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Cited by 262

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Native human adipose stromal cells: localization, morphology and phenotype

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Maumus, M, Peyrafitte, J-A, D'Angelo, R, Fournier-Wirth, C, Bouloumié, A, Casteilla, L, Sengenès, C, Bourin, P·2011·International Journal of Obesity

Abstract

OBJECTIVES: Beside having roles in energy homeostasis and endocrine modulation, adipose tissue (AT) is now considered a promising source of mesenchymal stromal cells (adipose-derived stromal cells or ASCs) for regenerative medicine. Despite numerous studies on cultured ASCs, native human ASCs are rarely investigated. Indeed, the phenotype of ASCs in their native state, their localization within AT and comparison with bone marrow-derived mesenchymal stromal cells (BM-MSCs) has been poorly investigated. DESIGN: To address these issues, the stroma vascular fraction (SVF) of human AT was extracted and native cell subtypes were isolated by immunoselection to study their clonogenic potential in culture. Immunohistology on samples of human AT in combination with reconstruction of confocal sections were performed in order to localize ASCs. RESULTS: Compared with BM-MNCs, all native ASCs were found in the CD34(+) cell fraction of the AT-SVF. Native ASCs expressed classical mesenchymal markers described for BM-MSCs. Interestingly, CD34 expression decreased during ASC cell culture and was negatively correlated with cell proliferation rate. Immunohistological analysis revealed that native ASCs exhibited specific morphological features with protrusions. They were found scattered in AT stroma and did not express in vivo pericytic markers such as NG2, CD140b or alpha-smooth muscle actin, which appeared during the culture process. Finally, ASCs spontaneous commitment to adipocytic lineage was enhanced in AT from obese humans. CONCLUSIONS: The use of complementary methodological approaches to study native human ASCs revealed their immunophenotype, their specific morphology, their location within AT and their stemness. Furthermore, our data strongly suggest that human ASCs participate in adipogenesis during AT development.

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Metadata

Authors
Maumus, M., Peyrafitte, J.-A., D'Angelo, R., Fournier-Wirth, C., Bouloumié, A., Casteilla, L., Sengenès, C., & Bourin, P.
Venue
International Journal of Obesity
Published
2011-01-25
Volume
35
Issue
9
Pages
1141-1153
ISSN
  • 0307-0565 (ISSN-L)
  • 1476-5497
OpenAlex
W1971881510
Cited by
262
References
12
FWCI
12.42
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Native human adipose stromal cells: localization, morphology and phenotype. https://app.cochat.ai/papers/10.1038/ijo.2010.269
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Maumus, M., Peyrafitte, J.-A., D'Angelo, R., Fournier-Wirth, C., Bouloumié, A., Casteilla, L., Sengenès, C., & Bourin, P. (2011). Native human adipose stromal cells: localization, morphology and phenotype. International Journal of Obesity. https://doi.org/10.1038/ijo.2010.269

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