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Wei C, Zhang J, Peng S, Liu J, Xu Y, Zhao M, Xu S, Pan W, Yin Z, Zheng Z, Qin JJ, Wan J, Wang M. Resolvin D1 attenuates Ang II-induced hypertension in mice by inhibiting the proliferation, migration and phenotypic transformation of vascular smooth muscle cells by blocking the RhoA/mitogen-activated protein kinase pathway. J Hypertens 2024; 42:420-431. [PMID: 37937508 PMCID: PMC10842678 DOI: 10.1097/hjh.0000000000003610] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 10/16/2023] [Accepted: 10/17/2023] [Indexed: 11/09/2023]
Abstract
The proliferation, migration and phenotypic transformation of vascular smooth muscle cells contribute to vascular remodeling and hypertension. Resolvin D1 (RvD1) is a specialized pro-resolving lipid mediator that has been shown to have anti-inflammatory effects and can protect against different cardiovascular diseases. However, the role and mechanism of RvD1 in hypertension are not clear. The current study investigated the role of RvD1 in Ang II-induced hypertensive mice and Ang II-stimulated rat vascular smooth muscle cells. The results showed that RvD1 treatment significantly attenuated hypertension and vascular remodeling, as indicated by decreases in blood pressure, aortic media thickness and collagen deposition. In addition, RvD1 inhibited the proliferation, migration and phenotypic transformation of vascular smooth muscle cells (VSMCs) in vivo and in vitro . Notably, the protective effects of RvD1 were mediated by the Ras homolog gene family member A (RhoA)/mitogen-activated protein kinase (MAPK) signaling pathway. In conclusion, our findings demonstrated the potential benefits of RvD1 as a promising therapeutic agent in the treatment of vascular remodeling and hypertension.
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Affiliation(s)
- Cheng Wei
- Department of Cardiology, Renmin Hospital of Wuhan University, Department of Geriatrics, Zhongnan Hospital of Wuhan University, Wuhan University
- Cardiovascular Research Institute, Wuhan University
- Hubei Key Laboratory of Cardiology
| | - Jishou Zhang
- Department of Cardiology, Renmin Hospital of Wuhan University, Department of Geriatrics, Zhongnan Hospital of Wuhan University, Wuhan University
- Cardiovascular Research Institute, Wuhan University
- Hubei Key Laboratory of Cardiology
| | - Shanshan Peng
- Department of Cardiology, Renmin Hospital of Wuhan University, Department of Geriatrics, Zhongnan Hospital of Wuhan University, Wuhan University
- Cardiovascular Research Institute, Wuhan University
- Hubei Key Laboratory of Cardiology
| | - Jianfang Liu
- Department of Cardiology, Renmin Hospital of Wuhan University, Department of Geriatrics, Zhongnan Hospital of Wuhan University, Wuhan University
- Cardiovascular Research Institute, Wuhan University
- Hubei Key Laboratory of Cardiology
| | - Yao Xu
- Department of Cardiology, Renmin Hospital of Wuhan University, Department of Geriatrics, Zhongnan Hospital of Wuhan University, Wuhan University
- Cardiovascular Research Institute, Wuhan University
- Hubei Key Laboratory of Cardiology
| | - Mengmeng Zhao
- Department of Cardiology, Renmin Hospital of Wuhan University, Department of Geriatrics, Zhongnan Hospital of Wuhan University, Wuhan University
- Cardiovascular Research Institute, Wuhan University
- Hubei Key Laboratory of Cardiology
| | - Shuwan Xu
- Department of Cardiology, Renmin Hospital of Wuhan University, Department of Geriatrics, Zhongnan Hospital of Wuhan University, Wuhan University
- Cardiovascular Research Institute, Wuhan University
- Hubei Key Laboratory of Cardiology
| | - Wei Pan
- Department of Cardiology, Renmin Hospital of Wuhan University, Department of Geriatrics, Zhongnan Hospital of Wuhan University, Wuhan University
- Cardiovascular Research Institute, Wuhan University
- Hubei Key Laboratory of Cardiology
| | - Zheng Yin
- Department of Cardiology, Renmin Hospital of Wuhan University, Department of Geriatrics, Zhongnan Hospital of Wuhan University, Wuhan University
- Cardiovascular Research Institute, Wuhan University
- Hubei Key Laboratory of Cardiology
| | - Zihui Zheng
- Department of Cardiology, Renmin Hospital of Wuhan University, Department of Geriatrics, Zhongnan Hospital of Wuhan University, Wuhan University
- Cardiovascular Research Institute, Wuhan University
- Hubei Key Laboratory of Cardiology
| | - Juan-Juan Qin
- Department of Geriatrics, Zhongnan Hospital of Wuhan University
- Center for Healthy Aging, Wuhan University School of Nursing, Wuhan, PR China
| | - Jun Wan
- Department of Cardiology, Renmin Hospital of Wuhan University, Department of Geriatrics, Zhongnan Hospital of Wuhan University, Wuhan University
- Cardiovascular Research Institute, Wuhan University
- Hubei Key Laboratory of Cardiology
| | - Menglong Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Department of Geriatrics, Zhongnan Hospital of Wuhan University, Wuhan University
- Cardiovascular Research Institute, Wuhan University
- Hubei Key Laboratory of Cardiology
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Jiang QL, Li T, Xu Q, Zeng Y, Wang W, Zhang BT, Yao QP, Jiang R, Jiang J. Methyl donor diet attenuates intimal hyperplasia after vascular injury in rats. J Nutr Biochem 2024; 123:109486. [PMID: 37844765 DOI: 10.1016/j.jnutbio.2023.109486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 09/16/2023] [Accepted: 10/12/2023] [Indexed: 10/18/2023]
Abstract
Environmental factors, particularly dietary habits, play an important role in cardiovascular disease susceptibility and progression through epigenetic modification. Previous studies have shown that hyperplastic vascular intima after endarterectomy is characterized by genome-wide hypomethylation. The purpose of this study was to investigate whether methyl donor diet affects intimal hyperplasia and the possible mechanisms involved. Intimal hyperplasia was induced in SD rats by carotid artery balloon injury. From 8 d before surgery to 28 d after surgery, the animals were fed a normal diet (ND) or a methyl donor diet (MD) supplemented with folic acid, vitamin B12, choline, betaine, and zinc. Carotid artery intimal hyperplasia was observed by histology, the effect of MD on carotid protein expression was analyzed by proteomics, functional clustering, signaling pathway, and upstream-downstream relationship of differentially expressed proteins were analyzed by bioinformatics. Results showed that MD attenuated balloon injury-induced intimal hyperplasia in rat carotid arteries. Proteomic analysis showed that there were many differentially expressed proteins in the common carotid arteries of rats fed with two different diets. The differentially expressed proteins are mainly related to the composition and function of the extracellular matrix (EMC), and changes in the EMC can lead to vascular remodeling by affecting fibrosis and stiffness of the blood vessel wall. Changes in the levels of vasculotropic proteins such as S100A9, ILF3, Serpinh1, Fbln5, LOX, HSPG2, and Fmod may be the reason why MD attenuates intimal hyperplasia. Supplementation with methyl donor nutrients may be a beneficial measure to prevent pathological vascular remodeling after injury.
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Affiliation(s)
- Qi-Lan Jiang
- Department of Clinical Nutrition, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Tao Li
- Key Laboratory of Medical Electrophysiology, Ministry of Education, Collaborative Innovation Center for Prevention and Treatment of Cardiovascular Disease/Institute of Cardiovascular Research, Southwest Medical University, Luzhou, Sichuan, China
| | - Qin Xu
- Department of General Surgery (Thyroid Surgery), the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Yang Zeng
- Department of Orthodontics, the Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Wei Wang
- Department of General Surgery (Thyroid Surgery), the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Bo-Tao Zhang
- Department of General Surgery (Thyroid Surgery), the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Qing-Ping Yao
- Institute of Mechanobiology & Medical Engineering, School of Life Science & Biotechnology, Shanghai Jiao Tong University, Shanghai, China.
| | - Rui Jiang
- Department of Urology, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China.
| | - Jun Jiang
- Department of General Surgery (Thyroid Surgery), the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China.
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Perla S, Kumar A. Epigenetic and transcriptional regulation of the human angiotensinogen gene by high salt. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.22.568343. [PMID: 38045346 PMCID: PMC10690268 DOI: 10.1101/2023.11.22.568343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
Hypertension is caused by a combination of genetic and environmental factors. Angiotensinogen (AGT) is a component of RAAS, that regulates blood pressure. The human angiotensinogen (hAGT) gene has -6A/-6G polymorphism and -6A variant is associated with human hypertension. In this study, we have investigated the epigenetic regulation of the hAGT. To understand transcriptional regulation of the hAGT, we have made transgenic animals containing -6A. We show that HS affects DNA methylation and modulates transcriptional regulation of this gene in liver and kidney. High salt (HS) increases hAGT gene expression in -6A TG mice. We have observed that the number of CpG sites in the hAGT promoter is decreased after HS treatment. In the liver, seven CpG sites are methylated whereas after HS treatment, only three CpG sites remain methylated. In the kidney, five CpG sites are methylated, whereas after HS treatment, only three CpG sites remain methylated. These results suggest that HS promotes DNA demethylation and increasing AGT gene expression. RT-PCR and immunoblot analysis show that hAGT gene expression is increased by HS. Chip assay has shown that transcription factors bind strongly after HS treatment. RNA-Seq identified differentially expressed genes, novel target genes associated with hypertension, top canonical pathways, upstream regulators. One of the plausible mechanisms for HS induced up-regulation of the hAGT gene is through IL-6/JAK/STAT3/AGT axis.
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Tan F, Long X, Du J, Yuan X. RNA-Seq transcriptomic landscape profiling of spontaneously hypertensive rats treated with a sodium-glucose cotransporter 2 (SGLT2) inhibitor. Biomed Pharmacother 2023; 166:115289. [PMID: 37572641 DOI: 10.1016/j.biopha.2023.115289] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 08/03/2023] [Accepted: 08/04/2023] [Indexed: 08/14/2023] Open
Abstract
BACKGROUND Sodium-glucose co-transporter-2 inhibitor (SGLT2i) are antihyperglycemic medications that reduce cardiovascular disease (CVD) and improve chronic kidney disease prognosis in patients with diabetes mellitus. The specific impact of SGLT2i treatment on hypertensive individuals, however, remains to be established. This underscores the need for systematic efforts to profile the molecular landscape associated with SGLT2i administration. METHODS We conducted a detailed RNA-sequencing (RNA-Seq)-based exploration of transcriptomic changes in response to empagliflozin in eight different tissues (i.e., atrium, aorta, ventricle, white adipose, brown adipose, kidney, lung, and brain) from a male rat model of spontaneously hypertension. Corresponding computational analyses (i.e., clustering, differentially-expressed genes [DEG], and functional association) were performed to analyze these data. Blood pressure measurements, tissue staining studies and RT-qPCR were performed to validate our in silico findings. RESULTS We discovered that empagliflozin exerted potent transcriptomic effects on various tissues, most notably the kidney, white adipose, and lung in spontaneously hypertension rats (SHR). The functional enrichment of DEGs indicated that empagliflozin may regulate blood pressure, blood glucose and lipid homeostasis in SHR. Consistent with our RNA-Seq findings, immunohistochemistry and qPCR analyses revealed decreased renal expression of mitogen-activated protein kinase 10 (MAPK10) and decreased pulmonary expression of the proinflammatory factors Legumain and cathepsin S (CTSS) at 1 month of empagliflozin administration. Notably, immunofluorescence experiments showed increased expression of the AMP-activated protein kinases Prkaa1 and Prkaa2 in white adipose tissue of SHR following empagliflozin therapy. Furthermore, the transcriptomic signatures of the blood pressure-lowing effect by empagliflozin were experimentally validated in SHR. CONCLUSIONS This study provided an important resource of the effects of empagliflozin on various tissues of SHRs. We identified tissue-specific and tissue-enriched transcriptomic signatures, and uncovered the beneficial effects of empagliflozin on hypertension, weight gain and inflammatory response in validated experiments.
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Affiliation(s)
- Fangyan Tan
- Department of Nephrology, the Second Affiliated Hospital of Chongqing Medical University, Chongqing 4000l0, China
| | - Xianglin Long
- Department of Cardiology, the Second Affiliated Hospital of Chongqing Medical University, Chongqing 400040, China
| | - Jianlin Du
- Department of Cardiology, the Second Affiliated Hospital of Chongqing Medical University, Chongqing 400040, China
| | - Xin Yuan
- Department of Nephrology, the Second Affiliated Hospital of Chongqing Medical University, Chongqing 4000l0, China.
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Okuno K, Torimoto K, Kuroda R, Cicalese SM, Okuno Y, Kono R, Marumoto S, Utsunomiya H, Eguchi S. Infused juice concentrate of Japanese plum Prunus mume attenuates inflammatory vascular remodeling in a mouse model of hypertension induced by angiotensin II. Hypertens Res 2023; 46:1923-1933. [PMID: 37308550 DOI: 10.1038/s41440-023-01332-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/20/2023] [Accepted: 05/13/2023] [Indexed: 06/14/2023]
Abstract
Fruit from the Prunus mume tree is a traditional food in Japan. Recently, bainiku-ekisu, an infused juice concentrate of Japanese Prunus mume, is attracting attention as a health promoting supplement. Angiotensin II (Ang II) plays a central role in development of hypertension. It has been reported that bainiku-ekisu treatment attenuates the growth-promoting signaling induced by Ang II in vascular smooth muscle cells. However, whether bainiku-ekisu has any effect on an animal model of hypertension remains unknown. Therefore, this study was designed to explore the potential anti-hypertensive benefit of bainiku-ekisu utilizing a mouse model of hypertension with Ang II infusion. Male C57BL/6 mice were infused with Ang II for 2 weeks and given 0.1% bainiku-ekisu containing water or normal water for 2 weeks with blood pressure evaluation. After 2 weeks, mice were euthanized, and the aortas were collected for evaluation of remodeling. Aortic medial hypertrophy was observed in control mice after Ang II infusion, which was attenuated in bainiku-ekisu group with Ang II infusion. Bainiku-ekisu further attenuated aortic induction of collagen producing cells and immune cell infiltration. Development of hypertension induced by Ang II was also prevented by bainiku-ekisu. Echocardiograph indicated protection of Ang II-induced cardiac hypertrophy by bainiku-ekisu. In vascular fibroblasts, bainiku-ekisu attenuated vascular cell adhesion molecule-1 induction, an endoplasmic reticulum stress marker, inositol requiring enzyme-1α phosphorylation, and enhancement in glucose consumption in response to Ang II. In conclusion, Bainiku-ekisu prevented Ang II-induced hypertension and inflammatory vascular remodeling. Potential cardiovascular health benefit to taking bainiku-ekisu should be further studied.
