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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Expression data from adult (9 month-old) and young (4 month-old) hearts from C57BL/6J mice

ABSTRACT: G protein-coupled receptor kinase 2 (GRK2) has emerged as a key regulator of cardiac function and myocardial structure. Cardiac GRK2 is increased in heart failure and ischemia in humans, whereas genetic inhibition of GRK2 is cardioprotective in animal models of these pathologies. However, the mechanistic basis underlying these effects are not fully understood. We have used adult GRK2 hemizygous mice (GRK2+/-) as a model to assess the effects of a sustained systemic inhibition of GRK2 in heart tissue with age. We used microarrays to determine the global programme of gene expression underlying cardioprotection with age in GRK2 hemizygous mice in comparation with their wild-type littermates. 9 month-old and 4 month-old mice hearts were collected for RNA extraction and hybridization on Affymetrix microarrays.

ORGANISM(S): Mus musculus

SUBMITTER: Lucas Elisa

PROVIDER: E-GEOD-41807 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Expression data from adult (9 month-old) and young (4 month-old) hearts from GRK2 heterozygous C57BL/6J mice.

Project description:G protein-coupled receptor kinase 2 (GRK2) has emerged as a key regulator of cardiac function and myocardial structure. Cardiac GRK2 is increased in heart failure and ischemia in humans, whereas genetic inhibition of GRK2 is cardioprotective in animal models of these pathologies. However, the mechanistic basis underlying these effects are not fully understood. We have used adult GRK2 hemizygous mice (GRK2+/-) as a model to assess the effects of a sustained systemic inhibition of GRK2 in heart tissue with age. We used microarrays to determine the global programme of gene expression underlying cardioprotection in GRK2 hemizygous mice with age. 9 month-old and 4 month-old mice hearts were collected for RNA extraction and hybridization on Affymetrix microarrays.

2012-10-25 | E-GEOD-41808 | biostudies-arrayexpress

Expression data from adult (9 month-old) hearts from GRK2 heterozygous C57BL/6J mice and its wild type littermates

Project description:G protein-coupled receptor kinase 2 (GRK2) has emerged as a key regulator of cardiac function and myocardial structure. Cardiac GRK2 is increased in heart failure and ischemia in humans, whereas genetic inhibition of GRK2 is cardioprotective in animal models of these pathologies. However, the mechanistic basis underlying these effects are not fully understood. We have used adult GRK2 hemizygous mice (GRK2+/-) as a model to assess the effects of a sustained systemic inhibition of GRK2 in heart tissue with age. We used microarrays to determine the global programme of gene expression underlying cardioprotection in GRK2 hemizygous mice. 9 month-old mice hearts were collected for RNA extraction and hybridization on Affymetrix microarrays.

2012-10-20 | E-GEOD-41706 | biostudies-arrayexpress

Expression data from young (4 month-old) hearts from GRK2 heterozygous C57BL/6J mice and its wild type littermates

Project description:G protein-coupled receptor kinase 2 (GRK2) has emerged as a key regulator of cardiac function and myocardial structure. Cardiac GRK2 is increased in heart failure and ischemia in humans, whereas genetic inhibition of GRK2 is cardioprotective in animal models of these pathologies. However, the mechanistic basis underlying these effects are not fully understood. We have used adult GRK2 hemizygous mice (GRK2+/-) as a model to assess the effects of a sustained systemic inhibition of GRK2 in heart tissue with age. We used microarrays to determine the global programme of gene expression underlying cardioprotection in GRK2 hemizygous mice. 4 month-old mice hearts were collected for RNA extraction and hybridization on Affymetrix microarrays.

2012-10-25 | E-GEOD-41809 | biostudies-arrayexpress

GRK2 deficiency confers cardioprotective profile.

