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Näf L, Miescher I, Pfuderer L, Schweizer TA, Brunner D, Dürig J, Gröninger O, Rieber J, Meier-Buergisser G, Spanaus K, Calcagni M, Bosshard PP, Achermann Y, Stark WJ, Buschmann J. Pro-angiogenic and antibacterial copper containing nanoparticles in PLGA/amorphous calcium phosphate bone nanocomposites. Heliyon 2024; 10:e27267. [PMID: 38486752 PMCID: PMC10937708 DOI: 10.1016/j.heliyon.2024.e27267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 02/27/2024] [Indexed: 03/17/2024] Open
Abstract
Large bone defects after trauma demand for adequate bone substitutes. Bone void fillers should be antibacterial and pro-angiogenic. One viable option is the use of composite materials like the combination of PLGA and amorphous calcium phosphate (aCaP). Copper stimulates angiogenesis and has antibacterial qualities. Either copper oxide (CuO) nanoparticles (NPs) were therefore added to PLGA/aCaP/CuO in different concentrations (1, 5 and 10 w/w %) or copper-doped tricalcium phosphate NPs (TCP with 2% of copper) were electrospun into PLGA/CuTCP nanocomposites. Bi-layered nanocomposites of PLGA/aCaP with different copper NPs (CuO or TCP) and a second layer of pristine PLGA were fabricated. Two clinical bacterial isolates (Staphylococcus aureus and Staphylococcus epidermidis) were used to assess antibacterial properties of the copper-containing materials. For angiogenesis, the chorioallantoic membrane (CAM) assay of the chicken embryo was performed. The higher the CuO content, the higher were the antibacterial properties, with 10 % CuO reducing bacterial adhesion most effectively. Vessel and cell densities were highest in the 5 % CuO containing scaffolds, while tissue integration was more pronounced at lower CuO content. The PLGA/aCaP/CuO (1 % CuO) behaved similar like PLGA/CuTCP in all angiogenic and antibacterial readouts, based on the same copper fraction. We conclude that CuO NPs or CuTCP NPs are useful components to increase angiogenic properties of nanocomposites and at the same time exhibiting antibacterial characteristics.
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Affiliation(s)
- Lukas Näf
- Department of Plastic Surgery and Hand Surgery, University Hospital of Zürich, Rämistrasse 100, 8091, Zürich, Switzerland
| | - Iris Miescher
- Department of Plastic Surgery and Hand Surgery, University Hospital of Zürich, Rämistrasse 100, 8091, Zürich, Switzerland
| | - Lara Pfuderer
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093, Zurich, Switzerland
| | - Tiziano A. Schweizer
- Department of Dermatology, University Hospital Zurich, University of Zurich, Rämistrasse 100, 8091, Zurich, Switzerland
| | - David Brunner
- Department of Plastic Surgery and Hand Surgery, University Hospital of Zürich, Rämistrasse 100, 8091, Zürich, Switzerland
| | - Johannes Dürig
- Department of Plastic Surgery and Hand Surgery, University Hospital of Zürich, Rämistrasse 100, 8091, Zürich, Switzerland
| | - Olivier Gröninger
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093, Zurich, Switzerland
| | - Julia Rieber
- Department of Plastic Surgery and Hand Surgery, University Hospital of Zürich, Rämistrasse 100, 8091, Zürich, Switzerland
| | - Gabriella Meier-Buergisser
- Department of Plastic Surgery and Hand Surgery, University Hospital of Zürich, Rämistrasse 100, 8091, Zürich, Switzerland
| | - Katharina Spanaus
- Clinical Chemistry, University Hospital Zurich, 8001, Zurich, Switzerland
| | - Maurizio Calcagni
- Department of Plastic Surgery and Hand Surgery, University Hospital of Zürich, Rämistrasse 100, 8091, Zürich, Switzerland
| | - Philipp P. Bosshard
- Department of Dermatology, University Hospital Zurich, University of Zurich, Rämistrasse 100, 8091, Zurich, Switzerland
| | - Yvonne Achermann
- Department of Dermatology, University Hospital Zurich, University of Zurich, Rämistrasse 100, 8091, Zurich, Switzerland
| | - Wendelin J. Stark
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093, Zurich, Switzerland
| | - Johanna Buschmann
- Department of Plastic Surgery and Hand Surgery, University Hospital of Zürich, Rämistrasse 100, 8091, Zürich, Switzerland
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Casanova EA, Rodriguez-Palomo A, Stähli L, Arnke K, Gröninger O, Generali M, Neldner Y, Tiziani S, Dominguez AP, Guizar-Sicairos M, Gao Z, Appel C, Nielsen LC, Georgiadis M, Weber FE, Stark W, Pape HC, Cinelli P, Liebi M. SAXS imaging reveals optimized osseointegration properties of bioengineered oriented 3D-PLGA/aCaP scaffolds in a critical size bone defect model. Biomaterials 2023; 294:121989. [PMID: 36628888 DOI: 10.1016/j.biomaterials.2022.121989] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 12/01/2022] [Accepted: 12/24/2022] [Indexed: 01/03/2023]
Abstract
Healing large bone defects remains challenging in orthopedic surgery and is often associated with poor outcomes and complications. A major issue with bioengineered constructs is achieving a continuous interface between host bone and graft to enhance biological processes and mechanical stability. In this study, we have developed a new bioengineering strategy to produce oriented biocompatible 3D PLGA/aCaP nanocomposites with enhanced osseointegration. Decellularized scaffolds -containing only extracellular matrix- or scaffolds seeded with adipose-derived mesenchymal stromal cells were tested in a mouse model for critical size bone defects. In parallel to micro-CT analysis, SAXS tensor tomography and 2D scanning SAXS were employed to determine the 3D arrangement and nanostructure within the critical-sized bone. Both newly developed scaffold types, seeded with cells or decellularized, showed high osseointegration, higher bone quality, increased alignment of collagen fibers and optimal alignment and size of hydroxyapatite minerals.
