Project description:In order to investigate the characteristics and mechanisms of embryonic stem cell derived exosomes attenuates transverse aortic constriction induced ventricular remodeling, the proteomic profiles of human embryonic stem cell derived exosomes were analysed by label-free quantification.
Project description:We have performed gene expression microarray analysis to profile transcriptomic signatures affected by EtOH during neural differentiation of human embryonic stem cells H1 human embryonic stem cells were differentiated into neural rosettes and neural progenitor cells in the presence or absence of 20mM EtOH treatment. Undifferentiated passage 40 H1 cells were used as a parental control. Total RNA was isolated from biological duplicates and subjected to gene expression profiling analysis using Affymetrix Human Genome U133 plus 2.0 Array
Project description:Despite the progress in safety and efficacy of cell therapy with pluripotent stem cells (PSCs), the presence of residual undifferentiated stem cells or proliferating neural progenitor cells (NPCs) with rostral identity has remained a major challenge. Here we reported the generation of an LMX1A knock-in GFP reporter human embryonic stem cell (hESC) line that marks the early dopaminergic progenitors during neural differentiation. Purified GFP positive cells in vitro exhibited expression of mRNA and proteins that characterized and matched the midbrain dopaminergic identity. Further proteomic analysis of enriched LMX1A+ cells identified several membrane associated proteins including CNTN2, enabling prospective isolation of LMX1A+ progenitor cells. Transplantation of hPSC-derived purified CNTN2+ progenitors enhanced dopamine release from transplanted cells in the host brain and alleviated Parkinson’s disease symptoms in animal models. Our study establishes an efficient approach for purification of large numbers of hPSC-derived dopaminergic progenitors for therapeutic applications.
Project description:Identify gene expression patterns of different neural precursor cells derived from human embryonic stem cells. The total of 12 samples were analyzed which could be grouped into 4 groups