Alzheimer’s disease-induced phagocytic microglia express a specific profile of coding and non-coding RNAs [BV-2 cells]
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ABSTRACT: To detect miRNA targets in glioblastoma cell line (BV-2) we stimulate the cells with LPS 10ng/ml or vehicle and then transfect them with miRNA mimics or scrable control We performed differentially expression analysis of RNA-seq BV-2 cells vehicle or LPS stimulated overexpressing miRNA mimic or scramble mimic
Project description:Using RNA-seq, we report here that BV-2 microglial cells have a distinct transcriptomic signature and express a unique cluster of transcripts in response to 4 hrs LPS.
Project description:Cannabinoids are known to exert immunosuppressive activities. However, the mechanisms which contribute to these effects are unknown. Using lipopolysaccharide (LPS) to activate BV-2 microglial cells, we examined how Δ9-tetrahydrocannabinol (THC), the major psychoactive component of marijuana, and cannabidiol (CBD) the non-psychoactive component, modulate the inflammatory response through miRNA expression
Project description:We used a primary calvarial osteoblast cell line (CalOB) to transfect either a negative control or miR-19a-3p miRNA mimic to understand the effects on global gene expression using bulk RNA-seq.
Project description:Cannabinoids are known to exert immunosuppressive activities. However, the mechanisms which contribute to these effects are unknown. Using lipopolysaccharide (LPS) to activate BV-2 microglial cells, we examined how Δ9-tetrahydrocannabinol (THC), the major psychoactive component of marijuana, and cannabidiol (CBD) the non-psychoactive component, modulate the inflammatory response.
Project description:Sepsis associated encephalopathy (SAE), a common complication of sepsis, seriously affect the prognosis and quality of life to sepsis patients. Microglia activation is vital to the neuroinflammation and the pathology of SAE. Mild hypothermia, that a useful procedure in the treatment of traumatic brain injuries, was found to suppress microglia activation. In present study, in vitro cultured BV-2 microglial cells stimulated with LPS was employed as the model of microglia activation. The altered signitures of lncRNAs, circRNAs and mRNAs of LPS exposure and mild hypothermia were arrayed by using the Agilent ceRNA Microarray Chip.
Project description:Transcriptional profiling of BV-2 microglial cells comparing control untreated BV-2 cells with LPS-treated BV-2 cells or obovatol/LPS-treated BV-2 cells. Objective was to determine the effect of obovatol on LPS-induced gene expression in microglia.
Project description:In X-linked adrenoleukodystrophy (X-ALD), the most common peroxisomal disorder, microglial defect is suggested to prime and amplify the neuroinflammatory process. By using CRISPR/Cas9 gene editing, we recently established BV-2 microglial cell models to study the impact of dysfunctional peroxisomal b-oxidation and demonstrated the emergence of a disease-associated microglial signature in these cell lines. Their transcriptomic analysis suggested consequences on immune response. To go further, we have used RNA-sequencing and functional assays related to immune response to compare the WT and mutant BV-2 cell lines in basal conditions or upon lipopolysaccharide (LPS) stimulation.
Project description:Bavachin (BV), a therapeutic phytoestrogen in Fructus Psoraleae (FP), has been used in various diseases. However, the molecular mechanism of BV hepatotoxicity reported by many studies remains unclear. Here, we used single cell RNA sequencing (scRNA-seq) to explore the early cytotoxicity induced by BV in the liver.
Project description:Microglial cell activation has been linked to many neurodegenerative diseases. Upon stimulation by lipopolysaccharide (LPS), a number of proteins involved in inflammatory and oxidative pathways are activated. Production of nitric oxide has been regarded as a signature marker of inflammatory responses. Our recent studies demonstrated the effects of docosahexaenoic acid (DHA) to inhibit the LPS-induced inflammatory responses in BV-2 microglial cells. DHA also can upregulate the anti-oxidative pathway involving nuclear factor erythroid 2-Like 2 (Nrf2) and synthesis of heme oxygenase-1 (HO-1), a potent anti-oxidative enzyme. In order to further understand the proteins involved, this study used a label-free quantitative proteomics approach to examine effects of DHA and LPS on proteins and signaling pathways in microglial cells.
Project description:Cannabinoids are known to exert immunosuppressive activities. However, the mechanisms which contribute to these effects are unknown. Using lipopolysaccharide (LPS) to activate BV-2 microglial cells, we examined how Δ9-tetrahydrocannabinol (THC), the major psychoactive component of marijuana, and cannabidiol (CBD) the non-psychoactive component, modulate the inflammatory response. Microarray analysis of genome-wide mRNA levels was performed using Illumina platform and the resulting expression patterns analyzed using the Ingenuity Pathway Analysis to identify functional subsets of genes, and the Ingenuity System Database to denote the gene networks regulated by CBD and THC.