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Huang S, Chen G, Sun J, Chen Y, Wang N, Dong Y, Shen E, Hu Z, Gong W, Jin L, Cong W. Histone deacetylase 3 inhibition alleviates type 2 diabetes mellitus-induced endothelial dysfunction via Nrf2. Cell Commun Signal 2021; 19:35. [PMID: 33736642 PMCID: PMC7977318 DOI: 10.1186/s12964-020-00681-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 11/02/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND The mechanism underlying endothelial dysfunction leading to cardiovascular disease in type 2 diabetes mellitus (T2DM) remains unclear. Here, we show that inhibition of histone deacetylase 3 (HDAC3) reduced inflammation and oxidative stress by regulating nuclear factor-E2-related factor 2 (Nrf2), which mediates the expression of anti-inflammatory- and pro-survival-related genes in the vascular endothelium, thereby improving endothelial function. METHODS Nrf2 knockout (Nrf2 KO) C57BL/6 background mice, diabetic db/db mice, and control db/m mice were used to investigate the relationship between HDAC3 and Nrf2 in the endothelium in vivo. Human umbilical vein endothelial cells (HUVECs) cultured under high glucose-palmitic acid (HG-PA) conditions were used to explore the role of Kelch-like ECH-associated protein 1 (Keap1) -Nrf2-NAPDH oxidase 4 (Nox4) redox signaling in the vascular endothelium in vitro. Activity assays, immunofluorescence, western blotting, qRT-PCR, and immunoprecipitation assays were used to examine the effect of HDAC3 inhibition on inflammation, reactive oxygen species (ROS) production, and endothelial impairment, as well as the activity of Nrf2-related molecules. RESULTS HDAC3 activity, but not its expression, was increased in db/db mice. This resulted in de-endothelialization and increased oxidative stress and pro-inflammatory marker expression in cells treated with the HDAC3 inhibitor RGFP966, which activated Nrf2 signaling. HDAC3 silencing decreased ROS production, inflammation, and damage-associated tube formation in HG-PA-treated HUVECs. The underlying mechanism involved the Keap1-Nrf2-Nox4 signaling pathway. CONCLUSION The results of this study suggest the potential of HDAC3 as a therapeutic target for the treatment of endothelial dysfunction in T2DM. Video Abstract.
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Affiliation(s)
- Shuai Huang
- Zhejiang Provincial Key Laboratory of Interventional Pulmonology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000 People’s Republic of China
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325000 People’s Republic of China
| | - Gen Chen
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325000 People’s Republic of China
| | - Jia Sun
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325000 People’s Republic of China
| | - Yunjie Chen
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325000 People’s Republic of China
| | - Nan Wang
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325000 People’s Republic of China
| | - Yetong Dong
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325000 People’s Republic of China
| | - Enzhao Shen
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325000 People’s Republic of China
| | - Zhicheng Hu
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325000 People’s Republic of China
| | - Wenjie Gong
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325000 People’s Republic of China
| | - Litai Jin
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325000 People’s Republic of China
| | - Weitao Cong
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, 325000 People’s Republic of China
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Kowalska K, Dembczyński R, Gołąbek A, Olkowicz M, Olejnik A. ROS Modulating Effects of Lingonberry ( Vaccinium vitis-idaea L.) Polyphenols on Obese Adipocyte Hypertrophy and Vascular Endothelial Dysfunction. Nutrients 2021; 13:nu13030885. [PMID: 33803343 PMCID: PMC7999824 DOI: 10.3390/nu13030885] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 02/28/2021] [Accepted: 03/05/2021] [Indexed: 02/06/2023] Open
Abstract
Oxidative stress and dysregulated adipocytokine secretion accompanying hypertrophied adipose tissue induce chronic inflammation, which leads to vascular endothelial dysfunction. The present study investigated the ability of anthocyanin (ACN) and non-anthocyanin polyphenol (PP) fractions from lingonberry fruit to mitigate adipose tissue hypertrophy and endothelial dysfunction using 3T3-L1 adipocytes and human umbilical vein endothelial cells (HUVECs). This study showed that the PP fraction decreased intracellular ROS generation in hypertrophied adipocytes by enhancing antioxidant enzyme expression (SOD2) and inhibiting oxidant enzyme expression (NOX4, iNOS). Moreover, PP and ACN fractions reduced triglyceride content in adipocytes accompanied by downregulation of the expression of lipogenic genes such as aP2, FAS, and DAGT1. Treatment with both fractions modulated the mRNA expression and protein secretion of key adipokines in hypertrophied adipocytes. Expression and secretion of leptin and adiponectin were, respectively, down- and upregulated. Furthermore, PP and ACN fractions alleviated the inflammatory response in TNF-α-induced HUVECs by inhibiting the expression of pro-inflammatory genes (IL-6, IL-1β) and adhesion molecules (VCAM-1, ICAM-1, SELE). The obtained results suggest that consuming polyphenol-rich lingonberry fruit may help prevent and treat obesity and endothelial dysfunction due to their antioxidant and anti-inflammatory actions.
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Affiliation(s)
- Katarzyna Kowalska
- Department of Biotechnology and Food Microbiology, Poznan University of Life Sciences, 48 Wojska Polskiego St., 60-627 Poznan, Poland; (K.K.); (R.D.); (A.G.)
| | - Radosław Dembczyński
- Department of Biotechnology and Food Microbiology, Poznan University of Life Sciences, 48 Wojska Polskiego St., 60-627 Poznan, Poland; (K.K.); (R.D.); (A.G.)
| | - Agata Gołąbek
- Department of Biotechnology and Food Microbiology, Poznan University of Life Sciences, 48 Wojska Polskiego St., 60-627 Poznan, Poland; (K.K.); (R.D.); (A.G.)
| | - Mariola Olkowicz
- Jagiellonian Centre for Experimental Therapeutics, Jagiellonian University, 14 Bobrzynskiego St., 30-348 Krakow, Poland;
| | - Anna Olejnik
- Department of Biotechnology and Food Microbiology, Poznan University of Life Sciences, 48 Wojska Polskiego St., 60-627 Poznan, Poland; (K.K.); (R.D.); (A.G.)
- Correspondence:
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Yao W, Wang K, Wang X, Li X, Dong J, Zhang Y, Ding X. Icariin ameliorates endothelial dysfunction in type 1 diabetic rats by suppressing ER stress via the PPARα/Sirt1/AMPKα pathway. J Cell Physiol 2021; 236:1889-1902. [PMID: 32770555 DOI: 10.1002/jcp.29972] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 07/11/2020] [Accepted: 07/14/2020] [Indexed: 12/15/2022]
Abstract
Icariin (ICA), as a flavonoid glycoside, is associated with the improvement of vascular complications in diabetes. However, its protective mechanisms remain to be well-established. Here, we tested the hypothesis that ICA attenuates vascular endothelial dysfunction by inhibiting endoplasmic reticulum (ER) stress in type 1 diabetes. In streptozotocin-induced diabetic rats, ICA positively affected acetylcholine-induced vasodilation and phenylephrine-induced vasoconstriction in aortas. ICA treatment significantly attenuated ER stress in diabetic rats and high-glucose induced human umbilical vein endothelial cells. Incubation with ICA in vitro attenuated vascular reactivity in diabetic rats, which was blocked by the ER stress inducer, and peroxisome proliferator-activated receptor α (PPARα), sirtuin1 (Sirt1), or AMP-activated protein kinase-α (AMPKα) inhibitors. Western blot showed that ICA activated the PPARα/Sirt1/AMPKα pathway, which contributed to reducing ER stress and activating endothelial nitric oxide synthase in vivo and vitro. Our results implicate that ICA normalizes ER stress to attenuate endothelial dysfunction by the regulation of the PPARα/Sirt1/AMPKα pathway.
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Affiliation(s)
- Wenhui Yao
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Kai Wang
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Xiniao Wang
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Xinran Li
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Jieyan Dong
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yusheng Zhang
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Xuansheng Ding
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
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Chaudhry MA, Alamgeer , Mushtaq MN, Alqarni AO, Alyami BA, Mahnashi MH, Alqahtani YS, Akram M, Irfan HM, Riaz H, Qasim S. Endothelium independent calcium channel blocking pathways mediate antihypertensive effect of morus nigra. Pak J Pharm Sci 2021; 34:781-785. [PMID: 34275815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Present study was conducted to validate the folkloric claims of morus nigra l. (moraceae) using invasive blood pressure measuring and ex vivo vasorelaxant experimental techniques. Intravenous administration of mn. Aq in 0.01-30 mg/kg doses caused significant decrease in mean arterial pressure and heart rate in fructose-induced hypertensive rats. It also showed relaxation in high k+ [80 mm] and pe (1µm) mediated aortic contraction with ec50 1.25 and 3.72mg/ml values, respectively. Vaso-relaxant effect of mn.aq was partially blocked in presence of l-name with ec50, 5.32mg/ml value, but showed concentration dependent significant inhibition of ligand gated and voltage gated ca+2 channels and intracellular ca+2 release, similar to verapamil. Findings of current study designate that aqueous fraction of m. Nigra possesses antihypertensive activity with concentration-dependent vaso-relaxant effect predominantly mediated through endothelial-independent calcium channel blocking pathways accompanied by partial involvement of endothelium-dependent nos mediated relaxation.
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Affiliation(s)
- Mueen Ahmad Chaudhry
- Laboratory of Cardiovascular Research and Integrative Pharmacology, College of Pharmacy, University of Sargodha, Pakistan
| | - - Alamgeer
- Laboratory of Cardiovascular Research and Integrative Pharmacology, College of Pharmacy, University of Sargodha, Pakistan/ Punjab University College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | | | - Ali Omar Alqarni
- Department of Pharmaceutical chemistry, College of Pharmacy, Najran University, Najran, Kingdom of Saudi Arabia
| | - Bandar Ali Alyami
- Department of Pharmaceutical chemistry, College of Pharmacy, Najran University, Najran, Kingdom of Saudi Arabia
| | - Mater Hussen Mahnashi
- Department of Pharmaceutical chemistry, College of Pharmacy, Najran University, Najran, Kingdom of Saudi Arabia
| | - Yahya Saeed Alqahtani
- Department of Pharmaceutical chemistry, College of Pharmacy, Najran University, Najran, Kingdom of Saudi Arabia
| | - Muhammad Akram
- Laboratory of Cardiovascular Research and Integrative Pharmacology, College of Pharmacy, University of Sargodha, Pakistan
| | - Hafiz Muhammad Irfan
- Laboratory of Cardiovascular Research and Integrative Pharmacology, College of Pharmacy, University of Sargodha, Pakistan
| | - Humayun Riaz
- Rashid Latif college of Pharmacy, Lahore, Pakistan
| | - Sumera Qasim
- College of Pharmacy, Jouf University, Aljouf, Sakaka, Saudi Arabia
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Chen R, Chen T, Wang T, Dai X, Zhang S, Jiang D, Meng K, Wang Y, Geng T, Xu J, Zhou K, Wang Y. Tongmai Yangxin pill reduces myocardial No-reflow via endothelium-dependent NO-cGMP signaling by activation of the cAMP/PKA pathway. J Ethnopharmacol 2021; 267:113462. [PMID: 33058924 DOI: 10.1016/j.jep.2020.113462] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 09/28/2020] [Accepted: 10/01/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The Tongmai Yangxin pill (TMYX) is derived from the Zhigancao decoction recorded in Shang han lun by Zhang Zhongjing during the Han dynasty. TMYX is used for the clinical treatment of chest pain, heartache, and qi-yin-deficiency coronary heart disease. Previous studies have confirmed that TMYX can improve vascular endothelial function in patients with coronary heart disease by upregulating nitric oxide activity and then regulating vascular tension. Whether TMYX can further improve myocardial NR by upregulating NO activity and then dilating blood vessels remains unclear. AIM OF THE STUDY This study aimed to reveal whether TMYX can further improve myocardial NR by upregulating NO activity and then dilating blood vessels. The underlying cAMP/PKA and NO-cGMP signaling pathway-dependent mechanism is also explored. MATERIALS AND METHODS The left anterior descending coronary arteries of healthy adult male SD rats were ligated to establish the NR model. TMYX (4.0 g/kg) was orally administered throughout the experiment. Cardiac function was measured through echocardiography. Thioflavin S, Evans Blue, and TTC staining were used to evaluate the NR and ischemic areas. Pathological changes in the myocardium were assessed by hematoxylin-eosin staining. An automated biochemical analyzer and kit were used to detect the activities of myocardial enzymes and myocardial oxidants, including CK, CK-MB, LDH, reactive oxygen species, superoxide dismutase, malonaldehyde, and NO. The expression levels of genes and proteins related to the cAMP/PKA and NO/cGMP signaling pathways were detected via real-time fluorescence quantitative PCR and Western blot analysis, respectively. A microvascular tension sensor was used to detect coronary artery diastolic function in vitro. RESULTS TMYX elevated the EF, FS, LVOT peak, LVPWd and LVPWs values, decreased the LVIDd, LVIDs, LV-mass, IVSd, and LV Vols values, demonstrating cardio-protective effects, and reduced the NR and ischemic areas. Pathological staining showed that TMYX could significantly reduce inflammatory cell number and interstitial edema. The activities of CK, LDH, and MDA were reduced, NO activity was increased, and oxidative stress was suppressed after treatment with TMYX. TMYX not only enhanced the expression of Gs-α, AC, PKA, and eNOS but also increased the expression of sGC and PKG. Furthermore, TMYX treatment significantly decreased ROCK expression. We further showed that TMYX (25-200 mg/mL) relaxed isolated coronary microvessels. CONCLUSIONS TMYX attenuates myocardial NR after ischemia and reperfusion by activating the cAMP/PKA and NO/cGMP signaling pathways, further upregulating NO activity and relaxing coronary microvessels.
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Affiliation(s)
- Rui Chen
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - Ting Chen
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - Tianqi Wang
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - Xiangdong Dai
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - Shuying Zhang
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - Di Jiang
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - Ke Meng
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - Yanyan Wang
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - Tong Geng
- Tianjin Zhongxin Pharmaceutical Group Co., Ltd, Research Institute Branch, Tianjin, 300457, China.
| | - Jinpeng Xu
- Tianjin Zhongxin Pharmaceutical Group Co., Ltd, Drug Marketing Co., Ltd, Tianjin, 300193, China.
| | - Kun Zhou
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - Yi Wang
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
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Liu CD, Liu NN, Zhang S, Ma GD, Yang HG, Kong LL, Du GH. Salvianolic acid A prevented cerebrovascular endothelial injury caused by acute ischemic stroke through inhibiting the Src signaling pathway. Acta Pharmacol Sin 2021; 42:370-381. [PMID: 33303991 PMCID: PMC8027612 DOI: 10.1038/s41401-020-00568-2] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Accepted: 10/29/2020] [Indexed: 12/27/2022] Open
Abstract
Stroke is an acute cerebrovascular disease caused by ruptured or blocked blood vessels. For the prevention of ischemic stroke, the coagulation state of blood and cerebrovascular protection should be considered. Our previous study has shown that salvianolic acid A (SAA), which is a water-soluble component from the root of Salvia Miltiorrhiza Bge, prevents thrombosis with a mild inhibitory effect on platelet aggregation. In this study we investigated the preventive effects of SAA on cerebrovascular endothelial injury caused by ischemia in vivo and oxygen-glucose deprivation (OGD) in vitro, and explored the underlying mechanisms. An autologous thrombus stroke model was established in SD rats by electrocoagulation. SAA (10 mg/kg) was orally administered twice a day for 5 days before the operation. The rats were sacrificed at 24 h after the operation. We showed that pretreatment with SAA significantly improved the neurological deficits, intracerebral hemorrhage, BBB disruption, and vascular endothelial dysfunction as compared with model group. In human brain microvascular endothelial cells (HBMECs), pretreatment with SAA (10 μM) significantly inhibited OGD-induced cell viability reduction and degradation of tight junction proteins (ZO-1, occludin, claudin-5). Furthermore, we found that SAA inhibited the upregulation of Src signaling pathway in vivo and vitro and reversed the increased expression of matrix metalloproteinases (MMPs) after ischemic stroke. In conclusion, our results suggest that SAA protects cerebrovascular endothelial cells against ischemia and OGD injury via suppressing Src signaling pathway. These findings show that pretreatment with SAA is a potential therapeutic strategy for the prevention of ischemic stroke.
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Affiliation(s)
- Cheng-di Liu
- Beijing Key Laboratory of Drug Target Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Nan-Nan Liu
- Beijing Key Laboratory of Drug Target Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
- Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Sen Zhang
- Beijing Key Laboratory of Drug Target Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Guo-Dong Ma
- Beijing Key Laboratory of Drug Target Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Hai-Guang Yang
- Beijing Key Laboratory of Drug Target Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Ling-Lei Kong
- Beijing Key Laboratory of Drug Target Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China.
| | - Guan-Hua Du
- Beijing Key Laboratory of Drug Target Identification and Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China.
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Ozyel B, Le Gall G, Needs PW, Kroon PA. Anti-Inflammatory Effects of Quercetin on High-Glucose and Pro-Inflammatory Cytokine Challenged Vascular Endothelial Cell Metabolism. Mol Nutr Food Res 2021; 65:e2000777. [PMID: 33481349 PMCID: PMC8614122 DOI: 10.1002/mnfr.202000777] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 12/09/2020] [Indexed: 12/15/2022]
Abstract
SCOPE Pro-inflammatory stimuli such as hyperglycemia and cytokines have been shown to negatively affect endothelial cell functions. The aim of this study is to assess the potential of quercetin and its human metabolites to overcome the deleterious effects of hyperglycemic or inflammatory conditions on the vascular endothelium by modulating endothelial cell metabolism. METHODS AND RESULTS A metabolomics approach enabled identification and quantification of 27 human umbilical vein endothelial cell (HUVEC) metabolites. Treatment of HUVECs with high-glucose concentrations causes significant increases in lactate and glutamate concentrations. Quercetin inhibits glucose-induced increases in lactate and adenosine 5'-triphosphate (ATP) and also increased inosine concentrations. Tumor necrosis factor α-treatment (TNFα) of HUVECs causes increases in asparagine and decreases in aspartate concentrations. Co-treatment with quercetin reduces pyruvate concentrations compared to TNFα-only treated controls. Subsequently, it was shown that quercetin and its HUVEC phase-2 conjugates inhibit adenosine deaminase, xanthine oxidase and 5'nucleotidase (CD73) but not ectonucleoside triphosphate diphosphohydrolase-1 (CD39) or purine nucleoside phosphorylase activities. CONCLUSION Quercetin was shown to alter the balance of HUVEC metabolites towards a less inflamed phenotype, both alone and in the presence of pro-inflammatory stimuli. These changes are consistent with the inhibition of particular enzymes involved in purine metabolism by quercetin and its HUVEC metabolites.
