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GNPS - Cardiolipin

ABSTRACT: Cardiolipin( 1',3'-bis[1,2-dimyristoyl-sn-glycero-3-phospho]-glycerol (sodium salt)) and bovine heart cardiolipin Standards.

INSTRUMENT(S): Xevo G2-S QTOF from Waters

ORGANISM(S): Diphosphatidylglycerol Lipid

SUBMITTER: Dale Nagle

PROVIDER: MSV000083086 | GNPS | Wed Oct 31 14:30:00 GMT 2018

REPOSITORIES: GNPS

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Cardiolipin

Project description:Cardiolipin( 1',3'-bis[1,2-dimyristoyl-sn-glycero-3-phospho]-glycerol (sodium salt)) and bovine heart cardiolipin Standards.

2018-10-31 | MSV000083086 | MassIVE

GNPS Cardiolipin

Project description:Cardiolipin( 1',3'-bis[1,2-dimyristoyl-sn-glycero-3-phospho]-glycerol and bovine heart cardiolipin Standards.

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GNPS Cardiolipin standard

Project description:Cardiolipin bovine heart C18:2 and cardiolipin C14:0 standards were purchased from Sigma and dissolved in i-PrOH 10ug/ml ,1ug/ml respectively.

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Cardiolipin from bovine heart authentic standard analysed in negative mode

Project description:Cardiolipin from bovine heart authentic standard analysed in negative mode C18-ESI-HRMS with water and acetonitrile bot 0.05% ammonium hydroxide

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GNPS - Cardiolipin from bovine heart authentic standard analysed in negative mode

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Defective mitochondrial cardiolipin remodeling dampens HIF-1a expression in hypoxia

Project description:Mitochondria fulfill vital metabolic functions and act as crucial cellular signaling hubs integrating their metabolic status into the cellular context. Here, we show that defective cardiolipin-remodeling, upon loss of the cardiolipin acyl transferase Tafazzin, mutes HIF-1a signaling in hypoxia. Tafazzin-deficiency does not affect posttranslational HIF-1a regulation but rather HIF-1a gene-expression, a dysfunction recapitulated in iPSCs-derived cardiomyocytes from Barth Syndrome patients with Tafazzin-deficiency. RNAseq analyses confirmed drastically altered signaling in Tafazzin mutant cells. In hypoxia, Tafazzin-deficient cells display reduced production of reactive oxygen species (ROS) perturbing NF-kB activation and concomitantly HIF-1a gene-expression. In agreement, Tafazzin-deficient mice hearts display reduced HIF-1a levels and undergo maladaptive hypertrophy with heart failure in response to pressure overload challenge. We conclude that defective mitochondrial cardiolipin-remodeling dampens HIF-1a signaling through inactivation of a non-canonical signaling pathway: Lack of NF-kB activation through reduced mitochondrial ROS production diminishes HIF-1a transcription.

2018-09-12 | GSE119775 | GEO

Genome-wide analysis of gene transcription in myocardium of mice transgenically expressing human cardiolipin synthase 1 (hCLS1) in cardiac tissue

Project description:Analysis of the transcriptome of cardiac tissue from mice transgenically expressing human cardiolipin synthesis. The hypothesis tested was that cardiac specific transgenic expression of cardiolipin synthase alters myocardial lipidomic flux resulting in compensatory metabolic gene transcriptional changes that will attenuate pathological environmental and dietary insults on bioenergetics. Total RNA obtained from cardiac tissue from transgenic cardiac specific expressing human cardiolipin synthase 1 (hCLS1) mouse model at 4 months of age compared to wildtype littermates

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Cardiolipin Synthesis Governs Systemic Energy Homeostasis through Thermogenic Fat Mitochondria

Project description:Here we show that synthesis of the mitochondrial phospholipid cardiolipin is an indispensable driver of thermogenic fat function. Cardiolipin biosynthesis is robustly induced in brown and beige adipose upon cold exposure. Mimicking this response by overexpressing cardiolipin synthase (Crls1) enhances energy consumption in mouse and human adipocytes. Crls1 deficiency diminishes mitochondrial uncoupling in brown and beige adipocytes and elicits a nuclear transcriptional response through ER stress-mediated retrograde communication. Cardiolipin depletion in brown and beige fat abolishes adipose thermogenesis and glucose uptake and renders animals strikingly insulin resistant. We further identify a rare human CRLS1 variant associated with insulin resistance and show that adipose CRLS1 levels positively correlate with insulin sensitivity. Thus, adipose cardiolipin is a powerful regulator of organismal energy homeostasis through thermogenic fat bioenergetics.

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Cardiolipin is required for membrane docking of mitochondrial ribosomes and protein synthesis

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