Project description:Human intestinal organoids (hIOs) derived from human pluripotent stem cells (hPSCs) have immense potential as a source of intestines. However, due to problems obtaining mature adult-like cells from hPSCs, effective strategies for the maturation of hIOs with improved functionalities must be developed. We established conditions that enable the in vitro maturation of hIOs derived from hPSCs, recapitulating the essential features of intestinal tissue. The maturity of the hPSC-derived hIOs was enhanced by the in vitro maturation in our co-culture system, evidenced by transcriptional changes observed in our microarray data. Global transcription of in vitro-matured hIOs is highly similar to that of adult human small intestine (hSI). Compared to control hIOs, in vitro-matured hIOs exhibited significant increases in the expression of intestinal maturation markers, major transporters, and key enzymes for drug absorption and first-pass metabolism.
Project description:In vitro human pluripotent stem cell derived intestinal organoids (HIOs) are immature and lack for diverse differentiated secretory cell types. We would like to test the hypothesis whether addition of a mesenchyme secreting ligand which is depleted in canonical organoid culture media could increase the maturity and secretory cell type diversity in HIOs in vitro. To do this, we adapted the directed differentiation protocol of HIOs by growing HIOs in media with EGF, NOGGIN, R-spondin-1 (ENR) for 30 days, isolated epithelial cells with dispase, recovered them with adult intestinal enteroid media with Wnt-3A (WENR). Then we introduced the mesenchyme secreting ligand NRG1 to the established enteroid culture (WENR+NRG1) and compared them to the enteroids grown in control condition (WENR).
Project description:Human intestinal organoids (hIOs) resemble the human intestine physiologically and structurally. We recently present an in vitro maturation technique for generating mature and functional hIOs from human pluripotent stem cells (hPSCs). Here, we investigated the mechanisms of STAT3 for inducing in vitro maturation of hIOs. Using CRISPR/Cas9-mediated gene editing, STAT3 knockout (KO) human embryonic stem cell (hESC) lines were generated and characterized. By genome-wide microarray analyses, STAT3 KO hIOs showed markedly different profiles from the in vitro matured hIOs and human small intestine and the majority of genes, which are associated with intestinal development and functions, were downregulated by STAT3 KO. This study reveals important signaling pathways for the maturation of hIOs derived from hPSCs.
Project description:Here, we used single-nuclei RNA-sequencing (snRNA-seq) to profile pluripotent stem cell-derived human intestinal organoids (HIOs) grown in media comprised of minigut media + 10 ng/ml EREG in vitro for 28 days and transplanted into the kidney capsule of a mouse for 12 weeks.
Project description:Here, we used single cell RNA-sequencing (scRNA-seq) to profile pluripotent stem cell derived human intestinal organoids (HIOs) grown in matrigel or a non-adhesive alginate hydrogel after 28 days of in vitro growth. Additionally, we used scRNA-seq to profile HIOs derived in the presence of Neuregulin 1 (NRG1) and/or EGF after 40 days of in vitro growth.
Project description:Here, we used single-cell RNA-sequencing (scRNA-seq) to profile pluripotent stem cell derived human intestinal organoids (HIOs) grown in suspension culture after 28 days of in vitro growth. Grown in minigut media supplemented with EGF.
Project description:Here, we used single-cell RNA-sequencing (scRNA-seq) to profile pluripotent stem cell-derived human intestinal organoids (HIOs) grown in media comprised of minigut media + varying concentrations of Epiregulin (EREG) 1 ng/ml, 10 ng/ml, 100 ng/ml after 28 days of in vitro growth.
Project description:Here, we used single-cell RNA-sequencing (scRNA-seq) to profile pluripotent stem cell derived human intestinal organoids (HIOs) grown in an alginate matrix after 3, 7, and 14 days of in vitro growth. Samples were grown in minigut media supplemented with either ENR or EGF.
Project description:To study the species difference in developing intestine between human and chimpanzees, we performed scMultiome profiling on developing human intestine tissues and matched intestinal epithelial only organoids (also known as enteroids), and performed scRNA-seq and scATAC-seq measurements on human and chimpanzee pluripotent stem cell derived intestinal multilineage organoids. We have in vitro organoids and organoids that are further transplanted into mice for further maturation. We also performed scSTARR-seq based on developing human enteroids to quantify the enhancer activity of selected regulatory regions at different epithelial cell types or with different genetic variants.