Abstract:
AIMS:Cathepsin-L (CTSL) is a member of the lysozomal cysteine protease family, which participates in remodelling of various tissues. Herein, we sought to examine the potential regulation of CTSL in cardiac remodelling post-infarction. METHODS AND RESULTS:Experimental myocardial infarction (MI) was created in CTSL-deficient (Ctsl(-/-)) mice (B6 × FSB/GnEi a/a Ctsl(fs)/J) and wild-type littermates (Ctsl(+/+)) by left coronary artery ligation. At days 3, 7, 14, and 28 post-MI, we monitored survival rate and evaluated cardiac function, morphology, and molecular endpoints of repair and remodelling. Survival was 56% in Ctsl(-/-) mice in contrast to 80% (P < 0.05) in Ctsl(+/+) mice post-MI by day 28. The Ctsl(-/-) mice exhibited greater scar dilatation, wall thinning, and worse cardiac dysfunction when compared with Ctsl(+/+) mice. Cardiac matrix metallopeptidase-9 (MMP-9) activity was also diminished, and c-kit-positive cells, natural killer cells, fibrocytes, and monocytes mobilized to peripheral blood and deposited to the infarcted myocardium were significantly decreased in Ctsl(-/-) mice. Furthermore, the local inflammatory response, and granulocyte-colony stimulating factor, stem cell factor (SCF), and stromal cell-derived factor-1 (SDF-1α) expression, as well as cell proliferation, revascularization, and myofibroblast deposition were significantly decreased in Ctsl(-/-) mice compared with Ctsl(+/+) mice. CONCLUSION:Our data indicate that CTSL regulates cardiac repair and remodelling post-MI through a mechanism with multiple pathways.
journal_name
Cardiovasc Resjournal_title
Cardiovascular researchauthors
Sun M,Chen M,Liu Y,Fukuoka M,Zhou K,Li G,Dawood F,Gramolini A,Liu PPdoi
10.1093/cvr/cvq328subject
Has Abstractpub_date
2011-02-01 00:00:00pages
374-83issue
2eissn
0008-6363issn
1755-3245pii
cvq328journal_volume
89pub_type
杂志文章abstract::We studied the effects of intracoronary vasopressin on the relationship between pressure and flow in the coronary circulation of anaesthetised swine. In addition to measurements at control levels, diastolic pressure-flow relationships were constructed from steady-state points below a coronary pressure of 50 mmHg, wher...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/19.7.433
更新日期:1985-07-01 00:00:00
abstract:AIMS:Autonomic dysfunction can promote atrial fibrillation (AF) and results from AF-related remodelling. N-type Ca2+-channels (NTCCs) at sympathetic nerve terminals mediate Ca2+-entry that triggers neurotransmitter release. AF-associated remodelling plays an important role in AF pathophysiology but the effects of NTCC ...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/cvz136
更新日期:2019-12-01 00:00:00
abstract::The cardiac SR Ca(2+)-ATPase (SERCA2a) regulates intracellular Ca(2+)-handling and thus, plays a crucial role in initiating cardiac contraction and relaxation. SERCA2a may be modulated through its accessory phosphoprotein phospholamban or by direct phosphorylation through Ca(2+)/calmodulin dependent protein kinase II ...
journal_title:Cardiovascular research
pub_type: 杂志文章,评审
doi:10.1016/s0008-6363(02)00694-6
更新日期:2003-01-01 00:00:00
abstract::Myocardial ischaemia/reperfusion (I/R)-induced remodelling generally includes cell death (necrosis and apoptosis), myocyte hypertrophy, angiogenesis, cardiac fibrosis, and myocardial dysfunction. It is becoming increasingly clear that microRNAs (miRNAs or miRs), a group of highly conserved small (∼18-24 nucleotide) no...
journal_title:Cardiovascular research
pub_type: 杂志文章,评审
doi:10.1093/cvr/cvr291
更新日期:2012-05-01 00:00:00
abstract:AIMS:Free fatty acids induce apoptosis in cardiomyocytes, which is implicated in lipotoxic cardiomyopathy. However, the underlying mechanisms remain not fully understood. MicroRNAs (miRNAs) are non-coding small RNAs that control gene expression at the post-transcriptional level. Dysregulated miRNAs have been shown to b...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/cvr145
更新日期:2011-10-01 00:00:00
abstract::Labetolol, which blocks both alpha and beta-adrenoceptors, was found to have direct actions on cardiac muscle which could themselves be antiarrhythmic. It depressed the maximum rate of depolarisation, and reduced conduction velocity, in atrial and ventricular muscle and in Purkinje cells, implying restriction of fast ...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/16.5.233
更新日期:1982-05-01 00:00:00
abstract:OBJECTIVE:Cholinergic vasodilation has been thought to play little if any role in the regulation of blood pressure in humans. Autonomic denervation potentiates the vasoconstriction evoked by nitric oxide synthase inhibition in humans, but the mechanism is unclear. We hypothesized that this may be related to loss of neu...