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Affiliation(s)
- Keisuke Okuno
- Department of Cardiovascular Science, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Keiichi Torimoto
- Department of Cardiovascular Science, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Ryohei Kuroda
- Department of Cardiovascular Science, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Stephanie M Cicalese
- Department of Cardiovascular Science, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Yoshiharu Okuno
- National Institute of Technology, Wakayama College, Gobo, Japan
| | - Ryohei Kono
- Department of Rehabilitation, Osaka Kawasaki Rehabilitation University, Kaizuka, Osaka, Japan
| | | | - Hirotoshi Utsunomiya
- Department of Rehabilitation, Osaka Kawasaki Rehabilitation University, Kaizuka, Osaka, Japan.
| | - Satoru Eguchi
- Department of Cardiovascular Science, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA.
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Rajendran NK, Liu W, Cahill PA, Redmond EM. Caveolin-1 inhibition mediates the opposing effects of alcohol on γ-secretase activity in arterial endothelial and smooth muscle cells. Physiol Rep 2023; 11:e15544. [PMID: 36635975 PMCID: PMC9837422 DOI: 10.14814/phy2.15544] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/01/2022] [Accepted: 12/04/2022] [Indexed: 04/18/2023] Open
Abstract
Notch is important to vessel homeostasis. We investigated the mechanistic role of caveolin-1 (Cav-1) in mediating the effects of alcohol (Ethanol/EtOH) on the γ-secretase proteolytic activity necessary for Notch signaling in vascular cells. Human coronary artery endothelial cells (HCAEC) were treated with EtOH (0-50 mM), Notch ligand delta-like ligand 4 (Dll4), and the γ-secretase inhibitor DAPT. EtOH stimulated Notch signaling in HCAEC as evidenced by increased Notch receptor (N1, N4) and target gene (hrt2, hrt3) mRNA levels with the most robust response achieved at 25 mM EtOH. Ethanol (25 mM) stimulated γ-secretase proteolytic activity, to the same extent as Dll4, in HCAEC membranes. Ethanol inhibited Cav-1 mRNA and protein levels in HCAEC. Caveolin-1 negatively regulated γ-secretase activity in HCAEC as Cav-1 knockdown stimulated it, while Cav-1 overexpression inhibited it. Moreover, Cav-1 overexpression blocked the stimulatory effect of EtOH on γ-secretase activity in HCAEC. Although EtOH also inhibited Cav-1 expression in human coronary artery smooth muscle cells (HCASMC), EtOH inhibited γ-secretase activity in HCASMC in contrast to its effect in HCAEC. The inhibitory effect of EtOH on γ-secretase in HCASMC was mimicked by Cav-1 knockdown and prevented by Cav-1 overexpression, suggesting that in these cells Cav-1 positively regulates γ-secretase activity. In conclusion, EtOH differentially regulates γ-secretase activity in arterial EC and SMC, being stimulatory and inhibitory, respectively. These effects are both mediated by caveolin-1 inhibition which itself has opposite effects on γ-secretase in the two cell types. This mechanism may underlie, in part, the effects of moderate drinking on atherosclerosis.
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Affiliation(s)
- Naresh K. Rajendran
- Department of SurgeryUniversity of Rochester Medical CenterRochesterNew YorkUSA
| | - Weimin Liu
- Department of SurgeryUniversity of Rochester Medical CenterRochesterNew YorkUSA
| | - Paul A. Cahill
- Vascular Biology and Therapeutics Laboratory, School of BiotechnologyDublin City UniversityDublinIreland
| | - Eileen M. Redmond
- Department of SurgeryUniversity of Rochester Medical CenterRochesterNew YorkUSA
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Cicalese S, Torimoto K, Okuno K, Elliott KJ, Rizzo V, Hashimoto T, Eguchi S. Endoplasmic Reticulum Chemical Chaperone 3-Hydroxy-2-Naphthoic Acid Reduces Angiotensin II-Induced Vascular Remodeling and Hypertension In Vivo and Protein Synthesis In Vitro. J Am Heart Assoc 2022; 11:e028201. [PMID: 36444851 PMCID: PMC9851446 DOI: 10.1161/jaha.122.028201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 10/28/2022] [Indexed: 11/30/2022]
Abstract
Background Investigations into alternative treatments for hypertension are necessary because current treatments cannot fully reduce the risk for the development of cardiovascular diseases. Chronic activation of unfolded protein response attributable to the endoplasmic reticulum stress has been proposed as a potential therapeutic target for hypertension and associated vascular remodeling. Triggered by the accumulation of misfolded proteins, chronic unfolded protein response leads to downstream signaling of cellular inflammation and dysfunction. Here, we have tested our hypothesis that a novel chemical chaperone, 3-hydroxy-2-naphthoic acid (3HNA) can attenuate angiotensin II (AngII)-induced vascular remodeling and hypertension. Methods and Results Mice were infused with AngII for 2 weeks to induce vascular remodeling and hypertension with or without 3HNA treatment. We found that injections of 3HNA prevented hypertension and increase in heart weight body weight ratio induced by AngII infusion. Histological assessment revealed that 3HNA treatment prevented vascular medial thickening as well as perivascular fibrosis in response to AngII infusion. In cultured vascular smooth muscle cells, 3HNA attenuated enhancement in protein synthesis induced by AngII. In vascular adventitial fibroblasts, 3HNA prevented induction of unfolded protein response markers. Conclusions We present evidence that a chemical chaperone 3HNA prevents vascular remodeling and hypertension in mice with AngII infusion, and 3HNA further prevents increase in protein synthesis in AngII-stimulated vascular smooth muscle cells. Using 3HNA may represent a novel therapy for hypertension with multiple benefits by preserving protein homeostasis under cardiovascular stress.
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Affiliation(s)
- Stephanie Cicalese
- Cardiovascular Research CenterLewis Katz School of Medicine at Temple UniversityPhiladelphiaPA
| | - Keiichi Torimoto
- Cardiovascular Research CenterLewis Katz School of Medicine at Temple UniversityPhiladelphiaPA
| | - Keisuke Okuno
- Cardiovascular Research CenterLewis Katz School of Medicine at Temple UniversityPhiladelphiaPA
| | - Katherine J. Elliott
- Cardiovascular Research CenterLewis Katz School of Medicine at Temple UniversityPhiladelphiaPA
| | - Victor Rizzo
- Cardiovascular Research CenterLewis Katz School of Medicine at Temple UniversityPhiladelphiaPA
| | - Tomoki Hashimoto
- Barrow Aneurysm and AVM Research Center, Departments of Neurosurgery and NeurobiologyBarrow Neurological InstitutePhoenixAZ
| | - Satoru Eguchi
- Cardiovascular Research CenterLewis Katz School of Medicine at Temple UniversityPhiladelphiaPA
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8
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Tian Y, Luo J, Xu Q, Liu Y, Cai R, Zhou MS. Macrophage depletion protects against endothelial dysfunction and cardiac remodeling in angiotensin II hypertensive mice. Clin Exp Hypertens 2021; 43:699-706. [PMID: 34176379 DOI: 10.1080/10641963.2021.1945075] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Objective: Hypertension is associated with a low-grade systemic inflammation in cardiovascular system. Macrophage infiltration may initiate an inflammatory process that contributes to vascular and ventricular remodeling in hypertensive human and mice. The present study investigated the effect of chemical depletion of macrophage using liposome encapsulated clodronate (LEC) on cardiac hypertrophy and remodeling in angiotensin (Ang) II hypertensive mice.Methods: C57BL/6 mice received an Ang II (1.1 mg/kg/day with a minipump) infusion for 2 weeks to induce hypertension. Endothelium-dependent relaxation (ED) was examined by organ bath, hematoxylin and staining and Masson-Trichrome staining were used to evaluate aorta and cardiac hypertrophy and fibrosis.Results: Ang II infusion significantly increased systolic blood pressure (SBP), cardiac hypertrophy and fibrosis, and impaired EDR accompanied by increased macrophage infiltration in the heart. Treatment with LEC significantly lowered Ang II-induced cardiac hypertrophy and fibrosis and cardiac macrophage infiltration, and improved EDR with a mild reduction in SBP. Ang II increased the expression of inflammatory cytokines tumor necross factor alpha and interleukin 1 beta and profibrotic factors transforming growth factor beta 1 and fibronectin in the heart, with was reduced by LEC treatment. Treatment with LEC prevented Ang II-induced the phosphorphorylation of ERK1/2 and c-Jun-N-terminal kinase.Conclusions: Our study suggests that cardiac macrophage may be critical for hypertensive cardiac hypertrophy and remodeling, the underlying mechanisms may involve initial heart inflammation and the activation of hypertrophic MAPKs pathway.
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Affiliation(s)
- Yuantong Tian
- The Open Project of Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University, Ganzhou, P.R. of China
| | - Jun Luo
- Department of Cardiology, Affiliated Ganzhou City Hospital, Nanchang Medical University, Ganzhou, P.R. of China
| | - Qian Xu
- Department of Physiology, Shenyang Medical University, Shenyang, P.R. of China
| | - Yueyang Liu
- Department of Physiology, Shenyang Medical University, Shenyang, P.R. of China
| | - Ruiping Cai
- Department of Physiology, Shenyang Medical University, Shenyang, P.R. of China
| | - Ming-Sheng Zhou
- Department of Physiology, Shenyang Medical University, Shenyang, P.R. Of China & the Open Project of Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Ministry of Education, Gannan Medical University. Ganzhou, P.R. of China
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9
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Nolze A, Köhler C, Ruhs S, Quarch K, Strätz N, Gekle M, Grossmann C. Calcineurin (PPP3CB) regulates angiotensin II-dependent vascular remodelling by potentiating EGFR signalling in mice. Acta Physiol (Oxf) 2021; 233:e13715. [PMID: 34228904 DOI: 10.1111/apha.13715] [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: 12/15/2020] [Revised: 06/08/2021] [Accepted: 07/03/2021] [Indexed: 12/14/2022]
Abstract
AIM This study investigates the role of calcineurin for angiotensin II (AngII)-induced vascular remodelling with the help of a mouse model lacking the catalytic beta subunit of calcineurin (PPP3CB KO). METHODS Wildtype (WT) and PPP3CB KO mice were treated for 4 weeks with AngII followed by assessment of blood pressure, histological evaluation of aortas and mRNA analysis of aortic genes PPP3CB-dependently regulated by AngII. Primary murine vascular smooth muscle cells (VSMCs) were used for qPCR, ELISA and Western Blot experiments as well as wound healing and cell proliferation assays. RESULTS Upon AngII treatment, PPP3CB KO mice showed less aortic media thickening, lumen dilation and systolic blood pressure compared to WT mice. Next-generation sequencing data of aortic tissue indicated an increase in extracellular matrix components (EMCs), cell migration and cell proliferation. A PPP3CB-dependent increase in EMC was confirmed by qPCR in aorta and VSMCs. PPP3CB-dependent stimulation of VSMC migration could be verified by wound healing assays but markers of enhanced cell proliferation were only detectable in aortic tissue of WT mice but not in isolated WT or KO VSMCs. We could demonstrate in VSMCs with pharmacological inhibitors that PPP3CB leads to enhanced heparin-binding EGF-like growth factor (HB-EGF) secretion, epidermal growth factor receptor (EGFR) activation and consecutive stimulation of transforming growth factor β(TGFβ) and connective tissue growth factor (CTGF) signalling that enhances collagen expression. CONCLUSION AngII-induced vascular remodelling involves PPP3CB, which leads to enhanced EMC production, VSMC migration and sustained increase in systolic blood pressure via HBEGF/EGFR-TGFβ-CTGF signalling.
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Affiliation(s)
- Alexander Nolze
- Julius‐Bernstein‐Institute of PhysiologyMartin Luther University Halle‐Wittenberg Halle Germany
| | - Conny Köhler
- Julius‐Bernstein‐Institute of PhysiologyMartin Luther University Halle‐Wittenberg Halle Germany
| | - Stefanie Ruhs
- Julius‐Bernstein‐Institute of PhysiologyMartin Luther University Halle‐Wittenberg Halle Germany
| | - Katja Quarch
- Julius‐Bernstein‐Institute of PhysiologyMartin Luther University Halle‐Wittenberg Halle Germany
| | - Nicole Strätz
- Julius‐Bernstein‐Institute of PhysiologyMartin Luther University Halle‐Wittenberg Halle Germany
| | - Michael Gekle
- Julius‐Bernstein‐Institute of PhysiologyMartin Luther University Halle‐Wittenberg Halle Germany
| | - Claudia Grossmann
- Julius‐Bernstein‐Institute of PhysiologyMartin Luther University Halle‐Wittenberg Halle Germany
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10
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The caveolin levels in cardiovascular disease. COR ET VASA 2021. [DOI: 10.33678/cor.2021.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Zhao K, Zhang J, Xu T, Yang C, Weng L, Wu T, Wu X, Miao J, Guo X, Tu J, Zhang D, Zhou B, Sun W, Kong X. Low-intensity pulsed ultrasound ameliorates angiotensin II-induced cardiac fibrosis by alleviating inflammation via a caveolin-1-dependent pathway. J Zhejiang Univ Sci B 2021; 22:818-838. [PMID: 34636186 DOI: 10.1631/jzus.b2100130] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
OBJECTIVES Cardiac hypertrophy and fibrosis are major pathological manifestations observed in left ventricular remodeling induced by angiotensin II (AngII). Low-intensity pulsed ultrasound (LIPUS) has been reported to ameliorate cardiac dysfunction and myocardial fibrosis in myocardial infarction (MI) through mechano-transduction and its downstream pathways. In this study, we aimed to investigate whether LIPUS could exert a protective effect by ameliorating AngII-induced cardiac hypertrophy and fibrosis and if so, to further elucidate the underlying molecular mechanisms. METHODS We used AngII to mimic animal and cell culture models of cardiac hypertrophy and fibrosis. LIPUS irradiation was applied in vivo for 20 min every 2 d from one week before mini-pump implantation to four weeks after mini-pump implantation, and in vitro for 20 min on each of two occasions 6 h apart. Cardiac hypertrophy and fibrosis levels were then evaluated by echocardiographic, histopathological, and molecular biological methods. RESULTS Our results showed that LIPUS could ameliorate left ventricular remodeling in vivo and cardiac fibrosis in vitro by reducing AngII-induced release of inflammatory cytokines, but the protective effects on cardiac hypertrophy were limited in vitro. Given that LIPUS increased the expression of caveolin-1 in response to mechanical stimulation, we inhibited caveolin-1 activity with pyrazolopyrimidine 2 (pp2) in vivo and in vitro. LIPUS-induced downregulation of inflammation was reversed and the anti-fibrotic effects of LIPUS were absent. CONCLUSIONS These results indicated that LIPUS could ameliorate AngII-induced cardiac fibrosis by alleviating inflammation via a caveolin-1-dependent pathway, providing new insights for the development of novel therapeutic apparatus in clinical practice.
