Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1006515 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Facial infiltrating lipomatosis (FIL) is a congenital disorder characterized by unilateral facial enlargement. Although next-generation sequencing has revealed that the pathogenesis of FIL is associated with phosphatidylinositol 3-kinase catalytic subunit alpha (PIK3CA) mutations, the underlying molecular mechanisms remain undetermined. We found that the adipose tissue in FIL patients demonstrated tissue infiltration accompanied by adipocytes hypertrophy and increased lipid accumulation. All FIL-ADSCs harboured PIK3CA mutations. Compared to ADSCs obtained from normal subcutaneous adipose tissue, FIL-ADSCs exhibited a greater capacity for adipogenesis. Suppression of PIK3CA resulted in a reduction in the adipogenic potential of FIL-ADSCs. Furthermore, WX390, a novel dual-target PI3K/mTOR inhibitor, was found to impede PIK3CA-mediated adipogenesis both in vivo and in vitro. RNA-seq revealed that the expression of transient receptor potential vanilloid subtype 1 (TRPV1) was upregulated after PI3K pathway inhibition, and overexpression and activation of TRPV1 both inhibited adipogenesis of FIL-ADSCs. Our study showed that PIK3CA mutations promoted adipogenesis in FIL-ADSCs and that this effect was achieved by suppressing the expression of TPRV1. Pathogenesis experiments suggested that WX390 may serve as an agent for the treatment of FIL.
2024-06-28 | GSE253170 | GEO
Project description:[1] Microarray analysis in the rat myocardial tissue: 124I-HIB transplanted MI model Vs. phosphate buffered saline (PBS) injected myocardial infarction (MI) model Vs. Sham operated model [2] Microarray analysis in the rat adipose derived stem cells: 124I-HIB-labeled ADSCs Vs. Unlabeled ADSCs [1] We investigated the change of gene expression profile in sham operated-, PBS injected- and 124I-HIB-labeled ADSCs transplanted myocardium in rat myocaridial infarction (MI) model. [2] We compared gene expression profile with 124I-HIB labeled ADSCs and unlabeled ADSCs in vitro.
2015-01-06 | E-GEOD-64692 | biostudies-arrayexpress
Project description:Single cell sequencing of stromal vascular fraction from facial infiltrating lipomatosis and normal facial adipose tissue
| PRJNA1112852 | ENA
Project description:Recent researches identified the existence of adipose derived stem cells (ADSCs) in adipose tissue. Perivascular ADSCs (PV-ADSCs) locate around vasculatures and can differentiate into vascular lineages. However, the detailed cellular heterogeneity within PV-ADSCs has not been investigated. Therefore, we performed single-cell profiling of subcutaneous (S-) and perivascular (PV-) ADSCs from wild-type and obese mice. After referring to the clustering strategies from other ADSCs’ single-cell data, we provided a more comprehensive picture and trajectory, especially for PV-ADSCs. Both single-cell analysis and in vitro experiments revealed that S-ADSCs from obese mice had impaired abilities of cell migration and proliferation compared to wild-type S-ADSCs. PV-ADSCs have distinctively intrinsic properties. We uncovered 4 subpopulations of PV-ADSCs including Dpp4+, Col4a2+, Clec11a+ and Sult1e1+ cells. Notably, the differentiative function of PV-ADSCs towards vascular lineages was mainly attributed to the existence of Clec11a+ subpopulation, which highly expressed Mgp. The present study provided an integrative view of the ADSCs’ variance from the perspective of origins and obesity.
