Abstract:
:Forces associated with blood flow are crucial not only for blood vessel development but also for regulation of vascular pathology. Although there have been many studies characterizing the responses to mechanical stimuli, molecular mechanisms linking biological responses to mechanical forces remain unclear. Hic-5 (hydrogen peroxide-inducible clone-5) is a focal adhesion adaptor protein proposed as a candidate for a mediator of mechanotransduction. In the present study, we generated Hic-5-deficient mice by targeted mutation. Mice lacking Hic-5 are viable and fertile, and show no obvious histological abnormalities including vasculature. However, after wire injury of the femoral artery in Hic-5 deficient mice, histological recovery of arterial media was delayed due to enhanced apoptosis of vascular wall cells, whereas neointima formation was enhanced. Stretch-induced apoptosis was enhanced in cultured vascular smooth muscle cells (vascular SMCs) from Hic-5 deficient mice. Mechanical stress also induced the alteration of intracellular distribution of vinculin from focal adhesions to the whole cytoplasm in SMCs. Immunoelectron microscopic study of vascular SMCs from a wire-injured artery demonstrated that vinculin was dispersed in the nucleus and the cytoplasm in Hic-5-deficient mice whereas vinculin was localized mainly in the sub-plasma membrane region in wild type mice. Our findings indicate that Hic-5 may serve as a key regulator in mechanosensitive vascular remodeling.
journal_name
J Mol Cell Cardioljournal_title
Journal of molecular and cellular cardiologyauthors
Kim-Kaneyama JR,Takeda N,Sasai A,Miyazaki A,Sata M,Hirabayashi T,Shibanuma M,Yamada G,Nose Kdoi
10.1016/j.yjmcc.2010.09.024subject
Has Abstractpub_date
2011-01-01 00:00:00pages
77-86issue
1eissn
0022-2828issn
1095-8584pii
S0022-2828(10)00377-9journal_volume
50pub_type
杂志文章abstract::Various drugs are reported to prolong the QT-interval on the surface ECG, thereby increasing the risk of developing a potentially fatal arrhythmia known as Torsades de Pointes (TdP). TdP case reports for these drugs have often been associated with risk factors such as overdosing, concomitant drugs and/or existing path...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/j.yjmcc.2004.09.001
更新日期:2004-11-01 00:00:00
abstract::Ventricular hypertrophy is associated with an increase in action potential (AP) duration which is potentially arrhythmogenic. The implication of the Na-Ca exchange current (I(Na-Ca)) in the lengthening of the AP is controversial. The role of this current in the increased duration of the low plateau of the AP in hypert...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1006/jmcc.2000.1106
更新日期:2000-04-01 00:00:00
abstract::Lower heart rate is associated with better survival in patients with multiple organ dysfunction syndrome (MODS), a disease mostly caused by sepsis. The benefits of heart rate reduction by ivabradine during MODS are currently being investigated in the MODIfY clinical trial. Ivabradine is a selective inhibitor of the pa...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/j.yjmcc.2014.02.010
更新日期:2014-07-01 00:00:00
abstract::The interaction of verapamil and other phenylalkylamine calcium channel blockers with the 1,4-dihydropyridine receptor was examined. Studies characterizing the interaction and relationship between calcium channel blocking potency and binding affinity were performed in rat myocardium. The 1,4-dihydropyridines, nifedipi...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/s0022-2828(86)80010-4
更新日期:1986-09-01 00:00:00
abstract::The E2F4-p130 transcriptional repressor complex is a cell-cycle inhibitor in mitotic cells. However, the role of E2F4/p130 in differentiated cells is largely unknown. We investigated the role of E2F4/p130 in the regulation of apoptosis in postmitotic cardiomyocytes. Here we demonstrate that E2F4 can inhibit hypoxia-in...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/j.yjmcc.2012.09.004
更新日期:2012-12-01 00:00:00
abstract::Diabetic cardiomyopathy has been documented as an underlying etiology of heart failure (HF) among diabetics. Although oxidative stress has been proposed to contribute to diabetic cardiomyopathy, much of the evidence lacks specificity. Furthermore, whether alterations occur at the cardiac proteome level in diabetic car...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/j.yjmcc.2006.12.018
更新日期:2007-04-01 00:00:00
abstract::Application of ultrasound-mediated destruction of microbubbles (US + Bubble) to skeletal muscle creates capillary ruptures leading to leakage of the cell components. We studied whether US + Bubble combined with bone-marrow-derived mononuclear cells (BM-MNCs) infusion enables the targeted delivery of endothelial-lineag...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/j.yjmcc.2006.03.012
更新日期:2006-06-01 00:00:00
