A, Damato A, Auricchio A, Spinetti G, Sangalli E, Dang Z, Madonna M, Ambrosio M, Sitia L, Bigini P, Calì G, Schreiber S, Perls T, Fucile S, Mulas F, Nebel A, Bellazzi R, Madeddu P, Vecchione C, Puca AA. Genetic Analysis Reveals a Longevity-Associated Protein Modulating Endothelial Function and Angiogenesis. Circ Res 2015; 117:333-45. [PMID: 26034043 DOI: 10.1161/circresaha.117.305875] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Accepted: 06/01/2015] [Indexed: 12/30/2022]
Abstract
RATIONALE Long living individuals show delay of aging, which is characterized by the progressive loss of cardiovascular homeostasis, along with reduced endothelial nitric oxide synthase activity, endothelial dysfunction, and impairment of tissue repair after ischemic injury. OBJECTIVE Exploit genetic analysis of long living individuals to reveal master molecular regulators of physiological aging and new targets for treatment of cardiovascular disease. METHODS AND RESULTS We show that the polymorphic variant rs2070325 (Ile229Val) in bactericidal/permeability-increasing fold-containing-family-B-member-4 (BPIFB4) associates with exceptional longevity, under a recessive genetic model, in 3 independent populations. Moreover, the expression of BPIFB4 is instrumental to maintenance of cellular and vascular homeostasis through regulation of protein synthesis. BPIFB4 phosphorylation/activation by protein-kinase-R-like endoplasmic reticulum kinase induces its complexing with 14-3-3 and heat shock protein 90, which is facilitated by the longevity-associated variant. In isolated vessels, BPIFB4 is upregulated by mechanical stress, and its knock-down inhibits endothelium-dependent vasorelaxation. In hypertensive rats and old mice, gene transfer of longevity-associated variant-BPIFB4 restores endothelial nitric oxide synthase signaling, rescues endothelial dysfunction, and reduces blood pressure levels. Furthermore, BPIFB4 is implicated in vascular repair. BPIFB4 is abundantly expressed in circulating CD34(+) cells of long living individuals, and its knock-down in endothelial progenitor cells precludes their capacity to migrate toward the chemoattractant SDF-1. In a murine model of peripheral ischemia, systemic gene therapy with longevity-associated variant-BPIFB4 promotes the recruitment of hematopoietic stem cells, reparative vascularization, and reperfusion of the ischemic muscle. CONCLUSIONS Longevity-associated variant-BPIFB4 may represent a novel therapeutic tool to fight endothelial dysfunction and promote vascular reparative processes.
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Affiliation(s)
- Francesco Villa
- From the National Research Council, Institute for Biomedical Technologies, Segrate (MI), Italy (F.V., C.C.S., A.F.); IRCCS Neuromed, Department of Vascular Physiopathology, Pozzilli (IS), Italy (A.C., A.D., M.M., M.A., S.F., C.V.); Department of Industrial and Information Engineering, University of Pavia, Pavia, Italy (A. Malovini, F.M., R.B.); IRCCS Multimedica, Cardiovascular Department, Milan, Italy (A. Maciąg, G.S., E.S., A.A.P.); Department of Translational Medicine, "Federico II" University, Naples, Italy (A.A.); TIGEM (Telethon Institute of Genetics and Medicine), Naples, Italy (A.A.); Department of Experimental Cardiovascular Medicine, Bristol Heart Institute, University of Bristol, Bristol, United Kingdom (Z.D., P.M.); Department of Biochemistry and Molecular Pharmacology IRCCS Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy (L.S., P.B.); National Research Council, Institute of Experimental Endocrinology and Oncology (IEOS), Naples, Italy (G.C.); Institute of Clinical Molecular Biology, Christian-Albrechts University and the Schleswig-Holstein University Hospital, Kiel, Germany (S.S., A.N.); Geriatrics Section, Department of Medicine, Boston Medical Center, Boston University School of Medicine, Boston, MA (T.P.); Dipartimento di Fisiologia e Farmacologia, Sapienza Università di Roma, Rome, Italy (S.F.); and Dipartimento di Medicina e Chirurgia, Università degli Studi di Salerno, 84081 Baronissi (SA), Italy (C.V., A.A.P.)
| | - Albino Carrizzo
- From the National Research Council, Institute for Biomedical Technologies, Segrate (MI), Italy (F.V., C.C.S., A.F.); IRCCS Neuromed, Department of Vascular Physiopathology, Pozzilli (IS), Italy (A.C., A.D., M.M., M.A., S.F., C.V.); Department of Industrial and Information Engineering, University of Pavia, Pavia, Italy (A. Malovini, F.M., R.B.); IRCCS Multimedica, Cardiovascular Department, Milan, Italy (A. Maciąg, G.S., E.S., A.A.P.); Department of Translational Medicine, "Federico II" University, Naples, Italy (A.A.); TIGEM (Telethon Institute of Genetics and Medicine), Naples, Italy (A.A.); Department of Experimental Cardiovascular Medicine, Bristol Heart Institute, University of Bristol, Bristol, United Kingdom (Z.D., P.M.); Department of Biochemistry and Molecular Pharmacology IRCCS Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy (L.S., P.B.); National Research Council, Institute of Experimental Endocrinology and Oncology (IEOS), Naples, Italy (G.C.); Institute of Clinical Molecular Biology, Christian-Albrechts University and the Schleswig-Holstein University Hospital, Kiel, Germany (S.S., A.N.); Geriatrics Section, Department of Medicine, Boston Medical Center, Boston University School of Medicine, Boston, MA (T.P.); Dipartimento di Fisiologia e Farmacologia, Sapienza Università di Roma, Rome, Italy (S.F.); and Dipartimento di Medicina e Chirurgia, Università degli Studi di Salerno, 84081 Baronissi (SA), Italy (C.V., A.A.P.)
| | - Chiara C Spinelli
- From the National Research Council, Institute for Biomedical Technologies, Segrate (MI), Italy (F.V., C.C.S., A.F.); IRCCS Neuromed, Department of Vascular Physiopathology, Pozzilli (IS), Italy (A.C., A.D., M.M., M.A., S.F., C.V.); Department of Industrial and Information Engineering, University of Pavia, Pavia, Italy (A. Malovini, F.M., R.B.); IRCCS Multimedica, Cardiovascular Department, Milan, Italy (A. Maciąg, G.S., E.S., A.A.P.); Department of Translational Medicine, "Federico II" University, Naples, Italy (A.A.); TIGEM (Telethon Institute of Genetics and Medicine), Naples, Italy (A.A.); Department of Experimental Cardiovascular Medicine, Bristol Heart Institute, University of Bristol, Bristol, United Kingdom (Z.D., P.M.); Department of Biochemistry and Molecular Pharmacology IRCCS Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy (L.S., P.B.); National Research Council, Institute of Experimental Endocrinology and Oncology (IEOS), Naples, Italy (G.C.); Institute of Clinical Molecular Biology, Christian-Albrechts University and the Schleswig-Holstein University Hospital, Kiel, Germany (S.S., A.N.); Geriatrics Section, Department of Medicine, Boston Medical Center, Boston University School of Medicine, Boston, MA (T.P.); Dipartimento di Fisiologia e Farmacologia, Sapienza Università di Roma, Rome, Italy (S.F.); and Dipartimento di Medicina e Chirurgia, Università degli Studi di Salerno, 84081 Baronissi (SA), Italy (C.V., A.A.P.)
