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Schumacher A, Mucha P, Puchalska I, Deptuła M, Wardowska A, Tymińska A, Filipowicz N, Mieczkowska A, Sachadyn P, Piotrowski A, Pikuła M, Cichorek M. Angiopoietin-like growth factor-derived peptides as biological activators of adipose-derived mesenchymal stromal cells. Biomed Pharmacother 2024; 177:117052. [PMID: 38943988 DOI: 10.1016/j.biopha.2024.117052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 06/24/2024] [Accepted: 06/26/2024] [Indexed: 07/01/2024] Open
Abstract
Adipose-derived mesenchymal stromal cells (AD-MSCs) are an essential issue in modern medicine. Extensive preclinical and clinical studies have shown that mesenchymal stromal/stem cells, including AD-MSCs, have specific properties (ability to differentiate into other cells, recruitment to the site of injury) of particular importance in the regenerative process. Ongoing research aims to elucidate factors supporting AD-MSC culture and differentiation in vitro. Angiopoietin-like proteins (ANGPTLs), known for their pleiotropic effects in lipid and glucose metabolism, may play a significant role in this context. Regeneration is a complex and dynamic process controlled by many factors. ANGPTL6 (Angiopoietin-related growth factor, AGF), among many activities modulated the biological activity of stem cells. This study examined the influence of synthesized AGF-derived peptides, designated as AGF9 and AGF27, on AD-MSCs. AGF9 and AGF27 enhanced the viability and migration of AD-MSCs and acted as a chemotactic factor for these cells. AGF9 stimulated chondrogenesis and lipid synthesis during AD-MSCs differentiation, influenced AD-MSCs cytokine secretion and modulated transcriptome for such basic cell activities as migration, transport of molecules, and apoptosis. The ability of AGF9 to modulate the biological activity of AD-MSCs warrants the consideration of this peptide a noteworthy therapeutic agent that deserves further investigation for applications in regenerative medicine.
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Affiliation(s)
- Adriana Schumacher
- Division of Embryology, Medical University of Gdansk, Debinki 1 St, Gdansk 80-211, Poland
| | - Piotr Mucha
- Department of Molecular Biochemistry, University of Gdansk, Wita Stwosza 63 St, Gdansk 80-308, Poland
| | - Izabela Puchalska
- Department of Molecular Biochemistry, University of Gdansk, Wita Stwosza 63 St, Gdansk 80-308, Poland
| | - Milena Deptuła
- Division of Embryology, Laboratory of Tissue Engineering and Regenerative Medicine Medical University of Gdansk, Debinki 1 St, Gdansk 80-211, Poland
| | - Anna Wardowska
- Department of Physiopathology, Medical University of Gdansk, Debinki 7 St, Gdansk 80-211, Poland
| | - Agata Tymińska
- Division of Embryology, Medical University of Gdansk, Debinki 1 St, Gdansk 80-211, Poland
| | - Natalia Filipowicz
- International Research Agenda 3P- Medicine Laboratory, Medical University of Gdansk, Debinki 7 St, Gdansk 80-211, Poland
| | - Alina Mieczkowska
- International Research Agenda 3P- Medicine Laboratory, Medical University of Gdansk, Debinki 7 St, Gdansk 80-211, Poland
| | - Paweł Sachadyn
- Laboratory for Regenerative Biotechnology, Gdansk University of Technology, Narutowicza 11/12 St, Gdansk 80-233, Poland
| | - Arkadiusz Piotrowski
- International Research Agenda 3P- Medicine Laboratory, Medical University of Gdansk, Debinki 7 St, Gdansk 80-211, Poland
| | - Michał Pikuła
- Division of Embryology, Laboratory of Tissue Engineering and Regenerative Medicine Medical University of Gdansk, Debinki 1 St, Gdansk 80-211, Poland
| | - Miroslawa Cichorek
- Division of Embryology, Medical University of Gdansk, Debinki 1 St, Gdansk 80-211, Poland.
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Hahn O, Peters K, Hartmann A, Dannenberger D, Kalbe C. Potential of animal-welfare compliant and sustainably sourced serum from pig slaughter blood. Cell Tissue Res 2024:10.1007/s00441-024-03904-8. [PMID: 38990342 DOI: 10.1007/s00441-024-03904-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 07/04/2024] [Indexed: 07/12/2024]
Abstract
The animal product most used as a stimulatory additive for cell cultivation is still fetal bovine serum (FBS). Besides the ethical concerns regarding serum collection, the main problems of FBS are batch-to-batch variability and the resulting risk of lower reproducibility, the differences between species, the presence of undefined/unknown components, and the risk of contamination. In contrast, pig blood, which is a by-product of slaughter, is a sufficiently available and sustainable resource with a high degree of standardization in terms of donor age, weight, and genetics. The variations in preparations from pig slaughter blood seem to be comparatively low, and consequently, batch effects might be much smaller, suggesting that the reproducibility of the research data obtained may be increased. Our pilot study aimed to investigate, as a proof of concept, whether adult human and porcine stem cells of different tissue origins proliferate and differentiate adequately when FBS is completely or partially replaced by porcine serum (PS). We could show that the human and porcine stem cells were vital and proliferated under partial and full PS supplementation. Furthermore, using PS, the two cell types studied showed tissue-specific differentiation (i.e., lipid vacuoles as a sign of adipogenic or myotubes as a sign of myogenic differentiation). In conclusion, the pig slaughter blood-derived serum has promising potential to be a replacement for FBS in adult stem cell cultures. Therefore, it could serve as a basis for the development of new cell culture supplements.
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Affiliation(s)
- Olga Hahn
- Institute for Cell Biology, University Medical Center Rostock, Rostock, Germany
| | - Kirsten Peters
- Institute for Cell Biology, University Medical Center Rostock, Rostock, Germany
| | - Alexander Hartmann
- Institute of Clinical Chemistry and Laboratory Medicine, University Medical Center Rostock, Rostock, Germany
| | - Dirk Dannenberger
- Research Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, D-18196, Dummerstorf, Germany
| | - Claudia Kalbe
- Research Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, D-18196, Dummerstorf, Germany.
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Dogny C, André-Lévigne D, Kalbermatten DF, Madduri S. Therapeutic Potential and Challenges of Mesenchymal Stem Cell-Derived Exosomes for Peripheral Nerve Regeneration: A Systematic Review. Int J Mol Sci 2024; 25:6489. [PMID: 38928194 PMCID: PMC11203969 DOI: 10.3390/ijms25126489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 06/03/2024] [Accepted: 06/06/2024] [Indexed: 06/28/2024] Open
Abstract
Gap injuries to the peripheral nervous system result in pain and loss of function, without any particularly effective therapeutic options. Within this context, mesenchymal stem cell (MSC)-derived exosomes have emerged as a potential therapeutic option. Thus, the focus of this study was to review currently available data on MSC-derived exosome-mounted scaffolds in peripheral nerve regeneration in order to identify the most promising scaffolds and exosome sources currently in the field of peripheral nerve regeneration. We conducted a systematic review following PRISMA 2020 guidelines. Exosome origins varied (adipose-derived MSCs, bone marrow MSCs, gingival MSC, induced pluripotent stem cells and a purified exosome product) similarly to the materials (Matrigel, alginate and silicone, acellular nerve graft [ANG], chitosan, chitin, hydrogel and fibrin glue). The compound muscle action potential (CMAP), sciatic functional index (SFI), gastrocnemius wet weight and histological analyses were used as main outcome measures. Overall, exosome-mounted scaffolds showed better regeneration than scaffolds alone. Functionally, both exosome-enriched chitin and ANG showed a significant improvement over time in the sciatica functional index, CMAP and wet weight. The best histological outcomes were found in the exosome-enriched ANG scaffold with a high increase in the axonal diameter and muscle cross-section area. Further studies are needed to confirm the efficacy of exosome-mounted scaffolds in peripheral nerve regeneration.
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Affiliation(s)
- Clelia Dogny
- Department of Plastic, Reconstructive and Aesthetic Surgery, Geneva University Hospitals, 1205 Geneva, Switzerland
| | - Dominik André-Lévigne
- Department of Plastic, Reconstructive and Aesthetic Surgery, Geneva University Hospitals, 1205 Geneva, Switzerland
| | - Daniel F. Kalbermatten
- Department of Plastic, Reconstructive and Aesthetic Surgery, Geneva University Hospitals, 1205 Geneva, Switzerland
- Bioengineering and Neuroregeneration Laboratory, Department of Surgery, University of Geneva, 1211 Geneva, Switzerland
| | - Srinivas Madduri
- Department of Plastic, Reconstructive and Aesthetic Surgery, Geneva University Hospitals, 1205 Geneva, Switzerland
- Bioengineering and Neuroregeneration Laboratory, Department of Surgery, University of Geneva, 1211 Geneva, Switzerland
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Sattar MA, Lingens LF, Guillaume VGJ, Goetzl R, Beier JP, Ruhl T. Association between Donor Age and Osteogenic Potential of Human Adipose Stem Cells in Bone Tissue Engineering. Curr Issues Mol Biol 2024; 46:1424-1436. [PMID: 38392210 PMCID: PMC10887920 DOI: 10.3390/cimb46020092] [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: 12/23/2023] [Revised: 01/26/2024] [Accepted: 02/02/2024] [Indexed: 02/24/2024] Open
Abstract
Adipose stem cells (ASCs) have multilineage differentiation capacity and hold great potential for regenerative medicine. Compared to bone marrow-derived mesenchymal stem cells (bmMSCs), ASCs are easier to isolate from abundant sources with significantly higher yields. It is generally accepted that bmMSCs show age-related changes in their proliferation and differentiation potentials, whereas this aspect is still controversial in the case of ASCs. In this review, we evaluated the existing data on the effect of donor age on the osteogenic potential of human ASCs. Overall, a poor agreement has been achieved because of inconsistent findings in the previous studies. Finally, we attempted to delineate the possible reasons behind the lack of agreements reported in the literature. ASCs represent a heterogeneous cell population, and the osteogenic potential of ASCs can be influenced by donor-related factors such as age, but also gender, lifestyle, and the underlying health and metabolic state of donors. Furthermore, future studies should consider experimental factors in in vitro conditions, including passaging, cryopreservation, culture conditions, variations in differentiation protocols, and readout methods.
