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Guan X, Wu J, Geng J, Ji D, Wei D, Ling Y, Zhang Y, Jiang G, Pang T, Huang Z. A Novel Hybrid of Telmisartan and Borneol Ameliorates Neuroinflammation and White Matter Injury in Ischemic Stroke Through ATF3/CH25H Axis. Transl Stroke Res 2024; 15:195-218. [PMID: 36577854 DOI: 10.1007/s12975-022-01121-5] [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: 04/27/2022] [Revised: 12/20/2022] [Accepted: 12/23/2022] [Indexed: 12/30/2022]
Abstract
Cerebral ischemic stroke causes substantial white matter injury, which is further aggravated by neuroinflammation mediated by microglia/astrocytes. Given the anti-neuroinflammatory action of telmisartan and the enhancing blood-brain barrier (BBB) permeability potential of resuscitation-inducing aromatic herbs, 13 hybrids (3a-m) of telmisartan (or its simplified analogues) with resuscitation-inducing aromatic agents were designed, synthesized, and biologically evaluated. Among them, the optimal compound 3a (the ester hybrid of telmisartan and (+)-borneol) potently inhibited neuroinflammation mediated by microglia/astrocytes and ameliorated ischemic stroke. Particularly, 3a significantly conferred protection for white matter integrity after cerebral ischemic stroke via decreasing abnormally dephosphorylated neurofilament protein, upregulating myelin basic protein, and attenuating oligodendrocyte damage. Further RNA-sequencing data revealed that 3a upregulated expression of transcriptional regulator ATF3 to reduce the expression of CH25H, prevented proinflammatory state of lipid-droplet-accumulating microglia/astrocytes to limit excessive inflammation, and eventually protected neighboring oligodendrocytes to prevent white matter injury. Taken with the desirable pharmacokinetics behavior and improved brain distribution, 3a may be a feasible therapeutic agent for ischemic stroke and other neurological disorders with white matter injury.
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Affiliation(s)
- Xin Guan
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Drug Discovery, New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, Institute of Pharmaceutical Sciences, China Pharmaceutical University, #24 Tong Jia Xiang Street, Nanjing, 210009, People's Republic of China
| | - Jianbing Wu
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Drug Discovery, New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, Institute of Pharmaceutical Sciences, China Pharmaceutical University, #24 Tong Jia Xiang Street, Nanjing, 210009, People's Republic of China
| | - Jiahui Geng
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Drug Discovery, New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, Institute of Pharmaceutical Sciences, China Pharmaceutical University, #24 Tong Jia Xiang Street, Nanjing, 210009, People's Republic of China
| | - Duorui Ji
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Drug Discovery, New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, Institute of Pharmaceutical Sciences, China Pharmaceutical University, #24 Tong Jia Xiang Street, Nanjing, 210009, People's Republic of China
| | - Dasha Wei
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Drug Discovery, New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, Institute of Pharmaceutical Sciences, China Pharmaceutical University, #24 Tong Jia Xiang Street, Nanjing, 210009, People's Republic of China
| | - Yong Ling
- School of Pharmacy, Nantong University, Nantong, 226001, People's Republic of China
| | - Yihua Zhang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Drug Discovery, New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, Institute of Pharmaceutical Sciences, China Pharmaceutical University, #24 Tong Jia Xiang Street, Nanjing, 210009, People's Republic of China
| | - Guojun Jiang
- Department of Pharmacy, Zhejiang Xiaoshan Hospital, Hangzhou, 311201, People's Republic of China
| | - Tao Pang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Drug Discovery, New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, Institute of Pharmaceutical Sciences, China Pharmaceutical University, #24 Tong Jia Xiang Street, Nanjing, 210009, People's Republic of China.
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, 210023, People's Republic of China.
| | - Zhangjian Huang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Drug Discovery, New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, Institute of Pharmaceutical Sciences, China Pharmaceutical University, #24 Tong Jia Xiang Street, Nanjing, 210009, People's Republic of China.