| | - Anna Ferrario
- From the National Research Council, Institute for Biomedical Technologies, Segrate (MI), Italy (F.V., C.C.S., A.F.); IRCCS Neuromed, Department of Vascular Physiopathology, Pozzilli (IS), Italy (A.C., A.D., M.M., M.A., S.F., C.V.); Department of Industrial and Information Engineering, University of Pavia, Pavia, Italy (A. Malovini, F.M., R.B.); IRCCS Multimedica, Cardiovascular Department, Milan, Italy (A. Maciąg, G.S., E.S., A.A.P.); Department of Translational Medicine, "Federico II" University, Naples, Italy (A.A.); TIGEM (Telethon Institute of Genetics and Medicine), Naples, Italy (A.A.); Department of Experimental Cardiovascular Medicine, Bristol Heart Institute, University of Bristol, Bristol, United Kingdom (Z.D., P.M.); Department of Biochemistry and Molecular Pharmacology IRCCS Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy (L.S., P.B.); National Research Council, Institute of Experimental Endocrinology and Oncology (IEOS), Naples, Italy (G.C.); Institute of Clinical Molecular Biology, Christian-Albrechts University and the Schleswig-Holstein University Hospital, Kiel, Germany (S.S., A.N.); Geriatrics Section, Department of Medicine, Boston Medical Center, Boston University School of Medicine, Boston, MA (T.P.); Dipartimento di Fisiologia e Farmacologia, Sapienza Università di Roma, Rome, Italy (S.F.); and Dipartimento di Medicina e Chirurgia, Università degli Studi di Salerno, 84081 Baronissi (SA), Italy (C.V., A.A.P.)
| | - Alberto Malovini
- From the National Research Council, Institute for Biomedical Technologies, Segrate (MI), Italy (F.V., C.C.S., A.F.); IRCCS Neuromed, Department of Vascular Physiopathology, Pozzilli (IS), Italy (A.C., A.D., M.M., M.A., S.F., C.V.); Department of Industrial and Information Engineering, University of Pavia, Pavia, Italy (A. Malovini, F.M., R.B.); IRCCS Multimedica, Cardiovascular Department, Milan, Italy (A. Maciąg, G.S., E.S., A.A.P.); Department of Translational Medicine, "Federico II" University, Naples, Italy (A.A.); TIGEM (Telethon Institute of Genetics and Medicine), Naples, Italy (A.A.); Department of Experimental Cardiovascular Medicine, Bristol Heart Institute, University of Bristol, Bristol, United Kingdom (Z.D., P.M.); Department of Biochemistry and Molecular Pharmacology IRCCS Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy (L.S., P.B.); National Research Council, Institute of Experimental Endocrinology and Oncology (IEOS), Naples, Italy (G.C.); Institute of Clinical Molecular Biology, Christian-Albrechts University and the Schleswig-Holstein University Hospital, Kiel, Germany (S.S., A.N.); Geriatrics Section, Department of Medicine, Boston Medical Center, Boston University School of Medicine, Boston, MA (T.P.); Dipartimento di Fisiologia e Farmacologia, Sapienza Università di Roma, Rome, Italy (S.F.); and Dipartimento di Medicina e Chirurgia, Università degli Studi di Salerno, 84081 Baronissi (SA), Italy (C.V., A.A.P.)
| | - Anna Maciąg
- From the National Research Council, Institute for Biomedical Technologies, Segrate (MI), Italy (F.V., C.C.S., A.F.); IRCCS Neuromed, Department of Vascular Physiopathology, Pozzilli (IS), Italy (A.C., A.D., M.M., M.A., S.F., C.V.); Department of Industrial and Information Engineering, University of Pavia, Pavia, Italy (A. Malovini, F.M., R.B.); IRCCS Multimedica, Cardiovascular Department, Milan, Italy (A. Maciąg, G.S., E.S., A.A.P.); Department of Translational Medicine, "Federico II" University, Naples, Italy (A.A.); TIGEM (Telethon Institute of Genetics and Medicine), Naples, Italy (A.A.); Department of Experimental Cardiovascular Medicine, Bristol Heart Institute, University of Bristol, Bristol, United Kingdom (Z.D., P.M.); Department of Biochemistry and Molecular Pharmacology IRCCS Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy (L.S., P.B.); National Research Council, Institute of Experimental Endocrinology and Oncology (IEOS), Naples, Italy (G.C.); Institute of Clinical Molecular Biology, Christian-Albrechts University and the Schleswig-Holstein University Hospital, Kiel, Germany (S.S., A.N.); Geriatrics Section, Department of Medicine, Boston Medical Center, Boston University School of Medicine, Boston, MA (T.P.); Dipartimento di Fisiologia e Farmacologia, Sapienza Università di Roma, Rome, Italy (S.F.); and Dipartimento di Medicina e Chirurgia, Università degli Studi di Salerno, 84081 Baronissi (SA), Italy (C.V., A.A.P.)
| | - Antonio Damato
- From the National Research Council, Institute for Biomedical Technologies, Segrate (MI), Italy (F.V., C.C.S., A.F.); IRCCS Neuromed, Department of Vascular Physiopathology, Pozzilli (IS), Italy (A.C., A.D., M.M., M.A., S.F., C.V.); Department of Industrial and Information Engineering, University of Pavia, Pavia, Italy (A. Malovini, F.M., R.B.); IRCCS Multimedica, Cardiovascular Department, Milan, Italy (A. Maciąg, G.S., E.S., A.A.P.); Department of Translational Medicine, "Federico II" University, Naples, Italy (A.A.); TIGEM (Telethon Institute of Genetics and Medicine), Naples, Italy (A.A.); Department of Experimental Cardiovascular Medicine, Bristol Heart Institute, University of Bristol, Bristol, United Kingdom (Z.D., P.M.); Department of Biochemistry and Molecular Pharmacology IRCCS Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy (L.S., P.B.); National Research Council, Institute of Experimental Endocrinology and Oncology (IEOS), Naples, Italy (G.C.); Institute of Clinical Molecular Biology, Christian-Albrechts University and the Schleswig-Holstein University Hospital, Kiel, Germany (S.S., A.N.); Geriatrics Section, Department of Medicine, Boston Medical Center, Boston University School of Medicine, Boston, MA (T.P.); Dipartimento di Fisiologia e Farmacologia, Sapienza Università di Roma, Rome, Italy (S.F.); and Dipartimento di Medicina e Chirurgia, Università degli Studi di Salerno, 84081 Baronissi (SA), Italy (C.V., A.A.P.)
