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Friedrich RP, Cicha I, Alexiou C. Iron Oxide Nanoparticles in Regenerative Medicine and Tissue Engineering. NANOMATERIALS 2021; 11:nano11092337. [PMID: 34578651 PMCID: PMC8466586 DOI: 10.3390/nano11092337] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/03/2021] [Accepted: 09/06/2021] [Indexed: 12/13/2022]
Abstract
In recent years, many promising nanotechnological approaches to biomedical research have been developed in order to increase implementation of regenerative medicine and tissue engineering in clinical practice. In the meantime, the use of nanomaterials for the regeneration of diseased or injured tissues is considered advantageous in most areas of medicine. In particular, for the treatment of cardiovascular, osteochondral and neurological defects, but also for the recovery of functions of other organs such as kidney, liver, pancreas, bladder, urethra and for wound healing, nanomaterials are increasingly being developed that serve as scaffolds, mimic the extracellular matrix and promote adhesion or differentiation of cells. This review focuses on the latest developments in regenerative medicine, in which iron oxide nanoparticles (IONPs) play a crucial role for tissue engineering and cell therapy. IONPs are not only enabling the use of non-invasive observation methods to monitor the therapy, but can also accelerate and enhance regeneration, either thanks to their inherent magnetic properties or by functionalization with bioactive or therapeutic compounds, such as drugs, enzymes and growth factors. In addition, the presence of magnetic fields can direct IONP-labeled cells specifically to the site of action or induce cell differentiation into a specific cell type through mechanotransduction.
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Singh R, Eitler D, Morelle R, Friedrich RP, Dietel B, Alexiou C, Boccaccini AR, Liverani L, Cicha I. Optimization of cell seeding on electrospun PCL-silk fibroin scaffolds. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109838] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Angelopoulos I, Allenby MC, Lim M, Zamorano M. Engineering inkjet bioprinting processes toward translational therapies. Biotechnol Bioeng 2019; 117:272-284. [DOI: 10.1002/bit.27176] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 09/12/2019] [Accepted: 09/16/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Ioannis Angelopoulos
- Department of Biomedical ResearchFoundation of Research and Technology‐Hellas, Institute of Molecular Biology and Biotechnology Ioannina Greece
| | - Mark C. Allenby
- Instiute of Health and Biomedical InnovationQueensland University of Technology Brisbane Australia
| | | | - Mauricio Zamorano
- Chemical Engineering DepartmentUniversidad de La Frontera Temuco Chile
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Shen WB, Anastasiadis P, Nguyen B, Yarnell D, Yarowsky PJ, Frenkel V, Fishman PS. Magnetic Enhancement of Stem Cell-Targeted Delivery into the Brain Following MR-Guided Focused Ultrasound for Opening the Blood-Brain Barrier. Cell Transplant 2018; 26:1235-1246. [PMID: 28933214 PMCID: PMC5657739 DOI: 10.1177/0963689717715824] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Focused ultrasound (FUS)-mediated blood–brain barrier disruption (BBBD) can enable even large therapeutics such as stem cells to enter the brain from the bloodstream. However, the efficiency is relatively low. Our previous study showed that human neural progenitor cells (hNPCs) loaded with superparamagnetic iron oxide nanoparticles (SPIONs) in culture were attracted by an external magnetic field. In vivo, enhanced brain retention was observed near a magnet mounted on the skull in a rat model of traumatic brain injury, where BBBD also occurs. The goal of the current study was to determine whether magnetic attraction of SPION-loaded hNPCs would also enhance their retention in the brain after FUS-mediated BBBD. A small animal magnetic resonance imaging (MRI)-guided FUS system operating at 1.5 MHz was used to treat rats (∼120 g) without tissue damage or hemorrhage. Evidence of successful BBBD was validated with both radiologic enhancement of gadolinium on postsonication TI MRI and whole brain section visualization of Evans blue dye. The procedure was then combined with the application of a powerful magnet to the head directly after intravenous injection of the hNPCs. Validation of cells within the brain was performed by staining with Perls’ Prussian blue for iron and by immunohistochemistry with a human-specific antigen. By injecting equal numbers of iron oxide (SPIONs) and noniron oxide nanoparticles–loaded hNPCs, each labeled with a different fluorophore, we found significantly greater numbers of SPIONs-loaded cells retained in the brain at the site of BBBD as compared to noniron loaded cells. This result was most pronounced in regions of the brain closest to the skull (dorsal cortex) in proximity to the magnet surface. A more powerful magnet and a Halbach magnetic array resulted in more effective retention of SPION-labeled cells in even deeper brain regions such as the striatum and ventral cortex. There, up to 90% of hNPCs observed contained SPIONs compared to 60% to 70% with the less powerful magnet. Fewer cells were observed at 24 h posttreatment compared to 2 h (primarily in the dorsal cortex). These results demonstrate that magnetic attraction can substantially enhance the retention of stem cells after FUS-mediated BBBD. This procedure could provide a safer and less invasive approach for delivering stem cells to the brain, compared to direct intracranial injections, substantially reducing the risk of bleeding and infection.