abstract::Interactions between platelets with injured vascular endothelium contribute to thrombotic occlusion. A murine monoclonal antibody [7E3 F(ab')2] to the platelet GPIIb/IIIa receptor complex was used to inhibit platelet aggregation in an experimental model of coronary artery thrombosis. Prevention of thrombotic occlusion...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/0022-2828(89)90650-0
更新日期:1989-04-01 00:00:00
abstract::The adult newt cardiac ventricular myocyte has been successfully placed in cell culture and has been shown to undergo in vitro DNA synthesis. Although several growth factors have been reported to increase DNA synthesis in cardiac myocytes in vitro, PDGF has not been reported to do so, but has been shown to be active i...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/0022-2828(92)91870-b
更新日期:1992-09-01 00:00:00
abstract::We tested the hypothesis that the early action potential shortening induced by hypoxia in perfused hearts is attributable to chloride currents activated or modulated by endogenous catecholamine release. Rabbit hearts perfused at 33 degrees C and paced at 2.5-2.8 Hz were used for membrane potential recordings with micr...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1006/jmcc.1996.0026
更新日期:1996-02-01 00:00:00
abstract::Recent improvements in survival from AIDS have been accompanied by an increased recognition of the potential importance of other manifestations of HIV infection, including cardiomyopathy. Mechanisms responsible for HIV cardiomyopathy are unknown, but may include direct effects of HIV proteins on the heart. We previous...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/j.yjmcc.2005.10.006
更新日期:2006-01-01 00:00:00
abstract::Growing evidence suggests that the beta1-adrenoceptor-directed autoimmune mechanism may play an important role in the pathogenesis of idiopathic dilated cardiomyopathy. The aim of this study is to further study the effect of specific immunoabsorption of anti-beta1-adrenoceptor autoantibodies on cardiac structure and f...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/j.yjmcc.2006.04.016
更新日期:2006-07-01 00:00:00
abstract:BACKGROUND:Cultured adult mouse and rat cardiomyocytes are the best and low-cost cell model for cardiac cellular physiology, pathology, drug toxicity screening, and intervention. The functions of mouse cardiomyocytes decline faster than rat cardiomyocytes in culture conditions. However, little is known about the differ...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/j.yjmcc.2019.09.006
更新日期:2019-11-01 00:00:00
abstract::The effects of variations in serum concentrations of potassium on the occurrence and severity of ischemia- and reperfusion-induced arrhythmias have been studied in conscious rats. Serum potassium concentrations were modified by maintaining rats on diets which varied in potassium concentration, by treatment with hydroc...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/0022-2828(92)93384-v
更新日期:1992-07-01 00:00:00
abstract:AIMS:The FDA-approved histone deacetylase (HDAC) inhibitor, suberoylanilide hydroxamic acid (SAHA, Vorinostat) has been shown to induce cardiomyocyte autophagy and blunt ischemia/reperfusion (I/R) injury when administered at the time of reperfusion. However, the precise mechanisms underlying the cardioprotective activi...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/j.yjmcc.2019.03.008
更新日期:2019-05-01 00:00:00
abstract::We made acute cardiac failure in excised cross-circulated canine hearts by a new coronary perfusion protocol consisting of Ca2+ free Tyrode perfusion for the first 10 min, high Ca2+ (16 mmol/l) Tyrode perfusion for the next 5 min, and normal Tyrode perfusion for the last 5 min interrupting blood cross circulation. Aft...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/0022-2828(95)90022-5
更新日期:1995-09-01 00:00:00
abstract::Although several studies have demonstrated that nitric oxide appears to be cardioprotective and endothelin-1 (ET-1) deleterious in myocardial ischemia/reperfusion injury, their interactions in the intact heart are unknown. Therefore, coronary effluent and interstitial fluid ("transudate") levels of ET-1 and cyclic GMP...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1006/jmcc.1997.0470
更新日期:1997-09-01 00:00:00
abstract:BACKGROUND:Dilated cardiomyopathy (DCM) could be caused by mutations in more than 40 different genes. However, the pathogenic impact of specific mutations is in most cases unknown complicating the genetic counseling of affected families. Therefore, functional studies could contribute to distinguish pathogenic mutations...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/j.yjmcc.2015.12.015
更新日期:2016-02-01 00:00:00
abstract:INTRODUCTION:Fibroblast activation protein α (FAP) is a membrane-bound serine protease expressed by activated fibroblasts during wound healing in the skin. Expression of FAP after myocardial infarction (MI) and potential effects on cardiac wound healing are largely unknown. METHODS:MI was induced in rats and FAP expre...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/j.yjmcc.2015.08.016
