Characterization of human adult stem‐cell populations isolated from visceral and subcutaneous adipose tissue

Silvana Baglioni(University of Florence), Michela Francalanci(University of Florence), Roberta Squecco(University of Florence), Adriana Lombardi(University of Florence), Giulia Cantini(University of Florence), Roberta Angeli(University of Florence), Stefania Gelmini(University of Florence), Daniele Guasti(University of Florence), Susanna Benvenuti(University of Florence), Francesco Annunziato(University of Florence), Danièle Bani(University of Florence), Francesco Liotta(University of Florence), Fabio Francini(University of Florence), Giuliano Perigli(University of Florence), Mario Serio(University of Florence), Michaela Luconi(University of Florence)
The FASEB Journal
July 7, 2009
10.1096/fj.08-126946
Cited by 194Open Access
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Abstract

ABSTRACT Adipose tissue is a dynamic endocrine organ with a central role in metabolism regulation. Functional differences in adipose tissue seem associated with the regional distribution of fat depots, in particular in subcutaneous and visceral omental pads. Here, we report for the first time the isolation of human adipose‐derived adult stem cells from visceral omental and subcutaneous fat (V‐ASCs and S‐ASCs, respectively) from the same subject. Immunophenotyping shows that plastic culturing selects homogeneous cell populations of V‐ASCs and S‐ASCs from the corresponding stromal vascular fractions (SVFs), sharing typical markers of mesenchymal stem cells. Electron microscopy and electrophysiological and real‐time RT‐PCR analyses confirm the mesenchymal stem nature of both V‐ASCs and S‐ASCs, while no significant differences in a limited pattern of cytokine/chemokine expression can be detected. Similar to S‐ASCs, V‐ASCs can differentiate in vitro toward adipogenic, osteogenic, chondrogenic, muscular, and neuronal lineages, as demonstrated by histochemical, immunofluorescence, real‐time RT‐PCR, and electrophysiological analyses, suggesting the multipotency of such adult stem cells. Our data demonstrate that both visceral and subcutaneous adipose tissues are a source of pluripotent stem cells with multigermline potential. However, the visceral rather than the subcutaneous ASC could represent a more appropriate in vitro cell model for investigating the molecular mechanisms implicated in the pathophysiology of metabolic disorders such as obesity.—Baglioni, S., Francalanci, M., Squecco, R., Lombardi, A., Cantini, G., Angeli, R., Gelmini, S., Guasti, D., Benvenuti, S., Annunziato, F., Bani, D., Liotta, F., Francini, F., Perigli, G., Serio, M., Luconi, M. Characterization of human adult stem‐cell populations isolated from visceral and subcutaneous adipose tissue. FASEB J . 23, 3494–3505 (2009). www.fasebj.org

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