Analysis of differentially expressed genes between human Bone Marrow Stromal cells (hBMSC) and relative fully differentiated adipocytes from two healthy donor
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ABSTRACT:
ORGANISM(S): Homo sapiens
PROVIDER: GSE104536 | GEO | 2018/04/17
REPOSITORIES: GEO
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Project description:Analysis of differentially expressed genes between human Bone Marrow Stromal cells (hBMSC) and relative fully differentiated adipocytes from two healthy donor
| PRJNA412986 | ENA
Project description:Screening for potential target proteases of vaspin revealed rapid and specific cleavage within the vaspin N-terminus, releasing short peptides with cell penetrating activity. For microarray analysis to determine the effect of a vaspin-derived peptide on gene expression in adipocytes, fully differentiated primary mouse adipocytes from subcutaneous AT were treated with 100 nM of peptide for 24 h before harvesting, RNA isolation and microarray analysis. Solvent (water) treated cells served as controls.
2021-03-31 | E-MTAB-9592 | biostudies-arrayexpress
Project description:Telmisartan is a well-known anti-hypertensive drug acting as an angiotensin 2 receptor blocker (ARB), but it also possesses partial PPARγ agonistic activity and induces insulin sensitivity. In the present study, we investigated the effects of telmisartan on macrophage polarization in association with its browning capacity, because PPARγ plays a key role in M2 polarization and in the browning of white adipocytes. Telmisartan induced M2 marker expression in murine macrophages concentration dependently, which was confirmed by flow cytometry. Both PPARγ and PPARδ activations appear to be responsible for telmisartan-induced M2 polarization. Telmisartan-treated conditioned medium (Tel-CM) of RAW264.7 cells and of bone marrow derived macrophages (BMDM) induced the expressions of browning markers in fully differentiated white adipocytes with reduced lipid droplets, and increased oxygen consumption rate and mitochondrial biogenesis. Levels of catecholamines (CA) released into the conditioned medium as well as intracellular tyrosine hydroxylase (TH) mRNAs were found to be increased by telmisartan, and browning effects of Tel-CM were lessened by β3 receptor antagonist (L-748,337), suggesting CA secreted into CM play a role in Tel-CM-induced adipocyte browning. Acute administration of telmisartan (2 weeks, p.o.) to C57BL/6J mice increased the expressions of browning markers and M2 markers in white adipose tissues, whereas macrophage depletion by clodronate liposome pretreatment attenuated the telmisartan-induced expressions of browning markers. Together, telmisartan was observed to induce the browning of fully differentiated white adipocytes, at least in part, via PPAR activation-mediated M2 polarization.
| S-EPMC6362091 | biostudies-literature
Project description:To identify differentially expressed proteins in the secretome of differentiated SGBS cells human adipocytes) in response to iron.
2018-04-23 | PXD006341 | Pride
Project description:Stearoyl-CoA desaturase (SCD) is the rate-limiting enzyme catalyzing the conversion of saturated fatty acids palmitate and stearate to monounsaturated fatty acids palmitoleate and oleate. During adipocyte differentiation, SCD expression increases concomitantly with several transcription factors and lipogenic genes. We used microarrays to examine gene expression in differentiated pre-adipocytes treated with and without an SCD inhibitor. On day 7 of adipocyte differentiation, total RNA was extracted from adipocytes. Two conditions were selected for comparison: total RNA extracted from adipocytes treated with DMSO (control) and or a SCD inhibitor.
2014-04-04 | E-GEOD-51905 | biostudies-arrayexpress
Project description:Adipose tissue in the mammary gland undergoes dramatic remodeling during reproduction. Adipocytes are replaced by mammary alveolar structures during pregnancy and lactation, then reappear upon weaning. Here, we reveal that adipocytes in the mammary gland de-differentiate into Pdgfrα+ preadipocyte- and fibroblast-like cells during pregnancy, and remain de-differentiated during lactation. Upon weaning, de-differentiated fibroblasts proliferate and re-differentiate into adipocytes. In order to determine the molecular signature of these de-differentiated adipocytes in the mammary gland, we compared these cells with classical adipocytes. Using the AdipoChaser-mT/mG system, we pre-labeled mature adipocytes with GFP expression to characterize the features of these de-differentiated adipocytes (Figure 4A), and then purified CD31-/CD45-/PDGFRα+/Tomato+ and CD31-/CD45-/PDGFRα+/GFP+ cells from the stromal vascular fraction (SVF) of lactating mammary gland at the peak of lactation through FACS. Gene expression analyses showed that the CD31-/CD45-/PDGFRα+/Tomato+ cells were indeed enriched with Tomato expression, while the CD31-/CD45-/PDGFRα+/GFP+ cells were enriched with GFP expression (Figure 4C). We then collected CD31-/CD45-/PDGFRα+/GFP+ cells as single cells for subsequent single cell RNA-sequencing analysis (Figure 4D-G, Supplemental. Figure S1A-G). After the flow sorting and single cell RNA amplification, 26 CD31-/CD45-/PDGFRα+/GFP+ cells passed the quality control, and these cells were used for single-cell RNA-sequencing analysis. Due to technical difficulties in sorting single mature white adipocyte through flow cytometry, adipocytes differentiated from the immortalized murine-derived brown pre-adipocyte cell line were used as mature adipocyte control (Pradhan et al., 2017). Additionally, we also included population RNA-seq experiments, i.e. three mature white adipocyte samples, two GFP+, and six GFP- ones.