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Affiliation(s)
- Besim Ozyel
- Nutrition and Dietetics DepartmentEuropean University of LefkeLefke, Northern Cyprus, TR‐10Mersin9910Turkey
| | - Gwénaëlle Le Gall
- Norwich Medical SchoolUniversity of East AngliaBob Champion Research and Education Building, James Watson Road, Norwich Research ParkNorwichNR4 7UQUK
| | - Paul W. Needs
- Quadram Institute BioscienceNorwich Research ParkNorwichNR4 7UQUK
| | - Paul A. Kroon
- Quadram Institute BioscienceNorwich Research ParkNorwichNR4 7UQUK
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108
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Yu Q, Li K, Zhao A, Wei M, Huang Z, Zhang Y, Chen Y, Lian T, Wang C, Xu L, Zhang Y, Xu C, Liu F. Sorafenib not only impairs endothelium-dependent relaxation but also promotes vasoconstriction through the upregulation of vasoconstrictive endothelin type B receptors. Toxicol Appl Pharmacol 2021; 414:115420. [PMID: 33503445 DOI: 10.1016/j.taap.2021.115420] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 01/06/2021] [Accepted: 01/21/2021] [Indexed: 01/01/2023]
Abstract
As a VEGF-targeting agent, sorafenib has been used to treat a number of solid tumors but can easily lead to adverse vascular effects. To elucidate the underlying mechanism, rat mesenteric arteries were subjected to organ cultured in the presence of different concentrations of sorafenib (0, 3, 6 and 9 mg/L) with or without inhibitors (U0126, 10-5 M; SB203580, 10-5 M; SP200126, 10-5 M) of MAPK kinases, and then acetylcholine- or sodium nitroprusside-induced vasodilation and sarafotoxin 6c-induced vasoconstriction were monitored by a sensitive myograph. The NO synthetases, the nitrite levels, the endothelial marker CD31,the ETB and ETA receptors and the phosphorylation of MAPK kinases were studied. Next, rats were orally administrated by sorafenib for 4 weeks (7.5 and 15 mg/kg/day), and their blood pressure, plasma ET-1, the ETB and ETA receptors and the phosphorylation of MAPK kinases in the mesenteric arteries were investigated. The results showed that sorafenib impairs endothelium-dependent vasodilation due to decreased NO levels and the low expression of eNOS and iNOS. Weak staining for CD31 indicated that sorafenib induced endothelial damage. Moreover, sorafenib caused the upregulation of vasoconstrictive ETB receptors, the enhancement of ETB receptor-mediated vasoconstriction and the activation of JNK/MAPK. Blocking the JNK, ERK1/2 and p38/MAPK signaling pathways by using the inhibitors significantly abolished ETB receptor-mediated vasoconstriction. Furthermore, it was observed that the oral administration of sorafenib caused an increase in blood pressure and plasma ET-1, upregulation of the ETB receptor and the activation of JNK in the mesenteric arteries. In conclusion, sorafenib not only impairs endothelium-dependent vasodilatation but also enhances ETB receptor-mediated vasoconstriction, which may be the causal factors for hypertension and other adverse vascular effects in patients treated with sorafenib.
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MESH Headings
- Angiogenesis Inhibitors/toxicity
- Animals
- Blood Pressure/drug effects
- Cell Proliferation/drug effects
- Cells, Cultured
- Endothelium, Vascular/drug effects
- Endothelium, Vascular/metabolism
- Endothelium, Vascular/physiopathology
- Extracellular Signal-Regulated MAP Kinases/metabolism
- Human Umbilical Vein Endothelial Cells/drug effects
- Human Umbilical Vein Endothelial Cells/metabolism
- Humans
- Hypertension/chemically induced
- Hypertension/metabolism
- Hypertension/physiopathology
- JNK Mitogen-Activated Protein Kinases/metabolism
- Male
- Mesenteric Artery, Superior/drug effects
- Mesenteric Artery, Superior/metabolism
- Mesenteric Artery, Superior/physiopathology
- Nitric Oxide/metabolism
- Rats, Sprague-Dawley
- Receptor, Endothelin B/genetics
- Receptor, Endothelin B/metabolism
- Signal Transduction
- Sorafenib/toxicity
- Tissue Culture Techniques
- Up-Regulation
- Vasoconstriction/drug effects
- Vasodilation/drug effects
- p38 Mitogen-Activated Protein Kinases/metabolism
- Rats
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Affiliation(s)
- Qi Yu
- Shaanxi Key Laboratory of Ischemic Cardiovascular Diseases & Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an 710021, China; Department of Histology and Embryology, Xi'an Medical University, Xi'an 710021, China; Department of Pharmacology, College of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, China.
| | - Kun Li
- Shaanxi Key Laboratory of Ischemic Cardiovascular Diseases & Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an 710021, China
| | - Andong Zhao
- Shaanxi Key Laboratory of Ischemic Cardiovascular Diseases & Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an 710021, China
| | - Mengqian Wei
- Shaanxi Key Laboratory of Ischemic Cardiovascular Diseases & Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an 710021, China
| | - Zhenhao Huang
- Shaanxi Key Laboratory of Ischemic Cardiovascular Diseases & Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an 710021, China
| | - Yunting Zhang
- Shaanxi Key Laboratory of Ischemic Cardiovascular Diseases & Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an 710021, China
| | - Ying Chen
- School of Computer Science and Technology, Xi'an University of Posts and Telecommunications, Xi'an 710121, China.
| | - Ting Lian
- Shaanxi Key Laboratory of Ischemic Cardiovascular Diseases & Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an 710021, China
| | - Chuan Wang
- Department of Pharmacology, College of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, China
| | - Li Xu
- Shaanxi Key Laboratory of Ischemic Cardiovascular Diseases & Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an 710021, China
| | - Yaping Zhang
- Shaanxi Key Laboratory of Ischemic Cardiovascular Diseases & Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an 710021, China
| | - Cangbao Xu
- Shaanxi Key Laboratory of Ischemic Cardiovascular Diseases & Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an 710021, China
| | - Fuqiang Liu
- Shaanxi Key Laboratory of Ischemic Cardiovascular Diseases & Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an 710021, China; Cardiovascular Department, Shaanxi Provincial People's Hospital, Xi'an 710010, China.
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Guizoni DM, Freitas IN, Victorio JA, Possebom IR, Araujo TR, Carneiro EM, Davel AP. Taurine treatment reverses protein malnutrition-induced endothelial dysfunction of the pancreatic vasculature: The role of hydrogen sulfide. Metabolism 2021; 116:154701. [PMID: 33417894 DOI: 10.1016/j.metabol.2021.154701] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 12/11/2020] [Accepted: 12/31/2020] [Indexed: 12/20/2022]
Abstract
BACKGROUND Protein malnutrition in childhood predisposes individuals to vascular and pancreatic endocrine dysfunction, thus increasing the risk of diabetes and hypertension. Because taurine may reduce cardiometabolic risk, we hypothesized that taurine treatment has a beneficial effect on the pancreatic vasculature during protein restriction. METHODS AND RESULTS Weaned mice were fed a normal or a low-protein diet and were treated with or without taurine for 3 months. The lieno-pancreatic artery (LPA) from low-protein diet-treated mice exhibited impaired endothelium-dependent relaxation to acetylcholine that was associated with decreased endothelium-derived hyperpolarization (EDH), hydrogen sulfide (H2S) production, and H2S-synthesizing CBS expression and impaired vasorelaxation to an H2S-donor, NaHS. These changes were prevented by taurine treatment. We compared the effects of taurine with the effects of the direct vasodilator hydralazine and found that both normalized blood pressure and the endothelial vasodilator function of the LPA in the mice fed a protein-restricted diet. However, only taurine restored the CBS expression in the LPA and insulin secretion in response to high glucose. The LPA supplies the pancreas and shares morphometry with the mesenteric resistance artery (MRA). However, in the MRA, low-protein diet-induced endothelial dysfunction is driven by impaired NOS-derived NO with no changes in H2S signaling. CONCLUSIONS The results suggest that taurine protects against protein malnutrition-induced endothelial dysfunction in the LPA by upregulating the CBS-H2S pathway. Considering the importance of the pancreatic vasculature for endocrine islet activity, taurine may be a potential therapy for the vascular and metabolic dysfunction associated with malnutrition and comorbidities.
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Affiliation(s)
- Daniele M Guizoni
- Laboratory of Vascular Biology, Institute of Biology, Department of Structural and Functional Biology, University of Campinas-UNICAMP, Campinas, SP, Brazil
| | - Israelle N Freitas
- Laboratory of Vascular Biology, Institute of Biology, Department of Structural and Functional Biology, University of Campinas-UNICAMP, Campinas, SP, Brazil
| | - Jamaira A Victorio
- Laboratory of Vascular Biology, Institute of Biology, Department of Structural and Functional Biology, University of Campinas-UNICAMP, Campinas, SP, Brazil
| | - Isabela R Possebom
- Laboratory of Vascular Biology, Institute of Biology, Department of Structural and Functional Biology, University of Campinas-UNICAMP, Campinas, SP, Brazil
| | - Thiago R Araujo
- Obesity and Comorbidities Research Center-OCRC, Institute of Biology, Department of Structural and Functional Biology, University of Campinas-UNICAMP, Campinas, SP, Brazil
| | - Everardo M Carneiro
- Obesity and Comorbidities Research Center-OCRC, Institute of Biology, Department of Structural and Functional Biology, University of Campinas-UNICAMP, Campinas, SP, Brazil
| | - Ana P Davel
- Laboratory of Vascular Biology, Institute of Biology, Department of Structural and Functional Biology, University of Campinas-UNICAMP, Campinas, SP, Brazil.
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Bik E, Mateuszuk L, Orleanska J, Baranska M, Chlopicki S, Majzner K. Chloroquine-Induced Accumulation of Autophagosomes and Lipids in the Endothelium. Int J Mol Sci 2021; 22:ijms22052401. [PMID: 33673688 PMCID: PMC7957661 DOI: 10.3390/ijms22052401] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 02/23/2021] [Accepted: 02/24/2021] [Indexed: 01/14/2023] Open
Abstract
Chloroquine (CQ) is an antimalarial drug known to inhibit autophagy flux by impairing autophagosome–lysosome fusion. We hypothesized that autophagy flux altered by CQ has a considerable influence on the lipid composition of endothelial cells. Thus, we investigated endothelial responses induced by CQ on human microvascular endothelial cells (HMEC-1). HMEC-1 cells after CQ exposure were measured using a combined methodology based on label-free Raman and fluorescence imaging. Raman spectroscopy was applied to characterize subtle chemical changes in lipid contents and their distribution in the cells, while the fluorescence staining (LipidTox, LysoTracker and LC3) was used as a reference method. The results showed that CQ was not toxic to endothelial cells and did not result in the endothelial inflammation at concentrations of 1–30 µM. Notwithstanding, it yielded an increased intensity of LipidTox, LysoTracker, and LC3 staining, suggesting changes in the content of neutral lipids, lysosomotropism, and autophagy inhibition, respectively. The CQ-induced endothelial response was associated with lipid accumulation and was characterized by Raman spectroscopy. CQ-induced autophagosome accumulation in the endothelium is featured by a pronounced alteration in the lipid profile, but not in the endothelial inflammation. Raman-based assessment of CQ-induced biochemical changes offers a better understanding of the autophagy mechanism in the endothelial cells.
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Affiliation(s)
- Ewelina Bik
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, 14 Bobrzynskiego Str., 30-348 Krakow, Poland; (E.B.); (L.M.); (J.O.); (M.B.); (S.C.)
- Faculty of Chemistry, Jagiellonian University, 2 Gronostajowa Str., 30-387 Krakow, Poland
| | - Lukasz Mateuszuk
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, 14 Bobrzynskiego Str., 30-348 Krakow, Poland; (E.B.); (L.M.); (J.O.); (M.B.); (S.C.)
| | - Jagoda Orleanska
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, 14 Bobrzynskiego Str., 30-348 Krakow, Poland; (E.B.); (L.M.); (J.O.); (M.B.); (S.C.)
| | - Malgorzata Baranska
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, 14 Bobrzynskiego Str., 30-348 Krakow, Poland; (E.B.); (L.M.); (J.O.); (M.B.); (S.C.)
- Faculty of Chemistry, Jagiellonian University, 2 Gronostajowa Str., 30-387 Krakow, Poland
| | - Stefan Chlopicki
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, 14 Bobrzynskiego Str., 30-348 Krakow, Poland; (E.B.); (L.M.); (J.O.); (M.B.); (S.C.)
- Chair of Pharmacology, Jagiellonian University, 16 Grzegorzecka Str., 31-531 Krakow, Poland
| | - Katarzyna Majzner
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, 14 Bobrzynskiego Str., 30-348 Krakow, Poland; (E.B.); (L.M.); (J.O.); (M.B.); (S.C.)
- Faculty of Chemistry, Jagiellonian University, 2 Gronostajowa Str., 30-387 Krakow, Poland
- Correspondence:
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Patrì A, Vargas M, Buonanno P, Annunziata MC, Russo D, Staibano S, Servillo G, Fabbrocini G. From SARS-CoV-2 hematogenous spreading to endothelial dysfunction: clinical-histopathological study of cutaneous signs of COVID-19. Diagn Pathol 2021; 16:16. [PMID: 33632250 PMCID: PMC7905980 DOI: 10.1186/s13000-021-01075-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 02/09/2021] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND To date, very few studies on clinical-histopathological correlations of cutaneous disorders associated with COVID-19 have been conducted. CASE PRESENTATION The Case 1 was a 90-year-old man, who tested positive for SARS-CoV-2 from a nasopharyngeal swab. Two days later, he was hospitalized and after eleven days transferred to Intensive Care Unit. A chest CT showed bilateral ground-glass opacities. Just that day, an erythematous maculo-papular rash appeared on trunk, shoulders and neck, becoming purpuric after few days. Histological evaluations revealed a chronic superficial dermatitis with purpuric aspects. The superficial and papillary dermis appeared edematous, with a perivascular lympho-granulocytic infiltrate and erythrocytic extravasation. At intraepithelial level, spongiosis and a granulocyte infiltrate were detected. Arterioles, capillaries and post-capillary venules showed endothelial swelling and appeared ectatic. The patient was treated with hydroxychloroquine, azithromycin, lopinavir-ritonavir and tocilizumab. Regrettably, due to severe lung impairment, he died. The Case 2 was a 85-year-old man, admitted to Intensive Care Unit, where he was intubated. He had tested positive for SARS-CoV-2 from a nasopharyngeal swab two days before. A chest RX showed bilateral atypical pneumonia. After seven days, a cutaneous reddening involving trunk, upper limbs, neck and face developed, configuring a sub-erythroderma. Histological evaluations displayed edema in the papillary and superficial reticular dermis, and a perivascular lymphocytic infiltrate in the superficial dermis. The patient was treated with hydroxychloroquine, azithromycin, lopinavir-ritonavir and tocilizumab. Sub-erythroderma as well as respiratory symptoms gradually improved until healing. CONCLUSIONS The endothelial swelling detected in the Case 1 could be a morphological expression of SARS-CoV-2-induced endothelial dysfunction. We hypothesize that cutaneous damage could be initiated by endothelial dysfunction, caused by SARS-CoV-2 infection of endothelial cells or induced by immune system activation. The disruption of endothelial integrity could enhance microvascular permeability, extravasation of inflammatory cells and cytokines, with cutaneous injury. The Case 2 developed a sub-erythroderma associated with COVID-19, and a non-specific chronic dermatitis was detected at histological level. We speculate that a purpuric rash could represent the cutaneous sign of a more severe coagulopathy, as highlighted histologically by vascular abnormalities, while a sub-erythroderma could be expression of viral hematogenous spreading, inducing a non-specific chronic dermatitis.
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Affiliation(s)
- Angela Patrì
- Department of Clinical Medicine and Surgery, Section of Dermatology and Venereology, University of Naples Federico II, Via Pansini 5, Napoli, Italy.
| | - Maria Vargas
- Department of Neurosciences, Intensive Care Unit, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Via Pansini 5, Napoli, Italy
| | - Pasquale Buonanno
- Department of Neurosciences, Intensive Care Unit, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Via Pansini 5, Napoli, Italy
| | - Maria Carmela Annunziata
- Department of Clinical Medicine and Surgery, Section of Dermatology and Venereology, University of Naples Federico II, Via Pansini 5, Napoli, Italy
| | - Daniela Russo
- Department of Advanced Biomedical Sciences, Pathology Section, University of Naples Federico II, via Pansini 5, Naples, Italy.
| | - Stefania Staibano
- Department of Advanced Biomedical Sciences, Pathology Section, University of Naples Federico II, via Pansini 5, Naples, Italy
| | - Giuseppe Servillo
- Department of Neurosciences, Intensive Care Unit, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Via Pansini 5, Napoli, Italy
| | - Gabriella Fabbrocini
- Department of Clinical Medicine and Surgery, Section of Dermatology and Venereology, University of Naples Federico II, Via Pansini 5, Napoli, Italy
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Marczynski P, Meineck M, Xia N, Li H, Kraus D, Roth W, Möckel T, Boedecker S, Schwarting A, Weinmann-Menke J. Vascular Inflammation and Dysfunction in Lupus-Prone Mice-IL-6 as Mediator of Disease Initiation. Int J Mol Sci 2021; 22:ijms22052291. [PMID: 33669022 PMCID: PMC7956579 DOI: 10.3390/ijms22052291] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 02/16/2021] [Accepted: 02/21/2021] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND Systemic lupus erythematosus (SLE) is a chronic inflammatory autoimmune disease and patients are under an increased risk for cardiovascular (CV) events and mortality. The increased CV risk for patients with SLE seems to be caused by a premature and accelerated atherosclerosis, attributable to lupus-specific risk factors (i.e., increased systemic inflammation, altered immune status), apart from traditional CV risk factors. To date, there is no established experimental model to explore the pathogenesis of this increased CV risk in SLE patients. METHODS Here we investigated whether MRL-Faslpr mice, which develop an SLE-like phenotype, may serve as a model to study lupus-mediated vascular disease. Therefore, MRL-Faslpr, MRL-++, and previously generated Il6-/- MRL-Faslpr mice were used to evaluate vascular changes and possible mechanisms of vascular dysfunction and damage. RESULTS Contrary to MRL-++ control mice, lupus-prone MRL-Faslpr mice exhibited a pronounced vascular and perivascular leukocytic infiltration in various organs; expression of pro-inflammatory cytokines in the aorta and kidney was augmented; and intima-media thickness of the aorta was increased. IL-6 deficiency reversed these changes and restored aortic relaxation. CONCLUSION Our findings demonstrate that the MRL-Faslpr mouse model is an excellent tool to investigate vascular damage in SLE mice. Moreover, IL-6 promotes vascular inflammation and damage and could potentially be a therapeutic target for the treatment of accelerated arteriosclerosis in SLE.
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Affiliation(s)
- Paul Marczynski
- Department of Nephrology and Rheumatology, University Center of Autoimmunity, Johannes-Gutenberg University Mainz, 55131 Mainz, Germany; (P.M.); (M.M.); (D.K.); (T.M.); (S.B.); (A.S.)
| | - Myriam Meineck
- Department of Nephrology and Rheumatology, University Center of Autoimmunity, Johannes-Gutenberg University Mainz, 55131 Mainz, Germany; (P.M.); (M.M.); (D.K.); (T.M.); (S.B.); (A.S.)
| | - Ning Xia
- Institute of Pharmacology, Johannes-Gutenberg University Mainz, 55131 Mainz, Germany; (N.X.); (H.L.)
| | - Huige Li
- Institute of Pharmacology, Johannes-Gutenberg University Mainz, 55131 Mainz, Germany; (N.X.); (H.L.)
| | - Daniel Kraus
- Department of Nephrology and Rheumatology, University Center of Autoimmunity, Johannes-Gutenberg University Mainz, 55131 Mainz, Germany; (P.M.); (M.M.); (D.K.); (T.M.); (S.B.); (A.S.)
| | - Wilfried Roth
- Institute of Pathology, Medical Center of the Johannes-Gutenberg University Mainz, 55131 Mainz, Germany;
| | - Tamara Möckel
- Department of Nephrology and Rheumatology, University Center of Autoimmunity, Johannes-Gutenberg University Mainz, 55131 Mainz, Germany; (P.M.); (M.M.); (D.K.); (T.M.); (S.B.); (A.S.)
| | - Simone Boedecker
- Department of Nephrology and Rheumatology, University Center of Autoimmunity, Johannes-Gutenberg University Mainz, 55131 Mainz, Germany; (P.M.); (M.M.); (D.K.); (T.M.); (S.B.); (A.S.)
| | - Andreas Schwarting
- Department of Nephrology and Rheumatology, University Center of Autoimmunity, Johannes-Gutenberg University Mainz, 55131 Mainz, Germany; (P.M.); (M.M.); (D.K.); (T.M.); (S.B.); (A.S.)
| | - Julia Weinmann-Menke
- Department of Nephrology and Rheumatology, University Center of Autoimmunity, Johannes-Gutenberg University Mainz, 55131 Mainz, Germany; (P.M.); (M.M.); (D.K.); (T.M.); (S.B.); (A.S.)