| | - Alberto Auricchio
- From the National Research Council, Institute for Biomedical Technologies, Segrate (MI), Italy (F.V., C.C.S., A.F.); IRCCS Neuromed, Department of Vascular Physiopathology, Pozzilli (IS), Italy (A.C., A.D., M.M., M.A., S.F., C.V.); Department of Industrial and Information Engineering, University of Pavia, Pavia, Italy (A. Malovini, F.M., R.B.); IRCCS Multimedica, Cardiovascular Department, Milan, Italy (A. Maciąg, G.S., E.S., A.A.P.); Department of Translational Medicine, "Federico II" University, Naples, Italy (A.A.); TIGEM (Telethon Institute of Genetics and Medicine), Naples, Italy (A.A.); Department of Experimental Cardiovascular Medicine, Bristol Heart Institute, University of Bristol, Bristol, United Kingdom (Z.D., P.M.); Department of Biochemistry and Molecular Pharmacology IRCCS Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy (L.S., P.B.); National Research Council, Institute of Experimental Endocrinology and Oncology (IEOS), Naples, Italy (G.C.); Institute of Clinical Molecular Biology, Christian-Albrechts University and the Schleswig-Holstein University Hospital, Kiel, Germany (S.S., A.N.); Geriatrics Section, Department of Medicine, Boston Medical Center, Boston University School of Medicine, Boston, MA (T.P.); Dipartimento di Fisiologia e Farmacologia, Sapienza Università di Roma, Rome, Italy (S.F.); and Dipartimento di Medicina e Chirurgia, Università degli Studi di Salerno, 84081 Baronissi (SA), Italy (C.V., A.A.P.)
| | - Gaia Spinetti
- From the National Research Council, Institute for Biomedical Technologies, Segrate (MI), Italy (F.V., C.C.S., A.F.); IRCCS Neuromed, Department of Vascular Physiopathology, Pozzilli (IS), Italy (A.C., A.D., M.M., M.A., S.F., C.V.); Department of Industrial and Information Engineering, University of Pavia, Pavia, Italy (A. Malovini, F.M., R.B.); IRCCS Multimedica, Cardiovascular Department, Milan, Italy (A. Maciąg, G.S., E.S., A.A.P.); Department of Translational Medicine, "Federico II" University, Naples, Italy (A.A.); TIGEM (Telethon Institute of Genetics and Medicine), Naples, Italy (A.A.); Department of Experimental Cardiovascular Medicine, Bristol Heart Institute, University of Bristol, Bristol, United Kingdom (Z.D., P.M.); Department of Biochemistry and Molecular Pharmacology IRCCS Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy (L.S., P.B.); National Research Council, Institute of Experimental Endocrinology and Oncology (IEOS), Naples, Italy (G.C.); Institute of Clinical Molecular Biology, Christian-Albrechts University and the Schleswig-Holstein University Hospital, Kiel, Germany (S.S., A.N.); Geriatrics Section, Department of Medicine, Boston Medical Center, Boston University School of Medicine, Boston, MA (T.P.); Dipartimento di Fisiologia e Farmacologia, Sapienza Università di Roma, Rome, Italy (S.F.); and Dipartimento di Medicina e Chirurgia, Università degli Studi di Salerno, 84081 Baronissi (SA), Italy (C.V., A.A.P.)
| | - Elena Sangalli
- From the National Research Council, Institute for Biomedical Technologies, Segrate (MI), Italy (F.V., C.C.S., A.F.); IRCCS Neuromed, Department of Vascular Physiopathology, Pozzilli (IS), Italy (A.C., A.D., M.M., M.A., S.F., C.V.); Department of Industrial and Information Engineering, University of Pavia, Pavia, Italy (A. Malovini, F.M., R.B.); IRCCS Multimedica, Cardiovascular Department, Milan, Italy (A. Maciąg, G.S., E.S., A.A.P.); Department of Translational Medicine, "Federico II" University, Naples, Italy (A.A.); TIGEM (Telethon Institute of Genetics and Medicine), Naples, Italy (A.A.); Department of Experimental Cardiovascular Medicine, Bristol Heart Institute, University of Bristol, Bristol, United Kingdom (Z.D., P.M.); Department of Biochemistry and Molecular Pharmacology IRCCS Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy (L.S., P.B.); National Research Council, Institute of Experimental Endocrinology and Oncology (IEOS), Naples, Italy (G.C.); Institute of Clinical Molecular Biology, Christian-Albrechts University and the Schleswig-Holstein University Hospital, Kiel, Germany (S.S., A.N.); Geriatrics Section, Department of Medicine, Boston Medical Center, Boston University School of Medicine, Boston, MA (T.P.); Dipartimento di Fisiologia e Farmacologia, Sapienza Università di Roma, Rome, Italy (S.F.); and Dipartimento di Medicina e Chirurgia, Università degli Studi di Salerno, 84081 Baronissi (SA), Italy (C.V., A.A.P.)
| | - Zexu Dang
- From the National Research Council, Institute for Biomedical Technologies, Segrate (MI), Italy (F.V., C.C.S., A.F.); IRCCS Neuromed, Department of Vascular Physiopathology, Pozzilli (IS), Italy (A.C., A.D., M.M., M.A., S.F., C.V.); Department of Industrial and Information Engineering, University of Pavia, Pavia, Italy (A. Malovini, F.M., R.B.); IRCCS Multimedica, Cardiovascular Department, Milan, Italy (A. Maciąg, G.S., E.S., A.A.P.); Department of Translational Medicine, "Federico II" University, Naples, Italy (A.A.); TIGEM (Telethon Institute of Genetics and Medicine), Naples, Italy (A.A.); Department of Experimental Cardiovascular Medicine, Bristol Heart Institute, University of Bristol, Bristol, United Kingdom (Z.D., P.M.); Department of Biochemistry and Molecular Pharmacology IRCCS Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy (L.S., P.B.); National Research Council, Institute of Experimental Endocrinology and Oncology (IEOS), Naples, Italy (G.C.); Institute of Clinical Molecular Biology, Christian-Albrechts University and the Schleswig-Holstein University Hospital, Kiel, Germany (S.S., A.N.); Geriatrics Section, Department of Medicine, Boston Medical Center, Boston University School of Medicine, Boston, MA (T.P.); Dipartimento di Fisiologia e Farmacologia, Sapienza Università di Roma, Rome, Italy (S.F.); and Dipartimento di Medicina e Chirurgia, Università degli Studi di Salerno, 84081 Baronissi (SA), Italy (C.V., A.A.P.)