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Affiliation(s)
- Md Abdus Sattar
- Department of Plastic Surgery, Hand Surgery-Burn Center, University Hospital, Rheinisch-Westfälische Technische Hochschule Aachen, 52074 Aachen, Germany
| | - Lara F Lingens
- Department of Plastic Surgery, Hand Surgery-Burn Center, University Hospital, Rheinisch-Westfälische Technische Hochschule Aachen, 52074 Aachen, Germany
| | - Vincent G J Guillaume
- Department of Plastic Surgery, Hand Surgery-Burn Center, University Hospital, Rheinisch-Westfälische Technische Hochschule Aachen, 52074 Aachen, Germany
| | - Rebekka Goetzl
- Department of Plastic Surgery, Hand Surgery-Burn Center, University Hospital, Rheinisch-Westfälische Technische Hochschule Aachen, 52074 Aachen, Germany
| | - Justus P Beier
- Department of Plastic Surgery, Hand Surgery-Burn Center, University Hospital, Rheinisch-Westfälische Technische Hochschule Aachen, 52074 Aachen, Germany
| | - Tim Ruhl
- Department of Plastic Surgery, Hand Surgery-Burn Center, University Hospital, Rheinisch-Westfälische Technische Hochschule Aachen, 52074 Aachen, Germany
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Kraus A, Damert HG, Meyer F. Interdisciplinary aspects of abdominal and plastic surgery - what does the (abdominal) surgeon need to know? Innov Surg Sci 2023; 8:103-112. [PMID: 38058780 PMCID: PMC10696945 DOI: 10.1515/iss-2023-0042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 07/27/2023] [Indexed: 12/08/2023] Open
Abstract
Introduction The aim was to reflect the established interdisciplinary aspects of general/abdominal and plastic surgery by means of a narrative review. Methods: (i) With specific references out of the medical literature and (ii) own clinical and perioperative as well as operating technical and tactical management experiences obtained in surgical daily practice, we present a choice of options for interdisciplinary cooperation that could be food of thought for other surgeons. Content - Decubital ulcers require pressure relieve, debridement and plastic surgery coverage, e.g., by a rotation flap plasty, V-Y flap or "tensor-fascia-lata" (TFL) flap depending on localization (sacral/gluteal defects, ischiadic tuber). - Coverage of soft tissue defects, e.g., after lymph node dissection, tumor lesions or disturbance of wound healing can be managed with fasciocutaneous or muscle flaps. - Bariatric surgery: Surgical interventions such as butt lift, tummy tuck should be explained and demonstrated in advance and performed commonly after reduction of the body weight. - Abdominoperineal rectum extirpation (APE): Holm's procedure with greater circumferential extent of resection at the mesorectum and the insertion site of the levator muscle at the anal sphicter muscle resulting in a substantial defect is covered by myocutaneous flap plasty. - Hernia surgery: Complicated/recurrent hernias or abdominal wall defect can be covered by flap plasty to achieve functional reconstruction, e.g., using innervated muscle. Thus, abdominal wall can respond better onto changes of pressure and tension. - Necrotising fasciitis: Even in case of suspicious fasciitis, an immediate radical debridement must be performed, followed by intensive care with calculated antibiotic treatment; after appropriate stabilization tissue defects can be covered by mesh graft of flap plasty. - Soft tissue tumor lesions cannot be resected with primary closure to achieve appropriate as intended R0 resection status by means of local radical resection all the time - plastic surgery expertise has to be included into interdisciplinary tumor concepts. - Liposuction/-filling: Liposuction can be used with aesthetic intention after bariatric surgery or for lipedema. Lipofilling is possible for reconstruction and for aesthetic purpose. - Reconstruction of lymphatic vessels: Lymphedema after tumor operations interrupting or blocking lymphatic drainage can be treated with microsurgical reconstructions (such as lympho-venous anastomoses, lympho-lymphatic anastomoses or free microvascular lymph node transfer). - Microsurgery: It is substantial part of modern reconstructive plastic surgery, i.e., surgery of peripheral nerves belongs to this field. For visceral surgery, it can become important for reconstruction of the recurrent laryngeal nerve. - Sternum osteomyelitis: Radical debridement (eventually, complete sternal resection) with conditioning of the wound by vacuum-assisted closure followed by plastic surgery coverage can prevent chronification, threatening mediastinitis, persisting infectious risk, long-term suffering or limited quality of life. Summary The presented selection of single topics can only be an excerpt of all the options for surgical cooperation in daily clinical and surgical practice. Outlook An interdisciplinary approach of abdominal and plastic surgery is characterized by a highly developed cooperation in common surgical interventions including various techniques and tactics highlighting the specifics of the two fields.
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Affiliation(s)
- Armin Kraus
- Department of Plastic, Aesthetic and Hand Surgery, Otto von Guericke University at Magdeburg with University Hospital, Magdeburg, Germany
| | - Hans-Georg Damert
- Department of Plastic, Aesthetic and Hand Surgery, Regional Hospital (Helios-Bördeklinik), Oschersleben/Neindorf, Germany
| | - Frank Meyer
- Department of General, Abdominal, Vascular and Transplant Surgery, Otto von Guericke University at Magdeburg with University Hospital, Magdeburg, Germany
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Wolff A, Frank M, Staehlke S, Springer A, Hahn O, Meyer J, Peters K. 3D Spheroid Cultivation Alters the Extent and Progression of Osteogenic Differentiation of Mesenchymal Stem/Stromal Cells Compared to 2D Cultivation. Biomedicines 2023; 11:biomedicines11041049. [PMID: 37189667 DOI: 10.3390/biomedicines11041049] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/08/2023] [Accepted: 03/17/2023] [Indexed: 03/31/2023] Open
Abstract
Mesenchymal stem/stromal cells (MSC) are capable of progenitor cell fraction renewal or tissue-specific differentiation. These properties are maintained during in vitro cultivation, making them an interesting model system for testing biological and pharmacological compounds. Cell cultivation in 2D is commonly used to study cellular responses, but the 2D environment does not reflect the structural situation of most cell types. Therefore, 3D culture systems have been developed to provide a more accurate physiological environment in terms of cell–cell interactions. Since knowledge about the effects of 3D culture on specific differentiation processes is limited, we studied the effects on osteogenic differentiation and the release of factors affecting bone metabolism for up to 35 days and compared them with the effects in 2D culture. We demonstrated that the selected 3D model allowed the rapid and reliable formation of spheroids that were stable over several weeks and both accelerated and enhanced osteogenic differentiation compared with the 2D culture. Thus, our experiments provide new insights into the effects of cell arrangement of MSC in 2D and 3D. However, due to the different culture dimensions, various detection methods had to be chosen, which in principle limits the explanatory power of the comparison between 2D and 3D cultures.
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Drobek C, Meyer J, Mau R, Wolff A, Peters K, Seitz H. Volumetric mass density measurements of mesenchymal stem cells in suspension using a density meter. iScience 2022; 26:105796. [PMID: 36594013 PMCID: PMC9803822 DOI: 10.1016/j.isci.2022.105796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 09/16/2022] [Accepted: 12/08/2022] [Indexed: 12/14/2022] Open
Abstract
To use regeneratively active cells for cell therapeutic applications, the cells must be isolated from their resident tissues. Different isolation procedures subject these cells to varying degrees of mechanical strain, which can affect the yield of cell number and viability. Knowledge of cell volumetric mass density is important for experimental and numerical optimization of these procedures. Although methods for measuring cell volumetric mass density already exist, they either consume much time and cell material or require a special setup. Therefore, we developed a user-friendly method that is based on the use of readily available instrumentation. The newly developed method is predicated on the linear relationship between the volumetric mass density of the cell suspension and the volumetric mass density, number, and diameter of the cells in the suspension. We used this method to determine the volumetric mass density of mesenchymal stem cells (MSCs) and compared it to results from the established density centrifugation.
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Affiliation(s)
- Christoph Drobek
- Chair of Microfluidics, University of Rostock, 18059 Rostock, Germany
- Corresponding author
| | - Juliane Meyer
- Department of Cell Biology, Rostock University Medical Center, 18057 Rostock, Germany
| | - Robert Mau
- Chair of Microfluidics, University of Rostock, 18059 Rostock, Germany
| | - Anne Wolff
- Department of Cell Biology, Rostock University Medical Center, 18057 Rostock, Germany
| | - Kirsten Peters
- Department of Cell Biology, Rostock University Medical Center, 18057 Rostock, Germany
- Department of Life, Light and Matter, University of Rostock, 18059 Rostock, Germany
- Corresponding author
| | - Hermann Seitz
- Chair of Microfluidics, University of Rostock, 18059 Rostock, Germany
- Department of Life, Light and Matter, University of Rostock, 18059 Rostock, Germany
- Corresponding author
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Waheed TO, Hahn O, Sridharan K, Mörke C, Kamp G, Peters K. Oxidative Stress Response in Adipose Tissue-Derived Mesenchymal Stem/Stromal Cells. Int J Mol Sci 2022; 23:13435. [PMID: 36362223 PMCID: PMC9654835 DOI: 10.3390/ijms232113435] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 10/26/2022] [Accepted: 10/28/2022] [Indexed: 08/27/2023] Open
Abstract
Reactive oxygen species (ROS) can irreversibly damage biological molecules, a process known as oxidative stress. Elevated ROS levels are associated with immune cell activation. Sustained immune system activation can affect many different cells in the environment. One cell type that has been detected in almost all tissues of the body is mesenchymal stem/stromal cells (MSC). MSC possess proliferation and differentiation potential, thus facilitating regeneration processes. However, the regenerative capacity of MSC might be impaired by oxidative stress, and the effects of long-term oxidative stress on MSC functions are sparsely described. The examination of oxidative stress is often performed by exposure to H2O2. Since H2O2 is rapidly degraded, we additionally exposed the cell cultures to glucose oxidase (GOx), resulting in sustained exposure to H2O2. Using these model systems, we have focused on the effects of short- and long-term oxidative stress on viability, migration, differentiation, and signaling. All cellular functions examined were affected by the applied oxidative stress. The differences that occur between pulsed and sustained oxidative stress indicated higher oxidative stress in MSC upon direct H2O2 exposure, whereas the GOx-induced prolonged exposure to H2O2 seems to allow for better cellular adaptation. The mechanisms underlying these different responses are currently unknown.
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Affiliation(s)
- Tawakalitu Okikiola Waheed
- Department of Cell Biology, University Medical Centre Rostock, Schillingallee 69, 18057 Rostock, Germany
| | - Olga Hahn
- Department of Cell Biology, University Medical Centre Rostock, Schillingallee 69, 18057 Rostock, Germany
| | - Kaarthik Sridharan
- Department of Cell Biology, University Medical Centre Rostock, Schillingallee 69, 18057 Rostock, Germany
| | - Caroline Mörke
- Department of Cell Biology, University Medical Centre Rostock, Schillingallee 69, 18057 Rostock, Germany
| | - Günter Kamp
- AMP-Lab GmbH, Mendelstr. 11, 48149 Münster, Germany
| | - Kirsten Peters
- Department of Cell Biology, University Medical Centre Rostock, Schillingallee 69, 18057 Rostock, Germany
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A Comparative Study on the Adipogenic Differentiation of Mesenchymal Stem/Stromal Cells in 2D and 3D Culture. Cells 2022; 11:cells11081313. [PMID: 35455993 PMCID: PMC9029885 DOI: 10.3390/cells11081313] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 04/07/2022] [Accepted: 04/08/2022] [Indexed: 02/04/2023] Open
Abstract
Mesenchymal stem/stromal cells (MSC) are capable of renewing the progenitor cell fraction or differentiating in a tissue-specific manner. Adipogenic differentiation of adipose-tissue-derived MSC (adMSC) is important in various pathological processes. Adipocytes and their progenitors are metabolically active and secrete molecules (adipokines) that have both pro- and anti-inflammatory properties. Cell culturing in 2D is commonly used to study cellular responses, but the 2D environment does not reflect the structural situation for most cell types. Therefore, 3D culture systems have been developed to create an environment considered more physiological. Since knowledge about the effects of 3D cultivation on adipogenic differentiation is limited, we investigated its effects on adipogenic differentiation and adipokine release of adMSC (up to 28 days) and compared these with the effects in 2D. We demonstrated that cultivation conditions are crucial for cell behavior: in both 2D and 3D culture, adipogenic differentiation occurred only after specific stimulation. While the size and structure of adipogenically stimulated 3D spheroids remained stable during the experiment, the unstimulated spheroids showed signs of disintegration. Adipokine release was dependent on culture dimensionality; we found upregulated adiponectin and downregulated pro-inflammatory factors. Our findings are relevant for cell therapeutic applications of adMSC in complex, three-dimensionally arranged tissues.
