Abstract：
:While brain-derived neurotrophic factor (BDNF) was previously reported to induce relaxation of conduit artery, whether the BDNF/TrkB (tropomyosin-related kinase) pathway is involved in the tone control of resistance arteries is not known. This study investigated TrkB receptors levels/localization and the vasomotor effect of the TrkB receptor agonist LM22A-4 in isolated third-order mesenteric arteries from rats. Immunostaining revealed the presence of both full-length and truncated TrkB receptors, especially at the endothelial level. By using wire myography, LM22A-4 induced vascular relaxation that was significantly decreased by cyclotraxin B as a non-competitive TrkB antagonist and fully prevented by endothelium removal. Inhibitors of NO, EDHF, PGI2 production and the PI3K/Akt pathways separately reduced LM22A-4 induced-relaxation. By contrast, inhibition of Raf/MEK, PLCγ and CaM/CaMKII pathways did not change the relaxant effect of LM22A-4. Interestingly, BDNF also induced an endothelium and TrkB-dependent relaxation. These results indicate that endothelial TrkB activation results in the relaxation of resistance vessels via PI3K/Akt-induced eNOS phosphorylation and production of EDHF and PGI2. These data are consistent with the contribution of the endothelial BDNF/TrkB pathway to the regulation of peripheral vascular tone. They also validate the use of LM22A-4 as a reliable pharmacological agent for studying the vascular effect of BDNF.
journal_name
Vascul Pharmacoljournal_title
Vascular pharmacologyauthors
Totoson P,Pedard M,Marie C,Demougeot Cdoi
10.1016/j.vph.2018.02.005subject
Has Abstractpub_date
2018-07-01 00:00:00pages
46-53eissn
1537-1891issn
1879-3649pii
S1537-1891(17)30239-2journal_volume
106pub_type
杂志文章abstract：BACKGROUND:Macrophages play a central role in atherosclerosis development and progression, hence, targeting macrophage activity is considered an attractive therapeutic. Recently, we documented nanomedicinal delivery of the anti-inflammatory compound prednisolone to atherosclerotic plaque macrophages in patients, which ...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2016.04.006
更新日期：2016-07-01 00:00:00
abstract：BACKGROUND:Immunosuppressive agents are at the forefront of preventing organ rejection after transplantation. However, their effects on vascular smooth muscle cell-mediated intimal hyperplasia that occurs in post-transplant coronary artery disease are less well known. METHODS AND RESULTS:We investigated the in vitro e...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2004.10.002
更新日期：2004-05-01 00:00:00
abstract：:Bemiparin is a low molecular weight heparin (LMWH) indicated for the acute treatment of deep vein thrombosis with or without pulmonary embolism, for the prophylaxis of venous thromboembolism in surgical and non-surgical patients and for the prevention of clotting in the extracorporeal circuit during hemodialysis. Due ...
journal_title：Vascular pharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.vph.2014.03.001
更新日期：2014-07-01 00:00:00
abstract：:The aim of this study was to investigate the relation between endothelial dysfunction and aspirin response in a young healthy population (102 men aged 18-40). Initial concentrations of the NO pathway metabolites (ADMA, l-arginine, SDMA), cardiovascular risk markers, oxidative stress markers (MDA, thiol index), sICAM1,...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2015.02.001
更新日期：2015-04-01 00:00:00
abstract：OBJECTIVES:This study examined the role of Na+/K+-ATPase in the vasodilator actions of nitric oxide (NO), S-nitrosothiols and the endothelium-dependent agonist, acetylcholine. METHODS:The vasodilator responses elicited by intravenous injections of (i) the NO-donors, sodium nitroprusside and MAHMA NONOate, (ii) the S-n...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2006.06.008
更新日期：2006-12-01 00:00:00
abstract：:The purpose of this study was to determine if P-selectin, an adhesion molecule involved in the transendothelial movement of leukocytes, might also have a direct influence on the function of cells that come into contact with it. Human peripheral blood mononuclear cells were incubated on immobilized P-selectin or a cont...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2005.11.002
更新日期：2006-03-01 00:00:00
abstract：BACKGROUND:Antitumor activity of paclitaxel is based on promotion of abnormal microtubule (MT) assembly but it is also considered to have significant pro-inflammatory and anti-angiogenic effects in vivo and thus may cause vascular dysfunction. METHODS:We studied 27 women treated with paclitaxel-containing combinations...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2010.05.002
更新日期：2010-09-01 00:00:00
abstract：:Ion channels control electrical excitability in living cells. In mammalian heart, the opposing actions of Na(+) and Ca(2+) ion influx, and K(+) ion efflux, through cardiac ion channels determine the morphology and duration of action potentials in cardiac myocytes, thus controlling the heartbeat. The last decade has se...