| | - Michele Madonna
- From the National Research Council, Institute for Biomedical Technologies, Segrate (MI), Italy (F.V., C.C.S., A.F.); IRCCS Neuromed, Department of Vascular Physiopathology, Pozzilli (IS), Italy (A.C., A.D., M.M., M.A., S.F., C.V.); Department of Industrial and Information Engineering, University of Pavia, Pavia, Italy (A. Malovini, F.M., R.B.); IRCCS Multimedica, Cardiovascular Department, Milan, Italy (A. Maciąg, G.S., E.S., A.A.P.); Department of Translational Medicine, "Federico II" University, Naples, Italy (A.A.); TIGEM (Telethon Institute of Genetics and Medicine), Naples, Italy (A.A.); Department of Experimental Cardiovascular Medicine, Bristol Heart Institute, University of Bristol, Bristol, United Kingdom (Z.D., P.M.); Department of Biochemistry and Molecular Pharmacology IRCCS Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy (L.S., P.B.); National Research Council, Institute of Experimental Endocrinology and Oncology (IEOS), Naples, Italy (G.C.); Institute of Clinical Molecular Biology, Christian-Albrechts University and the Schleswig-Holstein University Hospital, Kiel, Germany (S.S., A.N.); Geriatrics Section, Department of Medicine, Boston Medical Center, Boston University School of Medicine, Boston, MA (T.P.); Dipartimento di Fisiologia e Farmacologia, Sapienza Università di Roma, Rome, Italy (S.F.); and Dipartimento di Medicina e Chirurgia, Università degli Studi di Salerno, 84081 Baronissi (SA), Italy (C.V., A.A.P.)
| | - Mariateresa Ambrosio
- From the National Research Council, Institute for Biomedical Technologies, Segrate (MI), Italy (F.V., C.C.S., A.F.); IRCCS Neuromed, Department of Vascular Physiopathology, Pozzilli (IS), Italy (A.C., A.D., M.M., M.A., S.F., C.V.); Department of Industrial and Information Engineering, University of Pavia, Pavia, Italy (A. Malovini, F.M., R.B.); IRCCS Multimedica, Cardiovascular Department, Milan, Italy (A. Maciąg, G.S., E.S., A.A.P.); Department of Translational Medicine, "Federico II" University, Naples, Italy (A.A.); TIGEM (Telethon Institute of Genetics and Medicine), Naples, Italy (A.A.); Department of Experimental Cardiovascular Medicine, Bristol Heart Institute, University of Bristol, Bristol, United Kingdom (Z.D., P.M.); Department of Biochemistry and Molecular Pharmacology IRCCS Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy (L.S., P.B.); National Research Council, Institute of Experimental Endocrinology and Oncology (IEOS), Naples, Italy (G.C.); Institute of Clinical Molecular Biology, Christian-Albrechts University and the Schleswig-Holstein University Hospital, Kiel, Germany (S.S., A.N.); Geriatrics Section, Department of Medicine, Boston Medical Center, Boston University School of Medicine, Boston, MA (T.P.); Dipartimento di Fisiologia e Farmacologia, Sapienza Università di Roma, Rome, Italy (S.F.); and Dipartimento di Medicina e Chirurgia, Università degli Studi di Salerno, 84081 Baronissi (SA), Italy (C.V., A.A.P.)
| | - Leopoldo Sitia
- From the National Research Council, Institute for Biomedical Technologies, Segrate (MI), Italy (F.V., C.C.S., A.F.); IRCCS Neuromed, Department of Vascular Physiopathology, Pozzilli (IS), Italy (A.C., A.D., M.M., M.A., S.F., C.V.); Department of Industrial and Information Engineering, University of Pavia, Pavia, Italy (A. Malovini, F.M., R.B.); IRCCS Multimedica, Cardiovascular Department, Milan, Italy (A. Maciąg, G.S., E.S., A.A.P.); Department of Translational Medicine, "Federico II" University, Naples, Italy (A.A.); TIGEM (Telethon Institute of Genetics and Medicine), Naples, Italy (A.A.); Department of Experimental Cardiovascular Medicine, Bristol Heart Institute, University of Bristol, Bristol, United Kingdom (Z.D., P.M.); Department of Biochemistry and Molecular Pharmacology IRCCS Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy (L.S., P.B.); National Research Council, Institute of Experimental Endocrinology and Oncology (IEOS), Naples, Italy (G.C.); Institute of Clinical Molecular Biology, Christian-Albrechts University and the Schleswig-Holstein University Hospital, Kiel, Germany (S.S., A.N.); Geriatrics Section, Department of Medicine, Boston Medical Center, Boston University School of Medicine, Boston, MA (T.P.); Dipartimento di Fisiologia e Farmacologia, Sapienza Università di Roma, Rome, Italy (S.F.); and Dipartimento di Medicina e Chirurgia, Università degli Studi di Salerno, 84081 Baronissi (SA), Italy (C.V., A.A.P.)
| | - Paolo Bigini
- From the National Research Council, Institute for Biomedical Technologies, Segrate (MI), Italy (F.V., C.C.S., A.F.); IRCCS Neuromed, Department of Vascular Physiopathology, Pozzilli (IS), Italy (A.C., A.D., M.M., M.A., S.F., C.V.); Department of Industrial and Information Engineering, University of Pavia, Pavia, Italy (A. Malovini, F.M., R.B.); IRCCS Multimedica, Cardiovascular Department, Milan, Italy (A. Maciąg, G.S., E.S., A.A.P.); Department of Translational Medicine, "Federico II" University, Naples, Italy (A.A.); TIGEM (Telethon Institute of Genetics and Medicine), Naples, Italy (A.A.); Department of Experimental Cardiovascular Medicine, Bristol Heart Institute, University of Bristol, Bristol, United Kingdom (Z.D., P.M.); Department of Biochemistry and Molecular Pharmacology IRCCS Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy (L.S., P.B.); National Research Council, Institute of Experimental Endocrinology and Oncology (IEOS), Naples, Italy (G.C.); Institute of Clinical Molecular Biology, Christian-Albrechts University and the Schleswig-Holstein University Hospital, Kiel, Germany (S.S., A.N.); Geriatrics Section, Department of Medicine, Boston Medical Center, Boston University School of Medicine, Boston, MA (T.P.); Dipartimento di Fisiologia e Farmacologia, Sapienza Università di Roma, Rome, Italy (S.F.); and Dipartimento di Medicina e Chirurgia, Università degli Studi di Salerno, 84081 Baronissi (SA), Italy (C.V., A.A.P.)