- Correspondence: ; Tel.: +49-6131-176774; Fax: +49-6131-17476774
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Zhang Y, Luo W, Li H, Yu G, Luo H, Leng J, Ge J, Zeng R, Guo T, Yin Y, Zhou Y, Liu B. Larger endothelium-dependent contractions in iliac arteries of adult SHRs are attributed to differential downregulation of TP and EP3 receptors in the vessels of WKYs and SHRs during the transition from adolescence to adulthood. Eur J Pharmacol 2021; 893:173828. [PMID: 33347824 DOI: 10.1016/j.ejphar.2020.173828] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 12/12/2020] [Accepted: 12/16/2020] [Indexed: 02/05/2023]
Abstract
This study was to determine how endothelium-dependent contractions (EDCs) change in iliac arteries of Wistar-Kyoto (WKYs) and spontaneously hypertensive rats (SHRs) during the transition from adolescence to adulthood and the underlying mechanism(s). We also aimed to elucidate effects of L-798106, an EP3 receptor antagonist, on EDCs and the blood pressure increase in adolescent SHRs. Blood vessels were isolated for functional and biochemical analyses. EDCs were comparable in adolescent iliac arteries of both strains, and contractions to ACh, prostacyclin (PGI2), the EP3 receptor agonist sulprostone and the TP receptor agonist U46619 in adult vessels were less prominent compared with those in the adolescents, while the attenuation of vasoconstrictions to ACh, PGI2 or U46619 with age was to a lesser extent in SHRs. PGI2 production was decreased to a similar level in adult arteries. TP and EP3 expressions were downregulated in adult vessels, whereas the extent of TP downregulation was less in SHRs. L-798106 partially suppressed the vasoconstrictions to U46619 and attenuated EDCs to a greater extent than SQ29548, and administration of L-798106 blunted the blood pressure increase with age in prehypertensive SHRs. These results demonstrate the comparable EDCs in iliac arteries of the adolescents are decreased in the adults, but relatively larger EDCs in adult SHRs can be a reflection of differential downregulation of TP and EP3 receptors during the transition from adolescence to adulthood. Also, our data suggest that blockade of both TP and EP3 receptors starting from the prehypertensive stage suppresses EDCs and the development of hypertension in SHRs.
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MESH Headings
- Age Factors
- Animals
- Antihypertensive Agents/pharmacology
- Blood Pressure/drug effects
- Disease Models, Animal
- Down-Regulation
- Endothelium, Vascular/drug effects
- Endothelium, Vascular/metabolism
- Endothelium, Vascular/physiopathology
- Hypertension/genetics
- Hypertension/metabolism
- Hypertension/physiopathology
- Hypertension/prevention & control
- Iliac Artery/metabolism
- Iliac Artery/physiopathology
- Male
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/physiopathology
- Rats, Inbred WKY
- Rats, Sprague-Dawley
- Receptors, Prostaglandin E, EP3 Subtype/antagonists & inhibitors
- Receptors, Prostaglandin E, EP3 Subtype/genetics
- Receptors, Prostaglandin E, EP3 Subtype/metabolism
- Receptors, Thromboxane/antagonists & inhibitors
- Receptors, Thromboxane/genetics
- Receptors, Thromboxane/metabolism
- Signal Transduction
- Vasoconstriction/drug effects
- Rats
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Affiliation(s)
- Yingzhan Zhang
- Cardiovascular Research Center, Shantou University Medical College, Shantou, China
| | - Wenhong Luo
- Bio-analytical Laboratory, Shantou University Medical College, Shantou, China
| | - Hui Li
- Bio-analytical Laboratory, Shantou University Medical College, Shantou, China
| | - Gang Yu
- Cardiovascular Research Center, Shantou University Medical College, Shantou, China
| | - Hongjun Luo
- Bio-analytical Laboratory, Shantou University Medical College, Shantou, China
| | - Jing Leng
- Cardiovascular Research Center, Shantou University Medical College, Shantou, China
| | - Jiahui Ge
- Cardiovascular Research Center, Shantou University Medical College, Shantou, China
| | - Ruhui Zeng
- Cardiovascular Research Center, Shantou University Medical College, Shantou, China
| | - Tingting Guo
- Cardiovascular Research Center, Shantou University Medical College, Shantou, China
| | - Yehu Yin
- Cardiovascular Research Center, Shantou University Medical College, Shantou, China
| | - Yingbi Zhou
- Cardiovascular Research Center, Shantou University Medical College, Shantou, China.
| | - Bin Liu
- Cardiovascular Research Center, Shantou University Medical College, Shantou, China.
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Yin M, Li C, Jiang J, Le J, Luo B, Yang F, Fang Y, Yang M, Deng Z, Ni W, Shao J. Cell adhesion molecule-mediated therapeutic strategies in atherosclerosis: From a biological basis and molecular mechanism to drug delivery nanosystems. Biochem Pharmacol 2021; 186:114471. [PMID: 33587918 DOI: 10.1016/j.bcp.2021.114471] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 01/30/2021] [Accepted: 02/08/2021] [Indexed: 01/13/2023]
Abstract
Atherosclerosis (AS), characterized by pathological constriction of blood vessels due to chronic low-grade inflammation and lipid deposition, is a leading cause of human morbidity and mortality worldwide. Cell adhesion molecules (CAMs) have the ability to regulate the inflammatory response and endothelial function, as well as potentially driving plaque rupture, which all contribute to the progression of AS. Moreover, recent advances in the development of clinical agents in the cardiovascular field are based on CAMs, which show promising results in the fight against AS. Here, we review the current literature on mechanisms by which CAMs regulate atherosclerotic progression from the earliest induction of inflammation to plaques formation. In particular, we focused on therapeutic strategies based on CAMs inhibitors that prevent leukocyte from migrating to endothelium, including high-affinity antibodies and antagonists, nonspecific traditional medicinal formulas and lipid lowering drugs. The CAMs-based drug delivery nanosystem and the available data on the more reasonable and effective clinical application of CAMs inhibitors have been emphasized, raising hope for further progress in the field of AS therapy.
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Affiliation(s)
- Mengdie Yin
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Chao Li
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Jiali Jiang
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Jingqing Le
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Bangyue Luo
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Fang Yang
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Yifan Fang
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Mingyue Yang
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Zhenhua Deng
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Wenxin Ni
- Ocean College, Minjiang University, Fuzhou 350108, China
| | - Jingwei Shao
- Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, College of Chemistry, Fuzhou University, Fuzhou 350116, China.
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Wee CL, Mokhtar SS, Singh KKB, Yahaya S, Leung SWS, Rasool AHG. Calcitriol Supplementation Ameliorates Microvascular Endothelial Dysfunction in Vitamin D-Deficient Diabetic Rats by Upregulating the Vascular eNOS Protein Expression and Reducing Oxidative Stress. Oxid Med Cell Longev 2021; 2021:3109294. [PMID: 33623633 PMCID: PMC7875614 DOI: 10.1155/2021/3109294] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 12/14/2020] [Accepted: 01/20/2021] [Indexed: 12/28/2022]
Abstract
Diabetes mellitus contributes to macro- and microvascular complications, leading to adverse cardiovascular events. This study examined the effects of vitamin D deficiency on the vascular function and tissue oxidative status in the microcirculation of diabetic rats and to determine whether these effects can be reversed with calcitriol (active vitamin D metabolite) supplementation. Streptozotocin-induced diabetic rats were fed for 10 weeks with control diet (DC) or vitamin D-deficient diet without (DD) or with oral calcitriol supplementation (0.15 μg/kg) in the last four weeks (DDS) (10 rats each group). A nondiabetic rat group that received control diet was also included (NR). After 10 weeks, rats were sacrificed; mesenteric arterial rings with and without endothelium were studied using wire myograph. Western blotting of the mesenteric arterial tissue was performed to determine the protein expression of endothelial nitric oxide synthase (eNOS) enzyme. Antioxidant enzyme superoxide dismutase (SOD) activity and oxidative stress marker malondialdehyde (MDA) levels in the mesenteric arterial tissue were also measured. The DC group had significantly lower acetylcholine-induced relaxation and augmented endothelium-dependent contraction, with reduced eNOS expression, compared to NR rats. In mesenteric arteries of DD, acetylcholine-induced endothelium-dependent and sodium nitroprusside-induced endothelium-independent relaxations were lower than those in DC. Calcitriol supplementation in DDS restored endothelium-dependent relaxation. Mesenteric artery endothelium-dependent contraction of DD was greater than DC; it was not affected by calcitriol supplementation. The eNOS protein expression and SOD activity were significantly lower while MDA levels were greater in DD compared to DC; these effects were not observed in DDS that received calcitriol supplementation. In conclusion, vitamin D deficiency causes eNOS downregulation and oxidative stress, thereby impairing the vascular function and posing an additional risk for microvascular complications in diabetes. Calcitriol supplementation to diabetics with vitamin D deficiency could potentially be useful in the management of or as an adjunct to diabetes-related cardiovascular complications.
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Affiliation(s)
- Chee Lee Wee
- Department of Pharmacology, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kota Bharu, Kelantan, Malaysia
| | - Siti Safiah Mokhtar
- Department of Pharmacology, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kota Bharu, Kelantan, Malaysia
| | - Kirnpal Kaur Banga Singh
- Department of Microbiology and Parasitology, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kota Bharu, Kelantan, Malaysia
| | - Sahran Yahaya
- Department of Orthopaedics, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kota Bharu, Kelantan, Malaysia
| | - Susan Wai Sum Leung
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Aida Hanum Ghulam Rasool
- Department of Pharmacology, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kota Bharu, Kelantan, Malaysia
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da Costa DT, Gonçalves LT, Giesen JAS, Dos Santos RL. Progesterone modulates endothelium-dependent coronary vascular reactivity in SHR. J Mol Endocrinol 2021; 66:171-180. [PMID: 33410765 DOI: 10.1530/jme-20-0187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 01/05/2021] [Indexed: 11/08/2022]
Abstract
Although progesterone has the ability to promote dilation of vascular smooth muscle, its role in coronary circulation is still poorly characterized, especially in essential hypertension and in a model of endogenous deficiency of ovarian hormones. Thus, this study evaluated the effect of progesterone treatment on endothelium-dependent coronary vascular reactivity in hypertensive (SHR) and ovariectomized rats. Adult SHR aged 8-10 weeks were divided into: SHAM, Ovariectomized (OVX) and Ovariectomized + treatment with 2 mg/kg/day of progesterone for 15 days (OVX-P4). Coronary vascular reactivity was investigated using the modified Langendorff method. After stabilization, baseline coronary perfusion pressure (CPP) was recorded and vascular reactivity to bradykinin (BK, 0.1-1000 ng) were assessed before and after infusion, either individually or in combination, with Nω-nitro-l-arginine methyl ester (l-NAME), indomethacin or clotrimazole. Scanning electron microscopy was used for qualitative analysis of the endothelium. OVX and OVX-P4 groups had a higher baseline CPP compared to that of the SHAM group. BK was able to promote vasodilation in all groups. However, relaxation to BK was less pronounced in the OVX group when compared to SHAM, with architecture loss and areas of cell atrophy having been observed. Progesterone treatment prevented this injury. Perfusion with l-NAME induced greater damage to the SHAM group, while the use of indomethacin led to a significant reduction in the vasodilator response to BK in the OVX-P4 group. Taken together, our results show that progesterone modulates endothelium-dependent coronary vasodilation in SHR ovariectomized, preventing damage caused by ovarian hormonal deficiency through a mechanism that involves prostanoid pathway.
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Affiliation(s)
- Débora Tacon da Costa
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Vitoria, Espirito Santo, Brazil
| | - Leticia Tinoco Gonçalves
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Vitoria, Espirito Santo, Brazil
| | - Jéssyca Aparecida Soares Giesen
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Vitoria, Espirito Santo, Brazil
| | - Roger Lyrio Dos Santos
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Vitoria, Espirito Santo, Brazil
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Xu X, Wang C, Wu Y, Houck K, Hilton T, Zhou A, Wu X, Han C, Yang M, Yang W, Shi FD, Stolla M, Cruz MA, Li M, Zhang J, Dong JF. Conformation-dependent blockage of activated VWF improves outcomes of traumatic brain injury in mice. Blood 2021; 137:544-555. [PMID: 33507292 PMCID: PMC7845006 DOI: 10.1182/blood.2020007364] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 07/27/2020] [Indexed: 12/22/2022] Open
Abstract
Traumatic brain injury-induced coagulopathy (TBI-IC) causes life-threatening secondary intracranial bleeding. Its pathogenesis differs mechanistically from that of coagulopathy arising from extracranial injuries and hemorrhagic shock, but it remains poorly understood. We report results of a study designed to test the hypothesis that von Willebrand factor (VWF) released during acute TBI is intrinsically hyperadhesive because its platelet-binding A1-domain is exposed and contributes to TBI-induced vascular leakage and consumptive coagulopathy. This hyperadhesive VWF can be selectively blocked by a VWF A2-domain protein to prevent TBI-IC and to improve neurological function with a minimal risk of bleeding. We demonstrated that A2 given through intraperitoneal injection or IV infusion reduced TBI-induced death by >50% and significantly improved the neurological function of C57BL/6J male mice subjected to severe lateral fluid percussion injury. A2 protected the endothelium from extracellular vesicle-induced injury, reducing TBI-induced platelet activation and microvesiculation, and preventing a TBI-induced hypercoagulable state. A2 achieved this therapeutic efficacy by specifically blocking the A1 domain exposed on the hyperadhesive VWF released during acute TBI. These results suggest that VWF plays a causal role in the development of TBI-IC and is a therapeutic target for this life-threatening complication of TBI.
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Affiliation(s)
- Xin Xu
- Bloodworks Research Institute, Seattle, WA
- Departments of Neurosurgery, Neurology, and Obstetrics & Gynecology, Tianjin Medical University General Hospital, Tianjin, China
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Chenyu Wang
- Institute of Pathology, School of Medical Sciences, and the Gansu Provincial Key Laboratory of Preclinical Study for New Drug Development, Lanzhou University, Lanzhou, China
| | - Yingang Wu
- Department of Neurosurgery, the First Affiliated Hospital, University of Science and Technology, Hefei, China
| | | | | | | | | | - Cha Han
- Departments of Neurosurgery, Neurology, and Obstetrics & Gynecology, Tianjin Medical University General Hospital, Tianjin, China
| | - Mengchen Yang
- Departments of Neurosurgery, Neurology, and Obstetrics & Gynecology, Tianjin Medical University General Hospital, Tianjin, China
| | - Wei Yang
- Bloodworks Research Institute, Seattle, WA
- NanoString Technologies, Seattle, WA
| | - Fu-Dong Shi
- Departments of Neurosurgery, Neurology, and Obstetrics & Gynecology, Tianjin Medical University General Hospital, Tianjin, China
| | | | - Miguel A Cruz
- Cardiovascular Research Section, Department of Medicine, Baylor College of Medicine, Houston, TX
- Center for Translational Research on Inflammatory Diseases, Michael E. DeBakey Veterans Affairs (VA) Medical Center, Houston, TX; and
| | - Min Li
- Institute of Pathology, School of Medical Sciences, and the Gansu Provincial Key Laboratory of Preclinical Study for New Drug Development, Lanzhou University, Lanzhou, China
| | - Jianning Zhang
- Departments of Neurosurgery, Neurology, and Obstetrics & Gynecology, Tianjin Medical University General Hospital, Tianjin, China
| | - Jing-Fei Dong
- Bloodworks Research Institute, Seattle, WA
- Division of Hematology, Department of Medicine, University of Washington, School of Medicine, Seattle, WA
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Son M, Oh S, Jang JT, Son KH, Byun K. Pyrogallol-Phloroglucinol-6 6-Bieckol on Attenuates High-Fat Diet-Induced Hypertension by Modulating Endothelial-to-Mesenchymal Transition in the Aorta of Mice. Oxid Med Cell Longev 2021; 2021:8869085. [PMID: 33574986 PMCID: PMC7857897 DOI: 10.1155/2021/8869085] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 12/20/2020] [Accepted: 01/05/2021] [Indexed: 12/13/2022]
Abstract
Endothelial-to-mesenchymal transition (EndMT), which is involved in the development of various cardiovascular diseases, is induced by dyslipidemia or obesity. In dyslipidemia, the increased levels of oxidized low-density lipoproteins (oxLDL) upregulated the lectin-type oxidized LDL receptor 1 (Lox-1), which then upregulated the down signaling pathways of PKC-α/MMPs/TGF-β/SMAD2 or 3 and increased the EndMT. In this study, we investigated the effect of pyrogallol-phloroglucinol-6,6-bieckol (PPB), which is a compound of Ecklonia cava (E. cava), on decreased blood pressure (BP) by attenuating the EndMT in a high-fat diet- (HFD-) fed animal model. We also investigated PPB's attenuation effect on EndMT in oxLDL-treated mouse endothelial cells as an in vitro model. The results indicated that, in the aorta or endothelial cells of mice, the HFD or oxLDL treatment significantly increased the expression of Lox-1/PKC-α/MMP9/TGF-β/SMAD2/SMAD3. The PPB treatment significantly decreased its expression. In contrast, the HFD or oxLDL treatment significantly decreased the expression of the EC markers (PECAM-1 and vWF) while the PPB treatment significantly increased them. Moreover, the HFD or oxLDL treatment significantly increased the expression of the mesenchymal cell markers (α-SMA and vimentin) while PPB treatment significantly decreased them. PPB decreased the intima-media thickness and extracellular matrix amount of the aorta and attenuated the BP, which was increased by the HFD. In conclusion, PPB attenuated the upregulation of Lox-1/PKC-α/MMP9/TGF-β/SMAD2 and 3 and restored the EndMT in HFD-fed animals. Moreover, PPB showed a restoring effect on HFD-induced hypertension.
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Affiliation(s)
- Myeongjoo Son
- Department of Anatomy & Cell Biology, Gachon University College of Medicine, Incheon 21936, Republic of Korea
- Functional Cellular Networks Laboratory, College of Medicine, Department of Medicine, Graduate School and Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Republic of Korea
| | - Seyeon Oh
- Department of Anatomy & Cell Biology, Gachon University College of Medicine, Incheon 21936, Republic of Korea
| | - Ji Tae Jang
- Aqua Green Technology Co., Ltd., Smart Bldg., Jeju Science Park, Cheomdan-ro, Jeju 63243, Republic of Korea
| | - Kuk Hui Son
- Department of Thoracic and Cardiovascular Surgery, Gachon University Gil Medical Center, Gachon University, Incheon 21565, Republic of Korea
| | - Kyunghee Byun
- Department of Anatomy & Cell Biology, Gachon University College of Medicine, Incheon 21936, Republic of Korea
- Functional Cellular Networks Laboratory, College of Medicine, Department of Medicine, Graduate School and Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon 21999, Republic of Korea
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Abstract
SARS-CoV-2 infection generally begins in the respiratory tract where it can cause bilateral pneumonia. The disease can evolve into acute respiratory distress syndrome and multi-organ failure, due to viral spread in the blood and an excessive inflammatory reaction including cytokine storm. Antiviral and anti-cytokine drugs have proven to be poorly or in-effective in stopping disease progression, and mortality or serious chronic damage is common in severely ill cases. The low efficacy of antiviral drugs is probably due to late administration, when the virus has triggered the inflammatory reaction and is no longer the main protagonist. The relatively poor efficacy of anti-cytokine drugs is explained by the fact that they act on one or a few of the dozens of cytokines involved, and because other mediators of inflammation - reactive oxygen and nitrogen species - are not targeted. When produced in excess, reactive species cause extensive cell and tissue damage. The only drug known to inhibit the excessive production of reactive species and cytokines is methylene blue, a low-cost dye with antiseptic properties used effectively to treat malaria, urinary tract infections, septic shock, and methaemoglobinaemia. We propose testing methylene blue to contrast Covid-related acute respiratory distress syndrome, but particularly suggest testing it early in Covid infections to prevent the hyper-inflammatory reaction responsible for the serious complications of the disease.