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Systematic analysis of nutrigenomic effects of polyphenols related to cardiometabolic health in humans - Evidence from untargeted mRNA and miRNA studies. Ageing Res Rev 2022; 79:101649. [PMID: 35595185 DOI: 10.1016/j.arr.2022.101649] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 04/15/2022] [Accepted: 05/13/2022] [Indexed: 12/12/2022]
Abstract
Cardiovascular and metabolic disorders present major causes of mortality in the ageing population. Polyphenols present in human diets possess cardiometabolic protective properties, however their underlying molecular mechanisms in humans are still not well identified. Even though preclinical and in vitro studies advocate that these bioactives can modulate gene expression, most studies were performed using targeted approaches. With the objective to decipher the molecular mechanisms underlying polyphenols cardiometabolic preventive properties in humans, we performed integrative multi-omic bioinformatic analyses of published studies which reported improvements of cardiometabolic risk factors following polyphenol intake, together with genomic analyses performed using untargeted approach. We identified 5 studies within our criteria and nearly 5000 differentially expressed genes, both mRNAs and miRNAs, in peripheral blood cells. Integrative bioinformatic analyses (e.g. pathway and gene network analyses, identification of transcription factors, correlation of gene expression profiles with those associated with diseases and drug intake) revealed that these genes are involved in the processes such as cell adhesion and mobility, immune system, metabolism, or cell signaling. We also identified 27 miRNAs known to regulate processes such as cell cytoskeleton, chemotaxis, cell signaling, or cell metabolism. Gene expression profiles negatively correlated with expression profiles of cardiovascular disease patients, while a positive correlation was observed with gene expression profiles following intake of drugs against cardiometabolic disorders. These analyses further advocate for health protective effects of these bioactives against age-associated diseases. In conclusion, polyphenols can exert multi-genomic modifications in humans and use of untargeted methods coupled with bioinformatic analyses represent the best approach to decipher molecular mechanisms underlying healthy-ageing effects of these bioactives.
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The Quality Changes and Proteomic Analysis of Cattle Muscle Postmortem during Rigor Mortis. Foods 2022; 11:foods11020217. [PMID: 35053949 PMCID: PMC8775072 DOI: 10.3390/foods11020217] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 12/26/2021] [Accepted: 01/08/2022] [Indexed: 01/19/2023] Open
Abstract
Rigor mortis occurs in a relatively early postmortem period and is a complex biochemical process in the conversion of muscle to meat. Understanding the quality changes and biomarkers during rigor mortis can provide a theoretical basis for maintaining and improving meat quality. Herein, a tandem mass tag proteomic method is used to investigate the effects of differentially expressed proteins on the meat quality of cattle Longissimus lumborum muscle postmortem (0, 6, and 24 h). The pH, total sulfhydryl content and sarcomere length decrease significantly during storage. In contrast, meat color values (L*, a*, and b*) and the myofibril fragmentation index increase significantly. Altogether, 147 differentially expressed proteins are identified, most being categorized as metabolic enzymes, mitochondrial proteins, necroptosis and ferroptosis proteins and structural proteins. The results also reveal additional proteins that are potentially involved in rigor mortis, such as cardiac phospholamban, acetyl-coenzyme A acyltransferase, and ankyrin repeat domain 2. The current results provide proteomic insights into the changes in meat quality during rigor mortis.
