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Zeng GG, Zhou J, Jiang WL, Yu J, Nie GY, Li J, Zhang SQ, Tang CK. A Potential Role of NFIL3 in Atherosclerosis. Curr Probl Cardiol 2024; 49:102096. [PMID: 37741601 DOI: 10.1016/j.cpcardiol.2023.102096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 09/18/2023] [Indexed: 09/25/2023]
Abstract
Nuclear factor interleukin-3 (NFIL3), a proline- and acidic-residue-rich (PAR) bZIP transcription factor, is called the E4 binding protein 4 (E4BP4) as well, which is relevant to regulate the circadian rhythms and the viability of cells. More and more evidence has shown that NFIL3 is associated with different cardiovascular diseases. In recent years, it has been found that NFIL3 has significant functions in the progression of atherosclerosis (AS) via the regulation of inflammatory response, macrophage polarization, some immune cells and lipid metabolism. In this overview, we sum up the function of NFIL3 during the development of AS and offer meaningful views how to treat cardiovascular disease related to AS.
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Affiliation(s)
- Guang-Gui Zeng
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China; 2020 Grade Excellent Doctor Class of Hengyang Medical College, University of South China, Hengyang, Hunan 421001, China
| | - Jing Zhou
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China; School of Pharmaceutical Science, University of South China, Hengyang City, Hunan Province 421001, PR China
| | - Wan-Li Jiang
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China; Departments of Clinical Medicine, Hengyang Medical College, University of South China, Hengyang, Hunan 421001, People's Republic of China
| | - Jiang Yu
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China; Departments of Clinical Medicine, Hengyang Medical College, University of South China, Hengyang, Hunan 421001, People's Republic of China
| | - Gui-Ying Nie
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China; 2019 Grade Excellent Doctor Class of Hengyang Medical College, University of South China, Hengyang, Hunan 421001, China
| | - Jing Li
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China; Departments of Clinical Medicine, Hengyang Medical College, University of South China, Hengyang, Hunan 421001, People's Republic of China
| | - Shi-Qian Zhang
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China; Departments of Clinical Medicine, Hengyang Medical College, University of South China, Hengyang, Hunan 421001, People's Republic of China
| | - Chao-Ke Tang
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China.
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2
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Griffiths K, Madhani M. The Use of Wire Myography to Investigate Vascular Tone and Function. METHODS IN MOLECULAR BIOLOGY (CLIFTON, N.J.) 2022; 2419:361-376. [PMID: 35237977 DOI: 10.1007/978-1-0716-1924-7_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Wire myography enables the investigation of vascular tone and function of small vessels. The vessel of interest is harvested from the experimental model of choice, and then mounted as ring preparations onto a four-channel wire myograph. This technique enables ex vivo measurements of isometric response of vessels to different pharmacological agents. Here we describe in detail how to dissect, mount, and normalize vessels for the wire myography technique. We will also provide examples of how to construct concentration-response curves to a contractile and vasodilatory pharmacological agent.
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Affiliation(s)
- Kayleigh Griffiths
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Melanie Madhani
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK.
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3
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Liehn EA, Lupan AM, Diaconu R, Ioana M, Streata I, Manole C, Burlacu A. Heart function assessment during aging in apolipoprotein E knock-out mice. Discoveries (Craiova) 2021; 9:e136. [PMID: 34816004 PMCID: PMC8605688 DOI: 10.15190/d.2021.15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 09/23/2021] [Accepted: 09/28/2021] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Apolipoprotein (apo) E isoforms have strong correlations with metabolic and cardiovascular diseases. However, it is not clear if apoE has a role in development of non-ischemic cardiomyopathy. Our study aims to analyze the involvement of apoE in non-ischemic cardiomyopathy. METHODS AND RESULTS Serial echo-cardiographic measurements were performed in old wildtype and apoE deficient (apoE-/-) mice. Morphological and functional cardiac parameters were in normal range in both groups at the age of 12 month. At the age of 18 months, both groups had shown ventricular dilation and increased heart rates. However, the apoE-/- mice presented signs of diastolic dysfunction by hypertrophic changes in left ventricle, due probably to arterial hypertension. The right ventricle was not affected by age or genotype. CONCLUSION: Even in the absence of high fat diet, apoE deficiency in mice induces mild changes in the cardiac function of the left ventricle during aging, by developing diastolic dysfunction, which leads to heart failure with preserved ejection fraction. However, further studies are necessary to conclude over the role of apoE in cardiac physiology and its involvement in development of heart failure.
