Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Lp(a) and 17K recombinant apo(a) treatment of THP-1 macrophages

ABSTRACT: Lp(a) and its distinguishing apolipoprotein constituent apo(a) have been shown to elicit proinflammatory responses from monocytes and macrophages. To obtain a global picture of the effect of Lp(a) and apo(a) on the transcriptome of these cells, we treated THP-1 macrophages with 250 nM Lp(a) or apo(a) for 6 hours, harvested RNA from the cells, and then performed RNA-seq using an Illumina NextSeq instrument. Analysis of the data using GO and KEGG strategies revealed a series of proinflammatory genes upregulated by apo(a) and even more dramatically by Lp(a).

ORGANISM(S): Homo sapiens

PROVIDER: GSE226759 | GEO | 2023/05/08

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Tindallia californiensis strain:APO

Project description:Tindallia californiensis APO genome sequencing

| PRJNA323219 | ENA

Transcriptomic profiling of LP lesions, hypertrophic LP (HLP) lesions, and healthy controls

Project description:The microarray experiment was employed to evaluate the gene expressions in skin lesions of LP, hypertrophic LP (HLP), and healthy controls.

2020-01-01 | GSE130403 | GEO

Plasma Proteome profiles of stable CAD patients stratified according to total Apo CIII levels

Project description:Apolipoprotein C-III was recently acknowledged as a prognostic marker for cardiovascular risk. High levels of Apo-CIII strongly correlate with hypertriglyceridemia and are associated with atherosclerosis and coronary heart disease (CAD). Aim of the present research was to study the plasma proteome profiles of stable CAD patients characterized by different levels of total Apo-CIII. Two subgroups of CAD patients with divergent concentrations (under and upper the median concentration of the population distribution=10mg/dL) of total circulating Apo C-III were examined using a shotgun proteomic approach. 180 plasma proteins of CAD patients were quantified and the data were analyzed by bioinformatic tools and multivariate statistics. The fold change analysis and the Partial Least Square Discriminant Analysis showed a clear separation of the two groups. The dynamic processes that involve Apo C-III concentration in blood and its relation with all other plasma proteins were considered. Lipoproteins (Apo C-II and Apo E), retinol-binding protein 4 and vitronectin were up-regulated in patients with high Apo C-III, while alpha 1-antitrypsin was down-regulated. In this pilot study, the different expression of plasma proteins through the entire range of concentrations of Apo C-III was defined, suggesting possible new players involved in the APO C-III-associated process of arterial damage

2018-07-05 | PXD005973 | Pride

Cardiac and pulmonary responses to diesel engine particulate in Apo E(-/-) mice II

Project description:Mice deficient in Apolipoprotein E (Apoe E(-/-)) vs wild type mice were exposed to diesel engine particulate by single dose intratracheal instillation. The transcript-level response of the hearts after 24h and of the lungs after 24 h were subsequently analyzed by the 2-color microarray method. Keywords: stress response, disease state analysis Three mice of the Apo E (-/-) strain were exposed to diesel engine particulate from the National Institute of Standards and Technology via intratracheal instillation. Controls consisted of 3 littermates exposed to saline vehicle. Similarly, three wild type mice were similarly exposed to diesel particulate and three to vehicle control. 24 hours after exposure, mice were humanely sacrificed by carbon dioxide asphyxiation and the hearts and lungs were collected and frozen for analysis of total RNA. In each biological replicate, 2 color microarrays were utilized to compare pooled RNA representing all three animals of each strain, and in each condition and in each tissue; each biological replicate was performed with a dye reversal. Biological replicates of the wild type mice responses to diesel engine particulate were performed three times for heart and lung.