2022-02-23 | GSE172336 | GEO
Project description:Adipogenesis occurs through a specific gene program in undifferentiated fat progenitors. We hypothesized that the properties of the fat progenitors are regulated by hox genes, the developmental genes essential in different tissue stem cells. Their biased expression in white and brown fat implies roles in distinguishing the two fat types. Among 39 Hox genes, Hoxc8 is highly enriched in undifferentiated adipose tissue stem cells (ADSCs) and down-regulated in differentiated adipocytes. Forced expression of Hoxc8 suppressed adipocyte differentiation of ADSCs. Using microarrays, we investigated the effect of Hoxc8 overexpression on global transcripts in ADSCs. We compared among four groups: untreated ADSCs, adipogenic induction media (MDI)-treated ADSCs, MDI-treated ADSC-vector and MDI-treated ADSC-Hoxc8. A number of, but not all, adipogenesis-related genes are suppressed by Hoxc8. This dataset illustrates the global effect of Hoxc8, a developmental transcription factor, on the expression of adipogenesis-related genes. Gene expression was compared among untreated ADSCs (control), adipogenic induction media-treated ADSCs, adipogenic induction media-treated ADSC-vector (ADSCs transduced with control vector), and adipogenic induction media-treated ADSC-Hoxc8 (ADSCs transduced with human Hoxc8). Total RNA was isolated from ADSCs using the Qiagen RNeasy kit (Qiagen). At NimbleGen, quality and yield were verified before cDNA synthesis and Cy3-end labeling. The labeled cDNA samples were hybridized to Homo sapiens 4-Plex arrays (Roche NimbleGen, A4487001-00-01) that represent 24,000 human genes. Raw data files for each sample were normalized and background-corrected using a Robust Multi-Array Analysis as implemented by NimbleScan software. Students’ two-tail t-tests were conducted among the samples for each transcript and fold-change was determined. Transcripts whose abundance was significantly altered (P < 0.05) and an absolute fold change greater than 2 were defined as differentially regulated.
2010-06-18 | E-GEOD-22429 | biostudies-arrayexpress
Project description:Facial infiltrating lipomatosis is characterized by excessive growth of adipose tissue, The etiology is associated with somatic PIK3CA variant, but the specific mechanisms are not yet fully understood. In this study, we collected facial adipose tissue from both FIL patients and non-FIL individuals, isolated the stromal vascular fraction (SVF) and performed single-cell transcriptome sequencing on these samples. We mapped out the cellular landscape within the SVF and specifically focused on a deeper analysis of fibro-adipogenic precursor cells (FAPs).
2024-07-06 | GSE267777 | GEO
Project description:To investigate the function of N6-methyladenosine methylome (m6A) in adipose stem and progenitor cells isolated from facial infiltrating lipomatosis (FIL-ASPCs), we analyzed m6A enrichment level in FIL-ASPCs with or without FTO inhibitor (FTO-IN-1) treatment through methylated RNA immunoprecipitation (MeRIP) sequencing.
2025-08-08 | GSE291128 | GEO
Project description:Adipose tissue harbours a significant number of multipotent adult stem cells of mesenchymal origin known as adipose-derived stem cells (ADSCs). Broad differentiation potential and convenient accessibility of ADSCs make them an attractive source of adult mesenchymal stem cell for regenerative medicine and cell developmental plasticity research. Genome-wide microarray expression profiling was performed to identify genes deregulated during osteogenic differentiation of ADSCs to evaluate developmental plasticity of these cells. Dynamics of epigenetic modifications were analyzed in parallel and associated with the gene expression profile. Gene expression profile was analyzed in adipose-derived stem cells (ADSCs) differentiated into osteogenic lineage from 3 donors and compared to undifferentiated cells from the same donors.
2015-01-11 | E-GEOD-63754 | biostudies-arrayexpress
Project description:Endothelial cells (ECs) have been reported to be a source of adipose tissue-derived stromal cells (ADSCs), and ADSCs expressing endothelial markers have been suggested to originate from ECs. To further investigate the lineage relationship between ECs and ADSCs in postnatal mice, we performed single-cell RNA sequencing (scRNA-seq) on ECs and ADSCs isolated from inguinal and gonadal white adipose tissues (IWATs and GWATs) of 12-week-old wild-type C57BL/6J mice, and analyzed the expression of endothelial markers in ADSCs.
2025-03-05 | GSE168334 | GEO