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Affiliation(s)
- Giulio Scigliano
- Fondazione IRCCS Istituto Neurologico Carlo Besta, Via Padova, 113, 20127 Milan, Italy.
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Karki P, Birukov KG. Oxidized Phospholipids in Control of Endothelial Barrier Function: Mechanisms and Implication in Lung Injury. Front Endocrinol (Lausanne) 2021; 12:794437. [PMID: 34887839 PMCID: PMC8649713 DOI: 10.3389/fendo.2021.794437] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 11/05/2021] [Indexed: 01/25/2023] Open
Abstract
Earlier studies investigating the pathogenesis of chronic vascular inflammation associated with atherosclerosis described pro-inflammatory and vascular barrier disruptive effects of lipid oxidation products accumulated in the sites of vascular lesion and atherosclerotic plaque. However, accumulating evidence including studies from our group suggests potent barrier protective and anti-inflammatory properties of certain oxidized phospholipids (OxPLs) in the lung vascular endothelium. Among these OxPLs, oxidized 1-palmitoyl-2-arachdonyl-sn-glycero-3-phosphocholine (OxPAPC) causes sustained enhancement of lung endothelial cell (EC) basal barrier properties and protects against vascular permeability induced by a wide variety of agonists ranging from bacterial pathogens and their cell wall components, endotoxins, thrombin, mechanical insults, and inflammatory cytokines. On the other hand, truncated OxPLs cause acute endothelial barrier disruption and potentiate inflammation. It appears that multiple signaling mechanisms triggering cytoskeletal remodeling are involved in OxPLs-mediated regulation of EC barrier. The promising vascular barrier protective and anti-inflammatory properties exhibited by OxPAPC and its particular components that have been established in the cellular and animal models of sepsis and acute lung injury has prompted consideration of OxPAPC as a prototype therapeutic molecule. In this review, we will summarize signaling and cytoskeletal mechanisms involved in OxPLs-mediated damage, rescue, and restoration of endothelial barrier in various pathophysiological settings and discuss a future potential of OxPAPC in treating lung disorders associated with endothelial barrier dysfunction.
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Affiliation(s)
- Pratap Karki
- Department of Medicine, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Konstantin G. Birukov
- Department of Anesthesiology, University of Maryland School of Medicine, Baltimore, MD, United States
- *Correspondence: Konstantin G. Birukov,
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Ji XW, Lyu HJ, Zhou GH, Wu B, Zhu YY, Wu TH, Zhang F, Jin SN, Cho KW, Wen JF. Physcion, a tetra-substituted 9,10-anthraquinone, prevents homocysteine-induced endothelial dysfunction by activating Ca 2+- and Akt-eNOS-NO signaling pathways. Phytomedicine 2021; 81:153410. [PMID: 33285470 DOI: 10.1016/j.phymed.2020.153410] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 11/11/2020] [Accepted: 11/14/2020] [Indexed: 06/12/2023]
Abstract
BACKGROUND Homocysteine (Hcy) induced vascular endothelial dysfunction is known to be closely associated with oxidative stress and impaired NO system. 1,8-Dihydroxy-3-methoxy-6-methylanthracene-9,10-dione (physcion) has been known to has antioxidative and anti-inflammatory properties. PURPOSE The purpose of the present study was to define the protective effect of physcion on Hcy-induced endothelial dysfunction and its mechanisms involved. STUDY DESIGN AND METHODS Hyperhomocysteinemia (HHcy) rat model was induced by feeding 3% methionine. A rat thoracic aortic ring model was used to investigate the effects of physcion on Hcy-induced impairment of endothelium-dependent relaxation. Two doses, low (L, 30 mg/kg/day) and high (H, 50 mg/kg/day) of physcion were used in the present study. To construct Hcy-injured human umbilical vein endothelial cells (HUVECs) model, the cells treated with 3 mM Hcy. The effects of physcion on Hcy-induced HUVECs cytotoxicity and apoptosis were studied using MTT and flow cytometry. Confocal analysis was used to determine the levels of intracellular Ca2+. The levels of protein expression of the apoptosis-related markers Bcl-2, Bax, caspase-9/3, and Akt and endothelial nitric oxide synthase (eNOS) were evaluated by western blot. RESULTS In the HHcy rat model, plasma levels of Hcy and malondialdehyde (MDA) were elevated (20.45 ± 2.42 vs. 4.67 ± 1.94 μM, 9.42 ± 0.48 vs. 3.47 ± 0.59 nM, p < 0.001 for both), whereas superoxide dismutase (SOD) and nitric oxide (NO) levels were decreased (77.11 ± 4.78 vs. 115.02 ± 5.63 U/ml, 44.51 ± 4.45 vs. 64.18 ± 5.34 μM, p < 0.001 and p < 0.01, respectively). However, treatment with physcion significantly reversed these changes (11.82 ± 2.02 vs. 20.45 ± 2.42 μM, 5.97 ± 0.72 vs. 9.42 ± 0.48 nM, 108.75 ± 5.65 vs. 77.11 ± 4.78 U/ml, 58.14 ± 6.02 vs. 44.51 ± 4.45 μM, p < 0.01 for all). Physcion also prevented Hcy-induced impairment of endothelium-dependent relaxation in HHcy rats (1.56 ± 0.06 vs. 15.44 ± 2.53 nM EC50 for ACh vasorelaxation, p < 0.05 vs. HHcy). In Hcy-injured HUVECs, physcion inhibited the impaired viability, apoptosis and reactive oxygen species. Hcy treatment significantly increased the protein phosphorylation levels of p38 (2.26 ± 0.20 vs. 1.00 ± 0.12, p <0.01), ERK (2.11 ± 0.21 vs. 1.00 ± 0.11, p <0.01) and JNK. Moreover, physcion reversed the Hcy-induced apoptosis related parameter changes such as decreased mitochondrial membrane potential (MMP) and Bcl-2/Bax protein ratio, and increased protein expression of caspase-9/3 in HUVECs. Furthermore, the downregulation of Ca2+, Akt, eNOS and NO caused by Hcy were recovered with physcion treatment in HUVECs. CONCLUSION Physcion prevents Hcy-induced endothelial dysfunction by activating Ca2+- and Akt-eNOS-NO signaling pathways. This study provides the first evidence that physcion might be a candidate agent for the prevention of cardiovascular disease induced by Hcy.
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Affiliation(s)
- Xiao Wei Ji
- School of Pharmacy, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, Shandong, 271016, China
| | - Hang Ji Lyu
- Graduate department, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, Shandong, 271016, China
| | - Guang Hai Zhou
- Institute of Cardiovascular Endocrinology, Key Laboratory of Atherosclerosis in Universities of Shandong, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, Shandong, 271000, China
| | - Bo Wu
- School of Pharmacy, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, Shandong, 271016, China
| | - Yuan Yuan Zhu
- School of Pharmacy, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, Shandong, 271016, China
| | - Tian Hua Wu
- School of Pharmacy, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, Shandong, 271016, China
| | - Feng Zhang
- Institute of Cardiovascular Endocrinology, Key Laboratory of Atherosclerosis in Universities of Shandong, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, Shandong, 271000, China
| | - Song Nan Jin
- School of Pharmacy, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, Shandong, 271016, China.
| | - Kyung Woo Cho
- Institute of Cardiovascular Endocrinology, Key Laboratory of Atherosclerosis in Universities of Shandong, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, Shandong, 271000, China
| | - Jin Fu Wen
- Institute of Cardiovascular Endocrinology, Key Laboratory of Atherosclerosis in Universities of Shandong, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, Shandong, 271000, China.
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Abstract
ABSTRACT The involvement of the vascular endothelium in the complications of coronavirus disease 2019 is now recognized. Chief among these are pulmonary endotheliitis, cytokine storm, endotoxic shock, and cardiovascular collapse. This Perspectives article is focused on therapeutical strategies to reduce the risk of these complications by targeting the vascular endothelium as a part of the overall treatment of coronavirus disease 2019.
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Affiliation(s)
- Tatsiana Suvorava
- Institute of Pharmacology and Clinical Pharmacology, University Hospital, Duesseldorf, Germany; and
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Taghizadeh S, Izadi A, Shirazi S, Parizad M, Pourghassem Gargari B. The effect of coenzyme Q10 supplementation on inflammatory and endothelial dysfunction markers in overweight/obese polycystic ovary syndrome patients. Gynecol Endocrinol 2021; 37:26-30. [PMID: 32544011 DOI: 10.1080/09513590.2020.1779689] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
BACKGROUND This study aimed at determining the effects of coenzyme Q10 (CoQ10) supplementation on the inflammatory and endothelial dysfunction indices among overweight and obese women with polycystic ovary syndrome (PCOS). METHODS This randomized double-blind, placebo-controlled clinical trial was performed among overweight and obese women diagnosed with PCOS. Forty three PCOS women were randomly assigned to two groups: one group received 200 mg CoQ10 capsules per day (n = 22) and the other received placebo (n = 21) for 8 weeks. Biomarkers of inflammation and endothelial dysfunction including high sensitivity C-reactive protein (hs-CRP), tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), vascular cell adhesion molecule-1 (VCAM-1), intercellular adhesion molecule-1 (ICAM-1) and E-selectin were measured and compared before and after the intervention. RESULTS At the end of study, compared with pldacebo, CoQ10 supplementation resulted in significant decreases in serum levels of TNF-α (p = 0.009), hs-CRP and IL-6 (p = 0.001, p = 0.007, respectively). In addition, supplementation with CoQ10 resulted in a significant reduction in serum VCAM-1 (p = .002) and E-selectin (p = .006) compared with the control group. There were no significant differences for serum ICAM-1. CONCLUSIONS The present study showed that CoQ10 supplementation for 8 weeks had a beneficial effect on inflammatory and endothelial dysfunction markers in overweight and obese patients with PCOS.
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Affiliation(s)
- Shiva Taghizadeh
- Department of Biochemistry and Diet Therapy, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Azimeh Izadi
- Department of Biochemistry and Diet Therapy, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Shabnam Shirazi
- Department of Biochemistry and Diet Therapy, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Marziyeh Parizad
- Women's Reproductive Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Bahram Pourghassem Gargari
- Nutrition Research Center, Department of Biochemistry and Diet Therapy, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
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Mori A, Namekawa R, Sakamoto K, Ishii K, Nakahara T. Involvement of Gap Junctions in Acetylcholine-Induced Endothelium-Derived Hyperpolarization-Type Dilation of Retinal Arterioles in Rats. Biol Pharm Bull 2021; 44:1860-1865. [PMID: 34853268 DOI: 10.1248/bpb.b21-00547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
An electrical communication between the endothelial and smooth muscle cells via gap junctions, which provides the signaling pathway known as endothelium-dependent hyperpolarization (EDH), plays a crucial role in controlling the vascular tone. In this study, we investigated the role of gap junctions in the acetylcholine (ACh)-induced EDH-type dilation of rat retinal arterioles in vivo. The dilator response was evaluated by measuring the diameter of retinal arterioles. Intravitreal injection of gap junction blockers (18β-glycyrrhetinic acid and carbenoxolone) reduced the ACh-induced dilation of retinal arterioles. Moreover, the retinal arteriolar response to ACh was attenuated by 18β-glycyrrhetinic acid under treatment with a combination of NG-nitro-L-arginine methyl ester (a nitric oxide (NO) synthase inhibitor; 30 mg/kg) and indomethacin (a cyclooxygenase inhibitor; 5 mg/kg). The NO- and prostaglandin-independent, EDH-related component of ACh-induced dilation of retinal arterioles was prevented by intravitreal injection of iberiotoxin, which inhibits large-conductance Ca2+-activated K+ channels. Furthermore, the combination of 18β-glycyrrhetinic acid and iberiotoxin produced greater attenuation in the EDH-related response than that by the individual agent. Treatment with 18β-glycyrrhetinic acid revealed no significant effect on NOR3 (an NO donor)-induced retinal vasodilator response. These results suggest that gap junctions contribute to the ACh-induced, EDH-type dilation of rat retinal arterioles in vivo.
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Affiliation(s)
- Asami Mori
- Department of Molecular Pharmacology, Kitasato University School of Pharmaceutical Sciences
| | - Ryo Namekawa
- Department of Molecular Pharmacology, Kitasato University School of Pharmaceutical Sciences
| | - Kenji Sakamoto
- Department of Molecular Pharmacology, Kitasato University School of Pharmaceutical Sciences
| | - Kunio Ishii
- Department of Molecular Pharmacology, Kitasato University School of Pharmaceutical Sciences
| | - Tsutomu Nakahara
- Department of Molecular Pharmacology, Kitasato University School of Pharmaceutical Sciences
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Asgary S, Karimi R, Joshi T, Kilpatrick KL, Moradi S, Samimi Z, Mohammadi E, Farzaei MH, Bishayee A. Effect of pomegranate juice on vascular adhesion factors: A systematic review and meta-analysis. Phytomedicine 2021; 80:153359. [PMID: 33188983 DOI: 10.1016/j.phymed.2020.153359] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 09/20/2020] [Accepted: 09/28/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Cardiovascular diseases, obesity, and insulin resistance demonstrate elements of functional impairment of the endothelium. Treatment of endothelial dysfunction with natural products, such as pomegranate, can open new ways in the treatment of cardiovascular diseases. PURPOSE The present meta-analysis provides information in highlighting the role of pomegranate in endothelial dysfunction. METHODS Various databases, such as PubMed, Scopus, Web of Science, Cochrane, and Google Scholar, were searched up to July 2020 using relevant keywords. We have selected the studies that investigated the effects of pomegranate on vascular adhesion factors, including intercellular adhesion molecule 1 (ICAM-1), vascular cell adhesion molecule 1 (VCAM-1), E-selectin, and interleukin-6 (IL-6). MD with 95% CrI with 100,000 iterations by using Markov chain Monte Carlo code were used. RESULTS Pooled effect size of articles in human studies indicated that pomegranate juice was not significantly effective on ICAM-1 [MD: -0.42; CrI: (-1.01, 0.17)], VCAM-1 [MD: -0.20; CrI: (-1.95, 1.40)], and E-selectin [MD: -0.21; CrI: (-1.62, 1.21)] compared to the control group. But it can significantly reduce IL-6 [MD: -1.07; CrI: (-1.90, -0.19)]. CONCLUSION Generally, present study showed that pomegranate juice has no significant effect on vascular adhesion factors, ICAM-1, VCAM-1, and E-selectin, but can reduce IL-6 significantly. Future prospective randomized clinical trials with longer intervention duration are warranted to obtain a precise conclusion.
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Affiliation(s)
- Sedigheh Asgary
- Isfahan Cardiovascular Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan 8174673461, Iran
| | - Raheleh Karimi
- Cardiac Rehabilitation Research center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan 8174673461, Iran
| | - Tanuj Joshi
- Department of Pharmaceutical Sciences, Bhimtal, Kumaun University, Nainital - 263 002, Uttarakhand, India
| | | | - Sajjad Moradi
- Halal Research Center of Islamic republic of Iran, Food and Drug Administration, Tehran 1415845371, Iran; Nutritional Sciences Department, School of Nutritional Sciences and Food Technology, Kermanshah University of Medical Sciences, Kermanshah 6718874414, Iran
| | - Zeinab Samimi
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6718874414, Iran
| | - Elham Mohammadi
- R.R.College of Pharmacy, Bangaluru 090 560, Karnataka, India
| | - Mohammad Hosein Farzaei
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6718874414, Iran.
| | - Anupam Bishayee
- Lake Erie College of Osteopathic Medicine, Bradenton, FL 34211, United States.
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Mishra RC, Kyle BD, Kendrick DJ, Svystonyuk D, Kieser TM, Fedak PWM, Wulff H, Braun AP. KCa channel activation normalizes endothelial function in Type 2 Diabetic resistance arteries by improving intracellular Ca 2+ mobilization. Metabolism 2021; 114:154390. [PMID: 33039407 PMCID: PMC7736096 DOI: 10.1016/j.metabol.2020.154390] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 09/28/2020] [Accepted: 09/30/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Endothelial dysfunction is an early pathogenic event in the progression of cardiovascular disease in patients with Type 2 Diabetes (T2D). Endothelial KCa2.3 and KCa3.1 K+ channels are important regulators of arterial diameter, and we thus hypothesized that SKA-31, a small molecule activator of KCa2.3 and KCa3.1, would positively influence agonist-evoked dilation in myogenically active resistance arteries in T2D. METHODOLOGY Arterial pressure myography was utilized to investigate endothelium-dependent vasodilation in isolated cremaster skeletal muscle resistance arteries from 22 to 24 week old T2D Goto-Kakizaki rats, age-matched Wistar controls, and small human intra-thoracic resistance arteries from T2D subjects. Agonist stimulated changes in cytosolic free Ca2+ in acutely isolated, single endothelial cells from Wistar and T2D Goto-Kakizaki cremaster and cerebral arteries were examined using Fura-2 fluorescence imaging. MAIN FINDINGS Endothelium-dependent vasodilation in response to acetylcholine (ACh) or bradykinin (BK) was significantly impaired in isolated cremaster arteries from T2D Goto-Kakizaki rats compared with Wistar controls, and similar results were observed in human intra-thoracic arteries. In contrast, inhibition of myogenic tone by sodium nitroprusside, a direct smooth muscle relaxant, was unaltered in both rat and human T2D arteries. Treatment with a threshold concentration of SKA-31 (0.3 μM) significantly enhanced vasodilatory responses to ACh and BK in arteries from T2D Goto-Kakizaki rats and human subjects, whereas only modest effects were observed in non-diabetic arteries of both species. Mechanistically, SKA-31 enhancement of evoked dilation was independent of vascular NO synthase and COX activities. Remarkably, SKA-31 treatment improved agonist-stimulated Ca2+ elevation in acutely isolated endothelial cells from T2D Goto-Kakizaki cremaster and cerebral arteries, but not from Wistar control vessels. In contrast, SKA-31 treatment did not affect intracellular Ca2+ release by the sarco/endoplasmic reticulum Ca2+-ATPase (SERCA) inhibitor cyclopiazonic acid. CONCLUSIONS Collectively, our data demonstrate that KCa channel modulation can acutely restore endothelium-dependent vasodilatory responses in T2D resistance arteries from rats and humans, which appears to involve improved endothelial Ca2+ mobilization.
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Affiliation(s)
- Ramesh C Mishra
- Dept. of Physiology and Pharmacology, Libin Cardiovascular Institute of Alberta, University of Calgary, 3330 Hospital Drive NW, Calgary, AB T2N 4N1, Canada
| | - Barry D Kyle
- Dept. of Physiology and Pharmacology, Libin Cardiovascular Institute of Alberta, University of Calgary, 3330 Hospital Drive NW, Calgary, AB T2N 4N1, Canada
| | - Dylan J Kendrick
- Dept. of Physiology and Pharmacology, Libin Cardiovascular Institute of Alberta, University of Calgary, 3330 Hospital Drive NW, Calgary, AB T2N 4N1, Canada
| | - Daniyil Svystonyuk
- Dept. of Cardiac Sciences, Libin Cardiovascular Institute of Alberta, University of Calgary, 3330 Hospital Drive NW, Calgary, AB T2N 4N1, Canada
| | - Teresa M Kieser
- Dept. of Cardiac Sciences, Libin Cardiovascular Institute of Alberta, University of Calgary, 3330 Hospital Drive NW, Calgary, AB T2N 4N1, Canada
| | - Paul W M Fedak
- Dept. of Cardiac Sciences, Libin Cardiovascular Institute of Alberta, University of Calgary, 3330 Hospital Drive NW, Calgary, AB T2N 4N1, Canada
| | - Heike Wulff
- Dept of Pharmacology, University of California Davis, 451 Health Sciences Drive, Davis, CA 95616, USA
| | - Andrew P Braun
- Dept. of Physiology and Pharmacology, Libin Cardiovascular Institute of Alberta, University of Calgary, 3330 Hospital Drive NW, Calgary, AB T2N 4N1, Canada.