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Affiliation(s)
- Elisa A Liehn
- Human Genetic Laboratory, University of Medicine and Pharmacy of Craiova, Craiova, Romania.,Department of Cardiology, Angiology and Intensive Care, Medical Faculty, University Hospital Aachen, Aachen, Germany.,Victor Babes National Institute of Pathology, Bucharest, Romania
| | - Ana-Mihaela Lupan
- Nicolae Simionescu Institute of Cellular Biology and Pathology, Bucharest, Romania
| | - Rodica Diaconu
- Human Genetic Laboratory, University of Medicine and Pharmacy of Craiova, Craiova, Romania.,Department of Cardiology, Angiology and Intensive Care, Medical Faculty, University Hospital Aachen, Aachen, Germany
| | - Mihai Ioana
- Human Genetic Laboratory, University of Medicine and Pharmacy of Craiova, Craiova, Romania
| | - Ioana Streata
- Human Genetic Laboratory, University of Medicine and Pharmacy of Craiova, Craiova, Romania
| | - Catalin Manole
- Victor Babes National Institute of Pathology, Bucharest, Romania
| | - Alexandrina Burlacu
- Nicolae Simionescu Institute of Cellular Biology and Pathology, Bucharest, Romania
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Diaconu R, Schaaps N, Afify M, Boor P, Cornelissen A, Florescu RA, Simsekyilmaz S, El-Khoury T, Schumacher D, Ioana M, Streata I, Militaru C, Donoiu I, Vogt F, Liehn EA. Apolipoprotein E4 Is Associated with Right Ventricular Dysfunction in Dilated Cardiomyopathy-An Animal and In-Human Comparative Study. Int J Mol Sci 2021; 22:ijms22189688. [PMID: 34575848 PMCID: PMC8468742 DOI: 10.3390/ijms22189688] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 08/29/2021] [Accepted: 08/30/2021] [Indexed: 01/03/2023] Open
Abstract
ApoE abnormality represents a well-known risk factor for cardiovascular diseases. Beyond its role in lipid metabolism, novel studies demonstrate a complex involvement of apoE in membrane homeostasis and signaling as well as in nuclear transcription. Due to the large spread of apoE isoforms in the human population, there is a need to understand the apoE’s role in pathological processes. Our study aims to dissect the involvement of apoE in heart failure. We showed that apoE-deficient rats present multiple organ damages (kidney, liver, lung and spleen) besides the known predisposition for obesity and affected lipid metabolism (two-fold increase in tissular damages in liver and one-fold increase in kidney, lung and spleen). Heart tissue also showed significant morphological changes in apoE−/− rats, mostly after a high-fat diet. Interestingly, the right ventricle of apoE−/− rats fed a high-fat diet showed more damage and affected collagen content (~60% less total collagen content and double increase in collagen1/collagen3 ratio) compared with the left ventricle (no significant differences in total collagen content or collagen1/collagen3 ratio). In patients, we were able to find a correlation between the presence of ε4 allele and cardiomyopathy (χ2 = 10.244; p = 0.001), but also with right ventricle dysfunction with decreased TAPSE (15.3 ± 2.63 mm in ε4-allele-presenting patients vs. 19.8 ± 3.58 mm if the ε4 allele is absent, p < 0.0001*) and increased in systolic pulmonary artery pressure (50.44 ± 16.47 mmHg in ε4-allele-presenting patients vs. 40.68 ± 15.94 mmHg if the ε4 allele is absent, p = 0.0019). Our results confirm that the presence of the ε4 allele is a lipid-metabolism-independent risk factor for heart failure. Moreover, we show for the first time that the presence of the ε4 allele is associated with right ventricle dysfunction, implying different regulatory mechanisms of fibroblasts and the extracellular matrix in both ventricles. This is essential to be considered and thoroughly investigated before the design of therapeutical strategies for patients with heart failure.
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Affiliation(s)
- Rodica Diaconu
- Human Genetic Laboratory, Faculty of Medicine, University of Medicine and Pharmacy, 200349 Craiova, Romania; (R.D.); (M.I.); (I.S.)
