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Influence of epidermal growth factor (EGF) and hydrocortisone on the co-culture of mature adipocytes and endothelial cells for vascularized adipose tissue engineering

  • The composition of vascularized adipose tissue is still an ongoing challenge as no culture medium is available to supply adipocytes and endothelial cells appropriately. Endothelial cell medium is typically supplemented with epidermal growth factor (EGF) as well as hydrocortisone (HC). The effect of EGF on adipocytes is discussed controversially. Some studies say it inhibits adipocyte differentiation while others reported of improved adipocyte lipogenesis. HC is known to have lipolytic activities, which might result in mature adipocyte dedifferentiation. In this study, we evaluated the influence of EGF and HC on the co-culture of endothelial cells and mature adipocytes regarding their cell morphology and functionality. We showed in mono-culture that high levels of HC promoted dedifferentiation and proliferation of mature adipocytes, whereas EGF seemed to have no negative influence. Endothelial cells kept their typical cobblestone morphology and showed a proliferation rate comparable to the control independent of EGF and HC concentration. In co-culture, HC promoted dedifferentiation of mature adipocytes, which was shown by a higher glycerol release. EGF had no negative impact on adipocyte morphology. No negative impact on endothelial cell morphology and functionality could be seen with reduced EGF and HC supplementation in co-culture with mature adipocytes. Taken together, our results demonstrate that reduced levels of HC are needed for co-culturing mature adipocytes and endothelial cells. In co-culture, EGF had no influence on mature adipocytes. Therefore, for the composition of vascularized adipose tissue constructs, the media with low levels of HC and high or low levels of EGF can be used.

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Metadaten
Author of HS ReutlingenKluger, Petra
DOI:https://doi.org/10.1002/cbin.10595
ISSN:1065-6995
eISSN:1095-8355
Erschienen in:Cell biology international
Publisher:Wiley-Blackwell
Place of publication:Hoboken, NJ
Document Type:Journal article
Language:English
Publication year:2016
Tag:EGF; dedifferentiation; endothelial cells; hydrocortisone; in vitro co-culture; mature adipocytes
Volume:40
Issue:5
Page Number:10
First Page:569
Last Page:578
DDC classes:570 Biowissenschaften, Biologie
Open access?:Nein
Licence (German):License Logo  In Copyright - Urheberrechtlich geschützt