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Wang B, Zhang M, Urabe G, Shirasu T, Guo LW, Kent KC. PERK Inhibition Promotes Post-angioplasty Re-endothelialization via Modulating SMC Phenotype Changes. J Surg Res 2021; 257:294-305. [PMID: 32871430 PMCID: PMC11034999 DOI: 10.1016/j.jss.2020.05.070] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 04/19/2020] [Accepted: 05/06/2020] [Indexed: 12/18/2022]
Abstract
BACKGROUND Drug-eluting stents impair post-angioplasty re-endothelialization thus compromising restenosis prevention while heightening thrombotic risks. We recently found that inhibition of protein kinase RNA-like endoplasmic reticulum kinase (PERK) effectively mitigated both restenosis and thrombosis in rodent models. This motivated us to determine how PERK inhibition impacts re-endothelialization. METHODS Re-endothelialization was evaluated in endothelial-denuded rat carotid arteries after balloon angioplasty and periadventitial administration of PERK inhibitor in a hydrogel. To study whether PERK in smooth muscle cells (SMCs) regulates re-endothelialization by paracrinally influencing endothelial cells (ECs), denuded arteries exposing SMCs were lentiviral-infected to silence PERK; in vitro, the extracellular vesicles isolated from the medium of PDGF-activated, PERK-upregulating human primary SMCs were transferred to human primary ECs. RESULTS Treatment with PERK inhibitor versus vehicle control accelerated re-endothelialization in denuded arteries. PERK-specific silencing in the denuded arterial wall (mainly SMCs) also enhanced re-endothelialization compared to scrambled shRNA control. In vitro, while medium transfer from PDGF-activated SMCs impaired EC viability and increased the mRNA levels of dysfunctional EC markers, either PERK inhibition or silencing in donor SMCs mitigated these EC changes. Furthermore, CXCL10, a paracrine cytokine detrimental to ECs, was increased by PDGF activation and decreased after PERK inhibition or silencing in SMCs. CONCLUSIONS Attenuating PERK activity pharmacologically or genetically provides an approach to accelerating post-angioplasty re-endothelialization in rats. The mechanism may involve paracrine factors regulated by PERK in SMCs that impact neighboring ECs. This study rationalizes future development of PERK-targeted endothelium-friendly vascular interventions.
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MESH Headings
- Angioplasty, Balloon/adverse effects
- Angioplasty, Balloon/instrumentation
- Animals
- Carotid Arteries/drug effects
- Carotid Arteries/pathology
- Carotid Arteries/surgery
- Coronary Restenosis/etiology
- Coronary Restenosis/prevention & control
- Disease Models, Animal
- Drug-Eluting Stents/adverse effects
- Endothelial Cells/drug effects
- Endothelial Cells/pathology
- Endothelium, Vascular/cytology
- Endothelium, Vascular/drug effects
- Endothelium, Vascular/pathology
- Humans
- Male
- Muscle, Smooth, Vascular/cytology
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/pathology
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/pathology
- Paracrine Communication/drug effects
- Paracrine Communication/genetics
- Protein Kinase Inhibitors/administration & dosage
- RNA, Small Interfering/metabolism
- Rats
- Re-Epithelialization/drug effects
- Re-Epithelialization/genetics
- eIF-2 Kinase/antagonists & inhibitors
- eIF-2 Kinase/genetics
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Affiliation(s)
- Bowen Wang
- Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio; Department of Surgery, College of Medicine, The Ohio State University, Columbus, Ohio; Department of Surgery, School of Medicine, University of Virginia, Charlottesville, Virginia
| | - Mengxue Zhang
- Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio; Department of Surgery, College of Medicine, The Ohio State University, Columbus, Ohio; Cellular and Molecular Pathology Graduate Program, Department of Pathology, University of Wisconsin-Madison, Madison, Wisconsin
| | - Go Urabe
- Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio; Department of Surgery, College of Medicine, The Ohio State University, Columbus, Ohio
| | - Takuro Shirasu
- Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio; Department of Surgery, College of Medicine, The Ohio State University, Columbus, Ohio; Department of Surgery, School of Medicine, University of Virginia, Charlottesville, Virginia; Department of Physiology & Cell Biology, College of Medicine, The Ohio State University, Columbus, Ohio
| | - Lian-Wang Guo
- Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio; Department of Surgery, College of Medicine, The Ohio State University, Columbus, Ohio; Department of Surgery, School of Medicine, University of Virginia, Charlottesville, Virginia; Department of Physiology & Cell Biology, College of Medicine, The Ohio State University, Columbus, Ohio.
| | - K Craig Kent
- Department of Surgery, College of Medicine, The Ohio State University, Columbus, Ohio; Department of Surgery, School of Medicine, University of Virginia, Charlottesville, Virginia.
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Lee YJ, Han BH, Yoon JJ, Kim HY, Ahn YM, Hong MH, Son CO, Kang DG, Lee HS. Identification of securinine as vascular protective agent targeting atherosclerosis in vascular endothelial cells, smooth muscle cells, and apolipoprotein E deficient mice. Phytomedicine 2021; 81:153430. [PMID: 33341451 DOI: 10.1016/j.phymed.2020.153430] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 10/28/2020] [Accepted: 11/27/2020] [Indexed: 06/12/2023]
Abstract
BACKGROUND Atherosclerosis is a chronic vascular disease and characterized by accumulation within the intima of inflammatory cells, smooth muscle cells, lipid, and connective tissue. PURPOSE The purpose of the present study was to identify natural agents that commonly reverse advanced atherosclerotic plaque to early atherosclerotic plaque. METHODS Differentially expressed genes (DEGs) were analyzed in silico. The differentially expressed genes from 9 intimal thickening and 8 fibrous cap atheroma tissue which were collected from GEO data were assessed by the connectivity map. Natural candidate securinine, a main compound from Securinega suffruticosa, was selected and administrated 1, 5 mg/kg/day in apolipoprotein-E-deficient (ApoE KO) mice for 18 weeks. RESULTS Securinine significantly showed lowered blood pressure and improvement of metabolic parameters with hyperlipidemia. The impairment in vasorelaxation was remarkably decreased by treatment with securinine. H&E staining revealed that treatment with securinine reduced atherosclerotic lesions. Securinine suppressed the expression of adhesion molecules and matrix metalloproteinase-2/-9 in both ApoE KO and vascular endothelial cells (HUVEC). In HUVEC pretreatment with securinine significantly inhibited ROS generation and NF-κB activation. Growth curve assays using the real-time cell analyzer showed that securinine significantly decreased TNF-α-induced aortic smooth muscle cell proliferation and migration in a dose-dependent manner. CONCLUSION Securinine may be a potential natural candidate for the treatment of atherosclerosis because it attenuates vascular inflammation and dysfunction as well as vascular lesion.
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MESH Headings
- Animals
- Aorta/drug effects
- Aorta/pathology
- Atherosclerosis/drug therapy
- Atherosclerosis/metabolism
- Azepines/pharmacology
- Endothelial Cells/drug effects
- Endothelium, Vascular/drug effects
- Endothelium, Vascular/physiopathology
- Gene Expression Regulation/drug effects
- Heterocyclic Compounds, Bridged-Ring/pharmacology
- Human Umbilical Vein Endothelial Cells
- Humans
- Lactones/pharmacology
- Male
- Mice, Inbred C57BL
- Mice, Knockout
- Mice, Knockout, ApoE
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/pathology
- NF-kappa B/metabolism
- Piperidines/pharmacology
- Plaque, Atherosclerotic/drug therapy
- Plaque, Atherosclerotic/metabolism
- Protective Agents/pharmacology
- Vasodilation/drug effects
- Mice
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Affiliation(s)
- Yun Jung Lee
- Hanbang Cardio-Renal Syndrome Research Center, Wonkwang University, 460, Iksan-daero, Iksan, Jeonbuk 54538, Republic of Korea; College of Korean Medicine and Professional Graduate School of Korean Medicine, Wonkwang University, 460, Iksan-daero, Iksan, Jeonbuk 54538, Republic of Korea
| | - Byung Hyuk Han
- Hanbang Cardio-Renal Syndrome Research Center, Wonkwang University, 460, Iksan-daero, Iksan, Jeonbuk 54538, Republic of Korea; College of Korean Medicine and Professional Graduate School of Korean Medicine, Wonkwang University, 460, Iksan-daero, Iksan, Jeonbuk 54538, Republic of Korea
| | - Jung Joo Yoon
- Hanbang Cardio-Renal Syndrome Research Center, Wonkwang University, 460, Iksan-daero, Iksan, Jeonbuk 54538, Republic of Korea; College of Korean Medicine and Professional Graduate School of Korean Medicine, Wonkwang University, 460, Iksan-daero, Iksan, Jeonbuk 54538, Republic of Korea
| | - Hye Yoom Kim
- Hanbang Cardio-Renal Syndrome Research Center, Wonkwang University, 460, Iksan-daero, Iksan, Jeonbuk 54538, Republic of Korea; College of Korean Medicine and Professional Graduate School of Korean Medicine, Wonkwang University, 460, Iksan-daero, Iksan, Jeonbuk 54538, Republic of Korea
| | - You Mee Ahn
- Clinical Medicine Research Division, Korea Institute of Oriental Medicine, 1672 Yuseong-daero, Yuseong-gu, Daejeon 34504, Republic of Korea
| | - Mi Hyeon Hong
- Hanbang Cardio-Renal Syndrome Research Center, Wonkwang University, 460, Iksan-daero, Iksan, Jeonbuk 54538, Republic of Korea; College of Korean Medicine and Professional Graduate School of Korean Medicine, Wonkwang University, 460, Iksan-daero, Iksan, Jeonbuk 54538, Republic of Korea
| | - Chan Ok Son
- Hanbang Cardio-Renal Syndrome Research Center, Wonkwang University, 460, Iksan-daero, Iksan, Jeonbuk 54538, Republic of Korea; College of Korean Medicine and Professional Graduate School of Korean Medicine, Wonkwang University, 460, Iksan-daero, Iksan, Jeonbuk 54538, Republic of Korea
| | - Dae Gill Kang
- Hanbang Cardio-Renal Syndrome Research Center, Wonkwang University, 460, Iksan-daero, Iksan, Jeonbuk 54538, Republic of Korea; College of Korean Medicine and Professional Graduate School of Korean Medicine, Wonkwang University, 460, Iksan-daero, Iksan, Jeonbuk 54538, Republic of Korea.
| | - Ho Sub Lee
- Hanbang Cardio-Renal Syndrome Research Center, Wonkwang University, 460, Iksan-daero, Iksan, Jeonbuk 54538, Republic of Korea; College of Korean Medicine and Professional Graduate School of Korean Medicine, Wonkwang University, 460, Iksan-daero, Iksan, Jeonbuk 54538, Republic of Korea.
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Tubsakul A, Sangartit W, Pakdeechote P, Kukongviriyapan V, Apaijit K, Kukongviriyapan U. Curcumin Mitigates Hypertension, Endothelial Dysfunction and Oxidative Stress in Rats with Chronic Exposure to Lead and Cadmium. TOHOKU J EXP MED 2021; 253:69-76. [PMID: 33473064 DOI: 10.1620/tjem.253.69] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Lead (Pb) and cadmium (Cd) are environmental pollutants and nonessential elements in the body. Both metals induce the development of hypertension which is associated with oxidative stress. Curcumin (CUR) is a polyphenolic compound with strong antioxidant activity. The present study evaluated the effect of CUR on oxidative stress, alteration of vascular responsiveness and hypertension induced by exposure to either Pb, Cd or the combination of Pb and Cd. Male Sprague-Dawley rats were exposed to low level of lead acetate (100 mg/L) and/or cadmium chloride (10 mg/L) in the drinking water for 16 weeks. The control animals received deionized water as drinking water. CUR (100 mg/kg) or propylene glycol as vehicle was intragastrically administered once daily for the last 4 weeks. Exposure to Pb, Cd or the combination induced increases in blood pressure and peripheral vascular resistance, and decreased the blood pressure response to intravenous infusion to acetylcholine. Supplementation with CUR significantly reduced blood pressure, alleviated oxidative stress, and increased plasma nitrate/nitrite and glutathione in the blood. The effects of CUR were associated with the improvement of vascular responsiveness, upregulation of the endothelial nitric oxide synthase and downregulation of the NADPH oxidase expression. Furthermore, CUR reduced the metal levels in blood, aorta, liver and kidney. Altogether, exposure to the combination of Pb and Cd aggravated hypertension and oxidative stress, and CUR effectively ameliorated these adverse events in metal exposed animals. Data indicate that CUR may be useful as a dietary supplement for protection against the noxious effects of the heavy metals.
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130
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Bjørnholm KD, Skovsted GF, Mitgaard-Thomsen A, Rakipovski G, Tveden-Nyborg P, Lykkesfeldt J, Povlsen GK. Liraglutide treatment improves endothelial function in the Ldlr-/- mouse model of atherosclerosis and affects genes involved in vascular remodelling and inflammation. Basic Clin Pharmacol Toxicol 2021; 128:103-114. [PMID: 32896073 DOI: 10.1111/bcpt.13486] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 08/12/2020] [Accepted: 08/31/2020] [Indexed: 12/29/2022]
Abstract
Recent clinical intervention studies have shown that the GLP1 analogue liraglutide lowers cardiovascular risk, but the underlying mechanism has not yet been fully elucidated. This study investigated the effects of liraglutide on endothelial function in the Ldlr-/- mouse model. Mice (n = 12/group) were fed Western diet (WD) or chow for 12 weeks followed by 4 weeks of treatment with liraglutide (1 mg/kg/day) or vehicle subcutaneously. Weight loss, blood lipid content, plaque burden, vasomotor function of the aorta and gene expression pattern in aorta and brachiocephalic artery were monitored. Liraglutide treatment significantly induced weight loss (P < .0001), decreased blood triglycerides (P < .0001) and total cholesterol (P < .0001) in WD-fed mice but did not decrease plaque burden. Liraglutide also improved endothelium-mediated dilation of the distal thoracis aorta (P = .0067), but it did not affect phenylephrine or sodium nitroprusside responses. Fluidigm analyses of 96 genes showed significantly altered expression of seven genes related to inflammation, vascular smooth muscle cells and extracellular matrix composition in liraglutide-treated animals. We conclude that treatment with liraglutide decreased endothelial dysfunction and that this could be linked to decreased inflammation or regulation of vascular remodelling.
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MESH Headings
- Animals
- Anti-Inflammatory Agents/pharmacology
- Aorta, Thoracic/drug effects
- Aorta, Thoracic/metabolism
- Aorta, Thoracic/pathology
- Aorta, Thoracic/physiopathology
- Atherosclerosis/drug therapy
- Atherosclerosis/metabolism
- Atherosclerosis/pathology
- Atherosclerosis/physiopathology
- Disease Models, Animal
- Endothelial Cells/drug effects
- Endothelial Cells/metabolism
- Endothelial Cells/pathology
- Endothelium, Vascular/drug effects
- Endothelium, Vascular/metabolism
- Endothelium, Vascular/pathology
- Endothelium, Vascular/physiopathology
- Gene Expression Regulation
- Inflammation/metabolism
- Inflammation/pathology
- Inflammation/physiopathology
- Inflammation/prevention & control
- Liraglutide/pharmacology
- Male
- Mice, Knockout
- Plaque, Atherosclerotic
- Receptors, LDL/genetics
- Receptors, LDL/metabolism
- Signal Transduction
- Vascular Remodeling/drug effects
- Vasodilation/drug effects
- Mice
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Affiliation(s)
- Katrine Dahl Bjørnholm
- Department of Experimental Animal Models, University of Copenhagen, Frederiksberg, Denmark
- Department of Cardiovascular Disease Research, Novo Nordisk, Måløv, Denmark
| | - Gry Freja Skovsted
- Department of Experimental Animal Models, University of Copenhagen, Frederiksberg, Denmark
| | | | - Günaj Rakipovski
- Department of Cardiovascular Disease Research, Novo Nordisk, Måløv, Denmark
| | - Pernille Tveden-Nyborg
- Department of Experimental Animal Models, University of Copenhagen, Frederiksberg, Denmark
| | - Jens Lykkesfeldt
- Department of Experimental Animal Models, University of Copenhagen, Frederiksberg, Denmark
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Restini CBA, Fink GD, Watts SW. Vascular reactivity stimulated by TMA and TMAO: Are perivascular adipose tissue and endothelium involved? Pharmacol Res 2021; 163:105273. [PMID: 33197599 PMCID: PMC7855790 DOI: 10.1016/j.phrs.2020.105273] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 10/23/2020] [Accepted: 10/27/2020] [Indexed: 12/17/2022]
Abstract
Trimethylamine (TMA), formed by intestinal microbiota, and its Flavin-Monooxygenase 3 (FMO3) product Trimethylamine-N-Oxide (TMAO), are potential modulators of host cardiometabolic phenotypes. High circulating levels of TMAO are associated with increased risk for cardiovascular diseases. We hypothesized that TMA/TMAO could directly change the vascular tone. Perivascular adipose tissue (PVAT) helps to regulate vascular homeostasis and may also possess FMO3. Thoracic aorta with(+) or without(-) PVAT, also + or - the endothelium (E), of male Sprague Dawley rats were isolated for measurement of isometric tone in response to TMA/TMAO (1nM-0.5 M). Immunohistochemistry (IHC) studies were done to identify the presence of FMO3. TMA and TMAO elicited concentration-dependent arterial contraction. However, at a maximally achievable concentration (0.2 M), contraction stimulated by TMA was of a greater magnitude (141.5 ± 16% of maximum phenylephrine contraction) than that elicited by TMAO (19.1 ± 4.03%) with PVAT and endothelium intact. When PVAT was preserved, TMAO-induced contraction was extensively reduced the presence (19.1 ± 4.03%) versus absence of E (147.2 ± 20.5%), indicating that the endothelium plays a protective role against TMAO-induced contraction. FMO3 enzyme was present in aortic PVAT, but the FMO3 inhibitor methimazole did not affect contraction stimulated by TMA in aorta + PVAT. However, the l-type calcium channel blocker nifedipine reduced TMA-induced contraction by ∼50% compared to the vehicle. Though a high concentration of these compounds was needed to achieve contraction, the findings that TMA-induced contraction was independent of PVAT and E and mediated by nifedipine-sensitive calcium channels suggest metabolite-induced contraction may be physiologically important.
