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Derivation of endothelial colony forming cells from human pluripotent stem cells

ABSTRACT: Human induced pluripotent stem (hiPS) cells and human embryonic stem (hES) cells differentiate into cells of the endothelial lineage, but derivation of cells with human umbilical cord blood endothelial colony forming cell (ECFC)-like properties has not been reported. Here we describe a novel serum- and stromal cell-free ECFC differentiation protocol for the derivation of clinically relevant numbers of ECFCs (> 108) from hiPS and hES cells. We identified NRP-1+CD31+ selected cells that displayed a stable endothelial phenotype exhibiting high clonal proliferative potential, extensive replicative capacity, formation of human vessels that inosculated with host vasculature upon transplantation, but lacking in teratoma formation in vivo. We also identified NRP-1-VEGF165-KDR-mediated activation of KDR as a critical mechanism for the emergence and derivation of ECFCs from hiPS and hES cells. This protocol advances the field by generating highly replicative but stable endothelial cells for use as a potential cell therapy for human clinical disorders.

ORGANISM(S): Homo sapiens

PROVIDER: GSE49074 | GEO | 2014/07/18

SECONDARY ACCESSION(S): PRJNA212913

REPOSITORIES: GEO

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Derivation of endothelial colony forming cells from human pluripotent stem cells

Project description:Human induced pluripotent stem (hiPS) cells and human embryonic stem (hES) cells differentiate into cells of the endothelial lineage, but derivation of cells with human umbilical cord blood endothelial colony forming cell (ECFC)-like properties has not been reported. Here we describe a novel serum- and stromal cell-free ECFC differentiation protocol for the derivation of clinically relevant numbers of ECFCs (> 108) from hiPS and hES cells. We identified NRP-1+CD31+ selected cells that displayed a stable endothelial phenotype exhibiting high clonal proliferative potential, extensive replicative capacity, formation of human vessels that inosculated with host vasculature upon transplantation, but lacking in teratoma formation in vivo. We also identified NRP-1-VEGF165-KDR-mediated activation of KDR as a critical mechanism for the emergence and derivation of ECFCs from hiPS and hES cells. This protocol advances the field by generating highly replicative but stable endothelial cells for use as a potential cell therapy for human clinical disorders. Transcriptome sequencing of undifferentiated day 0 hiPS cells, Day 3 differentiated hiPS-derived mesoderm proginator cells, Day 12 hiPS-derived NRP-1+CD31+ cells, Day 12 H9-hES-derived NRP-1+CD31+ cells and cord blood-derived Endothelial colony forming cells.

2014-07-18 | E-GEOD-49074 | biostudies-arrayexpress

Global gene expression differences between blood- and lymphatic-specific endothelial colony forming cells

Project description:The identification of circulating endothelial progenitor cells has led to speculation regarding their origin as well as their contribution to neovascular development. Two distinct types of endothelium make up the blood and lymphatic vessel system. However, it has yet to be determined whether there are distinct lymphatic-specific circulating endothelial progenitor cells. We isolated circulating endothelial colony forming cells (ECFCs) from whole peripheral blood. These cells are endothelial in nature, as defined by their expression of endothelial markers and their ability to undergo capillary morphogenesis in three-dimensional culture. A subset of isolated colonies express markers of lymphatic endothelium, including VEGFR-3 and Prox-1, with low levels of VEGFR-1, a blood endothelial marker, while the bulk of the isolated cells express high VEGFR-1 levels with low VEGFR-3 and Prox-1 expression. The different isolates have differential responses to VEGF-C, a lymphatic endothelial specific cytokine, strongly suggesting that there are lymphatic specific and blood specific ECFCs. Global analysis of gene expression revealed key differences in the regulation of pathways involved in cellular differentiation between blood and lymphatic-specific ECFCs. These data indicate that there are two distinguishable circulating ECFC types, blood and lymphatic, which are likely to have discrete functions during neovascularization. RNA was isolated from 2 blood-specific ECFC cell lines and 2 lymphatic-specific ECFC cell lines 3 separate times each

2014-06-23 | E-GEOD-54416 | biostudies-arrayexpress

DNA methylation profiling of cord blood progenitor endothelial cells from overweight and GDM pregnancies

Project description:Fetal progenitor endothelial cells (endothelial colony forming cells; ECFC) are recruited for repair, vascular growth and angiogenesis and their high abundance perinatally suggests a function in postnatal vasculogenesis and angiogenesis. In this study we profiled ECFCs from pregnancies of control, overweight and diabetic mothers to study if adverse pregnancies are associated with epigenetic variation in ECFCs.

