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Chen H, Li M, Liu L, Zhu D, Tian G. Telmisartan improves myocardial remodeling by inhibiting leptin autocrine activity and activating PPARγ. Exp Biol Med (Maywood) 2020; 245:654-666. [PMID: 32075431 DOI: 10.1177/1535370220908215] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The mechanism responsible for myocardial remodeling in hypertensive left ventricular hypertrophy (LVH) is complex. This study was designed to investigate the role of telmisartan in improving myocardial remodeling in hypertensive LVH and to explore the molecular mechanisms underlying the effects of telmisartan on hypertensive LVH. Hypertensive LVH was established in eight-week-old male Sprague–Dawley (SD) rats by abdominal aortic constriction. Telmisartan was intragastrically administered six weeks after surgery. Telmisartan improved cardiac dysfunction and myocardial fibrosis and reduced myocardial renin-angiotensin-aldosterone system (RAAS) activity and leptin levels in hypertensive LVH rats. To assess the mechanism underlying hypertensive LVH, cardiac fibroblasts were treated in vitro with angiotensin II (Ang II) or leptin, plus various inhibitors. Ang II stimulated leptin synthesis and secretion in cardiac fibroblasts by promoting AP-1 nuclear translocation via the AT1R-ROS-ERK1/2 pathway. Leptin induced collagen metabolism disorder in cardiac fibroblasts via the JAK2/STAT3 pathway. Telmisartan improved collagen metabolism disorder by inhibiting leptin induced by local Ang II in an autocrine manner. Telmisartan also improved Ang II-induced collagen metabolism disorder by inhibiting STAT3 phosphorylation, a leptin downstream signal, by activating PPAR-γ. Telmisartan therefore improved myocardial remodeling in hypertensive LVH rats by acting as an AT1R antagonist, inhibiting leptin autocrine activity induced by local Ang II and by acting as a PPAR-γ agonist, inhibiting downstream leptin activation of STAT3 phosphorylation. These findings indicate the crosstalk between local myocardial RAAS and leptin and suggest a molecular mechanism by which telmisartan improves myocardial remodeling in hypertensive LVH. Impact statement This study shows the crosstalk between local myocardial RAAS and leptin in hypertensive LVH rats; that Ang II induces myocardial remodeling by stimulating leptin autocrine activity by promoting AP-1 nuclear translocation via the AT1R-ROS-ERK1/2 pathway; and that telmisartan improves myocardial remodeling by inhibiting local Ang II-induced leptin autocrine activity and by inhibiting the leptin downstream signal STAT3 phosphorylation by activating PPAR-γ. These findings reveal novel molecular mechanisms by which telmisartan improves myocardial remodeling and could help to identify therapeutic targets for hypertensive LVH.
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Affiliation(s)
- Hui Chen
- Department of Cardiovascular Medicine, the First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an 710061, China
| | - Min Li
- Department of Cardiovascular Medicine, the First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an 710061, China.,Department of Cardiovascular Medicine, Weifang Traditional Chinese Medicine Hospital, Weifang City 261000, China
| | - Lei Liu
- Department of Cardiovascular Medicine, the First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an 710061, China
| | - Danjun Zhu
- Department of Cardiovascular Medicine, the First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an 710061, China
| | - Gang Tian
- Department of Cardiovascular Medicine, the First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an 710061, China
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Hovakimyan M, Talabattula VAN, Cozma C, Beetz C, Rolfs A, Elstein D. Plasma adiponectin is a potential biomarker for organ involvement in male Fabry disease patients. Blood Cells Mol Dis 2019; 80:102379. [PMID: 31715450 DOI: 10.1016/j.bcmd.2019.102379] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 10/28/2019] [Indexed: 11/15/2022]
Abstract
Fabry disease is an X-linked lysosomal storage disorder caused by pathogenic variants in GLA. It manifests in hemizygous males and in many heterozygous females. Cardiovascular and renal involvement are frequent. Adiponectin is a circulating hormone that has been linked to numerous disease conditions including heart and kidney failure. In the present pilot study, we investigated plasma adiponectin levels in a cohort of 56 individuals with a genetic diagnosis of Fabry disease. Adiponectin levels did not differ between patients and controls. However, in male patients, significantly decreased adiponectin levels were associated with cardiovascular manifestation, while increased levels were associated with renal involvement. Similar trends in female patients did not reach statistical significance. Lyso-Gb3, a metabolite with good diagnostic/screening performance, was not indicative of organ involvement. In combination, adiponectin and Lyso-Gb3 may be of value for identification and stratification of Fabry patients. A potential additional relevance for prognosis and monitoring should be addressed by future studies in larger cohorts.