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Affiliation(s)
- Carolina Baraldi A Restini
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI 48824, United States; College of Osteopathic Medicine, Michigan State University, 44575 Garfield Road, Building UC4, Clinton Township, MI, 48038, United States.
| | - Gregory D Fink
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI 48824, United States
| | - Stephanie W Watts
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI 48824, United States
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Iba T, Levy JH, Aihara K, Kadota K, Tanaka H, Sato K, Nagaoka I. Newly Developed Recombinant Antithrombin Protects the Endothelial Glycocalyx in an Endotoxin-Induced Rat Model of Sepsis. Int J Mol Sci 2020; 22:ijms22010176. [PMID: 33375342 PMCID: PMC7795760 DOI: 10.3390/ijms22010176] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 12/15/2020] [Accepted: 12/23/2020] [Indexed: 01/07/2023] Open
Abstract
(1) Background: The endothelial glycocalyx is a primary target during the early phase of sepsis. We previously reported a newly developed recombinant non-fucosylated antithrombin has protective effects in vitro. We further evaluated the effects of this recombinant antithrombin on the glycocalyx damage in an animal model of sepsis. (2) Methods: Following endotoxin injection, in Wistar rats, circulating levels of hyaluronan, syndecan-1 and other biomarkers were evaluated in low-dose or high-dose recombinant antithrombin-treated animals and a control group (n = 7 per group). Leukocyte adhesion and blood flow were evaluated with intravital microscopy. The glycocalyx was also examined using side-stream dark-field imaging. (3) Results: The activation of coagulation was inhibited by recombinant antithrombin, leukocyte adhesion was significantly decreased, and flow was better maintained in the high-dose group (both p < 0.05). Circulating levels of syndecan-1 (p < 0.01, high-dose group) and hyaluronan (p < 0.05, low-dose group; p < 0.01, high-dose group) were significantly reduced by recombinant antithrombin treatment. Increases in lactate and decreases in albumin levels were significantly attenuated in the high-dose group (p < 0.05, respectively). The glycocalyx thickness was reduced over time in control animals, but the derangement was attenuated and microvascular perfusion was better maintained in the high-dose group recombinant antithrombin group (p < 0.05). (4) Conclusions: Recombinant antithrombin maintained vascular integrity and the microcirculation by preserving the glycocalyx in this sepsis model, effects that were more prominent with high-dose therapy.
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Affiliation(s)
- Toshiaki Iba
- Department of Emergency and Disaster Medicine, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan; (K.A.); (K.K.)
- Correspondence: ; Tel.: +81-3-3813-3111; Fax: +81-3-3813-5431
| | - Jerrold H. Levy
- Department of Anesthesiology and Critical Care, Duke University School of Medicine, Durham, NC 27710, USA;
| | - Koichiro Aihara
- Department of Emergency and Disaster Medicine, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan; (K.A.); (K.K.)
| | - Katsuhiko Kadota
- Department of Emergency and Disaster Medicine, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan; (K.A.); (K.K.)
| | - Hiroshi Tanaka
- Department of Emergency and Critical Care Medicine, Juntendo University Graduate School of Medicine Urayasu Hospital, Chiba 279-0021, Japan;
| | - Koichi Sato
- Department of Surgery, Juntendo Shizuoka Hospital, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan;
| | - Isao Nagaoka
- Department of Host Defense and Biochemical Research, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan;
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Corum DG, Jenkins DP, Heslop JA, Tallent LM, Beeson GC, Barth JL, Schnellmann RG, Muise-Helmericks RC. PDE5 inhibition rescues mitochondrial dysfunction and angiogenic responses induced by Akt3 inhibition by promotion of PRC expression. J Biol Chem 2020; 295:18091-18104. [PMID: 33087445 PMCID: PMC7939459 DOI: 10.1074/jbc.ra120.013716] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 10/15/2020] [Indexed: 12/01/2022] Open
Abstract
Akt3 regulates mitochondrial content in endothelial cells through the inhibition of PGC-1α nuclear localization and is also required for angiogenesis. However, whether there is a direct link between mitochondrial function and angiogenesis is unknown. Here we show that Akt3 depletion in primary endothelial cells results in decreased uncoupled oxygen consumption, increased fission, decreased membrane potential, and increased expression of the mitochondria-specific protein chaperones, HSP60 and HSP10, suggesting that Akt3 is required for mitochondrial homeostasis. Direct inhibition of mitochondrial homeostasis by the model oxidant paraquat results in decreased angiogenesis, showing a direct link between angiogenesis and mitochondrial function. Next, in exploring functional links to PGC-1α, the master regulator of mitochondrial biogenesis, we searched for compounds that induce this process. We found that, sildenafil, a phosphodiesterase 5 inhibitor, induced mitochondrial biogenesis as measured by increased uncoupled oxygen consumption, mitochondrial DNA content, and voltage-dependent anion channel protein expression. Sildenafil rescued the effects on mitochondria by Akt3 depletion or pharmacological inhibition and promoted angiogenesis, further supporting that mitochondrial homeostasis is required for angiogenesis. Sildenafil also induces the expression of PGC-1 family member PRC and can compensate for PGC-1α activity during mitochondrial stress by an Akt3-independent mechanism. The induction of PRC by sildenafil depends upon cAMP and the transcription factor CREB. Thus, PRC can functionally substitute during Akt3 depletion for absent PGC-1α activity to restore mitochondrial homeostasis and promote angiogenesis. These findings show that mitochondrial homeostasis as controlled by the PGC family of transcriptional activators is required for angiogenic responses.
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Affiliation(s)
- Daniel G Corum
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, South Carolina
| | - Dorea P Jenkins
- Department of Pathology, Medical University of South Carolina, Charleston, South Carolina
| | - James A Heslop
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, South Carolina
| | - Lacey M Tallent
- Department of Bioengineering, Duke University, Durham, North Carolina
| | - Gyda C Beeson
- Department of Drug Discovery, Medical University of South Carolina, Charleston, South Carolina
| | - Jeremy L Barth
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, South Carolina
| | | | - Robin C Muise-Helmericks
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, South Carolina.
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Daci A, Da Dalt L, Alaj R, Shurdhiqi S, Neziri B, Ferizi R, Danilo Norata G, Krasniqi S. Rivaroxaban improves vascular response in LPS-induced acute inflammation in experimental models. PLoS One 2020; 15:e0240669. [PMID: 33301454 PMCID: PMC7728205 DOI: 10.1371/journal.pone.0240669] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Accepted: 09/30/2020] [Indexed: 12/18/2022] Open
Abstract
Rivaroxaban (RVX) was suggested to possess anti-inflammatory and vascular tone modulatory effects. The goal of this study was to investigate whether RVX impacts lipopolysaccharide (LPS)-induced acute vascular inflammatory response. Male rats were treated with 5 mg/kg RVX (oral gavage) followed by 10 mg/kg LPS i.p injection. Circulating levels of IL-6, MCP-1, VCAM-1, and ICAM-1 were measured in plasma 6 and 24 hours after LPS injection, while isolated aorta was used for gene expression analysis, immunohistochemistry, and vascular tone evaluation. RVX pre-treatment significantly reduced LPS mediated increase after 6h and 24h for IL-6 (4.4±2.2 and 2.8±1.7 fold), MCP-1 (1.4±1.5 and 1.3±1.4 fold) VCAM-1 (1.8±2.0 and 1.7±2.1 fold). A similar trend was observed in the aorta for iNOS (5.5±3.3 and 3.3±1.9 folds reduction, P<0.01 and P<0.001, respectively), VCAM-1 (1.3±1.2 and 1.4±1.3 fold reduction, P<0.05), and MCP-1 (3.9±2.2 and 1.9±1.6 fold reduction, P<0.01). Moreover, RVX pre-treatment, improved LPS-induced PE contractile dysfunction in aortic rings (Control vs LPS, Emax reduction = 35.4 and 31.19%, P<0.001; Control vs LPS+RVX, Emax reduction = 10.83 and 11.48%, P>0.05, respectively), resulting in 24.5% and 19.7% change in maximal constriction in LPS and LPS+RVX respectively. These data indicate that RVX pre-treatment attenuates LPS-induced acute vascular inflammation and contractile dysfunction.
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Affiliation(s)
- Armond Daci
- Department of Pharmacy, Faculty of Medicine, University of Prishtina, Prishtina, Kosovo
- Institute of Pharmacology and Toxicology, Faculty of Medicine, University of Prishtina, Prishtina, Kosovo
| | - Lorenzo Da Dalt
- Department of Excellence of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - Rame Alaj
- Cardiovascular Surgery Clinic, University Clinical Center of Kosovo, Prishtina, Kosovo
| | - Shpejtim Shurdhiqi
- Cardiovascular Surgery Clinic, University Clinical Center of Kosovo, Prishtina, Kosovo
| | - Burim Neziri
- Institute of Pathophysiology, Faculty of Medicine, University of Prishtina, Prishtina, Kosovo
| | - Rrahman Ferizi
- Department of Premedical Courses-Biology, Faculty of Medicine, University of Prishtina, Prishtina, Kosovo
| | - Giuseppe Danilo Norata
- Department of Excellence of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
- Centro SISA per lo Studio dell’Aterosclerosi, Ospedale Bassini, Cinisello Balsamo, Italy
| | - Shaip Krasniqi
- Institute of Pharmacology and Toxicology, Faculty of Medicine, University of Prishtina, Prishtina, Kosovo
- * E-mail:
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Liang S, Zhang J, Ning R, Du Z, Liu J, Batibawa JW, Duan J, Sun Z. The critical role of endothelial function in fine particulate matter-induced atherosclerosis. Part Fibre Toxicol 2020; 17:61. [PMID: 33276797 PMCID: PMC7716453 DOI: 10.1186/s12989-020-00391-x] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Accepted: 11/17/2020] [Indexed: 12/21/2022] Open
Abstract
Ambient and indoor air pollution contributes annually to approximately seven million premature deaths. Air pollution is a complex mixture of gaseous and particulate materials. In particular, fine particulate matter (PM2.5) plays a major mortality risk factor particularly on cardiovascular diseases through mechanisms of atherosclerosis, thrombosis and inflammation. A review on the PM2.5-induced atherosclerosis is needed to better understand the involved mechanisms. In this review, we summarized epidemiology and animal studies of PM2.5-induced atherosclerosis. Vascular endothelial injury is a critical early predictor of atherosclerosis. The evidence of mechanisms of PM2.5-induced atherosclerosis supports effects on vascular function. Thus, we summarized the main mechanisms of PM2.5-triggered vascular endothelial injury, which mainly involved three aspects, including vascular endothelial permeability, vasomotor function and vascular reparative capacity. Then we reviewed the relationship between PM2.5-induced endothelial injury and atherosclerosis. PM2.5-induced endothelial injury associated with inflammation, pro-coagulation and lipid deposition. Although the evidence of PM2.5-induced atherosclerosis is undergoing continual refinement, the mechanisms of PM2.5-triggered atherosclerosis are still limited, especially indoor PM2.5. Subsequent efforts of researchers are needed to improve the understanding of PM2.5 and atherosclerosis. Preventing or avoiding PM2.5-induced endothelial damage may greatly reduce the occurrence and development of atherosclerosis.
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Affiliation(s)
- Shuang Liang
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069 People’s Republic of China
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069 People’s Republic of China
| | - Jingyi Zhang
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069 People’s Republic of China
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069 People’s Republic of China
| | - Ruihong Ning
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069 People’s Republic of China
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069 People’s Republic of China
| | - Zhou Du
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069 People’s Republic of China
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069 People’s Republic of China
| | - Jiangyan Liu
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069 People’s Republic of China
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069 People’s Republic of China
| | - Joe Werelagi Batibawa
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069 People’s Republic of China
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069 People’s Republic of China
| | - Junchao Duan
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069 People’s Republic of China
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069 People’s Republic of China
| | - Zhiwei Sun
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069 People’s Republic of China
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069 People’s Republic of China
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Kirshenbaum M, Haas J, Nahum R, Aizer A, Yinon Y, Orvieto R. The Effect of Ovarian Stimulation on Endothelial Function-A Prospective Cohort Study using Peripheral Artery Tonometry. J Clin Endocrinol Metab 2020; 105:5910711. [PMID: 32968793 DOI: 10.1210/clinem/dgaa681] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Accepted: 09/19/2020] [Indexed: 11/19/2022]
Abstract
CONTEXT Gonadotropin-releasing hormone agonist (GnRH-a) serves as an alternative to human chorionic gonadotropin (hCG) to trigger final oocyte maturation, while it significantly reduces the risk of ovarian hyperstimulation syndrome (OHSS), probably by attenuating vascular/endothelial activation. OBJECTIVES The objectives of this work are to compare the effect of different modes of final follicular maturation (hCG vs GnRH-a) following ovarian stimulation (OS) for in vitro fertilization (IVF) on endothelial function. DESIGN AND SETTING A prospective cohort study was conducted at a tertiary medical center. PARTICIPANTS Patients age 37 years or younger, undergoing OS for IVF, were allocated into 2 groups according to the type of final follicle maturation: the hCG group (n = 7) or the GnRH-a group (n = 8). INTERVENTION Endothelial function was assessed by measurement of the peripheral arterial tonometry in reaction to temporary ischemia at 3 study points: day 3 of menstrual cycle (day 0), day of hCG/GnRH-a administration (day trigger) and day of oocyte pick-up (day OPU). The ratio of arterial tonometry readings before and after ischemia is called the reactive hyperemia index (RHI). Decreased RHI (< 1.67) indicates endothelial dysfunction. MAIN OUTCOME MEASURES The main outcomes measures of this study included endothelial function at 3 study points during OS with different modes of triggering final follicular maturation. RESULTS The mean RHI values at day 0 were within the normal range for all patients and comparable between both groups (hCG: 1.7 ± 0.3 vs GnRH-a: 1.79 ± 0.4, P = .6). All patients presented a decrease in RHI values on day trigger, which did not differ between the 2 groups (1.62 ± 0.3 vs 1.4 ± 0.2, respectively, P = .2). However, the hCG group demonstrated a further decrease in RHI on day OPU, whereas patients who received GnRH-a had restored normal endothelial function reflected by increased RHI values (1.4 ± 0.2 vs 1.75 ± 0.2, respectively, P = .03). CONCLUSIONS Triggering final follicular maturation with GnRH-a restored normal endothelial function, whereas hCG trigger resulted in a decrease in endothelial function.
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Affiliation(s)
- Michal Kirshenbaum
- Department of Obstetrics and Gynecology, Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel
- Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Jigal Haas
- Department of Obstetrics and Gynecology, Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel
- Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ravit Nahum
- Department of Obstetrics and Gynecology, Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel
- Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Adva Aizer
- Department of Obstetrics and Gynecology, Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel
- Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Yoav Yinon
- Department of Obstetrics and Gynecology, Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel
- Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Raoul Orvieto
- Department of Obstetrics and Gynecology, Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel
- Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
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Luo R, Li L, Liu X, Yuan Y, Zhu W, Li L, Liu J, Lu Y, Cheng J, Chen Y. Mesenchymal stem cells alleviate palmitic acid-induced endothelial-to-mesenchymal transition by suppressing endoplasmic reticulum stress. Am J Physiol Endocrinol Metab 2020; 319:E961-E980. [PMID: 33044844 DOI: 10.1152/ajpendo.00155.2020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
High levels of plasma free fatty acids (FFAs) lead to endothelial dysfunction (ED), which is involved in the pathogenesis of metabolic syndrome, diabetes, and atherosclerosis. Endoplasmic reticulum (ER) stress and endothelial-to-mesenchymal transition (EndMT) are demonstrated to be mechanistically related to endothelial dysfunction. Mesenchymal stem cells (MSCs) have exhibited an extraordinary cytoprotective effect on cellular lipotoxicity and vasculopathy. However, the underlying mechanisms have not been clearly defined. In the present study, we investigated whether MSCs could ameliorate palmitic acid (PA)-induced endothelial lipotoxicity by reducing ER stress and EndMT. We observed that MSC cocultures substantially alleviated PA-induced lipotoxicity in human umbilical vein endothelial cells (HUVECs). MSCs were able to restore the cell viability, increase tubule formation and migration ability, and decrease inflammation response and lipid deposition. Furthermore, PA caused endothelial-to-mesenchymal transition in HUVECs, which was abrogated by MSCs possibly through inhibiting ER stress. In addition, PA stimulated MSCs to secrete more stanniocalcin-1 (STC-1). Knocking down of STC-1 in MSCs attenuated their effects on PA-induced lipotoxicity in HUVECs. In vivo, MSC transplantation alleviated dyslipidemia and endothelial dysfunction in high-fat diet-fed Sprague-Dawley rats. MSC-treated rats showed reduced expressions of ER stress-related genes in aortas and suppressed expressions of EndMT-related proteins in rat aortic endothelial cells. Overall, our findings indicated that MSCs were able to attenuate endothelial lipotoxicity through inhibiting ER stress and EndMT, in which STC-1 secreted from MSCs may play a critical role.
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Affiliation(s)
- Ruixi Luo
- Key Laboratory of Transplant Engineering and Immunology, NHFPC, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
- Department of Immunology and Microbiology, Stem Cell Therapy Research Center, Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Linzhao Li
- Key Laboratory of Transplant Engineering and Immunology, NHFPC, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaohong Liu
- Key Laboratory of Transplant Engineering and Immunology, NHFPC, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
| | - Yujia Yuan
- Key Laboratory of Transplant Engineering and Immunology, NHFPC, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
| | - Wuzheng Zhu
- Key Laboratory of Transplant Engineering and Immunology, NHFPC, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
| | - Lan Li
- Key Laboratory of Transplant Engineering and Immunology, NHFPC, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
| | - Jingping Liu
- Key Laboratory of Transplant Engineering and Immunology, NHFPC, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
| | - Yanrong Lu
- Key Laboratory of Transplant Engineering and Immunology, NHFPC, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
| | - Jingqiu Cheng
- Key Laboratory of Transplant Engineering and Immunology, NHFPC, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
| | - Younan Chen
- Key Laboratory of Transplant Engineering and Immunology, NHFPC, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
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Zhang B, Hu X, Wang H, Wang R, Sun Z, Tan X, Liu S, Wang H. Effects of a dammarane-type saponin, ginsenoside Rd, in nicotine-induced vascular endothelial injury. Phytomedicine 2020; 79:153325. [PMID: 32920289 DOI: 10.1016/j.phymed.2020.153325] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 07/09/2020] [Accepted: 08/13/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Panax notoginseng (Burk.) F.H. Chen is a traditional medicinal plant widely used to prevent and treat cardiovascular diseases. Ginsenoside Rd (GRd) is a major bioactive component of P. notoginseng, but specific effects on cardiovascular disease-related pathogenic processes are rarely studied, especially vascular endothelial injury. PURPOSE This study investigated the potential protective efficacy of GRd against nicotine-induced vascular endothelial cell injury, disruption of vascular nitric oxide (NO) signaling, aberrant endothelium-monocyte adhesion, platelet aggregation, and vasoconstriction. STUDY DESIGN/METHODS Vascular endothelial injury and functional disruption were investigated in cultured human umbilical vein endothelial cells (HUVECs) by biochemical assays for nitric oxide (NO) and angiotensin II (Ang II), immunofluorescence (IF) and western blotting for expression analyses of apoptosis- related proteins, endothelial nitric oxide synthase (eNOS), inducible nitric oxide synthase (iNOS), Ang II type receptor 1 (AGTR1), toll-like receptor 4 (TLR4), myeloid differentiation factor 88 (MyD88), and nuclear factor-kappa B (NF-κB). In addition, vascular protection by GRd was examined in nicotine-administered Sprague-Dawley (SD) rats by serum NO and Ang II assays, and by hematoxylin-eosin (HE) and immunostaining of aorta. We also examined effects of GRd on monocyte (THP-1 cells) adhesion assays, adenosine diphosphate (ADP)-induced platelet aggregation, and phenylephrine (PE)-induced vasoconstriction of isolated rat aortic rings. RESULTS In HUVECs, nicotine significantly suppressed NO production, enhanced Ang II production, downregulated eNOS expression, and upregulated expression levels of AGTR1, TLR4, MyD88, NF-κB, iNOS, Bax/Bcl-2 ratio, cleaved caspase-3, and cytochrome c (cyt c). All of these changes were significantly reversed by GRd. In rats, oral GRd reversed the reduction NO and enhanced Ang II production in serum induced by nicotine administration, and HE staining revealed protection of aortic endothelial cells. In addition, GRd reversed nicotine-mediated enhancement of HUVECs-monocyte adhesion, inhibited ADP-induced platelet aggregation and PE-induced vasoconstriction. CONCLUSION GRd may prevent nicotine-induced cardiovascular diseases by preserving normal vascular endothelial NO signaling, suppressing platelet aggregation and vasoconstriction, and by preventing endothelial cell-monocyte adhesion.