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Haroutunian GG, Tsaghikian A, Fedorova E, Chaurasia P, Gusella GL, Mosoian A. Electromagnetic Fields Generated by the IteraCoil Device Differentiate Mesenchymal Stem Progenitor Cells Into the Osteogenic Lineage. Bioelectromagnetics 2022; 43:245-256. [PMID: 35391494 PMCID: PMC9325380 DOI: 10.1002/bem.22401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 01/11/2022] [Accepted: 03/20/2022] [Indexed: 11/09/2022]
Abstract
Rapid advances in mesenchymal stem progenitor cells (MSPCs) have rendered impetus into the area of cell therapy and regenerative medicine. The main promise of future stem cell therapies is their reliance on autologous stem cells derived from adipose tissue, which also includes treatments of bone fractures and degeneration. The effectiveness of different electric devices utilized to reprogram MSPCs toward osteogenic differentiation has provided varying degrees of effectiveness for clinical use. Adipose tissue-derived MSPCs were flow-cytometrically characterized and further differentiated into osteoblasts by culturing either in growth medium with pro-osteogenic supplements or without supplements with alternating electromagnetic field (EMF) generated by IteraCoil. IteraCoil is a multi-solenoid coil with a specific complex geometry that creates a 3D-EMF with desired parameters without directly applying electrodes to the cells and tissues. The flow-cytometric analysis of highly enriched (≥95%) adipose-derived MSPCs (CD34- , CD73+ , CD90+ , and CD105+ ) was utilized for the study. Osteoblasts and chondrocyte differentiations were then assessed by specific staining and quantified using ImageJ (National Institutes of Health). The osteoblastic differentiation of MSPCs cultured in regular medium and exposed to EMF at 0.05 and 1 kHz frequencies was compared with MSPCs cultured in a pro-osteogenic supplemented medium. In this study, we demonstrated that EMF from IteraCoil might have affected the signaling pathways that induce the osteogenic differentiation of human adipose-derived MSPCs in the absence of exogenous osteogenic factors. Therefore, EMF-generated osteogenic differentiation of reprogrammed adipose-derived autologous MSPCs may treat the loss of osteoblasts and osteoporosis and open new avenues for the development of regenerative cellular therapy. © 2022 Bioelectromagnetics Society.
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Affiliation(s)
| | - Ashot Tsaghikian
- Data Processing and Field Engineering Corp., Glendale, California
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11
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[Current status and prospects of clinical application of liposuction]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2022; 36:127-132. [PMID: 35038811 PMCID: PMC8844613 DOI: 10.7507/1002-1892.202108077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
OBJECTIVE To review the characteristics and deficiencies of various liposuction methods to provide reference for choosing more suitable liposuction in clinic and ideas for the improvement and development of liposuction equipment. METHODS The literature related to liposuction in recent years was consulted, and the principle, indications as well as existing problems were reviewed. RESULTS Liposuction can be divided into two categories according to the principles of fat separation. The first type relies on physical cutting to separate fat, including suction-assisted liposuction (SAL), power-assisted liposuction (PAL), and water-assisted liposuction (WAL). SAL and PAL are simple to operate and low in price, but the effect of liposuction mainly depends on the experience of the surgeon, and complications such as uneven appearance, hematoma, and ecchymosis may occur. WAL saves time and effort, but has lower cost performance. The second type relies on energy destruction to separate fat, including ultrasound-assisted liposuction, laser-assisted liposuction, and radiofrequency-assisted liposuction. This type of surgery has the advantages of less trauma, fast postoperative recovery, and skin tightening. However, the equipment is more expensive, and has a risk of skin burns. CONCLUSION Liposuction can effectively reduce local fat accumulation, but it still has limitations. Equipment improvement and fat transplantation are important directions for liposuction's future development.
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Ferroni L, De Francesco F, Pinton P, Gardin C, Zavan B. Methods to isolate adipose tissue-derived stem cells. Methods Cell Biol 2022; 171:215-228. [DOI: 10.1016/bs.mcb.2022.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Qu Y, Luan J, Mu D, Wang Q, Li Z, Liu T, Fu S. Does Water-Jet Force Affect Cryopreserved Adipose-Derived Stem Cells? Evidence of Improved Cell Viability and Fat Graft Survival. Ann Plast Surg 2021; 87:199-205. [PMID: 33196537 DOI: 10.1097/sap.0000000000002584] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
BACKGROUND Adipose tissue harvested by liposuctions is an available source of adipose-derived stem cells (ASCs). Water-jet-assisted liposuction is a favorable method for fat collection with little mechanical damage. This study aimed to investigate whether or not the water-jet-assisted liposuction made a difference in the biological characteristics of cryopreserved ASCs and fat graft survival in cell-assisted lipotransfer. METHODS Human lipoaspirates were obtained from the abdomen or thighs of 20 female participants for body contouring. A single surgeon randomly harvested 50 mL of adipose tissue by the water-jet-assisted liposuction and the conventional liposuction, respectively. Adipose-derived stem cells were isolated from lipoaspirates and then cryopreserved for 4 weeks. Cryopreserved ASCs were used to examine the surface markers, cell proliferation, migration, and adipogenic differentiation in vitro. The fat survival of ASCs-enriched grafts from different liposuctions was measured in animal models. RESULTS The cryopreserved ASCs with the water-jet assistance had better capacities of cell proliferation, migration, and adipogenic differentiation and achieved a better survival result of ASCs-enriched fat grafting. CONCLUSIONS Cryopreservation of ASCs with the water-jet force showed more excellent biological characteristics. The water-jet-assisted liposuction was superior to the conventional liposuction in obtaining ASCs and fat survival of coimplantation with grafts.
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Affiliation(s)
- Yaping Qu
- From the Breast Plastic and Reconstructive Surgery Center, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College
| | - Jie Luan
- From the Breast Plastic and Reconstructive Surgery Center, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College
| | - Dali Mu
- From the Breast Plastic and Reconstructive Surgery Center, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College
| | - Qian Wang
- Research Center, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zifei Li
- From the Breast Plastic and Reconstructive Surgery Center, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College
| | - Tong Liu
- From the Breast Plastic and Reconstructive Surgery Center, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College
| | - Su Fu
- From the Breast Plastic and Reconstructive Surgery Center, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College
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Lauvrud AT, Gümüscü R, Wiberg R, Brohlin M, Kelk P, Wiberg M, Kingham PJ. Water jet-assisted lipoaspiration and Sepax cell separation system for the isolation of adipose stem cells with high adipogenic potential. J Plast Reconstr Aesthet Surg 2021; 74:2759-2767. [PMID: 33994109 DOI: 10.1016/j.bjps.2021.03.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 02/05/2021] [Accepted: 03/11/2021] [Indexed: 11/18/2022]
Abstract
INTRODUCTION Water jet-assisted liposuction has gained popularity due to favourable fat grafting outcomes. In this study, we compared stem cells obtained from fat isolated with manual or the water jet-assisted procedure. METHODS Liposuction of abdominal fat was performed using the two methods on each donor (n = 10). Aspirate samples were collagenase digested and the isolated cells seeded in vitro prior to proliferation, adipogenic differentiation and angiogenic activity analyses. RESULTS Cells from either procedure proliferated at similar rates and exhibited a similar colony-forming ability. The cells expressed stem cell markers CD73, CD90 and CD105. In the water jet cell preparations, there were higher numbers of cells expressing CD146. Robust adipogenic differentiation was observed in cultures expanded from both manual and water jet lipoaspirates. Gene analysis showed higher expression of the adipocyte markers aP2 and GLUT4 in the adipocyte-differentiated water jet cell preparations, and ELISA indicated increased secretion of adiponectin from these cells. Both cell groups expressed vasculogenic factors and the water jet cells promoted the highest levels of in vitro angiogenesis. Given these positive results, we further characterised the water jet cells when prepared using an automated closed cell processing unit, the Sepax-2 system (Cytiva). The growth and stem cell properties of the Sepax-processed cells were similar to the standard centrifugation protocol, but there was evidence for greater adipogenic differentiation in the Sepax-processed cells. CONCLUSIONS Water jet lipoaspirates yield cells with high adipogenic potential and angiogenic activity, which may be beneficial for use in cell-assisted lipotransfers.
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Affiliation(s)
- Anne Therese Lauvrud
- Department of Integrative Medical Biology, Umeå University, Sweden; Department of Surgical and Perioperative Sciences, Umeå University, Umeå 907 37, Sweden.
| | - Rojda Gümüscü
- Department of Surgical and Perioperative Sciences, Umeå University, Umeå 907 37, Sweden
| | - Rebecca Wiberg
- Department of Integrative Medical Biology, Umeå University, Sweden; Department of Surgical and Perioperative Sciences, Umeå University, Umeå 907 37, Sweden
| | - Maria Brohlin
- Department of Clinical Microbiology, Infection and Immunity, Umeå University, Sweden
| | - Peyman Kelk
- Department of Integrative Medical Biology, Umeå University, Sweden
| | - Mikael Wiberg
- Department of Integrative Medical Biology, Umeå University, Sweden; Department of Surgical and Perioperative Sciences, Umeå University, Umeå 907 37, Sweden
| | - Paul J Kingham
- Department of Integrative Medical Biology, Umeå University, Sweden
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Ciervo Y, Gatto N, Allen C, Grierson A, Ferraiuolo L, Mead RJ, Shaw PJ. Adipose-derived stem cells protect motor neurons and reduce glial activation in both in vitro and in vivo models of ALS. MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT 2021; 21:413-433. [PMID: 33869658 PMCID: PMC8044387 DOI: 10.1016/j.omtm.2021.03.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 03/23/2021] [Indexed: 12/13/2022]
Abstract
Amyotrophic lateral sclerosis (ALS) is a devastating neurodegenerative condition for which new therapeutic options are urgently needed. We injected GFP+ adipose-derived stem cells (EGFP-ADSCs) directly into the cerebrospinal fluid (CSF) of transgenic SOD1G93A mice, a well-characterized model of familial ALS. Despite short-term survival of the injected cells and limited engraftment efficiency, EGFP-ADSCs improved motor function and delayed disease onset by promoting motor neuron (MN) survival and reducing glial activation. We then tested the in vitro neuroprotective potential of mouse ADSCs in astrocyte/MN co-cultures where ALS astrocytes show neurotoxicity. ADSCs were able to rescue MN death caused by ALS astrocytes derived from symptomatic SOD1G93A mice. Further, ADSCs were found to reduce the inflammatory signature of ALS astrocytes by inhibiting the release of pro-inflammatory mediators and inducing the secretion of neuroprotective factors. Finally, mouse ADSCs were able to protect MNs from the neurotoxicity mediated by human induced astrocytes (iAstrocytes) derived from patients with either sporadic or familial ALS, thus for the first time showing the potential therapeutic translation of ADSCs across the spectrum of human ALS. These data in two translational models of ALS show that, through paracrine mechanisms, ADSCs support MN survival and modulate the toxic microenvironment that contributes to neurodegeneration in ALS.