- Department of Cardiology, University of Medicine and Pharmacy, 200349 Craiova, Romania; (C.M.); (I.D.)
| | - Nicole Schaaps
- Department of Cardiology, Angiology and Intensive Care, Medical Faculty, RWTH Aachen University, 52074 Aachen, Germany; (N.S.); (M.A.); (A.C.); (R.A.F.); (T.E.-K.); (F.V.)
| | - Mamdouh Afify
- Department of Cardiology, Angiology and Intensive Care, Medical Faculty, RWTH Aachen University, 52074 Aachen, Germany; (N.S.); (M.A.); (A.C.); (R.A.F.); (T.E.-K.); (F.V.)
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt
| | - Peter Boor
- Medical Faculty, Institute of Pathology, RWTH Aachen University, 52074 Aachen, Germany;
| | - Anne Cornelissen
- Department of Cardiology, Angiology and Intensive Care, Medical Faculty, RWTH Aachen University, 52074 Aachen, Germany; (N.S.); (M.A.); (A.C.); (R.A.F.); (T.E.-K.); (F.V.)
| | - Roberta A. Florescu
- Department of Cardiology, Angiology and Intensive Care, Medical Faculty, RWTH Aachen University, 52074 Aachen, Germany; (N.S.); (M.A.); (A.C.); (R.A.F.); (T.E.-K.); (F.V.)
| | - Sakine Simsekyilmaz
- Department for Pharmacology and Clinical Pharmacology, Medical Faculty, University Hospital Düsseldorf, 40225 Düsseldorf, Germany;
| | - Teddy El-Khoury
- Department of Cardiology, Angiology and Intensive Care, Medical Faculty, RWTH Aachen University, 52074 Aachen, Germany; (N.S.); (M.A.); (A.C.); (R.A.F.); (T.E.-K.); (F.V.)
| | - David Schumacher
- Department of Anesthesiology, Medical Faculty, RWTH Aachen University, 52074 Aachen, Germany;
- Medical Faculty, Institute of Experimental Medicine and Systems Biology, RWTH Aachen University, 52074 Aachen, Germany
| | - Mihai Ioana
- Human Genetic Laboratory, Faculty of Medicine, University of Medicine and Pharmacy, 200349 Craiova, Romania; (R.D.); (M.I.); (I.S.)
| | - Ioana Streata
- Human Genetic Laboratory, Faculty of Medicine, University of Medicine and Pharmacy, 200349 Craiova, Romania; (R.D.); (M.I.); (I.S.)
| | - Constantin Militaru
- Department of Cardiology, University of Medicine and Pharmacy, 200349 Craiova, Romania; (C.M.); (I.D.)
| | - Ionut Donoiu
- Department of Cardiology, University of Medicine and Pharmacy, 200349 Craiova, Romania; (C.M.); (I.D.)
| | - Felix Vogt
- Department of Cardiology, Angiology and Intensive Care, Medical Faculty, RWTH Aachen University, 52074 Aachen, Germany; (N.S.); (M.A.); (A.C.); (R.A.F.); (T.E.-K.); (F.V.)
| | - Elisa A. Liehn
- Human Genetic Laboratory, Faculty of Medicine, University of Medicine and Pharmacy, 200349 Craiova, Romania; (R.D.); (M.I.); (I.S.)
- Department of Cardiology, Angiology and Intensive Care, Medical Faculty, RWTH Aachen University, 52074 Aachen, Germany; (N.S.); (M.A.); (A.C.); (R.A.F.); (T.E.-K.); (F.V.)
- Medical Faculty, Institute for Molecular Cardiovascular Research (IMCAR), RWTH Aachen University, 52074 Aachen, Germany
- Institute for Pathology “Victor Babes”, 050096 Bucharest, Romania
- Correspondence:
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Sugimoto K, Yokokawa T, Misaka T, Kaneshiro T, Yoshihisa A, Nakazato K, Takeishi Y. High-fat diet attenuates the improvement of hypoxia-induced pulmonary hypertension in mice during reoxygenation. BMC Cardiovasc Disord 2021; 21:331. [PMID: 34229630 PMCID: PMC8258936 DOI: 10.1186/s12872-021-02143-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Accepted: 06/14/2021] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND It is widely recognized that metabolic disorder is associated with pulmonary hypertension (PH). It is known that hypoxia-induced elevated pulmonary artery pressure in mice returns to normal pressure during reoxygenation. However, it is still unclear how metabolic disorder affects the reverse remodeling of pulmonary arteries. In this study, we investigated the effects of high-fat diet (HFD) on the decrease in pulmonary artery pressure and reverse remodeling of pulmonary arteries in mice with hypoxia-induced PH. METHODS We used female C57BL/6 mice aged 8 weeks. After being exposed to hypoxia (10% oxygen for four weeks) to induce PH, the mice were returned to normoxic conditions and randomized into a normal diet (ND) group and HFD group. Both groups were fed with their respective diets for 12 weeks. RESULTS The Fulton index and right ventricular systolic pressure measured by a micro-manometer catheter were significantly higher in the HFD group than in the ND group at 12 weeks after reoxygenation. The medial smooth muscle area was larger in the HFD group. Caspase-3 activity in the lung tissue of the HFD group was decreased, and the apoptosis of pulmonary smooth muscle cells was suppressed after reoxygenation. Moreover, the expression levels of peroxisome proliferator-activated receptor-γ and apelin were lower in the HFD group than in the ND group. CONCLUSIONS The results suggest that metabolic disorder may suppress pulmonary artery reverse remodeling in mice with hypoxia-induced PH during reoxygenation.
