Regulation of Adipose Progenitor Cell Expansion in a Novel Micro-Physiological Model of Human Adipose Tissue Mimicking Fibrotic and Pro-Inflammatory Microenvironments - Archive ouverte HAL
Article Dans Une Revue (Article De Synthèse) Cells Année : 2022

Regulation of Adipose Progenitor Cell Expansion in a Novel Micro-Physiological Model of Human Adipose Tissue Mimicking Fibrotic and Pro-Inflammatory Microenvironments

Vincent Dani
Solène Bruni-Favier
  • Fonction : Auteur
Bérengère Chignon-Sicard
  • Fonction : Auteur
Agnès Loubat
  • Fonction : Auteur
Alain Doglio
  • Fonction : Auteur
Christian Dani
  • Fonction : Auteur correspondant
  • PersonId : 1109790

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Résumé

The expansion of adipose progenitor cells (APCs) plays an important role in the regeneration of the adipose tissue in physiological and pathological situations. The major role of CD26expressing APCs in the generation of adipocytes has recently been highlighted, revealing that the CD26 APC subtype displays features of multipotent stem cells, giving rise to CD54-and CD142expressing preadipocytes. However, a relevant human in vitro model to explore the regulation of the APC subpopulation expansion in lean and obese adipose tissue microenvironments is still lacking. In this work, we describe a novel adipose tissue model, named ExAdEx, that can be obtained from cosmetic surgery wastes. ExAdEx products are adipose tissue units maintaining the characteristics and organization of adipose tissue as it presents in vivo. The model was viable and metabolically active for up to two months and could adopt a pathological-like phenotype. The results revealed that inflammatory and fibrotic microenvironments differentially regulated the expansion of the CD26 APC subpopulation and its CD54 and CD142 APC progenies. The approach used significantly improves the method of generating adipose tissue models, and ExAdEx constitutes a relevant model that could be used to identify pathways promoting the expansion of APCs in physiological and pathological microenvironments.
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hal-03948487 , version 1 (20-01-2023)

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Vincent Dani, Solène Bruni-Favier, Bérengère Chignon-Sicard, Agnès Loubat, Alain Doglio, et al.. Regulation of Adipose Progenitor Cell Expansion in a Novel Micro-Physiological Model of Human Adipose Tissue Mimicking Fibrotic and Pro-Inflammatory Microenvironments. Cells, 2022, 11, ⟨10.3390/cells11182798⟩. ⟨hal-03948487⟩

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