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Effect of Palmitic acid on the transcriptional profile of skin regulatory T cells (Tregs)

ABSTRACT: Effect of Palmitic acid on the transcriptional profile of skin regulatory T cells (Tregs)

PROVIDER: PRJNA858793 | ENA |

REPOSITORIES: ENA

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Effect of Palmitic acid on the transcriptional profile of skin regulatory T cells (Tregs)

Project description:We found that palmitic acid inhibits proliferation and cell death of Tregs in the skin. The goal of this study is to investigate how Palmitic acid drives lipid toxicity in skin Tregs

2023-07-01 | GSE208210 | GEO

Effect of high fat diet (HFD) on gene expression profile of regulatory T cells (Tregs) in the skin

Project description:We found that HFD inhibit the homeostasis of skin Tregs. The goal of this study is to investigate the mechanism by which HFD dysregulates skin Tregs

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Effect of palmitic acid on gene expression of two types of endothelial cells

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2022-12-01 | GSE205913 | GEO

Effect of exogenous FABP4 (A-FABP/aP2) with and without palmitic acid on gene expression in RAW264.7 macrophages

Project description:Gene expression profile of FABP4 treatment in RAW264.7 macrophages was examined to show a ligand (palmitic acid)-dependent and a ligand-independent effect of FABP4. RAW264.7 macrophages were treated with and without 200 nM recombinant FABP4 in the absence and presence of 0.2 mM palmitic acid.

2015-09-19 | E-GEOD-73173 | biostudies-arrayexpress

Abnormal metabolism of palmitic acid promotes the formation of renal calcium oxalate stones

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Palmitic Acid Upregulates Type I Interferon-Mediated Antiviral Response and Cholesterol Biosynthesis in Human Astrocytes

Project description:Chronic intake of a high-fat diet increases saturated fatty acids in the brain causing the progression of neurodegenerative diseases. Palmitic acid is a free fatty acid abundant in the diet that at high concentrations may penetrate the blood brain barrier and stimulate the production of pro-inflammatory cytokines, leading to inflammation in astrocytes. The use of the synthetic neurosteroid tibolone in protection against fatty acid toxicity is emerging, but its transcriptional effects on palmitic acid induced lipotoxicity remain unclear. Herein, we performed a transcriptome profiling of normal human astrocytes to investigate the molecular mechanisms by which palmitic acid causes cellular damage to astrocytes, and whether tibolone could reverse its detrimental effects. Astrocytes undergo a profound transcriptional change at 2 mM palmitic acid, affecting the expression of 739 genes, 366 upregulated and 373 downregulated. However, tibolone at 10 nM does not entirely reverse palmitic acid effects. Additionally, the protein protein interaction reveals two novel gene clustering modules. The first module involves astrocyte defense responses by upregulation of pathways associated with antiviral innate immunity, and the second is linked to lipid metabolism. Our data suggest that activation of viral response signaling pathways might be so far, the initial molecular mechanism of astrocytes in response to a lipotoxic insult by palmitic acid, triggered particularly upon increased expression levels of *IFIT2*, *IRF1*, and *XAF1*. Therefore, this novel approach using a global gene expression analysis may shed light on the pleiotropic effects of palmitic acid on astrocytes, and provide a basis for future studies addressed to elucidate these responses in neurodegenerative conditions, which is highly valuable for the design of therapeutic strategies.

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Transcriptomic profile of endogenous Tregs in mouse injured bone, muscle, skin and heart tissues compared to healthy spleen Tregs

Project description:We aimed to identify the changes in gene expression profile of Tregs isolated from the injured bone, muscle, skin and heart, compared to healthy (uninjured) spleen Tregs. The bone injury consisted of calvarial bone defects, the muscle injury involved volumetric muscle loss defect in the quadriceps and the skin injury involved full-thickness punch-biopsy wounds. The heart injury was performed using the left coronary artery ligation to induce myocardial infarction (MI). The Tregs accumulating within the injured tissues were isolated and purified by fluorescence activated cell sorting (FACS), at 7 days post-injury (which is the peak of Treg accumulation within these tissues post-injury).

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RNASeq of Healthy Human Skin Tregs and CD4 Teffs versus Psoriatic Human Skin Tregs and CD4 Teffs

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Palmitic acid regulates the biological function of Ovarian Cancer

Project description:Palmitic acid was positively correlated with the invasion ability of ovarian cancer cells, its up-regulation inhibited the migrative, invasive and cloning capacity of cancer cells in vitro and suppressed the tumor proliferation and intraperitoneal diffusion in vivo, while its up-regulation did the opposite.

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Transcriptional profiling of Regulatory T-cells isolated from adult skin and skin draining lymph nodes (SDLNs)

Project description:Purpose: The goals of this study were to identify preferential gene expression signatures that are unique to telogen skin resident Tregs relative to peripheral Tregs Methods: Tregs from telogen skin and SDLNs were purified by cell sorting (using the Treg GFP reporter mouse line Foxp3-DTR/GFP) to generate mRNA transcription profiles. Results: Transcriptional profiling revealed a unique Skin treg signature relative to SDLN Tregs Conclusion: Our study represents the first detailed analysis of the skin Treg transcriptome. mRNA profiles of skin and SDLN Tregs isolated from 6 week old Foxp3-DTR/GFP mice.

2017-04-28 | E-GEOD-76138 | biostudies-arrayexpress

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