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Interacting adipose-derived stem cells and microvascular endothelial cells provide a beneficial milieu for soft tissue healing

Molecular Biology Reports volume 47, pages 111–122 (2020)Cite this article

Abstract

There is growing evidence suggesting that healing of chronic soft tissue wounds profits from the presence of adipose-derived stem cells (ADSC). Among the large spectrum of mechanisms by which ADSC might act, especially the interaction with the microvascular endothelial cell, a main player during angiogenesis, is of special interest. In the present 2D model on the basis of endothelial cell ADSC co-cultures, we focused on the identification of characteristics of both cell types in response to a typical condition in acute and chronic wounds: hypoxia. Parameters like proliferation capacity, migration, myofibroblastoid differentiation of ADSC and the quantification of important paracrine factors related to angiogenesis and inflammation were used to correlate our experimental model with the in vivo situation of soft tissue healing. ADSC were not negatively affected by hypoxia in terms of proliferation, referring to their excellent hypoxia tolerance. Myofibroblastoid differentiation among ADSC was enhanced by hypoxia in mono- but not in co-culture. Furthermore, co-cultures were able to migrate under hypoxia. These effects might be caused to some extent by the distinct milieu created by interacting ADSC and endothelial cells, which was characterized by modulated levels of interleukin-6, interleukin-8, monocyte chemoattractant protein-1 and vascular endothelial growth factor. The identification of these cell characteristics in the present 2D in vitro model provide new insights into the process of human soft tissue healing, and underpin a beneficial role of ADSC by regulating inflammation and angiogenesis.

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Funding

This study was supported by Saarland University.

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Affiliations

  1. Department of Trauma-, Hand- and Reconstructive Surgery, Saarland University, Kirrberger Straße, Bldng. 57, 66421, Homburg, Germany

    Sophie Bachmann, Martina Jennewein, Monika Bubel, Silke Guthörl, Tim Pohlemann & Martin Oberringer

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  1. Sophie Bachmann
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  2. Martina Jennewein
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  3. Monika Bubel
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  4. Silke Guthörl
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  5. Tim Pohlemann
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  6. Martin Oberringer
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Correspondence to Martin Oberringer.

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Bachmann, S., Jennewein, M., Bubel, M. et al. Interacting adipose-derived stem cells and microvascular endothelial cells provide a beneficial milieu for soft tissue healing. Mol Biol Rep 47, 111–122 (2020). https://doi.org/10.1007/s11033-019-05112-y

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  • DOI: https://doi.org/10.1007/s11033-019-05112-y

Keywords

  • Soft tissue healing
  • Adipose-derived stem cell
  • Microvascular endothelial cell
  • Hypoxia
  • Inflammation
  • Angiogenesis
  • Co-culture
  • Myofibroblastoid differentiation