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Affiliation(s)
- Elisa A Casanova
- Department of Trauma Surgery, University of Zurich, University Hospital Zurich, Zurich, Switzerland
| | | | - Lisa Stähli
- Department of Trauma Surgery, University of Zurich, University Hospital Zurich, Zurich, Switzerland
| | - Kevin Arnke
- Department of Trauma Surgery, University of Zurich, University Hospital Zurich, Zurich, Switzerland
| | - Olivier Gröninger
- Institute for Chemical and Bioengineering, ETH Zurich, Zurich, Switzerland
| | - Melanie Generali
- Institute for Regenerative Medicine (IREM), Center for Therapy Development and Good Manufacturing Practice, University of Zurich, Zurich, Switzerland
| | - Yvonne Neldner
- Department of Trauma Surgery, University of Zurich, University Hospital Zurich, Zurich, Switzerland
| | - Simon Tiziani
- Department of Trauma Surgery, University of Zurich, University Hospital Zurich, Zurich, Switzerland
| | - Ana Perez Dominguez
- Oral Biotechnology and Bioengineering, Department of Cranio-Maxillofacial and Oral Surgery, Center for Dental Medicine, University of Zurich, Zurich, Switzerland
| | | | - Zirui Gao
- Swiss Light Source, Paul Scherrer Institute, Villigen, Switzerland
| | - Christian Appel
- Swiss Light Source, Paul Scherrer Institute, Villigen, Switzerland
| | - Leonard C Nielsen
- Department of Physics, Chalmers University of Technology, Gothenburg, Sweden
| | - Marios Georgiadis
- Department of Radiology, Stanford School of Medicine, Stanford, CA, USA
| | - Franz E Weber
- Oral Biotechnology and Bioengineering, Department of Cranio-Maxillofacial and Oral Surgery, Center for Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Wendelin Stark
- Institute for Chemical and Bioengineering, ETH Zurich, Zurich, Switzerland
| | - Hans-Christoph Pape
- Department of Trauma Surgery, University of Zurich, University Hospital Zurich, Zurich, Switzerland
| | - Paolo Cinelli
- Department of Trauma Surgery, University of Zurich, University Hospital Zurich, Zurich, Switzerland; Center for Applied Biotechnology and Molecular Medicine (CABMM), University of Zurich, Zurich, Switzerland.