| | - Gaetano Calì
- From the National Research Council, Institute for Biomedical Technologies, Segrate (MI), Italy (F.V., C.C.S., A.F.); IRCCS Neuromed, Department of Vascular Physiopathology, Pozzilli (IS), Italy (A.C., A.D., M.M., M.A., S.F., C.V.); Department of Industrial and Information Engineering, University of Pavia, Pavia, Italy (A. Malovini, F.M., R.B.); IRCCS Multimedica, Cardiovascular Department, Milan, Italy (A. Maciąg, G.S., E.S., A.A.P.); Department of Translational Medicine, "Federico II" University, Naples, Italy (A.A.); TIGEM (Telethon Institute of Genetics and Medicine), Naples, Italy (A.A.); Department of Experimental Cardiovascular Medicine, Bristol Heart Institute, University of Bristol, Bristol, United Kingdom (Z.D., P.M.); Department of Biochemistry and Molecular Pharmacology IRCCS Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy (L.S., P.B.); National Research Council, Institute of Experimental Endocrinology and Oncology (IEOS), Naples, Italy (G.C.); Institute of Clinical Molecular Biology, Christian-Albrechts University and the Schleswig-Holstein University Hospital, Kiel, Germany (S.S., A.N.); Geriatrics Section, Department of Medicine, Boston Medical Center, Boston University School of Medicine, Boston, MA (T.P.); Dipartimento di Fisiologia e Farmacologia, Sapienza Università di Roma, Rome, Italy (S.F.); and Dipartimento di Medicina e Chirurgia, Università degli Studi di Salerno, 84081 Baronissi (SA), Italy (C.V., A.A.P.)
| | - Stefan Schreiber
- From the National Research Council, Institute for Biomedical Technologies, Segrate (MI), Italy (F.V., C.C.S., A.F.); IRCCS Neuromed, Department of Vascular Physiopathology, Pozzilli (IS), Italy (A.C., A.D., M.M., M.A., S.F., C.V.); Department of Industrial and Information Engineering, University of Pavia, Pavia, Italy (A. Malovini, F.M., R.B.); IRCCS Multimedica, Cardiovascular Department, Milan, Italy (A. Maciąg, G.S., E.S., A.A.P.); Department of Translational Medicine, "Federico II" University, Naples, Italy (A.A.); TIGEM (Telethon Institute of Genetics and Medicine), Naples, Italy (A.A.); Department of Experimental Cardiovascular Medicine, Bristol Heart Institute, University of Bristol, Bristol, United Kingdom (Z.D., P.M.); Department of Biochemistry and Molecular Pharmacology IRCCS Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy (L.S., P.B.); National Research Council, Institute of Experimental Endocrinology and Oncology (IEOS), Naples, Italy (G.C.); Institute of Clinical Molecular Biology, Christian-Albrechts University and the Schleswig-Holstein University Hospital, Kiel, Germany (S.S., A.N.); Geriatrics Section, Department of Medicine, Boston Medical Center, Boston University School of Medicine, Boston, MA (T.P.); Dipartimento di Fisiologia e Farmacologia, Sapienza Università di Roma, Rome, Italy (S.F.); and Dipartimento di Medicina e Chirurgia, Università degli Studi di Salerno, 84081 Baronissi (SA), Italy (C.V., A.A.P.)
| | - Thomas Perls
- From the National Research Council, Institute for Biomedical Technologies, Segrate (MI), Italy (F.V., C.C.S., A.F.); IRCCS Neuromed, Department of Vascular Physiopathology, Pozzilli (IS), Italy (A.C., A.D., M.M., M.A., S.F., C.V.); Department of Industrial and Information Engineering, University of Pavia, Pavia, Italy (A. Malovini, F.M., R.B.); IRCCS Multimedica, Cardiovascular Department, Milan, Italy (A. Maciąg, G.S., E.S., A.A.P.); Department of Translational Medicine, "Federico II" University, Naples, Italy (A.A.); TIGEM (Telethon Institute of Genetics and Medicine), Naples, Italy (A.A.); Department of Experimental Cardiovascular Medicine, Bristol Heart Institute, University of Bristol, Bristol, United Kingdom (Z.D., P.M.); Department of Biochemistry and Molecular Pharmacology IRCCS Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy (L.S., P.B.); National Research Council, Institute of Experimental Endocrinology and Oncology (IEOS), Naples, Italy (G.C.); Institute of Clinical Molecular Biology, Christian-Albrechts University and the Schleswig-Holstein University Hospital, Kiel, Germany (S.S., A.N.); Geriatrics Section, Department of Medicine, Boston Medical Center, Boston University School of Medicine, Boston, MA (T.P.); Dipartimento di Fisiologia e Farmacologia, Sapienza Università di Roma, Rome, Italy (S.F.); and Dipartimento di Medicina e Chirurgia, Università degli Studi di Salerno, 84081 Baronissi (SA), Italy (C.V., A.A.P.)
| | - Sergio Fucile
- From the National Research Council, Institute for Biomedical Technologies, Segrate (MI), Italy (F.V., C.C.S., A.F.); IRCCS Neuromed, Department of Vascular Physiopathology, Pozzilli (IS), Italy (A.C., A.D., M.M., M.A., S.F., C.V.); Department of Industrial and Information Engineering, University of Pavia, Pavia, Italy (A. Malovini, F.M., R.B.); IRCCS Multimedica, Cardiovascular Department, Milan, Italy (A. Maciąg, G.S., E.S., A.A.P.); Department of Translational Medicine, "Federico II" University, Naples, Italy (A.A.); TIGEM (Telethon Institute of Genetics and Medicine), Naples, Italy (A.A.); Department of Experimental Cardiovascular Medicine, Bristol Heart Institute, University of Bristol, Bristol, United Kingdom (Z.D., P.M.); Department of Biochemistry and Molecular Pharmacology IRCCS Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy (L.S., P.B.); National Research Council, Institute of Experimental Endocrinology and Oncology (IEOS), Naples, Italy (G.C.); Institute of Clinical Molecular Biology, Christian-Albrechts University and the Schleswig-Holstein University Hospital, Kiel, Germany (S.S., A.N.); Geriatrics Section, Department of Medicine, Boston Medical Center, Boston University School of Medicine, Boston, MA (T.P.); Dipartimento di Fisiologia e Farmacologia, Sapienza Università di Roma, Rome, Italy (S.F.); and Dipartimento di Medicina e Chirurgia, Università degli Studi di Salerno, 84081 Baronissi (SA), Italy (C.V., A.A.P.)