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MESH Headings
- Animals
- Apelin/metabolism
- Apoptosis
- Arterial Pressure
- Caspase 3/metabolism
- Diet, High-Fat/adverse effects
- Disease Models, Animal
- Female
- Hypertension, Pulmonary/etiology
- Hypertension, Pulmonary/metabolism
- Hypertension, Pulmonary/physiopathology
- Hypertension, Pulmonary/therapy
- Hypoxia/complications
- Mice, Inbred C57BL
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/physiopathology
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/pathology
- Obesity/etiology
- Obesity/metabolism
- Obesity/physiopathology
- Oxygen Inhalation Therapy
- PPAR gamma/metabolism
- Pulmonary Artery/metabolism
- Pulmonary Artery/physiopathology
- Vascular Remodeling
- Mice
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Affiliation(s)
- Koichi Sugimoto
- Department of Cardiovascular Medicine, Fukushima Medical University, Hikarigaoka 1, Fukushima, 960-1295, Japan.
- Department of Pulmonary Hypertension, Fukushima Medical University, Hikarigaoka 1, Fukushima, 960-1295, Japan.
| | - Tetsuro Yokokawa
- Department of Cardiovascular Medicine, Fukushima Medical University, Hikarigaoka 1, Fukushima, 960-1295, Japan
- Department of Pulmonary Hypertension, Fukushima Medical University, Hikarigaoka 1, Fukushima, 960-1295, Japan
| | - Tomofumi Misaka
- Department of Cardiovascular Medicine, Fukushima Medical University, Hikarigaoka 1, Fukushima, 960-1295, Japan
| | - Takashi Kaneshiro
- Department of Cardiovascular Medicine, Fukushima Medical University, Hikarigaoka 1, Fukushima, 960-1295, Japan
| | - Akiomi Yoshihisa
- Department of Cardiovascular Medicine, Fukushima Medical University, Hikarigaoka 1, Fukushima, 960-1295, Japan
| | - Kazuhiko Nakazato
- Department of Cardiovascular Medicine, Fukushima Medical University, Hikarigaoka 1, Fukushima, 960-1295, Japan
| | - Yasuchika Takeishi
- Department of Cardiovascular Medicine, Fukushima Medical University, Hikarigaoka 1, Fukushima, 960-1295, Japan
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6
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Inagaki T, Pearson JT, Tsuchimochi H, Schwenke DO, Saito S, Higuchi T, Masaki T, Umetani K, Shirai M, Nakaoka Y. Evaluation of right coronary vascular dysfunction in severe pulmonary hypertensive rats using synchrotron radiation microangiography. Am J Physiol Heart Circ Physiol 2021; 320:H1021-H1036. [PMID: 33481696 DOI: 10.1152/ajpheart.00327.2020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 01/06/2021] [Accepted: 01/06/2021] [Indexed: 11/22/2022]
Abstract
Pulmonary hypertension (PH) causes cardiac hypertrophy in the right ventricle (RV) and eventually leads to RV failure due to persistently elevated ventricular afterload. We hypothesized that the mechanical stress on the RV associated with increased afterload impairs vasodilator function of the right coronary artery (RCA) in PH. Coronary vascular response was assessed using microangiography with synchrotron radiation (SR) in two well-established PH rat models, monocrotaline injection or the combined exposure to chronic hypoxia and vascular endothelial growth factor receptor blockade with Su5416 (SuHx model). In the SuHx model, the effect of the treatment with the nonselective endothelin-1 receptor antagonist (ERA), macitentan, was also examined. Myocardial viability was determined in SuHx model rats, using 18F-FDG Positron emission tomography (PET) and magnetic resonance imaging (MRI). Endothelium-dependent and endothelium-independent vasodilator responses were significantly attenuated in the medium and small arteries of severe PH rats. ERA treatment significantly improved RCA vascular function compared with the untreated group. ERA treatment improved both the decrease in ejection fraction and the increased glucose uptake, and reduced RV remodeling. In addition, the upregulation of inflammatory genes in the RV was almost suppressed by ERA treatment. We found impairment of vasodilator responses in the RCA of severe PH rat models. Endothelin-1 activation in the RCA plays a major role in impaired vascular function in PH rats and is partially restored by ERA treatment. Treatment of PH with ERA may improve RV function in part by indirectly attenuating right heart afterload and in part by associated