Project description:Analysis of gene expression in NIH 3T3 cells stably knockdown for Selt (GenBank accession number NM_001040396) using vector based siRNA technique in comparison to gene expression of vector transfected NIH 3T3 cells.
2009-11-01 | GSE17087 | GEO
Project description:Effect of FGF2 on gene expression of NIH 3T3 fibroblast
Project description:Analysis of Immediate Early Response 2 (Ier2)-inducible NIH 3T3 cells after Ier2 induction with RheoSwitch ligand RSL-1. Results provide insight into the function of Ier2 in NIH 3T3 mouse embryonal fibroblasts. Immediate early genes, including Ier2, are rapidly induced in quiescent cells by proliferation and migration-inducing stimuli. Microarray gene expression profiling was performed to identify differentially expressed genes following overexpression of Ier2 in NIH 3T3-Ier2 inducible cells after 24 hour induction of Ier2.
Project description:Expression profiling of HepG2 human liver carcinoma cells and NIH 3T3 mouse fibroblasts after arsite treatment for 24h. RNA-seq data comprise 4 groups: NIH 3T3 mouse fibroblasts control and arsite treatment, and HepG2 human liver carcinoma cells control and arsenite treatment. Jena Centre for Systems Biology of Ageing - JenAge (www.jenage.de)
Project description:We analyzed the effect on HNF4A loss on Histone modifications (H3K4me1, H3K27ac) by ChIP-seq and CUT&Tag using control and HNF4A KO livers samples. We also examined chromatin accessibility by ATAC-seq in control and HNF4A KO livers. We also performed CUT&Tag and ATAC-seq of mouse fibroblast cells (NIH 3T3) treated with control or HNF4A expression vector.
Project description:Ultraviolet radiation (UV) causes certain side effects to the skin, and their accumulation to a certain extent can lead to accelerated aging of the skin. Recent studies suggests that α-arbutin may be useful in various disorders such as hyperpigmentation disorders, wound healing, and antioxidant activity. However, the role of α-arbutin in skin photodamage is unclear. In this study, under UVA-induced photodamage conditions, α-arbutin treated mouse skin fibroblasts (NIH-3T3) can repair DNA damage and resist apoptosis by reducing the production of reactive oxygen species (ROS) and increasing the phosphorylation of glycogen synthase kinase 3 beta (GSK3β) to orchestra AKT/GSK3β pathway. Meanwhile, α-arbutin can also regulate collagen metabolism and facilitate the replenishment of collagen by targeting the phosphorylation of SMAD3 to mediate the TGFβ/SMAD pathway in NIH-3T3. In conclusion, we found that α-arbutin can mitigate the detrimental effects of skin photodamage induced by UVA irradiation, and provides a theoretical basis for the use of α-arbutin in the treatment of skin photodamage.
Project description:To screen for specific circadian outputs that may distinguish the pacemaker in the mammalian suprachiasmatic nucleus (SCN) from peripheral-type oscillators in which the canonical clockworks are similarly regulated in a circadian manner, the rhythmic behavior of the transcriptome in forskolin-stimulated NIH/3T3 fibroblasts was analyzed and compared to that found in the rat SCN in vivo and SCN2.2 cells in vitro. Similar to the scope of circadian gene expression in SCN2.2 cells and the rat SCN, NIH/3T3 fibroblasts exhibited circadian fluctuations in the expression of the core clock genes, Per2, Bmal1 (Mop3), and Cry1 and 323 functionally diverse transcripts (2.6%), many of which were involved in cell communication. Overlap in rhythmically-expressed transcripts among NIH/3T3 fibroblasts, SCN2.2 cells and the rat SCN was limited to these clock genes and four other genes that mediate fatty acid and lipid metabolism or function as nuclear factors. Compared to NIH/3T3 cells, circadian gene expression in SCN oscillators was more prevalent among cellular pathways mediating glucose metabolism and neurotransmission. Coupled with evidence for the rhythmic regulation of the inducible isoform of nitric oxide synthase, the enzyme responsible for the production of nitric oxide, in SCN2.2 cells and the rat SCN but not in fibroblasts, studies examining the effects of a NOS inhibitor on metabolic rhythms in co-cultures containing SCN2.2 cells and untreated NIH/3T3 cells suggest that this gaseous neurotransmitter may play a key role in SCN pacemaker function. Thus, this comparative analysis of circadian gene expression in SCN and non-SCN cells may have important implications in the selective identification of circadian signals involved in the coupling of SCN oscillators and the regulation of rhythmicity in downstream cells or tissues. Keywords: Circadian time course