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Affiliation(s)
- Baobao Zhang
- State Key Laboratory of Natural Medicines, Department of TCMs Pharmaceuticals, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People' Republic of China
| | - Xiaolong Hu
- State Key Laboratory of Natural Medicines, Department of TCMs Pharmaceuticals, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People' Republic of China
| | - Huizhe Wang
- State Key Laboratory of Natural Medicines, Department of TCMs Pharmaceuticals, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People' Republic of China
| | - Rong Wang
- State Key Laboratory of Natural Medicines, Department of TCMs Pharmaceuticals, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People' Republic of China
| | - Zhongxuan Sun
- State Key Laboratory of Natural Medicines, Department of TCMs Pharmaceuticals, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People' Republic of China
| | - Xiaomei Tan
- State Key Laboratory of Natural Medicines, Department of TCMs Pharmaceuticals, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People' Republic of China
| | - Shumeng Liu
- State Key Laboratory of Natural Medicines, Department of TCMs Pharmaceuticals, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People' Republic of China
| | - Hao Wang
- State Key Laboratory of Natural Medicines, Department of TCMs Pharmaceuticals, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People' Republic of China.
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Lin T, Luo W, Li Z, Zhang L, Zheng X, Mai L, Yang W, Guan G, Su Z, Liu P, Li Z, Xie Y. Rhamnocitrin extracted from Nervilia fordii inhibited vascular endothelial activation via miR-185/STIM-1/SOCE/NFATc3. Phytomedicine 2020; 79:153350. [PMID: 33002827 DOI: 10.1016/j.phymed.2020.153350] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 08/22/2020] [Accepted: 09/18/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Vascular endothelial activation is pivotal for the pathological development of various infectious and inflammatory diseases. Therapeutic interventions to prevent endothelial activation are of great clinical significance to achieve anti-inflammatory strategy. Previous studies indicate that the total flavonoids from the endemic herbal medicine Nervilia fordii (Hance) Schltr exerts potent anti-inflammatory effect and protective effect against endotoxin lipopolysaccharide (LPS)-induced acute lung injury, and shows clinical benefit in severe acute respiratory syndromes (SARS). However, the exact effective component of Nervilia fordii and its potential mechanism remain unknown. PURPOSE The aim of this study was to investigate the effect and mechanism of rhamnocitrin (RH), a flavonoid extracted from Nervilia fordii, on LPS-induced endothelial activation. METHODS The in vitro endothelial cell activation model was induced by LPS in human umbilical vein endothelial cells (HUVECs). Cell viability was measured to determine the cytotoxicity of RH. RT-PCR, Western blot, fluorescent probe and immunofluorescence were conducted to evaluate the effect and mechanism of RH against endothelial activation. RESULTS RH was extracted and isolated from Nervilia fordii. RH at the concentration from 10-7 M-10-5 M inhibited the expressions of interlukin-6 (IL-6) and -8 (IL-8), monocyte chemotactic protein-1 (MCP-1), intercellular adhesion molecule-1 (ICAM-1), vascular cell-adhesion molecule-1 (VCAM-1), and plasminogen activator inhibitor-1 (PAI-1) in response to LPS challenge. Mechanistically, RH repressed calcium store-operated Ca2+ entry (SOCE) induced by LPS, which is due to downregulation of stromal interaction molecule-1 (STIM-1) following upregulating microRNA-185 (miR-185). Ultimately, RH abrogated LPS-induced activation of SOCE-mediated calcineurin/NFATc3 (nuclear factor of activated T cells, cytoplasmic 3) signaling pathway. CONCLUSION The present study identifies RH as a potent inhibitor of endothelial activation. Since vascular endothelial activation is a pivotal cause of excessive cytokine production, leading to cytokine storm and severe pathology in infectious diseases such as SARS and the ongoing COVID-19 pneumonia disease, RH might suggest promising therapeutic potential in the management of cytokine storm in these diseases.
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Affiliation(s)
- Tong Lin
- Laboratory of Pharmacology and Toxicology, School of Pharmaceutical Sciences; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; Guangdong Engineering Laboratoty of Druggability and New Drug Evaluation; Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou, P. R. China
| | - Wenwei Luo
- Laboratory of Pharmacology and Toxicology, School of Pharmaceutical Sciences; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; Guangdong Engineering Laboratoty of Druggability and New Drug Evaluation; Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou, P. R. China
| | - Ziqing Li
- Laboratory of Pharmacology and Toxicology, School of Pharmaceutical Sciences; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; Guangdong Engineering Laboratoty of Druggability and New Drug Evaluation; Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou, P. R. China
| | - Lili Zhang
- Laboratory of Pharmacology and Toxicology, School of Pharmaceutical Sciences; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; Guangdong Engineering Laboratoty of Druggability and New Drug Evaluation; Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou, P. R. China
| | - Xinghan Zheng
- Mathematical Engineering Academy of Chinese Medicine; Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, P. R. China
| | - Liting Mai
- Mathematical Engineering Academy of Chinese Medicine; Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, P. R. China
| | - Wanqi Yang
- Laboratory of Pharmacology and Toxicology, School of Pharmaceutical Sciences; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; Guangdong Engineering Laboratoty of Druggability and New Drug Evaluation; Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou, P. R. China
| | - Guimei Guan
- Department of obstetrics and gynecology, the first affiliated hospital of Sun Yat-sen University, Guangzhou, P. R. China
| | - Ziren Su
- Mathematical Engineering Academy of Chinese Medicine; Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, P. R. China
| | - Peiqing Liu
- Laboratory of Pharmacology and Toxicology, School of Pharmaceutical Sciences; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; Guangdong Engineering Laboratoty of Druggability and New Drug Evaluation; Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou, P. R. China
| | - Zhuoming Li
- Laboratory of Pharmacology and Toxicology, School of Pharmaceutical Sciences; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; Guangdong Engineering Laboratoty of Druggability and New Drug Evaluation; Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou, P. R. China.
| | - Youliang Xie
- Mathematical Engineering Academy of Chinese Medicine; Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, P. R. China.
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Rehman K, Haider K, Jabeen K, Akash MSH. Current perspectives of oleic acid: Regulation of molecular pathways in mitochondrial and endothelial functioning against insulin resistance and diabetes. Rev Endocr Metab Disord 2020; 21:631-643. [PMID: 32125563 DOI: 10.1007/s11154-020-09549-6] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Insulin resistance (IR) and type 2 diabetes mellitus (T2DM) is a leading cause of deaths due to metabolic disorders in recent years. Molecular mechanisms involved in the initiation and development of IR and T2DM are multiples. The major factors include mitochondrial dysfunction which may cause incomplete fatty acid oxidation (FAO). Oleic acid upregulates the expression of genes causing FAO by deacetylation of PGC1α by PKA-dependent activation of SIRT1-PGC1α complex. Another potent factor for the development of IR and T2DM is endothelial dysfunction as damaged endothelium causes increased release of inflammatory mediators such as TNF-α, IL-6, IL-1β, sVCAM, sICAM, E-selectin and other proinflammatory cytokines. While, on the other hand, oleic acid has the ability to regulate E-selectin, and sICAM expression. Rest of the risk factors may include inflammation, β-cell dysfunction, oxidative stress, hormonal imbalance, apoptosis, and enzyme dysregulation. Here, we have highlighted how oleic acid regulates underlying causatives factors and hence, keeps surpassing effect in prevention and treatment of IR and T2DM. However, the percentage contribution of these factors in combating IR and ultimately averting T2DM is still debatable. Thus, because of its exceptional protective effect, it can be considered as an improved therapeutic agent in prophylaxis and/or treatment of IR and T2DM.
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Affiliation(s)
- Kanwal Rehman
- Department of Pharmacy, University of Agriculture, Faisalabad, Pakistan.
| | - Kamran Haider
- Department of Pharmacy, University of Agriculture, Faisalabad, Pakistan
| | - Komal Jabeen
- Department of Pharmacy, University of Agriculture, Faisalabad, Pakistan
- Institute of Physiology and Pharmacology, University of Agriculture, Faisalabad, Pakistan
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Kim A, Seong KM, Choi YY, Shim S, Park S, Lee SS. Inhibition of EphA2 by Dasatinib Suppresses Radiation-Induced Intestinal Injury. Int J Mol Sci 2020; 21:ijms21239096. [PMID: 33265912 PMCID: PMC7730170 DOI: 10.3390/ijms21239096] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/24/2020] [Accepted: 11/25/2020] [Indexed: 12/16/2022] Open
Abstract
Radiation-induced multiorgan dysfunction is thought to result primarily from damage to the endothelial system, leading to a systemic inflammatory response that is mediated by the recruitment of leukocytes. The Eph–ephrin signaling pathway in the vascular system participates in various disease developmental processes, including cancer and inflammation. In this study, we demonstrate that radiation exposure increased intestinal inflammation via endothelial dysfunction, caused by the radiation-induced activation of EphA2, an Eph receptor tyrosine kinase, and its ligand ephrinA1. Barrier dysfunction in endothelial and epithelial cells was aggravated by vascular endothelial–cadherin disruption and leukocyte adhesion in radiation-induced inflammation both in vitro and in vivo. Among all Eph receptors and their ligands, EphA2 and ephrinA1 were required for barrier destabilization and leukocyte adhesion. Knockdown of EphA2 in endothelial cells reduced radiation-induced endothelial dysfunction. Furthermore, pharmacological inhibition of EphA2–ephrinA1 by the tyrosine kinase inhibitor dasatinib attenuated the loss of vascular integrity and leukocyte adhesion in vitro. Mice administered dasatinib exhibited resistance to radiation injury characterized by reduced barrier leakage and decreased leukocyte infiltration into the intestine. Taken together, these data suggest that dasatinib therapy represents a potential approach for the protection of radiation-mediated intestinal damage by targeting the EphA2–ephrinA1 complex.
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Affiliation(s)
- Areumnuri Kim
- Laboratory of Radiation Exposure and Therapeutics, National Radiation Emergency Medical Center, KIRAMS, Seoul 01812, Korea; (S.S.); (S.P.); (S.S.L.)
- Correspondence:
| | - Ki Moon Seong
- Laboratory of Biodosimetry, National Radiation Emergency Medical Center, KIRAMS, Seoul 01812, Korea; (K.M.S.); (Y.Y.C.)
| | - You Yeon Choi
- Laboratory of Biodosimetry, National Radiation Emergency Medical Center, KIRAMS, Seoul 01812, Korea; (K.M.S.); (Y.Y.C.)
| | - Sehwan Shim
- Laboratory of Radiation Exposure and Therapeutics, National Radiation Emergency Medical Center, KIRAMS, Seoul 01812, Korea; (S.S.); (S.P.); (S.S.L.)
| | - Sunhoo Park
- Laboratory of Radiation Exposure and Therapeutics, National Radiation Emergency Medical Center, KIRAMS, Seoul 01812, Korea; (S.S.); (S.P.); (S.S.L.)
- Laboratory of Biodosimetry, National Radiation Emergency Medical Center, KIRAMS, Seoul 01812, Korea; (K.M.S.); (Y.Y.C.)
| | - Seung Sook Lee
- Laboratory of Radiation Exposure and Therapeutics, National Radiation Emergency Medical Center, KIRAMS, Seoul 01812, Korea; (S.S.); (S.P.); (S.S.L.)
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142
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Hilfenhaus G, Mompeón A, Freshman J, Prajapati DP, Hernandez G, Freitas VM, Ma F, Langenbacher AD, Mirkov S, Song D, Cho BK, Goo YA, Pellegrini M, Chen JN, Damoiseaux R, Iruela-Arispe ML. A High-Content Screen Identifies Drugs That Restrict Tumor Cell Extravasation across the Endothelial Barrier. Cancer Res 2020; 81:619-633. [PMID: 33218969 DOI: 10.1158/0008-5472.can-19-3911] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Revised: 09/11/2020] [Accepted: 11/17/2020] [Indexed: 11/16/2022]
Abstract
Metastases largely rely on hematogenous dissemination of tumor cells via the vascular system and significantly limit prognosis of patients with solid tumors. To colonize distant sites, circulating tumor cells must destabilize the endothelial barrier and transmigrate across the vessel wall. Here we performed a high-content screen to identify drugs that block tumor cell extravasation by testing 3,520 compounds on a transendothelial invasion coculture assay. Hits were further characterized and validated using a series of in vitro assays, a zebrafish model enabling three-dimensional (3D) visualization of tumor cell extravasation, and mouse models of lung metastasis. The initial screen advanced 38 compounds as potential hits, of which, four compounds enhanced endothelial barrier stability while concurrently suppressing tumor cell motility. Two compounds niclosamide and forskolin significantly reduced tumor cell extravasation in zebrafish, and niclosamide drastically impaired metastasis in mice. Because niclosamide had not previously been linked with effects on barrier function, single-cell RNA sequencing uncovered mechanistic effects of the drug on both tumor and endothelial cells. Importantly, niclosamide affected homotypic and heterotypic signaling critical to intercellular junctions, cell-matrix interactions, and cytoskeletal regulation. Proteomic analysis indicated that niclosamide-treated mice also showed reduced levels of kininogen, the precursor to the permeability mediator bradykinin. Our findings designate niclosamide as an effective drug that restricts tumor cell extravasation through modulation of signaling pathways, chemokines, and tumor-endothelial cell interactions. SIGNIFICANCE: A high-content screen identified niclosamide as an effective drug that restricts tumor cell extravasation by enhancing endothelial barrier stability through modulation of molecular signaling, chemokines, and tumor-endothelial cell interactions. GRAPHICAL ABSTRACT: http://cancerres.aacrjournals.org/content/canres/81/3/619/F1.large.jpg.
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Affiliation(s)
- Georg Hilfenhaus
- Department of Molecular, Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, California
| | - Ana Mompeón
- Department of Cell and Developmental Biology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Jonathan Freshman
- Department of Molecular, Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, California
| | - Divya P Prajapati
- Department of Molecular, Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, California
| | - Gloria Hernandez
- Molecular Biology Institute, University of California, Los Angeles, Los Angeles, California
| | - Vanessa M Freitas
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Feiyang Ma
- Molecular Biology Institute, University of California, Los Angeles, Los Angeles, California
| | - Adam D Langenbacher
- Department of Molecular, Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, California
| | - Snezana Mirkov
- Department of Cell and Developmental Biology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Dana Song
- Department of Molecular, Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, California
| | - Byoung-Kyu Cho
- Proteomics Center of Excellence, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Young Ah Goo
- Proteomics Center of Excellence, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Matteo Pellegrini
- Department of Molecular, Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, California
- Molecular Biology Institute, University of California, Los Angeles, Los Angeles, California
| | - Jau-Nian Chen
- Department of Molecular, Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, California
- Molecular Biology Institute, University of California, Los Angeles, Los Angeles, California
| | - Robert Damoiseaux
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, California
- California NanoSystems Institute, University of California, Los Angeles, Los Angeles, California
- Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, California
| | - M Luisa Iruela-Arispe
- Department of Molecular, Cell and Developmental Biology, University of California, Los Angeles, Los Angeles, California.
- Department of Cell and Developmental Biology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
- Molecular Biology Institute, University of California, Los Angeles, Los Angeles, California
- Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, California
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143
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Smeets ETHC, Mensink RP, Hoeks J, de Vogel-Van den Bosch J, Hageman RJJ, Joris PJ. Effects of Beetroot Powder with or without L-Arginine on Postprandial Vascular Endothelial Function: Results of a Randomized Controlled Trial with Abdominally Obese Men. Nutrients 2020; 12:E3520. [PMID: 33207606 PMCID: PMC7697292 DOI: 10.3390/nu12113520] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 11/10/2020] [Accepted: 11/12/2020] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Through effects on nitric oxide bioavailability, vascular endothelial function is improved after the intake of a high amount of nitrate or L-arginine, but decreased after the intake of a high-fat meal. Therefore, we compared the effects of beetroot powder with or without L-arginine on postprandial brachial artery flow-mediated vasodilation (FMD) after consumption of a high-fat mixed-meal. METHODS Eighteen abdominally obese men completed this randomized, double-blinded, cross-over trial. The study consisted of five test days, each separated by a wash-out period of at least one week. Participants received in random order, a blended meal with a control or nutritional supplement consisting of beetroot powder providing 200 mg nitrate, beetroot with 0.8 g of L-arginine, beetroot with 1.5 g of L-arginine, or 3.0 g of L-arginine. Participants then fasted and 2 h postprandial FMD measurements were performed. RESULTS No significant differences between meals were observed for postprandial FMD (p = 0.45) levels. However, there was a non-significant trend towards a more beneficial postprandial FMD response with the beetroot-containing meals as compared with meals without beetroot. CONCLUSION This trial could not provide evidence for beneficial additive effects of a single dose of beetroot powder combined with L-arginine on postprandial endothelial function in abdominally obese men.
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Affiliation(s)
- Ellen T. H. C. Smeets
- Department of Nutrition and Movement Sciences, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, P.O. Box 616, 6200 Maastricht, The Netherlands; (E.T.H.C.S.); (R.P.M.); (J.H.)
| | - Ronald P. Mensink
- Department of Nutrition and Movement Sciences, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, P.O. Box 616, 6200 Maastricht, The Netherlands; (E.T.H.C.S.); (R.P.M.); (J.H.)
| | - Joris Hoeks
- Department of Nutrition and Movement Sciences, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, P.O. Box 616, 6200 Maastricht, The Netherlands; (E.T.H.C.S.); (R.P.M.); (J.H.)
| | | | - Robert J. J. Hageman
- Danone Nutricia Research, 3584 Utrecht, The Netherlands; (J.d.V.-V.d.B.); (R.J.J.H.)
| | - Peter J. Joris
- Department of Nutrition and Movement Sciences, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, P.O. Box 616, 6200 Maastricht, The Netherlands; (E.T.H.C.S.); (R.P.M.); (J.H.)
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144
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Pang ZD, Wang Y, Song Z, She G, Ma XZ, Sun X, Wu W, Lai BC, Zhang J, Zhang Y, Du XJ, Shyy JYJ, Deng XL. AMPK upregulates K Ca2.3 channels and ameliorates endothelial dysfunction in diet-induced obese mice. Biochem Pharmacol 2020; 183:114337. [PMID: 33186592 DOI: 10.1016/j.bcp.2020.114337] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 10/21/2020] [Accepted: 11/06/2020] [Indexed: 01/01/2023]
Abstract
The opening of endothelial small-conductance calcium-activated potassium channels (KCa2.3) is essential for endothelium-dependent hyperpolarization (EDH), which predominantly occurs in small resistance arteries. Adenosine monophosphate-activated protein kinase (AMPK), an important metabolic regulator, has been implicated in regulating endothelial nitric oxide synthase activity. However, it was unclear whether AMPK regulated endothelial KCa2.3-mediated EDH-type vasodilation. Using bioinformatics analysis and myograph system, we investigated the regulation by AMPK of KCa2.3 in human umbilical vein endothelial cells (HUVECs) or mouse second-order mesenteric resistance arteries. In HUVECs, AMPK activation either by activators (AICAR, A769662 and MK-8722) or expression of the constitutively active form of AMPK significantly upregulated KCa2.3 expression. Such effects were abolished by AMPK inhibitor (compound C) or AMPK α1-/α2-siRNA, extracellular-signal-regulated-kinase 5 (ERK5) inhibitor (ERK5-IN-1), and specific siRNA to myocyte-enhancer factor 2 (MEF2) or krüppel-like factor 2/4 (KLF2/4). KCa2.3 expression was significantly reduced in mesenteric resistance arteries in AMPKα2 knockout mice when compared with littermate control mice. Furthermore, in high-fat diet fed mice, 2-week treatment with AICAR restored endothelial KCa2.3 expression in mesenteric resistance arteries with improved endothelial dysfunction. Our results demonstrate that activation of AMPK upregulates KCa2.3 channel expression through the ERK5-MEF2-KLF2/4 signaling pathway in vascular endothelium, which contributes to benefits through KCa2.3-mediated EDH-type vasodilation in mesenteric resistance arteries.