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Affiliation(s)
- Kun Zhao
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Jing Zhang
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Tianhua Xu
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Chuanxi Yang
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Liqing Weng
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Tingting Wu
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Xiaoguang Wu
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Jiaming Miao
- Key Laboratory of Modern Acoustics, Department of Physics, Collaborative Innovation Center of Advanced Microstructure, Nanjing University, Nanjing 210093, China
| | - Xiasheng Guo
- Key Laboratory of Modern Acoustics, Department of Physics, Collaborative Innovation Center of Advanced Microstructure, Nanjing University, Nanjing 210093, China
| | - Juan Tu
- Key Laboratory of Modern Acoustics, Department of Physics, Collaborative Innovation Center of Advanced Microstructure, Nanjing University, Nanjing 210093, China
| | - Dong Zhang
- Key Laboratory of Modern Acoustics, Department of Physics, Collaborative Innovation Center of Advanced Microstructure, Nanjing University, Nanjing 210093, China
| | - Bin Zhou
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China. .,Departments of Genetics, Pediatrics, and Medicine (Cardiology), Wilf Cardiovascular Research Institute, Albert Einstein College of Medicine, Bronx, NY 10461, USA.
| | - Wei Sun
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
| | - Xiangqing Kong
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
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12
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Turner D, Kang C, Mesirca P, Hong J, Mangoni ME, Glukhov AV, Sah R. Electrophysiological and Molecular Mechanisms of Sinoatrial Node Mechanosensitivity. Front Cardiovasc Med 2021; 8:662410. [PMID: 34434970 PMCID: PMC8382116 DOI: 10.3389/fcvm.2021.662410] [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: 02/01/2021] [Accepted: 06/24/2021] [Indexed: 01/01/2023] Open
Abstract
The understanding of the electrophysiological mechanisms that underlie mechanosensitivity of the sinoatrial node (SAN), the primary pacemaker of the heart, has been evolving over the past century. The heart is constantly exposed to a dynamic mechanical environment; as such, the SAN has numerous canonical and emerging mechanosensitive ion channels and signaling pathways that govern its ability to respond to both fast (within second or on beat-to-beat manner) and slow (minutes) timescales. This review summarizes the effects of mechanical loading on the SAN activity and reviews putative candidates, including fast mechanoactivated channels (Piezo, TREK, and BK) and slow mechanoresponsive ion channels [including volume-regulated chloride channels and transient receptor potential (TRP)], as well as the components of mechanochemical signal transduction, which may contribute to SAN mechanosensitivity. Furthermore, we examine the structural foundation for both mechano-electrical and mechanochemical signal transduction and discuss the role of specialized membrane nanodomains, namely, caveolae, in mechanical regulation of both membrane and calcium clock components of the so-called coupled-clock pacemaker system responsible for SAN automaticity. Finally, we emphasize how these mechanically activated changes contribute to the pathophysiology of SAN dysfunction and discuss controversial areas necessitating future investigations. Though the exact mechanisms of SAN mechanosensitivity are currently unknown, identification of such components, their impact into SAN pacemaking, and pathological remodeling may provide new therapeutic targets for the treatment of SAN dysfunction and associated rhythm abnormalities.
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Affiliation(s)
- Daniel Turner
- Department of Medicine, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI, United States
| | - Chen Kang
- Cardiovascular Division, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO, United States
| | - Pietro Mesirca
- Institut de Génomique Fonctionnelle, Université de Montpellier, CNRS, INSERM, Montpellier, France
| | - Juan Hong
- Cardiovascular Division, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO, United States
| | - Matteo E Mangoni
- Institut de Génomique Fonctionnelle, Université de Montpellier, CNRS, INSERM, Montpellier, France
| | - Alexey V Glukhov
- Department of Medicine, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI, United States
| | - Rajan Sah
- Cardiovascular Division, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO, United States
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13
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Michell DL, Shihata WA, Andrews KL, Abidin NAZ, Jefferis AM, Sampson AK, Lumsden NG, Huet O, Parat MO, Jennings GL, Parton RG, Woollard KJ, Kaye DM, Chin-Dusting JPF, Murphy AJ. High intraluminal pressure promotes vascular inflammation via caveolin-1. Sci Rep 2021; 11:5894. [PMID: 33723357 PMCID: PMC7960707 DOI: 10.1038/s41598-021-85476-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 02/19/2021] [Indexed: 01/18/2023] Open
Abstract
The aetiology and progression of hypertension involves various endogenous systems, such as the renin angiotensin system, the sympathetic nervous system, and endothelial dysfunction. Recent data suggest that vascular inflammation may also play a key role in the pathogenesis of hypertension. This study sought to determine whether high intraluminal pressure results in vascular inflammation. Leukocyte adhesion was assessed in rat carotid arteries exposed to 1 h of high intraluminal pressure. The effect of intraluminal pressure on signaling mechanisms including reactive oxygen species production (ROS), arginase expression, and NFĸB translocation was monitored. 1 h exposure to high intraluminal pressure (120 mmHg) resulted in increased leukocyte adhesion and inflammatory gene expression in rat carotid arteries. High intraluminal pressure also resulted in a downstream signaling cascade of ROS production, arginase expression, and NFĸB translocation. This process was found to be angiotensin II-independent and mediated by the mechanosensor caveolae, as caveolin-1 (Cav1)-deficient endothelial cells and mice were protected from pressure-induced vascular inflammatory signaling and leukocyte adhesion. Cav1 deficiency also resulted in a reduction in pressure-induced glomerular macrophage infiltration in vivo. These findings demonstrate Cav1 is an important mechanosensor in pressure-induced vascular and renal inflammation.
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Affiliation(s)
- Danielle L Michell
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
- Department of Medicine, Monash University, Clayton, VIC, Australia
| | - Waled A Shihata
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia.
- Department of Medicine, Monash University, Clayton, VIC, Australia.
- Cardiovascular Disease Program, Biomedicine Discovery Institute, Monash University, Clayton, Australia.
| | - Karen L Andrews
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
- Cardiovascular Disease Program, Biomedicine Discovery Institute, Monash University, Clayton, Australia
- Department of Pharmacology, Monash University, Clayton, VIC, Australia
| | - Nurul Aisha Zainal Abidin
- Cardiovascular Disease Program, Biomedicine Discovery Institute, Monash University, Clayton, Australia
- Department of Pharmacology, Monash University, Clayton, VIC, Australia
| | | | | | | | - Olivier Huet
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
| | - Marie-Odile Parat
- School of Pharmacy, University of Queensland, St Lucia, QLD, Australia
| | | | - Robert G Parton
- Institute for Molecular Bioscience and Centre for Microscopy and Microanalysis, University of Queensland, St Lucia, QLD, Australia
| | - Kevin J Woollard
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
- Centre for Inflammatory Disease, Department of Immunology and Inflammation, Imperial College London, London, UK
| | - David M Kaye
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
| | - Jaye P F Chin-Dusting
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
- Department of Medicine, Monash University, Clayton, VIC, Australia
- Cardiovascular Disease Program, Biomedicine Discovery Institute, Monash University, Clayton, Australia
- Department of Pharmacology, Monash University, Clayton, VIC, Australia
| | - Andrew J Murphy
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
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14
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Cooper HA, Cicalese S, Preston KJ, Kawai T, Okuno K, Choi ET, Kasahara S, Uchida HA, Otaka N, Scalia R, Rizzo V, Eguchi S. Targeting mitochondrial fission as a potential therapeutic for abdominal aortic aneurysm. Cardiovasc Res 2021; 117:971-982. [PMID: 32384150 PMCID: PMC7898955 DOI: 10.1093/cvr/cvaa133] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 04/15/2020] [Accepted: 04/30/2020] [Indexed: 11/12/2022] Open
Abstract
AIMS Angiotensin II (AngII) is a potential contributor to the development of abdominal aortic aneurysm (AAA). In aortic vascular smooth muscle cells (VSMCs), exposure to AngII induces mitochondrial fission via dynamin-related protein 1 (Drp1). However, pathophysiological relevance of mitochondrial morphology in AngII-associated AAA remains unexplored. Here, we tested the hypothesis that mitochondrial fission is involved in the development of AAA. METHODS AND RESULTS Immunohistochemistry was performed on human AAA samples and revealed enhanced expression of Drp1. In C57BL6 mice treated with AngII plus β-aminopropionitrile, AAA tissue also showed an increase in Drp1 expression. A mitochondrial fission inhibitor, mdivi1, attenuated AAA size, associated aortic pathology, Drp1 protein induction, and mitochondrial fission but not hypertension in these mice. Moreover, western-blot analysis showed that induction of matrix metalloproteinase-2, which precedes the development of AAA, was blocked by mdivi1. Mdivi1 also reduced the development of AAA in apolipoprotein E-deficient mice infused with AngII. As with mdivi1, Drp1+/- mice treated with AngII plus β-aminopropionitrile showed a decrease in AAA compared to control Drp1+/+ mice. In abdominal aortic VSMCs, AngII induced phosphorylation of Drp1 and mitochondrial fission, the latter of which was attenuated with Drp1 silencing as well as mdivi1. AngII also induced vascular cell adhesion molecule-1 expression and enhanced leucocyte adhesion and mitochondrial oxygen consumption in smooth muscle cells, which were attenuated with mdivi1. CONCLUSION These data indicate that Drp1 and mitochondrial fission play salient roles in AAA development, which likely involves mitochondrial dysfunction and inflammatory activation of VSMCs.
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MESH Headings
- Aminopropionitrile
- Angiotensin II
- Animals
- Anti-Inflammatory Agents/pharmacology
- Aorta, Abdominal/drug effects
- Aorta, Abdominal/metabolism
- Aorta, Abdominal/pathology
- Aortic Aneurysm, Abdominal/chemically induced
- Aortic Aneurysm, Abdominal/metabolism
- Aortic Aneurysm, Abdominal/pathology
- Aortic Aneurysm, Abdominal/prevention & control
- Case-Control Studies
- Cell Adhesion/drug effects
- Cells, Cultured
- Disease Models, Animal
- Dynamins/genetics
- Dynamins/metabolism
- Humans
- Leukocytes/drug effects
- Leukocytes/metabolism
- Male
- Mice, Inbred C57BL
- Mice, Knockout, ApoE
- Mitochondria, Muscle/drug effects
- Mitochondria, Muscle/genetics
- Mitochondria, Muscle/metabolism
- Mitochondria, Muscle/pathology
- Mitochondrial Dynamics/drug effects
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/pathology
- Oxygen Consumption/drug effects
- Phosphorylation
- Quinazolinones/pharmacology
- Mice
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Affiliation(s)
- Hannah A Cooper
- Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
| | - Stephanie Cicalese
- Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
| | - Kyle J Preston
- Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
| | - Tatsuo Kawai
- Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
| | - Keisuke Okuno
- Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
| | - Eric T Choi
- Department of Surgery, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
| | - Shingo Kasahara
- Department of Cardiovascular Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
| | - Haruhito A Uchida
- Department of Chronic Kidney Disease and Cardiovascular Disease, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
| | - Nozomu Otaka
- Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
| | - Rosario Scalia
- Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
| | - Victor Rizzo
- Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
| | - Satoru Eguchi
- Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
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15
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Huang S, You S, Qian J, Dai C, Shen S, Wang J, Huang W, Liang G, Wu G. Myeloid differentiation 2 deficiency attenuates AngII-induced arterial vascular oxidative stress, inflammation, and remodeling. Aging (Albany NY) 2021; 13:4409-4427. [PMID: 33495414 PMCID: PMC7906178 DOI: 10.18632/aging.202402] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Accepted: 11/15/2020] [Indexed: 11/25/2022]
Abstract
Vascular remodeling is a pertinent target for cardiovascular therapy. Vascular smooth muscle cell (VSMC) dysfunction plays a key role in vascular remodeling. Myeloid differentiation 2 (MD2), a cofactor of toll-like receptor 4 (TLR4), is involved in atherosclerotic progress and cardiac remodeling via activation of chronic inflammation. In this study, we explored the role of MD2 in vascular remodeling using an Ang II-induced mouse model and cultured human aortic VSMCs. MD2 deficiency suppressed Ang II-induced vascular fibrosis and phenotypic switching of VSMCs without affecting blood pressure in mice. Mechanistically, MD2 deficiency prevented Ang II-induced expression of inflammatory cytokines and oxidative stress in mice and cultured VSMCs. Furthermore, MD2 deficiency reversed Ang II-activated MAPK signaling and Ang II-downregulated SIRT1 expression. Taken together, MD2 plays a significant role in Ang II-induced vascular oxidative stress, inflammation, and remodeling, indicating that MD2 is a potential therapeutic target for the treatment of vascular remodeling-related cardiovascular diseases.
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Affiliation(s)
- Shushi Huang
- Department of Cardiology, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China.,Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Shengban You
- Department of Cardiology, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jinfu Qian
- Department of Cardiology, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China.,Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Chengyi Dai
- Department of Cardiology, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China.,Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Siyuan Shen
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jun Wang
- Department of Cardiology, Affiliated Dingli Institute and Wenzhou Central Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Weijian Huang
- Department of Cardiology, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Guang Liang
- Department of Cardiology, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China.,Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China.,Department of Cardiology, Affiliated Dingli Institute and Wenzhou Central Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Gaojun Wu
- Department of Cardiology, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China
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16
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Potje SR, Paula TDC, Paulo M, Bendhack LM. The Role of Glycocalyx and Caveolae in Vascular Homeostasis and Diseases. Front Physiol 2021; 11:620840. [PMID: 33519523 PMCID: PMC7838704 DOI: 10.3389/fphys.2020.620840] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 12/15/2020] [Indexed: 12/14/2022] Open
Abstract
This review highlights recent findings about the role that endothelial glycocalyx and caveolae play in vascular homeostasis. We describe the structure, synthesis, and function of glycocalyx and caveolae in vascular cells under physiological and pathophysiological conditions. Special focus will be given in glycocalyx and caveolae that are associated with impaired production of nitric oxide (NO) and generation of reactive oxygen species (ROS). Such alterations could contribute to the development of cardiovascular diseases, such as atherosclerosis, and hypertension.
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Affiliation(s)
- Simone Regina Potje
- Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Tiago Dal-Cin Paula
- Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Michele Paulo
- Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Lusiane Maria Bendhack
- Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
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17
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Transduction Efficiency of Adenovirus Vectors in Endothelial Cells and Vascular Smooth Muscle Cells. J Cardiovasc Pharmacol 2021; 75:603-607. [PMID: 32168154 DOI: 10.1097/fjc.0000000000000821] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Adenoviral vectors are useful tools in manipulating a gene of interest in vitro and in vivo, including in the vascular system. The transduction efficiencies of adenoviral vectors in vascular cells such as endothelial cells (ECs) and vascular smooth muscle cells (VSMCs) are known to be lower than those in epithelial cell types. The effective entry for adenoviral vectors is primarily mediated through the coxsackievirus and adenovirus receptor (CAR), which has been shown to be expressed in both cell types. Cationic liposomes have been used to enhance adenovirus transduction efficiency in nonepithelial cells. Accordingly, the aim of this study is to obtain new information regarding differences in transduction efficiencies, cationic liposome sensitivity, and CAR expression between ECs and VSMCs. Using cultured rat aortic ECs and VSMCs, here, we have compared transduction efficiency of adenoviruses with or without inclusion of liposomes and CAR expression. A significant increase in basal transduction efficiency was observed in ECs compared with VSMCs. Cationic liposome polybrene enhanced transduction efficiency in VSMCs, whereas decreased efficiency was observed in ECs. Western blotting demonstrated expression of the CAR in ECs but not in VSMCs. Proteomic analysis and mouse aorta immunostaining further suggests significant expression of the CAR in ECs but not in VSMCs. In conclusion, adenoviruses can effectively transduce the gene of interest in aortic ECs likely because of abundant expression of the CAR, whereas cationic liposomes such as polybrene enhance the transduction efficiency in VSMCs lacking CAR expression.
