Synergistic interactions of blood-borne immune cells, fibroblasts and extracellular matrix drive repair in an in vitro peri-implant wound healing model
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Autor:innen
Burkhardt, Melanie
Waser, Jasmin
Milleret, Vincent
Gerber, Isabel
Emmert, Maximilian
Foolen, Jasper
Hoerstrup, Simon
Vogel, Viola
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Publikationsdatum
17.02.2016
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01A - Beitrag in wissenschaftlicher Zeitschrift
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Übergeordnetes Werk
Scientific Reports
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Zusammenfassung
Low correlations of cell culture data with clinical outcomes pose major medical challenges with costly consequences. While the majority of biomaterials are tested using in vitro cell monocultures, the importance of synergistic interactions between different cell types on paracrine signalling has recently been highlighted. In this proof-of-concept study, we asked whether the first contact of surfaces with whole human blood could steer the tissue healing response. This hypothesis was tested using alkali-treatment of rough titanium (Ti) surfaces since they have clinically been shown to improve early implant integration and stability, yet blood-free in vitro cell cultures poorly correlated with in vivo tissue healing. We show that alkali-treatment, compared to native Ti surfaces, increased blood clot thickness, including platelet adhesion. Strikingly, blood clots with entrapped blood cells in synergistic interactions with fibroblasts, but not fibroblasts alone, upregulated the secretion of major factors associated with fast healing. This includes matrix metalloproteinases (MMPs) to break down extracellular matrix and the growth factor VEGF, known for its angiogenic potential. Consequently, in vitro test platforms, which consider whole blood-implant interactions, might be superior in predicting wound healing in response to biomaterial properties.
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2045-2322
Sprache
Englisch
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Ja
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Veröffentlicht
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Zitation
BURKHARDT, Melanie, Jasmin WASER, Vincent MILLERET, Isabel GERBER, Maximilian EMMERT, Jasper FOOLEN, Simon HOERSTRUP, Falko SCHLOTTIG und Viola VOGEL, 2016. Synergistic interactions of blood-borne immune cells, fibroblasts and extracellular matrix drive repair in an in vitro peri-implant wound healing model. Scientific Reports. 17 Februar 2016. DOI 10.1038/srep21071. Verfügbar unter: http://hdl.handle.net/11654/17634