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Affiliation(s)
- Zheng-Da Pang
- Department of Physiology and Pathophysiology, Cardiovascular Research Centre, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 76 West Yanta Road, Xi'an 710061, Shaanxi, China
| | - Yan Wang
- Department of Physiology and Pathophysiology, Cardiovascular Research Centre, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 76 West Yanta Road, Xi'an 710061, Shaanxi, China
| | - Zheng Song
- Department of Physiology and Pathophysiology, Cardiovascular Research Centre, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 76 West Yanta Road, Xi'an 710061, Shaanxi, China
| | - Gang She
- Department of Physiology and Pathophysiology, Cardiovascular Research Centre, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 76 West Yanta Road, Xi'an 710061, Shaanxi, China
| | - Xiao-Zhen Ma
- Department of Physiology and Pathophysiology, Cardiovascular Research Centre, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 76 West Yanta Road, Xi'an 710061, Shaanxi, China
| | - Xia Sun
- Department of Physiology and Pathophysiology, Cardiovascular Research Centre, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 76 West Yanta Road, Xi'an 710061, Shaanxi, China
| | - Wei Wu
- Department of Physiology and Pathophysiology, Cardiovascular Research Centre, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 76 West Yanta Road, Xi'an 710061, Shaanxi, China
| | - Bao-Chang Lai
- Department of Physiology and Pathophysiology, Cardiovascular Research Centre, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 76 West Yanta Road, Xi'an 710061, Shaanxi, China
| | - Jiao Zhang
- Division of Cardiology, Department of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla CA 92093-0613, CA, United States
| | - Yi Zhang
- Department of Physiology and Pathophysiology, Cardiovascular Research Centre, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 76 West Yanta Road, Xi'an 710061, Shaanxi, China
| | - Xiao-Jun Du
- Department of Physiology and Pathophysiology, Cardiovascular Research Centre, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 76 West Yanta Road, Xi'an 710061, Shaanxi, China
| | - John Y J Shyy
- Division of Cardiology, Department of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla CA 92093-0613, CA, United States.
| | - Xiu-Ling Deng
- Department of Physiology and Pathophysiology, Cardiovascular Research Centre, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 76 West Yanta Road, Xi'an 710061, Shaanxi, China; Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an Jiaotong University Health Science Center, 76 West Yanta Road, Xi'an 710061, Shaanxi, China.
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145
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Bishop E, Breheny D, Hewitt K, Taylor M, Jaunky T, Camacho OM, Thorne D, Gaça M. Evaluation of a high-throughput in vitro endothelial cell migration assay for the assessment of nicotine and tobacco delivery products. Toxicol Lett 2020; 334:110-116. [PMID: 32707277 DOI: 10.1016/j.toxlet.2020.07.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 07/07/2020] [Accepted: 07/09/2020] [Indexed: 12/17/2022]
Abstract
Endothelial cell migration is a critical process in the maintenance of healthy blood vessels. Impaired endothelial migration is reportedly associated with the development of cardiovascular diseases. Here, we report on the development of a 96-well in vitro endothelial migration assay for the purpose of comparative toxicological assessment of a novel THP relative to cigarette smoke, to be able to rapidly inform regulatory decision making. Uniform scratches were induced in confluent human umbilical vein endothelial cells using the 96-pin wound maker and exposed to 3R4F cigarette or THP aqueous extracts (AqE). Endothelial migration was recorded over 24 h, and the rate of wound closure calculated using mean relative wound density rather than migration rate as previously reported. This self-normalising parameter accounts for starting wound size, by comparing the density of the scratch to the outer region at each time-point. Furthermore, wound width acceptance criteria was defined to further increase the sensitivity of the assay. 3R4F and THP AqE samples were tested at comparable nicotine concentrations. 3R4F showed significant cytotoxicity and inhibition of wound healing whereas THP AqE did not show any response in either endpoint. This 96-well endothelial migration assay was suitably sensitive to distinguish combustible cigarette and THP test articles.
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Affiliation(s)
- Emma Bishop
- British American Tobacco, R&D, Southampton, SO15 8TL, UK.
| | - Damien Breheny
- British American Tobacco, R&D, Southampton, SO15 8TL, UK
| | | | - Mark Taylor
- British American Tobacco, R&D, Southampton, SO15 8TL, UK
| | - Tomasz Jaunky
- British American Tobacco, R&D, Southampton, SO15 8TL, UK
| | | | - David Thorne
- British American Tobacco, R&D, Southampton, SO15 8TL, UK
| | - Marianna Gaça
- British American Tobacco, R&D, Southampton, SO15 8TL, UK
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146
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Kishimoto S, Oki K, Maruhashi T, Kajikawa M, Hashimoto H, Takaeko Y, Harada T, Yamaji T, Han Y, Kihara Y, Chayama K, Goto C, Yusoff FM, Nakashima A, Higashi Y. A Comparison of Adrenalectomy and Eplerenone on Vascular Function in Patients with Aldosterone-producing Adenoma. J Clin Endocrinol Metab 2020; 105:5895011. [PMID: 32818224 DOI: 10.1210/clinem/dgaa561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 08/15/2020] [Indexed: 11/19/2022]
Abstract
CONTEXT It remains unclear whether adrenalectomy has more beneficial effects than treatment with a mineralocorticoid receptor antagonist on vascular function in patients with aldosterone-producing adenoma (APA). OBJECTIVE The aim of this study was to compare the effects of adrenalectomy and treatment with eplerenone on vascular function in patients with APA. DESIGN, SETTING, AND PATIENTS Flow-mediated vasodilation (FMD), as an index of endothelium-dependent vasodilation, and nitroglycerine-induced vasodilation (NID), as an index of endothelium-independent vasodilation, were measured to assess vascular function before and after a 3-month treatment with eplerenone and at 3 months after adrenalectomy in 23 patients with APA. RESULTS Flow-mediated vasodilation and NID after adrenalectomy were significantly higher than those before treatment with eplerenone (5.4 ± 2.6% vs 2.7 ± 1.9% and 14.8 ± 4.7% vs 9.6 ± 4.6%, P < 0.01, respectively) and those after treatment with eplerenone (5.4 ± 2.6% vs 3.1 ± 2.3% and 14.8 ± 4.7% vs 11.0 ± 5.3%, P < 0.01 and P = 0.03, respectively), while treatment with eplerenone did not alter FMD and NID compared with those before treatment with eplerenone. After adrenalectomy, the increase in FMD and NID were significantly correlated with a decrease in plasma aldosterone concentration and a decrease in the aldosterone-renin ratio. There were no significant relationships between FMD and changes in other parameters or between NID and changes in other parameters. CONCLUSIONS Adrenalectomy, but not treatment with eplerenone, improved vascular function in patients with APA. Adrenalectomy may be more effective than treatment with eplerenone for reducing the incidence of future cardiovascular events in patients with APA. Clinical Trial Information: URL for the clinical trial: http://UMIN; Registration Number for the clinical trial: UMIN000003409.
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Affiliation(s)
- Shinji Kishimoto
- Department of Cardiovascular Regeneration and Medicine, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Kenji Oki
- Department of Molecular and Internal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Tatsuya Maruhashi
- Department of Cardiovascular Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Masato Kajikawa
- Division of Regeneration and Medicine, Medical Center for Translational and Clinical Research, Hiroshima University Hospital, Hiroshima, Japan
| | - Haruki Hashimoto
- Department of Cardiovascular Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Yuji Takaeko
- Department of Cardiovascular Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Takahiro Harada
- Department of Cardiovascular Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Takayuki Yamaji
- Department of Cardiovascular Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Yiming Han
- Department of Cardiovascular Regeneration and Medicine, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Yasuki Kihara
- Department of Cardiovascular Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Kazuaki Chayama
- Department of Gastroenterology and Metabolism, Institute of Biomedical and Health Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Chikara Goto
- Department of Rehabilitation, Faculty of General Rehabilitation, Hiroshima International University, Hiroshima, Japan
| | - Farina Mohamad Yusoff
- Department of Cardiovascular Regeneration and Medicine, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Ayumu Nakashima
- Department of Stem Cell Biology and Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Yukihito Higashi
- Department of Cardiovascular Regeneration and Medicine, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
- Division of Regeneration and Medicine, Medical Center for Translational and Clinical Research, Hiroshima University Hospital, Hiroshima, Japan
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147
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Ren G, Bhatnagar S, Hahn DJ, Kim JA. Long-chain acyl-CoA synthetase-1 mediates the palmitic acid-induced inflammatory response in human aortic endothelial cells. Am J Physiol Endocrinol Metab 2020; 319:E893-E903. [PMID: 32954825 PMCID: PMC7790120 DOI: 10.1152/ajpendo.00117.2020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Saturated fatty acid (SFA) induces proinflammatory response through a Toll-like receptor (TLR)-mediated mechanism, which is associated with cardiometabolic diseases such as obesity, insulin resistance, and endothelial dysfunction. Consistent with this notion, TLR2 or TLR4 knockout mice are protected from obesity-induced proinflammatory response and endothelial dysfunction. Although SFA causes endothelial dysfunction through TLR-mediated signaling pathways, the mechanisms underlying SFA-stimulated inflammatory response are not completely understood. To understand the proinflammatory response in vascular endothelial cells in high-lipid conditions, we compared the proinflammatory responses stimulated by palmitic acid (PA) and other canonical TLR agonists [lipopolysaccharide (LPS), Pam3-Cys-Ser-Lys4 (Pam3CSK4), or macrophage-activating lipopeptide-2)] in human aortic endothelial cells. The expression profiles of E-selectin and the signal transduction pathways stimulated by PA were distinct from those stimulated by canonical TLR agonists. Inhibition of long-chain acyl-CoA synthetases (ACSL) by a pharmacological inhibitor or knockdown of ACSL1 blunted the PA-stimulated, but not the LPS- or Pam3CSK4-stimulated proinflammatory responses. Furthermore, triacsin C restored the insulin-stimulated vasodilation, which was impaired by PA. From the results, we concluded that PA stimulates the proinflammatory response in the vascular endothelium through an ACSL1-mediated mechanism, which is distinct from LPS- or Pam3CSK4-stimulated responses. The results suggest that endothelial dysfunction caused by PA may require to undergo intracellular metabolism. This expands the understanding of the mechanisms by which TLRs mediate inflammatory responses in endothelial dysfunction and cardiovascular disease.
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Affiliation(s)
- Guang Ren
- Department of Medicine, Division of Endocrinology, Diabetes, and Metabolism, University of Alabama at Birmingham, Alabama
| | - Sushant Bhatnagar
- Department of Medicine, Division of Endocrinology, Diabetes, and Metabolism, University of Alabama at Birmingham, Alabama
- Department of Cell, Developmental and Integrative Biology, University of Alabama, Birmingham, Alabama
- UAB Comprehensive Diabetes Center, University of Alabama, Birmingham, Alabama
| | | | - Jeong-A Kim
- Department of Medicine, Division of Endocrinology, Diabetes, and Metabolism, University of Alabama at Birmingham, Alabama
- Department of Cell, Developmental and Integrative Biology, University of Alabama, Birmingham, Alabama
- UAB Comprehensive Diabetes Center, University of Alabama, Birmingham, Alabama
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148
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Arapa-Diaz JC, Rouver WDN, Giesen JAS, Grando MD, Bendhack LM, Santos RLD. Testosterone increases bradykinin-induced relaxation in the coronary bed of hypertensive rats. J Mol Endocrinol 2020; 65:125-134. [PMID: 33027756 DOI: 10.1530/jme-20-0153] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 09/03/2020] [Indexed: 11/08/2022]
Abstract
Physiological or supraphysiological levels of testosterone appear to be associated with the development of risk factors for cardiovascular diseases such as hypertension, as this hormone modulates the release of endothelial factors. However, its actions are still controversial, especially in the coronary circulation of hypertensive animals. This study was designed to assess the effects of testosterone treatment (T) on endothelium-dependent coronary vascular reactivity in orchiectomized SHR. The animals were divided into SHAM, orchiectomized (ORX), ORX+T and ORX+T+aromatase inhibitor (AI). All treatments lasted 15 days. Blood pressure (BP) was measured. Dose-response curves to bradykinin (BK) were constructed using the Langendorff technique, followed by inhibition of endothelium mediators (NO, prostanoids, EETs) and potassium channels. The intensity of eNOS, COX-1, COX-2, Akt, and gp91phox protein expression was quantified by Western blotting. BP was elevated in SHAM, ORX+T, and ORX+T+AI groups. However, we did not observe differences in the ORX group. Baseline coronary perfusion pressure (CPP) remained unaffected. Orchiectomy did not change the BK-induced relaxation compared to the SHAM group, whereas testosterone treatment increased it. This response was diminished in the absence of NO, prostanoids, and EETs in the SHAM and ORX groups, while in ORX+T group the relaxation was diminished only in the absence of NO and EETs. There was no difference in eNOS, COX-1, COX-2, and gp91phox protein expression, though Akt expression was increased in ORX and ORX+T groups. These results show that testosterone treatment can modulate endothelial function, especially in the coronary circulation under hypertension conditions, via NO and EETs pathways.
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Affiliation(s)
- Juan Carlos Arapa-Diaz
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Vitoria, Brazil
| | - Wender do Nascimento Rouver
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Vitoria, Brazil
| | | | - Marcela Daruge Grando
- Department of Physics and Chemistry, Faculty of Pharmaceutical Sciences from Ribeirão Preto, University of São Paulo, São Paulo, Brazil
| | - Lusiane Maria Bendhack
- Department of Physics and Chemistry, Faculty of Pharmaceutical Sciences from Ribeirão Preto, University of São Paulo, São Paulo, Brazil
| | - Roger Lyrio Dos Santos
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Vitoria, Brazil
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Napoli R, Ruvolo A, Triggianese P, Prevete N, Schiattarella GG, Nigro C, Miele C, Magliulo F, Grassi S, Pecoraro A, Cittadini A, Esposito G, de Paulis A, Spadaro G. Immunoglobulins G modulate endothelial function and affect insulin sensitivity in humans. Nutr Metab Cardiovasc Dis 2020; 30:2085-2092. [PMID: 32807637 DOI: 10.1016/j.numecd.2020.07.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 06/12/2020] [Accepted: 07/01/2020] [Indexed: 12/27/2022]
Abstract
BACKGROUND AND AIMS Data from animals suggest that immunoglobulins G (IgG) play a mechanistic role in atherosclerosis and diabetes through endothelial dysfunction and insulin resistance. Patients with common variable immunodeficiency (CVID), who have low circulating levels of IgG and are treated with intravenous polyclonal IgG (IVIgG), may provide an ideal model to clarify whether circulating IgG modulate endothelial function and affect insulin sensitivity in humans. METHODS AND RESULTS We studied 24 patients with CVID and 17 matched healthy controls (HC). Endothelial function was evaluated as flow mediated dilation (FMD) of the brachial artery at baseline and 1, 7, 14, and 21 days after IVIgG infusion in the CVID patients. We measured also plasma glucose, insulin, and calculated the HOMA-IR index. We also investigated the role of human IgG on the production of Nitric Oxide (NO) in vitro in Human Coronary Artery Endothelial Cells (HCAEC). Compared to HC, FMD of CVID patients was significantly impaired at baseline (9.4 ± 0.9 and 7.6 ± 0.6% respectively, p < 0.05) but rose above normal levels 1 and 7 days after IVIgG infusion to return at baseline at 14 and 21 days. Serum insulin concentration and HOMA-IR index dropped by 50% in CVID patients after IVIgG (p < 0.002 vs. baseline). In vitro IgG stimulated NO production in HCAEC. CONCLUSIONS Reduced IgG levels are associated with endothelial dysfunction and IVIgG stimulates endothelial function directly while improving insulin sensitivity. The current findings may suggest an anti-atherogenic role of human IgG.
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Affiliation(s)
- Raffaele Napoli
- Department of Translational Medical Sciences, Federico II University School of Medicine, Naples, Italy.
| | - Antonio Ruvolo
- Department of Translational Medical Sciences, Federico II University School of Medicine, Naples, Italy
| | - Paola Triggianese
- Department of Translational Medical Sciences, Federico II University School of Medicine, Naples, Italy
| | - Nella Prevete
- Department of Translational Medical Sciences, Federico II University School of Medicine, Naples, Italy
| | - Gabriele G Schiattarella
- Department of Advanced Biomedical Sciences, Federico II University School of Medicine, Naples, Italy
| | - Cecilia Nigro
- Department of Translational Medical Sciences, Federico II University School of Medicine, Naples, Italy
| | - Claudia Miele
- Department of Translational Medical Sciences, Federico II University School of Medicine, Naples, Italy
| | - Fabio Magliulo
- Department of Advanced Biomedical Sciences, Federico II University School of Medicine, Naples, Italy
| | - Simona Grassi
- Department of Translational Medical Sciences, Federico II University School of Medicine, Naples, Italy
| | - Antonio Pecoraro
- Department of Translational Medical Sciences, Federico II University School of Medicine, Naples, Italy
| | - Antonio Cittadini
- Department of Translational Medical Sciences, Federico II University School of Medicine, Naples, Italy
| | - Giovanni Esposito
- Department of Advanced Biomedical Sciences, Federico II University School of Medicine, Naples, Italy
| | - Amato de Paulis
- Department of Translational Medical Sciences, Federico II University School of Medicine, Naples, Italy
| | - Giuseppe Spadaro
- Department of Translational Medical Sciences, Federico II University School of Medicine, Naples, Italy
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150
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Halder SK, Milner R. Mild hypoxia triggers transient blood-brain barrier disruption: a fundamental protective role for microglia. Acta Neuropathol Commun 2020; 8:175. [PMID: 33115539 PMCID: PMC7592567 DOI: 10.1186/s40478-020-01051-z] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 10/02/2020] [Indexed: 12/11/2022] Open
Abstract
We recently demonstrated that when mice are exposed to chronic mild hypoxia (CMH, 8% O2), blood vessels in the spinal cord show transient vascular leak that is associated with clustering and activation of microglia around disrupted vessels. Importantly, microglial depletion profoundly increased hypoxia-induced vascular leak, implying that microglia play a critical role maintaining vascular integrity in the hypoxic spinal cord. The goal of the current study was to examine if microglia play a similar vasculo-protective function in the brain. Employing extravascular fibrinogen leak as an index of blood-brain barrier (BBB) disruption, we found that CMH provoked transient vascular leak in cerebral blood vessels that was associated with activation and aggregation of Mac-1-positive microglia around leaky vessels. Interestingly, CMH-induced vascular leak showed regional selectivity, being much more prevalent in the brainstem and olfactory bulb than the cerebral cortex and cerebellum. Pharmacological depletion of microglia with the colony stimulating factor-1 receptor inhibitor PLX5622, had no effect under normoxic conditions, but markedly increased hypoxia-induced cerebrovascular leak in all regions examined. As in the spinal cord, this was associated with endothelial induction of MECA-32, a marker of leaky CNS endothelium, and greater loss of endothelial tight junction proteins. Brain regions displaying the highest levels of hypoxic-induced vascular leak also showed the greatest levels of angiogenic remodeling, suggesting that transient BBB disruption may be an unwanted side-effect of hypoxic-induced angiogenic remodeling. As hypoxia is common to a multitude of human diseases including obstructive sleep apnea, lung disease, and age-related pulmonary, cardiac and cerebrovascular dysfunction, our findings have important translational implications. First, they point to a potential pathogenic role of chronic hypoxia in triggering BBB disruption and subsequent neurological dysfunction, and second, they demonstrate an important protective role for microglia in maintaining vascular integrity in the hypoxic brain.
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Affiliation(s)
- Sebok K. Halder
- San Diego Biomedical Research Institute, 10865 Road to the Cure, Suite 100, San Diego, CA 92121 USA
| | - Richard Milner
- San Diego Biomedical Research Institute, 10865 Road to the Cure, Suite 100, San Diego, CA 92121 USA
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