Abstract:
:Myocardial infarction (MI) provokes regional inflammation which facilitates the healing, whereas excessive inflammation leads to adverse cardiac remodelling. Our aim was to determine the role of macrophage migration inhibitory factor (MIF) in inflammation and cardiac remodelling following MI. Wild type (WT) or global MIF deficient (MIFKO) mice were subjected to coronary artery occlusion. Compared to WT mice, MIFKO mice had a significantly lower incidence of post-MI cardiac rupture (27% vs. 53%) and amelioration of cardiac remodelling. These were associated with suppressed myocardial leukocyte infiltration, inflammatory mediators' expression, and reduced activity of MMP-2, MMP-9, p38 and JNK MAPK. Infarct myocardium-derived or exogenous MIF mediated macrophage chemotaxis in vitro that was suppressed by inhibition of p38 MAPK or NF-κB. To further dissect the role of MIF derived from different cellular sources in post-MI cardiac remodelling, we generated chimeric mice with MIF deficiency either in bone marrow derived-cells (WT(KO)) or in somatic-cells (KO(WT)). Compared to WT and KO(WT) mice, WT(KO) mice had reduced rupture risk and ameliorated cardiac remodelling, associated with attenuated regional leukocyte infiltration and expression of inflammatory mediators. In contrast, KO(WT) mice had delayed healing and enhanced expression of M1 macrophage markers, but diminished expression of M2 markers during the early healing phase. In conclusion, global MIF deletion protects the heart from post-infarct cardiac rupture and remodelling through suppression of leukocyte infiltration and inflammation. Leukocyte-derived MIF promotes inflammatory responses after MI, whereas cardiac-derived MIF affects early but not ultimate healing process.
journal_name
J Mol Cell Cardioljournal_title
Journal of molecular and cellular cardiologyauthors
White DA,Su Y,Kanellakis P,Kiriazis H,Morand EF,Bucala R,Dart AM,Gao XM,Du XJdoi
10.1016/j.yjmcc.2014.01.015subject
Has Abstractpub_date
2014-04-01 00:00:00pages
32-42eissn
0022-2828issn
1095-8584pii
S0022-2828(14)00035-2journal_volume
69pub_type
杂志文章abstract::The modulating effects of Ca2+ on single K+ channel currents in canine heart sarcoplasmic reticulum were studied using a planar lipid bilayer technique. The open-state probability and the unitary open-state current both decreased gradually as the Ca2+ concentration was reduced from pCa 3 to pCa 7.5. Each single-channe...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1006/jmcc.1994.1022
更新日期:1994-02-01 00:00:00
abstract::Gender has recently been implicated as an important modulator of cardiovascular disease. However, it is not known how gender may specifically influence the Ca2+-handling deficits that characterize the depressed cardiac contractility of human heart failure. To elucidate the contributory role of gender to sarcoplasmic r...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1006/jmcc.2001.1394
更新日期:2001-07-01 00:00:00
abstract::The AT1 receptor (AT1R) mediates the manifold actions of angiotensin II in the cardiovascular system. This study probed the molecular mechanisms that link altered redox status to AT1R expression in cardiac fibroblasts. Real-time PCR and western blot analysis showed that H2O2 enhances AT1R mRNA and protein expression v...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/j.yjmcc.2016.05.010
更新日期:2016-08-01 00:00:00
abstract::PICOT (PKC-interacting cousin of thioredoxin) was previously shown to inhibit the development of cardiac hypertrophy, concomitant with an increase in cardiomyocyte contractility. To explore the physiological function of PICOT in the hearts, we generated a PICOT-deficient mouse line by using a gene trap approach. PICOT...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/j.yjmcc.2008.09.124
更新日期:2008-12-01 00:00:00
abstract::The cardiac voltage-gated Na(+) channel, Na(V)1.5, is responsible for the upstroke of the action potential in cardiomyocytes and for efficient propagation of the electrical impulse in the myocardium. Even subtle alterations of Na(V)1.5 function, as caused by mutations in its gene SCN5A, may lead to many different arrh...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章,评审
doi:10.1016/j.yjmcc.2015.02.013
更新日期:2015-05-01 00:00:00
abstract::To test a prediction that trans-sarcolemmal lactate movement is carrier mediated, 14C-labelled lactate or pyruvate and 3H-mannitol were transiently infused (2 min) into aerobically perfused rat hearts that had been depleted of intracellular monocarboxylates by a 30 min pre-perfusion in the absence of substrates. Uptak...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/s0022-2828(85)80079-1
更新日期:1985-10-01 00:00:00