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Affiliation(s)
- Yuri Ciervo
- Sheffield Institute for Translational Neuroscience (SITraN), Department of Neuroscience, Faculty of Medicine, Dentistry and Health, The University of Sheffield, 385 Glossop Rd., Sheffield S10 2HQ, UK
| | - Noemi Gatto
- Sheffield Institute for Translational Neuroscience (SITraN), Department of Neuroscience, Faculty of Medicine, Dentistry and Health, The University of Sheffield, 385 Glossop Rd., Sheffield S10 2HQ, UK
| | - Chloe Allen
- Sheffield Institute for Translational Neuroscience (SITraN), Department of Neuroscience, Faculty of Medicine, Dentistry and Health, The University of Sheffield, 385 Glossop Rd., Sheffield S10 2HQ, UK
| | - Andrew Grierson
- Sheffield Institute for Translational Neuroscience (SITraN), Department of Neuroscience, Faculty of Medicine, Dentistry and Health, The University of Sheffield, 385 Glossop Rd., Sheffield S10 2HQ, UK
| | - Laura Ferraiuolo
- Sheffield Institute for Translational Neuroscience (SITraN), Department of Neuroscience, Faculty of Medicine, Dentistry and Health, The University of Sheffield, 385 Glossop Rd., Sheffield S10 2HQ, UK
| | - Richard J. Mead
- Sheffield Institute for Translational Neuroscience (SITraN), Department of Neuroscience, Faculty of Medicine, Dentistry and Health, The University of Sheffield, 385 Glossop Rd., Sheffield S10 2HQ, UK
- Corresponding author: Richard J. Mead, PhD, Sheffield Institute for Translational Neuroscience (SITraN), Department of Neuroscience, Faculty of Medicine, Dentistry and Health, The University of Sheffield, 385 Glossop Rd., Sheffield S10 2HQ, UK.
| | - Pamela J. Shaw
- Sheffield Institute for Translational Neuroscience (SITraN), Department of Neuroscience, Faculty of Medicine, Dentistry and Health, The University of Sheffield, 385 Glossop Rd., Sheffield S10 2HQ, UK
- Corresponding author: Pamela J. Shaw, Professor, Dame, Sheffield Institute for Translational Neuroscience (SITraN), Department of Neuroscience, Faculty of Medicine, Dentistry and Health, The University of Sheffield, 385 Glossop Rd., Sheffield S10 2HQ, UK.
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Rhode SC, Beier JP, Ruhl T. Adipose tissue stem cells in peripheral nerve regeneration-In vitro and in vivo. J Neurosci Res 2020; 99:545-560. [PMID: 33070351 DOI: 10.1002/jnr.24738] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/16/2020] [Accepted: 09/30/2020] [Indexed: 12/12/2022]
Abstract
After peripheral nerve injury, Schwann cells (SCs) are crucially involved in several steps of the subsequent regenerative processes, such as the Wallerian degeneration. They promote lysis and phagocytosis of myelin, secrete numbers of neurotrophic factors and cytokines, and recruit macrophages for a biological debridement. However, nerve injuries with a defect size of >1 cm do not show proper tissue regeneration and require a surgical nerve gap reconstruction. To find a sufficient alternative to the current gold standard-the autologous nerve transplant-several cell-based therapies have been developed and were experimentally investigated. One approach aims on the use of adipose tissue stem cells (ASCs). These are multipotent mesenchymal stromal cells that can differentiate into multiple phenotypes along the mesodermal lineage, such as osteoblasts, chondrocytes, and myocytes. Furthermore, ASCs also possess neurotrophic features, that is, they secrete neurotrophic factors like the nerve growth factor, brain-derived neurotrophic factor, neurotrophin-3, ciliary neurotrophic factor, glial cell-derived neurotrophic factor, and artemin. They can also differentiate into the so-called Schwann cell-like cells (SCLCs). These cells share features with naturally occurring SCs, as they also promote nerve regeneration in the periphery. This review gives a comprehensive overview of the use of ASCs in peripheral nerve regeneration and peripheral nerve tissue engineering both in vitro and in vivo. While the sustainability of differentiation of ASCs to SCLCs in vivo is still questionable, ASCs used with different nerve conduits, such as hydrogels or silk fibers, have been shown to promote nerve regeneration.
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Affiliation(s)
- Sophie Charlotte Rhode
- Department of Plastic Surgery, Hand Surgery and Burn Center, University Hospital RWTH Aachen, Aachen, Germany
| | - Justus Patrick Beier
- Department of Plastic Surgery, Hand Surgery and Burn Center, University Hospital RWTH Aachen, Aachen, Germany
| | - Tim Ruhl
- Department of Plastic Surgery, Hand Surgery and Burn Center, University Hospital RWTH Aachen, Aachen, Germany
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Ueberreiter CS, Ueberreiter K, Mohrmann C, Herm J, Herold C. [Long-term evaluation after autologous fat transplantation for breast augmentation]. HANDCHIR MIKROCHIR P 2020; 53:149-158. [PMID: 32777824 DOI: 10.1055/a-1183-4338] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Background The transplantation of autologous fat is an increasingly common but not standardized procedure in aesthetic and reconstructive surgery. Until now only studies about the short-term results after transplantation with autologous fat have been published. In this publication we present our results of a long-term study after fat transplantation.Patients/Material and Methods 14 patients underwent an MRI investigation which was done before and 5-9 years (mean 6 years) years after aesthetic breast lipofilling according to BEAULI-protocol. The difference in volume was calculated with the open source software OsiriX. Two groups were analyzed separately to calculate the influence of body weight changes in final volume gain. In the first group patients with a stable BMI (increase of less than 1 kg/m2) were included. The second group includes patients with a BMI gain exceeding more than 1 kg/m2. The mean increase in BMI was 1,6 kg/m2 (minimum 0 - maximum 3,9). None of the patients lost weight.Results Depending on the desired amount of breast augmentation the patients underwent between one to four operations. An average of 176 ml fat was transplanted per breast and surgery. In the first group a mean volume survival of 74 % (IQR 58 % - 92 %) was observed. In the second group an increase of 135 % (IQR 105 % - 318 %) of the volume of transplanted fat was observed. After an intermediate weight loss one of the patients regained her initial weight.Conclusion In this study the transplantation of autologous fat renders good long-term results. There is a significant correlation between change of weight and fat transplant volume survival over the years. This also explains the very high increase in breast volume in some patients. Autologous fat transplantation seems to be a safe and efficient method for breast augmentation. For further statements studies with larger number of cases are necessary.
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Affiliation(s)
| | | | - Chris Mohrmann
- Klinikum Oldenburg AöR Anästhesiologie/Intensiv-/Notfallmedizin/Schmerztherapie
| | - Juliane Herm
- Charite Universitatsmedizin Berlin Center for Stroke Research Berlin
| | - Christian Herold
- DIAKO Bremen, Chirurgische Klinik, Sektion Plastische und Ästhetische Chirurgie
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18
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Hahn O, Kieb M, Jonitz-Heincke A, Bader R, Peters K, Tischer T. Dose-Dependent Effects of Platelet-Rich Plasma Powder on Chondrocytes In Vitro. Am J Sports Med 2020; 48:1727-1734. [PMID: 32282227 DOI: 10.1177/0363546520911035] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Platelet-rich plasma (PRP) is widely used in sports medicine. However, neither preparation nor parameters for clinical application, such as concentration, timing, and number of applications, are standardized, making research and clinical utilization challenging. PURPOSE To investigate the effect of varying doses of PRP powder in terms of different concentrations, timing, and number of applications on human chondrocytes in a reproducible cell culture model. STUDY DESIGN Controlled laboratory study. METHODS A standardized lyophilized platelet growth factor preparation (PRP powder) was used to stimulate human chondrocytes. Chondrocytes were cultivated for 2 weeks with different stimulation frequencies (2×, 3×, 6×) and different concentrations of PRP powders (0.5%, 1%, 5%). Cell proliferation and metabolic cell activity were analyzed on days 7 and 14. Phenotypic changes were visualized through live-dead staining. Chondrogenic differentiation was quantified with enzyme-linked immunosorbent assay to assess the synthesis of procollagen types 1 and 2. Furthermore, sulfated proteoglycans and glycosaminoglycans were analyzed. RESULTS Human chondrocytes exhibited a significant dose- and time-dependent increase after 14 days in cell number (1% and 5% PRP powder vs unstimulated control: 7.95- and 15.45-fold increase, respectively; 2× vs 6× stimulation with 5% PRP powder: 4.00-fold increase) and metabolic cell activity (1% and 5% PRP powder vs unstimulated control: 3.27-fold and 3.58-fold change, respectively). Furthermore, cells revealed a significant increase in the amount of bone-specific procollagen type 1 (14 days, 1.94-fold) and sulfated glycosaminoglycans (14 days, 2.69-fold); however, no significant change was observed in the amount of cartilage-specific collagen type 2. CONCLUSION We showed that chondrocytes exhibit a significant dose- and time-dependent increase in cell number and metabolic cell activity. The standardized use of growth factor concentrates in cell culture models can contribute to clinical knowledge in terms of dosage and timing of PRP applications. CLINICAL RELEVANCE Problems with PRP, such as the absence of standardization, lack of consistency among studies, and unknown dosage, could be solved by using characterized PRP powder made by pooling and lyophilizing multiple platelet concentrates. The innovative PRP powder generates new possibilities for PRP research, as well as for the treatment of patients.
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Affiliation(s)
- Olga Hahn
- Department of Cell Biology, Rostock University Medical Center, Rostock, Germany
| | - Matthias Kieb
- Department of Sports Medicine, Charité University Medicine Berlin, Berlin, Germany.,Department of Orthopaedics, Rostock University Medical Center, Rostock, Germany
| | | | - Rainer Bader
- Department of Orthopaedics, Rostock University Medical Center, Rostock, Germany
| | - Kirsten Peters
- Department of Cell Biology, Rostock University Medical Center, Rostock, Germany
| | - Thomas Tischer
- Department of Orthopaedics, Rostock University Medical Center, Rostock, Germany
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19
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RNA-Based Strategies for Cardiac Reprogramming of Human Mesenchymal Stromal Cells. Cells 2020; 9:cells9020504. [PMID: 32098400 PMCID: PMC7072829 DOI: 10.3390/cells9020504] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 02/13/2020] [Accepted: 02/17/2020] [Indexed: 02/08/2023] Open
Abstract
Multipotent adult mesenchymal stromal cells (MSCs) could represent an elegant source for the generation of patient-specific cardiomyocytes needed for regenerative medicine, cardiovascular research, and pharmacological studies. However, the differentiation of adult MSC into a cardiac lineage is challenging compared to embryonic stem cells or induced pluripotent stem cells. Here we used non-integrative methods, including microRNA and mRNA, for cardiac reprogramming of adult MSC derived from bone marrow, dental follicle, and adipose tissue. We found that MSC derived from adipose tissue can partly be reprogrammed into the cardiac lineage by transient overexpression of GATA4, TBX5, MEF2C, and MESP1, while cells isolated from bone marrow, and dental follicle exhibit only weak reprogramming efficiency. qRT-PCR and transcriptomic analysis revealed activation of a cardiac-specific gene program and up-regulation of genes known to promote cardiac development. Although we did not observe the formation of fully mature cardiomyocytes, our data suggests that adult MSC have the capability to acquire a cardiac-like phenotype when treated with mRNA coding for transcription factors that regulate heart development. Yet, further optimization of the reprogramming process is mandatory to increase the reprogramming efficiency.
