Effect of PPARβ/δ agonist GW501516 on human and murine mesenchymal stromal cells
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1192250 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR31550906.fastq.gz | Fastqsanger.gz | |||
| SRR31550907.fastq.gz | Fastqsanger.gz | |||
| SRR31550908.fastq.gz | Fastqsanger.gz | |||
| SRR31550909.fastq.gz | Fastqsanger.gz | |||
| SRR31550910.fastq.gz | Fastqsanger.gz |
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Project description:Recently the role of PPARβ/δ in angiogenesis has been revealed, and we hypothesized that the crosstalk between hypoxia and PPARβ/δ on endothelial cells may exsist. To elucidate the interaction between two signalings, we report the comprehensive change of transcripts induced by PPARβ/δ agonist (GW501516) and/or hypoxia. We used microarray analysis of HUVECs treated with PPARβ/δ agonist (GW501516) and/or hypoxia (1% O2) for 24-hours, and we identified a group of consistently up- or down-regulated genes.
2014-03-06 | GSE50378 | GEO
Project description:Recently the role of PPARβ/δ in angiogenesis has been revealed, and we hypothesized that the crosstalk between hypoxia and PPARβ/δ on endothelial cells may exsist. To elucidate the interaction between two signalings, we report the comprehensive change of transcripts induced by PPARβ/δ agonist (GW501516) and/or hypoxia. We used microarray analysis of HUVECs treated with PPARβ/δ agonist (GW501516) and/or hypoxia (1% O2) for 24-hours, and we identified a group of consistently up- or down-regulated genes. HUVECs were used within the first 6 passages. HUVECs were treated with PPARβ/δ agonist (GW501516) at a concentration of 100 nM and/or hypoxia (1% O2) for 24-hours. Same concentration of DMSO was used as a control sample, and as to the oxgen, normoxia was used as a control condition.
2014-03-06 | E-GEOD-50378 | biostudies-arrayexpress
Project description:This study employed 3’ RNA-Seq profiling (3RSP) to investigate the transcriptomic effects of the PPARβ/δ agonist GW501516 (1 μM, 24 hours) on mesenchymal stromal cells (MSCs). Treated samples were compared with untreated controls to identify differentially expressed genes. The analysis revealed ANGPTL4 as the most significantly overexpressed gene in the treated condition across multiple experimental models, including murine and human MSCs. Importantly, this upregulation was observed in human MSCs derived from diverse tissues, such as adipose tissue, bone marrow, and umbilical cord, highlighting the consistent response of MSCs to PPARβ/δ activation across species and sources. Further functional experiments demonstrated that ANGPTL4 plays a pivotal role in enhancing the anti-apoptotic properties of MSCs. This effect was evident in both autocrine (self-regulating) and paracrine (targeting other cells) mechanisms, suggesting that ANGPTL4 may act as a key mediator of MSC-based therapeutic effect.
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Project description:H3K27Ac is one of the expressed enhancer markers, PPARβ/δ is a transcription factor and Pol II (RNA polymerase II) is an enzyme which catalyzes the transcription of DNA to synthesize precursors of mRNA and most snRNA and microRNA. These genomic localization in endothelial cells is unknown in endothelial cells. This time, we established a new antibody for H3K27ac, PPARβ/δ and Pol II and performed ChIP-seq to identify H3K27ac, PPARβ/δ and Pol II binding site in whole genome manner under PPARβ/δ agonist and/or hypoxia. We used chromatin immunoprecipitation with deep sequencing (ChIP-seq) of HUVECs treated with PPARβ/δ agonist (GW501516 100nM) and/or hypoxia (1%O2) for 24hours, then H3K27ac, PPARβ/δ and Pol II binding regions were identified. Normoxia and DMSO was used as a control condition. HUVECs were used within the first 6 passages.
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Project description:The formation of antigen-specific memory CD8+ T cells is one of the most important features of the adaptative immune system, allowing the establishment of long-term protection against secondary infections. Although emerging evidence suggests that metabolic reprogramming is crucial for memory T cell differentiation and survival, the underlying mechanisms that drive metabolic rewiring needed for memory T cells remain unclear. Here, we found that the nuclear receptor peroxisome proliferator-activated receptor-beta/delta (PPARβ/δ) was upregulated to instruct the metabolic reprogramming, including downregulation of aerobic glycolysis and the promotion of oxidative metabolism and fatty acid oxidation, that occurs during the transition toward the establishment of central memory CD8+ T cells. Mechanistically, the exposure to interleukin-15 (IL-15) and expression of T cell factor 1 (TCF1) could coordinately activated the PPARβ/δ pathway during acute viral infection and chronic antigen exposure contexts, counteracting apoptosis induced by antigen clearance and metabolic stress. Together, our work indicates that PPARβ/δ is a master metabolic regulator orchestrating the metabolic reprogramming required for the establishment of a metabolic profile favorable for T cells longevity.
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Project description:The formation of antigen-specific memory CD8+ T cells is one of the most important features of the adaptative immune system, allowing the establishment of long-term protection against secondary infections. Although emerging evidence suggests that metabolic reprogramming is crucial for memory T cell differentiation and survival, the underlying mechanisms that drive metabolic rewiring needed for memory T cells remain unclear. Here, we found that the nuclear receptor peroxisome proliferator-activated receptor-beta/delta (PPARβ/δ) was upregulated to instruct the metabolic reprogramming, including downregulation of aerobic glycolysis and the promotion of oxidative metabolism and fatty acid oxidation, that occurs during the transition toward the establishment of central memory CD8+ T cells. Mechanistically, the exposure to interleukin-15 (IL-15) and expression of T cell factor 1 (TCF1) could coordinately activated the PPARβ/δ pathway during acute viral infection and chronic antigen exposure contexts, counteracting apoptosis induced by antigen clearance and metabolic stress. Together, our work indicates that PPARβ/δ is a master metabolic regulator orchestrating the metabolic reprogramming required for the establishment of a metabolic profile favorable for T cells longevity.
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Project description:PPARδ is emerging as a key metabolic regulator with pleiotropic actions on various tissues including fat, skeletal muscle and liver. The aim of our study was to assess the effect of either the well-validated PPARδ agonist GW501516, or a novel PPARδ agonist KD3010 in mouse models of liver fibrosis. KD3010, but not GW501516, treated mice had markedly less liver injury induced by carbon tetrachloride (CCl4) injections. Deposition of extracellular matrix proteins was lower in the KD3010 group as compared to the vehicle or GW501516 treated group. Interestingly, profibrogenic CTGF was significantly induced by GW501516, but not KD3010, following CCl4 treatment. The hepatoprotective and antifibrotic effect of KD3010 was confirmed in a model of cholestasis-induced liver injury and fibrosis using bile duct ligation for three weeks. Hepatocytes were identified as targets for PPARδ agonist, and primary hepatocytes treated with KD3010 showed decreased serum starvation or CCl4-induced cell death, while GW501516 treated hepatocytes were not protected. KD3010 treatment of hepatocytes decreased reactive oxygen species (ROS) production after CCl4 exposure. In conclusion, our data demonstrate that a novel PPARδ agonist has hepatoprotective and antifibrotic effects in animal models of liver fibrosis. Given the oral availability and the favorable pharmacologic profile of KD3010, ligand activation of PPARδ represents an attractive and promising target for patients with chronic liver diseases.
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