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Bruder‐Nascimento A, Awata WMC, Alves JV, Singh S, Costa RM, Bruder‐Nascimento T. Progranulin Maintains Blood Pressure and Vascular Tone Dependent on EphrinA2 and Sortilin1 Receptors and Endothelial Nitric Oxide Synthase Activation. J Am Heart Assoc 2023; 12:e030353. [PMID: 37581395 PMCID: PMC10492929 DOI: 10.1161/jaha.123.030353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 07/06/2023] [Indexed: 08/16/2023]
Abstract
Background The mechanisms determining vascular tone are still not completely understood, even though it is a significant factor in blood pressure management. Many circulating proteins have a significant impact on controlling vascular tone. Progranulin displays anti-inflammatory effects and has been extensively studied in neurodegenerative illnesses. We investigated whether progranulin sustains the vascular tone that helps regulate blood pressure. Methods and Results We used male and female C57BL6/J wild type (progranulin+/+) and B6(Cg)-Grntm1.1Aidi/J (progranulin-/-) to understand the impact of progranulin on vascular contractility and blood pressure. We found that progranulin-/- mice display elevated blood pressure followed by hypercontractility to noradrenaline in mesenteric arteries, which is restored by supplementing the mice with recombinant progranulin. In ex vivo experiments, recombinant progranulin attenuated the vascular contractility to noradrenaline in male and female progranulin+/+ arteries, which was blunted by blocking EphrinA2 or Sortilin1. To understand the mechanisms whereby progranulin evokes anticontractile effects, we inhibited endothelial factors. N(gamma)-nitro-L-arginine methyl ester (nitric oxide synthase inhibitor) prevented the progranulin effects, whereas indomethacin (cyclooxygenase inhibitor) affected only the contractility in arteries incubated with vehicle, indicating that progranulin increases nitric oxide and decreases contractile prostanoids. Finally, recombinant progranulin induced endothelial nitric oxide synthase phosphorylation and nitric oxide production in isolated mesenteric endothelial cells. Conclusions Circulating progranulin regulates vascular tone and blood pressure via EphrinA2 and Sortilin1 receptors and endothelial nitric oxide synthase activation. Collectively, our data suggest that deficiency in progranulin is a cardiovascular risk factor and that progranulin might be a new therapeutic avenue to treat high blood pressure.
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Affiliation(s)
- Ariane Bruder‐Nascimento
- Department of PediatricsUniversity of PittsburghPittsburghPAUSA
- Center for Pediatrics Research in Obesity and Metabolism (CPROM)PittsburghPAUSA
| | - Wanessa M. C. Awata
- Department of PediatricsUniversity of PittsburghPittsburghPAUSA
- Center for Pediatrics Research in Obesity and Metabolism (CPROM)PittsburghPAUSA
| | - Juliano V. Alves
- Department of PediatricsUniversity of PittsburghPittsburghPAUSA
- Center for Pediatrics Research in Obesity and Metabolism (CPROM)PittsburghPAUSA
| | - Shubhnita Singh
- Department of PediatricsUniversity of PittsburghPittsburghPAUSA
- Center for Pediatrics Research in Obesity and Metabolism (CPROM)PittsburghPAUSA
| | - Rafael M. Costa
- Department of PediatricsUniversity of PittsburghPittsburghPAUSA
- Center for Pediatrics Research in Obesity and Metabolism (CPROM)PittsburghPAUSA
| | - Thiago Bruder‐Nascimento
- Department of PediatricsUniversity of PittsburghPittsburghPAUSA
- Center for Pediatrics Research in Obesity and Metabolism (CPROM)PittsburghPAUSA
- Endocrinology Division at UPMC Children’s Hospital of PittsburghPittsburghPAUSA
- Vascular Medicine Institute (VMI), University of PittsburghPittsburghPAUSA
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Xu B, Chen X, Ding Y, Chen C, Liu T, Zhang H. Abnormal angiogenesis of placenta in progranulin‑deficient mice. Mol Med Rep 2020; 22:3482-3492. [PMID: 32945448 PMCID: PMC7453605 DOI: 10.3892/mmr.2020.11438] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 07/16/2020] [Indexed: 12/23/2022] Open
Abstract
Progranulin (PGRN) is a secreted growth factor involved in pleiotropic functions, particularly angiogenesis. A distinctly different placental expression of PGRN has been reported between normal pregnancies and pregnancies with complications, such as pre‑eclampsia or fetal growth restriction. However, the role of PGRN in placental vascular development remains to be elucidated. In the present study, PGRN‑knockout mice (PGRN‑/‑) were used to investigate the role of PGRN in the development of placental blood vessels and placental formation. Placental weights and pup body weights were significantly lower in the PGRN‑/‑ mice compared with the wild‑type mice. Reduced labyrinthine layer areas and aberrant vascularization were also observed via hematoxylin and eosin staining of PGRN‑/‑ mice at embryonic day 14.5 (E14.5) and E17.5. In addition, the morphological data obtained via immunohistochemistry, immunofluorescence staining and western blotting demonstrated decreased expression levels of the blood vessel markers α‑smooth muscle actin and CD31 in PGRN‑/‑ placentas. Furthermore, vasodilator endothelial nitric oxide synthase was reduced in the PGRN‑/‑ placenta. These results indicated that PGRN serves an essential role in the normal angiogenesis of the placental labyrinth in mice.