journal_title:Cardiovascular research
pub_type: 临床试验,杂志文章
doi:10.1016/s0008-6363(01)00325-x
更新日期:2001-09-01 00:00:00
abstract::Sprouting angiogenesis is an invasive process that involves proteolytic activities required for the degradation of the endothelial basement membrane, cell migration with removal of obstructing matrix proteins, and generation of space in the matrix to allow endothelial cells to form a proper lumen. In the last decade i...
journal_title:Cardiovascular research
pub_type: 杂志文章,评审
doi:10.1093/cvr/cvm102
更新日期:2008-05-01 00:00:00
abstract::The second messenger cyclic guanosine 3'5' monophosphate (cGMP) and its downstream effector protein kinase G (PKG) have been discovered more than 40 years ago. In vessels, PKG1 induces smooth muscle relaxation in response to nitric oxide signalling and thus lowers systemic and pulmonary blood pressure. In platelets, P...
journal_title:Cardiovascular research
pub_type: 杂志文章,评审
doi:10.1093/cvr/cvw107
更新日期:2016-07-15 00:00:00
abstract:OBJECTIVE:Evidence suggests important relationships among chronic inflammatory processes, endothelial dysfunction, hypertension and target organ damage. The present study examined the effects of chronic treatment with an anti-inflammatory p38 mitogen-activated protein kinase (MAPK) inhibitor (SB-239063AN) in the N(omeg...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/j.cardiores.2004.12.021
更新日期:2005-04-01 00:00:00
abstract:OBJECTIVE:The mechanosensitive nonselective cation channel (NSC(MS)) and endothelin-1 (ET-1) play critical roles in the regulation of vascular tone. This study was undertaken to investigate the effect of ET-1 on NSC(MS) and on the myogenic response of arteries. METHODS:Cell-attached patch-clamp techniques were applied...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/j.cardiores.2007.06.021
更新日期:2007-11-01 00:00:00
abstract:OBJECTIVE:The aim was to test the hypothesis that in normal humans angiotensin II would stimulate local release of noradrenaline under basal conditions or during a sympathetic stimulus provided by lower body negative pressure (LBNP). METHODS:Nine healthy volunteers received intra-arterial infusions of angiotensin II, ...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/28.5.663
更新日期:1994-05-01 00:00:00
abstract:OBJECTIVE:Increased pulse pressure has been observed in aging subjects, but the impact on the structure and reactivity of small arteries has been scarcely evaluated. METHODS:This study presents the modifications of vascular structure and function observed in female rats of 5, 18 and 32 months of age, and their relatio...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/s0008-6363(97)00225-3
更新日期:1998-01-01 00:00:00
abstract:OBJECTIVE:The aim was to further characterise an experimental model of preconditioning of isolated rabbit cardiomyocytes and to determine the role of adenosine receptor subtypes in initiation of the protective response. METHODS:Isolated myocytes were subjected to 5 min preincubation in the presence or absence of gluco...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/28.7.1049
更新日期:1994-07-01 00:00:00
abstract:AIMS:Human C-peptide has a beneficial effect on the prevention of diabetic neuropathy, nephropathy, and vascular complications; however, its role in protection against increased vascular permeability in diabetes remains unclear. Our purpose was to explore the potential protective role of C-peptide against microvascular...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/cvt238
更新日期:2014-01-01 00:00:00
abstract:AIMS:The effects of serelaxin, a recombinant form of human relaxin-2 peptide, on vascular function in the coronary microvascular and systemic macrovascular circulation remain largely unknown. This mechanistic, clinical study assessed the effects of serelaxin on myocardial perfusion, aortic stiffness, and safety in pati...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/cvz345
更新日期:2021-01-01 00:00:00
abstract:OBJECTIVES:Plasma endothelin (ET) concentrations are increased in heart failure. The aims of the present study were to investigate to what extent cardiac ET mRNA expression is induced in ischemic heart failure and whether there may be compensatory downregulation of myocardial mRNA levels for the ETA and ETB receptor su...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/s0008-6363(96)00266-0
更新日期:1997-03-01 00:00:00
abstract:Aims:Endothelial hyperpermeability exacerbates multiple organ damage during inflammation or infection. The endothelial glycocalyx, a protective matrix covering the luminal surface of endothelial cells (ECs), undergoes enzymatic shedding during inflammation, contributing to barrier hyperpermeability. A disintegrin and m...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/cvy167
更新日期:2018-11-01 00:00:00