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Affiliation(s)
- Wei-Bin Shen
- 1 Department of Pharmacology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Pavlos Anastasiadis
- 2 Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Ben Nguyen
- 2 Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Deborah Yarnell
- 3 Neurology Service, VA Maryland Healthcare System, Baltimore, MD, USA
| | - Paul J Yarowsky
- 1 Department of Pharmacology, University of Maryland School of Medicine, Baltimore, MD, USA.,4 Research Service, VA Maryland Healthcare System, Baltimore, MD, USA
| | - Victor Frenkel
- 2 Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, MD, USA.,5 Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Paul S Fishman
- 3 Neurology Service, VA Maryland Healthcare System, Baltimore, MD, USA.,6 Department of Neurology, University of Maryland School of Medicine, Baltimore, MD, USA
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Singh R, Wieser A, Reakasame S, Detsch R, Dietel B, Alexiou C, Boccaccini AR, Cicha I. Cell specificity of magnetic cell seeding approach to hydrogel colonization. J Biomed Mater Res A 2017. [PMID: 28639348 DOI: 10.1002/jbm.a.36147] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Tissue-engineered scaffolds require an effective colonization with cells. Superparamagnetic iron oxide nanoparticles (SPIONs) can enhance cell adhesion to matrices by magnetic cell seeding. We investigated the possibility of improving cell attachment and growth on different alginate-based hydrogels using fibroblasts and endothelial cells (ECs) loaded with SPIONs. Hydrogels containing pure alginate (Alg), alginate dialdehyde crosslinked with gelatin (ADA-G) and Alg blended with G or silk fibroin (SF) were prepared. Endothelial cells and fibroblasts loaded with SPIONs were seeded and grown on hydrogels for up to 7 days, in the presence of magnetic field during the first 24 h. Cell morphology (fluorescent staining) and metabolic activity (WST-8 assay) of magnetically-seeded versus conventionally seeded cells were compared. Magnetic seeding of ECs improved their initial attachment and further growth on Alg/G hydrogel surfaces. However, we did not achieve an efficient and stable colonization of ADA-G films with ECs even with magnetic cell seeding. Fibroblast showed good initial colonization and growth on ADA-G and on Alg/SF. This effect was further significantly enhanced by magnetic cell seeding. On pure Alg, initial attachment and spreading of magnetically-seeded cells was dramatically improved compared to conventionally-seeded cells, but the effect was transient and diminished gradually with the cessation of magnetic force. Our results demonstrate that magnetic seeding improves the strength and uniformity of initial cell attachment to hydrogel surface in cell-specific manner, which may play a decisive role for the outcome in tissue engineering applications. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 2948-2956, 2017.