| | - Francesca Mulas
- From the National Research Council, Institute for Biomedical Technologies, Segrate (MI), Italy (F.V., C.C.S., A.F.); IRCCS Neuromed, Department of Vascular Physiopathology, Pozzilli (IS), Italy (A.C., A.D., M.M., M.A., S.F., C.V.); Department of Industrial and Information Engineering, University of Pavia, Pavia, Italy (A. Malovini, F.M., R.B.); IRCCS Multimedica, Cardiovascular Department, Milan, Italy (A. Maciąg, G.S., E.S., A.A.P.); Department of Translational Medicine, "Federico II" University, Naples, Italy (A.A.); TIGEM (Telethon Institute of Genetics and Medicine), Naples, Italy (A.A.); Department of Experimental Cardiovascular Medicine, Bristol Heart Institute, University of Bristol, Bristol, United Kingdom (Z.D., P.M.); Department of Biochemistry and Molecular Pharmacology IRCCS Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy (L.S., P.B.); National Research Council, Institute of Experimental Endocrinology and Oncology (IEOS), Naples, Italy (G.C.); Institute of Clinical Molecular Biology, Christian-Albrechts University and the Schleswig-Holstein University Hospital, Kiel, Germany (S.S., A.N.); Geriatrics Section, Department of Medicine, Boston Medical Center, Boston University School of Medicine, Boston, MA (T.P.); Dipartimento di Fisiologia e Farmacologia, Sapienza Università di Roma, Rome, Italy (S.F.); and Dipartimento di Medicina e Chirurgia, Università degli Studi di Salerno, 84081 Baronissi (SA), Italy (C.V., A.A.P.)
| | - Almut Nebel
- From the National Research Council, Institute for Biomedical Technologies, Segrate (MI), Italy (F.V., C.C.S., A.F.); IRCCS Neuromed, Department of Vascular Physiopathology, Pozzilli (IS), Italy (A.C., A.D., M.M., M.A., S.F., C.V.); Department of Industrial and Information Engineering, University of Pavia, Pavia, Italy (A. Malovini, F.M., R.B.); IRCCS Multimedica, Cardiovascular Department, Milan, Italy (A. Maciąg, G.S., E.S., A.A.P.); Department of Translational Medicine, "Federico II" University, Naples, Italy (A.A.); TIGEM (Telethon Institute of Genetics and Medicine), Naples, Italy (A.A.); Department of Experimental Cardiovascular Medicine, Bristol Heart Institute, University of Bristol, Bristol, United Kingdom (Z.D., P.M.); Department of Biochemistry and Molecular Pharmacology IRCCS Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy (L.S., P.B.); National Research Council, Institute of Experimental Endocrinology and Oncology (IEOS), Naples, Italy (G.C.); Institute of Clinical Molecular Biology, Christian-Albrechts University and the Schleswig-Holstein University Hospital, Kiel, Germany (S.S., A.N.); Geriatrics Section, Department of Medicine, Boston Medical Center, Boston University School of Medicine, Boston, MA (T.P.); Dipartimento di Fisiologia e Farmacologia, Sapienza Università di Roma, Rome, Italy (S.F.); and Dipartimento di Medicina e Chirurgia, Università degli Studi di Salerno, 84081 Baronissi (SA), Italy (C.V., A.A.P.)
| | - Riccardo Bellazzi
- From the National Research Council, Institute for Biomedical Technologies, Segrate (MI), Italy (F.V., C.C.S., A.F.); IRCCS Neuromed, Department of Vascular Physiopathology, Pozzilli (IS), Italy (A.C., A.D., M.M., M.A., S.F., C.V.); Department of Industrial and Information Engineering, University of Pavia, Pavia, Italy (A. Malovini, F.M., R.B.); IRCCS Multimedica, Cardiovascular Department, Milan, Italy (A. Maciąg, G.S., E.S., A.A.P.); Department of Translational Medicine, "Federico II" University, Naples, Italy (A.A.); TIGEM (Telethon Institute of Genetics and Medicine), Naples, Italy (A.A.); Department of Experimental Cardiovascular Medicine, Bristol Heart Institute, University of Bristol, Bristol, United Kingdom (Z.D., P.M.); Department of Biochemistry and Molecular Pharmacology IRCCS Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy (L.S., P.B.); National Research Council, Institute of Experimental Endocrinology and Oncology (IEOS), Naples, Italy (G.C.); Institute of Clinical Molecular Biology, Christian-Albrechts University and the Schleswig-Holstein University Hospital, Kiel, Germany (S.S., A.N.); Geriatrics Section, Department of Medicine, Boston Medical Center, Boston University School of Medicine, Boston, MA (T.P.); Dipartimento di Fisiologia e Farmacologia, Sapienza Università di Roma, Rome, Italy (S.F.); and Dipartimento di Medicina e Chirurgia, Università degli Studi di Salerno, 84081 Baronissi (SA), Italy (C.V., A.A.P.)
| | - Paolo Madeddu
- From the National Research Council, Institute for Biomedical Technologies, Segrate (MI), Italy (F.V., C.C.S., A.F.); IRCCS Neuromed, Department of Vascular Physiopathology, Pozzilli (IS), Italy (A.C., A.D., M.M., M.A., S.F., C.V.); Department of Industrial and Information Engineering, University of Pavia, Pavia, Italy (A. Malovini, F.M., R.B.); IRCCS Multimedica, Cardiovascular Department, Milan, Italy (A. Maciąg, G.S., E.S., A.A.P.); Department of Translational Medicine, "Federico II" University, Naples, Italy (A.A.); TIGEM (Telethon Institute of Genetics and Medicine), Naples, Italy (A.A.); Department of Experimental Cardiovascular Medicine, Bristol Heart Institute, University of Bristol, Bristol, United Kingdom (Z.D., P.M.); Department of Biochemistry and Molecular Pharmacology IRCCS Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy (L.S., P.B.); National Research Council, Institute of Experimental Endocrinology and Oncology (IEOS), Naples, Italy (G.C.); Institute of Clinical Molecular Biology, Christian-Albrechts University and the Schleswig-Holstein University Hospital, Kiel, Germany (S.S., A.N.); Geriatrics Section, Department of Medicine, Boston Medical Center, Boston University School of Medicine, Boston, MA (T.P.); Dipartimento di Fisiologia e Farmacologia, Sapienza Università di Roma, Rome, Italy (S.F.); and Dipartimento di Medicina e Chirurgia, Università degli Studi di Salerno, 84081 Baronissi (SA), Italy (C.V., A.A.P.)
