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Starzonek C, Mhamdi-Ghodbani M, Henning S, Bender M, Degenhardt S, Chen IP, Said M, Greinert R, Volkmer B. Enrichment of Human Dermal Stem Cells from Primary Cell Cultures through the Elimination of Fibroblasts. Cells 2023; 12:cells12060949. [PMID: 36980290 PMCID: PMC10047019 DOI: 10.3390/cells12060949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 03/07/2023] [Accepted: 03/17/2023] [Indexed: 03/30/2023] Open
Abstract
Dermal stem cells (DSCs), which are progenitor cells of melanocytes, are isolated from human foreskin and cultivated as mixed cultures containing both DSCs and fibroblasts in varying proportions. These contaminating fibroblasts may have an impact on the results of experimental studies and are a serious limitation for certain applications. The aim of the present study was to purify or enrich DSCs-an indispensable step towards future investigations. Applying different methods, we demonstrated that highly enriched DSCs with a good recovery rate can be obtained through positive selection with MACS® immunomagnetic cell sorting. These DSCs remain vital and proliferate constantly in culture, maintaining a high level of purity after enrichment. Other approaches such as treatment with Geneticin or selective detachment were not suitable to purify DSC-fibroblast co-cultures. Overall, enriched DSCs represent a novel and unique model to study the effects of UV radiation on the differentiation of DSCs into melanocytes and their potential relevance in the genesis of malignant melanoma.
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Affiliation(s)
- Christin Starzonek
- Skin Cancer Center, Division of Molecular Cell Biology, Elbe Kliniken Stade-Buxtehude, 21614 Buxtehude, Germany
| | - Mouna Mhamdi-Ghodbani
- Skin Cancer Center, Division of Molecular Cell Biology, Elbe Kliniken Stade-Buxtehude, 21614 Buxtehude, Germany
| | - Stefan Henning
- Skin Cancer Center, Division of Molecular Cell Biology, Elbe Kliniken Stade-Buxtehude, 21614 Buxtehude, Germany
| | - Marc Bender
- Skin Cancer Center, Division of Molecular Cell Biology, Elbe Kliniken Stade-Buxtehude, 21614 Buxtehude, Germany
| | - Sarah Degenhardt
- Skin Cancer Center, Division of Molecular Cell Biology, Elbe Kliniken Stade-Buxtehude, 21614 Buxtehude, Germany
| | - I-Peng Chen
- Skin Cancer Center, Division of Molecular Cell Biology, Elbe Kliniken Stade-Buxtehude, 21614 Buxtehude, Germany
| | | | - Rüdiger Greinert
- Skin Cancer Center, Division of Molecular Cell Biology, Elbe Kliniken Stade-Buxtehude, 21614 Buxtehude, Germany
| | - Beate Volkmer
- Skin Cancer Center, Division of Molecular Cell Biology, Elbe Kliniken Stade-Buxtehude, 21614 Buxtehude, Germany
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Le Q, Madhu V, Hart JM, Farber CR, Zunder ER, Dighe AS, Cui Q. Current evidence on potential of adipose derived stem cells to enhance bone regeneration and future projection. World J Stem Cells 2021; 13:1248-1277. [PMID: 34630861 PMCID: PMC8474721 DOI: 10.4252/wjsc.v13.i9.1248] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 05/22/2021] [Accepted: 08/18/2021] [Indexed: 02/06/2023] Open
Abstract
Injuries to the postnatal skeleton are naturally repaired through successive steps involving specific cell types in a process collectively termed “bone regeneration”. Although complex, bone regeneration occurs through a series of well-orchestrated stages wherein endogenous bone stem cells play a central role. In most situations, bone regeneration is successful; however, there are instances when it fails and creates non-healing injuries or fracture nonunion requiring surgical or therapeutic interventions. Transplantation of adult or mesenchymal stem cells (MSCs) defined by the International Society for Cell and Gene Therapy (ISCT) as CD105+CD90+CD73+CD45-CD34-CD14orCD11b-CD79αorCD19-HLA-DR- is being investigated as an attractive therapy for bone regeneration throughout the world. MSCs isolated from adipose tissue, adipose-derived stem cells (ADSCs), are gaining increasing attention since this is the most abundant source of adult stem cells and the isolation process for ADSCs is straightforward. Currently, there is not a single Food and Drug Administration (FDA) approved ADSCs product for bone regeneration. Although the safety of ADSCs is established from their usage in numerous clinical trials, the bone-forming potential of ADSCs and MSCs, in general, is highly controversial. Growing evidence suggests that the ISCT defined phenotype may not represent bona fide osteoprogenitors. Transplantation of both ADSCs and the CD105- sub-population of ADSCs has been reported to induce bone regeneration. Most notably, cells expressing other markers such as CD146, AlphaV, CD200, PDPN, CD164, CXCR4, and PDGFRα have been shown to represent osteogenic sub-population within ADSCs. Amongst other strategies to improve the bone-forming ability of ADSCs, modulation of VEGF, TGF-β1 and BMP signaling pathways of ADSCs has shown promising results. The U.S. FDA reveals that 73% of Investigational New Drug applications for stem cell-based products rely on CD105 expression as the “positive” marker for adult stem cells. A concerted effort involving the scientific community, clinicians, industries, and regulatory bodies to redefine ADSCs using powerful selection markers and strategies to modulate signaling pathways of ADSCs will speed up the therapeutic use of ADSCs for bone regeneration.