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Affiliation(s)
- Raminder Singh
- Section of Experimental Oncology and Nanomedicine (SEON), Else Kröner-Fresenius-Stiftung-endowed Professorship for Nanomedicine, ENT Department, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Department of Cardiology and Angiology, University Hospital Erlangen, Erlangen, Germany
| | - Anna Wieser
- Section of Experimental Oncology and Nanomedicine (SEON), Else Kröner-Fresenius-Stiftung-endowed Professorship for Nanomedicine, ENT Department, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Supachai Reakasame
- Institute of Biomaterials, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Rainer Detsch
- Institute of Biomaterials, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Barbara Dietel
- Department of Cardiology and Angiology, University Hospital Erlangen, Erlangen, Germany
| | - Christoph Alexiou
- Section of Experimental Oncology and Nanomedicine (SEON), Else Kröner-Fresenius-Stiftung-endowed Professorship for Nanomedicine, ENT Department, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Aldo R Boccaccini
- Institute of Biomaterials, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Iwona Cicha
- Section of Experimental Oncology and Nanomedicine (SEON), Else Kröner-Fresenius-Stiftung-endowed Professorship for Nanomedicine, ENT Department, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
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Angelopoulos I, Southern P, Pankhurst QA, Day RM. Superparamagnetic iron oxide nanoparticles regulate smooth muscle cell phenotype. J Biomed Mater Res A 2016; 104:2412-9. [PMID: 27176658 PMCID: PMC5006844 DOI: 10.1002/jbm.a.35780] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 03/21/2016] [Accepted: 05/11/2016] [Indexed: 01/12/2023]
Abstract
Superparamagnetic iron oxide nanoparticles (SPION) are used for an increasing range of biomedical applications, from imaging to mechanical actuation of cells and tissue. The aim of this study was to investigate the loading of smooth muscle cells (SMC) with SPION and to explore what effect this has on the phenotype of the cells. Adherent human SMC were loaded with ∼17 pg of unconjugated, negatively charged, 50 nm SPION. Clusters of the internalized SPION particles were held in discrete cytoplasmic vesicles. Internalized SPION did not cause any change in cell morphology, proliferation, metabolic activity, or staining pattern of actin and calponin, two of the muscle contractile proteins involved in force generation. However, internalized SPION inhibited the increased gene expression of actin and calponin normally observed when cells are incubated under differentiation conditions. The observed change in the control of gene expression of muscle contractile apparatus by SPION has not previously been described. This finding could offer novel approaches for regulating the phenotype of SMC and warrants further investigation. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 104A: 2412–2419, 2016.
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Affiliation(s)
- Ioannis Angelopoulos
- Applied Biomedical Engineering Group, Division of Medicine, University College London, WC1E 6DD, UK
| | - Paul Southern
- UCL Institute of Biomedical Engineering, University College London, London, WC1E 6BT, UK
| | - Quentin A Pankhurst
- UCL Institute of Biomedical Engineering, University College London, London, WC1E 6BT, UK
| | - Richard M Day
- Applied Biomedical Engineering Group, Division of Medicine, University College London, WC1E 6DD, UK
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Hendow EK, Guhmann P, Wright B, Sofokleous P, Parmar N, Day RM. Biomaterials for hollow organ tissue engineering. FIBROGENESIS & TISSUE REPAIR 2016; 9:3. [PMID: 27014369 PMCID: PMC4806416 DOI: 10.1186/s13069-016-0040-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 03/15/2016] [Indexed: 12/14/2022]
Abstract
Tissue engineering is a rapidly advancing field that is likely to transform how medicine is practised in the near future. For hollow organs such as those found in the cardiovascular and respiratory systems or gastrointestinal tract, tissue engineering can provide replacement of the entire organ or provide restoration of function to specific regions. Larger tissue-engineered constructs often require biomaterial-based scaffold structures to provide support and structure for new tissue growth. Consideration must be given to the choice of material and manufacturing process to ensure the de novo tissue closely matches the mechanical and physiological properties of the native tissue. This review will discuss some of the approaches taken to date for fabricating hollow organ scaffolds and the selection of appropriate biomaterials.