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Birer M, Acartürk F. Telmisartan loaded polycaprolactone/gelatin-based electrospun vascular scaffolds. INT J POLYM MATER PO 2021. [DOI: 10.1080/00914037.2021.1915785] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Mehmet Birer
- Department of Pharmaceutical Technology, Gazi University Faculty of Pharmacy, Ankara, Turkey
| | - Füsun Acartürk
- Department of Pharmaceutical Technology, Gazi University Faculty of Pharmacy, Ankara, Turkey
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Wang Y, Zhang T, Li C, Guo J, Xu B, Xue L. Telmisartan attenuates human glioblastoma cells proliferation and oncogenicity by inducing the lipid oxidation. Asia Pac J Clin Oncol 2021; 18:217-223. [PMID: 33945216 PMCID: PMC9290901 DOI: 10.1111/ajco.13574] [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: 01/27/2021] [Accepted: 01/29/2021] [Indexed: 02/06/2023]
Abstract
Background Glioblastoma (GBM) is one of the most common primary brain tumors, which accounts up to 80% of malignant brain tumors and the 5‐year relative survival rate is below 5%. Recent studies showed that the lipid metabolism played an essential role in GBM development. As a peroxisome proliferators‐activated receptors γ (PPAR‐γ) agonist, telmisartan improves the lipid metabolism and has been used to treat hypertension for long time. It has also been shown to have anticancer function, such as in lung cancer and melanoma. Methods Incucyte real‐time live cell imaging system was used to assess the effect of telmisartan on glioma cell lines U87 and U251 proliferation. Transwell assay and colony formation assay were conducted to detect the effect of telmisartan on oncogenicity of GBM cell lines. Western blot and immunofluorescence analysis were used to detect the effect of telmisartan on the expression of PPAR‐γ and hydroxyacyl‐coenzyme A dehydrogenase alpha subunit (HADHA). Results We demonstrate that telmisartan inhibits two glioma cell lines U87 and U251 proliferation in a time‐ and dose‐dependent manner, and arrests the cell cycle at S phase. We further show that telmisartan decreases the oncogenicity of GBM cell lines. Our data show that telmisartan treatment significantly increases the PPAR‐γ expression level, enhances the lipid oxidation, and upregulates the level of fatty acid oxidation key enzyme HADHA. Conclusions Telmisartan inhibits the proliferation and oncogenicity while it also increases the lipid oxidation of human GBM cells.
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Affiliation(s)
- Yan Wang
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, China.,Medical Research Center, Peking University Third Hospital, Beijing, China
| | - Tengrui Zhang
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, China.,Medical Research Center, Peking University Third Hospital, Beijing, China
| | - Chen Li
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, China.,Medical Research Center, Peking University Third Hospital, Beijing, China
| | - Jia Guo
- Center for Hypertension Care, Shanxi Medical University First Hospital, Taiyuan, China.,Division of Vascular Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
| | - Baohui Xu
- Division of Vascular Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
| | - Lixiang Xue
- Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, China.,Medical Research Center, Peking University Third Hospital, Beijing, China.,Biobank, Peking University Third Hospital, Beijing, China
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6
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Sayutina EV, Butorova LI, Tuaeva EM, Osadchuk MA. Telmisartan in the hypertension treatment: from pharmacological characteristics to clinical benefits. КАРДИОВАСКУЛЯРНАЯ ТЕРАПИЯ И ПРОФИЛАКТИКА 2020. [DOI: 10.15829/1728-8800-2020-1-106-117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Affiliation(s)
| | | | - E. M. Tuaeva
- I.M. Sechenov First Moscow State Medical University
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7
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Sayutina EV, Butorova LI, Tuaeva EM, Osadchuk MA. Telmisartan in the hypertension treatment: from pharmacological characteristics to clinical benefits. КАРДИОВАСКУЛЯРНАЯ ТЕРАПИЯ И ПРОФИЛАКТИКА 2020. [DOI: 10.15829/1728-8800-2020-1-2453] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Affiliation(s)
| | | | - E. M. Tuaeva
- I.M. Sechenov First Moscow State Medical University
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Sellers SL, Milad N, Chan R, Mielnik M, Jermilova U, Huang PL, de Crom R, Hirota JA, Hogg JC, Sandor GG, Van Breemen C, Esfandiarei M, Seidman MA, Bernatchez P. Inhibition of Marfan Syndrome Aortic Root Dilation by Losartan: Role of Angiotensin II Receptor Type 1-Independent Activation of Endothelial Function. THE AMERICAN JOURNAL OF PATHOLOGY 2019; 188:574-585. [PMID: 29433732 DOI: 10.1016/j.ajpath.2017.11.006] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 10/18/2017] [Accepted: 11/16/2017] [Indexed: 01/13/2023]
Abstract
Marfan syndrome (MFS) is a genetic disorder that frequently leads to aortic root dissection and aneurysm. Despite promising preclinical and pilot clinical data, a recent large-scale study using antihypertensive angiotensin II (AngII) receptor type 1 (ATR1) blocker losartan has failed to meet expectations at preventing MFS-associated aortic root dilation, casting doubts about optimal therapy. To study the deleterious role of normal ATR1 signaling in aortic root widening, we generated MFS mice lacking ATR1a expression in an attempt to preserve protective ATR2 signaling. Despite being hypotensive and resistant to AngII vasopressor effects, MFS/ATR1a-null mice showed unabated aortic root enlargement and remained fully responsive to losartan, confirming that blood pressure lowering is of minor therapeutic value in MFS and that losartan's antiremodeling properties may be ATR1 independent. Having shown that MFS causes endothelial dysfunction and that losartan can activate endothelial function in mice and patients, we found that nitric oxide synthase (NOS) inhibition renders losartan therapeutically inactive, whereas multiple transgenic and pharmacologic models of endothelial NOS activation block aortic root dilation by correcting extracellular signal-regulated kinase signaling. In vitro, losartan can increase endothelial NO release in the absence of AngII and correct MFS NO levels in vivo. Our data suggest that increased protective endothelial function, rather than ATR1 inhibition or blood pressure lowering, might be of therapeutic significance in preventing aortic root disease in MFS.