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Affiliation(s)
| | | | | | | | - Arndt Rolfs
- CENTOGENE AG, Rostock, Germany; Medical Faculty, University of Rostock, Rostock, Germany
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Kou H, Deng J, Gao D, Song A, Han Z, Wei J, Jin X, Ma R, Zheng Q. Relationship among adiponectin, insulin resistance and atherosclerosis in non-diabetic hypertensive patients and healthy adults. Clin Exp Hypertens 2018; 40:656-663. [PMID: 29336612 DOI: 10.1080/10641963.2018.1425414] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Adiponectin, which is secreted specifically by adipose tissue, has been shown to have anti-atherogenic and anti-inflammatory effects and to improve insulin resistance (IR). The aim of this study was to determine the correlations among adiponectin, IR and atherosclerosis in non-diabetic hypertensive patients and healthy volunteers. In this case control study, we collected complete demographic data from and measured several laboratory parameters in all enrolled subjects. The homeostasis model of assessment for insulin resistance (HOMA-IR) was calculated as an insulin sensitivity index. The atherogenic index of plasma (AIP), which is calculated as log (triglyceride (TG)/high-density lipoprotein cholesterol (HDL-C)), was a significant predictor of atherosclerosis and was a better predictor of atherosclerosis than low-density lipoprotein cholesterol (LDL-C). Plasma adiponectin, interleukin (IL)-6, monocyte chemoattractant protein-1 (MCP-1) and matrix metalloprotein-9 (MMP-9) concentrations were determined using enzyme-linked immunosorbent assay (ELISA). All data were analyzed using Statistical Product and Service Solutions for Windows (SPSS) 13.0 software. A total of 309 participants were enrolled in the study. Hypertensive patients with IR (n = 93) displayed significantly higher HOMA-IR values and AIPs and lower adiponectin levels than hypertensive patients without IR (n = 121) and healthy adults (n = 95) (P < 0.05). Furthermore, circulating IL-6, MCP-1 and MMP-9 concentrations differed significantly between hypertensive patients and healthy adults (P < 0.05). Additionally, adiponectin levels were found to be inversely correlated with IL-6, MCP-1, and MMP-9 levels; HOMA-IR values; and AIPs in the clinical study. HOMA-IR values and adiponectin and creatinine (Cr) concentrations remained independently associated with AIPs in all participants after adjustment for confounders via multivariate linear regression. Low adiponectin levels are positively correlated with decreased insulin sensitivity, increased pro-inflammatory cytokine production and worsening atherosclerosis in hypertensive patients and healthy adults.
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Affiliation(s)
- Huijuan Kou
- a Department of Cardiology , The Second Affiliated Hospital, Xi'an Jiaotong University , Xi'an , Shaanxi , P.R. China
| | - Jie Deng
- a Department of Cardiology , The Second Affiliated Hospital, Xi'an Jiaotong University , Xi'an , Shaanxi , P.R. China
| | - Dengfeng Gao
- a Department of Cardiology , The Second Affiliated Hospital, Xi'an Jiaotong University , Xi'an , Shaanxi , P.R. China
| | - Anqi Song
- a Department of Cardiology , The Second Affiliated Hospital, Xi'an Jiaotong University , Xi'an , Shaanxi , P.R. China
| | - Zhenhua Han
- a Department of Cardiology , The Second Affiliated Hospital, Xi'an Jiaotong University , Xi'an , Shaanxi , P.R. China
| | - Jin Wei
- a Department of Cardiology , The Second Affiliated Hospital, Xi'an Jiaotong University , Xi'an , Shaanxi , P.R. China
| | - Xin Jin
- b Department of Ultrasonography , The Second Affiliated Hospital, Xi'an Jiaotong University , Xi'an , Shaanxi , P.R. China
| | - Rui Ma
- a Department of Cardiology , The Second Affiliated Hospital, Xi'an Jiaotong University , Xi'an , Shaanxi , P.R. China
| | - Qiangsun Zheng
- a Department of Cardiology , The Second Affiliated Hospital, Xi'an Jiaotong University , Xi'an , Shaanxi , P.R. China
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Anagnostis P, Katsiki N, Athyros VG, Karagiannis A. Adiponectin and Aldosterone in Left Ventricular Hypertrophy: An Intriguing Interplay. Angiology 2014; 69:745-748. [PMID: 24687414 DOI: 10.1177/0003319714527785] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Panagiotis Anagnostis
- 1 Division of Endocrinology, Police Medical Centre, Thessaloniki, Greece.,2 Second Propedeutic Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, Hippokration Hospital, Thessaloniki, Greece
| | - Niki Katsiki
- 2 Second Propedeutic Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, Hippokration Hospital, Thessaloniki, Greece
| | - Vasilios G Athyros
- 2 Second Propedeutic Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, Hippokration Hospital, Thessaloniki, Greece
| | - Asterios Karagiannis
- 2 Second Propedeutic Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, Hippokration Hospital, Thessaloniki, Greece
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