Project description:The study of early post-implantation human embryo development is limited by the scarcity of embryo samples and ethical restrictions. We developed a human pluripotent stem cell (hPSC)-based microfluidic platform to model several developmental processes during this stage. We applied single-cell mRNA sequencing technique to examine the transcriptomes of posteriorized embryonic-like sacs obtained using the microfluidic platform, as well as of amniotic ectoderm-like cells generated using a Transwell method and human embryonic stem cells (H9 hESCs).
Project description:In this study, we generated wildtype H9 hESC derived cardiomyocytes (CM) and neural stem cells (NSC) by in vitro differentiation. Global gene expression profiles were compared among undifferentiated H9 hESC and the derived CM and NSC. Comparison of global gene expression profiles of undifferentiated H9 hESC and the derived CM and NSC populations.
Project description:In this study, we generated wildtype H9 hESC derived cardiomyocytes (CM) and neural stem cells (NSC) by in vitro differentiation. Global gene expression profiles were compared among undifferentiated H9 hESC and the derived CM and NSC.
Project description:Genetic mutations on leucine-rich repeat kinase 2 (LRRK2) have been associated with an increased risk of Parkinson's disease. The Gly2019Ser (G2019S) mutation on LRRK2 gene is a relatively common cause of familial Parkinson's disease in Caucasian population. In this study, we generated H9 hESC harboring LRRK2 (G2019S) mutation by gene knockin. Wildtype and LRRK2 mutant hESC were differentiated into NSC using a chemically defined protocol.
Project description:Conventional conditions to maintain human embryonic stem cells (hESC) imply the use of inactive mouse embryonic fibroblast (iMEF) as a feeder layer. However, it has suggested that the culture of hESC on iMEF could be an artifact that does not correspond to the in vitro counterpart of the human epiblast. We previously derived and maintained human embryonic stem cells (Amicqui-1 hESC line) on a feeder layer of human amniotic epithelial cells (hAEC). However, the mechanisms involved in the interaction between both cell types to promote the pluripotency still remain unknown. To elucidate if the transcription profile of hESC on hAEC differs from conventional conditions on iMEF, we carried out RNA-seq of Amicqui-1 hESC on both feeder layer conditions (AMIQ hESC-iMEF and AMIQ hESC-hAEC) and on their respective conditioned media (AMIQ hESC-hAEC-CM and AMIQ hESC-iMEF-CM). In this experiment we included H1-hESC-iMEF and hAEC alone.
Project description:Use of single-cell transcriptomics to measure how well medium spiny projection neurons, derived from human ESC, recapitulate human striatal development in vivo. This in vitro single-cell dataset was derived after exposing hESC lines (H9) to a novel striatal differentiation protocol and performing single-cell RNA-seq after 15 days and 25 days of differentiation.
Project description:Extracellular vesicles (EV) are secreted by nearly every mammalian cell type and contain a wealth of bioactive cargo capable of modulating target cell physiology and function though a variety of paracrine signaling mechanisms (Leavitt et al., 2019). Human embryonic stem cell (hESC)-derived extracellular vesicles (hESC-derived EV), were extracted from the hESC line H9 (WA09 Wicell Research Institute, Inc., Madison, WI). We analyzed the bioactive protein cargo to identify components that help to resolve radiation-induced injury to the lung in mice when injected in vivo.