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http://doi.org/10.25358/openscience-97
Autoren: | Ritz, Ulrike Gerke, Rebekka Götz, Hermann Stein, Stefan Rommens, Pol Maria |
Titel: | A new bone substitute developed from 3D-prints of polylactide (PLA) loaded with collagen I : an in vitro study |
Online-Publikationsdatum: | 27-Feb-2018 |
Erscheinungsdatum: | 2017 |
Sprache des Dokuments: | Englisch |
Zusammenfassung/Abstract: | Although a lot of research has been performed, large segmental bone defects caused by trauma, infection, bone tumors or revision surgeries still represent big challenges for trauma surgeons. New and innovative bone substitutes are needed. Three-dimensional (3D) printing is a novel procedure to create 3D porous scaffolds that can be used for bone tissue engineering. In the present study, solid discs as well as porous cage-like 3D prints made of polylactide (PLA) are coated or filled with collagen, respectively, and tested for biocompatibility and endotoxin contamination. Microscopic analyses as well as proliferation assays were performed using various cell types on PLA discs. Stromal-derived factor (SDF-1) release from cages filled with collagen was analyzed and the effect on endothelial cells tested. This study confirms the biocompatibility of PLA and demonstrates an endotoxin contamination clearly below the FDA (Food and Drug Administration) limit. Cells of various cell types (osteoblasts, osteoblast-like cells, fibroblasts and endothelial cells) grow, spread and proliferate on PLA-printed discs. PLA cages loaded with SDF-1 collagen display a steady SDF-1 release, support cell growth of endothelial cells and induce neo-vessel formation. These results demonstrate the potential for PLA scaffolds printed with an inexpensive desktop printer in medical applications, for example, in bone tissue engineering. |
DDC-Sachgruppe: | 610 Medizin 610 Medical sciences |
Veröffentlichende Institution: | Johannes Gutenberg-Universität |
Organisationseinheit: | FB 04 Medizin |
Veröffentlichungsort: | Mainz |
ROR: | https://ror.org/023b0x485 |
DOI: | http://doi.org/10.25358/openscience-97 |
URN: | urn:nbn:de:hebis:77-publ-578731 |
Version: | Published version |
Publikationstyp: | Zeitschriftenaufsatz |
Nutzungsrechte: | CC BY |
Informationen zu den Nutzungsrechten: | https://creativecommons.org/licenses/by/4.0/ |
Zeitschrift: | International journal of molecular sciences 18 12 |
Seitenzahl oder Artikelnummer: | Art. 2569 |
Verlag: | Molecular Diversity Preservation International |
Verlagsort: | Basel |
Erscheinungsdatum: | 2017 |
ISSN: | 1422-0067 1661-6596 |
URL der Originalveröffentlichung: | http://dx.doi.org/10.3390/ijms18122569 |
DOI der Originalveröffentlichung: | 10.3390/ijms18122569 |
Enthalten in den Sammlungen: | JGU-Publikationen |
Dateien zu dieser Ressource:
Datei | Beschreibung | Größe | Format | ||
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ritz_ulrike-a_new_bone_sub-20200928110132876.pdf | 10.73 MB | Adobe PDF | Öffnen/Anzeigen |