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20
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Taha S, Saller MM, Haas E, Farkas Z, Aszodi A, Giunta R, Volkmer E. Adipose-derived stem/progenitor cells from lipoaspirates: A comparison between the Lipivage200-5 liposuction system and the Body-Jet liposuction system. J Plast Reconstr Aesthet Surg 2020; 73:166-175. [DOI: 10.1016/j.bjps.2019.06.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 05/28/2019] [Accepted: 06/09/2019] [Indexed: 12/13/2022]
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21
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Thankam FG, Chandra I, Diaz C, Dilisio MF, Fleegel J, Gross RM, Agrawal DK. Matrix regeneration proteins in the hypoxia-triggered exosomes of shoulder tenocytes and adipose-derived mesenchymal stem cells. Mol Cell Biochem 2019; 465:75-87. [PMID: 31797254 DOI: 10.1007/s11010-019-03669-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 11/30/2019] [Indexed: 12/14/2022]
Abstract
Regenerative functions of exosomes rely on their contents which are influenced by pathological stimuli, including hypoxia, in rotator cuff tendon injuries (RCTI). The hypoxic environment triggers tenocytes and adjacent adipose-derived mesenchymal stem cells (ADMSCs) to release regenerative mediators to the ECM via the exosomes which elicit autocrine/paracrine responses to protect the tendon matrix from injury. We investigated the exosomal protein contents from tenocytes and subcutaneous ADMSCs from the shoulder of Yucatan microswine cultured under hypoxic conditions (2% O2). The exosomal proteins were detected using high-resolution mass spectrometry nano-LC-MS/MS Tribrid system and were compiled using 'Scaffold' software. Hypoxic exosomes from tenocytes and ADMSCs carried 199 and 65 proteins, respectively. The key proteins identified by mass spectrometry and associated with ECM homeostasis from hypoxic ADMSCs included MMP2, COL6A, CTSD and TN-C and those from hypoxic tenocytes were THSB1, NSEP1, ITIH4 and TN-C. These findings were confirmed at the mRNA and protein level in the hypoxic ADMSCs and tenocytes. These proteins are involved in multiple signaling pathways of ECM repair/regeneration. This warrants further investigations for their translational significance in the management of RCTI.
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Affiliation(s)
- Finosh G Thankam
- Department of Translational Research, Western University of Health Sciences, 309 E. Second Street, Pomona, CA, 91766-1854, USA
| | - Isaiah Chandra
- Departments of Clinical & Translational Science and Orthopedic Surgery, Creighton University School of Medicine, Omaha, NE, 68178, USA
| | - Connor Diaz
- Departments of Clinical & Translational Science and Orthopedic Surgery, Creighton University School of Medicine, Omaha, NE, 68178, USA
| | - Matthew F Dilisio
- Departments of Clinical & Translational Science and Orthopedic Surgery, Creighton University School of Medicine, Omaha, NE, 68178, USA
| | - Jonathan Fleegel
- Departments of Clinical & Translational Science and Orthopedic Surgery, Creighton University School of Medicine, Omaha, NE, 68178, USA
| | - R Michael Gross
- Departments of Clinical & Translational Science and Orthopedic Surgery, Creighton University School of Medicine, Omaha, NE, 68178, USA
| | - Devendra K Agrawal
- Department of Translational Research, Western University of Health Sciences, 309 E. Second Street, Pomona, CA, 91766-1854, USA.
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Human adipocytes and CD34 + cells from the stromal vascular fraction of the same adipose tissue differ in their energy metabolic enzyme configuration. Exp Cell Res 2019; 380:47-54. [PMID: 31002814 DOI: 10.1016/j.yexcr.2019.04.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 03/26/2019] [Accepted: 04/15/2019] [Indexed: 01/24/2023]
Abstract
Adipose tissue plays a role in energy storage and metabolic balance and is composed of different cell types. The metabolic activity of the tissue itself has been a matter of research for a long time, but comparative data about the energy metabolism of different cell types of human subcutaneous adipose tissue are sparse. Therefore, we compared the activity of major energy metabolic pathways of adipocytes and CD34+ cells from the stromal vascular fraction (SVF) separated from the same tissue. This CD34+ cell fraction is enriched with adipose tissue-derived mesenchymal progenitors, as they account for the largest proportion of CD34+ cells of the SVF. Adipocytes displayed significantly higher mitochondrial enzyme capacities compared to CD34+ SVF-cells, as shown by the higher activities of isocitrate dehydrogenase and ß-hydroxyacyl-CoA dehydrogenase. Inversely, the CD34+ SVF-cells showed higher capacities for cytosolic carbohydrate metabolism, represented by the activity of glycolysis and the pentose phosphate pathway. Thus, the CD34+ SVF-cells may ensure the provision of pentose phosphates and reduction equivalents for the replication of DNA during proliferation. The data indicate that these two cell fractions of the human adipose tissue vary in their metabolic configuration adapted to their physiological demands regarding proliferation and differentiation in vivo.
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Abstract
Adipose-derived stem cells (ADSC) have come to be viewed as a ubiquitous solution for aesthetic and reconstructive problems involving loss of tissue volume and age or radiation-induced loss of tissue pliability and vascularity. As the theoretical potential of "stem cell therapy" has captured the public imagination, so the commercial potential of novel therapies is being exploited beyond scientifically sound, hypothesis-driven paradigms and in the absence of evidence establishing clinical efficacy and safety. Moreover, with variations in methods of isolation, manipulation, and reintroduction described, it is unclear how the practitioner with an interest in ADSC can harness the clinical potential in reproducible and scientifically measurable ways. This Continuing Medical Education (CME) article presents a summary of our understanding of what ADSC are, their utility within the field of aesthetic surgery, and the current and future directions for adipose stem cell research.
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Affiliation(s)
- Graeme Ewan Glass
- Attending Plastic and Craniofacial Surgeon, Department of Surgery, Sidra Medicine, Doha, Qatar; and Weill Cornell Medical College, Ar-Rayyan, Qatar
| | - Patrizia Ferretti
- Professor of Regenerative Biology, UCL Great Ormond Street Institute of Child Health, University College London, London, UK
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Meyer J, Salamon A, Mispagel S, Kamp G, Peters K. Energy metabolic capacities of human adipose-derived mesenchymal stromal cells in vitro and their adaptations in osteogenic and adipogenic differentiation. Exp Cell Res 2018; 370:632-642. [PMID: 30036541 DOI: 10.1016/j.yexcr.2018.07.028] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 07/04/2018] [Accepted: 07/18/2018] [Indexed: 01/22/2023]
Abstract
Mesenchymal stromal/stem cells (MSC) are important in tissue homeostasis and regeneration due to their ability for self-renewal and multipotent differentiation. Differentiation, as well as proliferation, requires adaptations in the cell metabolism. However, only few data exist concerning the energy metabolism of non-differentiating and differentiating MSC. In this study we compared capacities of major energy metabolic pathways of MSC from human adipose tissue (adMSC) in vitro in the non-differentiated state with those of osteogenically or adipogenically differentiating adMSC. To this end we quantified the proliferation and differentiation status of adMSC and analyzed maximum enzyme capacities and several enzyme isoforms of major energy metabolic pathways regarding their activity and gene expression. We could show that non-differentiating and osteogenic cultivation conditions induced proliferation and showed increasing capacities of the glycolytic marker enzyme phosphofructokinase as well as the marker enzyme of the pentose phosphate pathway glucose-6-phosphate dehydrogenase. Adipogenic stimulation, which was accompanied by the absence of proliferation, reduced the glycolytic capacity (e.g. decreased glyceraldehyde 3-phosphate dehydrogenase capacity) and induced an increase in mitochondrial enzyme capacities. These changes in energy metabolism might represent an adaptation of adMSC to the high energy demand during proliferation and to the specific cellular functions during osteogenic or adipogenic differentiation respectively.
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Affiliation(s)
- Juliane Meyer
- Department of Cell Biology, University Medicine Rostock, Schillingallee 69, 18057 Rostock, Germany
| | - Achim Salamon
- Department of Cell Biology, University Medicine Rostock, Schillingallee 69, 18057 Rostock, Germany
| | | | - Günter Kamp
- AMP-Lab GmbH, Mendelstraße 11, 48149 Münster, Germany
| | - Kirsten Peters
- Department of Cell Biology, University Medicine Rostock, Schillingallee 69, 18057 Rostock, Germany.
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25
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Kaye KO, Kästner S, Paprottka FJ, Gonser P. The liquid facelift: First hands-on experience with facial water jet-assisted liposuction as an additive technique for rhytidectomy – a case series of 25 patients. J Plast Reconstr Aesthet Surg 2018; 71:171-177. [DOI: 10.1016/j.bjps.2017.10.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2017] [Revised: 08/25/2017] [Accepted: 10/13/2017] [Indexed: 11/27/2022]
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26
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Lüder E, Ramer R, Peters K, Hinz B. Decisive role of P42/44 mitogen-activated protein kinase in Δ 9-tetrahydrocannabinol-induced migration of human mesenchymal stem cells. Oncotarget 2017; 8:105984-105994. [PMID: 29285308 PMCID: PMC5739695 DOI: 10.18632/oncotarget.22517] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 10/28/2017] [Indexed: 12/29/2022] Open
Abstract
In past years, medical interest in Δ9-tetrahydrocannabinol (THC), the major psychoactive ingredient of the Cannabis plant, has been renewed due to the elucidation of the endocannabinoid system and diverse other receptor targets involved in biological cannabinoid effects. The present study therefore investigates the impact of THC on the migration of mesenchymal stem cells (MSCs) which are known to be involved in various regenerative processes such as bone healing. Using Boyden chamber assays, THC was found to increase the migration of adipose-derived MSCs. Migration by THC was almost completely suppressed by the CB1 receptor antagonist AM-251 and to a lesser extent by the CB2 receptor antagonist AM-630. By contrast, the TRPV1 antagonist capsazepine as well as the G protein-coupled receptor 55 (GRP55) agonist O-1602 did not significantly interfere with the promigratory effect of THC. Furthermore, increased migration by THC was fully suppressed by PD98059, an inhibitor of p42/44 mitogen-activated protein kinase (MAPK) activation, and was accompanied by a time-dependent activation of this pathway accordingly. In line with the migration data, additional inhibitor experiments pointed towards a decisive role of the CB1 receptor in conferring THC-induced activation of p42/44 MAPK. Collectively, this study demonstrates THC to exert a promigratory effect on MSCs via a CB1 receptor-dependent activation of p42/44 MAPK phosphorylation. This pathway may be involved in regenerative effects of THC and could be a target of pharmacological intervention.
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Affiliation(s)
- Ellen Lüder
- Institute of Pharmacology and Toxicology, Rostock University Medical Center, Rostock, Germany.,Department of Cell Biology, Rostock University Medical Center, Rostock, Germany
| | - Robert Ramer
- Institute of Pharmacology and Toxicology, Rostock University Medical Center, Rostock, Germany
| | - Kirsten Peters
- Department of Cell Biology, Rostock University Medical Center, Rostock, Germany
| | - Burkhard Hinz
- Institute of Pharmacology and Toxicology, Rostock University Medical Center, Rostock, Germany
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Ciervo Y, Ning K, Jun X, Shaw PJ, Mead RJ. Advances, challenges and future directions for stem cell therapy in amyotrophic lateral sclerosis. Mol Neurodegener 2017; 12:85. [PMID: 29132389 PMCID: PMC5683324 DOI: 10.1186/s13024-017-0227-3] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 11/02/2017] [Indexed: 12/11/2022] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a rapidly progressive neurodegenerative condition where loss of motor neurons within the brain and spinal cord leads to muscle atrophy, weakness, paralysis and ultimately death within 3–5 years from onset of symptoms. The specific molecular mechanisms underlying the disease pathology are not fully understood and neuroprotective treatment options are minimally effective. In recent years, stem cell transplantation as a new therapy for ALS patients has been extensively investigated, becoming an intense and debated field of study. In several preclinical studies using the SOD1G93A mouse model of ALS, stem cells were demonstrated to be neuroprotective, effectively delayed disease onset and extended survival. Despite substantial improvements in stem cell technology and promising results in preclinical studies, several questions still remain unanswered, such as the identification of the most suitable and beneficial cell source, cell dose, route of delivery and therapeutic mechanisms. This review will cover publications in this field and comprehensively discuss advances, challenges and future direction regarding the therapeutic potential of stem cells in ALS, with a focus on mesenchymal stem cells. In summary, given their high proliferation activity, immunomodulation, multi-differentiation potential, and the capacity to secrete neuroprotective factors, adult mesenchymal stem cells represent a promising candidate for clinical translation. However, technical hurdles such as optimal dose, differentiation state, route of administration, and the underlying potential therapeutic mechanisms still need to be assessed.
