Project description:Adipose-derived stem cells are angiogenic and attractive for therapeutic angiogenesis. However, ADSCs contain several subsets according to expression pattern of surface markers. We identified CD271 (LNGFR) can isolate ADSCs with superior capacity for angiogenesis. Therefore, we aimed to compare gene expression profile between CD271+ and CD271- ADSCs.
Project description:This project is a report of protemoic data of secretome from human adipose tissue-derived stem cells. The ADSCs were cultured in serum-free condition, and LC-MS/MS identification was conducted to analyze the ingredients in the secretome.
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.
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.
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
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.
Project description:Dedifferentiated fat (DFAT) cells, established in vitro from mature adipocytes, exhibit properties of multipotent mesenchymal stem/stromal cells (MSCs), such as the ability to differentiate into multiple mesenchymal lineages. Although DFAT cells exhibit certain properties of proliferative progeny, at present there is only limited knowledge about their characteristics as MSCs because those cells are considered to be potential artifacts of cell culture. To elucidate the identity of DFAT cells, we compared gene expression profiles of human DFAT cells and adipose-derived stem/stromal cells (ADSCs) established using adipose tissue from the same donors. Microarray analysis showed that the global RNA expression profiles of human DFAT cells were very similar to those of ADSCs, a representative MSC, despite being committed adipocyte progenitors. Subcutaneous adipose tissues that were obtained during surgical operation for non-malignant disease were donated by 3 patients after obtaining informed consent. Three sets of DFAT cells and ADSCs, each derived from adipose tissue from the same donor were used for RNA extraction and subsequent microarray analysis.
Project description:Dedifferentiated Fat Cells (DAs) and Adipose-derived stem cells (ADSCs) are two main stem cells derived from adipose tissue. In order to explore whether there is difference in transcriptome between the two cells after multiple subcultures, and which kind of cell should be selected for different regenerative aim, high-throughput RNAseq were conducted to find differentially expressed genes. The subcutaneous adipose tissue of three young women (23-30 years old)patients with normal BMI (19-24) were obtained during liposuction operation on abdomen or thigh. Stromal Vascular Fraction (SVF) and adipocytes were obtained by collagenase digestion, ADSCs was cultured regularly, and DAs were cultured by a modified ceiling culture method. Only 186 genes with different expression between the two groups were obtained.The downregulated gene number of DAs vs. ADSCs was 112 and the upregulated number was 74. Many of the differentially expressed genes are involved in the biological functions such as transcription regulator, protein translation regulation, cytokine interaction and energy metabolism regulation. These data may provide a foundation for further clinical administration of stem cells derived from adipose tissues.
Project description:Macrodactyly is a congenital malformation characterized by enlargement of bone and soft tissues in limbs, typically with excessive accumulation of adipose tissues. Although gain-of-function mutation of PIK3CA has been identified in macrodactyly, the mechanism of PIK3CA mutation in adipose accumulation is poorly understood. In this study, we found that adipocytes from macrodactyly were more hypertrophic than those observed in polydactyly. PIK3CA (H1047R) activating mutation and enhanced activity of PI3K/AKT pathway were detected in macrodactylous adipose-derived stem cells (Mac-ADSCs). To identify the key downstream effectors of PIK3CA activation-mediated adipogenesis in Mac-ADSCs, we examined the transcriptome of Mac-ADSCs, BYL-719 treated Mac-ADSCs and Pol-ADSCs by RNA-Seq analysis.
Project description:The acidic microenvironment plays a key role to result in the poor survival and limited function of transplanted stem cells in ischemic diseases.In this study, different pH levels of medium were performed to treat adipose-derived stem cells (ADSCs) with 24/48h time- exposure, to explore the effect of extracellular acidosis on ADSCs.