Project description:The purpose of this study was to study the biological consequences of inhibiting acid beta-galactosidase with the use of conduritol b epoxide, which serves as a chemical model of Gaucher disease
Project description:Based on next generation RNA-seq, we examed Arsenic trioxide treatment (ATO) effect on MSCs-interacting MCF7 cells in 3D cultures. We found gap junction protein Cx43 is dramatically downregulated after ATO treatment..
Project description:Investigation of proteomic changes in HEK 293T cells after 8h of actinomycin D treatment with special focus on RNA modifying enzymes.
Project description:To study the effects of miR--210 on 293T cells and hypoxia response, we used the CRISPR/Cas9 system to knockout (KO) the human miR-210 gene in 293T cells. We then added DMOG to mimic hypoxia condition and analyzed the RNA expression profile of wildtype (WT) and KO cells under normal and hypoxic conditions. DMOG treatment and RNA-seq were performed three times (experiment 1, 2, and 3).
Project description:Transcriptional profiling of Human Embryonic Kidney(293T) Cells comparing control untreated 293T cells with 293T cells transfected with A) pcDNA 3.0(-) vector[Invitrogen] (Mock) and B) Expression vector pcDNA 3.0(-) containing cloned Influenza virus H5N1and H11N1-NS1 (Non-Structural1) gene.
Project description:Mesenchymal stem cells (MSCs) exist in almost all tissues and participate in tissue regeneration and homeostasis. MSCs based therapy is applied to some refractory immune diseases to control inflammation, such as lupus nephritis, Crohn’s disease and rheumatoid arthritis. However, accumulating studies showed that the immunomodulatory capacity of naïve MSCs is mild and limited. To enhance MSCs immunomodulatory function, researchers innovated a new method to reprogram MSCs via pre-treatment with inflammatory cytokines. In this work, we firstly used a cocktail of three cytokines, IL-1β, TNF-a and IFN-γ, to treat hUC-MSCs (human MSCs from umbilical cord). We then performed gene expression profiling analysis using data obtained from RNA-seq of 3 untreated hUC-MSCs (ctrl) and 3 cytokines-treated hUC-MSCs (primed).
Project description:Dry eye disease (DED) characterizes by chronic inflammation and an unstable tear film. Stem cells have shown potential for DED treatment, but the main challenge lies in improving the effectiveness of cell delivery. Here, we developed novel eye drops for DED treatment by employing porous microcarriers with mesenchymal stem cells. The microcarriers were created by electrospraying the solution of Arginine-Glycine-Aspartic Acid (RGD) peptides-modified sodium alginate with polyethylene oxide and mesenchymal stem/stromal cells (MSCs) into the calcium chloride solution. In vitro experiments based on a hyperosmotic corneal epithelial cell model indicated that porous microcarriers encapsulated with MSCs (RGD-Alg@MSCs) demonstrated notable enhancements in cell viability, reductions in apoptosis and reactive oxygen species (ROS), and diminished expression of pro-inflammatory cytokines. In the DED model using non-obese diabetic (NOD) mice, RGD-Alg@MSCs effectively enhanced tear production, promoted corneal healing, and alleviated inflammation. Additionally, RGD-Alg@MSCs modulated the immune environment in DED by inhibiting dendritic cell (DC) activation and suppressing Th17 differentiation in vitro, effectively disrupting the inflammatory feedback loop characteristic of DED. This immune modulation strategy was further validated through in vivo experiments, confirming its therapeutic potential. Thus, the designed MSCs-encapsulated porous microcarrier system can improve stem cell delivery and DED treatment efficiency.
Project description:To delineate the repertoire of RNA binding of MED23, we performed a denatured CLIP-seq experiment coupled with high-salt wash in MED23-HA 293T cells and wildtype 293T cells as a control.
Project description:Methylome data obtained from human embryonic kindey (HEK)-293T cells expressing a GFP (293T-GFP) or a truncated form of Arabidopsis DEMETER (DME) 5-methylcytosine (5mC) DNA glycosylase (293T-DMEΔ) analyzed on a Human Methylation 450K BeadChip platform (Illumina). These methylation array data revealed genome-wide DNA methylation patterns of the 293T-GFP cells (without direct 5mC excision activity) and 293T-DMEΔ cells (with artificially implemented direct 5mC excision activity).