journal_title：Vascular pharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.vph.2005.07.013
更新日期：2006-02-01 00:00:00
abstract：:A large number of studies utilize animal models to investigate therapeutic angiogenesis. However, the lack of a standardized experimental model leaves the comparison of different studies problematic. To establish a reference model of prolonged moderate tissue ischemia, we created unilateral hind limb ischemia in athym...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2009.07.001
更新日期：2009-10-01 00:00:00
abstract：:Angiogenesis consists in the growth of new blood vessels from pre-existing ones. Although anti-angiogenesis interventions have been shown to have therapeutic properties in human diseases such as cancer, their effect is only partial and the identification of novel modulators of angiogenesis is warranted. Recently, we r...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2011.04.001
更新日期：2011-07-01 00:00:00
abstract：:The antiplatelet and antithrombotic activities of a newly synthesized CP201, 2-(3,5-di-tert-butyl-4-hydroxyl)-3-chloro-1,4-naphthoquinone on human platelet aggregation in vitro and murine pulmonary thrombosis in vivo were examined. In addition, the antiplatelet activity of CP201 involved in calcium-signaling cascade w...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2004.04.001
更新日期：2004-02-01 00:00:00
abstract：:We have previously reported that prolonged exposure of porcine coronary arteries to adenosine agonists upregulates protein kinase C (PKC) through the activation of adenosine A1 receptor-coupled to pertussis toxin sensitive G-protein(s) [Am. J. Physiol. 264 (1993) H1465; Am. J. Physiol. 269 (1995) H1619]. The mechanism...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/s1537-1891(02)00307-5
更新日期：2002-07-01 00:00:00
abstract：:Excessive iron can generate reactive oxygen species (ROS), leading to oxidative stress that is closely associated with cardiovascular dysfunction. Iron overload was induced in male ICR mice by injection of iron sucrose (10mg/kg/day) for eight weeks. Iron overload was evidenced by increased serum iron indices. The mice...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2016.10.001
更新日期：2016-12-01 00:00:00
abstract：:To investigate mechanisms of protective effects of fenofibrate on the diabetic kidney, male Wistar rats were divided into control, untreated diabetes, and fenofibrate-treated (32 mg kg(-1) d(-1), 8 weeks) diabetes groups. Diabetes induced by streptozotocin (25 mg/kg) and a high-fat diet was characterized by the disord...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2006.01.004
更新日期：2006-05-01 00:00:00
abstract：AIM:Selenium, a trace element involved in important enzymatic activities inside the body, has protective effects against cardiovascular diseases including atherosclerosis. The safe dose of selenium in the organism is very narrow, limiting the supplementation of selenium in diet. The aim of this study is to explore whet...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2019.01.005
更新日期：2019-04-01 00:00:00
abstract：:Poorly controlled diabetes in pregnancy, characterized by hypo- and hyperglycemia, is associated with adverse outcomes. We hypothesized that aberrant glucose levels affect vascular function in pregnancy. The effects of glucose concentration on constriction and endothelium-dependent relaxation in uterine arteries of no...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2006.09.001
更新日期：2007-02-01 00:00:00
abstract：:We recently demonstrated that lipoic acid suppresses endotoxin-stimulated expression of inducible nitric oxide synthase and nitric oxide production in mouse macrophages. In this study, we tested whether lipoic acid suppresses these inflammatory mediators in the lungs of rats. Rats were assigned to receive either no sp...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2005.08.005
更新日期：2005-12-01 00:00:00
abstract：:Results of our previous studies have suggested that enhanced generation of superoxide (O2(-)) may contribute to the pathophysiology of hypertension in Ren-2 transgenic rats (TGR). The present study was performed to evaluate in TGR the effects of chronic treatment with the O2(-) scavenger tempol and the antioxidant apo...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2009.06.001
更新日期：2009-08-01 00:00:00
abstract：:Venous and arterial walls are responsive to sympathetic system and circulating substances, nevertheless, very few is known about the venous blood flow regulation simultaneously to arterial vascular beds. In this study, we compared the venous and arterial blood flow regulation in visceral and muscular beds upon injecti...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2017.09.007
更新日期：2017-12-01 00:00:00
abstract：OBJECTIVE:In patients with familial combined hyperlipidemia (FCHL), without metabolic syndrome (MS), occurrence of non-alcoholic fatty liver disease (NAFLD) is related to a specific pro-inflammatory profile, influenced by genetic traits, involved in oxidative stress and adipokine secretion. Among FCHL or MS patients, h...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2015.04.004
更新日期：2015-09-01 00:00:00
abstract：:Upon myocardial infarction (MI) immune system becomes activated by extensive necrosis of cardiomyocytes releasing intracellular molecules called damage-associated molecular patterns. Overactive and prolonged immune responses are likely to be responsible for heart failure development and progression in patients survivi...