2021-12-14 | GSE180355 | GEO

Distinct phenotype and proteomic signature of peripheral blood-endothelial colony-forming cells of subjects with varied cardiovascular disease risks

Project description:Endothelial progenitor cells (EPCs) are circulating endothelial precursors shown to incorporate into foci of neovascularisation. Herein, we describe phenotypic characteristics of an EPC sub-type called endothelial colony-forming cells (ECFCs). Peripheral blood-isolated ECFCs expressed endothelial and progenitor surface antigens and displayed cobblestone-patterned colonies with clonal proliferative and angiogenic capacities in vitro. ECFCs demonstrated endothelial cell-like shear stress responses including cell alignment and PECAM-1 expression. Proteomic comparison with an endothelial reference population (human umbilical vein endothelial cells) confirmed a similar proteomic profile. Hierarchical clustering revealed two distinct ECFC clusters with differences in cell growth, proliferation and angiogenesis capacities. The cluster with compromised functionality was also associated with elevated blood pressure and impaired lipid profile. Our findings described an endothelial-like phenotype of blood-derived ECFCs with distinctive proteomic signatures based on cellular and clinical characteristics. ECFCs may aid in identifying novel mechanisms associated with cardiovascular disease risk and new targets to enhance angiogenesis.

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Human umbilical cord blood-derived endothelial colony forming cells under serum-free conditions

Project description:Derivation and expansion of human umbilical cord blood-derived endothelial colony forming cells under serum-free conditions - a transcriptome analysis. Endothelial colony forming cells (ECFCs) were isolated from term umbilical cord blood units. ECFCs were expanded under standard, fetal bovine serum (FBS) containing endothelial medium, or transferred to chemically defined endothelial media without FBS. Microarray expression profiling was applied to compare the transcriptome profiles in FBS-containing versus FBS-free culture. Comparison of the expression patterns of ECFCs that were either cultured in FBS-containing medium or in serum-free medium (five replicates each).

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Gene expression changes in cord blood-derived ECFCs in response to in vitro senescence stimuli for the identification of novel reference genes

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2019-03-27 | GSE125792 | GEO

Human umbilical cord blood-derived endothelial colony forming cells under serum-free conditions

2010-06-29 | GSE20504 | GEO

Mir-130a potentiates the reparative properties of human endothelial colony forming cells facing hypoxia via VEGFR2 and STAT3

Project description:Hypoxia controls reparative angiogenesis. MiRNAs are master regulators of gene expression in hypoxia and angiogenesis. However, we do not yet have a clear understanding of how hypoxia-induced miRNAs modulate vasoreparative processes. Here, we identify miR-130a as a mediator of the hypoxic response in human primary endothelial colony forming cells (ECFCs), a well-characterized subtype of endothelial progenitor. Under hypoxic conditions, miR-130a overexpression enhances ECFC pro-angiogenic capacity in vitro and potentiates their vasoreparative properties in vivo. Mechanistically, miR-130a orchestrates upregulation of VEGFR2, activation of STAT3-dependent transcription, and accumulation of HIF1α via translational inhibition of DDX6. These findings unveil a new role for miR-130a in hypoxia, whereby it modulates the VEGFR2/STAT3/HIF1α axis to increase the vasoregenerative capacity of ECFCs.

2022-12-06 | GSE142123 | GEO

Global gene expression differences between blood- and lymphatic-specific endothelial colony forming cells

2014-06-23 | GSE54416 | GEO

Transient naive reprogramming corrects hiPS cells functionally and epigenetically [WGBS]

Project description:Cells undergo a major epigenome reconfiguration when reprogrammed to human induced pluripotent stem cells (hiPS cells). However, the epigenomes of hiPS cells and human embryonic stem (hES) cells differ significantly, which affects hiPS cell function. These differences include epigenetic memory and aberrations that emerge during reprogramming, for which the mechanisms remain unknown. Here we characterized the persistence and emergence of these epigenetic differences by performing genome-wide DNA methylation profiling throughout primed and naive reprogramming of human somatic cells to hiPS cells. We found that reprogramming-induced epigenetic aberrations emerge midway through primed reprogramming, whereas DNA demethylation begins early in naive reprogramming. Using this knowledge, we developed a transient-naive-treatment (TNT) reprogramming strategy that emulates the embryonic epigenetic reset. We show that the epigenetic memory in hiPS cells is concentrated in cell of origin-dependent repressive chromatin marked by H3K9me3, lamin-B1 and aberrant CpH methylation. TNT reprogramming reconfigures these domains to a hES cell-like state and does not disrupt genomic imprinting. Using an isogenic system, we demonstrate that TNT reprogramming can correct the transposable element overexpression and differential gene expression seen in conventional hiPS cells, and that TNT-reprogrammed hiPS and hES cells show similar differentiation efficiencies. Moreover, TNT reprogramming enhances the differentiation of hiPS cells derived from multiple cell types. Thus, TNT reprogramming corrects epigenetic memory and aberrations, producing hiPS cells that are molecularly and functionally more similar to hES cells than conventional hiPS cells. We foresee TNT reprogramming becoming a new standard for biomedical and therapeutic applications and providing a novel system for studying epigenetic memory.

2023-08-11 | GSE159296 | GEO

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