abstract:OBJECTIVES:M cells have been described in many mammalian species. They are thought to be relevant for the genesis of long QT intervals, afterdepolarizations and for dispersion in action potential duration and in repolarization time. Their role in the human heart is subject to debate. METHODS:We simulated action potent...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/j.cardiores.2004.02.016
更新日期:2004-05-01 00:00:00
abstract:OBJECTIVE:Preexposure of macrophages to oxidized low-density lipoprotein (oxLDL) attenuates formation of reactive oxygen species (ROS) upon stimulation with phorbol 12-myristate 13-acetate (PMA) or acute exposure to oxLDL. We examined whether attenuation of the oxidative burst is attributed to down-regulation of protei...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/j.cardiores.2006.05.023
更新日期:2006-08-01 00:00:00
abstract::Cardiomyocytes express a surprisingly large number of potassium channel types. The primary physiological functions of the currents conducted by these channels are to maintain the resting membrane potential and mediate action potential repolarization under basal conditions and in response to changes in the concentratio...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/cvaa068
更新日期:2020-07-15 00:00:00
abstract::An investigation of changes in the Mg2+ -dependent, Na+ -K+ -stimulated sarcolemmal ATPase and of intracellular electrolytes in the left failing heart due to pressure overload (aortic banding) was carried out in dogs. There was no change in the sarcolemmal Mg2+ -ATPase of the left or right ventricle for the whole dura...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/13.2.95
更新日期:1979-02-01 00:00:00
abstract:OBJECTIVE:Anisotropic conduction characteristics, which may be expressed as the ratio of conduction velocities in the longitudinal (Vlong) and transverse (Vtrans) fibre directions, have been shown to stabilise reentry and favour the induction of sustained, uniform ventricular tachycardia. The aim of this study was to i...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/s0008-6363(96)88593-2
更新日期:1995-03-01 00:00:00
abstract::One of the obstacles to a better understanding of the pathogenesis of human cardiomyopathies has been poor availability of heart-tissue samples at early stages of disease development. This has possibly changed by the advent of patient-derived induced pluripotent stem cell (hiPSC) from which cardiomyocytes can be deriv...
journal_title:Cardiovascular research
pub_type: 杂志文章,评审
doi:10.1093/cvr/cvv017
更新日期:2015-04-01 00:00:00
abstract:STUDY OBJECTIVE:The aim was to quantify the changes in placental blood flow and combined ventricular output with gestational age in normal human fetuses to determine the percentage of total cardiac output that placental blood flow represented, and whether this changed with age. DESIGN:Two dimensional echocardiographic...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/25.7.603
更新日期:1991-07-01 00:00:00
abstract::Although it is generally believed that the beneficial effect of loop diuretics is the result of a rapid increase in diuresis, substantial evidence, from a large number of in vitro and in vivo experiments, has accumulated showing that administration of furosemide causes direct vascular effects, which probably contribut...
journal_title:Cardiovascular research
pub_type: 杂志文章,评审
doi:10.1016/s0008-6363(96)00134-4
更新日期:1996-12-01 00:00:00
abstract:AIMS:The metabolic syndrome (MS) leads to myocardial fibrosis (MF) and diastolic dysfunction. Statins have proven beneficial effects in MS, but their impact on cardiac remodelling is uncertain. We examined the effects and mechanisms of chronic statin treatment on cardiac remodelling, e.g. fibrosis and diastolic propert...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/cvt070
更新日期:2013-07-01 00:00:00
abstract:OBJECTIVE:Heart failure is associated with reduced function of sarcoplasmic reticulum (SR) Ca2+-ATPase (SERCA2a) but increased function of sarcolemmal Na+/Ca2+ exchanger (NCX), leading to decreased SR Ca2+ content and loss of frequency-potentiation of contractile force. We reported that SERCA2a-overexpression in transg...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/j.cardiores.2005.05.006
更新日期:2005-09-01 00:00:00
abstract:OBJECTIVE:Smooth muscle cell proliferation and migration are the predominant responses to intimal and medial injury after percutaneous transluminal coronary angioplasty. The in vivo inhibitory effect of heparin on these responses is well documented. To test the hypothesis that the antiproliferative effect of heparin in...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1093/cvr/27.7.1209
更新日期:1993-07-01 00:00:00
abstract:OBJECTIVE:A circadian rhythm of blood pressure has been demonstrated both in subjects who are physically active during the day and in those confined to bed. The study of the circadian rhythm of arterial flow and peripheral resistance, on the other hand, is limited to pioneer experiments. This paper is aimed at demonstr...
journal_title:Cardiovascular research
pub_type: 杂志文章
doi:10.1016/s0008-6363(98)00237-5
更新日期:1999-01-01 00:00:00