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Affiliation(s)
- Stephanie L Sellers
- Department of Anesthesiology, Pharmacology and Therapeutics, University of British Columbia (UBC), Vancouver, British Columbia, Canada; UBC Centre for Heart Lung Innovation and St. Paul's Hospital, University of British Columbia (UBC), Vancouver, British Columbia, Canada
| | - Nadia Milad
- Department of Anesthesiology, Pharmacology and Therapeutics, University of British Columbia (UBC), Vancouver, British Columbia, Canada; UBC Centre for Heart Lung Innovation and St. Paul's Hospital, University of British Columbia (UBC), Vancouver, British Columbia, Canada
| | - Rayleigh Chan
- Department of Anesthesiology, Pharmacology and Therapeutics, University of British Columbia (UBC), Vancouver, British Columbia, Canada; UBC Centre for Heart Lung Innovation and St. Paul's Hospital, University of British Columbia (UBC), Vancouver, British Columbia, Canada
| | - Michael Mielnik
- Department of Anesthesiology, Pharmacology and Therapeutics, University of British Columbia (UBC), Vancouver, British Columbia, Canada; UBC Centre for Heart Lung Innovation and St. Paul's Hospital, University of British Columbia (UBC), Vancouver, British Columbia, Canada
| | - Una Jermilova
- Department of Anesthesiology, Pharmacology and Therapeutics, University of British Columbia (UBC), Vancouver, British Columbia, Canada; UBC Centre for Heart Lung Innovation and St. Paul's Hospital, University of British Columbia (UBC), Vancouver, British Columbia, Canada
| | - Paul L Huang
- Cardiovascular Research Centre, Massachusetts General Hospital, Harvard University, Charlestown, Massachusetts
| | - Rini de Crom
- Department of Cell Biology and Genetics, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Jeremy A Hirota
- UBC Centre for Heart Lung Innovation and St. Paul's Hospital, University of British Columbia (UBC), Vancouver, British Columbia, Canada; Division of Respiratory Medicine, Department of Medicine, Chan-Yeung Centre for Occupational and Environmental Respiratory Disease, University of British Columbia (UBC), Vancouver, British Columbia, Canada
| | - James C Hogg
- UBC Centre for Heart Lung Innovation and St. Paul's Hospital, University of British Columbia (UBC), Vancouver, British Columbia, Canada; Department of Pathology and Laboratory Medicine, University of British Columbia (UBC), Vancouver, British Columbia, Canada
| | - George G Sandor
- Providence Health Care, and the Child and Family Research Institute, University of British Columbia (UBC), Vancouver, British Columbia, Canada
| | - Casey Van Breemen
- Providence Health Care, and the Child and Family Research Institute, University of British Columbia (UBC), Vancouver, British Columbia, Canada
| | - Mitra Esfandiarei
- Department of Biomedical Sciences, Midwestern University, Glendale, Arizona
| | - Michael A Seidman
- UBC Centre for Heart Lung Innovation and St. Paul's Hospital, University of British Columbia (UBC), Vancouver, British Columbia, Canada; Department of Pathology and Laboratory Medicine, University of British Columbia (UBC), Vancouver, British Columbia, Canada
| | - Pascal Bernatchez
- Department of Anesthesiology, Pharmacology and Therapeutics, University of British Columbia (UBC), Vancouver, British Columbia, Canada; UBC Centre for Heart Lung Innovation and St. Paul's Hospital, University of British Columbia (UBC), Vancouver, British Columbia, Canada.