| | - Carmine Vecchione
- From the National Research Council, Institute for Biomedical Technologies, Segrate (MI), Italy (F.V., C.C.S., A.F.); IRCCS Neuromed, Department of Vascular Physiopathology, Pozzilli (IS), Italy (A.C., A.D., M.M., M.A., S.F., C.V.); Department of Industrial and Information Engineering, University of Pavia, Pavia, Italy (A. Malovini, F.M., R.B.); IRCCS Multimedica, Cardiovascular Department, Milan, Italy (A. Maciąg, G.S., E.S., A.A.P.); Department of Translational Medicine, "Federico II" University, Naples, Italy (A.A.); TIGEM (Telethon Institute of Genetics and Medicine), Naples, Italy (A.A.); Department of Experimental Cardiovascular Medicine, Bristol Heart Institute, University of Bristol, Bristol, United Kingdom (Z.D., P.M.); Department of Biochemistry and Molecular Pharmacology IRCCS Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy (L.S., P.B.); National Research Council, Institute of Experimental Endocrinology and Oncology (IEOS), Naples, Italy (G.C.); Institute of Clinical Molecular Biology, Christian-Albrechts University and the Schleswig-Holstein University Hospital, Kiel, Germany (S.S., A.N.); Geriatrics Section, Department of Medicine, Boston Medical Center, Boston University School of Medicine, Boston, MA (T.P.); Dipartimento di Fisiologia e Farmacologia, Sapienza Università di Roma, Rome, Italy (S.F.); and Dipartimento di Medicina e Chirurgia, Università degli Studi di Salerno, 84081 Baronissi (SA), Italy (C.V., A.A.P.)
| | - Annibale A Puca
- From the National Research Council, Institute for Biomedical Technologies, Segrate (MI), Italy (F.V., C.C.S., A.F.); IRCCS Neuromed, Department of Vascular Physiopathology, Pozzilli (IS), Italy (A.C., A.D., M.M., M.A., S.F., C.V.); Department of Industrial and Information Engineering, University of Pavia, Pavia, Italy (A. Malovini, F.M., R.B.); IRCCS Multimedica, Cardiovascular Department, Milan, Italy (A. Maciąg, G.S., E.S., A.A.P.); Department of Translational Medicine, "Federico II" University, Naples, Italy (A.A.); TIGEM (Telethon Institute of Genetics and Medicine), Naples, Italy (A.A.); Department of Experimental Cardiovascular Medicine, Bristol Heart Institute, University of Bristol, Bristol, United Kingdom (Z.D., P.M.); Department of Biochemistry and Molecular Pharmacology IRCCS Istituto di Ricerche Farmacologiche "Mario Negri", Milan, Italy (L.S., P.B.); National Research Council, Institute of Experimental Endocrinology and Oncology (IEOS), Naples, Italy (G.C.); Institute of Clinical Molecular Biology, Christian-Albrechts University and the Schleswig-Holstein University Hospital, Kiel, Germany (S.S., A.N.); Geriatrics Section, Department of Medicine, Boston Medical Center, Boston University School of Medicine, Boston, MA (T.P.); Dipartimento di Fisiologia e Farmacologia, Sapienza Università di Roma, Rome, Italy (S.F.); and Dipartimento di Medicina e Chirurgia, Università degli Studi di Salerno, 84081 Baronissi (SA), Italy (C.V., A.A.P.).
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Abstract
Redox agents have been historically considered pathological agents which can react with and damage many biological macromolecules including DNA, proteins, and lipids. However, a growing number of reports have suggested that mammalian cells can rapidly respond to ligand stimulation with a change in intracellular ROS thus indicating that the production of intracellular redox agents is tightly regulated and that they serve as intracellular signaling molecules being involved in a variety of cell signaling pathways. Numerous observations have suggested that some members of the Ras GTPase superfamily appear to regulate the production of redox agents and that oxidants can function as effector molecules for the small GTPases, thus contributing to their overall biological function. In addition, many of the Ras superfamily small GTPases have been shown to be redox sensitive, thanks to the presence of redox-sensitive sequences in their primary structure. The action of redox agents on these redox-sensitive GTPases is similar to that of guanine nucleotide exchange factors in that they perturb GTPase nucleotide-binding interactions that result in the enhancement of the guanine nucleotide exchange of small GTPases. Thus, Ras GTPases may act both as upstream regulators and downstream effectors of redox agents. Here we overview current understanding concerning the interplay between Ras GTPases and redox agents, also taking into account pathological implications of misregulation of this cross talk and highlighting the potentiality of these cellular pathways as new therapeutical targets for different pathologies.
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Crowley SD. The cooperative roles of inflammation and oxidative stress in the pathogenesis of hypertension. Antioxid Redox Signal 2014; 20:102-20. [PMID: 23472597 PMCID: PMC3880899 DOI: 10.1089/ars.2013.5258] [Citation(s) in RCA: 129] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
SIGNIFICANCE Innate and adaptive immunity play fundamental roles in the development of hypertension and its complications. As effectors of the cell-mediated immune response, myeloid cells and T lymphocytes protect the host organism from infection by attacking foreign intruders with bursts of reactive oxygen species (ROS). RECENT ADVANCES While these ROS may help to preserve the vascular tone and thereby protect against circulatory collapse in the face of overwhelming infection, aberrant elaboration of ROS triggered by immune cells in the absence of a hemodynamic insult can lead to pathologic increases in blood pressure. Conversely, misdirected oxidative stress in cardiovascular control organs, including the vasculature, the kidney, and the nervous system potentiates inflammatory responses, augmenting blood pressure elevation and inciting target organ damage. CRITICAL ISSUES Inflammation and oxidative stress thereby act as cooperative and synergistic partners in the pathogenesis of hypertension. FUTURE DIRECTIONS Pharmacologic interventions for hypertensive patients will need to exploit this robust bidirectional relationship between ROS generation and immune activation in cardiovascular control organs to maximize therapeutic benefit, while limiting off-target side effects.
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Affiliation(s)
- Steven D Crowley
- Division of Nephrology, Department of Medicine, Duke University and Durham VA Medical Centers , Durham, North Carolina
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Bhattachariya A, Dahan D, Turczyńska KM, Swärd K, Hellstrand P, Albinsson S. Expression of microRNAs is essential for arterial myogenic tone and pressure-induced activation of the PI3-kinase/Akt pathway. Cardiovasc Res 2013; 101:288-96. [PMID: 24233972 DOI: 10.1093/cvr/cvt253] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
AIMS The myogenic response is the intrinsic ability of small arteries to constrict in response to increased intraluminal pressure. Although microRNAs have been shown to play a role in vascular smooth muscle function, their importance in the regulation of the myogenic response is not known. In this study, we investigate the role of microRNAs in the regulation of myogenic tone by using smooth muscle-specific and tamoxifen-inducible deletion of the endonuclease Dicer in mice. METHODS AND RESULTS In order to avoid effects of Dicer deletion on smooth muscle differentiation and growth, we used an early time point (5 weeks) after the tamoxifen-induction of Dicer knockout (KO). At this time point, we found that myogenic tone was completely absent in the mesenteric arteries of Dicer KO mice. This was associated with a reduced pressure-induced Akt-phosphorylation, possibly via increased phosphatase and tensin homologue (PTEN) expression, which was found to be a target of miR-26a. Furthermore, loss of myogenic tone was associated with a decreased depolarization-induced calcium influx, and was restored by the L-type channel agonist Bay K 8644 or by transient stimulation with angiotensin II (Ang II). The effect of Ang II was dependent on AT1-receptors and activation of the PI3-kinase/Akt pathway. CONCLUSION In this study we have identified novel mechanisms that regulate myogenic tone in resistance arteries, which involves microRNA-dependent control of PI3-kinase/Akt signalling and L-type calcium influx. Furthermore, we have demonstrated that transient stimulation by Ang II can have long-lasting effects by potentiating myogenic tone.
