Droplet Microfluidics for 3D Epithelial Cell Culture
Poster Mar 25, 2014
Monika Dolega (Pyzalska), Xavier Gidrol, Nathalie Picollet-D’hahan
We have developed a microfluidic system which delivers highly-controlled conditions for the seeding and growth of polarized cellular spheres, or acini, within matrigel beads. We use high-throughput flow handling to change culture conditions and to move acini through flow-analysis devices on an acini-by-acini basis. Using these optimized parameters we can now design RNAi screens that will identify genes important for the regulation of acini formation in a 3D environment.
Genome-wide association studies (GWAS) have identified more than 100 genetic loci associated with type 2 diabetes. The majority of these are located in the intergenic or intragenic regions suggesting that the implicated variants may alter chromatin conformation. This, in turn, is likely to influence the expression of nearby or more remotely located genes to alter beta cell function. At present, however, detailed molecular and functional analyses are still lacking for most of these variants. We recently analysed one of these loci and mapped five causal variants in an islet-specific enhancer cluster within the STARD10 gene locus. Here, we aimed to understand how these causal variants influence b-cell function by alteration of the chromatin structure of enhancer clusterREAD MORE
The nuclear receptors pregnane X receptor (PXR) and constitutive androstane receptor (CAR) are closely related transcription factors that regulate the expression of phase I (cytochrome P450s), phase II metabolizing enzymes and transporter genes in response to xenobiotics, including prescription drugs.READ MORE