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Radenkovic M, Stojanović M, Nešić IM, Prostran M. Angiotensin receptor blockers & endothelial dysfunction: Possible correlation & therapeutic implications. Indian J Med Res 2017; 144:154-168. [PMID: 27934794 PMCID: PMC5206866 DOI: 10.4103/0971-5916.195022] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
The endothelium is one of the most important constituents of vascular homeostasis, which is achieved through continual and balanced production of different relaxing and contractile factors. When there is a pathological disturbance in release of these products, endothelial dysfunction (ED) will probably occur. ED is considered to be the initial step in the development of atherosclerosis. This pathological activation and inadequate functioning of endothelial cells was shown to be to some extent a reversible process, which all together resulted in increased interest in investigation of different beneficial treatment options. To this point, the pharmacological approach, including for example, the use of angiotensin-converting enzyme inhibitors or statins, was clearly shown to be effective in the improvement of ED. One of many critical issues underlying ED represents instability in the balance between nitric oxide and angiotensin II (Ang II) production. Considering that Ang II was confirmed to be important for the development of ED, the aim of this review article was to summarize the findings of up to date clinical studies associated with therapeutic application of angiotensin receptor blockers and improvement in ED. In addition, it was of interest to review the pleiotropic actions of angiotensin receptor blockers linked to the improvement of ED. The prospective, randomized, double-blind, placebo or active-controlled clinical trials were identified and selected for the final evaluation.
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Affiliation(s)
- Miroslav Radenkovic
- Department of Pharmacology, Clinical Pharmacology and Toxicology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Marko Stojanović
- Department of Pharmacology, Clinical Pharmacology and Toxicology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Ivana Milićević Nešić
- Department of Pharmacology, Clinical Pharmacology and Toxicology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Milica Prostran
- Department of Pharmacology, Clinical Pharmacology and Toxicology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
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Patel P. Telmisartan: clinical evidence across the cardiovascular and renal disease continuum. DRUGS & THERAPY PERSPECTIVES 2016. [DOI: 10.1007/s40267-016-0366-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Michel MC, Brunner HR, Foster C, Huo Y. Angiotensin II type 1 receptor antagonists in animal models of vascular, cardiac, metabolic and renal disease. Pharmacol Ther 2016; 164:1-81. [PMID: 27130806 DOI: 10.1016/j.pharmthera.2016.03.019] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 03/30/2016] [Indexed: 02/07/2023]
Abstract
We have reviewed the effects of angiotensin II type 1 receptor antagonists (ARBs) in various animal models of hypertension, atherosclerosis, cardiac function, hypertrophy and fibrosis, glucose and lipid metabolism, and renal function and morphology. Those of azilsartan and telmisartan have been included comprehensively whereas those of other ARBs have been included systematically but without intention of completeness. ARBs as a class lower blood pressure in established hypertension and prevent hypertension development in all applicable animal models except those with a markedly suppressed renin-angiotensin system; blood pressure lowering even persists for a considerable time after discontinuation of treatment. This translates into a reduced mortality, particularly in models exhibiting marked hypertension. The retrieved data on vascular, cardiac and renal function and morphology as well as on glucose and lipid metabolism are discussed to address three main questions: 1. Can ARB effects on blood vessels, heart, kidney and metabolic function be explained by blood pressure lowering alone or are they additionally directly related to blockade of the renin-angiotensin system? 2. Are they shared by other inhibitors of the renin-angiotensin system, e.g. angiotensin converting enzyme inhibitors? 3. Are some effects specific for one or more compounds within the ARB class? Taken together these data profile ARBs as a drug class with unique properties that have beneficial effects far beyond those on blood pressure reduction and, in some cases distinct from those of angiotensin converting enzyme inhibitors. The clinical relevance of angiotensin receptor-independent effects of some ARBs remains to be determined.