improvements in right coronary endothelial function.NEW & NOTEWORTHY We demonstrated for the first time the impairment of vascular responses in the right coronary artery (RCA) of the dysfunctional right heart in pulmonary hypertensive rats in vivo. Treatment with an endothelin-1 receptor antagonist ameliorated vascular dysfunction in the RCA, enabled tissue remodeling of the right heart, and improved cardiac function. Our results suggest that impaired RCA function might also contribute to the early progression to heart failure in patients with severe pulmonary arterial hypertension (PAH). The endothelium of the coronary vasculature might be considered as a potential target in treatments to prevent heart failure in severe patients with PAH.
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MESH Headings
- Animals
- Antihypertensive Agents/pharmacology
- Coronary Angiography
- Coronary Vessels/diagnostic imaging
- Coronary Vessels/drug effects
- Coronary Vessels/metabolism
- Coronary Vessels/physiopathology
- Disease Models, Animal
- Endothelin Receptor Antagonists/pharmacology
- Endothelin-1/genetics
- Endothelin-1/metabolism
- Hypertrophy, Right Ventricular/diagnostic imaging
- Hypertrophy, Right Ventricular/drug therapy
- Hypertrophy, Right Ventricular/metabolism
- Hypertrophy, Right Ventricular/physiopathology
- Hypoxia/complications
- Indoles
- Monocrotaline
- Predictive Value of Tests
- Pulmonary Arterial Hypertension/diagnostic imaging
- Pulmonary Arterial Hypertension/drug therapy
- Pulmonary Arterial Hypertension/metabolism
- Pulmonary Arterial Hypertension/physiopathology
- Pyrimidines/pharmacology
- Pyrroles
- Rats, Sprague-Dawley
- Severity of Illness Index
- Sulfonamides/pharmacology
- Synchrotrons
- Vasodilation/drug effects
- Ventricular Dysfunction, Right/diagnostic imaging
- Ventricular Dysfunction, Right/drug therapy
- Ventricular Dysfunction, Right/metabolism
- Ventricular Dysfunction, Right/physiopathology
- Ventricular Function, Right
- Ventricular Remodeling
- Rats
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Affiliation(s)
- Tadakatsu Inagaki
- Department of Vascular Physiology, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan
| | - James T Pearson
- Department of Cardiac Physiology, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan
- Biomedicine Discovery Institute and Department of Physiology, Monash University, Clayton, Australia
| | - Hirotsugu Tsuchimochi
- Department of Cardiac Physiology, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan
| | - Daryl O Schwenke
- Department of Physiology Heart-Otago, University of Otago, Dunedin, New Zealand
| | - Shigeyoshi Saito
- Department of Bio_Medical Imaging, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan
| | - Takahiro Higuchi
- Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
- Department of Nuclear Medicine, University Hospital Würzburg, Würzburg, Germany
| | - Takeshi Masaki
- Department of Vascular Physiology, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Keiji Umetani
- Japan Synchrotron Radiation Research Institute, Harima, Japan
| | - Mikiyasu Shirai
- Department of Cardiac Physiology, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan
- Department of Advanced Medical Research for Pulmonary Hypertension, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan
| | - Yoshikazu Nakaoka
- Department of Vascular Physiology, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
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7
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Caglayan E, Trappiel M, Behringer A, Berghausen EM, Odenthal M, Wellnhofer E, Kappert K. Pulmonary arterial remodelling by deficiency of peroxisome proliferator-activated receptor-γ in murine vascular smooth muscle cells occurs independently of obesity-related pulmonary hypertension. Respir Res 2019; 20:42. [PMID: 30813929 PMCID: PMC6391752 DOI: 10.1186/s12931-019-1003-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 02/11/2019] [Indexed: 11/30/2022] Open
Abstract