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18
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Lin K, Luo W, Yan J, Shen S, Shen Q, Wang J, Guan X, Wu G, Huang W, Liang G. TLR2 regulates angiotensin II-induced vascular remodeling and EndMT through NF-κB signaling. Aging (Albany NY) 2020; 13:2553-2574. [PMID: 33318302 PMCID: PMC7880316 DOI: 10.18632/aging.202290] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 10/31/2020] [Indexed: 12/15/2022]
Abstract
Excessive vascular remodeling has been shown in hypertensive patients. In experimental models of hypertensive vascular injury, such as angiotensin II (Ang II) challenged mice, toll like receptor 2 (TLR2) initiates inflammatory responses. More recently, studies have reported atypical endothelial to mesenchymal transition (EndMT) in vascular injuries and inflammatory conditions. Here, we aimed to investigate whether TLR2 mediates Ang II-induced vascular inflammation and initiates EndMT. In a mouse model of angiotensin II-induced hypertension, we show that aortas exhibit increased medial thickening, fibrosis, and features of EndMT. These alterations were not observed in TLR2 knockout mice in response to Ang II. TLR2 silencing in cultured endothelial cells confirmed the essential role of TLR2 in Ang II-induced inflammatory factor induction, and EndMT-associated phenotypic change. Mechanistically, we found Ang II activates nuclear factor-κB signaling, inducing pro-inflammatory cytokine production, and mediates EndMT in both cultured endothelial cells and in mice. These studies illustrate a novel role of TLR2 in regulating Ang II-induced deleterious vascular remodeling through the induction of EndMT. The studies also suggest that TLR2 may be targeted to alleviate hypertension-associated vascular injury.
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Affiliation(s)
- Ke Lin
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China.,Department of Cardiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, Zhejiang, China
| | - Wu Luo
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China
| | - Jueqian Yan
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China
| | - Siyuan Shen
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China.,Department of Cardiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, Zhejiang, China
| | - Qirui Shen
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China
| | - Jun Wang
- Department of Cardiology, Wenzhou Central Hospital and Affiliated Dingli Clinical Institute, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China
| | - Xinfu Guan
- Affiliated Cangnan Hospital, Wenzhou Medical University, Cangnan 325800, Zhejiang, China
| | - Gaojun Wu
- Department of Cardiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, Zhejiang, China
| | - Weijian Huang
- Department of Cardiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, Zhejiang, China
| | - Guang Liang
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China.,Department of Cardiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, Zhejiang, China.,Affiliated Cangnan Hospital, Wenzhou Medical University, Cangnan 325800, Zhejiang, China
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19
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Ghantous CM, Kamareddine L, Farhat R, Zouein FA, Mondello S, Kobeissy F, Zeidan A. Advances in Cardiovascular Biomarker Discovery. Biomedicines 2020; 8:biomedicines8120552. [PMID: 33265898 PMCID: PMC7759775 DOI: 10.3390/biomedicines8120552] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 11/18/2020] [Accepted: 11/20/2020] [Indexed: 12/12/2022] Open
Abstract
Cardiovascular diseases are the leading causes of mortality worldwide. Among them, hypertension and its pathological complications pose a major risk for the development of other cardiovascular diseases, including heart failure and stroke. Identifying novel and early stage biomarkers of hypertension and other cardiovascular diseases is of paramount importance in predicting and preventing the major morbidity and mortality associated with these diseases. Biomarkers of such diseases or predisposition to their development are identified by changes in a specific indicator’s expression between healthy individuals and patients. These include changes in protein and microRNA (miRNA) levels. Protein profiling using mass spectrometry and miRNA screening utilizing microarray and sequencing have facilitated the discovery of proteins and miRNA as biomarker candidates. In this review, we summarized some of the different, promising early stage protein and miRNA biomarker candidates as well as the currently used biomarkers for hypertension and other cardiovascular diseases. Although a number of promising markers have been identified, it is unlikely that a single biomarker will unambiguously aid in the classification of these diseases. A multi-marker panel-strategy appears useful and promising for classifying and refining risk stratification among patients with cardiovascular disease.
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Affiliation(s)
- Crystal M. Ghantous
- Department of Nursing and Health Sciences, Faculty of Nursing and Health Sciences, Notre Dame University-Louaize, Keserwan 72, Lebanon;
| | - Layla Kamareddine
- Biomedical Sciences Department, College of Health Sciences, QU Health, Qatar University, Doha 2713, Qatar;
- Biomedical and Pharmaceutical Research Unit, QU Health, Qatar University, Doha 2713, Qatar
| | - Rima Farhat
- Department of Anatomy, Cell Biology and Physiology, Faculty of Medicine, American University of Beirut, Beirut 1107, Lebanon;
| | - Fouad A. Zouein
- Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, Beirut 1107, Lebanon;
| | - Stefania Mondello
- Oasi Research Institute-IRCCS, 94018 Troina, Italy;
- Department of Biomedical and Dental Sciences and Morpho-functional Imaging, University of Messina, 98125 Messina, Italy
| | - Firas Kobeissy
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine, American University of Beirut, Beirut 1107, Lebanon;
| | - Asad Zeidan
- Biomedical and Pharmaceutical Research Unit, QU Health, Qatar University, Doha 2713, Qatar
- Department of Basic Medical Science, Faculty of Medicine, QU Health, Qatar University, Doha 2713, Qatar
- Correspondence: ; Tel.: +97-431-309-19
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20
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Anagnostopoulou A, Camargo LL, Rodrigues D, Montezano AC, Touyz RM. Importance of cholesterol-rich microdomains in the regulation of Nox isoforms and redox signaling in human vascular smooth muscle cells. Sci Rep 2020; 10:17818. [PMID: 33082354 PMCID: PMC7575553 DOI: 10.1038/s41598-020-73751-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 09/15/2020] [Indexed: 12/20/2022] Open
Abstract
Vascular smooth muscle cell (VSMC) function is regulated by Nox-derived reactive oxygen species (ROS) and redox-dependent signaling in discrete cellular compartments. Whether cholesterol-rich microdomains (lipid rafts/caveolae) are involved in these processes is unclear. Here we examined the sub-cellular compartmentalization of Nox isoforms in lipid rafts/caveolae and assessed the role of these microdomains in VSMC ROS production and pro-contractile and growth signaling. Intact small arteries and primary VSMCs from humans were studied. Vessels from Cav-1-/- mice were used to test proof of concept. Human VSMCs express Nox1, Nox4, Nox5 and Cav-1. Cell fractionation studies showed that Nox1 and Nox5 but not Nox4, localize in cholesterol-rich fractions in VSMCs. Angiotensin II (Ang II) stimulation induced trafficking into and out of lipid rafts/caveolae for Nox1 and Nox5 respectively. Co-immunoprecipitation studies showed interactions between Cav-1/Nox1 but not Cav-1/Nox5. Lipid raft/caveolae disruptors (methyl-β-cyclodextrin (MCD) and Nystatin) and Ang II stimulation variably increased O2- generation and phosphorylation of MLC20, Ezrin-Radixin-Moesin (ERM) and p53 but not ERK1/2, effects recapitulated in Cav-1 silenced (siRNA) VSMCs. Nox inhibition prevented Ang II-induced phosphorylation of signaling molecules, specifically, ERK1/2 phosphorylation was attenuated by mellitin (Nox5 inhibitor) and Nox5 siRNA, while p53 phosphorylation was inhibited by NoxA1ds (Nox1 inhibitor). Ang II increased oxidation of DJ1, dual anti-oxidant and signaling molecule, through lipid raft/caveolae-dependent processes. Vessels from Cav-1-/- mice exhibited increased O2- generation and phosphorylation of ERM. We identify an important role for lipid rafts/caveolae that act as signaling platforms for Nox1 and Nox5 but not Nox4, in human VSMCs. Disruption of these microdomains promotes oxidative stress and Nox isoform-specific redox signalling important in vascular dysfunction associated with cardiovascular diseases.
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Affiliation(s)
- Aikaterini Anagnostopoulou
- Institute of Cardiovascular and Medical Sciences, British Heart Foundation Glasgow Cardiovascular Research Centre, University of Glasgow, 126 University Place, Glasgow, G12 8TA, UK
| | - Livia L Camargo
- Institute of Cardiovascular and Medical Sciences, British Heart Foundation Glasgow Cardiovascular Research Centre, University of Glasgow, 126 University Place, Glasgow, G12 8TA, UK
| | - Daniel Rodrigues
- Institute of Cardiovascular and Medical Sciences, British Heart Foundation Glasgow Cardiovascular Research Centre, University of Glasgow, 126 University Place, Glasgow, G12 8TA, UK
| | - Augusto C Montezano
- Institute of Cardiovascular and Medical Sciences, British Heart Foundation Glasgow Cardiovascular Research Centre, University of Glasgow, 126 University Place, Glasgow, G12 8TA, UK
| | - Rhian M Touyz
- Institute of Cardiovascular and Medical Sciences, British Heart Foundation Glasgow Cardiovascular Research Centre, University of Glasgow, 126 University Place, Glasgow, G12 8TA, UK.
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21
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Wang Q, Lao M, Xu Z, Ding M, Guo S, Li L. Caveolin‑1 modulates hypertensive vascular remodeling via regulation of the Notch pathway. Mol Med Rep 2020; 22:4320-4328. [PMID: 33000233 PMCID: PMC7533525 DOI: 10.3892/mmr.2020.11508] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 07/24/2020] [Indexed: 11/30/2022] Open
Abstract
Hypertension is one of the critical risk factors of cerebrovascular disease. Caveolin-1 (Cav-1) has been suggested to be involved in the development of hypertension; however, the underlying mechanism remains largely unknown. Therefore, the present study aimed to investigate the mechanism underlying Cav-1 in hypertension. In the present study, the hypertension model was induced by infusion of angiotensin II (Ang-II) in rats. Cell Counting Kit-8 assay was used to detect the viability of human umbilical vein endothelial cells (HUVECs). Flow cytometry was used to determine the apoptosis of HUVECs. Transmission electron microscopy was utilized to address the thickness of the vessel walls. Reverse transcription-quantitative PCR, western blotting and immunofluorescence staining were used to assess the mechanism of cav-1/Notch1 involved in hypertensive vascular remodeling. In the present study, an Ang-II-induced hypertension model was successfully established in rats. With this model, it was found that the expression levels of cav-1 and Notch1 were significantly increased in brain tissues in the hypertension group compared with the sham-operated group. In cultured HUVECs, knockdown of cav-1 regulated Ang-II-induced HUVEC viability and apoptosis, and modulated hypertensive vascular remodeling, which was mediated by the Notch pathway. The data of the present study demonstrated that the cav-1/Notch signaling plays an important role in the regulation of Ang-II-induced hypertension and vascular remodeling.
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Affiliation(s)
- Qian Wang
- Special Medical Service Center, The First Affiliated Hospital of Sun Yat‑Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Minxi Lao
- Special Medical Service Center, The First Affiliated Hospital of Sun Yat‑Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Zhen Xu
- Department of Rehabilitation, Sun Yat‑Sen Memorial Hospital, Sun Yat‑Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Meilin Ding
- Special Medical Service Center, The First Affiliated Hospital of Sun Yat‑Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Shaolei Guo
- Department of Neurosurgery, National Key Clinical Department and Key Discipline of Neurology, The First Affiliated Hospital of Sun Yat‑Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Ling Li
- Department of Neurology, National Key Clinical Department and Key Discipline of Neurology, The First Affiliated Hospital of Sun Yat‑Sen University, Guangzhou, Guangdong 510080, P.R. China
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22
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Yuan H, Wang D, Zhang Y, Geng J. Atorvastatin attenuates vascular remodelling in spontaneously hypertensive rats via the protein kinase D/extracellular signal-regulated kinase 5 pathway. Clin Exp Pharmacol Physiol 2020; 47:1429-1438. [PMID: 32259311 DOI: 10.1111/1440-1681.13319] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 03/15/2020] [Accepted: 03/30/2020] [Indexed: 01/20/2023]
Abstract
The present study was conducted to determine whether atorvastatin reduces hypertension-induced vascular remodelling and whether its effects involve protein kinase D (PKD) and extracellular signal-regulated kinase 5 (ERK5). We used 16-week-old spontaneously hypertensive rats (SHRs) and age-matched Wistar-Kyoto (WKY) rats. The blood pressure and serum lipid concentration were measured. Changes in the vascular morphology and histology were examined using H&E, Masson' s trichrome, and Sirius Red staining. The media thickness (MT), ratio of MT to lumen diameter (LD) (MT/LD), collagen volume fraction (CVF) and hydroxyproline content were measured to evaluate vascular remodelling. Atorvastatin (50 mg/kg/day) was administered for 8 weeks. Increased blood pressure and vascular remodelling were more prominent in SHRs than in WKY rats. SHRs also had elevated PKD and ERK5 activation. The systolic blood pressure, MT/LD ratio, and hydroxyproline content were positively correlated with the activation level of PKD and ERK5 in SHRs. Atorvastatin significantly attenuated the activation of PKD and ERK5. Overall, this study demonstrated that atorvastatin could reverse vascular remodelling in SHRs. The PKD/ERK5 signalling pathway might be important for elucidating the beneficial pleiotropic effects of atorvastatin on vascular remodelling.