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Affiliation(s)
- Martin C Michel
- Dept. Pharmacology, Johannes Gutenberg University, Mainz, Germany; Dept. Translational Medicine & Clinical Pharmacology, Boehringer Ingelheim, Ingelheim, Germany.
| | | | - Carolyn Foster
- Retiree from Dept. of Research Networking, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, CT, USA
| | - Yong Huo
- Dept. Cardiology & Heart Center, Peking University First Hospital, Beijing, PR China
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Gkaliagkousi E, Gavriilaki E, Triantafyllou A, Douma S. Clinical Significance of Endothelial Dysfunction in Essential Hypertension. Curr Hypertens Rep 2016; 17:85. [PMID: 26371063 DOI: 10.1007/s11906-015-0596-3] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The endothelium is recognized as a major determinant of vascular physiology and pathophysiology. Over the last few decades, a plethora of studies have implicated endothelial dysfunction in the progression of atherosclerosis and the subclinical target organ damage observed in essential hypertension. However, the clinical significance of diagnosing endothelial dysfunction in patients with essential hypertension remains under investigation. Although a number of vascular and non-vascular markers of endothelial dysfunction have been proposed, there is an ongoing quest for a marker in the clinical setting that is optimal, inexpensive, and reproducible. In addition, endothelial dysfunction emerges as a promising therapeutic target of agents that are readily available in clinical practice. In this context, a better understanding of its role in essential hypertension becomes of great importance. Here, we aim to investigate the clinical significance of endothelial dysfunction in essential hypertension by accumulating novel data on (a) early diagnosis using robust markers with prognostic value in cardiovascular risk prediction, (b) the association of endothelial dysfunction with subclinical vascular organ damage, and (c) potential therapeutic targets.
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Affiliation(s)
- Eugenia Gkaliagkousi
- 3rd Department of Internal Medicine, Papageorgiou Hospital, Aristotle University of Thessaloniki, Ring Road Nea Eukarpia, 564 03, Thessaloniki, Greece.
| | - Eleni Gavriilaki
- 3rd Department of Internal Medicine, Papageorgiou Hospital, Aristotle University of Thessaloniki, Ring Road Nea Eukarpia, 564 03, Thessaloniki, Greece
| | - Areti Triantafyllou
- 3rd Department of Internal Medicine, Papageorgiou Hospital, Aristotle University of Thessaloniki, Ring Road Nea Eukarpia, 564 03, Thessaloniki, Greece
| | - Stella Douma
- 3rd Department of Internal Medicine, Papageorgiou Hospital, Aristotle University of Thessaloniki, Ring Road Nea Eukarpia, 564 03, Thessaloniki, Greece
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14
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Kurokawa H, Sugiyama S, Nozaki T, Sugamura K, Toyama K, Matsubara J, Fujisue K, Ohba K, Maeda H, Konishi M, Akiyama E, Sumida H, Izumiya Y, Yasuda O, Kim-Mitsuyama S, Ogawa H. Telmisartan enhances mitochondrial activity and alters cellular functions in human coronary artery endothelial cells via AMP-activated protein kinase pathway. Atherosclerosis 2015; 239:375-85. [PMID: 25682036 DOI: 10.1016/j.atherosclerosis.2015.01.037] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 12/30/2014] [Accepted: 01/26/2015] [Indexed: 11/24/2022]
Abstract
OBJECTIVE Mitochondrial dysfunction plays an important role in cellular senescence and impaired function of vascular endothelium, resulted in cardiovascular diseases. Telmisartan is a unique angiotensin II type I receptor blocker that has been shown to prevent cardiovascular events in high risk patients. AMP-activated protein kinase (AMPK) plays a critical role in mitochondrial biogenesis and endothelial function. This study assessed whether telmisartan enhances mitochondrial function and alters cellular functions via AMPK in human coronary artery endothelial cells (HCAECs). METHODS AND RESULTS In cultured HCAECs, telmisartan significantly enhanced mitochondrial activity assessed by mitochondrial reductase activity and intracellular ATP production and increased the expression of mitochondria related genes. Telmisartan prevented cellular senescence and exhibited the anti-apoptotic and pro-angiogenic properties. The expression of genes related anti-oxidant and pro-angiogenic properties were increased by telmisartan. Telmisartan increased endothelial NO synthase and AMPK phosphorylation. Peroxisome proliferator-activated receptor gamma signaling was not involved in telmisartan-induced improvement of mitochondrial function. All of these effects were abolished by inhibition of AMPK. CONCLUSIONS Telmisartan enhanced mitochondrial activity and exhibited anti-senescence effects and improving endothelial function through AMPK in HCAECs. Telmisartan could provide beneficial effects on vascular diseases via enhancement of mitochondrial activity and modulating endothelial function through AMPK activation.