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Affiliation(s)
- Bairuo Xu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Xingyou Chen
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Yubin Ding
- College of Public Health and Health Management, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Chang Chen
- Institute of Life Sciences, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Taihang Liu
- College of Public Health and Health Management, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Hua Zhang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
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Zhuang XL, Zhu ZL, Zhu JL, Lai SM, Gui LX, Lin MJ. Synchronous detection of vascular tension and nitric oxide release in pulmonary artery: A combined application of confocal wire myograph with confocal laser scanning microscopy. Vascular 2020; 28:619-628. [PMID: 32295493 DOI: 10.1177/1708538120917555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVES To detect the vascular tension and nitric oxide (NO) release synchronously in mice pulmonary artery, we perform two experiments and present a novel application of confocal wire myograph coupled with the confocal laser scanning microscopy. METHODS In the first experiment, viable endothelium-intact mouse pulmonary artery (outer diameter 100-300 μM) rings underwent a one-hour preincubation with a NO-specific fluorescent dye, 4-amino-5-methylamino-2',7'-difluorofluorescein diacetate Calbiochem (2.5 μM), and then precontracted with phenylephrine (Phen, 10-6 M), and subsequently dilated in acetylcholine (ACh, 10-6 M - 10-4 M). The endothelium-dependent vasorelaxation and NO generation in pulmonary artery rings were simultaneously recorded. In the second experiment, after 30-min incubation with the former NO fluorescent dye, the qualified pulmonary artery rings were co-incubated for another 30 min with a nitric oxide synthase inhibitor, 10-4 M Nω-nitro-L-arginine-methyl-ester (L-NAME), and then pretreated with Phen (10-6 M) followed by ACh (10-5 M). The Ach-induced vasodilation and NO release were recorded simultaneously. RESULTS ACh (10-6 M - 10-4 M) promoted pulmonary artery relaxation and intracellular NO release in a dose-dependent manner. Additionally, L-NAME (10-4 M) significantly attenuated the vasodilatation and the intracellular NO release. CONCLUSIONS This combined application visually confirms that the synchronous changes in Ach induced vasodilation and NO release, which provides a new method for cardiovascular research.
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Affiliation(s)
- Xiao-Ling Zhuang
- Department of Physiology & Pathophysiology, The Key Laboratory of Fujian Province Universities on Ion Channel and Signal Transduction in Cardiovascular Diseases, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China.,Department of Pathology, Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian Province, China
| | - Zhuang-Li Zhu
- Department of Physiology & Pathophysiology, The Key Laboratory of Fujian Province Universities on Ion Channel and Signal Transduction in Cardiovascular Diseases, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Jie-Ling Zhu
- Department of Physiology & Pathophysiology, The Key Laboratory of Fujian Province Universities on Ion Channel and Signal Transduction in Cardiovascular Diseases, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Su-Mei Lai
- Department of Physiology & Pathophysiology, The Key Laboratory of Fujian Province Universities on Ion Channel and Signal Transduction in Cardiovascular Diseases, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Long-Xin Gui
- Department of Physiology & Pathophysiology, The Key Laboratory of Fujian Province Universities on Ion Channel and Signal Transduction in Cardiovascular Diseases, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Mo-Jun Lin
- Department of Physiology & Pathophysiology, The Key Laboratory of Fujian Province Universities on Ion Channel and Signal Transduction in Cardiovascular Diseases, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
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Westphal A, Mrowka R. New insights into the astonishing diversity of hormone functions. Acta Physiol (Oxf) 2018; 224:e13188. [PMID: 30240073 DOI: 10.1111/apha.13188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 09/17/2018] [Accepted: 09/17/2018] [Indexed: 12/14/2022]
Affiliation(s)
- Anika Westphal
- Klinik für Innere Medizin III, AG Experimentelle Nephrologie; Universitätsklinikum Jena; Jena Germany
| | - Ralf Mrowka
- Klinik für Innere Medizin III, AG Experimentelle Nephrologie; Universitätsklinikum Jena; Jena Germany
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Kodama T, Okada M, Yamawaki H. Mechanisms underlying the relaxation by A484954, a eukaryotic elongation factor 2 kinase inhibitor, in rat isolated mesenteric artery. J Pharmacol Sci 2018; 137:86-92. [PMID: 29778449 DOI: 10.1016/j.jphs.2018.04.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 04/22/2018] [Accepted: 04/24/2018] [Indexed: 12/13/2022] Open
Abstract
Eukaryotic elongation factor 2 kinase (eEF2K) is a calmodulin-related protein kinase which regulates protein translation. A484954 is an inhibitor of eEF2K. In the present study, we investigated the acute effects of A484954 on contractility of isolated blood vessels. Isometric contraction of rat isolated aorta and main branch of superior mesenteric artery (MA) was measured. Expression of an inward rectifier K+ (Kir) channel subtype mRNA and protein was examined. A484954 caused relaxation in endothelium-intact [E (+)] and -denuded [E (-)] aorta or MA precontracted with noradrenaline (NA). The relaxation was higher in MA than aorta. The relaxation was partially inhibited by a nitric oxide (NO) synthase inhibitor, NG-nitro-l-arginine methyl ester (300 μM) in E (+) MA. The relaxation was significantly smaller in MA precontracted with high K+ than NA. The A484954-induced relaxation was significantly inhibited by a Kir channel blocker, BaCl2 (1 mM) compared with vehicle control in E (-) MA. Expression of Kir2.2 mRNA and protein was significantly higher in MA than aorta. We for the first time revealed that A484954 induces relaxation through opening smooth muscle Kir (Kir2.2) channel and through endothelium-derived NO in MA.