Project description:This SuperSeries is composed of the following subset Series: GSE41706: Expression data from adult (9 month-old) hearts from GRK2 heterozygous C57BL/6J mice and its wild type littermates GSE41807: Expression data from adult (9 month-old) and young (4 month-old) hearts from C57BL/6J mice GSE41808: Expression data from adult (9 month-old) and young (4 month-old) hearts from GRK2 heterozygous C57BL/6J mice. GSE41809: Expression data from young (4 month-old) hearts from GRK2 heterozygous C57BL/6J mice and its wild type littermates Refer to individual Series

2012-10-25 | E-GEOD-41810 | biostudies-arrayexpress

Expression data from adult (9 month-old) and young (4 month-old) hearts from C57BL/6J mice

Project description:G protein-coupled receptor kinase 2 (GRK2) has emerged as a key regulator of cardiac function and myocardial structure. Cardiac GRK2 is increased in heart failure and ischemia in humans, whereas genetic inhibition of GRK2 is cardioprotective in animal models of these pathologies. However, the mechanistic basis underlying these effects are not fully understood. We have used adult GRK2 hemizygous mice (GRK2+/-) as a model to assess the effects of a sustained systemic inhibition of GRK2 in heart tissue with age. We used microarrays to determine the global programme of gene expression underlying cardioprotection with age in GRK2 hemizygous mice in comparation with their wild-type littermates.

2012-10-25 | GSE41807 | GEO

Expression data from adult (9 month-old) and young (4 month-old) hearts from GRK2 heterozygous C57BL/6J mice.

2012-10-25 | GSE41808 | GEO

Expression data from young (4 month-old) hearts from GRK2 heterozygous C57BL/6J mice and its wild type littermates

2012-10-25 | GSE41809 | GEO

Expression data from adult (9 month-old) hearts from GRK2 heterozygous C57BL/6J mice and its wild type littermates

2012-10-20 | GSE41706 | GEO

Microarray gene expression profiling of transgenic mice with myocardium-specific expression of RKIP or a GRK-specific peptide inhibitor

Project description:The Raf kinase inhibitor protein (RKIP) is a dual inhibitor of the Raf kinase and the G-protein-coupled receptor kinase 2 (GRK2). GRK2 is an indispensable kinase, which exerts a major role in the pathogenesis of heart failure, and inhibition of GRK2 is cardioprotective in experimental models of heart failure. To investigate the cardiac function of RKIP as GRK2 inhibitor, we generated transgenic mice with myocardium-specific expression of RKIP under control of the alpha-MHC promoter. For comparison, mice with myocardium-specific expression of a GRK-specific peptide inhibitor (GRK-Inh) were also generated. Two different transgenic mouse models were established. Transgenic RKIP mice and transgenic GRK-Inh mice were born at Mendelian frequencey and grew to adulthood normally. Microarray gene expression profiling was performed with heart tissue isolated from three study groups: (i) RKIP-transgenic mice, (ii) GRK-Inh-transgenic mice, and (iii) B6 control mice.

2012-12-06 | E-GEOD-42753 | biostudies-arrayexpress

Microarray gene expression profiling of cardiac genes at the onset of heart failure

Project description:Atherosclerosis and pressure overload are major risk factors for the development of heart failure in patients. Cardiac hypertrophy often precedes the development of heart failure. However, underlying mechanisms are incompletely understood. To investigate pathomechanisms underlying the transition from cardiac hypertrophy to heart failure we used experimental models of atherosclerosis- and pressure overload-induced cardiac hypertrophy and failure, i.e. apolipoprotein E (apoE)-deficient mice, which develop heart failure at an age of 18 months, and non-transgenic C57BL/6J (B6) mice with heart failure triggered by 6 months of pressure overload induced by abdominal aortic constriction (AAC). The development of heart failure was monitored by echocardiography, invasive hemodynamics and histology. The microarray gene expression study of cardiac genes was performed with heart tissue from failing hearts relative to hypertrophic and healthy heart tissue, respectively. The microarray study revealed that the onset of heart failure was accompanied by a strong up-regulation of cardiac lipid metabolism genes involved in fat synthesis, storage and oxidation. Microarray gene expression profiling was performed with heart tissue isolated from (i) 18 month-old apoE-deficient mice relative to age-matched non-transgenic C57BL/6J (B6) mice, (ii) 6 month-old apoE-deficient mice with 2 months of chronic pressure overload induced by abdominal aortic constriction (AAC) relative to sham-operated apoE-deficient mice and nontransgenic B6 mice, (iii) 10 month-old B6 mice with 6 months of AAC relative to sham-operated B6 mice, and (iv) 5 month-old B6 mice with 1 month of AAC relative to age-matched B6 mice.

2010-12-03 | E-GEOD-25765 | biostudies-arrayexpress

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