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.
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
Project description:To investigate the effect of palmitic acid on gene expression of rat corpus cavernosum endothelial cells (RCCECs) and human umbilical vein endothelial cells (HUVECs), we used palmitic acid to treat these two primary cells, which were then subjected to RNA-seq.
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.
Project description:Individual metabolic factors are involved in the occurrence and development of CaOx stones, and dyslipidemia is an independent risk factor for the formation of urolithiasis. This study have screened out palmitic acid as one of the significantly differential metabolites in the urine of patients with renal CaOx stones compared with healthy controls by metabolomics. This study aims to further clarify the correlation between abnormal palmitic acid metabolism and the formation of renal CaOx stones, confirm the promoting effect of abnormal palmitic acid metabolism on the adhesion of CaOx crystals and the formation of renal CaOx stones
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.
Project description:Ovarian cancer is a leading cause of death among gynecologic malignancies. This disappointing prognosis is closely related to intrinsic or acquired resistance to conventional platinum-based chemotherapy, which can affect a third of patients. As such, investigating relevant molecular targets is crucial in the fight against this disease. So far, many mutations involved in ovarian cancer pathogenesis have been identified. Among them, a few pathways were implicated. One such pathway is the P13K/AKT/mTOR with abnormalities found in many cases. This pathway is considered to have an instrumental role in proliferation, migration, invasion and, more recently, in chemotherapy resistance. Serine Palmitoyltransferase (SPTLC2) have been found to influence P13K/AKT/mTOR pathway with different potential role in tumor genesis behavior. In particular, their biological function was recently investigated as regards chemoresistance, therefore, leading to the identification of potential specific indirect biomarker of platinum sensitivity in ovarian cancer
Project description:Transcriptional regulation of genes in AML12 cells treated with Palmitic acid, LXR lingand (GW3965) and Ulk1 siRNA shows differential effect of Ulk1 KD on LXr responsive genes AML-12 cells co-treated with 0.75mM PA+/- 10µM GW3965 for 24 h +/- Ulk1 SiRNA
Project description:The aim of this study is to investigate molecular mechanisms underlying the function of lncRNA ZNF593-AS in cardiomyocyte under palmitic acid stimulation in vitro.
Project description:Upregulated Hepatic Lipogenesis from Dietary Sugars Supplies Palmitic Acid to the Developing Brain of Mice fed Low Palmitic Acid from Birth