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Affiliation(s)
- Eseelle K. Hendow
- Applied Biomedical Engineering Group, Division of Medicine, University College London, 21 University Street, London, UK
| | - Pauline Guhmann
- Applied Biomedical Engineering Group, Division of Medicine, University College London, 21 University Street, London, UK
| | - Bernice Wright
- Applied Biomedical Engineering Group, Division of Medicine, University College London, 21 University Street, London, UK
| | - Panagiotis Sofokleous
- Applied Biomedical Engineering Group, Division of Medicine, University College London, 21 University Street, London, UK
| | - Nina Parmar
- Applied Biomedical Engineering Group, Division of Medicine, University College London, 21 University Street, London, UK
| | - Richard M. Day
- Applied Biomedical Engineering Group, Division of Medicine, University College London, 21 University Street, London, UK
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Connell JJ, Patrick PS, Yu Y, Lythgoe MF, Kalber TL. Advanced cell therapies: targeting, tracking and actuation of cells with magnetic particles. Regen Med 2015; 10:757-72. [PMID: 26390317 DOI: 10.2217/rme.15.36] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Regenerative medicine would greatly benefit from a new platform technology that enabled measurable, controllable and targeting of stem cells to a site of disease or injury in the body. Superparamagnetic iron-oxide nanoparticles offer attractive possibilities in biomedicine and can be incorporated into cells, affording a safe and reliable means of tagging. This review describes three current and emerging methods to enhance regenerative medicine using magnetic particles to guide therapeutic cells to a target organ; track the cells using MRI and assess their spatial localization with high precision and influence the behavior of the cell using magnetic actuation. This approach is complementary to the systemic injection of cell therapies, thus expanding the horizon of stem cell therapeutics.
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Affiliation(s)
- John J Connell
- UCL Centre of Advanced Biomedical Imaging, Division of Medicine, University College London, Paul O'Gorman Building, 72 Huntley Street, London, WC1E 6DD, UK
| | - P Stephen Patrick
- UCL Centre of Advanced Biomedical Imaging, Division of Medicine, University College London, Paul O'Gorman Building, 72 Huntley Street, London, WC1E 6DD, UK
| | - Yichao Yu
- UCL Centre of Advanced Biomedical Imaging, Division of Medicine, University College London, Paul O'Gorman Building, 72 Huntley Street, London, WC1E 6DD, UK
| | - Mark F Lythgoe
- UCL Centre of Advanced Biomedical Imaging, Division of Medicine, University College London, Paul O'Gorman Building, 72 Huntley Street, London, WC1E 6DD, UK
| | - Tammy L Kalber
- UCL Centre of Advanced Biomedical Imaging, Division of Medicine, University College London, Paul O'Gorman Building, 72 Huntley Street, London, WC1E 6DD, UK
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Abstract
Airway diseases including COPD (chronic obstructive pulmonary disease), cystic fibrosis and lung cancer are leading causes of worldwide morbidity and mortality, with annual healthcare costs of billions of pounds. True regeneration of damaged airways offers the possibility of restoring lung function and protecting against airway transformation. Recently, advances in tissue engineering have allowed the development of cadaveric and biosynthetic airway grafts. Although these have produced encouraging results, the ability to achieve long-term functional airway regeneration remains a major challenge. To promote regeneration, exogenously delivered stem and progenitor cells are being trialled as cellular therapies. Unfortunately, current evidence suggests that only small numbers of exogenously delivered stem cells engraft within lungs, thereby limiting their utility for airway repair. In other organ systems, magnetic targeting has shown promise for improving long-term robust cell engraftment. This technique involves in vitro cell expansion, magnetic actuation and magnetically guided cell engraftment to sites of tissue damage. In the present paper, we discuss the utility of coupling stem cell-mediated cellular therapy with magnetic targeting for improving airway regeneration.
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Cicha I, Garlichs CD, Alexiou C. Cardiovascular therapy through nanotechnology – how far are we still from bedside? EUROPEAN JOURNAL OF NANOMEDICINE 2014. [DOI: 10.1515/ejnm-2014-0001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractRecent years brought about a widespread interest in the potential applications of nanotechnology for the diagnostics and the therapy of human diseases. With its promise of disease-targeted, patient-tailored treatment and reduced side effects, nanomedicine brings hope for millions of patients suffering of non-communicable diseases such as cancer or cardiovascular disorders. However, the emergence of the complex, multicomponent products based on new technologies poses multiple challenges to successful approval in clinical practice. Regulatory and development considerations, including properties of the components, reproducible manufacturing and appropriate characterization methods, as well as nanodrugs’ safety and efficacy are critical for rapid marketing of the new products. This review discusses the recent advances in cardiovascular applications of nanotechnologies and highlights the challenges that must be overcome in order to fill the gap existing between the promising bench trials and the successful bedside applications.
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