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Impact of a pro-inflammatory stimulus on the miRNA composition of extracellular vesicles (EV) from stem cells from apical papilla (SCAP)

ABSTRACT: Impact of a pro-inflammatory stimulus on the miRNA composition of extracellular vesicles (EV) from stem cells from apical papilla (SCAP)

PROVIDER: PRJNA860164 | ENA |

REPOSITORIES: ENA

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Impact of a pro-inflammatory stimulus on the miRNA composition of extracellular vesicles (EV) from stem cells from apical papilla (SCAP)

Project description:To investigate the impact of a pro-inflammatory stimulus (TNFα and IFNγ, 20 ng/ml) on miRNA in SCAP-EV, we isolated EV from non-activated and activated SCAP and then extracted miRNA

2022-07-20 | GSE208577 | GEO

Transcriptional Profliing of small molecules induced endothelial cells of stem cells from apical papilla (SCAP-ECs), stem cells from apical papilla (SCAP) and human vein endothelial cells (HUVECs)

Project description:Recently, a new strategy has been developed to directly reprogram one cell type towards targeted cell type by using different combinations of small molecule compounds. Here we attempted to induce stem cells from apical papilla (SCAP) into endothelial cells (ECs) by the same strategy. We developed a set of small molecules and growth factors that facilitates the conversion of SCAP into stable endothelial lineage. The SCAP-derived endothelial cells (SCAP-ECs) expressed some up-regulated endothelial specific genes and proteins, exhibited the ability to form functional tubular-like structures in vitro, and contributed to generate blood vessels in vivo. The aim of this study is to compare the ECs-related gene profile of SCAP, SCAP-derived ECs and HUVECs (primary ECs) and to explore whether SCAP-derived ECs showed enriched ECs gene expression.

2021-12-31 | GSE149930 | GEO

Expression data of microRNA from human stem cells from apical papilla

Project description:Osteo/odontogenic differentiation is a key process of human stem cells from apical papilla (SCAP) in tooth root development. Emerging evidence indicates microRNAs (miRNAs) play diverse roles in osteogenesis. However, their functions in osteo/odontogenic differentiation of SCAP remain to be elucidated. We used miRNA microarray to analysis differentially expressed miRNAs in order to investigate the role of miRNAs in SCAP osteo/odontogenic differentiation and underlying mechanism.

2021-01-01 | GSE154466 | GEO

Transcriptional Profliing of small molecules induced endothelial cells of stem cells from apical papilla (SCAP-ECs), stem cells from apical papilla (SCAP) and human vein endothelial cells (HUVECs)

Project description:Transcriptional Profliing of small molecules induced endothelial cells of stem cells from apical papilla (SCAP-ECs), stem cells from apical papilla (SCAP) and human vein endothelial cells (HUVECs)

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The human dental apical papilla promotes spinal cord repair through a paracrine mechanism

Project description:Traumatic spinal cord injury is an overwhelming condition that strongly and suddenly impacts the patient’s life and her/his entourage. There are currently no predictable treatments to repair the spinal cord, while many strategies are proposed and evaluated by researchers throughout the world. One of the most promising avenues is the transplantation of stem cells, although its therapeutic efficiency is limited by several factors, among which cell survival at the lesion site. In our previous study, we showed that the implantation of a human dental apical papilla, residence of stem cells of the apical papilla (SCAP), supported functional recovery in a rat model of spinal cord hemisection.