Background Obesity is associated with cardiovascular complications, including pulmonary hypertension (PH). Reports suggest that peroxisome proliferator-activated receptor-γ (PPARγ) has direct action in preventing vascular remodelling in PH. Here we dissected the specific role of high-fat-diet (HFD)-induced obesity and vascular smooth muscle cell (VSMC)-PPARγ for remodelling of small pulmonary arteries. Methods Wild-type (WT) and VSMC-specific PPARγ-knockout (SmPparγ−/−) mice were fed a low-fat-diet (LFD, 10% kcal from fat) or HFD (60% kcal from fat) for 24 weeks. Mice were metabolically phenotyped (e.g. weight development, insulin/glucose tolerance) at the beginning, and after 12 and 24 weeks, respectively. At 24 weeks additionally pulmonary pressure, heart structure, pulmonary vascular muscularization together with gene and protein expression in heart and lung tissues were determined. Results HFD increased right ventricular systolic pressure (RVSP) to a similar extent in WT and SmPparγ−/− mice. HFD decreased glucose tolerance and insulin sensitivity in both WT and SmPparγ−/− mice. Importantly, the increase in RVSP correlated with the degree of insulin resistance. However, VSMC-PPARγ deficiency increased pulmonary vascular muscularization independently of the diet-induced rise in RVSP. This increase was associated with elevated expression of early growth response protein 1 in heart and osteopontin in lung tissue. Conclusions Here we demonstrate a correlation of insulin resistance and pulmonary pressure. Further, deficiency of PPARγ in VSMCs diet-independently leads to increased pulmonary vascular muscularization.
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Affiliation(s)
- Evren Caglayan
- Klinik III für Innere Medizin, University of Cologne Heart Center, Cologne, Germany.,Center for Molecular Medine Cologne (CMMC), Cologne Cardiovascular Research Center (CCRC), University of Cologne, Cologne, Germany.,Department of Cardiology, University Medicine Rostock, Rostock, Germany
| | - Manuela Trappiel
- Berlin Institute of Health, Institute of Laboratory Medicine, Clinical Chemistry and Pathobiochemistry, Center for Cardiovascular Research (CCR), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Arnica Behringer
- Klinik III für Innere Medizin, University of Cologne Heart Center, Cologne, Germany.,Center for Molecular Medine Cologne (CMMC), Cologne Cardiovascular Research Center (CCRC), University of Cologne, Cologne, Germany
| | - Eva Maria Berghausen
- Klinik III für Innere Medizin, University of Cologne Heart Center, Cologne, Germany
| | | | - Ernst Wellnhofer
- Department of Cardiology, German Heart Center Berlin, Berlin, Germany
| | - Kai Kappert
- Berlin Institute of Health, Institute of Laboratory Medicine, Clinical Chemistry and Pathobiochemistry, Center for Cardiovascular Research (CCR), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany. .,DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany.
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8
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Willson C, Watanabe M, Tsuji-Hosokawa A, Makino A. Pulmonary vascular dysfunction in metabolic syndrome. J Physiol 2018; 597:1121-1141. [PMID: 30125956 DOI: 10.1113/jp275856] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 07/30/2018] [Indexed: 12/20/2022] Open
Abstract
Metabolic syndrome is a critically important precursor to the onset of many diseases, such as cardiovascular disease, and cardiovascular disease is the leading cause of death worldwide. The primary risk factors of metabolic syndrome include hyperglycaemia, abdominal obesity, dyslipidaemia, and high blood pressure. It has been well documented that metabolic syndrome alters vascular endothelial and smooth muscle cell functions in the heart, brain, kidney and peripheral vessels. However, there is less information available regarding how metabolic syndrome can affect pulmonary vascular function and ultimately increase an individual's risk of developing various pulmonary vascular diseases, such as pulmonary hypertension. Here, we review in detail how metabolic syndrome affects pulmonary vascular function.
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Affiliation(s)
- Conor Willson
- Department of Physiology, University of Arizona, Tucson, AZ, USA
| | - Makiko Watanabe
- Department of Physiology, University of Arizona, Tucson, AZ, USA
| | | | - Ayako Makino
- Department of Physiology, University of Arizona, Tucson, AZ, USA
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