Project description:Differential expression analysis of mRNAs and proteins showed that the expression of genes related with apoptosis, immune response, and inflammatory response were significantly up-regulated in ADSCs cultivated in FBS containing media.
Project description:The objective of this study was thus to develop ab initio that chemically defined serum-free medium. We used a statistical design of experiment (DOE) approach to screen a large number of candidate factors, for both their potential individual and synergetic effects, as to identify a formulation which was then tested extensively. In this study, we present the properties of keratinocyte cultivated with serum-Free medium (Surge SFM) and complemented DME-Ham medium (with serum).
Project description:In the research field of extracellular vesicles (EVs), the use of EV-depleted fetal bovine serum (FBS) for in vitro studies is highly recommended to eliminate the confounding effects of media derived EVs. EV-depleted FBS may either be prepared by ultracentrifugation or bought commercially, nevertheless these depletion methods do not guarantee an RNA-free preparation. In this study we have addressed the RNA contamination issue in FBS, ultracentrifuged EV-depleted FBS, commercially available EV-depleted FBS, and also from our recently developed filtration based EV depleted FBS. Commercially available serum-free, xeno-free defined media were also screened for RNA contamination.
Project description:HEK293T cells grown to confluence in media +10% fetal bovine serume. Media was removed and replaced with serum free media, and cultured for 3 days. RNA was harvested from day0 (serum supplemented), control, and day3 (serum starved) cultures, experiment.
Project description:Production of cultured meat requires the robust differentiation of satellite cells into mature muscle fibers without the use of animal-derived components. Current protocols induce myogenic differentiation in vitro through serum starvation, an abrupt reduction in serum concentration. Here, we used RNA sequencing to investigate the transcriptomic remodelling of bovine satellite cells during myogenic differentiation induced by serum starvation. We characterized canonical myogenic gene expression, and identified surface receptors upregulated during the early phase of differentiation. Supplementation of ligands to these receptors enabled the formulation of a chemically defined media that induced differentiation in the absence of serum starvation and/or transgene expression. Serum-free myogenic differentiation was of similar extent to that induced by serum starvation, as evaluated by transcriptome analysis, protein expression and the presence of a functional contractile apparatus. Moreover, the serum-free differentiation media supported the fabrication of mature three-dimensional bioartificial muscle constructs, demonstrating its suitability for cultured beef production.
Project description:Production of cultured meat requires the robust differentiation of satellite cells into mature muscle fibers without the use of animal-derived components. Current protocols induce myogenic differentiation in vitro through serum starvation, an abrupt reduction in serum concentration. Here, we used RNA sequencing to investigate the transcriptomic remodelling of bovine satellite cells during myogenic differentiation induced by serum starvation. We characterized canonical myogenic gene expression, and identified surface receptors upregulated during the early phase of differentiation. Supplementation of ligands to these receptors enabled the formulation of a chemically defined media that induced differentiation in the absence of serum starvation and/or transgene expression. Serum-free myogenic differentiation was of similar extent to that induced by serum starvation, as evaluated by transcriptome analysis, protein expression and the presence of a functional contractile apparatus. Moreover, the serum-free differentiation media supported the fabrication of mature three-dimensional bioartificial muscle constructs, demonstrating its suitability for cultured beef production.
Project description:With the goal to identify miRNAs and other small RNAs involved in EV-mediated oligodendrocyte-neuron communication, we performed deep sequencing (RNA-seq) of small RNAs derived from EVs isolated from culture supernatants of primary mouse oligodendrocytes by differential centrifugation. Oligodendrocytes were cultured and EVs harvested under serum-free conditions in presence of B27 supplement. We found that RNA isolated from EVs harvested from cells under serum-replacement conditions contains miRNA contaminants carried into the sample by defined media components.