Articles producció científica> Medicina i Cirurgia

Glycogen accumulation in adipocyte precursors from elderly and obese subjects triggers inflammation via SIRT1/6 signaling

  • Identification data

    Identifier: imarina:9271511
    Authors:
    Terron-Puig, MargaridaHuber-Ruano, IsabelSabadell-Basallote, JoanEjarque, MiriamNunez-Roa, CatalinaMaymo-Masip, ElsaJorba, RosaSerena, CarolinaVendrell, JoanFernandez-Veledo, Sonia
    Abstract:
    Dysfunctional adipocyte precursors have emerged as key determinants for obesity- and aging-related inflammation, but the mechanistic basis remains poorly understood. Here, we explored the dysfunctional adipose tissue of elderly and obese individuals focusing on the metabolic and inflammatory state of human adipose-derived mesenchymal stromal cells (hASCs), and on sirtuins, which link metabolism and inflammation. Both obesity and aging impaired the differentiation potential of hASCs but had a different impact on their proliferative capacity. hASCs from elderly individuals (>= 65 years) showed an upregulation of glycolysis-related genes, which was accompanied by increased lactate secretion and glycogen storage, a phenotype that was exaggerated by obesity. Multiplex protein profiling revealed that the metabolic switch to glycogenesis was associated with a pro-inflammatory secretome concomitant with a decrease in the protein expression of SIRT1 and SIRT6. siRNA-mediated knockdown of SIRT1 and SIRT6 in hASCs from lean adults increased the expression of pro-inflammatory and glycolysis-related markers, and enforced glycogen deposition by overexpression of protein targeting to glycogen (PTG) led to a downregulation of SIRT1/6 protein levels, mimicking the inflammatory state of hASCs from elderly subjects. Overall, our data point to a glycogen-SIRT1/6 signaling axis as a driver of age-related inflammation in adipocyte precursors.
  • Others:

    Author, as appears in the article.: Terron-Puig, Margarida; Huber-Ruano, Isabel; Sabadell-Basallote, Joan; Ejarque, Miriam; Nunez-Roa, Catalina; Maymo-Masip, Elsa; Jorba, Rosa; Serena, Carolina; Vendrell, Joan; Fernandez-Veledo, Sonia;
    Department: Medicina i Cirurgia Ciències Mèdiques Bàsiques
    URV's Author/s: Fernandez Veledo, Sonia / Jorba Martin, Rosa Maria / Maymo Masip, Elsa / Serena Perelló, Carolina / Terrón Puig, Margarida Maria / Vendrell Ortega, Juan José
    Keywords: Targeting subunits Sirt6 Sirt1 Senescence Pathways Obesity Metabolism Mesenchymal stem-cells Insulin-resistance Inflammation Glycolysis Glycogen Expression Differentiation Aging Adipose-tissue Adipose-derived mesenchymal stromal cells
    Abstract: Dysfunctional adipocyte precursors have emerged as key determinants for obesity- and aging-related inflammation, but the mechanistic basis remains poorly understood. Here, we explored the dysfunctional adipose tissue of elderly and obese individuals focusing on the metabolic and inflammatory state of human adipose-derived mesenchymal stromal cells (hASCs), and on sirtuins, which link metabolism and inflammation. Both obesity and aging impaired the differentiation potential of hASCs but had a different impact on their proliferative capacity. hASCs from elderly individuals (>= 65 years) showed an upregulation of glycolysis-related genes, which was accompanied by increased lactate secretion and glycogen storage, a phenotype that was exaggerated by obesity. Multiplex protein profiling revealed that the metabolic switch to glycogenesis was associated with a pro-inflammatory secretome concomitant with a decrease in the protein expression of SIRT1 and SIRT6. siRNA-mediated knockdown of SIRT1 and SIRT6 in hASCs from lean adults increased the expression of pro-inflammatory and glycolysis-related markers, and enforced glycogen deposition by overexpression of protein targeting to glycogen (PTG) led to a downregulation of SIRT1/6 protein levels, mimicking the inflammatory state of hASCs from elderly subjects. Overall, our data point to a glycogen-SIRT1/6 signaling axis as a driver of age-related inflammation in adipocyte precursors.
    Thematic Areas: Medicina veterinaria Geriatrics & gerontology Ciências biológicas ii Ciências biológicas i Cell biology Biotecnología Aging
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    Author's mail: carolina.serena@urv.cat elsa.maymo@urv.cat margaridamaria.terron@estudiants.urv.cat sonia.fernandez@urv.cat juanjose.vendrell@urv.cat rosamaria.jorba@urv.cat
    Author identifier: 0000-0002-9133-3120 0000-0003-2906-3788 0000-0002-6994-6115 0000-0003-3307-4340
    Record's date: 2024-09-07
    Papper version: info:eu-repo/semantics/publishedVersion
    Link to the original source: https://onlinelibrary.wiley.com/doi/full/10.1111/acel.13667
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Aging Cell. 21 (8):
    APA: Terron-Puig, Margarida; Huber-Ruano, Isabel; Sabadell-Basallote, Joan; Ejarque, Miriam; Nunez-Roa, Catalina; Maymo-Masip, Elsa; Jorba, Rosa; Serena, C (2022). Glycogen accumulation in adipocyte precursors from elderly and obese subjects triggers inflammation via SIRT1/6 signaling. Aging Cell, 21(8), -. DOI: 10.1111/acel.13667
    Article's DOI: 10.1111/acel.13667
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2022
    Publication Type: Journal Publications
  • Keywords:

    Aging,Cell Biology,Geriatrics & Gerontology
    Targeting subunits
    Sirt6
    Sirt1
    Senescence
    Pathways
    Obesity
    Metabolism
    Mesenchymal stem-cells
    Insulin-resistance
    Inflammation
    Glycolysis
    Glycogen
    Expression
    Differentiation
    Aging
    Adipose-tissue
    Adipose-derived mesenchymal stromal cells
    Medicina veterinaria
    Geriatrics & gerontology
    Ciências biológicas ii
    Ciências biológicas i
    Cell biology
    Biotecnología
    Aging
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