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Affiliation(s)
- Haitao Yuan
- Department of Cardiology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - Deyu Wang
- Department of Cardiology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - Yuying Zhang
- Department of Cardiology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - Jing Geng
- Department of Cardiology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
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23
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Flavin adenine dinucleotide ameliorates hypertensive vascular remodeling via activating short chain acyl-CoA dehydrogenase. Life Sci 2020; 258:118156. [PMID: 32735886 DOI: 10.1016/j.lfs.2020.118156] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 07/07/2020] [Accepted: 07/23/2020] [Indexed: 11/23/2022]
Abstract
AIMS Flavin adenine dinucleotide (FAD), participates in fatty acid β oxidation as a cofactor, which has been confirmed to enhance SCAD activity and expression. However, the role of FAD on hypertensive vascular remodeling is unclear. In this study, we investigated the underlying mechanisms of FAD on vascular remodeling and endothelial homeostasis. MAIN METHODS Morphological examination of vascular remodeling were analyzed with hematoxylin and eosin (HE) staining, Verhoeff's Van Gieson (EVG) staing, Dihydroethidium (DHE) staining and Sirius red staining. HUVECs apoptotic rate was detected by flow cytometry and HUVECs reactive oxygen species (ROS) was detected by DHE-probe. Enzymatic reactions were used to detect SCAD enzyme activity. The protein level was detected by Western Blots, the mRNA level was detected by quantitative real-time PCR. KEY FINDINGS In vivo experiments, FAD significantly decreased blood pressure and ameliorated vascular remodeling by increasing SCAD expression, Nitric Oxide (NO) production and reducing ROS production. In vitro experiments, FAD protected against the tBHP induced injury in HUVEC, by increasing the activity of SCAD, increasing the elimination of free fatty acid (FFA), scavenging ROS, reducing apoptotic rate, thereby improving endothelial cell function. SIGNIFICANCE FAD has a new possibility for preventing and treating hypertensive vascular remodeling.
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24
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Boyer MJ, Kimura Y, Akiyama T, Baggett AY, Preston KJ, Scalia R, Eguchi S, Rizzo V. Endothelial cell-derived extracellular vesicles alter vascular smooth muscle cell phenotype through high-mobility group box proteins. J Extracell Vesicles 2020; 9:1781427. [PMID: 32944170 PMCID: PMC7480479 DOI: 10.1080/20013078.2020.1781427] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The vascular endothelium and smooth muscle form adjacent cellular layers that comprise part of the vascular wall. Each cell type can regulate the other’s structure and function through a variety of paracrine effectors. Extracellular vesicles (EVs) are released from and transit between cells constituting a novel means of cell–cell communication. Here, we characterized the proteome of EVs released from each vascular cell type and examined the extent to which these vesicles participate in endothelial-vascular smooth muscle cell (VSMC) communication. EVs were collected by ultracentrifugation from media of rat aortic endothelial and smooth muscle cells cultured under serum-free conditions. Vesicle morphology, size and concentration were evaluated by transmission electron microscopy and nanoparticle tracking analysis. Western blot as well as shot gun proteomic analyses revealed sets of proteins common to both endothelial- and smooth muscle-derived EVs as well as proteins unique to each vascular cell type. Functionally, endothelial-derived EVs stimulated vascular cell adhesion molecule-1 (VCAM-1) expression and enhanced leukocyte adhesion in VSMCs while smooth muscle EVs did not elicit similar effects in endothelial cells (ECs). EVs from ECs also induced protein synthesis and senescence in VSMCs. Proteomic analysis of VSMCs following exposure to EC-derived EVs revealed upregulation of several proteins including pro-inflammatory molecules, high-mobility group box (HMGB) 1 and HMGB2. Pharmacological blockade HMGB1 and HMGB2 and siRNA depletion of HMGB1 in smooth muscle cells attenuated VCAM-1 expression and leukocyte adhesion induced by EC EVs. These data suggest that EC-derived EVs can enhance signalling pathways which influence smooth muscle cell phenotype.
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Affiliation(s)
- Michael J Boyer
- Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Yayoi Kimura
- Advanced Medical Research Center, Yokohama City University, Yokohama, Japan
| | - Tomoko Akiyama
- Advanced Medical Research Center, Yokohama City University, Yokohama, Japan
| | - Ariele Y Baggett
- Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Kyle J Preston
- Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Rosario Scalia
- Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Satoru Eguchi
- Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Victor Rizzo
- Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
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25
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Jan HM, Chen YC, Yang TC, Ong LL, Chang CC, Muthusamy S, Abera AB, Wu MS, Gervay-Hague J, Mong KKT, Lin CH. Cholesteryl α-D-glucoside 6-acyltransferase enhances the adhesion of Helicobacter pylori to gastric epithelium. Commun Biol 2020; 3:120. [PMID: 32170208 PMCID: PMC7069968 DOI: 10.1038/s42003-020-0855-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 02/20/2020] [Indexed: 12/18/2022] Open
Abstract
Helicobacter pylori, the most common etiologic agent of gastric diseases including gastric cancer, is auxotrophic for cholesterol and has to hijack it from gastric epithelia. Upon uptake, the bacteria convert cholesterol to cholesteryl 6′-O-acyl-α-D-glucopyranoside (CAG) to promote lipid raft clustering in the host cell membranes. However, how CAG appears in the host to exert the pathogenesis still remains ambiguous. Herein we identified hp0499 to be the gene of cholesteryl α-D-glucopyranoside acyltransferase (CGAT). Together with cholesteryl glucosyltransferase (catalyzing the prior step), CGAT is secreted via outer membrane vesicles to the host cells for direct synthesis of CAG. This significantly enhances lipid rafts clustering, gathers adhesion molecules (including Lewis antigens and integrins α5, β1), and promotes more bacterial adhesion. Furthermore, the clinically used drug amiodarone was shown as a potent inhibitor of CGAT to effectively reduce the bacterial adhesion, indicating that CGAT is a potential target of therapeutic intervention. Jan et al. identify cholesteryl α-D- glucopyranoside acyltransferase as a key enzyme in Helicobacter pylori’s synthesis of cholesteryl 6’-O-acyl-α-D-glucopyranoside, which promotes bacterial adhesion. This study provides insights into the H. pylori-induced pathogenesis and therapeutic strategies against it.
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Affiliation(s)
- Hau-Ming Jan
- Institute of Biological Chemistry, Academia Sinica, No. 128 Academic Road Section 2, Nan-Kang, Taipei, 11529, Taiwan
| | - Yi-Chi Chen
- Institute of Biological Chemistry, Academia Sinica, No. 128 Academic Road Section 2, Nan-Kang, Taipei, 11529, Taiwan.,Department of Chemistry and Institute of Biochemical Sciences, National Taiwan University, Taipei, 10617, Taiwan
| | - Tsai-Chen Yang
- Institute of Biological Chemistry, Academia Sinica, No. 128 Academic Road Section 2, Nan-Kang, Taipei, 11529, Taiwan
| | - Lih-Lih Ong
- Institute of Biological Chemistry, Academia Sinica, No. 128 Academic Road Section 2, Nan-Kang, Taipei, 11529, Taiwan.,Department of Applied Chemistry, National Chiao Tung University, Hsin-Chu, 30010, Taiwan.,Sustainable Chemical Science and Technology, Taiwan International Graduate Program, Academia Sinica and National Chiao Tung University, Taipei, 11529, Taiwan
| | - Chia-Chen Chang
- Department of Applied Chemistry, National Chiao Tung University, Hsin-Chu, 30010, Taiwan
| | - Sasikala Muthusamy
- Institute of Biological Chemistry, Academia Sinica, No. 128 Academic Road Section 2, Nan-Kang, Taipei, 11529, Taiwan.,Molecular and Biological Agricultural Sciences, Taiwan International Graduate Program, Academia Sinica and National Chung-Hsing University, Taipei, 11529, Taiwan.,Graduate Institute of Biotechnology, National Chung-Hsing University, Taichung, 40227, Taiwan
| | - Andualem Bahiru Abera
- Institute of Biological Chemistry, Academia Sinica, No. 128 Academic Road Section 2, Nan-Kang, Taipei, 11529, Taiwan.,Molecular and Biological Agricultural Sciences, Taiwan International Graduate Program, Academia Sinica and National Chung-Hsing University, Taipei, 11529, Taiwan.,Graduate Institute of Biotechnology, National Chung-Hsing University, Taichung, 40227, Taiwan
| | - Ming-Shiang Wu
- Division of Gastroenterology, Department of Internal Medicine, National Taiwan University Hospital, Taipei, 10002, Taiwan
| | | | - Kwok-Kong Tony Mong
- Department of Applied Chemistry, National Chiao Tung University, Hsin-Chu, 30010, Taiwan.
| | - Chun-Hung Lin
- Institute of Biological Chemistry, Academia Sinica, No. 128 Academic Road Section 2, Nan-Kang, Taipei, 11529, Taiwan. .,Department of Chemistry and Institute of Biochemical Sciences, National Taiwan University, Taipei, 10617, Taiwan.
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26
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Tian J, Popal MS, Huang R, Zhang M, Zhao X, Zhang M, Song X. Caveolin as a Novel Potential Therapeutic Target in Cardiac and Vascular Diseases: A Mini Review. Aging Dis 2020; 11:378-389. [PMID: 32257548 PMCID: PMC7069461 DOI: 10.14336/ad.2019.09603] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Accepted: 06/03/2019] [Indexed: 12/27/2022] Open
Abstract
Caveolin, a structural protein of caveolae, play roles in the regulation of endothelial function, cellular lipid homeostasis, and cardiac function by affecting the activity and biogenesis of nitric oxide, and by modulating signal transduction pathways that mediate inflammatory responses and oxidative stress. In this review, we present the role of caveolin in cardiac and vascular diseases and the relevant signaling pathways involved. Furthermore, we discuss a novel therapeutic perspective comprising crosstalk between caveolin and autophagy.
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Affiliation(s)
- Jinfan Tian
- 1 Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Mohammad Sharif Popal
- 2 Department of Cardiac Surgery, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - RongChong Huang
- 3 Department of Cardiology, Beijing Friendship Hospital, Capital Medical University, Beijing 100010, China
| | - Min Zhang
- 1 Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Xin Zhao
- 1 Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Mingduo Zhang
- 1 Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Xiantao Song
- 1 Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
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27
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Li CC, Chen WX, Wang J, Xia M, Jia ZC, Guo C, Tang XQ, Li MX, Yin Y, Liu X, Feng H. Nicotinamide riboside rescues angiotensin II-induced cerebral small vessel disease in mice. CNS Neurosci Ther 2020; 26:438-447. [PMID: 31943833 PMCID: PMC7080427 DOI: 10.1111/cns.13276] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 11/08/2019] [Accepted: 11/23/2019] [Indexed: 12/20/2022] Open
Abstract
Aims Hypertension is a leading cause of cerebral small vessel disease (CSVD). Currently, treatments for CSVD are limited. Nicotinamide riboside (NR) can protect against vascular injury and cognitive impairment in neurodegenerative diseases. In this study, the protective effects of NR against angiotensin ‐ (Ang ‐)–induced CSVD were evaluated. Methods To explore the effects of NR in CSVD, C57BL/6 mice were infused with Ang ‐, and NR was added to the food of the mice for 28 days. Then, short‐term memory, blood‐brain barrier (BBB) integrity, and endothelial function were detected. Arteriole injury and glial activation were also evaluated. Results Our data showed that mice infused with Ang ‐ exhibited decreased short‐term memory function and BBB leakage due to decreased claudin‐5 expression and increased caveolae‐mediated endocytosis after 28 days. Furthermore, Ang ‐ decreased the expression of α‐smooth muscle actin (α‐SMA) and increased the expression of proliferating cell nuclear antigen (PCNA) in arterioles and decreased the expression of neurofilament 200 (NF200) and myelin basic protein (MBP) in the white matter. These CSVD‐related damages induced by Ang ‐ were inhibited by NR administration. Moreover, NR administration significantly reduced glial activation around the vessels. Conclusion Our results indicated that NR administration alleviated Ang ‐–induced CSVD by protecting BBB integrity, vascular remodeling, neuroinflammation, and white matter injury (WMI)–associated cognitive impairment.
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Affiliation(s)
- Cheng-Cheng Li
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China.,State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - Wei-Xiang Chen
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Jie Wang
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Min Xia
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Zheng-Cai Jia
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Chao Guo
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Xiao-Qin Tang
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Ming-Xi Li
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Yi Yin
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Xin Liu
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Hua Feng
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China.,Department of Neurosurgery Southwest Hospital, Collaborative Innovation Center for Brain Science, Third Military Medical University (Army Medical University), Chongqing, China
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28
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Hashimoto T, Isaji T, Hu H, Yamamoto K, Bai H, Santana JM, Kuo A, Kuwahara G, Foster TR, Hanisch JJ, Yatsula BA, Sessa WC, Hoshina K, Dardik A. Stimulation of Caveolin-1 Signaling Improves Arteriovenous Fistula Patency. Arterioscler Thromb Vasc Biol 2020; 39:754-764. [PMID: 30786746 DOI: 10.1161/atvbaha.119.312417] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Objective- Arteriovenous fistulae (AVF) are the most common access created for hemodialysis; however, many AVF fail to mature and require repeated intervention, suggesting a need to improve AVF maturation. Eph-B4 (ephrin type-B receptor 4) is the embryonic venous determinant that is functional in adult veins and can regulate AVF maturation. Cav-1 (caveolin-1) is the major scaffolding protein of caveolae-a distinct microdomain that serves as a mechanosensor at the endothelial cell membrane. We hypothesized that Cav-1 function is critical for Eph-B4-mediated AVF maturation. Approach and Results- In a mouse aortocaval fistula model, both Cav-1 mRNA and protein were increased in the AVF compared with control veins. Cav-1 KO (knockout) mice showed increased fistula wall thickening ( P=0.0005) and outward remodeling ( P<0.0001), with increased eNOS (endothelial NO synthase) activity compared with WT (wild type) mice. Ephrin-B2/Fc inhibited AVF outward remodeling in WT mice but not in Cav-1 KO mice and was maintained in Cav-1 RC (Cav-1 endothelial reconstituted) mice (WT, P=0.0001; Cav-1 KO, P=0.7552; Cav-1 RC, P=0.0002). Cavtratin-a Cav-1 scaffolding domain peptide-decreased AVF wall thickness in WT mice and in Eph-B4 het mice compared with vehicle alone (WT, P=0.0235; Eph-B4 het, P=0.0431); cavtratin also increased AVF patency (day 42) in WT mice ( P=0.0275). Conclusions- Endothelial Cav-1 mediates Eph-B4-mediated AVF maturation. The Eph-B4-Cav-1 axis regulates adaptive remodeling during venous adaptation to the fistula environment. Manipulation of Cav-1 function may be a translational strategy to enhance AVF patency.