2010-06-23 | E-GEOD-17331 | biostudies-arrayexpress

Effect of exogenous apo-transferrin on erythropoiesis in Hbbth-1 (th1/th1) mice, a model of beta-thalassemia intermedia

Project description:We aimed to evaluate changes in expression in control and th1/th1 mice treated with PBS and apo-transferrin to understand the effect(s) of exogenous apo-transferrin on normal and ineffective erythropoiesis

2020-10-01 | GSE158839 | GEO

Targeted Proteomics Using Stable Isotope Labeled Protein Fragments Enables Precise and Robust Determination of Total Apolipoprotein(a) in Human Plasma

Project description:Lipoprotein(a), also known as Lp(a), is an LDL-like particle composed of apolipoprotein(a) (apo(a)) bound covalently to apolipoprotein B100. Plasma concentrations of Lp(a) are highly heritable and vary widely between individuals. Elevated plasma concentration of Lp(a) is considered as an independent, causal risk factor of cardiovascular disease (CVD). Targeted mass spectrometry (LC-SRM/MS) combined with stable isotope-labeled recombinant proteins provides robust and precise quantification of proteins in the blood, making LC-SRM/MS assays appealing for monitoring plasma proteins for clinical implications. This study presents a novel quantitative approach, based on prototypic peptides, to determine the absolute concentration of apo(a) from two microliters of plasma and qualified according to guideline requirements for targeted proteomics assays. After optimization, assay parameters such as linearity, lower limits of quantification (LLOQ), intra-assay variability (CV: 4.72%) and inter-assay repeatability (CV: 7.76%) were determined and the LC-SRM/MS results were benchmarked against a commercially available immunoassay. In summary, the measurements of an apo(a) single copy specific peptide and a K4 specific peptide allows for the determination of molar concentration and relative size of apo(a) in individuals.

2023-02-17 | PXD026976 | panorama

Oryza sativa cultivar:IR64 and Apo

Project description:Oryza sativa cultivar:IR64 and Apo Raw sequence reads

| PRJNA679128 | ENA

Darapladib, an inhibitor of Lp-PLA2, sensitises cancer cells to ferroptosis by remodelling lipid metabolism

Project description:Arachidonic and adrenic acids in the membrane play key roles in ferroptosis, but how these fatty acids are manipulated in cells is largely unknown. Here, we reveal that lipoprotein-associated phospholipase A2 (Lp-PLA2) controls intracellular phospholipid metabolism and contributes to ferroptosis resistance. A metabolic drug screen revealed that darapladib, an inhibitor of Lp-PLA2, synergistically induced ferroptosis in the presence of GPX4 inhibitors. Notably, darapladib was able to enhance ferroptosis under lipoprotein-deficient or serum-free conditions. Furthermore, Lp-PLA2 was located in the membrane and cytoplasm and suppressed ferroptosis, suggesting the critical role of intracellular Lp-PLA2. Lipidomic analysis showed that darapladib treatment or deletion of PLA2G7, which encodes Lp-PLA2, generally enriched phosphatidylethanolamine (PE) species and reduced lysophosphatidylethanolamine (lysoPE) species. Moreover, combination treatment with darapladib and PACMA31, a GPX4 inhibitor, efficiently inhibited tumour growth in a xenograft model. Our study suggests that inhibition of Lp-PLA2 is a potential therapeutic strategy to enhance ferroptosis in cancer treatment.

2023-10-24 | PXD044002 | Pride

Genome-wide analysis of Lp(a) induced gene expression in human aortic valve interstitial cells

Project description:Lp(a) induced human aortic valve interstitial cells calcification, this work intend to elucidate the undermined biological pathways by analysing Lp(a) induced gene expression. Results provided important information of Lp(a) induced biological pathways, and showed that Lp(a) possibly exert its effects on osteogenesis, apoptosis, extracellular matrix remodeling, and vesicle biogenesis via 14-3-3 regulated biological pathways.

2018-08-17 | GSE101155 | GEO

Transcriptomic profiling of LP lesions, hypertrophic LP (HLP) lesions, and healthy controls

Project description:Transcriptomic profiling of LP lesions, hypertrophic LP (HLP) lesions, and healthy controls

| PRJNA540067 | ENA