更新日期:2015-10-01 00:00:00
abstract::Atrial fibrosis has been strongly associated with the presence of heart diseases/arrhythmias, including congestive heart failure (CHF) and atrial fibrillation (AF). Inducibility of AF as a result of atrial fibrosis has been the subject of intense recent investigation since it is the most commonly encountered arrhythmi...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章,评审
doi:10.1016/j.yjmcc.2009.09.001
更新日期:2010-03-01 00:00:00
abstract::In this study, calcium overload during reperfusion and the severity of morphologically evident ischemic myocardial injury were compared in hypertrophied and normal hearts. Hypertrophied hearts isolated from rats where a clip had been placed on the proximal thoracic aorta for 6 weeks were compared to those from sham-op...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1006/jmcc.1994.1175
更新日期:1994-12-01 00:00:00
abstract::Almost 7 years have passed since the initial publication reporting that bone marrow cells regenerate infarcted myocardium. The subsequent years produced hundreds of investigations that ran the gamut of findings from validation to disproof. Undeterred by the concurrent debate, clinical trials ensued to test the safety ...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章,评审
doi:10.1016/j.yjmcc.2008.03.007
更新日期:2008-06-01 00:00:00
abstract::The heart contains many cell types; mechanical work is done by cardiomyocytes which do not divide but are terminally differentiated and capable of continuous protein synthesis and degradation. The steps in protein synthesis are (1) transport of amino acids into heart cells by a variety of cell-membrane carriers, (2) A...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章,评审
doi:10.1016/s0022-2828(84)80711-7
更新日期:1984-01-01 00:00:00
abstract::Activation of the antiogensin II, type 1 (AT1) receptor mediates the myocardial response to numerous hypertrophic stimuli. This study tested the hypothesis that 2-tetradecylglycidic acid (TDGA), an oxirane carboxylate inhibitor of mitochondrial carnitine plamitoyltransferase-1, induces myocardial hypertrophy via the A...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1006/jmcc.1999.0977
更新日期:1999-08-01 00:00:00
abstract::We studied post-extrasystolic potentiation (PESP) and frequency potentiation (FP) of human working myocardium isolated from the ventricles of 10 patients with end-stage heart failure (CHF) and 17 non-failing controls (CTL). The contractility index was peak isometric tension developed in vitro by trabeculae carneae (CT...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/0022-2828(90)90975-8
更新日期:1990-01-01 00:00:00
abstract::The relationship between reperfusion-induced arrhythmias and the size of the occluded zone was examined. The isolated perfuse rat heart was used because its negligible collateral flow maximizes susceptibility to arrhythmias and reduces variability. Ischemia lasting 10 min was followed by 10 min of reperfusion. A const...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/0022-2828(89)90828-6
更新日期:1989-06-01 00:00:00
abstract::Fibrillar collagens, essential for maintaining the structural integrity of the myocardium, are degraded by matrix metalloproteinase (MMP-1). In other tissues collagenolysis is an important component of wound healing. Here we examined collagen degradation in the myocardium after infarction. Collagenase activity, measur...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/s0022-2828(05)82390-9
更新日期:1995-06-01 00:00:00
abstract::Although captopril, an angiotensin-converting enzyme (ACE) inhibitor, has been shown to exert a beneficial effect on cardiac function in heart failure, its effect on the status of sarcoplasmic reticulum (SR) Ca(2+) transport in the failing heart has not been examined previously. In order to determine whether captopril...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1006/jmcc.1999.1000
更新日期:1999-09-01 00:00:00
abstract::Mouse embryonic stem cells (mESCs) differentiate into all cardiac phenotypes, and thus represent an important potential source for cardiac regenerative therapies. Here we characterize the molecular composition and functional properties of "funny" (f-) channels in mESC-derived pacemaker cells. Following differentiation...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/j.yjmcc.2008.12.001
更新日期:2009-03-01 00:00:00
abstract::Inhibition of I(K1) currents by adrenergic alpha(1) receptors has been observed in cardiomyocytes and has been linked to arrhythmogenesis in an animal model. Both PKC-dependent and PKC-independent pathways have been implied in this regulation. The underlying molecular mechanisms, however, have not been elucidated to d...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/j.yjmcc.2007.10.008
更新日期:2008-01-01 00:00:00