2018-06-17 | E-MTAB-6818 | biostudies-arrayexpress
Project description:Objective : This work aimed at characterizing PPARα involvement in metabolism regulation and at comparing PPARα and PPARγ roles in human white adipocytes. Research Design and Methods : Profiling of gene expression alterations was assessed with microarrays and RT-qPCR. Primary cultures of human adipocytes were treated with PPARα agonist GW7647 or PPARγ agonist Rosiglitazone. Western blot were used to determine protein level modifications. Metabolic changes were evaluated with palmitate and glucose oxidation studies and with metabolite measurements. Results : GW7647 induces an upregulation of β-oxidation gene expression and increases palmitate oxidation. Unexpectedly glycolysis was strongly reduced at transcriptional and functional levels by GW7647 while the overall glucose oxidation remains unaltered, leading to a decrease in pyruvate and lactate production. Moreover lipogenesis was downregulated by GW7647 inhibiting triglyceride esterification and de novo lipogenesis. GW7647 induced alterations were abolished by a PPARα antagonist treatment and were clearly different from Rosiglitazone effects. Rosiglitazone had no major impact on glycolysis and β-oxidation but increased glucose incorporation into glycerol backbone of triglycerides. Conclusions : Altogether these results show that PPARα can upregulate β-oxidation in human white adipocytes. Its pharmacological activation may be used to oxidize fatty acids in situ when lipolysis is activated thus preventing their release into systemic circulation. We treated four adipocyte cultures, each one coming from different subjects, with GW7647, Rosiglitazone (ROSI) or DMSO. DMSO treated cells are control samples. Thus we have four paired sample groups for each treatment (GW7647 and ROSI).
2010-04-11 | E-GEOD-15862 | biostudies-arrayexpress
Project description:Objective : This work aimed at characterizing PPARα involvement in metabolism regulation and at comparing PPARα and PPARγ roles in human white adipocytes. Research Design and Methods : Profiling of gene expression alterations was assessed with microarrays and RT-qPCR. Primary cultures of human adipocytes were treated with PPARα agonist GW7647 or PPARγ agonist Rosiglitazone. Western blot were used to determine protein level modifications. Metabolic changes were evaluated with palmitate and glucose oxidation studies and with metabolite measurements. Results : GW7647 induces an upregulation of β-oxidation gene expression and increases palmitate oxidation. Unexpectedly glycolysis was strongly reduced at transcriptional and functional levels by GW7647 while the overall glucose oxidation remains unaltered, leading to a decrease in pyruvate and lactate production. Moreover lipogenesis was downregulated by GW7647 inhibiting triglyceride esterification and de novo lipogenesis. GW7647 induced alterations were abolished by a PPARα antagonist treatment and were clearly different from Rosiglitazone effects. Rosiglitazone had no major impact on glycolysis and β-oxidation but increased glucose incorporation into glycerol backbone of triglycerides. Conclusions : Altogether these results show that PPARα can upregulate β-oxidation in human white adipocytes. Its pharmacological activation may be used to oxidize fatty acids in situ when lipolysis is activated thus preventing their release into systemic circulation.
2010-04-11 | GSE15862 | GEO
Project description:Purpose: The goals of this study are to compare the de-differentiated dermal adipocytes with normal skin fibroblasts. Methods: Library prepared followed by 10X Genomics standard protocol. Transcriptome was generated by high throughput sequencing.
2019-09-16 | GSE129371 | GEO
Project description:Introduction: There is a clinical need for developing systemic transplantation protocols for use of human skeletal stem cells (also known bone marrow stromal stem cells) (hBMSC) in tissue regeneration. In systemic transplantation studies, only a limited number of hBMSC home to injured tissues suggesting that only a subpopulation of hBMSC possess âhomingâ capacity. Thus, we tested the hypothesis that a subpopulation of hBMSC defined by ability to form heterotopic bone in vivo, is capable of homing to injured bone. Methods: We tested ex vivo and in vivo homing capacity of a number of clonal cell populations derived from telomerized hBMSC (hBMSC-TERT) with variable ability to form heterotopic bone when implanted subcutaneously in immune deficient mice. In vitro transwell migration assay was used and in vivo homing ability to bone fractures in mice was visualized by bioluminescence imaging (BLI). In order to identify the molecular phenotype associated with enhanced migration, we carried out comparative DNA microarray analysis of gene expression of hBMSC-derived high bone forming (HBF) clones versus low bone forming (LBF) clones. Results: In this study, clonal cell populations forming in vivo bone were shown to exhibit higher ex vivo transwell migration and following intravenous infusion, enhanced in vivo homing ability to bone fractures. Comparative microarray analysis of LBF versus HBF clones identified a significant enrichment of gene categories of cell chemo-attraction, adhesion and migration. Among these genes, platelet-derived growth factor receptor (PDGF-R) α and β were highly expressed in HBF clones. Further studies showed that the chemoattractive effects of PDGF in vitro was more enhanced in HBF clones compared to LBF clones and this effect was abolished in presence of a PDGFR-β-specific inhibitor: SU-16f. Sorted PDGFR-β+ cells from LBF clones showed that the PDGFR-β+ enriched cell population exhibited strong chemoattractance towards PDGF. Conclusion: Our data demonstrate phenotypic and molecular association between in vivo bone formation and migratory capacity of hBMSC. PDGFR-β can be used as a potential marker for the prospective selection of hBMSC populations with high migration and bone formation capacities suitable for clinical trials for enhancing bone regeneration. Total RNA obtained from telomerized human bone marrow derived mesenchymal stromal cells (T4P38a) with high in vivo bone forming capacity and (T4P74a) with low bone forming capacity and three single cell clones with high bone forming capacities (DD8, AD10 and BB10) and three clones with low bone forming capacities (CF1, CB4 and CD4). All cells were cultured under standard conditions and RNAs were isolated at baseline with no induction. each sample was represented in doublicate as a and b.
2016-06-01 | E-GEOD-69358 | biostudies-arrayexpress