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Affiliation(s)
- Yuri Ciervo
- Sheffield Institute for Translational Neuroscience (SITraN), Department of Neuroscience, Faculty of Medicine, Dentistry and Health, University of Sheffield, 385a Glossop Rd S10 2HQ, Sheffield, UK.,Tongji University School of Medicine, 1239 Siping Rd, Yangpu Qu, Shanghai, China
| | - Ke Ning
- Sheffield Institute for Translational Neuroscience (SITraN), Department of Neuroscience, Faculty of Medicine, Dentistry and Health, University of Sheffield, 385a Glossop Rd S10 2HQ, Sheffield, UK.,Tongji University School of Medicine, 1239 Siping Rd, Yangpu Qu, Shanghai, China
| | - Xu Jun
- Tongji University School of Medicine, 1239 Siping Rd, Yangpu Qu, Shanghai, China
| | - Pamela J Shaw
- Sheffield Institute for Translational Neuroscience (SITraN), Department of Neuroscience, Faculty of Medicine, Dentistry and Health, University of Sheffield, 385a Glossop Rd S10 2HQ, Sheffield, UK
| | - Richard J Mead
- Sheffield Institute for Translational Neuroscience (SITraN), Department of Neuroscience, Faculty of Medicine, Dentistry and Health, University of Sheffield, 385a Glossop Rd S10 2HQ, Sheffield, UK.
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Is Centrifugation Necessary for Processing Lipoaspirate Harvested via Water-Jet Force Assisted Technique before Grafting? Evidence of Lipoaspirate Concentration With Enhanced Fat Graft Survival. Ann Plast Surg 2017; 77:477-84. [PMID: 27070683 DOI: 10.1097/sap.0000000000000718] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
BACKGROUND Although water-jet force-assisted liposuction technique (WAL) was demonstrated to have favorable effects on fat grafting, controversy continues concerning the application of centrifugation for lipoaspirate harvested via WAL. As a controversial technique, plastic surgeons often get perplexed to the necessity of using centrifugation during fat grafting procedure. In the present study, we adopted the recommended centrifugal intensity (1200g, 3 minutes) to process lipoaspirate and focused on the influence of centrifugation on the fate of lipoaspirate harvested with WAL technique. METHODS Lipoaspirate was obtained from 10 healthy Chinese female patients who underwent cosmetic liposuction. The harvested lipoaspirate was either not centrifuged (group A) or centrifuged at 1200g for 3 minutes (group B). Lipoaspirate from each group was compared in the in vitro and in vivo experiments. The influence of centrifugation on lipoaspirate viability and lipoaspirate survival after grafting were evaluated. RESULTS The viability of the lipoaspirates was similar between equally volumetric uncentrifugal and centrifugal lipoaspirate. However, centrifugation at 1200g for 3 minutes concentrated stromal vascular fraction cells and adipose-derived stem cells in lipoaspirate; greater angiogenesis and weight retention rates were observed in centrifugal lipoaspirate after grafting than those uncentrifugal lipoaspirate. CONCLUSIONS Centrifugation at 1200g for 3 minutes enhanced the survival of lipoaspirate harvested via WAL technique after grafting. Centrifugation at 1200g for 3 minutes was recommended to process lipoaspirate harvested with water-jet force assistance before grafting.
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Van Nieuwenhove I, Salamon A, Adam S, Dubruel P, Van Vlierberghe S, Peters K. Gelatin- and starch-based hydrogels. Part B: In vitro mesenchymal stem cell behavior on the hydrogels. Carbohydr Polym 2017; 161:295-305. [PMID: 28189242 DOI: 10.1016/j.carbpol.2017.01.010] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Revised: 01/02/2017] [Accepted: 01/04/2017] [Indexed: 12/22/2022]
Abstract
Tissue regeneration often occurs only to a limited extent. By providing a three-dimensional matrix serving as a surrogate extracellular matrix that promotes adult stem cell adhesion, proliferation and differentiation, scaffold-guided tissue regeneration aims at overcoming this limitation. In this study, we applied hydrogels made from crosslinkable gelatin, the hydrolyzed form of collagen, and functionalized starch which were characterized in depth and optimized as described in Van Nieuwenhove et al., 2016. "Gelatin- and Starch-Based Hydrogels. Part A: Hydrogel Development, Characterization and Coating", Carbohydrate Polymers 152:129-39. Collagen is the main structural protein in animal connective tissue and the most abundant protein in mammals. Starch is a carbohydrate consisting of a mixture of amylose and amylopectin. Hydrogels were developed with varying chemical composition (ratio of starch to gelatin applied) and different degrees of methacrylation of the applied gelatin phase. The hydrogels used exhibited no adverse effect on viability of the stem cells cultured on them. Moreover, initial cell adhesion did not differ significantly between them, while the strongest proliferation was observed on the hydrogel with the highest degree of cross-linking. On the least crosslinked and thus most flexible hydrogels, the highest degree of adipogenic differentiation was found, while osteogenic differentiation was the strongest on the most rigid, starch-blended hydrogels. Hydrogel coating with extracellular matrix compounds aggrecan or fibronectin prior to cell seeding exhibited no significant effects. Thus, gelatin-based hydrogels can be optimized regarding maximum promotion of either adipogenic or osteogenic stem cell differentiation in vitro, which makes them promising candidates for in vivo evaluation in clinical studies aiming at either soft or hard tissue regeneration.
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Affiliation(s)
- Ine Van Nieuwenhove
- Polymer Chemistry & Biomaterials Group, Ghent University, Krijgslaan 281, Building S4-Bis, 9000 Ghent, Belgium.
| | - Achim Salamon
- Department of Cell Biology, University Medicine Rostock, Schillingallee 69, 18057 Rostock, Germany.
| | - Stefanie Adam
- Department of Cell Biology, University Medicine Rostock, Schillingallee 69, 18057 Rostock, Germany.
| | - Peter Dubruel
- Polymer Chemistry & Biomaterials Group, Ghent University, Krijgslaan 281, Building S4-Bis, 9000 Ghent, Belgium.
| | - Sandra Van Vlierberghe
- Polymer Chemistry & Biomaterials Group, Ghent University, Krijgslaan 281, Building S4-Bis, 9000 Ghent, Belgium.
| | - Kirsten Peters
- Department of Cell Biology, University Medicine Rostock, Schillingallee 69, 18057 Rostock, Germany.
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Myckatyn TM, Wagner IJ, Mehrara BJ, Crosby MA, Park JE, Qaqish BF, Moore DT, Busch EL, Silva AK, Kaur S, Ollila DW, Lee CN. Cancer Risk after Fat Transfer: A Multicenter Case-Cohort Study. Plast Reconstr Surg 2017; 139:11-18. [PMID: 28027219 PMCID: PMC5428547 DOI: 10.1097/prs.0000000000002838] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Fat transfer is an increasingly popular method for refining postmastectomy breast reconstructions. However, concern persists that fat transfer may promote disease recurrence. Adipocytes are derived from adipose-derived stem cells and express adipocytokines that can facilitate active breast cancer cells in laboratory models. The authors sought to evaluate the association between fat transfer to the reconstructed breast and cancer recurrence in patients diagnosed with local or regional invasive breast cancers. METHODS A multicenter, case-cohort study was performed. Eligible patients from four centers (Memorial Sloan Kettering, M. D. Anderson Cancer Center, Alvin J. Siteman Cancer Center, and the University of Chicago) were identified by each site's institutional tumor registry or cancer data warehouse. Eligibility criteria were as follows: mastectomy with immediate breast reconstruction between 2006 and 2011, age older than 21 years, female sex, and incident diagnosis of invasive ductal carcinoma (stage I, II, or III). Cases consisted of all recurrences during the study period, and controls consisted of a 30 percent random sample of the study population. Cox proportional hazards regression was used to evaluate for association between fat transfer and time to recurrence in bivariate and multivariate models. RESULTS The time to disease recurrence unadjusted hazard ratio for fat transfer was 0.99 (95 percent CI, 0.56 to 1.7). After adjustment for age, body mass index, stage, HER2/Neu receptor status, and estrogen receptor status, the hazard ratio was 0.97 (95 percent CI, 0.54 to 1.8). CONCLUSION In this population of breast cancer patients who had mastectomy with immediate reconstruction, fat transfer was not associated with a higher risk of cancer recurrence. CLINICAL QUESTION/LEVEL OF EVIDENCE Therapeutic, III.