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Affiliation(s)
- Takuya Hashimoto
- From the Vascular Biology and Therapeutics Program (T.H., T.I., H.H., K.Y., H.B., J.M.S., A.K., G.K., T.R.F., J.J.H., B.A.Y., W.C.S., A.D.), Yale School of Medicine, New Haven, CT.,Department of Surgery (T.H., T.I., H.H., K.Y., H.B., J.M.S., G.K., T.R.F., J.J.H., B.A.Y., A.D.), Yale School of Medicine, New Haven, CT.,Department of Surgery, VA Connecticut Healthcare System, West Haven (T.H., T.I., H.H., K.Y., H.B., T.R.F., A.D.).,Department of Vascular Surgery, University of Tokyo, Japan (T.H., T.I., K.Y., K.H.)
| | - Toshihiko Isaji
- From the Vascular Biology and Therapeutics Program (T.H., T.I., H.H., K.Y., H.B., J.M.S., A.K., G.K., T.R.F., J.J.H., B.A.Y., W.C.S., A.D.), Yale School of Medicine, New Haven, CT.,Department of Surgery (T.H., T.I., H.H., K.Y., H.B., J.M.S., G.K., T.R.F., J.J.H., B.A.Y., A.D.), Yale School of Medicine, New Haven, CT.,Department of Surgery, VA Connecticut Healthcare System, West Haven (T.H., T.I., H.H., K.Y., H.B., T.R.F., A.D.).,Department of Vascular Surgery, University of Tokyo, Japan (T.H., T.I., K.Y., K.H.)
| | - Haidi Hu
- From the Vascular Biology and Therapeutics Program (T.H., T.I., H.H., K.Y., H.B., J.M.S., A.K., G.K., T.R.F., J.J.H., B.A.Y., W.C.S., A.D.), Yale School of Medicine, New Haven, CT.,Department of Surgery (T.H., T.I., H.H., K.Y., H.B., J.M.S., G.K., T.R.F., J.J.H., B.A.Y., A.D.), Yale School of Medicine, New Haven, CT.,Department of Surgery, VA Connecticut Healthcare System, West Haven (T.H., T.I., H.H., K.Y., H.B., T.R.F., A.D.)
| | - Kota Yamamoto
- From the Vascular Biology and Therapeutics Program (T.H., T.I., H.H., K.Y., H.B., J.M.S., A.K., G.K., T.R.F., J.J.H., B.A.Y., W.C.S., A.D.), Yale School of Medicine, New Haven, CT.,Department of Surgery (T.H., T.I., H.H., K.Y., H.B., J.M.S., G.K., T.R.F., J.J.H., B.A.Y., A.D.), Yale School of Medicine, New Haven, CT.,Department of Surgery, VA Connecticut Healthcare System, West Haven (T.H., T.I., H.H., K.Y., H.B., T.R.F., A.D.).,Department of Vascular Surgery, University of Tokyo, Japan (T.H., T.I., K.Y., K.H.)
| | - Hualong Bai
- From the Vascular Biology and Therapeutics Program (T.H., T.I., H.H., K.Y., H.B., J.M.S., A.K., G.K., T.R.F., J.J.H., B.A.Y., W.C.S., A.D.), Yale School of Medicine, New Haven, CT.,Department of Surgery (T.H., T.I., H.H., K.Y., H.B., J.M.S., G.K., T.R.F., J.J.H., B.A.Y., A.D.), Yale School of Medicine, New Haven, CT.,Department of Surgery, VA Connecticut Healthcare System, West Haven (T.H., T.I., H.H., K.Y., H.B., T.R.F., A.D.)
| | - Jeans M Santana
- From the Vascular Biology and Therapeutics Program (T.H., T.I., H.H., K.Y., H.B., J.M.S., A.K., G.K., T.R.F., J.J.H., B.A.Y., W.C.S., A.D.), Yale School of Medicine, New Haven, CT.,Department of Surgery (T.H., T.I., H.H., K.Y., H.B., J.M.S., G.K., T.R.F., J.J.H., B.A.Y., A.D.), Yale School of Medicine, New Haven, CT
| | - Andrew Kuo
- From the Vascular Biology and Therapeutics Program (T.H., T.I., H.H., K.Y., H.B., J.M.S., A.K., G.K., T.R.F., J.J.H., B.A.Y., W.C.S., A.D.), Yale School of Medicine, New Haven, CT.,Department of Pharmacology (A.K., W.C.S.), Yale School of Medicine, New Haven, CT
| | - Go Kuwahara
- From the Vascular Biology and Therapeutics Program (T.H., T.I., H.H., K.Y., H.B., J.M.S., A.K., G.K., T.R.F., J.J.H., B.A.Y., W.C.S., A.D.), Yale School of Medicine, New Haven, CT.,Department of Surgery (T.H., T.I., H.H., K.Y., H.B., J.M.S., G.K., T.R.F., J.J.H., B.A.Y., A.D.), Yale School of Medicine, New Haven, CT
| | - Trenton R Foster
- From the Vascular Biology and Therapeutics Program (T.H., T.I., H.H., K.Y., H.B., J.M.S., A.K., G.K., T.R.F., J.J.H., B.A.Y., W.C.S., A.D.), Yale School of Medicine, New Haven, CT.,Department of Surgery (T.H., T.I., H.H., K.Y., H.B., J.M.S., G.K., T.R.F., J.J.H., B.A.Y., A.D.), Yale School of Medicine, New Haven, CT.,Department of Surgery, VA Connecticut Healthcare System, West Haven (T.H., T.I., H.H., K.Y., H.B., T.R.F., A.D.)
| | - Jesse J Hanisch
- From the Vascular Biology and Therapeutics Program (T.H., T.I., H.H., K.Y., H.B., J.M.S., A.K., G.K., T.R.F., J.J.H., B.A.Y., W.C.S., A.D.), Yale School of Medicine, New Haven, CT.,Department of Surgery (T.H., T.I., H.H., K.Y., H.B., J.M.S., G.K., T.R.F., J.J.H., B.A.Y., A.D.), Yale School of Medicine, New Haven, CT
| | - Bogdan A Yatsula
- From the Vascular Biology and Therapeutics Program (T.H., T.I., H.H., K.Y., H.B., J.M.S., A.K., G.K., T.R.F., J.J.H., B.A.Y., W.C.S., A.D.), Yale School of Medicine, New Haven, CT.,Department of Surgery (T.H., T.I., H.H., K.Y., H.B., J.M.S., G.K., T.R.F., J.J.H., B.A.Y., A.D.), Yale School of Medicine, New Haven, CT
| | - William C Sessa
- From the Vascular Biology and Therapeutics Program (T.H., T.I., H.H., K.Y., H.B., J.M.S., A.K., G.K., T.R.F., J.J.H., B.A.Y., W.C.S., A.D.), Yale School of Medicine, New Haven, CT.,Department of Pharmacology (A.K., W.C.S.), Yale School of Medicine, New Haven, CT
| | - Katsuyuki Hoshina
- Department of Vascular Surgery, University of Tokyo, Japan (T.H., T.I., K.Y., K.H.)
| | - Alan Dardik
- From the Vascular Biology and Therapeutics Program (T.H., T.I., H.H., K.Y., H.B., J.M.S., A.K., G.K., T.R.F., J.J.H., B.A.Y., W.C.S., A.D.), Yale School of Medicine, New Haven, CT.,Department of Surgery (T.H., T.I., H.H., K.Y., H.B., J.M.S., G.K., T.R.F., J.J.H., B.A.Y., A.D.), Yale School of Medicine, New Haven, CT.,Department of Surgery, VA Connecticut Healthcare System, West Haven (T.H., T.I., H.H., K.Y., H.B., T.R.F., A.D.)
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Zhang L, Wu JH, Huang TQ, Nepliouev I, Brian L, Zhang Z, Wertman V, Rudemiller NP, McMahon TJ, Shenoy SK, Miller FJ, Crowley SD, Freedman NJ, Stiber JA. Drebrin regulates angiotensin II-induced aortic remodelling. Cardiovasc Res 2019; 114:1806-1815. [PMID: 29931051 DOI: 10.1093/cvr/cvy151] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 06/14/2018] [Indexed: 01/07/2023] Open
Abstract
Aims The actin-binding protein Drebrin is up-regulated in response to arterial injury and reduces smooth muscle cell (SMC) migration and proliferation through its interaction with the actin cytoskeleton. We, therefore, tested the hypothesis that SMC Drebrin inhibits angiotensin II-induced remodelling of the proximal aorta. Methods and results Angiotensin II was administered via osmotic minipumps at 1000 ng/kg/min continuously for 28 days in SM22-Cre+/Dbnflox/flox (SMC-Dbn-/-) and control mice. Blood pressure responses to angiotensin II were assessed by telemetry. After angiotensin II infusion, we assessed remodelling in the proximal ascending aorta by echocardiography and planimetry of histological cross sections. Although the degree of hypertension was equivalent in SMC-Dbn-/- and control mice, SMC-Dbn-/- mice nonetheless exhibited 60% more proximal aortic medial thickening and two-fold more outward aortic remodelling than control mice in response to angiotensin II. Proximal aortas demonstrated greater cellular proliferation and matrix deposition in SMC-Dbn-/- mice than in control mice, as evidenced by a higher prevalence of proliferating cell nuclear antigen-positive nuclei and higher levels of collagen I. Compared with control mouse aortas, SMC-Dbn-/- aortas demonstrated greater angiotensin II-induced NADPH oxidase activation and inflammation, evidenced by higher levels of Ser-536-phosphorylated NFκB p65 subunits and higher levels of vascular cell adhesion molecule-1, matrix metalloproteinase-9, and adventitial macrophages. Conclusions We conclude that SMC Drebrin deficiency augments angiotensin II-induced inflammation and adverse aortic remodelling.
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Affiliation(s)
- Lisheng Zhang
- Department of Medicine, Duke University Medical Center, 2301 Erwin Road, Durham, NC, USA
| | - Jiao-Hui Wu
- Department of Medicine, Duke University Medical Center, 2301 Erwin Road, Durham, NC, USA
| | - Tai-Qin Huang
- Department of Medicine, Duke University Medical Center, 2301 Erwin Road, Durham, NC, USA
| | - Igor Nepliouev
- Department of Medicine, Duke University Medical Center, 2301 Erwin Road, Durham, NC, USA
| | - Leigh Brian
- Department of Medicine, Duke University Medical Center, 2301 Erwin Road, Durham, NC, USA
| | - Zhushan Zhang
- Department of Medicine, Duke University Medical Center, 2301 Erwin Road, Durham, NC, USA
| | - Virginia Wertman
- Department of Medicine, Duke University Medical Center, 2301 Erwin Road, Durham, NC, USA
| | - Nathan P Rudemiller
- Department of Medicine, Duke University Medical Center, 2301 Erwin Road, Durham, NC, USA
| | - Timothy J McMahon
- Department of Medicine, Duke University Medical Center, 2301 Erwin Road, Durham, NC, USA
| | - Sudha K Shenoy
- Department of Medicine, Duke University Medical Center, 2301 Erwin Road, Durham, NC, USA
| | - Francis J Miller
- Department of Medicine, Duke University Medical Center, 2301 Erwin Road, Durham, NC, USA
| | - Steven D Crowley
- Department of Medicine, Duke University Medical Center, 2301 Erwin Road, Durham, NC, USA
| | - Neil J Freedman
- Department of Medicine, Duke University Medical Center, 2301 Erwin Road, Durham, NC, USA
| | - Jonathan A Stiber
- Department of Medicine, Duke University Medical Center, 2301 Erwin Road, Durham, NC, USA
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30
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Shao J, Xu Y, Fang M. BRG1 deficiency in endothelial cells alleviates thioacetamide induced liver fibrosis in mice. Biochem Biophys Res Commun 2019; 521:212-219. [PMID: 31635808 DOI: 10.1016/j.bbrc.2019.10.109] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 10/12/2019] [Indexed: 12/11/2022]
Abstract
Liver sinusoidal endothelial cells play a key role maintaining the hepatic homeostasis, the disruption of which is associated with such end-stage liver diseases as hepatocellular carcinoma and cirrhosis. In the present study we investigated the role of brahma-related gene 1 (BRG1), a chromatin remodeling protein, in regulating endothelial transcription and the implication in liver fibrosis. We report that endothelial-specific deletion of BRG1 in mice attenuated liver fibrosis induced by injection with thioacetamide (TAA). Coincidently, alleviation of liver fibrosis as a result of endothelial BRG1 deletion was accompanied by an up-regulation of eNOS activity and NO bioavailability. In cultured endothelial cells, exposure to lipopolysaccharide (LPS) suppressed eNOS activity whereas BRG1 depletion with small interfering RNA restored eNOS-dependent NO production. Further analysis revealed that BRG1 was recruited to the caveolin-1 (CAV1) promoter by Sp1 and activated transcription of CAV1, which in turn inhibited eNOS activity. Mechanistically, BRG1 interacted with the H3K4 trimethyltransferase MLL1 to modulate H3K4 trimethylation surrounding the CAV1 promoter thereby contributing to LPS-induced CAV1 activation. In conclusion, our data unveil a novel role for BRG1 in the regulation of endothelial function and liver fibrosis.
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Affiliation(s)
- Jing Shao
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Yong Xu
- Institute of Biomedical Research, Liaocheng University, Liaocheng, China
| | - Mingming Fang
- Department of Clinical Medicine and Center for Experimental Medicine, Jiangsu Health Vocational College, Nanjing, China; Institute of Biomedical Research, Liaocheng University, Liaocheng, China.
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31
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Lian X, Matthaeus C, Kaßmann M, Daumke O, Gollasch M. Pathophysiological Role of Caveolae in Hypertension. Front Med (Lausanne) 2019; 6:153. [PMID: 31355199 PMCID: PMC6635557 DOI: 10.3389/fmed.2019.00153] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 06/20/2019] [Indexed: 12/02/2022] Open
Abstract
Caveolae, flask-shaped cholesterol-, and glycosphingolipid-rich membrane microdomains, contain caveolin 1, 2, 3 and several structural proteins, in particular Cavin 1-4, EHD2, pacsin2, and dynamin 2. Caveolae participate in several physiological processes like lipid uptake, mechanosensitivity, or signaling events and are involved in pathophysiological changes in the cardiovascular system. They serve as a specific membrane platform for a diverse set of signaling molecules like endothelial nitric oxide synthase (eNOS), and further maintain vascular homeostasis. Lack of caveolins causes the complete loss of caveolae; induces vascular disorders, endothelial dysfunction, and impaired myogenic tone; and alters numerous cellular processes, which all contribute to an increased risk for hypertension. This brief review describes our current knowledge on caveolae in vasculature, with special focus on their pathophysiological role in hypertension.