journal_title：Vascular pharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.vph.2018.08.011
更新日期：2019-01-01 00:00:00
abstract：:Propranolol is a non-selective beta-adrenergic receptor blocker used in the treatment of cardiovascular diseases and migraine prophylaxis. Although it has been shown that propranolol dilates the peripheral arteries of rat, its action in the central nervous system vasculature has not been investigated. In this study, t...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2012.12.004
更新日期：2013-04-01 00:00:00
abstract：:Four main vascular effects of hydrogen peroxide (H2O2) were studied in intact and rubbed aortic rings from WKY rats. In rings partially precontracted with phenylephrine: 1-30 microM H2O2 induced an increase of tone, 100 microM H2O2 produced a transient contraction followed by a fast-developing endothelium-independent ...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2005.06.001
更新日期：2005-08-01 00:00:00
abstract：:Successful drug delivery to the central nervous system (CNS) is highly dependent on DMPK as well as physicochemical properties and it is therefore important to characterise these properties and take them into account when designing chemical lead series that act at CNS targets. Since the drug discovery/development proc...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/s1537-1891(02)00203-3
更新日期：2002-06-01 00:00:00
abstract：RATIONALE:We examined the role of Jak2 kinase phosphorylation in the development of pressure overload hypertrophy in mice subjected to transverse aortic constriction (TAC) and treated with tyrphostin AG490, a pharmacological inhibitor of Jak2. METHODS:Control mice (sham), subjected to TAC for 15 days (TAC) or to TAC a...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2006.05.006
更新日期：2006-12-01 00:00:00
abstract：:We previously showed that endothelin A (ETA) receptor antagonist BQ-123 partially inhibited cyclopiazonic acid (CPA)-enhanced endothelin-1 (ET-1)-induced contractions suggesting enhancement of ETA receptor internalization in caveolar structures by sarco/endoplasmic reticulum Ca+2 ATPase (SERCA) blockade. Since seroton...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2014.03.008
更新日期：2014-05-01 00:00:00
abstract：:Hypercholesterolemia, is a prominent risk factor for cardiovascular disease (CVD). Undestanding of the biochemical mechanisms that regulate the expression of the low density lipoproteins receptor (LDLR) and the hepatic clearance of LDL cholesterol (LDL-C) paved the way to the statin therapy as the gold standard for CV...
journal_title：Vascular pharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.vph.2014.05.011
更新日期：2014-08-01 00:00:00
abstract：:MicroRNAs (miRNAs) have emerged as crucial players regulating the magnitude of gene expression in a variety of organisms. This class of short (22 nucleotides) noncoding RNA molecules have been shown to participate in almost every cellular process investigated so far, and their deregulation is observed in different hum...
journal_title：Vascular pharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.vph.2011.07.004
更新日期：2011-10-01 00:00:00
abstract：:Hyperhomocysteinemia (HHcy) is a metabolic disorder marked by an excess amount of the amino acid homocysteine (Hcy) in the blood stream. Hcy is a H(2)S precursor-formed from the metabolism of methionine. Elevated Hcy levels have been associated with higher blood pressure. However, the precise contribution of H(2)S to ...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2010.05.004
更新日期：2010-09-01 00:00:00
abstract：:Despite a large number of studies, the mechanism by which 3',5'-cyclic monophosphate (cAMP) induces vasorelaxation is not fully understood. The comparison between results obtained in different vessels or species has often been the source of conflicting reports. In order to shed more light onto this mechanism, we studi...
journal_title：Vascular pharmacology
pub_type： 杂志文章
doi：10.1016/j.vph.2012.08.007
更新日期：2013-01-01 00:00:00