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Affiliation(s)
- Quang Le
- Department of Orthopaedic Surgery, University of Virginia School of Medicine, Charlottesville, VA 22908, United States
| | - Vedavathi Madhu
- Orthopaedic Surgery Research, Thomas Jefferson University, Philadelphia, PA 19107, United States
| | - Joseph M Hart
- Department of Orthopaedic Surgery, University of Virginia School of Medicine, Charlottesville, VA 22908, United States
| | - Charles R Farber
- Center for Public Health Genomics, University of Virginia, Charlottesville, VA 22908, United States
- Departments of Public Health Sciences and Biochemistry and Molecular Genetics, University of Virginia, Charlottesville, VA 22908, United States
| | - Eli R Zunder
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA 22908, United States
| | - Abhijit S Dighe
- Department of Orthopaedic Surgery, University of Virginia School of Medicine, Charlottesville, VA 22908, United States
| | - Quanjun Cui
- Department of Orthopaedic Surgery, University of Virginia School of Medicine, Charlottesville, VA 22908, United States
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Elahi N, Rizwan M. Progress and prospects of magnetic iron oxide nanoparticles in biomedical applications: A review. Artif Organs 2021; 45:1272-1299. [PMID: 34245037 DOI: 10.1111/aor.14027] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 06/09/2021] [Accepted: 06/14/2021] [Indexed: 12/26/2022]
Abstract
Nanoscience has been considered as one of the most substantial research in modern science. The utilization of nanoparticle (NP) materials provides numerous advantages in biomedical applications due to their unique properties. Among various types of nanoparticles, the magnetic nanoparticles (MNPs) of iron oxide possess intrinsic features, which have been efficiently exploited for biomedical purposes including drug delivery, magnetic resonance imaging, Magnetic-activated cell sorting, nanobiosensors, hyperthermia, and tissue engineering and regenerative medicine. The size and shape of nanostructures are the main factors affecting the physicochemical features of superparamagnetic iron oxide nanoparticles, which play an important role in the improvement of MNP properties, and can be controlled by appropriate synthesis strategies. On the other hand, the proper modification and functionalization of the surface of iron oxide nanoparticles have significant effects on the improvement of physicochemical and mechanical features, biocompatibility, stability, and surface activity of MNPs. This review focuses on popular methods of fabrication, beneficial surface coatings with regard to the main required features for their biomedical use, as well as new applications.
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Affiliation(s)
- Narges Elahi
- Department of Tissue Engineering and Applied Cell Sciences, School of Advance Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran.,Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Fasa University of Medical Sciences, Fasa, Iran.,Department of Medical Nanotechnology, School of Advance Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Muhammad Rizwan
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON, Canada
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Gomez-Salazar M, Gonzalez-Galofre ZN, Casamitjana J, Crisan M, James AW, Péault B. Five Decades Later, Are Mesenchymal Stem Cells Still Relevant? Front Bioeng Biotechnol 2020; 8:148. [PMID: 32185170 PMCID: PMC7058632 DOI: 10.3389/fbioe.2020.00148] [Citation(s) in RCA: 91] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Accepted: 02/13/2020] [Indexed: 12/13/2022] Open
Abstract
Mesenchymal stem cells are culture-derived mesodermal progenitors isolatable from all vascularized tissues. In spite of multiple fundamental, pre-clinical and clinical studies, the native identity and role in tissue repair of MSCs have long remained elusive, with MSC selection in vitro from total cell suspensions essentially unchanged as a mere primary culture for half a century. Recent investigations have helped understand the tissue origin of these progenitor cells, and uncover alternative effects of MSCs on tissue healing via growth factor secretion and interaction with the immune system. In this review, we describe current trends in MSC biology and discuss how these may improve the use of these therapeutic cells in tissue engineering and regenerative medicine.
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Affiliation(s)
- Mario Gomez-Salazar
- MRC Centre for Regenerative Medicine and Centre for Cardiovascular Science, The University of Edinburgh, Edinburgh, United Kingdom
| | - Zaniah N Gonzalez-Galofre
- MRC Centre for Regenerative Medicine and Centre for Cardiovascular Science, The University of Edinburgh, Edinburgh, United Kingdom
| | - Joan Casamitjana
- MRC Centre for Regenerative Medicine and Centre for Cardiovascular Science, The University of Edinburgh, Edinburgh, United Kingdom
| | - Mihaela Crisan
- MRC Centre for Regenerative Medicine and Centre for Cardiovascular Science, The University of Edinburgh, Edinburgh, United Kingdom
| | - Aaron W James
- Orthopaedic Hospital Research Center and Broad Stem Cell Research Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States.,Department of Pathology, Johns Hopkins University, Baltimore, MD, United States
| | - Bruno Péault
- MRC Centre for Regenerative Medicine and Centre for Cardiovascular Science, The University of Edinburgh, Edinburgh, United Kingdom.,Orthopaedic Hospital Research Center and Broad Stem Cell Research Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
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