| | - Marianne Liebi
- Department of Physics, Chalmers University of Technology, Gothenburg, Sweden; Centre for X-ray Analytics, Swiss Federal Laboratories for Materials Science and Technology (EMPA), St. Gallen, Switzerland
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Fracassi A, Cao J, Yoshizawa-Sugata N, Tóth É, Archer C, Gröninger O, Ricciotti E, Tang SY, Handschin S, Bourgeois JP, Ray A, Liosi K, Oriana S, Stark W, Masai H, Zhou R, Yamakoshi Y. LDL-mimetic lipid nanoparticles prepared by surface KAT ligation for in vivo MRI of atherosclerosis. Chem Sci 2020; 11:11998-12008. [PMID: 34094421 PMCID: PMC8162946 DOI: 10.1039/d0sc04106h] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Low-density lipoprotein (LDL)-mimetic lipid nanoparticles (LNPs), decorated with MRI contrast agents and fluorescent dyes, were prepared by the covalent attachment of apolipoprotein-mimetic peptide (P), Gd(iii)-chelate (Gd), and sulforhodamine B (R) moieties on the LNP surface. The functionalized LNPs were prepared using the amide-forming potassium acyltrifluoroborate (KAT) ligation reaction. The KAT groups on the surface of LNPs were allowed to react with the corresponding hydroxylamine (HA) derivatives of P and Gd to provide bi-functionalized LNPs (PGd-LNP). The reaction proceeded with excellent yields, as observed by ICP-MS (for B and Gd amounts) and MALDI-TOF-MS data, and did not alter the morphology of the LNPs (mean diameter: ca. 50 nm), as shown by DLS and cryoTEM analyses. With the help of the efficient KAT ligation, a high payload of Gd(iii)-chelate on the PGd-LNP surface (ca. 2800 Gd atoms per LNP) was successfully achieved and provided a high r1 relaxivity (r1 = 22.0 s−1 mM−1 at 1.4 T/60 MHz and 25 °C; r1 = 8.2 s−1 mM−1 at 9.4 T/400 MHz and 37 °C). This bi-functionalized PGd-LNP was administered to three atherosclerotic apoE−/− mice to reveal the clear enhancement of atherosclerotic plaques in the brachiocephalic artery (BA) by MRI, in good agreement with the high accumulation of Gd in the aortic arch as shown by ICP-MS. The parallel in vivo MRI and ex vivo studies of whole mouse cryo-imaging were performed using triply functionalized LNPs with P, Gd, and R (PGdR-LNP). The clear presence of atherosclerotic plaques in BA was observed by ex vivo bright field cryo-imaging, and they were also observed by high emission fluorescent imaging. These directly corresponded to the enhanced tissue in the in vivo MRI of the identical mouse. LDL-mimetic lipid nanoparticles, decorated with MRI contrast agents and fluorescent dyes, were prepared by the covalent attachments of an apoB100-mimetic peptide, Gd(iii)-chelate, and rhodamine to enhance atherosclerosis in the in vivo imaging.![]()
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Affiliation(s)
- Alessandro Fracassi
- Laboratorium für Organische Chemie, ETH Zürich Vladimir-Prelog-Weg 3 CH-8093 Zürich Switzerland
| | - Jianbo Cao
- Department of Radiology, Institute for Translational Medicine and Therapeutics, University of Pennsylvania John Morgan 198, 3620 Hamilton Walk Philadelphia PA19104 USA
| | - Naoko Yoshizawa-Sugata
- Department of Genome Medicine, Tokyo Metropolitan Institute of Medical Science 2-1-6 Kamikitazawa, Setagaya Tokyo 156-8506 Japan
| | - Éva Tóth
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Université dOrléans Rue Charles Sadron, 45071 Orléans Cedex 2 France
| | - Corey Archer
- Institut für Geochemie und Petrologie, ETH Zürich Clausiusstrasse 25 CH-8092 Zürich Switzerland
| | - Olivier Gröninger
- Institute for Chemical and Bioengineering, ETH Zurich Vladimir-Prelog-Weg 1 CH-8093 Zurich Switzerland
| | - Emanuela Ricciotti
- Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania 3400 Civic Center Boulevard Philadelphia PA19104 USA
| | - Soon Yew Tang
- Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania 3400 Civic Center Boulevard Philadelphia PA19104 USA
| | - Stephan Handschin
- Scientific Center for Optical and Electron Microscopy, ETH Zürich Auguste-Piccard-Hof 1 Zürich CH-8093 Switzerland
| | - Jean-Pascal Bourgeois
- University of Applied Science and Arts Western Switzerland Bd de Pérolles 80 CH-1700 Fribourg Switzerland
| | - Ankita Ray
- Laboratorium für Organische Chemie, ETH Zürich Vladimir-Prelog-Weg 3 CH-8093 Zürich Switzerland
| | - Korinne Liosi
- Laboratorium für Organische Chemie, ETH Zürich Vladimir-Prelog-Weg 3 CH-8093 Zürich Switzerland
| | - Sean Oriana
- Laboratorium für Organische Chemie, ETH Zürich Vladimir-Prelog-Weg 3 CH-8093 Zürich Switzerland
| | - Wendelin Stark
- Institute for Chemical and Bioengineering, ETH Zurich Vladimir-Prelog-Weg 1 CH-8093 Zurich Switzerland
| | - Hisao Masai
