Dissection of obesity-exercise axis in adipose-muscle tissues
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ABSTRACT:
PROVIDER: PRJNA759891 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR15697615.fastq.gz | Fastqsanger.gz | |||
| SRR15697616.fastq.gz | Fastqsanger.gz | |||
| SRR15697617.fastq.gz | Fastqsanger.gz | |||
| SRR15697618.fastq.gz | Fastqsanger.gz | |||
| SRR15697619.fastq.gz | Fastqsanger.gz |
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Project description:Tissue-level dissection of obesity-exercise axis in adipose-muscle tissues
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Project description:Single-cell dissection of obesity-exercise axis in adipose-muscle tissues
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Project description:We studied the opposing effects of exercise training and high-fat diet at single-cell resolution to reveal changes in cell type abundance, cell-type-specific gene expression/pathway/regulatory network changes, and changes in cell-cell communication both within and across tissues. We profiled scRNA-seq in 204,883 cells, grouped into 53 distinct cell sub-types/states across 22 major cell types, from subcutaneous white adipose tissue, visceral white adipose tissue, and skeletal muscle across 16 lean and 15 obese mice with both diet and exercise interventions. Changes in both cell proportion and transcriptional state were most strongly pronounced in adipose stem cells in fat, consistent with roles of adipogenesis in thermogenesis-vs-lipogenesis and hyperplasia-vs-hypertrophy in obesity. For immune cells, exercise training decreases obesity-associated inflammatory tissue-resident cell populations, including myeloid and regulatory T cells, and promotes beige-cell-inducing populations, including NKT cells. These changes clustered in common pathways across tissues for both exercise and obesity, including extracellular matrix remodelling and circadian rhythm in mesenchymal stem cells and cell activation/migration in immune cells.
2022-10-13 | GSE183288 | GEO
Project description:We studied the opposing effects of exercise training and high-fat diet at tissue-level resolution to reveal gene expression and pathway changes in subcutaneous white adipose tissue, visceral white adipose tissue, and skeletal muscle. We revealed gene modules consistently up-regulated by exercise training, which include fatty acid biosynthesis/beta-oxidation/metabolism, oxidative phosphorylation, TCA cycle, and ROS response. Modules down-regulated by exercise training in all three tissues are antigen presentation, neutrophil degranulation, immune cell migration, phagosome-related genes, ECM-related genes, proliferation, and ribonucleotide biosynthesis. Taken together, exercise training improves fatty acid metabolism and cellular respiration similarly across the three metabolic tissues, and represses immune, ECM, proliferation and tissue-specific pathways.
2022-10-13 | GSE183239 | GEO
Project description:This SuperSeries is composed of the SubSeries listed below.
2022-10-13 | GSE183290 | GEO
Project description:Exercise training is critical for the prevention and treatment of obesity, but its underlying mechanisms remain incompletely understood given the challenge of profiling heterogeneous effects across multiple tissues and cell types. Here, we address this challenge and opposing effects of exercise and high-fat diet (HFD)-induced obesity at single-cell resolution in subcutaneous and visceral white adipose tissue and skeletal muscle in mice with diet and exercise training interventions. We identify a prominent role of mesenchymal stem cells (MSCs) in obesity and exercise-induced tissue adaptation. Among the pathways regulated by exercise and HFD in MSCs across the three tissues, extracellular matrix remodeling and circadian rhythm are the most prominent. Inferred cell-cell interactions implicate within- and multi-tissue crosstalk centered around MSCs. Overall, our work reveals the intricacies and diversity of multi-tissue molecular responses to exercise and obesity and uncovers a previously underappreciated role of MSCs in tissue-specific and multi-tissue beneficial effects of exercise.