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Affiliation(s)
- Hirofumi Kurokawa
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - Seigo Sugiyama
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan.
| | - Toshimitsu Nozaki
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - Koichi Sugamura
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - Kensuke Toyama
- Department of Pharmacology and Molecular Therapeutics, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - Junichi Matsubara
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - Koichiro Fujisue
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - Keisuke Ohba
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - Hirofumi Maeda
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - Masaaki Konishi
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - Eiichi Akiyama
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - Hitoshi Sumida
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - Yasuhiro Izumiya
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - Osamu Yasuda
- Department of Cardiovascular Clinical and Translational Research, Kumamoto University Hospital, Kumamoto University, Kumamoto, Japan
| | - Shokei Kim-Mitsuyama
- Department of Pharmacology and Molecular Therapeutics, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
| | - Hisao Ogawa
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kumamoto University, Kumamoto, Japan
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Telmisartan exerts anti-tumor effects by activating peroxisome proliferator-activated receptor-γ in human lung adenocarcinoma A549 cells. Molecules 2014; 19:2862-76. [PMID: 24603556 PMCID: PMC6271964 DOI: 10.3390/molecules19032862] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Revised: 02/25/2014] [Accepted: 02/26/2014] [Indexed: 11/28/2022] Open
Abstract
Telmisartan, a member of the angiotensin II type 1 receptor blockers, is usually used for cardiovascular diseases. Recent studies have showed that telmisartan has the property of PPARγ activation. Meanwhile, PPARγ is essential for tumor proliferation, invasion and metastasis. In this work we explore whether telmisartan could exert anti-tumor effects through PPARγ activation in A549 cells. MTT and trypan blue exclusion assays were included to determine the survival rates and cell viabilities. RT-PCR and western blotting were used to analyze the expression of ICAM-1, MMP-9 and PPARγ. DNA binding activity of PPARγ was evaluated by EMSA. Our data showed that the survival rates and cell viabilities of A549 cells were all reduced by telmisartan in a time- and concentration-dependent manner. Meanwhile, our results also demonstrated that telmisartan dose-dependently inhibited the expression of ICAM-1 and MMP-9. Moreover, the cytotoxic and anti-proliferative effects, ICAM-1 and MMP-9 inhibitive properties of telmisartan were totally blunted by the PPARγ antagonist GW9662. Our findings also showed that the expression of PPARγ was up-regulated by telmisartan in a dose dependent manner. And, the EMSA results also figured out that DNA binding activity of PPARγ was dose-dependently increased by telmisartan. Additionally, our data also revealed that telmisartan-induced PPARγ activation was abrogated by GW9662. Taken together, our results indicated that telmisartan inhibited the expression of ICAM-1 and MMP-9 in A549 cells, very likely through the up-regulation of PPARγ synthesis.
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Chaudagar KK, Mehta AA. Effect of telmisartan on VEGF-induced and VEGF-independent angiogenic responsiveness of coronary endothelial cells in normal and streptozotocin (STZ)-induced diabetic rats. Clin Exp Hypertens 2014; 36:557-66. [DOI: 10.3109/10641963.2014.881842] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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