abstract::(1) The effects of norepinephrine on protein phosphorylation in isolated rat cardiac ventricular myocytes were determined by autoradiography on 32P-labelled proteins separated by electrophoresis; (2) In cells from young adult rats (6 months old) there was a marked increase due to norepinephrine (10(-8) to 10(-4) M) in...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/0022-2828(89)90678-0
更新日期:1989-12-01 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::Diabetes and hypertension both produce myocardial dysfunction that accelerates cardiovascular morbidity and mortality. Coexistence of the two often results in a more severe cardiomyopathy than either process alone. The purpose of this study was to characterize the contractile function of diabetic hypertensive cardiomy...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1006/jmcc.2001.1431
更新日期:2001-09-01 00:00:00
abstract::E2Fs are a family of transcription factors that regulate proliferation, differentiation and apoptosis in many cell types. E2F-1 is the prototypical E2F and the family member that has most often been implicated in also mediating apoptosis. To better understand the role of E2F-1 in mediating cardiomyocyte injury we init...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/j.yjmcc.2011.09.012
更新日期:2011-12-01 00:00:00
abstract::This study describes the effect of oxygen radicals on the ultrastructure of the isolated Langendorff-perfused rat heart. Oxygen radicals were enzymatically generated by xanthine oxidase (0.025 U/ml) and hypoxanthine (0.96 mM). Hearts were perfusion-fixed for electron microscopy and stereological technique was performe...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/s0022-2828(87)80583-7
更新日期:1987-04-01 00:00:00
abstract::Cardiac myocytes in rat hearts lose their ability to undergo cytokinesis between day 3 and day 4, resulting in the formation of binucleated myocytes. Failure in the formation of the actin-myosin contractile ring could cause cardiac myocytes to be defective in cytokinesis. Enzymatically isolated cardiac myocytes from 2...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1006/jmcc.1997.0381
更新日期:1997-06-01 00:00:00
abstract::Our previous work in cultured cells has shown that the maintenance of mitochondrial Ca(2+) homeostasis is essential for cell survival, and that the anti-apoptotic protein Bcl-2 is able to maintain a threshold level of mitochondrial Ca(2+) by the inhibition of permeability transition. To test whether Bcl-2 also affects...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1006/jmcc.2001.1476
更新日期:2001-12-01 00:00:00
abstract::Inflammatory mediators have been implicated as a cause of reversible myocardial depression in septic shock. We previously reported that the release of lysozyme-c (Lmz-S) from leukocytes from the spleen or other organs contributes to myocardial dysfunction in Escherichia coli septic shock in dogs by binding to a cardia...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/j.yjmcc.2005.06.009
更新日期:2005-10-01 00:00:00
abstract::The binding properties of [3H]U69593, a selective k-ligand, in rat heart homogenates were characterized by direct and displacement receptor binding assays. It was found that there are substantial specific [3H]U69593 binding sites in the rat heart. They were saturable, reversible and stereospecific. Both association an...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/0022-2828(91)90086-2
更新日期:1991-11-01 00:00:00
abstract:BACKGROUND:Fabry disease is an X-linked disease caused by mutations in α-galactosidase A (GLA); these mutations result in the accumulation of its substrates, mainly globotriaosylceramide (Gb3). The accumulation of glycosphingolipids induces pathogenic changes in various organs, including the heart, and Fabry cardiomyop...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/j.yjmcc.2018.07.246
更新日期:2018-08-01 00:00:00
abstract::In recently published studies, we show that angiotensin II (AII) generated from an engineered rat angiotensinogen cDNA, and maintained intracellularly, is growth stimulatory for a rat hepatoma cell line. In the present study, we report that co-expression of AII fused to cyan fluorescent protein (ECFP/AII) and angioten...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/j.yjmcc.2003.09.021
更新日期:2004-01-01 00:00:00
abstract::Thromboxane A2 (TXA2) and prostaglandin H2 (PGH2) induce platelet aggregation and are potent vasoconstrictors, and they have been implicated in coronary vasospasm and myocardial infarction. The TXA2 mimetic [1S-(1 alpha, 2 beta (5Z), 3 alpha (1E,3S*), 4 alpha)]-7-[3-(3-hydroxy-4-(4'- iodophenoxy)-1-butenyl)-7-oxabicyc...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1006/jmcc.1994.1109
更新日期:1994-07-01 00:00:00