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Affiliation(s)
- Xiaoming Lian
- Experimental and Clinical Research Center—A Joint Cooperation Between the Charité–University Medicine Berlin and the Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany
| | - Claudia Matthaeus
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany
| | - Mario Kaßmann
- Experimental and Clinical Research Center—A Joint Cooperation Between the Charité–University Medicine Berlin and the Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany
| | - Oliver Daumke
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany
| | - Maik Gollasch
- Experimental and Clinical Research Center—A Joint Cooperation Between the Charité–University Medicine Berlin and the Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany
- Medical Clinic for Nephrology and Internal Intensive Care, Berlin, Germany
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32
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Lackner HK, Papousek I, Schmid-Zalaudek K, Cervar-Zivkovic M, Kolovetsiou-Kreiner V, Nonn O, Lucovnik M, Pfniß I, Moertl MG. Disturbed Cardiorespiratory Adaptation in Preeclampsia: Return to Normal Stress Regulation Shortly after Delivery? Int J Mol Sci 2019; 20:ijms20133149. [PMID: 31252672 PMCID: PMC6651868 DOI: 10.3390/ijms20133149] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 06/21/2019] [Accepted: 06/24/2019] [Indexed: 12/30/2022] Open
Abstract
Women with pregnancies complicated by preeclampsia appear to be at increased risk of metabolic and vascular diseases in later life. Previous research has also indicated disturbed cardiorespiratory adaptation during pregnancy. The aim of this study was to follow up on the physiological stress response in preeclampsia several weeks postpartum. A standardized laboratory test was used to illustrate potential deviations in the physiological stress responding to mildly stressful events of the kind and intensity in which they regularly occur in further everyday life after pregnancy. Fifteen to seventeen weeks postpartum, 35 women previously affected by preeclampsia (19 mild, 16 severe preeclampsia), 38 women after uncomplicated pregnancies, and 51 age-matched healthy controls were exposed to a self-relevant stressor in a standardized stress-reactivity protocol. Reactivity of blood pressure, heart rate, stroke index, and systemic vascular resistance index as well as baroreceptor sensitivity were analyzed. In addition, the mutual adjustment of blood pressure, heart rate, and respiration, partitioned for influences of the sympathetic and the parasympathetic branches of the autonomic nervous system, were quantified by determining their phase synchronization. Findings indicated moderately elevated blood pressure levels in the nonpathological range, reduced stroke volume, and elevated systemic vascular resistance in women previously affected by preeclampsia. Despite these moderate abnormalities, at the time of testing, women with previous preeclampsia did not differ from the other groups in their physiological response patterns to acute stress. Furthermore, no differences between early, preterm, and term preeclampsia or mild and severe preeclampsia were observed at the time of testing. The findings suggest that the overall cardiovascular responses to moderate stressors return to normal in women who experience a pregnancy with preeclampsia a few weeks after delivery, while the operating point of the arterial baroreflex is readjusted to a higher pressure. Yet, their regulation mechanisms may remain different.
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Affiliation(s)
- Helmut K Lackner
- Division of Physiology, Otto Loewi Research Center, Medical University of Graz, 8010 Graz, Austria.
| | - Ilona Papousek
- Department of Psychology, Biological Psychology Unit, University of Graz, 8010 Graz, Austria.
| | - Karin Schmid-Zalaudek
- Division of Physiology, Otto Loewi Research Center, Medical University of Graz, 8010 Graz, Austria.
| | - Mila Cervar-Zivkovic
- Department of Obstetrics and Gynecology, Medical University of Graz, 8036 Graz, Austria.
| | | | - Olivia Nonn
- Division of Cell Biology, Histology and Embryology, Gottfried Schatz Research Center, Medical University of Graz, 8010 Graz, Austria.
| | - Miha Lucovnik
- Department of Perinatology, Division of Obstetrics and Gynecology, University Medical Centre Ljubljana, 1000 Ljubljana, Slovenia.
| | - Isabella Pfniß
- Department of Obstetrics and Gynecology, Medical University of Graz, 8036 Graz, Austria.
| | - Manfred G Moertl
- Department of Obstetrics and Gynecology, Clinical Center, 9020 Klagenfurt, Austria.
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Yan FR, Zhu ZL, Mu YP, Zhuang XL, Lin DC, Wu ZJ, Gui LX, Lin MJ. Increased caveolin-1 expression enhances the receptor-operated Ca 2+ entry in the aorta of two-kidney, one-clip hypertensive rats. Exp Physiol 2019; 104:932-945. [PMID: 30840346 DOI: 10.1113/ep086924] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 02/25/2019] [Indexed: 12/12/2022]
Abstract
NEW FINDINGS What is the central question of this study? The aim was to examine and compare the contributions of caveolin-1 to the contractile responses mediated by L-type voltage-dependent calcium channels, store-operated Ca2+ channels and receptor-operated Ca2+ channels in two different types of arteries from two-kidney, one-clip hypertensive rats. What is the main finding and its importance? We demonstrated that the density of caveolae and caveolin-1 expression were significantly upregulated in the aorta of two-kidney, one-clip hypertensive rats, but not in the third-order branches of mesenteric arteries. We highlight that caveolin-1 plays an important role in aortic constriction by enhancing receptor-operated Ca2+ entry in the hypertensive rat model. ABSTRACT Calcium and its multiple regulatory mechanisms are crucial for the development of hypertension. Among these regulatory mechanisms, store-operated Ca2+ entry (SOCE) and receptor-operated Ca2+ entry (ROCE) mediate agonist-induced calcium influx, contributing to vascular contraction. The SOCE and ROCE are regulated by a variety of mechanisms involving caveolin-1 (Cav1), which has been found to be strongly associated with hypertension in gene polymorphism. In the present study, we investigated the role of Cav1 during the enhanced activity of calcium channels in hypertensive arteries. We demonstrated that the expression level of Cav1 was significantly increased in the aorta of two-kidney, one-clip (2K1C) hypertensive rats. The disruption of caveolae by methyl-β-cyclodextrin did not cause a marked difference in agonist-induced vasoconstriction in the third-order branches of the mesenteric arteries but strongly suppressed the aortic contractile response to endothelin-1 in the 2K1C group, which was not found in the control group. The increase in Cav1 by introduction of Cav1 scaffolding domain enhancing peptide promoted the 1-oleoyl-2-acetyl-glycerol-induced ROCE in hypertensive aortic smooth muscle cells but did not enhance the cyclopiazonic acid-induced SOCE. In the resistance arteries, similar changes were not observed, and no statistical changes of Cav1 expression were evident in the third-order branches of the mesenteric arteries. Our results indicate that increased Cav1 expression might promote the altered [Ca2+ ]i -induced aortic vasoreactivity by enhancing ROCE and be involved in the pathogenesis of hypertension.
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Affiliation(s)
- Fu-Rong Yan
- Key Laboratory of Fujian Province Universities on Ion Channel and Signal Transduction in Cardiovascular Diseases; Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, PR China.,Center for Molecular Diagnosis and Therapy, Respiratory Medicine Center of Fujian Province, Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, PR China
| | - Zhuang-Li Zhu
- Key Laboratory of Fujian Province Universities on Ion Channel and Signal Transduction in Cardiovascular Diseases; Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, PR China
| | - Yun-Ping Mu
- Key Laboratory of Fujian Province Universities on Ion Channel and Signal Transduction in Cardiovascular Diseases; Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, PR China.,Institute of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, Guangdong, PR China
| | - Xiao-Ling Zhuang
- Key Laboratory of Fujian Province Universities on Ion Channel and Signal Transduction in Cardiovascular Diseases; Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, PR China
| | - Da-Cen Lin
- Key Laboratory of Fujian Province Universities on Ion Channel and Signal Transduction in Cardiovascular Diseases; Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, PR China
| | - Zhi-Juan Wu
- Key Laboratory of Fujian Province Universities on Ion Channel and Signal Transduction in Cardiovascular Diseases; Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, PR China
| | - Long-Xin Gui
- Key Laboratory of Fujian Province Universities on Ion Channel and Signal Transduction in Cardiovascular Diseases; Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, PR China
| | - Mo-Jun Lin
- Key Laboratory of Fujian Province Universities on Ion Channel and Signal Transduction in Cardiovascular Diseases; Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, PR China
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Chinnakkannu P, Reese C, Gaspar JA, Panneerselvam S, Pleasant-Jenkins D, Mukherjee R, Baicu C, Tourkina E, Hoffman S, Kuppuswamy D. Suppression of angiotensin II-induced pathological changes in heart and kidney by the caveolin-1 scaffolding domain peptide. PLoS One 2018; 13:e0207844. [PMID: 30576317 PMCID: PMC6303044 DOI: 10.1371/journal.pone.0207844] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 11/07/2018] [Indexed: 01/15/2023] Open
Abstract
Dysregulation of the renin-angiotensin system leads to systemic hypertension and maladaptive fibrosis in various organs. We showed recently that myocardial fibrosis and the loss of cardiac function in mice with transverse aortic constriction (TAC) could be averted by treatment with the caveolin-1 scaffolding domain (CSD) peptide. Here, we used angiotensin II (AngII) infusion (2.1 mg/kg/day for 2 wk) in mice as a second model to confirm and extend our observations on the beneficial effects of CSD on heart and kidney disease. AngII caused cardiac hypertrophy (increased heart weight to body weight ratio (HW/BW) and cardiomyocyte cross-sectional area); fibrosis in heart and kidney (increased levels of collagen I and heat shock protein-47 (HSP47)); and vascular leakage (increased levels of IgG in heart and kidney). Echocardiograms of AngII-infused mice showed increased left ventricular posterior wall thickness (pWTh) and isovolumic relaxation time (IVRT), and decreased ejection fraction (EF), stroke volume (SV), and cardiac output (CO). CSD treatment (i.p. injections, 50 μg/mouse/day) of AngII-infused mice significantly suppressed all of these pathological changes in fibrosis, hypertrophy, vascular leakage, and ventricular function. AngII infusion increased β1 and β3 integrin levels and activated Pyk2 in both heart and kidney. These changes were also suppressed by CSD. Finally, bone marrow cell (BMC) isolated from AngII-infused mice showed hyper-migration toward SDF1. When AngII-infused mice were treated with CSD, BMC migration was reduced to the basal level observed in cells from control mice. Importantly, CSD did not affect the AngII-induced increase in blood pressure (BP), indicating that the beneficial effects of CSD were not mediated via normalization of BP. These results strongly indicate that CSD suppresses AngII-induced pathological changes in mice, suggesting that CSD can be developed as a treatment for patients with hypertension and pressure overload-induced heart failure.
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Affiliation(s)
- Panneerselvam Chinnakkannu
- Division of Cardiology, Department of Medicine, Gazes Cardiac Research Institute, Medical University of South Carolina, Charleston, South Carolina, United States of America
| | - Charles Reese
- Division of Rheumatology, Department of Medicine, Medical University of South Carolina, Charleston, South Carolina, United States of America
| | | | - Saraswathi Panneerselvam
- Division of Cardiology, Department of Medicine, Gazes Cardiac Research Institute, Medical University of South Carolina, Charleston, South Carolina, United States of America
| | - Dorea Pleasant-Jenkins
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, South Carolina, United States of America
| | - Rupak Mukherjee
- Division of Cardiothoracic Surgery, Department of Surgery, Medical University of South Carolina, Charleston, South Carolina, United States of America
| | - Catalin Baicu
- Division of Cardiology, Department of Medicine, Gazes Cardiac Research Institute, Medical University of South Carolina, Charleston, South Carolina, United States of America
| | - Elena Tourkina
- Division of Rheumatology, Department of Medicine, Medical University of South Carolina, Charleston, South Carolina, United States of America
| | - Stanley Hoffman
- Division of Rheumatology, Department of Medicine, Medical University of South Carolina, Charleston, South Carolina, United States of America
| | - Dhandapani Kuppuswamy
- Division of Cardiology, Department of Medicine, Gazes Cardiac Research Institute, Medical University of South Carolina, Charleston, South Carolina, United States of America
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35
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Forrester SJ, Booz GW, Sigmund CD, Coffman TM, Kawai T, Rizzo V, Scalia R, Eguchi S. Angiotensin II Signal Transduction: An Update on Mechanisms of Physiology and Pathophysiology. Physiol Rev 2018; 98:1627-1738. [PMID: 29873596 DOI: 10.1152/physrev.00038.2017] [Citation(s) in RCA: 621] [Impact Index Per Article: 103.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The renin-angiotensin-aldosterone system plays crucial roles in cardiovascular physiology and pathophysiology. However, many of the signaling mechanisms have been unclear. The angiotensin II (ANG II) type 1 receptor (AT1R) is believed to mediate most functions of ANG II in the system. AT1R utilizes various signal transduction cascades causing hypertension, cardiovascular remodeling, and end organ damage. Moreover, functional cross-talk between AT1R signaling pathways and other signaling pathways have been recognized. Accumulating evidence reveals the complexity of ANG II signal transduction in pathophysiology of the vasculature, heart, kidney, and brain, as well as several pathophysiological features, including inflammation, metabolic dysfunction, and aging. In this review, we provide a comprehensive update of the ANG II receptor signaling events and their functional significances for potential translation into therapeutic strategies. AT1R remains central to the system in mediating physiological and pathophysiological functions of ANG II, and participation of specific signaling pathways becomes much clearer. There are still certain limitations and many controversies, and several noteworthy new concepts require further support. However, it is expected that rigorous translational research of the ANG II signaling pathways including those in large animals and humans will contribute to establishing effective new therapies against various diseases.
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Affiliation(s)
- Steven J Forrester
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - George W Booz
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Curt D Sigmund
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Thomas M Coffman
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Tatsuo Kawai
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Victor Rizzo
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Rosario Scalia
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
| | - Satoru Eguchi
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University , Philadelphia, Pennsylvania ; Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center , Jackson, Mississippi ; Department of Pharmacology, Center for Hypertension Research, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa ; and Duke-NUS, Singapore and Department of Medicine, Duke University Medical Center , Durham, North Carolina
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36
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Lin M, Yuan W, Su Z, Lin C, Huang T, Chen Y, Wang J. Yes-associated protein mediates angiotensin II-induced vascular smooth muscle cell phenotypic modulation and hypertensive vascular remodelling. Cell Prolif 2018; 51:e12517. [PMID: 30156340 DOI: 10.1111/cpr.12517] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Revised: 06/22/2018] [Accepted: 07/17/2018] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVES Yes-associated protein (YAP) has been reported to regulate cell proliferation and differentiation. We aimed to characterize the role of YAP in angiotensin II (Ang II)-induced hypertensive vascular remodelling (HVR) and vascular smooth muscle cells (VSMCs) phenotypic modulation and to explore the underlying mechanisms. MATERIALS AND METHODS An HVR rat model was established by continuous Ang II infusion for 2 weeks. Western blotting, qRT-PCR, and confocal microscopy were conducted to assess YAP expression. YAP-shRNA interfering plasmid and adenovirus were constructed to knock down YAP. We used cell proliferation and migration assays, accompanied by pathway inhibitors, to evaluate the biological function and underlying mechanisms. RESULTS Ang II upregulated YAP expression in the media of carotid artery; however, in vivo YAP silencing significantly mitigated HVR, independent of the blood pressure level. Ang II upregulated YAP expression and promoted YAP nuclear accumulation in a dose- and time-dependent manner in rat VSMCs. YAP knockdown ameliorated Ang II-induced VSMCs phenotypic modulation. The regulation of YAP by Ang II could be blocked by pretreatment with angiotensin receptor type 1 antagonist losartan or F-actin depolymerizing agent latrunculin B but not the AT2R antagonist PD 123319. Disrupting the YAP-TEA domain (TEAD) interaction with verteporfin inhibited Ang II-induced VSMCs phenotypic modulation. CONCLUSIONS Yes-associated protein mediated angiotensin II-induced VSMCs phenotypic modulation and vascular remodelling. YAP is a potential therapeutic target for HVR beyond blood pressure control.
