Bioinspired calcium phosphate mineralization on net-shape-nonwoven chitosan scaffolds stimulates human bone marrow stromal cell differentiation
Publikation: Beitrag in Fachzeitschrift › Forschungsartikel › Beigetragen › Begutachtung
Beitragende
Abstract
Chitosan fibers were processed using the Net-Shape-Nonwoven (NSN) technique in order to create porous scaffolds which were functionalized in two bioinspired ways: collagen type I coating and unique mineralization with organically modified hydroxyapatite (ormoHAP). While collagen is common to enhance cell attachment on surfaces, the electric-field assisted migration and deposition of ormoHAP on the surface of the NSN-scaffolds is a novel technique which enables sub-micrometer sized mineralization while maintaining the original pore structure. Microscopy revealed fast attachment and morphological adaptation of the cells on both, the pure and the functionalized NSN-scaffolds. Remarkably, the cell number of osteogenically induced hBMSC on ormoHAP-modified NSN-scaffolds increased 3.5–5 fold compared to pure NSN-scaffolds. Osteogenic differentiation of hBMSC/osteoblasts was highest on collagen-functionalized NSN-scaffolds. RT-PCR studies revealed gene expression of ALP, BSP II, and osteocalcin to be high for all NSN-scaffolds. Overall, the NSN-scaffold functionalization with collagen and ormoHAP improved attachment, proliferation, and differentiation of hBMSC and therefore revealed the remarkable potential of their application for the tissue engineering of bone.
Details
Originalsprache | Englisch |
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Aufsatznummer | 045017 |
Fachzeitschrift | Biomedical Materials (Bristol) |
Jahrgang | 14 |
Ausgabenummer | 4 |
Publikationsstatus | Veröffentlicht - 2019 |
Peer-Review-Status | Ja |
Externe IDs
Scopus | 85068489456 |
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researchoutputwizard | legacy.publication#85207 |
ORCID | /0000-0002-7440-9277/work/142239078 |
Schlagworte
Schlagwörter
- net-shape-nonwoven chitosan scaffolds