| S-EPMC9558082 | biostudies-literature
Project description:Exercise is recognized to be an effective way in the combat against obesity and related metabolic disorders, but the underlying mechanism is incompletely understood. Krüppel-like factor 10 (KLF10) is a transcription factor participating in diverse biological processes. KLF10 expression is abundant in adipose tissue, but its role in obesity is not well defined. Here, we show that exercise could facilitate adipocyte-derived KLF10 expression via the SIRT1/FOXO1 pathway. Adipocyte-specific knockout of KLF10 (KLF10AKO) blunts exercise-promoted white adipose browning, energy expenditure, fat loss, and glucose tolerance in diet-induced obese (DIO) mice. On the contrary, adipocyte-specific transgenic expression of KLF10 in mice (KLF10ATG) enhanced the abovementioned metabolic benefits induced by exercise. Mechanistically, KLF10 interacts with FOXO1 and facilitates the recruitment of KDM4A to form a ternary complex on the promoter regions of the Pnpla2 and Lipe genes to promote the expression of these key lipolytic genes, therefore facilitating lipolysis to defend against DIO in mice. As a newfound downstream effector responding to exercise, adipose KLF10 could act as a potential target in the fight against obesity
2024-08-25 | GSE269020 | GEO
Project description:Inflammasome activation in adipose tissue has been implicated in obesity-associated insulin resistance and type 2 diabetes. However, when and how inflammasome is activated in adipose tissue remains speculative. Here we test the hypothesis that extracellular ATP, a potent stimulus of inflammasome in macrophages via purinergic receptor P2X, ligand-gated ion channel, 7 (P2X7), may play a role in inflammasome activation in adipose tissue in obesity. Our data show that inflammasome is activated in adipose tissue upon 8-week feeding of 60% HFD, coinciding with the onset of hyperglycemia and hyperinsulinemia as well as the induction of P2X7 in adipose tissue. Unexpectedly, P2X7-deficient animals on HFD exhibit no changes in metabolic phenotypes, nor in inflammatory responses or inflammasome activation when compared to the wildtype controls. Similar observations have been obtained in hematopoietic cell-specific P2X7-deficient animals generated by bone marrow transplantation. Thus, we conclude that inflammasome activation in adipose tissue in obesity coincides with the onset of hyperglycemia and hyperinsulinemia, but unexpectedly, is not mediated by the ATP-P2X7 signaling axis. The nature of the inflammasome-activating danger signal(s) in adipose tissue in obesity remains to be characterized. Wild type and P2X7 knockout mice were fed a low fat diet (chow) or high fat diet for 12 weeks. After the diet intervention period, the animals were killed and epididymal white adipose tissue was removed. Total RNA was isolated and subjected to gene expression profiling.
2012-02-24 | E-GEOD-36033 | biostudies-arrayexpress
Project description:Background: The current knowledge about the molecular mechanisms underlying the health benefits of exercise is still limited, especially in the pediatric population. We set out to investigate the effect of a 20-week exercise intervention on whole blood transcriptome profile (RNA-seq) in children with overweight/obesity. Methods: Twenty-four pre-pubertal children (10.21 ± 1.33 years, 46% girls) with overweight/obesity, were randomized to either a 20-week exercise program (intervention group; n=10), or to a non-exercise control group (usual lifestyle, n=14). Whole blood transcriptome profile was analysed using RNA-seq STRT2 technique. Gene expression analysis was carried out with the Limma R/Bioconductor software package, and the gene ontology (GO) and pathway enrichment analyses were performed using R. Ingenuity Pathway Analysis (IPA) was performed for gene network detection. The transcriptome data were in silico validated using PHENOPEDIA and meta-analysis database extrameta.org. Results: 161 genes were differentially expressed between the exercise and the control groups among boys, and 121 genes among girls (p-value < 0.05), while after multiple correction, no significant difference between groups persisted in gene expression profiles (FDR > 0.05). Based on non-corrected analyses, the enriched GO processes and molecular pathways highlighted the effect of exercise on different immune response related pathways in boys (antigen processing and presentation, infections, and T cell receptor complex) and girls (Fc epsilon RI signaling pathway) (FDR < 0.05). In silico data mining and validation analyses (using PHENOPEDIA and meta-analysis database extrameta.org) highlight top genes regulated by exercise such as CD6, HLA-C, TNFRSF1A, MYD88, and NFKBIA genes in boys and RAC1, ANXA6, FYN, INPP5D, PIK3CD and SPARC genes in girls. Conclusion: These results suggest that 20-week exercise program influences different immune processes in children with overweight/obesity. The transcriptome differences between boys and girls could partly be explained, in addition to the gender differences, by the distinct intensity in the exercise intervention as boys had stronger exercise stimulus in training. Our findings should be considered exploratory and preliminary given the relatively small sample size. Larger and more powered randomized controlled trials should confirm or contrast our findings.
2023-09-19 | GSE193771 | GEO
Project description:Physiological and molecular dissection of daily variance in exercise capacity
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