abstract::Short duration exposure to cellular stresses have been shown to activate p38 mitogen-activated protein kinase (MAPK) in cultured rat ventricular cardiomyocytes and isolated perfused hearts; however, effects of chronic stress on p38 MAPK are not well understood. This study determined whether alterations in the p38 MAPK...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1006/jmcc.2001.1415
更新日期:2001-08-01 00:00:00
abstract:BACKGROUND:Cardiac injury, as measured by troponin elevation, has been reported among hospitalized coronavirus disease 2019 (COVID-19) patients and portends a poor prognosis. However, how the dynamics of troponin elevation interplay with inflammation and coagulation biomarkers over time is unknown. We assessed longitud...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/j.yjmcc.2020.08.008
更新日期:2020-10-01 00:00:00
abstract:AIMS:One unaddressed aspect of healing after myocardial infarction (MI) is how non-myocyte cells that survived the ischemic injury, keep withstanding additional cellular damage by stress forms typically arising during the post-infarction inflammation. Here we aimed to determine if cell survival is conferred by expressi...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/j.yjmcc.2020.10.013
更新日期:2020-10-30 00:00:00
abstract::The authors have previously resolved four forms of cyclic nucleotide phosphodiesterase (PDE) in neonatal rat cultured cardiomyocytes by use of high-performance liquid chromatography (HPLC) and have shown that the response of the cGMP-stimulated PDE to the effector cGMP was markedly reduced as compared to that of the c...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1006/jmcc.1996.0207
更新日期:1996-10-01 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::Biglycan, a small dermatan sulphate proteoglycan, has been postulated to interact with other components of the extracellular matrix (ECM), specifically collagens. We hypothesized that biglycan messenger ribonucleic acid (mRNA) is increased in the myocardial infarct zone. Biglycan mRNA expression after acute myocardial...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1006/jmcc.1998.0737
更新日期:1998-09-01 00:00:00
abstract::We evaluated whether phospholemman (PLM) regulates L-type Ca(2+) current (ICa) in mouse ventricular myocytes. Expression of α1-subunit of L-type Ca(2+) channels between wild-type (WT) and PLM knockout (KO) hearts was similar. Compared to WT myocytes, peak ICa (at -10 mV) from KO myocytes was ~41% larger, the inactivat...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/j.yjmcc.2015.04.017
更新日期:2015-07-01 00:00:00
abstract::This study sought to evaluate the use of tetrazolium salt XTT reduction as an indicator of valvular viability in a cryoprocessed porcine cardiac homograft model. The XTT tetrazolium assays was based on the metabolic reduction of Sodium 3'-[1-(phenylamino-carbonyl)-3,4-Tetrazolium]-bis(4-methoxy-6-nitro) benzene sulfon...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1006/jmcc.1996.0354
更新日期:1997-04-01 00:00:00
abstract::The resting potential of "sodium-loaded' cardiac cells can transiently hyperpolarize to levels negative to the steady state resting potential [3,5,6]. Hyperpolarization is associated with the coupled efflux of Na+ and influx of K+ driven by an active transport process and may result from an increased K+ equilibrium po...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/s0022-2828(84)80660-4
更新日期:1984-08-01 00:00:00
abstract::Clinical studies suggest increased arrhythmia risk associated with cell therapy for myocardial infarction (MI); however, the underlying mechanisms are poorly understood. We hypothesize that the degree of electrical viability in the infarct and border zone associated with skeletal myoblast (SKMB) or mesenchymal stem ce...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/j.yjmcc.2006.09.011
更新日期:2007-02-01 00:00:00
abstract::We have recently shown that norepinephrine (NE) pretreatment attenuates Ca2+ overloading in cardiac rat trabeculae during metabolic inhibition (MI) with NaCN (2 mmol/l), and improves contractile recovery during a subsequent recovery period (RP). In the present study, we investigated the effects of the continuous prese...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1006/jmcc.1997.0617
更新日期:1998-02-01 00:00:00
abstract::Carnitine, certain of its derivatives, and the amino acid metabolite, taurine, when administered independently in prior studies have been shown to improve cardiac mechanic and/or metabolism. The purpose of these studies is to test a new compound, propionylcarnitine taurine (PCT), which potentially combines these actio...
journal_title:Journal of molecular and cellular cardiology
pub_type: 杂志文章
doi:10.1016/s0022-2828(88)80179-2
更新日期:1988-01-01 00:00:00