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Affiliation(s)
- Maohuan Lin
- Department of Cardiology, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China.,Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China
| | - Woliang Yuan
- Department of Cardiology, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China.,Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China
| | - Zizhuo Su
- Department of Cardiology, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China.,Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China
| | - Caina Lin
- Department of Rehabilitation Medicine, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Tucheng Huang
- Department of Cardiology, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China.,Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China
| | - Yangxin Chen
- Department of Cardiology, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China.,Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China
| | - Jingfeng Wang
- Department of Cardiology, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou, China.,Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China
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37
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Guo F, Yang L, Luo J, Quan H, Wang Z, Peng H, Hong C, Li J, Jiang Z, Zhang L, Qin X. Involvement of CGRP-RCP in the caveolin-1/ERK1/2 signal pathway in the static pressure-induced proliferation of vascular smooth muscle cells. J Cell Physiol 2018; 233:6910-6920. [PMID: 29741760 DOI: 10.1002/jcp.26582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 03/08/2018] [Indexed: 11/09/2022]
Abstract
Previous study suggested that the receptor component protein (RCP), one of the components of calcitonin gene-related peptide (CGRP) receptor, plays a multiple role in the cellular signal transduction. The study was designed to investigate whether or not the RCP involved in the regulation of caveolin-1/extracellular signal-regulated kinases-1 and -2 (ERK1/2) signal pathway in the vascular smooth muscle cells (VSMCs) proliferation induced by static pressure. Mouse-derived VSMCs line A10 (A10 VSMCs) was served as project in this experiment. Results showed that the A10 VSMCs viability and proliferating cell nuclear antigen (PCNA) expression which were increased by static pressure were inhibited by pretreatment of CGRP. In like manner, the expressions of the decreased-caveolin-1 and the increased-phosphorylated ERK1/2 (p-ERK1/2) induced by static pressure were significantly reversed by pretreatment of CGRP, respectively. Meanwhile, the expression of RCP was up-regulated by the static pressure. Silence of RCP gene with the small interrupt RNA (siRNA) not only significantly increased A10 VSMC proliferation but also increased the expression of p-ERK1/2 in response to static pressure. When treatment of A10 VSMCs with 120-mmHg static pressure for different time, however, the protein band of caveolin-1 and RCP was the least at time point of 10 min, but the p-ERK1/2 expression was the most maximum. In conclusion, RCP maybe involved in the static pressure-induced A10 VSMCs proliferation by regulation of caveolin-1/ERK1/2 signal pathway.
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Affiliation(s)
- Feng Guo
- Institute of Pharmacy and Pharmacology, Key Laboratory for Arteriosclerology of Hunan Province, University of South China, Hengyang, China
| | - Li Yang
- Institute of Pharmacy and Pharmacology, Key Laboratory for Arteriosclerology of Hunan Province, University of South China, Hengyang, China
| | - Jingfei Luo
- Institute of Pharmacy and Pharmacology, Key Laboratory for Arteriosclerology of Hunan Province, University of South China, Hengyang, China
| | - Haiyan Quan
- Institute of Pharmacy and Pharmacology, Key Laboratory for Arteriosclerology of Hunan Province, University of South China, Hengyang, China
| | - Zhen Wang
- Institute of Pharmacy and Pharmacology, Key Laboratory for Arteriosclerology of Hunan Province, University of South China, Hengyang, China
| | - Hongyan Peng
- Institute of Pharmacy and Pharmacology, Key Laboratory for Arteriosclerology of Hunan Province, University of South China, Hengyang, China
| | - Chenliang Hong
- Institute of Pharmacy and Pharmacology, Key Laboratory for Arteriosclerology of Hunan Province, University of South China, Hengyang, China
| | - Jie Li
- Institute of Pharmacy and Pharmacology, Key Laboratory for Arteriosclerology of Hunan Province, University of South China, Hengyang, China
| | - Zhisheng Jiang
- Institute of Pharmacy and Pharmacology, Key Laboratory for Arteriosclerology of Hunan Province, University of South China, Hengyang, China
| | - Liang Zhang
- Palmer Laboratory of Cell and Molecular Biology, Palmer College of Chiropractic, Port Orange, Florida
| | - Xuping Qin
- Institute of Pharmacy and Pharmacology, Key Laboratory for Arteriosclerology of Hunan Province, University of South China, Hengyang, China
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38
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Ytrehus K, Hulot JS, Perrino C, Schiattarella GG, Madonna R. Perivascular fibrosis and the microvasculature of the heart. Still hidden secrets of pathophysiology? Vascul Pharmacol 2018; 107:S1537-1891(17)30469-X. [PMID: 29709645 DOI: 10.1016/j.vph.2018.04.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2017] [Revised: 02/19/2018] [Accepted: 04/25/2018] [Indexed: 12/11/2022]
Abstract
Perivascular fibrosis, the deposition of connective tissue around the vessels, has been demonstrated crucially involved in the development of cardiac dysfunction. Although cardiac fibrosis has been shown to be reversible under certain experimental conditions, effective anti-fibrotic therapies remain largely elusive. Therefore, perivascular fibrosis currently represents a major therapeutic target for cardiovascular diseases. The main topic of this review will be to address the mechanisms underlying perivascular fibrosis of the vasculature within the myocardium, with a special focus on perivascular fibrosis of small vessels, microvascular dysfunction and disease.
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Affiliation(s)
- Kirsti Ytrehus
- Cardiovascular Research Group, Dept of Medical Biology, UiT The Arctic University of Norway, Norway.
| | - Jean-Sébastien Hulot
- INSERM, U970, Paris Cardiovascular Research Center (PARCC), Université Paris Descartes, Paris, France
| | - Cinzia Perrino
- Department of Advanced Biomedical Sciences, Federico II University, Naples, Italy
| | | | - Rosalinda Madonna
- Center of Aging Sciences and Translational Medicine - CESI-MeT, Institute of Cardiology, "G. d'Annunzio" University, Chieti, Italy; The Texas Heart Institute and Center for Cardiovascular Biology and Atherosclerosis Research, Department of Internal Medicine, The University of Texas Health Science Center at Houston, Houston, TX, United States
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39
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Eguchi S, Kawai T, Scalia R, Rizzo V. Understanding Angiotensin II Type 1 Receptor Signaling in Vascular Pathophysiology. Hypertension 2018; 71:804-810. [PMID: 29581215 DOI: 10.1161/hypertensionaha.118.10266] [Citation(s) in RCA: 125] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Satoru Eguchi
- From the Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA.
| | - Tatsuo Kawai
- From the Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA
| | - Rosario Scalia
- From the Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA
| | - Victor Rizzo
- From the Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA
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40
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Chen BC, Shibu MA, Kuo CH, Shen CY, Chang-Lee SN, Lai CH, Chen RJ, Yao CH, Viswanadha VP, Liu JS, Chen WK, Huang CY. E4BP4 inhibits AngII-induced apoptosis in H9c2 cardiomyoblasts by activating the PI3K-Akt pathway and promoting calcium uptake. Exp Cell Res 2018; 363:227-234. [PMID: 29331388 DOI: 10.1016/j.yexcr.2018.01.012] [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: 04/27/2017] [Revised: 01/06/2018] [Accepted: 01/09/2018] [Indexed: 01/28/2023]
Abstract
The bZIP transcription factor E4BP4 is a survival factor that is known to be elevated in diseased heart and promote cell survival. In this study the role of E4BP4 on angiotensin-II (AngII)-induced apoptosis has been examined in in vitro cell model. H9c2 cardiomyoblast cells that overexpressed E4BP4 were exposed to AngII to observe the cardio-protective effects of E4BP4 on hypertension related apoptosis. The results from TUNEL assays revealed that E4BP4 significantly attenuated AngII-induced apoptosis. Further analysis by Western blot and RT-PCR showed that E4BP4 inhibited AngII-induced IGF-II mRNA expression and cleavage of caspase-3 through the PI3K-Akt pathway. In addition, E4BP4 enhanced calcium reuptake into the sacroplasmic reticulum by down-regulating PP2A and by up-regulating the phosphorylation of PKA and PLB proteins. Our findings indicate that E4BP4 functions as a survival factor in cardiomyoblasts by inhibiting IGF-II transcription and by regulating calcium cycling.
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Affiliation(s)
- Bih-Cheng Chen
- School of Post-Baccalaureate Chinese Medicine, China Medical University, Taichung, Taiwan
| | | | - Chia-Hua Kuo
- Laboratory of Exercise Biochemistry, University of Taipei, Taipei, Taiwan
| | - Chia-Yao Shen
- Department of Nursing, Meiho University, Pingtung, Taiwan
| | - Shu Nu Chang-Lee
- Department of Healthcare Administration, Asia University, Taiwan
| | - Chao-Hung Lai
- Division of Cardiology, Department of Internal Medicine, Armed Force Taichung, General Hospital, Taichung 41152, Taiwan
| | - Ray-Jade Chen
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chun-Hsu Yao
- Department of Biomedical Imaging and Radiological Science, China Medical University, Taichung, Taiwan
| | | | - Jian-Shen Liu
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, China Medical University Beigang Hospital, Yunlin County, Taiwan; Department of Emergency Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Wei-Kung Chen
- School of Post-Baccalaureate Chinese Medicine, China Medical University, Taichung, Taiwan
| | - Chih-Yang Huang
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan; Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan; Graduate Institute of Chinese Medical Science, China Medical University, Taichung, Taiwan.
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41
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Yang K, Zhao M, Huang J, Zhang C, Zheng Q, Chen Y, Jiang H, Lu W, Wang J. Pharmacological activation of PPARγ inhibits hypoxia-induced proliferation through a caveolin-1-targeted and -dependent mechanism in PASMCs. Am J Physiol Cell Physiol 2018; 314:C428-C438. [PMID: 29351409 DOI: 10.1152/ajpcell.00143.2017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Previously, we and others have demonstrated that activation of peroxisome proliferator-activated receptor γ (PPARγ) by specific pharmacological agonists inhibits the pathogenesis of chronic hypoxia-induced pulmonary hypertension (CHPH) by suppressing the proliferation and migration in distal pulmonary arterial smooth muscle cells (PASMCs). Moreover, these beneficial effects of PPARγ are mediated by targeting the intracellular calcium homeostasis and store-operated calcium channel (SOCC) proteins, including the main caveolae component caveolin-1. However, other than the caveolin-1 targeted mechanism, in this study, we further uncovered a caveolin-1 dependent mechanism within the activation of PPARγ by the specific agonist GW1929. First, effective knockdown of caveolin-1 by small-interfering RNA (siRNA) markedly abolished the upregulation of GW1929 on PPARγ expression at both mRNA and protein levels; Then, in HEK293T, which has previously been reported with low endogenous caveolin-1 expression, exogenous expression of caveolin-1 significantly enhanced the upregulation of GW1929 on PPARγ expression compared with nontransfection control. In addition, inhibition of PPARγ by either siRNA or pharmacological inhibitor T0070907 led to increased phosphorylation of cellular mitogen-activated protein kinases ERK1/2 and p38. In parallel, GW1929 dramatically decreased the expression of the proliferative regulators (cyclin D1 and PCNA), whereas it increased the apoptotic factors (p21, p53, and mdm2) in hypoxic PASMCs. Furthermore, these effects of GW1929 could be partially reversed by recovery of the drug treatment. In combination, PPARγ activation by GW1929 reversibly drove the cell toward an antiproliferative and proapoptotic phenotype in a caveolin-1-dependent and -targeted mechanism.
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Affiliation(s)
- Kai Yang
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Diseases, The First Affiliated Hospital of Guangzhou Medical University , Guangzhou, Guangdong , China
| | - Mingming Zhao
- Laboratory of Molecular Biology and Immunology, National Institute on Aging, National Institutes of Health , Baltimore, Maryland
| | - Junyi Huang
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Diseases, The First Affiliated Hospital of Guangzhou Medical University , Guangzhou, Guangdong , China
| | - Chenting Zhang
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Diseases, The First Affiliated Hospital of Guangzhou Medical University , Guangzhou, Guangdong , China
| | - Qiuyu Zheng
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Diseases, The First Affiliated Hospital of Guangzhou Medical University , Guangzhou, Guangdong , China
| | - Yuqin Chen
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Diseases, The First Affiliated Hospital of Guangzhou Medical University , Guangzhou, Guangdong , China
| | - Haiyang Jiang
- Division of Pulmonary and Critical Care Medicine, The Johns Hopkins University School of Medicine , Baltimore, Maryland
| | - Wenju Lu
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Diseases, The First Affiliated Hospital of Guangzhou Medical University , Guangzhou, Guangdong , China
| | - Jian Wang
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Diseases, The First Affiliated Hospital of Guangzhou Medical University , Guangzhou, Guangdong , China.,Division of Translational and Regenerative Medicine, Department of Medicine, University of Arizona College of Medicine , Tucson, Arizona
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42
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Shihata WA, Putra MRA, Chin-Dusting JPF. Is There a Potential Therapeutic Role for Caveolin-1 in Fibrosis? Front Pharmacol 2017; 8:567. [PMID: 28970796 PMCID: PMC5609631 DOI: 10.3389/fphar.2017.00567] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 08/09/2017] [Indexed: 01/06/2023] Open
Abstract
Fibrosis is a process of dysfunctional wound repair, described by a failure of tissue regeneration and excessive deposition of extracellular matrix, resulting in tissue scarring and subsequent organ deterioration. There are a broad range of stimuli that may trigger, and exacerbate the process of fibrosis, which can contribute to the growing rates of morbidity and mortality. Whilst the process of fibrosis is widely described and understood, there are no current standard treatments that can reduce or reverse the process effectively, likely due to the continuing knowledge gaps surrounding the cellular mechanisms involved. Several cellular targets have been implicated in the regulation of the fibrotic process including membrane domains, ion channels and more recently mechanosensors, specifically caveolae, particularly since these latter contain various signaling components, such as members of the TGFβ and MAPK/ERK signaling pathways, all of which are key players in the process of fibrosis. This review explores the anti-fibrotic influences of the caveola, and in particular the key underpinning protein, caveolin-1, and its potential as a novel therapeutic target.
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Affiliation(s)
- Waled A Shihata
- Vascular Pharmacology Laboratory, Cardiovascular Disease Program, Department of Pharmacology, Biomedical Discovery Institute, Monash UniversityClayton, VIC, Australia.,Department of Medicine, Monash UniversityClayton, VIC, Australia.,Baker Heart and Diabetes InstituteMelbourne, VIC, Australia
| | - Mohammad R A Putra
- Vascular Pharmacology Laboratory, Cardiovascular Disease Program, Department of Pharmacology, Biomedical Discovery Institute, Monash UniversityClayton, VIC, Australia
| | - Jaye P F Chin-Dusting
- Vascular Pharmacology Laboratory, Cardiovascular Disease Program, Department of Pharmacology, Biomedical Discovery Institute, Monash UniversityClayton, VIC, Australia.,Department of Medicine, Monash UniversityClayton, VIC, Australia.,Baker Heart and Diabetes InstituteMelbourne, VIC, Australia
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