- Department of Genome Medicine, Tokyo Metropolitan Institute of Medical Science 2-1-6 Kamikitazawa, Setagaya Tokyo 156-8506 Japan
| | - Rong Zhou
- Department of Radiology, Institute for Translational Medicine and Therapeutics, University of Pennsylvania John Morgan 198, 3620 Hamilton Walk Philadelphia PA19104 USA
| | - Yoko Yamakoshi
- Laboratorium für Organische Chemie, ETH Zürich Vladimir-Prelog-Weg 3 CH-8093 Zürich Switzerland
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Schneider I, Baumgartner W, Gröninger O, Stark WJ, Märsmann S, Calcagni M, Cinelli P, Wolint P, Buschmann J. 3D microtissue-derived human stem cells seeded on electrospun nanocomposites under shear stress: Modulation of gene expression. J Mech Behav Biomed Mater 2019; 102:103481. [PMID: 31678737 DOI: 10.1016/j.jmbbm.2019.103481] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 09/17/2019] [Accepted: 10/08/2019] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Different microenvironments trigger distinct differentiation of stem cells. Even without chemical supplementation, mechanical stimulation by shear stress may help to induce the desired differentiation. The cell format, such as three-dimensional (3D) microtissues (MTs), MT-derived cells or single cells (SCs), may have a pivotal impact as well. Here, we studied modulation of gene expression in human adipose-derived stem cells (ASCs) exposed to shear stress and/or after MT formation. MATERIALS AND METHODS Electrospun meshes of poly-lactic-co-glycolic acid and amorphous calcium phosphate nanoparticles (PLGA/aCaP) at a weight ratio of 60:40 were seeded with human ASCs as MTs or as SCs and cultured in Dulbecco's modified Eagle's medium without chemical supplementation. After 2 weeks of static culture, the scaffolds were cultured statically for another 2 weeks or placed in a Bose® bioreactor with a flow rate per area of 0.16 mL cm-2 min-1. Stiffness of the scaffolds was assessed as a function of time. After 4 weeks, minimum stem cell criteria markers and selected markers of osteogenesis, endothelial cell differentiation, adipogenesis and chondrogenesis were analysed by quantitative real-time polymerase chain reaction. Additionally, cell distribution within the scaffolds and the allocation of the yes-associated protein (YAP) in the cells were assessed by immunohistochemistry. RESULTS MTs decayed completely within 2 weeks after seeding on PLGA/aCaP. The osteogenic marker gene alkaline phosphatase and the endothelial cell marker gene CD31 were upregulated in MT-derived ASCs compared with SCs. Shear stress realised by fluid flow perfusion upregulated peroxisome proliferator-activated receptor gamma 2 expression in MT-derived ASCs and in SCs. The nuclear-to-cytoplasmic ratio of YAP expression was doubled under perfusion compared with that under static culture for MT-derived ASCs and SCs. CONCLUSIONS Osteogenic and angiogenic commitments were more pronounced in MT-derived ASCs seeded on bone biomimetic electrospun nanocomposite PLGA/aCaP than in SCs seeded without induction medium. Furthermore, the static culture was superior to the perfusion regimen used here, as shear stress resulted in adipogenic commitment for MT-derived ASCs and SCs, although the YAP nuclear-to-cytoplasmic ratio indicated higher cell tensions under perfusion, usually associated with preferred osteogenic differentiation.
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Affiliation(s)
- Isabelle Schneider
- Division of Plastic and Hand Surgery, University Hospital Zurich, Rämistrasse 100, CH-8091, Zurich, Switzerland
| | - Walter Baumgartner
- Division of Plastic and Hand Surgery, University Hospital Zurich, Rämistrasse 100, CH-8091, Zurich, Switzerland
| | - Olivier Gröninger
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093, Zurich, Switzerland
| | - Wendelin J Stark
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093, Zurich, Switzerland
| | - Sonja Märsmann
- Division of Plastic and Hand Surgery, University Hospital Zurich, Rämistrasse 100, CH-8091, Zurich, Switzerland; Division of Trauma Surgery, University Hospital Zurich, Rämistrasse 100, CH-8091, Zurich, Switzerland
| | - Maurizio Calcagni
- Division of Plastic and Hand Surgery, University Hospital Zurich, Rämistrasse 100, CH-8091, Zurich, Switzerland
| | - Paolo Cinelli
- Division of Trauma Surgery, University Hospital Zurich, Rämistrasse 100, CH-8091, Zurich, Switzerland
| | - Petra Wolint
- Division of Plastic and Hand Surgery, University Hospital Zurich, Rämistrasse 100, CH-8091, Zurich, Switzerland
| | - Johanna Buschmann
- Division of Plastic and Hand Surgery, University Hospital Zurich, Rämistrasse 100, CH-8091, Zurich, Switzerland.
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