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Affiliation(s)
- Terence M Myckatyn
- St. Louis, Mo.; Chapel Hill, N.C.; New York, N.Y.; Houston, Texas; Chicago and Arlington Heights, Ill.; Boston, Mass.; and Columbus, Ohio
- From the Division of Plastic and Reconstructive Surgery, Washington University School of Medicine in Saint Louis, and the Alvin J. Siteman Cancer Center; the Division of Plastic and Reconstructive Surgery, the Department of Biostatistics, the Department of Epidemiology, Gillings School of Global Public Health, the Lineberger Comprehensive Cancer Center, and the Division of Surgical Oncology, Department of Surgery, University of North Carolina; the Department of Surgery, Memorial Sloan Kettering Cancer Center; the Department of Plastic Surgery, M. D. Anderson Cancer Center; the Section of Plastic and Reconstructive Surgery, University of Chicago Medicine and Biological Sciences, University of Chicago; The Plastic Surgery Foundation; the Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School; the Department of Epidemiology, Harvard T. H. Chan School of Public Health; and Plastic and Reconstructive Surgery, Health Services Management and Policy, Ohio State University
| | - I Janelle Wagner
- St. Louis, Mo.; Chapel Hill, N.C.; New York, N.Y.; Houston, Texas; Chicago and Arlington Heights, Ill.; Boston, Mass.; and Columbus, Ohio
- From the Division of Plastic and Reconstructive Surgery, Washington University School of Medicine in Saint Louis, and the Alvin J. Siteman Cancer Center; the Division of Plastic and Reconstructive Surgery, the Department of Biostatistics, the Department of Epidemiology, Gillings School of Global Public Health, the Lineberger Comprehensive Cancer Center, and the Division of Surgical Oncology, Department of Surgery, University of North Carolina; the Department of Surgery, Memorial Sloan Kettering Cancer Center; the Department of Plastic Surgery, M. D. Anderson Cancer Center; the Section of Plastic and Reconstructive Surgery, University of Chicago Medicine and Biological Sciences, University of Chicago; The Plastic Surgery Foundation; the Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School; the Department of Epidemiology, Harvard T. H. Chan School of Public Health; and Plastic and Reconstructive Surgery, Health Services Management and Policy, Ohio State University
| | - Babak J Mehrara
- St. Louis, Mo.; Chapel Hill, N.C.; New York, N.Y.; Houston, Texas; Chicago and Arlington Heights, Ill.; Boston, Mass.; and Columbus, Ohio
- From the Division of Plastic and Reconstructive Surgery, Washington University School of Medicine in Saint Louis, and the Alvin J. Siteman Cancer Center; the Division of Plastic and Reconstructive Surgery, the Department of Biostatistics, the Department of Epidemiology, Gillings School of Global Public Health, the Lineberger Comprehensive Cancer Center, and the Division of Surgical Oncology, Department of Surgery, University of North Carolina; the Department of Surgery, Memorial Sloan Kettering Cancer Center; the Department of Plastic Surgery, M. D. Anderson Cancer Center; the Section of Plastic and Reconstructive Surgery, University of Chicago Medicine and Biological Sciences, University of Chicago; The Plastic Surgery Foundation; the Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School; the Department of Epidemiology, Harvard T. H. Chan School of Public Health; and Plastic and Reconstructive Surgery, Health Services Management and Policy, Ohio State University
| | - Melissa A Crosby
- St. Louis, Mo.; Chapel Hill, N.C.; New York, N.Y.; Houston, Texas; Chicago and Arlington Heights, Ill.; Boston, Mass.; and Columbus, Ohio
- From the Division of Plastic and Reconstructive Surgery, Washington University School of Medicine in Saint Louis, and the Alvin J. Siteman Cancer Center; the Division of Plastic and Reconstructive Surgery, the Department of Biostatistics, the Department of Epidemiology, Gillings School of Global Public Health, the Lineberger Comprehensive Cancer Center, and the Division of Surgical Oncology, Department of Surgery, University of North Carolina; the Department of Surgery, Memorial Sloan Kettering Cancer Center; the Department of Plastic Surgery, M. D. Anderson Cancer Center; the Section of Plastic and Reconstructive Surgery, University of Chicago Medicine and Biological Sciences, University of Chicago; The Plastic Surgery Foundation; the Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School; the Department of Epidemiology, Harvard T. H. Chan School of Public Health; and Plastic and Reconstructive Surgery, Health Services Management and Policy, Ohio State University
| | - Julie E Park
- St. Louis, Mo.; Chapel Hill, N.C.; New York, N.Y.; Houston, Texas; Chicago and Arlington Heights, Ill.; Boston, Mass.; and Columbus, Ohio
- From the Division of Plastic and Reconstructive Surgery, Washington University School of Medicine in Saint Louis, and the Alvin J. Siteman Cancer Center; the Division of Plastic and Reconstructive Surgery, the Department of Biostatistics, the Department of Epidemiology, Gillings School of Global Public Health, the Lineberger Comprehensive Cancer Center, and the Division of Surgical Oncology, Department of Surgery, University of North Carolina; the Department of Surgery, Memorial Sloan Kettering Cancer Center; the Department of Plastic Surgery, M. D. Anderson Cancer Center; the Section of Plastic and Reconstructive Surgery, University of Chicago Medicine and Biological Sciences, University of Chicago; The Plastic Surgery Foundation; the Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School; the Department of Epidemiology, Harvard T. H. Chan School of Public Health; and Plastic and Reconstructive Surgery, Health Services Management and Policy, Ohio State University
| | - Bahjat F Qaqish
- St. Louis, Mo.; Chapel Hill, N.C.; New York, N.Y.; Houston, Texas; Chicago and Arlington Heights, Ill.; Boston, Mass.; and Columbus, Ohio
- From the Division of Plastic and Reconstructive Surgery, Washington University School of Medicine in Saint Louis, and the Alvin J. Siteman Cancer Center; the Division of Plastic and Reconstructive Surgery, the Department of Biostatistics, the Department of Epidemiology, Gillings School of Global Public Health, the Lineberger Comprehensive Cancer Center, and the Division of Surgical Oncology, Department of Surgery, University of North Carolina; the Department of Surgery, Memorial Sloan Kettering Cancer Center; the Department of Plastic Surgery, M. D. Anderson Cancer Center; the Section of Plastic and Reconstructive Surgery, University of Chicago Medicine and Biological Sciences, University of Chicago; The Plastic Surgery Foundation; the Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School; the Department of Epidemiology, Harvard T. H. Chan School of Public Health; and Plastic and Reconstructive Surgery, Health Services Management and Policy, Ohio State University
| | - Dominic T Moore
- St. Louis, Mo.; Chapel Hill, N.C.; New York, N.Y.; Houston, Texas; Chicago and Arlington Heights, Ill.; Boston, Mass.; and Columbus, Ohio
- From the Division of Plastic and Reconstructive Surgery, Washington University School of Medicine in Saint Louis, and the Alvin J. Siteman Cancer Center; the Division of Plastic and Reconstructive Surgery, the Department of Biostatistics, the Department of Epidemiology, Gillings School of Global Public Health, the Lineberger Comprehensive Cancer Center, and the Division of Surgical Oncology, Department of Surgery, University of North Carolina; the Department of Surgery, Memorial Sloan Kettering Cancer Center; the Department of Plastic Surgery, M. D. Anderson Cancer Center; the Section of Plastic and Reconstructive Surgery, University of Chicago Medicine and Biological Sciences, University of Chicago; The Plastic Surgery Foundation; the Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School; the Department of Epidemiology, Harvard T. H. Chan School of Public Health; and Plastic and Reconstructive Surgery, Health Services Management and Policy, Ohio State University
| | - Evan L Busch
- St. Louis, Mo.; Chapel Hill, N.C.; New York, N.Y.; Houston, Texas; Chicago and Arlington Heights, Ill.; Boston, Mass.; and Columbus, Ohio
- From the Division of Plastic and Reconstructive Surgery, Washington University School of Medicine in Saint Louis, and the Alvin J. Siteman Cancer Center; the Division of Plastic and Reconstructive Surgery, the Department of Biostatistics, the Department of Epidemiology, Gillings School of Global Public Health, the Lineberger Comprehensive Cancer Center, and the Division of Surgical Oncology, Department of Surgery, University of North Carolina; the Department of Surgery, Memorial Sloan Kettering Cancer Center; the Department of Plastic Surgery, M. D. Anderson Cancer Center; the Section of Plastic and Reconstructive Surgery, University of Chicago Medicine and Biological Sciences, University of Chicago; The Plastic Surgery Foundation; the Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School; the Department of Epidemiology, Harvard T. H. Chan School of Public Health; and Plastic and Reconstructive Surgery, Health Services Management and Policy, Ohio State University
| | - Amanda K Silva
- St. Louis, Mo.; Chapel Hill, N.C.; New York, N.Y.; Houston, Texas; Chicago and Arlington Heights, Ill.; Boston, Mass.; and Columbus, Ohio
- From the Division of Plastic and Reconstructive Surgery, Washington University School of Medicine in Saint Louis, and the Alvin J. Siteman Cancer Center; the Division of Plastic and Reconstructive Surgery, the Department of Biostatistics, the Department of Epidemiology, Gillings School of Global Public Health, the Lineberger Comprehensive Cancer Center, and the Division of Surgical Oncology, Department of Surgery, University of North Carolina; the Department of Surgery, Memorial Sloan Kettering Cancer Center; the Department of Plastic Surgery, M. D. Anderson Cancer Center; the Section of Plastic and Reconstructive Surgery, University of Chicago Medicine and Biological Sciences, University of Chicago; The Plastic Surgery Foundation; the Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School; the Department of Epidemiology, Harvard T. H. Chan School of Public Health; and Plastic and Reconstructive Surgery, Health Services Management and Policy, Ohio State University
| | - Surinder Kaur
- St. Louis, Mo.; Chapel Hill, N.C.; New York, N.Y.; Houston, Texas; Chicago and Arlington Heights, Ill.; Boston, Mass.; and Columbus, Ohio
- From the Division of Plastic and Reconstructive Surgery, Washington University School of Medicine in Saint Louis, and the Alvin J. Siteman Cancer Center; the Division of Plastic and Reconstructive Surgery, the Department of Biostatistics, the Department of Epidemiology, Gillings School of Global Public Health, the Lineberger Comprehensive Cancer Center, and the Division of Surgical Oncology, Department of Surgery, University of North Carolina; the Department of Surgery, Memorial Sloan Kettering Cancer Center; the Department of Plastic Surgery, M. D. Anderson Cancer Center; the Section of Plastic and Reconstructive Surgery, University of Chicago Medicine and Biological Sciences, University of Chicago; The Plastic Surgery Foundation; the Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School; the Department of Epidemiology, Harvard T. H. Chan School of Public Health; and Plastic and Reconstructive Surgery, Health Services Management and Policy, Ohio State University
| | - David W Ollila
- St. Louis, Mo.; Chapel Hill, N.C.; New York, N.Y.; Houston, Texas; Chicago and Arlington Heights, Ill.; Boston, Mass.; and Columbus, Ohio
- From the Division of Plastic and Reconstructive Surgery, Washington University School of Medicine in Saint Louis, and the Alvin J. Siteman Cancer Center; the Division of Plastic and Reconstructive Surgery, the Department of Biostatistics, the Department of Epidemiology, Gillings School of Global Public Health, the Lineberger Comprehensive Cancer Center, and the Division of Surgical Oncology, Department of Surgery, University of North Carolina; the Department of Surgery, Memorial Sloan Kettering Cancer Center; the Department of Plastic Surgery, M. D. Anderson Cancer Center; the Section of Plastic and Reconstructive Surgery, University of Chicago Medicine and Biological Sciences, University of Chicago; The Plastic Surgery Foundation; the Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School; the Department of Epidemiology, Harvard T. H. Chan School of Public Health; and Plastic and Reconstructive Surgery, Health Services Management and Policy, Ohio State University
| | - Clara N Lee
- St. Louis, Mo.; Chapel Hill, N.C.; New York, N.Y.; Houston, Texas; Chicago and Arlington Heights, Ill.; Boston, Mass.; and Columbus, Ohio
- From the Division of Plastic and Reconstructive Surgery, Washington University School of Medicine in Saint Louis, and the Alvin J. Siteman Cancer Center; the Division of Plastic and Reconstructive Surgery, the Department of Biostatistics, the Department of Epidemiology, Gillings School of Global Public Health, the Lineberger Comprehensive Cancer Center, and the Division of Surgical Oncology, Department of Surgery, University of North Carolina; the Department of Surgery, Memorial Sloan Kettering Cancer Center; the Department of Plastic Surgery, M. D. Anderson Cancer Center; the Section of Plastic and Reconstructive Surgery, University of Chicago Medicine and Biological Sciences, University of Chicago; The Plastic Surgery Foundation; the Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School; the Department of Epidemiology, Harvard T. H. Chan School of Public Health; and Plastic and Reconstructive Surgery, Health Services Management and Policy, Ohio State University
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Herzmann N, Salamon A, Fiedler T, Peters K. Lipopolysaccharide induces proliferation and osteogenic differentiation of adipose-derived mesenchymal stromal cells in vitro via TLR4 activation. Exp Cell Res 2017; 350:115-122. [DOI: 10.1016/j.yexcr.2016.11.012] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 11/04/2016] [Accepted: 11/15/2016] [Indexed: 12/22/2022]
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Dolen U, Cohen JB, Overschmidt B, Tenenbaum MM, Myckatyn TM. Fat Grafting with Tissue Liquefaction Technology as an Adjunct to Breast Reconstruction. Aesthetic Plast Surg 2016; 40:854-862. [PMID: 27562834 PMCID: PMC5133286 DOI: 10.1007/s00266-016-0690-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Accepted: 08/04/2016] [Indexed: 01/23/2023]
Abstract
Background Tissue liquefaction technology (TLT) delivers warmed saline from the liposuction cannula tip at low pressure pulses to disaggregate adipocytes. This technology differs significantly from that used in other liposuction devices including water jet-assisted liposuction. Here we introduce our early experience with this technology in the setting of fat transfer for revision breast reconstruction. Methods A retrospective chart review of 136 consecutive patients who underwent fat harvest with TLT and subsequent transfer into 237 breast reconstructions was conducted at a single institution. This two-surgeon series examined donor and recipient site complication rates over a median follow-up of 143 days [87–233]. Results The overall complication rate was 28.7 %, of which the majority (22.1 %) was fat necrosis at the recipient site as documented by any clinical, imaging, or pathologic evidence. The abdomen served as the donor site for half of the cases. Donor site complications were limited to widespread ecchymosis of the donor site notable in 10.4 % of cases. Twenty-five percent of patients had received postmastectomy radiotherapy prior to fat transfer. Prior to revision with fat transfer, implant-based breast reconstruction was used in 75.5 % of cases, and autologous flaps in the remainder. Fat transfer was combined with other reconstructive procedures 94.1 % of the time. Conclusions TLT can be used to harvest adipocytes for fat transfer with donor site morbidity and recipient site complications comparable to other modalities. The efficiency and quality of harvested fat makes this technology appealing for wide spread adoption during fat transfer. Level of Evidence IV This journal requires that the authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266.