2021-12-20 | GSE191140 | GEO

Expression data of microRNA from human stem cells from apical papilla

Project description:Expression data of microRNA from human stem cells from apical papilla

| PRJNA646393 | ENA

The human dental apical papilla promotes spinal cord repair through a paracrine mechanism

Project description:The human dental apical papilla promotes spinal cord repair through a paracrine mechanism

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microRNA profile of extracellular vesicles derived from control vehicle- and LIPUS-induced stem cells from the apical papilla

Project description:Low intensity pulsed ultrasound (LIPUS) is shown to promote osteogenic differentiation and antiinflammation of periodontal mesenchymal stromal cells. We found extracellular vesicles (EVs) derived from LIPUS-induced stem cells from apical papilla (SCAPs) also have stronger anti-inflammatory and osteogenic effects in vitro and in vivo. To obtain clues on whether microRNA (miR) of EVs contribute to stronger anti-inflammatory and osteogenic effects, we analyzed miR expression in EVs from control- and LIPUS-induced SCAPs by deep sequencing. RNA-sequencing suggests that the LIPUS-EVs induce stronger osteogenic differentiation and antiinflammation by using their cargos, including upregulated osteogenic miRNAs to activate the PI3K/Akt and MAPK signaling pathways, and upregulated anti-inflammatory miRNAs to inhibit the TNF-α signaling pathways.

2022-07-02 | GSE188347 | GEO

Deletion of Scap in Alveolar Type II Cells Influences Lung Lipid Homeostasis and Identifies a Compensatory Role for Pulmonary Lipofibroblasts

Project description:Pulmonary function after birth is dependent upon surfactant lipids that reduce surface tension in the alveoli. The sterol-responsive element-binding proteins (SREBPs) are transcription factors regulating expression of genes controlling lipid homeostasis in many tissues. To identify the role of SREBPs in the lung, we conditionally deleted the SREBP cleavage-activating protein gene, Scap, in respiratory epithelial cells (Scap∆/∆) in vivo. Prior to birth (E18.5), deletion of Scap decreased the expression of both SREBPs and a number of genes regulating fatty acid and cholesterol metabolism. Nevertheless, Scap∆/∆ mice survived postnatally, surfactant and lung tissue lipids being substantially normalized in adult Scap∆/∆ mice. Although phospholipid synthesis was decreased in type II cells from adult Scap∆/∆ mice, lipid storage, synthesis, and transfer by lung lipofibroblasts were increased. mRNA microarray data indicated that SCAP influenced two major gene networks, one regulating lipid metabolism and the other stress-related responses. Deletion of the SCAP/SREBP pathway in respiratory epithelial cells altered lung lipid homeostasis and induced compensatory lipid accumulation and synthesis in lung lipofibroblasts. To identify the role of SREBPs in the lung, we conditionally deleted the SREBP cleavage-activating protein gene, Scap, in respiratory epithelial cells (Scap∆/∆) in vivo.Lung cRNA was hybridized to the murine genome MOE430 V2 chips.

2011-01-08 | E-GEOD-26496 | biostudies-arrayexpress

Liver gene expression profile of wild type, liver-specific PTEN KO, SCAP KO and PTEN/SCAP double KO mice.

Project description:Nonalcoholic steatohepatitis (NASH), a severe form of nonalcoholic fatty liver disease, is characterized by hepatic steatosis and hepatocellular injury and progresses to cirrhosis and hepatocellular carcinoma. Sterol regulatory element-binding proteins (SREBPs) are master regulators of lipogenesis. Liver-specific PTEN knockout (KO) mice show constitutive upregulation of SREBP through PI3K-Akt pathway activation, leading to spontaneous fatty liver and subsequent HCC development. SREBP cleavage-activating protein (SCAP) plays a critical role in SREBP activation. We sought to determine the impact of SREBP inhibition on NASH and HCC development. To this end, we additionally inhibited SREBP pathway in liver-specific PTEN mice by ablating SCAP and generated liver-specific PTEN/SCAP double KO (DKO) mice. However unexpectedly, inhibition of SCAP/SREBP pathway markedly exacerbated liver injury (5weeks), fibrosis (5months), and carcinogenesis (7 months) in PTEN KO mice. To elucidate the mechanisms of liver injury in liver-specific PTEN/SCAP DKO mice, we conducted transcriptome analyses of the livers.

2022-04-05 | GSE169104 | GEO

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