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Affiliation(s)
- Anirban Bhattachariya
- Department of Experimental Medical Sciences, Lund University, BMC D12, SE-221 84 Lund, Sweden
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47
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Wymann MP, Solinas G. Inhibition of phosphoinositide 3-kinase γ attenuates inflammation, obesity, and cardiovascular risk factors. Ann N Y Acad Sci 2013; 1280:44-7. [PMID: 23551103 DOI: 10.1111/nyas.12037] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Phosphoinositide 3-kinase γ (PI3Kγ) plays a central role in inflammation, allergy, cardiovascular, and metabolic disease. Obesity is accompanied by chronic, low-grade inflammation. As PI3Kγ plays a major role in leukocyte recruitment, targeting of PI3Kγ has been considered to be a strategy for attenuating progression of obesity to insulin resistance and type 2 diabetes. Indeed, PI3Kγ null mice are protected from high fat diet-induced obesity, metabolic inflammation, fatty liver, and insulin resistance. The lean phenotype of the PI3Kγ-null mice has been linked to increased thermogenesis and energy expenditure. Surprisingly, the increase in fat mass and metabolic aberrations were not linked to PI3Kγ activity in the hematopoietic compartment. Thermogenesis and oxygen consumption are modulated by PI3Kγ lipid kinase-dependent and -independent signaling mechanisms. PI3Kγ signaling controls metabolic and inflammatory stress, and may provide an entry point for therapeutic strategies in metabolic disease, inflammation, and cardiovascular disease.
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48
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HIF isoforms in the skin differentially regulate systemic arterial pressure. Proc Natl Acad Sci U S A 2013; 110:17570-5. [PMID: 24101470 DOI: 10.1073/pnas.1306942110] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Vascular flow through tissues is regulated via a number of homeostatic mechanisms. Localized control of tissue blood flow, or autoregulation, is a key factor in regulating tissue perfusion and oxygenation. We show here that the net balance between two hypoxia-inducible factor (HIF) transcription factor isoforms, HIF-1α and HIF-2α, is an essential mechanism regulating both local and systemic blood flow in the skin of mice. We also show that balance of HIF isoforms in keratinocyte-specific mutant mice affects thermal adaptation, exercise capacity, and systemic arterial pressure. The two primary HIF isoforms achieve these effects in opposing ways that are associated with HIF isoform regulation of nitric oxide production. We also show that a correlation exists between altered levels of HIF isoforms in the skin and the degree of idiopathic hypertension in human subjects. Thus, the balance between HIF-1α and HIF-2α expression in keratinocytes is a control element of both tissue perfusion and systemic arterial pressure, with potential implications in human hypertension.
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49
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Wang Y, Zhang ZZ, Wu Y, Ke JJ, He XH, Wang YL. Quercetin postconditioning attenuates myocardial ischemia/reperfusion injury in rats through the PI3K/Akt pathway. Braz J Med Biol Res 2013; 46:861-7. [PMID: 24068165 PMCID: PMC3854307 DOI: 10.1590/1414-431x20133036] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2013] [Accepted: 07/15/2013] [Indexed: 11/24/2022] Open
Abstract
Quercetin (Que), a plant-derived flavonoid, has multiple benefical actions on the
cardiovascular system. The current study investigated whether Que
postconditioning has any protective effects on myocardial ischemia/reperfusion
(I/R) injury in vivo and its potential cardioprotective
mechanisms. Male Sprague-Dawley rats were randomly allocated to 5 groups (20
animals/group): sham, I/R, Que postconditioning, Que+LY294002 [a
phosphatidylinositol 3-kinase (PI3K)/Akt signaling pathway inhibitor], and
LY294002+I/R. I/R was produced by 30-min coronary occlusion followed by 2-h
reperfusion. At the end of reperfusion, myocardial infarct size and biochemical
changes were compared. Apoptosis was evaluated by both TUNEL staining and
measurement of activated caspase-3 immunoreactivity. The phosphorylation of Akt
and protein expression of Bcl-2 and Bax were determined by Western blotting. Que
postconditioning significantly reduced infarct size and serum levels of creatine
kinase and lactate dehydrogenase compared with the I/R group (all P<0.05).
Apoptotic cardiomyocytes and caspase-3 immunoreactivity were also suppressed in
the Que postconditioning group compared with the I/R group (both P<0.05). Akt
phosphorylation and Bcl-2 expression increased after Que postconditioning, but
Bax expression decreased. These effects were inhibited by LY294002. The data
indicate that Que postconditioning can induce cardioprotection by activating the
PI3K/Akt signaling pathway and modulating the expression of Bcl-2 and Bax
proteins.
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Affiliation(s)
- Y Wang
- Zhongnan Hospital, Wuhan University, Department of Anesthesiology, Wuhan, China
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50
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Abstract
Phosphoinositides (PIs) make up only a small fraction of cellular phospholipids, yet they control almost all aspects of a cell's life and death. These lipids gained tremendous research interest as plasma membrane signaling molecules when discovered in the 1970s and 1980s. Research in the last 15 years has added a wide range of biological processes regulated by PIs, turning these lipids into one of the most universal signaling entities in eukaryotic cells. PIs control organelle biology by regulating vesicular trafficking, but they also modulate lipid distribution and metabolism via their close relationship with lipid transfer proteins. PIs regulate ion channels, pumps, and transporters and control both endocytic and exocytic processes. The nuclear phosphoinositides have grown from being an epiphenomenon to a research area of its own. As expected from such pleiotropic regulators, derangements of phosphoinositide metabolism are responsible for a number of human diseases ranging from rare genetic disorders to the most common ones such as cancer, obesity, and diabetes. Moreover, it is increasingly evident that a number of infectious agents hijack the PI regulatory systems of host cells for their intracellular movements, replication, and assembly. As a result, PI converting enzymes began to be noticed by pharmaceutical companies as potential therapeutic targets. This review is an attempt to give an overview of this enormous research field focusing on major developments in diverse areas of basic science linked to cellular physiology and disease.
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Affiliation(s)
- Tamas Balla
- Section on Molecular Signal Transduction, Program for Developmental Neuroscience, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland 20892, USA.
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