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Affiliation(s)
- Tomoko Kodama
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Kitasato University, Higashi 23 Bancho 35-1, Towada City, Aomori, 034-8628, Japan
| | - Muneyoshi Okada
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Kitasato University, Higashi 23 Bancho 35-1, Towada City, Aomori, 034-8628, Japan
| | - Hideyuki Yamawaki
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Kitasato University, Higashi 23 Bancho 35-1, Towada City, Aomori, 034-8628, Japan.
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Zhou H, Fu B, Xu B, Mi X, Li G, Ma C, Xie J, Li J, Wang Z. Rosmarinic Acid Alleviates the Endothelial Dysfunction Induced by Hydrogen Peroxide in Rat Aortic Rings via Activation of AMPK. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:7091904. [PMID: 28883905 PMCID: PMC5572610 DOI: 10.1155/2017/7091904] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 06/09/2017] [Accepted: 06/20/2017] [Indexed: 12/21/2022]
Abstract
Endothelial dysfunction is the key player in the development and progression of vascular events. Oxidative stress is involved in endothelial injury. Rosmarinic acid (RA) is a natural polyphenol with antioxidative, antiapoptotic, and anti-inflammatory properties. The present study investigates the protective effect of RA on endothelial dysfunction induced by hydrogen peroxide (H2O2). Compared with endothelium-denuded aortic rings, the endothelium significantly alleviated the decrease of vasoconstrictive reactivity to PE and KCl induced by H2O2. H2O2 pretreatment significantly injured the vasodilative reactivity to ACh in endothelium-intact aortic rings in a concentration-dependent manner. RA individual pretreatment had no obvious effect on the vasoconstrictive reaction to PE and KCl, while its cotreatment obviously mitigated the endothelium-dependent relaxation impairments and the oxidative stress induced by H2O2. The RA cotreatment reversed the downregulation of AMPK and eNOS phosphorylation induced by H2O2 in HAEC cells. The pretreatment with the inhibitors of AMPK (compound C) and eNOS (L-NAME) wiped off RA's beneficial effects. All these results demonstrated that RA attenuated the endothelial dysfunction induced by oxidative stress by activating the AMPK/eNOS pathway.
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Affiliation(s)
- Hui Zhou
- Center for Mitochondria and Healthy Aging, College of Life Sciences, Yantai University, Yantai 264005, China
| | - Baocai Fu
- Intensive Care Unit, Yantaishan Hospital, Yantai 264001, China
| | - Bo Xu
- Center for Mitochondria and Healthy Aging, College of Life Sciences, Yantai University, Yantai 264005, China
| | - Xiangquan Mi
- School of Medicine, Shihezi University, Shihezi 832002, China
| | - Gang Li
- Center for Mitochondria and Healthy Aging, College of Life Sciences, Yantai University, Yantai 264005, China
| | - Chengjun Ma
- Center for Mitochondria and Healthy Aging, College of Life Sciences, Yantai University, Yantai 264005, China
| | - Jianxin Xie
- School of Medicine, Shihezi University, Shihezi 832002, China
| | - Ji Li
- Center for Mitochondria and Healthy Aging, College of Life Sciences, Yantai University, Yantai 264005, China
| | - Zhenhua Wang
- Center for Mitochondria and Healthy Aging, College of Life Sciences, Yantai University, Yantai 264005, China
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Bełtowski J. Role of progranulin in the regulation of vascular tone: (patho)physiological implications. Acta Physiol (Oxf) 2017; 219:706-708. [PMID: 27607846 DOI: 10.1111/apha.12799] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- J. Bełtowski
- Department of Pathophysiology; Medical University; Lublin Poland
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