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Affiliation(s)
- Utku Dolen
- Division of Plastic and Reconstructive Surgery, Washington University School of Medicine, 1040 N. Mason, Ste 124, St Louis, MO, 63141, USA
| | - Justin B Cohen
- Division of Plastic and Reconstructive Surgery, Washington University School of Medicine, 1040 N. Mason, Ste 124, St Louis, MO, 63141, USA
| | - Bo Overschmidt
- Division of Plastic and Reconstructive Surgery, Washington University School of Medicine, 1040 N. Mason, Ste 124, St Louis, MO, 63141, USA
| | - Marissa M Tenenbaum
- Division of Plastic and Reconstructive Surgery, Washington University School of Medicine, 1040 N. Mason, Ste 124, St Louis, MO, 63141, USA
| | - Terence M Myckatyn
- Division of Plastic and Reconstructive Surgery, Washington University School of Medicine, 1040 N. Mason, Ste 124, St Louis, MO, 63141, USA.
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Di Vitantonio H, De Paulis D, Del Maestro M, Ricci A, Dechordi SR, Marzi S, Millimaggi DF, Galzio RJ. Dural repair using autologous fat: Our experience and review of the literature. Surg Neurol Int 2016; 7:S463-8. [PMID: 27500007 PMCID: PMC4960926 DOI: 10.4103/2152-7806.185777] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Accepted: 04/27/2016] [Indexed: 12/11/2022] Open
Abstract
Background: Various materials have been proposed to obliterate dead spaces and to reconstruct dural defects during a neurosurgical approach. This study describes our technique of using the abdominal autologous fat graft and evaluates the complications and characteristics related to the use of this tissue during cranial procedures. Methods: Autologous fat grafts were used in 296 patients with basicranial and convexity extraaxial tumors from April 2005 to January 2015. The adipose tissue was removed from the paraumbilical abdominal region and was transformed into a thin foil. When possible, a watertight suture was made between the dural or bone edge with a fat graft. We always used fibrin glue to reinforce the dural closure. Results: Complications occurred between 2 days and 1 year following procedure. Cerebrospinal fluid leaks were found in 11 cases. No case of mortality, pseudomeningoceles, fistula, infections, bacterial meningitides, or lipoid meningitides was reported. No patient required removal of the graft. No adhesion was observed between the brain and the autologous fat. Other fat-related complications observed were 2 cases of fat necrosis in the abdomen and 2 cases of abdominal hemorrhage. Conclusion: The technique of harvesting and applying fat grafts is fairly simple, although it must be performed meticulously to be effective. Our experience has led us to believe that the use of fat grafts presents low morbidity and mortality. However, a neurosurgeon should never forget the possible late or early complications related to the use of fat grafts.
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Affiliation(s)
- Hambra Di Vitantonio
- Department of Life, Health and Environmental Sciences (MESVA), University of L'Aquila, L'Aquila, Italy
| | - Danilo De Paulis
- Department of Neurosurgery, San Salvatore City Hospital, L'Aquila, Italy
| | - Mattia Del Maestro
- Department of Life, Health and Environmental Sciences (MESVA), University of L'Aquila, L'Aquila, Italy
| | - Alessandro Ricci
- Department of Neurosurgery, San Salvatore City Hospital, L'Aquila, Italy
| | - Soheila Raysi Dechordi
- Department of Life, Health and Environmental Sciences (MESVA), University of L'Aquila, L'Aquila, Italy
| | - Sara Marzi
- Department of Neurosurgery, San Salvatore City Hospital, L'Aquila, Italy
| | - Daniele F Millimaggi
- Department of Life, Health and Environmental Sciences (MESVA), University of L'Aquila, L'Aquila, Italy
| | - Renato J Galzio
- Department of Life, Health and Environmental Sciences (MESVA), University of L'Aquila, L'Aquila, Italy
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Zielins ER, Brett EA, Longaker MT, Wan DC. Autologous Fat Grafting: The Science Behind the Surgery. Aesthet Surg J 2016; 36:488-96. [PMID: 26961989 DOI: 10.1093/asj/sjw004] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
An invaluable part of the plastic surgeon's technical arsenal for soft tissue contouring, fat grafting continues to be plagued by unpredictable outcomes, resulting in either reoperation and/or patient dissatisfaction. Thus, extensive research has been conducted into the effects of adipose tissue procurement, processing, and placement on fat graft quality at both the cellular level and in terms of overall volume retention. Herein, we present an overview of the vast body of literature in these areas, with additional discussion of cell-assisted lipotransfer as a therapy to improve volume retention, and on the controversial use of autologous fat in the setting of prior irradiation.
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Affiliation(s)
- Elizabeth R Zielins
- From the Department of Surgery, Stanford University School of Medicine, Stanford, CA
| | - Elizabeth A Brett
- From the Department of Surgery, Stanford University School of Medicine, Stanford, CA
| | - Michael T Longaker
- From the Department of Surgery, Stanford University School of Medicine, Stanford, CA
| | - Derrick C Wan
- From the Department of Surgery, Stanford University School of Medicine, Stanford, CA
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Herzmann N, Salamon A, Fiedler T, Peters K. Analysis of migration rate and chemotaxis of human adipose-derived mesenchymal stem cells in response to LPS and LTA in vitro. Exp Cell Res 2016; 342:95-103. [PMID: 26997527 DOI: 10.1016/j.yexcr.2016.03.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Revised: 02/17/2016] [Accepted: 03/16/2016] [Indexed: 11/18/2022]
Abstract
Mesenchymal stem cells (MSC) are able to stimulate the regeneration of injured tissue. Since bacterial infections are common complications in wound healing, bacterial pathogens and their components come into direct contact with MSC. The interaction with bacterial structures influences the proliferation, differentiation and migratory activity of the MSC, which might be of relevance during regeneration. Studies on MSC migration in response to bacterial components have shown different results depending on the cell type. Here, we analyzed the migration rate and chemotaxis of human adipose-derived MSC (adMSC) in response to the basic cell-wall components lipopolysaccharide (LPS) of Gram-negative bacteria and lipoteichoic acid (LTA) of Gram-positive bacteria in vitro. To this end, we used transwell and scratch assays, as well as a specific chemotaxis assay combined with live-cell imaging. We found no significant influence of LPS or LTA on the migration rate of adMSC in transwell or scratch assays. Furthermore, in the µ-slide chemotaxis assay, the stimulation with LPS did not exert any chemotactic effect on adMSC.
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Affiliation(s)
- Nicole Herzmann
- Department of Cell Biology, University Medicine Rostock, Schillingallee 69, D-18057 Rostock, Germany
| | - Achim Salamon
- Department of Cell Biology, University Medicine Rostock, Schillingallee 69, D-18057 Rostock, Germany
| | - Tomas Fiedler
- Institute for Medical Microbiology, Virology and Hygiene, University Medicine Rostock, Schillingallee 70, D-18057 Rostock, Germany
| | - Kirsten Peters
- Department of Cell Biology, University Medicine Rostock, Schillingallee 69, D-18057 Rostock, Germany.
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Bony C, Cren M, Domergue S, Toupet K, Jorgensen C, Noël D. Adipose Mesenchymal Stem Cells Isolated after Manual or Water-jet-Assisted Liposuction Display Similar Properties. Front Immunol 2016; 6:655. [PMID: 26834736 PMCID: PMC4716140 DOI: 10.3389/fimmu.2015.00655] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Accepted: 12/21/2015] [Indexed: 12/27/2022] Open
Abstract
Mesenchymal stem or stromal cells (MSC) are under investigation in many clinical trials for their therapeutic potential in a variety of diseases, including autoimmune and inflammatory disorders. One of the main sources of MSCs is the adipose tissue, which is mainly obtained by manual liposuction using a cannula linked to a syringe. However, in the past years, a number of devices for fat liposuction intended for clinical use have been commercialized but few papers have compared these procedures in terms of stromal vascular fraction (SVF) or adipose mesenchymal stromal cells (ASC). The objective of the present study was to compare and qualify for clinical use the ASC obtained from fat isolated with the manual or the Bodyjet® water-jet-assisted procedure. Although the initial number of cells obtained after collagenase digestion was higher with the manual procedure, the percentage of dead cells, the number of colony forming unit-fibroblast and the phenotype of cells were identical in the SVF at isolation (day 0) and in the ASC populations at day 14. We also showed that the osteogenic and adipogenic differentiation potentials of ASCs were identical between preparations while a slight but significant higher in vitro immunosuppressive effect was observed with ASCs isolated from fat removed with a cannula. The difference in the immunomodulatory effect between ASC populations was, however, not observed in vivo using the delayed-type hypersensitivity (DTH) model. Our data, therefore, indicate that the procedure for fat liposuction does not impact the characteristics or the therapeutic function of ASCs.
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Affiliation(s)
- Claire Bony
- U1183, INSERM, Hôpital Saint-Eloi, Montpellier, France; UFR de Médecine, Montpellier University, Montpellier, France
| | - Mailys Cren
- U1183, INSERM, Hôpital Saint-Eloi, Montpellier, France; UFR de Médecine, Montpellier University, Montpellier, France
| | - Sophie Domergue
- U1183, INSERM, Hôpital Saint-Eloi, Montpellier, France; UFR de Médecine, Montpellier University, Montpellier, France; Chirurgie Plastique Reconstructrice et Esthétique, Hôpital Gui de Chauliac, Montpellier, France
| | - Karine Toupet
- U1183, INSERM, Hôpital Saint-Eloi, Montpellier, France; UFR de Médecine, Montpellier University, Montpellier, France
| | - Christian Jorgensen
- U1183, INSERM, Hôpital Saint-Eloi, Montpellier, France; UFR de Médecine, Montpellier University, Montpellier, France; Service d'Immuno-Rhumatologie Thérapeutique, Hôpital Lapeyronie, Montpellier, France
| | - Danièle Noël
- U1183, INSERM, Hôpital Saint-Eloi, Montpellier, France; UFR de Médecine, Montpellier University, Montpellier, France; Service d'Immuno-Rhumatologie Thérapeutique, Hôpital Lapeyronie, Montpellier, France
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Vial IN, Peter Rubin J. Commentary on: isolation and differentiation potential of human mesenchymal stem cells from adipose tissue harvested by water jet-assisted liposuction. Aesthet Surg J 2015; 35:1040-1. [PMID: 26427509 DOI: 10.1093/asj/sjv176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/11/2015] [Indexed: 11/14/2022] Open
Affiliation(s)
- Ivan N Vial
- From the Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - J Peter Rubin
- From the Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA, USA
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